WO1994006245A1 - A monitor system - Google Patents

A monitor system Download PDF

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Publication number
WO1994006245A1
WO1994006245A1 PCT/KR1993/000074 KR9300074W WO9406245A1 WO 1994006245 A1 WO1994006245 A1 WO 1994006245A1 KR 9300074 W KR9300074 W KR 9300074W WO 9406245 A1 WO9406245 A1 WO 9406245A1
Authority
WO
WIPO (PCT)
Prior art keywords
monitor
mirrors
mirror
picture
reflection
Prior art date
Application number
PCT/KR1993/000074
Other languages
French (fr)
Inventor
Hyeong Gon Lee
Original Assignee
Hyeong Gon Lee
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hyeong Gon Lee filed Critical Hyeong Gon Lee
Priority to AU49847/93A priority Critical patent/AU4984793A/en
Publication of WO1994006245A1 publication Critical patent/WO1994006245A1/en

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00Systems with reflecting surfaces, with or without refracting elements
    • G02B17/02Catoptric systems, e.g. image erecting and reversing system
    • G02B17/023Catoptric systems, e.g. image erecting and reversing system for extending or folding an optical path, e.g. delay lines
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/20Filters
    • G02B5/26Reflecting filters
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/08Mirrors
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/64Constructional details of receivers, e.g. cabinets or dust covers
    • H04N5/65Holding-devices for protective discs or for picture masks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/12Picture reproducers
    • H04N9/31Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141Constructional details thereof

Definitions

  • the present invention relates to the system for pro ⁇ viding clear picture quality and safe environment while using a monitor, and more particularly to a monitor syst ⁇ em for removing various factors of deteriorating the pic ⁇ ture quality such as harmful electromagnetic waves and u- nnecessary lights emitted from the monitor, spreading ph ⁇ enomenon of colors and the phenomenon of reflection at b- oundary surface occurring at the panel of the monitor, a- nd alteration of color while using the filter and reflec ⁇ tion at filter surface.
  • the conventional system used to break the electroma- gnetic waves of the monitor is the method using a transm ⁇ ission filter, which selectively transmits harmless ligh ⁇ ts only and reflects the harmful lights and electromagne ⁇ tic waves by installing it at the front of the monitor p- icture.
  • interception of harmful waves is effective on the assumption that harmful waves are emitt ⁇ ed from the reverse side of the transmission filter, i.e., from the monitor panel only.
  • harmful waves inc ⁇ ident upon the front side of the filter are reflected to ⁇ ward the human body again, and thus there still remains the possible damage due to the harmful waves.
  • the aforesaid system has the problems which colors of the monitor picture alter and quality of the picture deteriorates due to the composite optical ph ⁇ enomena such as reflection, refraction, scattering or ab- sorption while transmitting the filter made of composite structure.
  • improvements such as anti-reflection coating at the filter surface can be suggested to try out.
  • This method cannot solve the surface reflection problem com- pletely, and leads to various problems such as alteration of colors and cost increasing factor.
  • large-sized lens-type filter should be manufactured when intending to conveniently enlarge the picture image, this method is c- onsiderably difficult.
  • an object of the present invention is to solve the aforesaid problems of the prior art, i.e., to interecpt the harmful waves reflecting toward the hum ⁇ an body at the most, to remove the various deterioration factors of the picture quality such as surface reflection phenomenon occured at the filter and monitor surfaces and color alteration in the picture while using the filter, and is to conveniently enlarge or reduce the picture of the monitor.
  • the pictu- re of the monitor is reflected once or more so that the harmless virtual image can be seen.
  • o- ne of the following two methods is desirable.
  • One method is that the monitor manufactured to provide the mirror s- ymmetrical picture by way of shifting the electric poten ⁇ tial applied to vertical or horizontal deflection coil of said monitor is reflected uneven times upon one or uneven number of mirrors.
  • Another method is that the normal mo ⁇ nitor providing the normal picture is reflected even tim ⁇ es upon two or even number of mirror.
  • front mirror is desirable.
  • the mirror composed of dielectric or semiconductor having the refractive index of 1.1-3.5 in reflection surface and base material is de ⁇ sirably used to intercept reflection of harmful waves (e- specially electromagnetic waves) during the course of r- eflection.
  • the reflectance for vis ⁇ ible lights at the angle of reflection 0 is 3-95%, and more desirable that the reflectance is 4-80%. It also can be made for the capability that the virtual image on the mirror can be seen selectively in its actual size, enlarg- ed size or reduced size by comprising one or more mirrors among plane mirrors, convex mirrors (reducing mirror) or concave mirrors (enlarging mirr) so that users can conve ⁇ niently use it for converting the size of the picture im ⁇ age. As shown in FIG.
  • th ⁇ at the angle made by two line which are the straight line (a normal line) perpendicularly erected on the central p- oint of virtual image surface of the monitor picture seen by users through the mirror and the straight line connec ⁇ ting from user's eye to said central point is 0-80 and more desirably 5-60 .
  • Construction mentioned above can solve the problems unsettled by the prior art.
  • the mirr ⁇ ors to be used for this purpose can be manufactured as o- ne part of other goods such as ornament, desk, key-board and aquarium, or in combination with such goods.
  • As for construction of the mirror there are a few kinds of mirror. One is made by coating one or more lay ⁇ er on the base material with transparent or opaque diele ⁇
  • mirror base plate having refract- ive index of 1.1-3.5 as a reflection surface.
  • front mirror of which base plate is made of glass having refractive index of 1.3-2.0 It is notable that the mirror having low reflectance and absorptance cannot provide clear virtual image due to the visible light and harmful waves which can be transmitted from back side to front side direction, and due to the 1- ights returning to the front side direction by reflection at rear side surface of mirror. And such mirror cannot achieve its original purposes sufficiently.
  • the problem can be solved by adding at least one betw ⁇ een light absorbent and harmful waves absorbent to the b- ase material of the mirror, to become opaque, or by incl ⁇ uding closely one or more of them on the rear surface of base plate of the mirror if the aforesaid operation is c- onsidered to be difficult.
  • reflection at rear surface is satisfa ⁇ ctorily removed so far as the refractive index of said a- bsorbent is very similar to that of the base plate of the mirror. It is because that when the refractive index of rear surface of the base plate is equal to that of the a- bsorbent, light is not reflected at boundary surface, but is continuously advanced and absorbed by the absorbent. This phenomenon can be compared to the phenomenon which reflectance at glass surface appears higher than the ref ⁇ lectance at the surface of glass immersed in water. Most of dielectric base plates indicate the phenomenon of pol ⁇ arization by reflection and the different characteristic of reflection according to the angle of reflection as sh ⁇ own in FIG. 28.
  • a monitor system usi ⁇ ng the mirror having the construction mentioned above if at least one apparatus among light shields intercepting unnecessary light which can be a factor of deterioration of picture quality by incidence to the monitor panel, pr ⁇ otection shields intercepting direct exposure of the hum ⁇ an body to the monitor, and apparatuses controlling the angle and position of the monitor or the mirrors by the wire control method, wireless remote control method or - tract control method, is used in combination with the sy ⁇ stem, very clear and harmless virtual image of the monit ⁇ or picture will be obtained.
  • the method of mounting enlargement lens or reduction lens at front of the monitor is possible for converting the picture size.
  • FIG. 1 is a cross sectional view of a front mirror including coated layers.
  • FIG. 2 is a cross sectional view of a front mirror including coated layers and absorbent on the rear side s- urface.
  • FIG. 3 is a cross sectional view of the mirror inc- luding the absorbent at rear side surface of base plate.
  • FIG. 4 is a cross sectional view of the mirror hav ⁇ ing a mixture layer of base material and the absorbent.
  • FIG. 5 is a cross sectional view of the mirror man ⁇ ufactured by mixing the absorbent with the base material.
  • FIG. 6 is a cross sectional view of the mirror inc ⁇ luding the absorbent of electromagnetic waves at its rear side surfaces after making an opaque base plate.
  • FIG. 7 is a cross sectional view of the mirror inc ⁇ luding the absorbent of electromagnetic waves on the rear surface of the opaque base plate.
  • FIG. 8 is a cross sectional view of the mirror inc ⁇ luding necessary material such as absorbent filled in an air tight space formed at rear surface of the base plate.
  • FIG. 9 is a cross sectional view of the mirror inc ⁇ luding a light absorbent layer and electromagnetic wave absorbent layer formed separately.
  • FIG. 10 is a cross sectional view of an example of mirror device.
  • FIG. 11 is a cross sectional view of the mirror de ⁇ vice manufactured such that both sides of front and rear surfaces can be used.
  • FIG. 12 is a view of an example for an onetime ref- lection-type monitor system.
  • FIG. 13 is a view of an example for a two times re ⁇ flection-type monitor system.
  • FIG. 14 is a view of the monitor system including a transmission filter.
  • FIG. 15 is a view of the monitor system which the mirror is mounted on the upper surface of a desk.
  • FIG. 16 is a view of the monitor system comprising the monitor inside of the desk.
  • FIG. 17 is a view of the monitor system mounted in a table.
  • FIG. 18 is a view of the monitor system mounted on the wall surface or the ceiling.
  • FIG. 19 is a view of the monitor system including three kinds of the mirrors there to.
  • FIG. 20 is a view of the monitor system constructed by using the mirror engaged with the keyboard.
  • FIG. 21 is a view of the monitor system including light sources.
  • FIG. 22 and FIG. 23 are views of the monitor syst ⁇ em using a mirror device including protection shields.
  • FIG. 24 is a view of the monitor system using the mirror device, manufactured such that it also serves as a fish basin.
  • FIG. 25 is a diagram of reflectance according to e- ach wave length at one surface of glass and anti-reflect ⁇ ion coated glass with magnesium fluoride.
  • FIG. 26 is a diagram of reflectance according to t- he optical thickmess of coated layer formed on a base pl ⁇ ate.
  • FIG. 27 is a diagram of reflectance of multiple co ⁇ ated layers having a specific structure.
  • FIG. 28 is a diagram illustrating polarization by reflection and reflectance of the perpendicular and the parallel waves to the plane of incidence at one surface of glass for each angle of incidence.
  • mirrors will be the most important element. What is commonly used in a daily life as a mirror is not a front mirror. This has structure which after reflecting at least 4% of the inci ⁇ dent light according to the angle of reflection which is boundary surface reflection occured at front side surface some portion of the remaining light is reflected at refl ⁇ ection layer coated on rear surface of glass. According ⁇ ly, a virtual image being reflected may appear overlapped according to the angle of reflection. To obtain clear v- irtual image having no overlapping, use of the front mir ⁇ ror is desirable and to intercept reflection of harmful electromagnetic waves it is more desirable to construct all of base material and reflection layer of the mirror with dielectric or semiconductor.
  • the mirrors, elements of the monitor system, for removing harmful electromagne ⁇ tic waves and unnecessary lights by using selective refl ⁇ ection characteristic of the dielectric or the semicondu ⁇ ctor, and for reflecting adequate quantity of harmless 1- ight only, will be explained in conjunction with the dra ⁇ wings.
  • FIG. 1 is a cross sectional view of the mirror having s- ingle or multiple layers of dielectric reflection layer 1 such that front surface of a dielectric plate 3 has a de- sired reflectance and optical characteristics.
  • a coating process adjusting reflectance by using dielectric as sho ⁇ wn on FIG. 26 and FIG. 27, is a well known technology. In this process, there are a method using a compound such as oxide, fluoride and sulphide which absorptance is very low and transparent as material of reflectance layer, and another method using a compound which absorptance is rel ⁇ atively high.
  • FIG. 2 is a sectional view of the mirror comprising die ⁇ lectric reflection layer 1 having low reflectance, a lig ⁇ ht absorbent layer 5 intercepting reflection at rear sur ⁇ face and transmitted light from back side of the mirror, and an electromagnetic wave absorbent layer 7.
  • FIG. 26 shows variation of reflectance of each single layer coated with one of t- hree different dielectrics having different refractive i- ndex on the base plate 3 of glass, according to increasi- ng the optical thickness of said layer.
  • FIG. 27 shows reflectance per each wave length at the surface coated w- ith multiple layers having a specific structure.
  • This c- an be realized by coating the alternative layers with the material having low refractive index and the material ha- ving high refractive index respectively with a specific optical thickness. This coating process is a well known technology, which is used in the general optical field. As can be seen from FIG.
  • FIG. 3 and FIG. 9 show the structure in which one surface of transparent b- ase plate 3 is used for the reflection layer as it is.
  • the lights absorptive layer 5 and ele ⁇ ctromagnetic waves absorptive layer 7 should be formed in double, or a layer 9 formed by mixing each other should be placed at back side of the base plate.
  • FIG. 4 and FIG. 5 are cross sectional views of the mirror for a monitor system comprising the mixture of the base material with the light absorbent and electromagnet ⁇ ic wave absorbent so that sufficient absorption of lights and harmful electromagnetic waves can be achieved in the reflection layers 11,13.
  • FIG. 6 is a sectional view of the mirror which ref ⁇ lection of light and sufficient absorption is achieved f- rom the reflection layer 15, and layer 7 is an electroma- gnetic wave absorbent layer.
  • layer 7 is an electroma- gnetic wave absorbent layer.
  • the materi ⁇ al mentioned above there are opaque colored glass, plas ⁇ tic plate, ceramic plate, etc., which are manufactured by adding the light absorbent, and the black colored one is preferable as it heightens contrast and provides the virt- ual image having original color of the monitor picture.
  • FIG. 7 shows a cross sectional view of the mirror using surface of opaque dielectric or semiconductor for the reflection surface and layer 7 is the harmful electr- o agnetic waves absorbent layer.
  • FIG. 8 shows a sectional view of a thin airtight b- ox shape mirror made by using one surface of the base pl ⁇ ate as a reflection surface, and the lights absorbent and absorbent of harmful electromagnetic waves 9 are filled in it.
  • a desirable mirror device can be constructed by attaching harmless mirrors mentioned above on a protecti ⁇ on reinforcement plate 23 in such a manner that substanc ⁇ es 21 for adhesion, fixing and bumping are applied betwe- en the protection reinforcement layer and mirror, and by adding joints 19 used as an axis when adjusting its angle.
  • FIG. 10 is an example of sectional structure of si ⁇ mple mirror device including the mirror for the monitor system.
  • the layer 21 is an layer for adhesive and bumpi ⁇ ng elements adhering a mirror 17 to a protection reinfor ⁇ cement layer 23.
  • the layer 25 is a lubricant plate for moving smoothly while adjusting the location when using it on the desk.
  • Device 19 is a joint.
  • FIG. 11 is the structure of a mirror device made to utilize the back side of the mirror device.
  • the layer 27 is a mirror and back side 29 can be used for different m- irror having different reflectance and enlargement ratio, or can be utilized as a picture frame or a notice board.
  • the part 33 is a protection reinforcement layer and the layer 31 is a bumping and adhesive layer.
  • FIG. 12 shows an example of the monitor system com ⁇ prising a monitor 35 and one mirror device 17 including a joint 19, and the arrangement 41 is the position of eyes.
  • This mirror device can be used by mounting on the monitor or constructing independently. In case of using one or uneven number of mirrors, the electric potential applied to deflection coil of monitor should be shifted each oth ⁇ er so that the mirror symmetrical picture can be obtaine- d. By combining the monitor having such function with u- neven number of mirror device, an independent product can be made.
  • FIG. 13 shows an example of the monitor system usi ⁇ ng two mirrors, including a monitor 35, and the mirrors 37,39. As shown on the drawing, the monitor system incl- uding two or even number of mirrors can be used in combi ⁇ nation with the normal monitor.
  • FIG. 14 shows an example being used in combination with a transmission filter.
  • a light shield 49 is placed to intercept the incident light 47 which can generate the glare phenomenon.
  • the light shield intercepts the incid ⁇ ent light by enabling to adjust the position and the ang ⁇ le.
  • the glare light 53 incident from external light sou ⁇ rce through a mirror 17 is reduced by adjusting the posi- tion and angle of the mirror, and also by adjusting the position and angle of an transmission filter 51 and a mo ⁇ nitor 35, the light reflected at surface of the filter a- nd the monitor 43,45 is simply removed.
  • the intensity of the glare light 53 can be reduced and the contrast will be improve- d.
  • FIG. 15 illustrates the monitor system with a glass plate having a function of mirror used by laying on a de- sk.
  • "55” herein represents the desk glass and "57” repr ⁇ esents an absorbent layer for the purposes mentioned abo ⁇ ve.
  • "59” herein represents a protection reinforcement 1- ayer.
  • FIG. 16 shows an example of the monitor system bei ⁇ ng used in combination with desk or desk glass, which po ⁇ sition and angle of the mirror device can be adjusted for convenience.
  • "17” herein represents position of the mir ⁇ ror during use, "61” a mirror under the folded state, "63” a desk glass, "49” a light shield, and "35” a monitor mo ⁇ unted under the desk.
  • FIG. 17 and FIG. 18 show an example of the monitor system mounted on the wall surface or the table, in which a back side of the mirror device 65 is used as decorative picture or picture frame, or another mirror having diffe ⁇ rent enlargement or reflectance can be included, and pos ⁇ ition and angle of a mirror 67 and the monitor 35 can be adjusted as necessary.
  • FIG. 19 shows an example of the monitor system ena ⁇ bling to selectively use one surface of three mirror sur ⁇ faces when intending to watch the picture of the monitor 35 enlarged or reduced by using one of three mirrors whi- ch enlargement ratio and reflectance are different from one another on the triangle pole-type.
  • a convex or concave mirror used herein can generate the mo ⁇ nitor picture of a right-angled tetragon to be its virtu ⁇ al image of a trapezoid or an inverse trapezoid. In th ⁇ is case, in order to correct the virtual image into the original picture of a right angled tetragon, the mirrors having multiple focus is desirable. It also can be manu ⁇ factured to be multiple plane pole-type having more than triangularity.
  • FIG. 20 shows the monitor system constructed by ma ⁇ nufacturing a keyboard 75 enabling to mount mirrors 17 on it or by mounting mirrors on the keyboard.
  • "77" herein represents a leg support of a monitor table.
  • the monitor, the keyboard and mirrors can be assembled together such that they seem to be one product.
  • the monitor system can be manufactured in combination with various other goods or in its parts.
  • FIG. 21 shows an example of the monitor system inc ⁇ luding a light source 79 being used when an objective su- bstance for watching is not a luminous body.
  • a reflection layer of the mirror 37,39 can be m- ade of metal or conductor as its main objects are not in ⁇ terception of the electromagnetic waves but interception of ultraviolet rays.
  • FIG. 22 and FIG. 23 show examples of the monitor system conprising a monitor being disposed in a normal s- tate, respectively.
  • user's human fo ⁇ ody is exposed toward harmful waves 81 and the user feels dispersed due to indirect effects of strong light from t- he monitor 35 and its surroundings.
  • the protection shield is made of the material which absorptance of light and harm ⁇ ful waves is superior.
  • the mirror 17 should be manufactured in an adequate size and the protection shield should be mounted at the surroundi- ngs as shown on the drawing.
  • FIG. 24 shows an example of the monitor system whi ⁇ ch one surface of a fish basin is.used as a mirror of its element.
  • the reflection at rear s- urface of the mirror plate transparent is almost trifling as refractive index of the mirror plate 17 of transparent dielectric such as glass is not quite different from that of water 91 filled in the fish basin.
  • the monitor system can serve to the fish basin when pu- lling up a light absorptive sheet 89, and serve to the m- irror for the monitor system when pulling down it. It is well known that water is the excellent absorbent of elec ⁇ tromagnetic waves.
  • a general - irror can be used as the mirror for the monitor system.
  • the monitor system including the general - irror can serve to achieve the partial effects of the pr ⁇ esent invention.
  • 25 is a diagram showing the reflectance at the surface of anti-reflection coated glass with magnesium f- luoride, and reflectance at front surface of the glass w- hich can be used as the reflection layer.
  • the numbers on the transverse line are the wave length of lights with the unit of nanometer, and the numbers on the ordinate are the reflectance.
  • reflectan- ce increases very gradually as far as the angle of incid ⁇ ence becomes great and reflectance becomes great rapidly to be 100% when the angle of incidence approaches to 90°. Accordingly, as the angle of incidence can be adjusted if the position and the angle of the monitor, the mirror and eyes vary, reflectance also can be adjusted. This is an ⁇ other benefit of reflection-type monitor system which co ⁇ uld not be anticipated from the transmission filter. Th- is phenomenon can be anticipated even when using other k- inds of dielectric, but subject to characteristic and re ⁇ fractive index of substances. In case that glass surface is used as a reflection layer as shown on FIG. 3 and FI- G. 9, reflectance indicates about 4-10% in the range of most of incidence angle.
  • FIG. 26 shows variation of reflectance of each sin ⁇ gle layer coated with one of three different dielectrics having different refractive index on the base plate 3 of glass, according to increasing the optical thickness of said layer.
  • the transverse is the opti ⁇ cal thickness of coated layer with the unit of nanometer, and the wave length of the light used for measurement is 600 nm.
  • the ordinate is the reflectance, "105" herein is that of refractive index 1.9, "107” is that of refractive index 1.7, and “109” herein is the reflection characteri ⁇ stic of that coated with the substance having refractive index of 1.5.
  • FIG. 27 shows an example of reflectance characteri ⁇ stic per each wave length of visible light at the reflec ⁇ tion surface of multi layers coated having a specific st ⁇ ructure. With the variation of refractive index, optical
  • FIG. 28 shows variation of reflectance and polariz ⁇ ation of light according to the angle of incidence at one surface of the glass plate for the perpendicular waves a- nd parallel waves to the plane of incidence. It can be
  • variable reflectance and the phe ⁇ nomenon of polarization by reflection of dielectric being used as the reflection surface can be sufficiently utili ⁇ zed.
  • Ill herein is the reflectance of lights oscillat-
  • material property which was explained as dielectric may include the substance or compound havi ⁇ ng the property similar to optical characteristic of die- lectric and its benefit.
  • the construction and method of accomplishi- ng objects of the present invention are quite variable, including one or more among a monitor adjusting table Sl ⁇ aving the function of adjusting position and angle of the monitor, the light shields, the protection shields and t- he transmission filter, by varying some structure, by om- itting one of the structure and functions or by adding o- ther functions.
  • the present invent- ion will provide the great effects of process reduction, unit cost reduction by productivity improvement, enlarge ⁇ ment of picture image, reduction of picture image, attit ⁇ ude correction while using the monitor by adjustment of mirror and monitor position, and saving of space while u- sing the monitor in the field of monitors manufacturing and its application.

Abstract

The present invention relates to a system for providing clear picture quality and safe environment while using the monitor (35), and more particularly to a monitor system for removing various factors deteriorating the picture quality such as harmful electromagnetic waves and unnecessary light emitted from the monitor, spreading phenomenon of colors, the phenomenon of glare occurring at the panel of monitors, the alteration of color of monitor picture while using the filter and reflection at filter surface. To accomplish objects of the present invention, the present invention comprises one method selected between the method of combining the monitor (35) providing mirror symmetrical picture with mirrors (17) having uneven number, at least one, or the method of combining the normal monitor with mirrors having even number, at least two. In this construction, at least one of the said mirrors should be the front mirror (17) made of dielectric having proper reflectance and the angle of reflection should be adequate to obtain the desired reflectance and the effect of polarization of light. It also provides the clear and safe virtual image of picture of the monitor without harmful waves and unnecessary light, and supplementary function to enlarge or reduce the picture of the virtual image by selectively including at least one among plane mirrors, convex mirrors or concave mirrors. This monitor system provides very clear picture and safer environment in case of watching televisions and using computer monitors.

Description

A MONITOR SYSTEM TECHNICAL FIELD The present invention relates to the system for pro¬ viding clear picture quality and safe environment while using a monitor, and more particularly to a monitor syst¬ em for removing various factors of deteriorating the pic¬ ture quality such as harmful electromagnetic waves and u- nnecessary lights emitted from the monitor, spreading ph¬ enomenon of colors and the phenomenon of reflection at b- oundary surface occurring at the panel of the monitor, a- nd alteration of color while using the filter and reflec¬ tion at filter surface.
BACKGROUND ART The conventional system used to break the electroma- gnetic waves of the monitor is the method using a transm¬ ission filter, which selectively transmits harmless ligh¬ ts only and reflects the harmful lights and electromagne¬ tic waves by installing it at the front of the monitor p- icture. In this method, interception of harmful waves is effective on the assumption that harmful waves are emitt¬ ed from the reverse side of the transmission filter, i.e., from the monitor panel only. However, harmful waves inc¬ ident upon the front side of the filter are reflected to¬ ward the human body again, and thus there still remains the possible damage due to the harmful waves. Further, users become confused because of the phenomenon of overl¬ apping picture image of the monitor upon the reflecting lights due to reflection at both side surfaces of the fi- lter itself. Also, the aforesaid system has the problems which colors of the monitor picture alter and quality of the picture deteriorates due to the composite optical ph¬ enomena such as reflection, refraction, scattering or ab- sorption while transmitting the filter made of composite structure. To solve the problem of the surface reflecti¬ on, improvements such as anti-reflection coating at the filter surface can be suggested to try out. This method, however, cannot solve the surface reflection problem com- pletely, and leads to various problems such as alteration of colors and cost increasing factor. And as large-sized lens-type filter should be manufactured when intending to conveniently enlarge the picture image, this method is c- onsiderably difficult. DISCLOSURE OF INVENTION
Accordingly, an object of the present invention is to solve the aforesaid problems of the prior art, i.e., to interecpt the harmful waves reflecting toward the hum¬ an body at the most, to remove the various deterioration factors of the picture quality such as surface reflection phenomenon occured at the filter and monitor surfaces and color alteration in the picture while using the filter, and is to conveniently enlarge or reduce the picture of the monitor. To achieve the aforesaid object, the pictu- re of the monitor is reflected once or more so that the harmless virtual image can be seen. To technically solve the phenomenon which the virtual image is shifted to mir¬ ror symmetrical picture other than the normal picture, o- ne of the following two methods is desirable. One method is that the monitor manufactured to provide the mirror s- ymmetrical picture by way of shifting the electric poten¬ tial applied to vertical or horizontal deflection coil of said monitor is reflected uneven times upon one or uneven number of mirrors. Another method is that the normal mo¬ nitor providing the normal picture is reflected even tim¬ es upon two or even number of mirror. As the mirror, for the purpose of clearing the reflected virtual picture im- age, front mirror is desirable. The mirror composed of dielectric or semiconductor having the refractive index of 1.1-3.5 in reflection surface and base material is de¬ sirably used to intercept reflection of harmful waves (e- specially electromagnetic waves) during the course of r- eflection. It is desirable that its reflectance for vis¬ ible lights at the angle of reflection 0 is 3-95%, and more desirable that the reflectance is 4-80%. It also can be made for the capability that the virtual image on the mirror can be seen selectively in its actual size, enlarg- ed size or reduced size by comprising one or more mirrors among plane mirrors, convex mirrors (reducing mirror) or concave mirrors (enlarging mirr) so that users can conve¬ niently use it for converting the size of the picture im¬ age. As shown in FIG. 28, to utilize polarization by r- eflection subject to the angle of reflection which is one of the characteristics of dielectric surface reflection, and to overcome the glare phenomenon, it is desirable th¬ at the angle made by two line which are the straight line (a normal line) perpendicularly erected on the central p- oint of virtual image surface of the monitor picture seen by users through the mirror and the straight line connec¬ ting from user's eye to said central point is 0-80 and more desirably 5-60 . Construction mentioned above can solve the problems unsettled by the prior art. The mirr¬ ors to be used for this purpose can be manufactured as o- ne part of other goods such as ornament, desk, key-board and aquarium, or in combination with such goods. As for construction of the mirror, there are a few kinds of mirror. One is made by coating one or more lay¬ er on the base material with transparent or opaque diele¬
ctric or semiconductor. Another is the front mirror us¬ ing only one surface of mirror base plate having refract- ive index of 1.1-3.5 as a reflection surface. As a model of such mirrors there is the front mirror of which base plate is made of glass having refractive index of 1.3-2.0. It is notable that the mirror having low reflectance and absorptance cannot provide clear virtual image due to the visible light and harmful waves which can be transmitted from back side to front side direction, and due to the 1- ights returning to the front side direction by reflection at rear side surface of mirror. And such mirror cannot achieve its original purposes sufficiently. In this cas- e, the problem can be solved by adding at least one betw¬ een light absorbent and harmful waves absorbent to the b- ase material of the mirror, to become opaque, or by incl¬ uding closely one or more of them on the rear surface of base plate of the mirror if the aforesaid operation is c- onsidered to be difficult.
In this case, reflection at rear surface is satisfa¬ ctorily removed so far as the refractive index of said a- bsorbent is very similar to that of the base plate of the mirror. It is because that when the refractive index of rear surface of the base plate is equal to that of the a- bsorbent, light is not reflected at boundary surface, but is continuously advanced and absorbed by the absorbent. This phenomenon can be compared to the phenomenon which reflectance at glass surface appears higher than the ref¬ lectance at the surface of glass immersed in water. Most of dielectric base plates indicate the phenomenon of pol¬ arization by reflection and the different characteristic of reflection according to the angle of reflection as sh¬ own in FIG. 28. When constructing a monitor system usi¬ ng the mirror having the construction mentioned above, if at least one apparatus among light shields intercepting unnecessary light which can be a factor of deterioration of picture quality by incidence to the monitor panel, pr¬ otection shields intercepting direct exposure of the hum¬ an body to the monitor, and apparatuses controlling the angle and position of the monitor or the mirrors by the wire control method, wireless remote control method or - anual control method, is used in combination with the sy¬ stem, very clear and harmless virtual image of the monit¬ or picture will be obtained. In addition to the method using the mirror^ the method of mounting enlargement lens or reduction lens at front of the monitor is possible for converting the picture size. In case of that the mirror comprising metal or conductor is used in monitor system, there is the possibility of reflection of harmful waves (especially electromagnetic waves). Accordingly, it is desirable that harmful waves should be intercepted by the transmission filter mounted between the monitor and users. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a cross sectional view of a front mirror including coated layers.
FIG. 2 is a cross sectional view of a front mirror including coated layers and absorbent on the rear side s- urface.
FIG. 3 is a cross sectional view of the mirror inc- luding the absorbent at rear side surface of base plate. FIG. 4 is a cross sectional view of the mirror hav¬ ing a mixture layer of base material and the absorbent.
FIG. 5 is a cross sectional view of the mirror man¬ ufactured by mixing the absorbent with the base material. FIG. 6 is a cross sectional view of the mirror inc¬ luding the absorbent of electromagnetic waves at its rear side surfaces after making an opaque base plate.
FIG. 7 is a cross sectional view of the mirror inc¬ luding the absorbent of electromagnetic waves on the rear surface of the opaque base plate.
FIG. 8 is a cross sectional view of the mirror inc¬ luding necessary material such as absorbent filled in an air tight space formed at rear surface of the base plate. FIG. 9 is a cross sectional view of the mirror inc¬ luding a light absorbent layer and electromagnetic wave absorbent layer formed separately.
FIG. 10 is a cross sectional view of an example of mirror device.
FIG. 11 is a cross sectional view of the mirror de¬ vice manufactured such that both sides of front and rear surfaces can be used.
FIG. 12 is a view of an example for an onetime ref- lection-type monitor system.
FIG. 13 is a view of an example for a two times re¬ flection-type monitor system.
FIG. 14 is a view of the monitor system including a transmission filter. FIG. 15 is a view of the monitor system which the mirror is mounted on the upper surface of a desk.
FIG. 16 is a view of the monitor system comprising the monitor inside of the desk.
FIG. 17 is a view of the monitor system mounted in a table.
FIG. 18 is a view of the monitor system mounted on the wall surface or the ceiling.
FIG. 19 is a view of the monitor system including three kinds of the mirrors there to. FIG. 20 is a view of the monitor system constructed by using the mirror engaged with the keyboard.
FIG. 21 is a view of the monitor system including light sources. FIG. 22 and FIG. 23 are views of the monitor syst¬ em using a mirror device including protection shields.
FIG. 24 is a view of the monitor system using the mirror device, manufactured such that it also serves as a fish basin.
FIG. 25 is a diagram of reflectance according to e- ach wave length at one surface of glass and anti-reflect¬ ion coated glass with magnesium fluoride.
FIG. 26 is a diagram of reflectance according to t- he optical thickmess of coated layer formed on a base pl¬ ate.
FIG. 27 is a diagram of reflectance of multiple co¬ ated layers having a specific structure.
FIG. 28 is a diagram illustrating polarization by reflection and reflectance of the perpendicular and the parallel waves to the plane of incidence at one surface of glass for each angle of incidence.
BEST MODE FOR CARRYING OUT THE INVENTION To carry out the present invention, mirrors will be the most important element. What is commonly used in a daily life as a mirror is not a front mirror. This has structure which after reflecting at least 4% of the inci¬ dent light according to the angle of reflection which is boundary surface reflection occured at front side surface some portion of the remaining light is reflected at refl¬ ection layer coated on rear surface of glass. According¬ ly, a virtual image being reflected may appear overlapped according to the angle of reflection. To obtain clear v- irtual image having no overlapping, use of the front mir¬ ror is desirable and to intercept reflection of harmful electromagnetic waves it is more desirable to construct all of base material and reflection layer of the mirror with dielectric or semiconductor. The mirrors, elements of the monitor system, for removing harmful electromagne¬ tic waves and unnecessary lights by using selective refl¬ ection characteristic of the dielectric or the semicondu¬ ctor, and for reflecting adequate quantity of harmless 1- ight only, will be explained in conjunction with the dra¬ wings.
FIG. 1 is a cross sectional view of the mirror having s- ingle or multiple layers of dielectric reflection layer 1 such that front surface of a dielectric plate 3 has a de- sired reflectance and optical characteristics. A coating process adjusting reflectance by using dielectric as sho¬ wn on FIG. 26 and FIG. 27, is a well known technology. In this process, there are a method using a compound such as oxide, fluoride and sulphide which absorptance is very low and transparent as material of reflectance layer, and another method using a compound which absorptance is rel¬ atively high. The drawing shows .the mirror structure wh¬ ich can be used in case of trifling effects of light cau¬ sed by reflection at rear surface or transmitted light f- rom rear surface of a base plate 3 as reflectance or abs¬ orptance of a reflection layer 1 is very high. Inclusion of harmful electromagnetic wave absorbent (not shown on drawings) is more desirable. FIG. 2 is a sectional view of the mirror comprising die¬ lectric reflection layer 1 having low reflectance, a lig¬ ht absorbent layer 5 intercepting reflection at rear sur¬ face and transmitted light from back side of the mirror, and an electromagnetic wave absorbent layer 7. In the e- vent that reflectance and absorptance of the reflection layer 1 are low, virtual image of a substance is overlap¬ ped and has a bad contrast because of reflection at rear surface of a base plate 3 and transmitted light from back side of the mirror. In order to solve this problem, the structure having the layer 5 of lights absorbent and the electromagnetic waves absorbent layer 7 is desirable for intercepting unnecessary lights and electromagnetic wave- s. In this structure, dielectric or material which refl- ectance of electromagnetic waves is the minimum should be used as the lights absorbent 5. FIG. 26 shows variation of reflectance of each single layer coated with one of t- hree different dielectrics having different refractive i- ndex on the base plate 3 of glass, according to increasi- ng the optical thickness of said layer. FIG. 27 shows reflectance per each wave length at the surface coated w- ith multiple layers having a specific structure. This c- an be realized by coating the alternative layers with the material having low refractive index and the material ha- ving high refractive index respectively with a specific optical thickness. This coating process is a well known technology, which is used in the general optical field. As can be seen from FIG. 28, even though transparent di- electric such as glass reflects a definite quantity of i- ncident lights at the surface and reflectance is subject to angle of incidence. The mirror shown on FIG. 3 and FIG. 9 is using this characteristic. FIG. 3 and FIG. 9 show the structure in which one surface of transparent b- ase plate 3 is used for the reflection layer as it is. In this structure, the lights absorptive layer 5 and ele¬ ctromagnetic waves absorptive layer 7 should be formed in double, or a layer 9 formed by mixing each other should be placed at back side of the base plate.
FIG. 4 and FIG. 5 are cross sectional views of the mirror for a monitor system comprising the mixture of the base material with the light absorbent and electromagnet¬ ic wave absorbent so that sufficient absorption of lights and harmful electromagnetic waves can be achieved in the reflection layers 11,13.
FIG. 6 is a sectional view of the mirror which ref¬ lection of light and sufficient absorption is achieved f- rom the reflection layer 15, and layer 7 is an electroma- gnetic wave absorbent layer. For examples of the materi¬ al mentioned above, there are opaque colored glass, plas¬ tic plate, ceramic plate, etc., which are manufactured by adding the light absorbent, and the black colored one is preferable as it heightens contrast and provides the virt- ual image having original color of the monitor picture. FIG. 7 shows a cross sectional view of the mirror using surface of opaque dielectric or semiconductor for the reflection surface and layer 7 is the harmful electr- o agnetic waves absorbent layer.
FIG. 8 shows a sectional view of a thin airtight b- ox shape mirror made by using one surface of the base pl¬ ate as a reflection surface, and the lights absorbent and absorbent of harmful electromagnetic waves 9 are filled in it. A desirable mirror device can be constructed by attaching harmless mirrors mentioned above on a protecti¬ on reinforcement plate 23 in such a manner that substanc¬ es 21 for adhesion, fixing and bumping are applied betwe- en the protection reinforcement layer and mirror, and by adding joints 19 used as an axis when adjusting its angle.
Beside the structure of the mirror specifically men¬ tioned above, the mirrors and the monitor system which c- an be applied to accomplish objects of the present inven- tion have many other different types of structure by var¬ ying some substances for use, construction method, appli¬ cation sequence, etc., by omitting its some functions, or by adding some functions for other purposes. But in this specification, some examples only were illustrated. FIG. 10 is an example of sectional structure of si¬ mple mirror device including the mirror for the monitor system. The layer 21 is an layer for adhesive and bumpi¬ ng elements adhering a mirror 17 to a protection reinfor¬ cement layer 23. The layer 25 is a lubricant plate for moving smoothly while adjusting the location when using it on the desk. Device 19 is a joint.
FIG. 11 is the structure of a mirror device made to utilize the back side of the mirror device. The layer 27 is a mirror and back side 29 can be used for different m- irror having different reflectance and enlargement ratio, or can be utilized as a picture frame or a notice board. The part 33 is a protection reinforcement layer and the layer 31 is a bumping and adhesive layer.
FIG. 12 shows an example of the monitor system com¬ prising a monitor 35 and one mirror device 17 including a joint 19, and the simbol 41 is the position of eyes. This mirror device can be used by mounting on the monitor or constructing independently. In case of using one or uneven number of mirrors, the electric potential applied to deflection coil of monitor should be shifted each oth¬ er so that the mirror symmetrical picture can be obtaine- d. By combining the monitor having such function with u- neven number of mirror device, an independent product can be made.
FIG. 13 shows an example of the monitor system usi¬ ng two mirrors, including a monitor 35, and the mirrors 37,39. As shown on the drawing, the monitor system incl- uding two or even number of mirrors can be used in combi¬ nation with the normal monitor.
FIG. 14 shows an example being used in combination with a transmission filter. A light shield 49 is placed to intercept the incident light 47 which can generate the glare phenomenon. The light shield intercepts the incid¬ ent light by enabling to adjust the position and the ang¬ le. The glare light 53 incident from external light sou¬ rce through a mirror 17 is reduced by adjusting the posi- tion and angle of the mirror, and also by adjusting the position and angle of an transmission filter 51 and a mo¬ nitor 35, the light reflected at surface of the filter a- nd the monitor 43,45 is simply removed. As the mirror h- aving low reflectance is used, the intensity of the glare light 53 can be reduced and the contrast will be improve- d.
FIG. 15 illustrates the monitor system with a glass plate having a function of mirror used by laying on a de- sk. "55" herein represents the desk glass and "57" repr¬ esents an absorbent layer for the purposes mentioned abo¬ ve. "59" herein represents a protection reinforcement 1- ayer. In addition to these methods, one of the aforesaid mirrors can be selected and applied. FIG. 16 shows an example of the monitor system bei¬ ng used in combination with desk or desk glass, which po¬ sition and angle of the mirror device can be adjusted for convenience. "17" herein represents position of the mir¬ ror during use, "61" a mirror under the folded state, "63" a desk glass, "49" a light shield, and "35" a monitor mo¬ unted under the desk.
FIG. 17 and FIG. 18 show an example of the monitor system mounted on the wall surface or the table, in which a back side of the mirror device 65 is used as decorative picture or picture frame, or another mirror having diffe¬ rent enlargement or reflectance can be included, and pos¬ ition and angle of a mirror 67 and the monitor 35 can be adjusted as necessary. FIG. 19 shows an example of the monitor system ena¬ bling to selectively use one surface of three mirror sur¬ faces when intending to watch the picture of the monitor 35 enlarged or reduced by using one of three mirrors whi- ch enlargement ratio and reflectance are different from one another on the triangle pole-type. "69" herein repr¬ esents the mirror for reduction having a convex surface, "71" represents a normal mirror having a plane and "73" is a mirror for enlargement having a concave surface. A convex or concave mirror used herein can generate the mo¬ nitor picture of a right-angled tetragon to be its virtu¬ al image of a trapezoid or an inverse trapezoid. In th¬ is case, in order to correct the virtual image into the original picture of a right angled tetragon, the mirrors having multiple focus is desirable. It also can be manu¬ factured to be multiple plane pole-type having more than triangularity.
FIG. 20 shows the monitor system constructed by ma¬ nufacturing a keyboard 75 enabling to mount mirrors 17 on it or by mounting mirrors on the keyboard. "77" herein represents a leg support of a monitor table. In addition to this structure, the monitor, the keyboard and mirrors can be assembled together such that they seem to be one product. As mentioned above, the monitor system can be manufactured in combination with various other goods or in its parts.
FIG. 21 shows an example of the monitor system inc¬ luding a light source 79 being used when an objective su- bstance for watching is not a luminous body. In this st¬ ructure, a reflection layer of the mirror 37,39 can be m- ade of metal or conductor as its main objects are not in¬ terception of the electromagnetic waves but interception of ultraviolet rays.
FIG. 22 and FIG. 23 show examples of the monitor system conprising a monitor being disposed in a normal s- tate, respectively. In this disposition, user's human fo¬ ody is exposed toward harmful waves 81 and the user feels dispersed due to indirect effects of strong light from t- he monitor 35 and its surroundings. To avoid such, the structure made by mounting the protection shields 85,87 integrally on the monitor system or the structure enabli¬ ng to mount them is necessary. The protection shield is made of the material which absorptance of light and harm¬ ful waves is superior. To avoid dispersed feeling caused by surrounding backgrounds such as external light 81 the mirror 17 should be manufactured in an adequate size and the protection shield should be mounted at the surroundi- ngs as shown on the drawing.
FIG. 24 shows an example of the monitor system whi¬ ch one surface of a fish basin is.used as a mirror of its element. In this construction, the reflection at rear s- urface of the mirror plate transparent is almost trifling as refractive index of the mirror plate 17 of transparent dielectric such as glass is not quite different from that of water 91 filled in the fish basin.
Accordingly, it can serve to the fish basin when pu- lling up a light absorptive sheet 89, and serve to the m- irror for the monitor system when pulling down it. It is well known that water is the excellent absorbent of elec¬ tromagnetic waves. In case of the monitor system being mounted on the wall surface or on the table, a general - irror can be used as the mirror for the monitor system. In this case, the monitor system including the general - irror can serve to achieve the partial effects of the pr¬ esent invention. FIG. 25 is a diagram showing the reflectance at the surface of anti-reflection coated glass with magnesium f- luoride, and reflectance at front surface of the glass w- hich can be used as the reflection layer. In the diagra- m, the numbers on the transverse line are the wave length of lights with the unit of nanometer, and the numbers on the ordinate are the reflectance.
And "103" herein is the reflection characteristics of the glass coated for anti-reflection with magnesium f- luoride. In case of glass as it is, it shows extremely stable and constant reflectance as 101 in the whole range of the visible light. This prove that the virtual image color reflected on the glass surface occur no color alte¬ ring entirely.
As shown on FIG. 28, it can be seen that reflectan- ce increases very gradually as far as the angle of incid¬ ence becomes great and reflectance becomes great rapidly to be 100% when the angle of incidence approaches to 90°. Accordingly, as the angle of incidence can be adjusted if the position and the angle of the monitor, the mirror and eyes vary, reflectance also can be adjusted. This is an¬ other benefit of reflection-type monitor system which co¬ uld not be anticipated from the transmission filter. Th- is phenomenon can be anticipated even when using other k- inds of dielectric, but subject to characteristic and re¬ fractive index of substances. In case that glass surface is used as a reflection layer as shown on FIG. 3 and FI- G. 9, reflectance indicates about 4-10% in the range of most of incidence angle. As using this kind of mirror o- bjective experiment results revealed that the intensity of the reflected lights on said mirror is so sufficient that users cannot recognize difference of a color tone in comparison with that of original picture image, and that contrast is quite improved and lessen strains and stimul¬ ation of eyes.
FIG. 26 shows variation of reflectance of each sin¬ gle layer coated with one of three different dielectrics having different refractive index on the base plate 3 of glass, according to increasing the optical thickness of said layer. In this drawing, the transverse is the opti¬ cal thickness of coated layer with the unit of nanometer, and the wave length of the light used for measurement is 600 nm. The ordinate is the reflectance, "105" herein is that of refractive index 1.9, "107" is that of refractive index 1.7, and "109" herein is the reflection characteri¬ stic of that coated with the substance having refractive index of 1.5. 19 FIG. 27 shows an example of reflectance characteri¬ stic per each wave length of visible light at the reflec¬ tion surface of multi layers coated having a specific st¬ ructure. With the variation of refractive index, optical
5 thickness and number of layer, its reflection characteri¬ stic can be changed. Its thin film deposition process is the method which is generally applied in the optical fie¬ ld. The transverse herein is the wave length of light w- ith the unit of nanometer. The ordinate herein is refle-
10 ctance.
FIG. 28 shows variation of reflectance and polariz¬ ation of light according to the angle of incidence at one surface of the glass plate for the perpendicular waves a- nd parallel waves to the plane of incidence. It can be
15 seen from the drawing that with the proper adjustment of the incidence angle the variable reflectance and the phe¬ nomenon of polarization by reflection of dielectric being used as the reflection surface can be sufficiently utili¬ zed. "Ill" herein is the reflectance of lights oscillat-
20 ing in perpendicular to the incidence plane, and "113" is the refection characteristic of the lights oscillating in parallel with the incidence plane.
What was referred to as the "monitor" in the above should include the goods that emitting harmful electroma-
25 gnetic waves but it was described as the "monitor" for c- onvenience. Also, material property which was explained as dielectric may include the substance or compound havi¬ ng the property similar to optical characteristic of die- lectric and its benefit.
By using the mirror device including several types of mirror as explained above, its position and angle can be adjusted. The construction and method of accomplishi- ng objects of the present invention are quite variable, including one or more among a monitor adjusting table Sl¬ aving the function of adjusting position and angle of the monitor, the light shields, the protection shields and t- he transmission filter, by varying some structure, by om- itting one of the structure and functions or by adding o- ther functions.
INDUSTRIAL APPLICABILITY The greatest problems which monitor manufacturers h- ave to settle are improvement of picture quality, preven- ting the phenomenon of glare at the surfaces of monitor and filter, etc. Every manufacturer makes utmost efforts to settle those by performing the process of anti-reflec¬ tion coating or of anti-reflection treatment for the mon¬ itor surface, performing special treatment process for r- educing reflection of light at the inside of the monitor panel and improvement of the circuit for reducing the fl¬ icker phenomenon of each picture element. Performance of these processes will increase the unit cost considerably. However, if a monitor system according to the prese- nt invention is used, quite better effects can be obtain¬ ed with very cheap expenses and with omission of all the aforesaid process and accessory device.
Accordingly, it is apparent that the present invent- ion will provide the great effects of process reduction, unit cost reduction by productivity improvement, enlarge¬ ment of picture image, reduction of picture image, attit¬ ude correction while using the monitor by adjustment of mirror and monitor position, and saving of space while u- sing the monitor in the field of monitors manufacturing and its application.

Claims

WHAT IS CLAIMED IS ;
1. A monitor system comprising one method selected between a method of seeing after reflecting the lights e- mitted from monitor uneven times with one or uneven nu b- er of mirrors in combination with monitors manufactured to provide a mirror symmetrical picture by way of shifti¬ ng the electric potential applied to vertical or horizan- tal deflection coil of said monitors, and a method of se¬ eing after reflecting the lights emitted from monitor ev- en times with two or even number of mirrors in combinati¬ on with normal monitors, wherein at least one of said mir¬ rors is desirably a front mirror, is more desirably made of dielectric or semiconductor having refractive index of 1.1-3.5 in its reflection surface and base material, inc- luding at least one selected among plane mirrors, convex mirrors and concave mirrors having reflectance desirably 3-95%, more desirably 4-80% at the angle of reflection 0 , and so actual, enlarged or reduced size virtual image of monitor picture can be selectively seen upon user's i- ntention, and the angle made by two lines, which are the straight line (normal) perpendicularly erected on central point of a virtual image surface of monitor picture form¬ ed in said mirror during use and the straight line conne¬ cting from user's eye to said central point, is 0 -80°, desirably 5 -60 , whereby settling at least one problem among emitting harmful waves from monitors, reflection at the surface of monitors and filters such as glare phenom¬ enon, deterioration of picture quality by external envir- onment and other problems.
2. A monitor system, as set forth in claim 1, havi¬ ng said mirrors comprised in integral parts of other goo¬ ds such as decorations, desk, keyboard and aquarium, or being manufactured to be usable in combination with said goods.
3. A monitor system, as set forth in claim 1, incl¬ uding at least one kind of front mirror among mirrors ha¬ ving at least one coated layer of dielectric or semicond- uctor on base plate, mirrors which one surface of dielec¬ tric base plate having refractive index of 1.1-3.5 is us¬ ed as a reflection surface and mirrors which one surface of glass base plate having refractive index of 1.3-3.0 is used as a reflection surface.
4. A monitor system, as set forth in claim 1, which the back side of said mirror or mirror device can compri¬ se other mirrors having other characteristics or goods f- or other purposes.
5. A monitor system, as set forth in claim 1, which a transmission filter is mounted between said monitor and users to remove harmful waves, and so the material of re¬ flection surface and base plate of mirrors can be select¬ ed without any restriction.
6. A monitor system, as set forth in claims 1 to 5, comprising further apparatuses at least one among light shields intercepting unnecessary light incident from ext¬ ernal light source to monitors, protect shields intercep¬ ting the strong waves from monitors, and control apparat- uses controlling the angle and the position of monitor a- nd mirror.
7. The front mirror for preventing reflection of h- armful waves made of dielectric having refractive index of 1.1.-3.5, and having the back side of base plate or t- he base plate itself in which at least one between lights absorbent and harmful electromagnetic waves absorbent of refractive index similar to those have been included.
PCT/KR1993/000074 1992-08-29 1993-08-20 A monitor system WO1994006245A1 (en)

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KR1019920015671A KR960013311B1 (en) 1992-08-29 1992-08-29 Tv filter
KR1992-15671 1992-08-29

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EP0670659A2 (en) * 1994-03-03 1995-09-06 Pioneer Electronic Corporation Magnifying observation apparatus with a concave mirror

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KR20120106953A (en) * 2009-11-18 2012-09-27 쓰리엠 이노베이티브 프로퍼티즈 컴파니 Multi-layer optical films

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GB909748A (en) * 1960-07-25 1962-10-31 Robert Desurmont Apparatus for the observation of luminous images
DE2629165A1 (en) * 1975-07-11 1977-02-03 Robert Deschamps DEVICE FOR VIEWING A TV PICTURE IN A MIRROR
US4717248A (en) * 1985-10-03 1988-01-05 Larussa Joseph Display system
US4880300A (en) * 1988-05-06 1989-11-14 Payner Leonard E Vision saver for computer monitor

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Publication number Priority date Publication date Assignee Title
GB909748A (en) * 1960-07-25 1962-10-31 Robert Desurmont Apparatus for the observation of luminous images
DE2629165A1 (en) * 1975-07-11 1977-02-03 Robert Deschamps DEVICE FOR VIEWING A TV PICTURE IN A MIRROR
US4717248A (en) * 1985-10-03 1988-01-05 Larussa Joseph Display system
US4880300A (en) * 1988-05-06 1989-11-14 Payner Leonard E Vision saver for computer monitor

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Publication number Priority date Publication date Assignee Title
EP0670659A2 (en) * 1994-03-03 1995-09-06 Pioneer Electronic Corporation Magnifying observation apparatus with a concave mirror
EP0670659A3 (en) * 1994-03-03 1996-01-10 Pioneer Electronic Corp Magnifying observation apparatus with a concave mirror.

Also Published As

Publication number Publication date
KR960013311B1 (en) 1996-10-02
KR940004345A (en) 1994-03-15
AU4984793A (en) 1994-03-29

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