WO2002085243A1

WO2002085243A1 - Light radiating device

Info

Publication number: WO2002085243A1
Application number: PCT/JP2002/003802
Authority: WO
Inventors: Yoichiro Miyasaka
Original assignee: Dentalsystems Inc.
Priority date: 2001-04-19
Filing date: 2002-04-17
Publication date: 2002-10-31
Also published as: JP2002314151A

Abstract

A light radiating device capable of curing a photopolymerization material by condensing light from light radiating means without using a light condensing means such as an optical system, comprising a portable hand piece and a base part for placing the hand piece thereon when the hand piece is not used, the hand piece further comprising the plurality of light radiating means with a directivity and a holding means holding the plurality of light radiating means at specified angles so that the light outputted from the plurality of light radiating means can be condensed, the holding means further comprising a body part and a plurality of holes formed in the body part, wherein the body part may be platy or curved one and, when fluid with an excellent heat conductivity is stored in a space surrounded by a substrate, holding means, and members, the heat radiation efficiency of a light source can be increased.

Description

Detail

Technical field

The present invention relates to a light irradiation device for curing a photopolymerizable material. Height

In dental treatment, for example, a photopolymerization material is filled into the cavities formed by carpal treatment, etc., and then irradiated with light to polymerize and harden to fill the cavities, and photopolymerization is applied to damaged teeth. It is practiced to apply a material and irradiate light to polymerize the material, and then perform cutting, polishing, and the like to repair the damaged portion while maintaining aesthetics. As a light source for curing a photopolymerizable material, a light irradiation device including a plurality of light emitting diodes (LED) has been conventionally known. As an example of such an apparatus, Japanese Patent No. 29795222 discloses a configuration in which light from each of a plurality of LEDs is condensed by an individual optical fiber and irradiated from an irradiation head, and There is disclosed a light source device for curing a photo-curable resin having a configuration in which light of a plurality of LEDs is condensed by one convex lens or concave mirror and irradiated from an irradiation head. Since the device emits light having a peak emission wavelength of 430 nm to 480 nm from the irradiation head, it is suitable for curing a photopolymerized resin which is hardened by light in the wavelength range.

In the above-described conventional technology, a plurality of optical fibers, a condenser lens, a concave mirror, and the like are required in order to collect a plurality of lights output from a plurality of light emitting diodes onto a photopolymerizable material. In addition, the light output from the LED itself is cold light, but the LED and the substrate that fixes it have heat due to the LED drive current, and the operation of the LED becomes unstable due to the heat, The durability may be reduced.

Also, although not disclosed in the patents mentioned above, some conventional light-curing resin curing devices have a light guide for guiding light of the light-emitting diode to a predetermined location. is there. However, the light guide is fixed and cannot be changed or replaced, so depending on the position of the tooth to be irradiated, You need to turn around and tilt. For this reason, the dentist with the light irradiation device had to take an unnatural posture.

A power cord is connected to the conventional portable light irradiation device, so that when the light is irradiated, the power cord is obstructed when the irradiation device is placed at an appropriate position for irradiation. And the range of carrying the device was limited by the length of the cord.

Many switches, volumes, display windows, and the like were provided on the main body of the conventional portable light irradiation device for setting, checking, and operating irradiation time and irradiation intensity. Some devices have a single switch with multiple functions. In such a case, the setting must be performed using a combination of switches, which may be troublesome and erroneous. In addition, such switches, volumes, display windows, and the like may be provided on the grip portion. In such a device, when setting, the light irradiation device is held by one hand while the other hand is held. In such a case, a switch or the like must be operated, which is troublesome, and the switch may be erroneously operated by a hand or a finger having the grip portion during light irradiation.

In addition, since the light output from the light irradiation device must have a wavelength range that depends on the wavelength band effective for curing the photopolymerizable substance cured by the light, an available light source is the photopolymerizable substance. It will be specified accordingly. Therefore, if light having a wavelength band different from the wavelength band of the light output from the light irradiation device can be used as the light output from the light source of the light irradiation device, various types of light irradiation devices are required. Various light sources can be used, which is convenient for manufacturing a light irradiation device. DISCLOSURE OF THE INVENTION ''

SUMMARY OF THE INVENTION An object of the present invention is to provide a light irradiation device that solves the above-mentioned various problems of the related art and achieves the conventional needs. The apparatus includes a plurality of directional light irradiating means, and a plurality of light irradiating means arranged so as to collect light output from the plurality of light irradiating means. An LED or a laser element can be used as the light irradiation means. Further, a combination of an LED and a laser element may be used as the light irradiation means. Further, a power supply unit for supplying electric power to the light irradiation unit can be provided. Further, the present invention provides a plurality of directional light irradiating means, and a plurality of light irradiating means which are held at a predetermined angle so as to collect light output from the plurality of light irradiating means. Means for irradiating light. Further, a light guide for guiding the light output from the light irradiation means and collected to a predetermined position can be provided. The holding means comprises a main body and a plurality of holes formed therein. Each of the plurality of holes of the holding means is formed such that each LED is inserted therein, each LED is held at a predetermined angle, and light output from each LED is collected. The main body of the holding means can be composed of a flat plate. A curved surface may be formed on the main body of the holding means.

Further, the present invention provides a plurality of directional light irradiating means, a substrate for supplying power to the light irradiating means, and a plurality of light irradiating means which are output from the plurality of light irradiating means while holding the plurality of light irradiating means at a predetermined angle. A light irradiating device comprising: a holding unit configured to collect light. Further, the present invention provides a plurality of directional light irradiating means, a substrate for supplying power to the light irradiating means, and a light output from the plurality of light irradiating means while holding the plurality of light irradiating means at a predetermined angle. Provided is a light irradiation device, comprising: holding means for collecting light; and a member disposed around the holding means and the substrate.

Further, the present invention provides a plurality of directional light irradiating means, a substrate for supplying power to the light irradiating means, and a light output from the plurality of light irradiating means while holding the plurality of light irradiating means at a predetermined angle. Provided is a light irradiation device comprising: a holding unit configured to collect light; and a member disposed around the holding unit and the substrate. A ring-shaped heat dissipating member can be used as the member. The space surrounded by the substrate, the holding means, and the members can contain a fluid having excellent thermal conductivity. Further, it is possible to provide a light guide means for guiding the light output from the light irradiation means and condensed light to a predetermined position. The light guide means can be easily attached to and detached from the light irradiation apparatus, and can be freely rotated. it can. Further, a controller for controlling the irradiation time and irradiation intensity of the light irradiation means can be provided.

Still further, the present invention provides a light irradiation device including a portable handpiece and a base portion to be placed when a hand bead is not used. The handpiece includes a plurality of directional light irradiating means, a substrate for supplying power to the light irradiating means, and a light output from the plurality of light irradiating means while holding the plurality of light irradiating means at a predetermined angle. Is collected Holding means, a light guide for guiding condensed light output from the light irradiation means to a predetermined position, a controller for controlling irradiation time and irradiation intensity of the light irradiation means, a controller and the light irradiation means And a battery for supplying power to the battery. The base unit can hold the hand bead, power supply means for supplying power to the battery of the hand bead, and the irradiation time and irradiation intensity of the light irradiation means. And a control unit means for sending to the controller. The control unit means includes a switch for programming the irradiation time and irradiation intensity of the light irradiation means, and the controller of the handpiece includes a memory, and the program set by the control unit means controls the program of the handpiece. Uploaded to memory. Further, the control unit means of the base unit has a display panel, and the display panel can display the contents of the program of the irradiation time and irradiation intensity of the light irradiation means. The control unit means of the base unit is a light irradiation device capable of displaying the state of the handpiece on the display panel when the light irradiation by the handpiece is completed and the handpiece is returned to the base unit. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a partial front sectional view of a handpiece of a light irradiation device according to the present invention. FIG. 2 is a partial cross-sectional front view of a base portion of the light irradiation device according to the present invention. FIG. 3 is a partial cross-sectional front view showing a state in which the handpiece according to the present invention is mounted on the base portion according to the present invention.

FIG. 4A is a front view of the control unit of the base of the light irradiation device according to the present invention.

FIG. 4B is a right side view of the control unit of the base portion of the light irradiation device according to the present invention.

5a and 5b are circuit diagrams of the device in the handpiece of the light irradiation device according to the present invention.

FIGS. 6A, 6B and 6C are circuit diagrams of a control unit of a base portion of the light irradiation device according to the present invention. FIG. 7A is a side view of the heat radiating ring of the hand bead of the light irradiation device according to the present invention.

FIG. 7B is a rear view of the heat radiation ring of the handpiece of the light irradiation device according to the present invention.

FIG. 8A is a cross-sectional side view of the chuck of the handpiece of the light irradiation device according to the present invention.

FIG. 8b is a rear view of the chuck of the handpiece of the light irradiation device according to the present J shellfish invention.

FIG. 9 is a simplified side view of the LED module of the light irradiation device according to the present invention.

FIG. 10 is a side sectional view of an LED module of the light irradiation device according to the present invention.

FIG. 1 la is a front sectional view of another embodiment of the holder used for the LED module of the light irradiation device according to the present invention.

FIG. 1 lb is a plan view of another embodiment of the holder used for the LED module of the light irradiation device according to the present invention.

FIG. 11c is a perspective view of another embodiment of the holder used for the LED module of the light irradiation device according to the present invention.

FIG. 1Id is a perspective view of another embodiment of the holder used for the LED module of the light irradiation device according to the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

FIG. 1 is a partial cross-sectional front view of a handpiece 1 of a light irradiation device according to the present invention. The outside of the handpiece 1 is covered with a case 10 formed of a translucent plastic material. An intelligent card 11 for controlling the light irradiation time and light intensity is provided in the handpiece 1, and the card is composed of a unit main upper part 11a and a unit main lower part 1 lb.

In addition, the hand bead 1 has an LED module 12, a heat radiating ring 13, a chuck 14, a light guide 15, and an LED module 12 activated to emit light. The power is supplied from the outside to the battery by contacting the irradiation switch 16 to be emitted, the battery 17 and the base connector of the base section described later, and the light set by the control unit of the base section. A unit contact 18 for transmitting the irradiation control data to the memory of the intelligent card 11, and a power circuit 19 which is a control circuit for transmitting power and a program from the unit contact 18. Is provided.

The LED module 12 includes, for example, 19 LEDs 12a (light irradiation means). These LEDs are used to output light in a wavelength band from 340 ηm to 480 nm according to the wavelength range suitable for hardening the photopolymerizable material. However, when curing a photopolymerizable material that cures in other wavelength ranges, an LED that outputs light in the corresponding wavelength range will be used. Further, instead of the LED module, a laser module including 19 laser elements 12a having the same shape as the LED may be used. The light source module may be configured by combining the LED and one laser element.

The leads of each LED 12a are soldered to a printed circuit on board 12b. Also, as shown in FIG. 1 and FIG. 9, the LED light generating heads are arranged so that the light output from each LED is focused on the light input end of the light guide 15. LEDs are tilted at the proper angle. For example, in the embodiment shown in FIG. 9, at 25 ° tilt angle a 1 of Uz de unit to the LED 12 _al is relative to the normal of the substrate 1 2 b, the inclination angle 2 of Uz de unit to the LE D 12 _2a 12 The light output from the head of each LED is focused on the light input end of the light head 25 mm away. The center LED is not tilted. In this case, it can be described that the LED module 12 has a focal length of 25 mm.

Fig. 9 is a simple diagram to explain the tilting state of the LED head in Fig. 1! The drawing shows a state in which the heads of the LEDs of the LED module 12 are simply bent from the base of the lead and tilted. In the embodiment of FIG. 1, as shown in the enlarged view of FIG. 10, an LED head holder 12c is used to hold the inclination angle of the head portion of each LED. The LED head holder 12c uses, for example, an aluminum plate as a main body, and a hole through which the head of each LED penetrates. 2d is formed. Each hole tilts the head of each LED at an appropriate angle when the head of each LED is inserted, and the light output from the LED is focused on the light input end of the light guide 15. To penetrate the board at an appropriate angle to the surface of the board.

The holding tool 12c may have a plate shape as shown in FIG. 10, but a holding tool 12c ′ having a curved surface can also be used as shown in FIGS. 11a to 11d. In this case, in order to hold the LED head, as shown in FIG. 11a, the holes 12d 'are inclined so that the central axes of the holes 12d' are concentrated at one point. The LED head is inserted into the hole 12d so as to protrude toward the concave side of the holder 12c. The shape of the holder is not limited to these embodiments, but may be a shape in which the convex side of the holder projects toward the side where each LED is focused. However, in this case, the holes formed in the holder are formed so as to have the opposite inclination to the embodiment shown in FIGS. 11A to 11D. Also, instead of holding one LED for each hole as in the embodiment of Fig. 1.0 and Fig. 1 la to Fig. 11 d, one hole holds multiple LEDs. You may make it. When the holder has a curved bowl surface, the distance from each LED attached to it to the light condensing position can be minimized, and when it is plate-shaped, there is no space on the concave side. This has the advantage that the size of the LED module can be small.

Referring again to FIG. 1, the heat dissipating ring 13 has a cylindrical shape and is arranged around the LED as shown in FIGS. 7 a and 7 b, which has a high heat conducting effect to enhance the heat dissipating effect. Made from aluminum alloy. The heat radiating ring 13 may be screwed to the substrate using two screw holes 13a, for example, as shown in FIG. 7B. Further, the following configuration may be used to enhance the heat radiation efficiency of the LED module 12. That is, the LEDs are connected to the substrate 12b, and the head of each LED is inserted into the hole 12d of the holder 12c and fixed. Further, the heat radiating ring 13 is brought into close contact with the anti-battery 12b and the holding portion 12c, and a fluid having excellent heat conductivity, such as silicone, is filled in a space surrounded by the substrate 12b, the holder 12c and the heat radiating ring 13. inject. Due to these heat radiation effects, the operation of the LED or the laser element 12a is stabilized, and its durability can be improved. The heat dissipating ring is made of high strength aluminum alloy , The strength around the module 12 can be increased and the module can be protected. ·

The intelligent 'card 11 has a microcontroller (U1) for controlling the light irradiation time and light irradiation intensity, and six circuits for displaying the mode status, as shown in the circuits shown in Figs. 5a and 5b. It has a green LED (D1-D6), a red LED (D19) that lights when the battery voltage drops below a predetermined voltage, and a buzzer (SPK1) that indicates that a predetermined irradiation time has elapsed. Case 10 is made of a translucent plastic, so that the light of six green LEDs (D1 to D6) and red LED (D19) can pass through the case, so that their lighting Can be confirmed from.

The light source module 12 has 19 LEDs 12a (D7-D18, D25-D31) in the circuit diagrams shown in Figs. 5a and 5b, and their LEDs are U4, U5) connected to the microcontroller of the intelligent force 11. Regiyure is intended to eliminate the unevenness of the LED light emission intensity and to keep the light emission intensity constant. As the module 12, a laser element or other equivalent light emitting element can be used instead of the LED.

LEDs and laser elements that emit light in the wavelength range of 34 Onm to 48 Onm are used. The wavelength band of the output light of the blue LED conventionally used is 440 nm to 495 nm. Using an LED or laser that has a peak emission wavelength between 34 Onm and 430 nm can cure a photopolymerized resin that cures effectively in a wavelength range different from the emission wavelength range of the blue LED.

The chuck 14 connects the light guide 15 to the tip of the handpiece 1 and is formed by cutting an aluminum alloy. As shown in FIG. 8, the conical portion 14a and the end of the light guide 15 are formed. And a chuck section 14b for holding the section. The conical portion 14 a is arranged such that the large-diameter opening side is in contact with the end of the heat radiation ring 13 of the module 12.

A pole bearing with a spring is provided on the chuck portion 14b (not shown). When the light guide 15 is inserted into the hole of the chuck portion 14b, the ball bearing is formed with a groove (not shown) formed on the outer peripheral surface of the end of the light guide. Engage with. Therefore, by inserting the light guide 15 into the hole of the chuck portion 14 b or pulling the light guide, the light guide can be easily attached to and detached from the chuck 14 or from the chuck 14. Light guides of different types can be easily replaced. Further, the ball bearing of the chuck portion 14b can engage with a groove formed on the outer peripheral surface of the light guide 15 and move along the groove, so that the light guide can be moved around its axis. As another example that can be freely rotated _c, without providing a ball bearing in the chuck portion, and without forming a groove in the light guide, both the chuck portion and a portion to be inserted into the chuck portion of the light guide or By magnetizing one of them, they may be joined by a magnetic attraction. As a result, it is possible to prevent the light guide from coming off due to a decrease in accuracy due to abrasion or interference at the joint, and no adjustment is required to prevent such a situation.

The light guide 15 is a bundle of optical fibers with excellent transparency, and as shown in Fig. 1, one end of the light guide 15 is the light input end, which is attached to the chuck. Can be The other open end is the light output end, from which light is emitted. On the outer peripheral surface of the light input end of the light guide 15 on the side attached to the chuck portion 14b, a groove is formed in which the bearing of the chuck portion 14b is engaged. However, as described above, when magnetic force is used for joining the light guide and the chuck portion 14b, the groove is not necessary. On the other hand, the light output end side is bent at an angle of 45 degrees to facilitate light irradiation. However, a light guide bent at another angle such as 60 degrees can be used. If several light guides with different angles are prepared in advance, they can be replaced if necessary. The light output end is tapered so that the tip is tapered, and the light integration efficiency can be changed depending on the degree of the taper. If several types of light guides having different degrees of the taper processing are prepared in advance, necessary light integration efficiency can be easily achieved by replacing the light guides. When the light condensed by the chuck 14 enters the light input end of the light guide, the optical fiber guides the light to the other open light output end, and the light output end. Light is emitted from the light source to irradiate a predetermined location. The battery 17 is charged by electric power supplied from a base unit described later and can be used repeatedly. If the voltage drops below the specified voltage, the red LED (D19) lights up to warn. If the battery has reached its end of life, it can be replaced with a new one.

The unit contact 18 comes in contact with a base contact of a base section described later, receives power from the outside, and supplies power to the battery 17 via the power circuit 19. In addition, as will be described later, it is also used to receive a light irradiation time and light irradiation intensity program set by the control unit of the base unit via the base contact of the base unit and transmit the program to the intelligent card 11. . The power circuit 19 functions as a control circuit for transmitting the power and program data received from the unit contact 18.

The irradiation switch 16 is a switch S1 of the circuit shown in Fig. 5a, and when it is pressed, the LED or laser element 12a is activated and light irradiation is executed according to a preset program. You.

FIG. 2 is a partial cross-sectional side view of the base 2 of the light irradiation device according to the present invention. The base section 2 supplies power and a program by contacting a base stop 20, a control panel section 21 in which the control unit 21 is stored, and a unit contact of the node bead 1. And an AC adapter 24 and a power jack 25 for connecting the AC adapter to the base contact 23.

The base top 20 has a concave portion for accommodating the handpiece 1, and the concave portion is formed into a shape that conforms to the shape when the handpiece is stored and that allows the handpiece to be easily taken out from the concave portion.

Base contacts have contacts for power supply and contacts for program transmission o

The AC adapter 24 converts AC 100 V to DC 12 V. The converted current is supplied to the control unit 21 and the power supply contact of the base contact 23 via the power supply jack 25. The control unit 21 is provided with a switch SI-S5 and display panels 21a and 2lb as shown in Fig. 4a. Switch SI—S5 corresponds to the switches shown as S1 through S5 in the circuit shown in FIG. The switch S1 is used to select the mode.For example, a mode in which strong light is continuously emitted for 10 seconds, 20 seconds, 30 seconds, 40 seconds, 50 seconds, 60 seconds, for example, up to 6 Used to select one mode from the mode that can be set freely every 1 second up to 0 seconds and the custom mode that can set the irradiation program freely. Switch S4 is a switch for returning the light irradiation program setting to the default (initial setting). For example, by default, a weak light is irradiated for 6 seconds, and then a strong light is irradiated for the next 15 seconds. If programmed, returns current settings to that setting. Here, the weak light is, for example, the light that is output when only 19 LEDs of the module 12 or 7 of the laser elements 12a are turned on, and the strong light is the total light. This is the output light when the LED or laser element is turned on. Switches S3 and S2 can be used when the custom mode is selected by switch S1, and are used to set the irradiation time of weak light and strong light, respectively. Whether to set strong light, weak light, or how long the irradiation time should be depends on the type of photopolymerized resin. However, since various factors such as the light irradiation angle, irradiation distance, and room temperature influence the curing of the photopolymerized resin, the setting can be changed according to experience. The switch S5 is for transferring (uploading) a program set by operating each switch to the memory of the intelligent card 11 of the handpiece 1.

The display panels 2 la and 2 lb display the irradiation time of weak light and the irradiation time of strong light, respectively, using two-digit numbers, as shown in Figs. 6a to 6c. 1a is composed of liquid crystal panels L1 and L2, and display panel 21b is composed of liquid crystal panels H1 and H2.

FIG. 3 shows a state in which the handpiece 1 is accommodated in the recess of the pace part 2. In that case, the handpiece is placed so that the unit contact 18 of the handpiece 1 contacts the power supply contact of the base contact 23 of the base 2. In this state, the DC converted by the AC adapter 24 is The battery is supplied to the battery 17 via the contact 23, the unit contact 18 and the power circuit 19.

Further, in this stored state, a desired light irradiation program can be set by using the switches S1 to S5 of the control unit 21. For example, press switch S1 to select custom mode. Next, when switch S3 is pressed to set the irradiation time of the weak light to 8 seconds, "0 8" is displayed on the display panel 2la. Further, when switch S2 is pressed to set the strong light irradiation time to 30 seconds, "30" is displayed on display panel 21. In this state, when the switch S5 is pressed, the set program causes the control unit 21 to disconnect the base contacts 23, the de-contacts of the base contacts 23, the unit contacts 18 and the part circuit 19. The data is uploaded to the memory of the intelligent card 11 via the PC and stored there. By performing such setting and programming a plurality of times, a plurality of different programs can be stored in the memory.

When light irradiation is performed after setting the light irradiation time and light irradiation intensity as described above, first, the hand beads are taken out of the base portion 2. In this case, since the power cord is not connected, it is easy to handle and can be carried freely. Here, if necessary, the light guide can be replaced with a light guide having a different light integration efficiency and another light guide having a different bending angle at the tip. The replacement is done by pulling out the currently installed light guide 15 from the chuck 14, and then inserting the end of another desired light guide into the chuck portion 14 a of the chuck 14. It is done by doing. Next, the light output end of the front end of the light guide 15 is turned to the position where light irradiation is performed. For example, in the case where the cavity formed by an occupational treatment or the like is filled with a light-curing resin, the light output end of the light guide 15 is directed to the light-curing resin of the tooth cavity. At that time, the light guide can rotate around its axis, so that its tip can be easily pointed at the predetermined position.

Next, the irradiation switch 16 of the handpiece 1 is pressed. At this point, there is no need to set the light irradiation time and the like. When the switch is pressed, the microphone port controller U1 of the intelligent card 11 executes light irradiation according to the program stored in the memory. For example, as described above, when the handpiece 1 is stored in the base 2 If you select the custom mode and irradiate a weak light for 8 seconds and then set a strong light for 30 seconds, the light irradiation is automatically performed according to the procedure. Will be Since the switches are not provided on the hand bead 1, no misoperation of the switches is performed during the irradiation.

When the prescribed light irradiation is completed, the user returns the handpiece 1 to the base unit 2. At this time, the unit contact 18 of the handpiece 1 is brought into contact with the base contact 23 of the base 1. At this time, the program data stored in the memory of the intelligent card 11 of the handpiece 1 is downloaded to the control unit 21 and the contents can be confirmed on the display panel. In addition, the bidirectional communication function between the microcontroller U 1 of the intelligent card of the handpiece and the control unit 21 allows the LED or laser element in the handpiece 1, the intelligent card 11, the battery The condition of 17 can be confirmed. As a result, if an abnormal state is found in any part, it is displayed on the display panel. In addition, while the handpiece 1 is placed on the base portion 2, the battery 17 of the handpiece 1 is charged, and the next light irradiation can be performed immediately.

Next, a configuration for outputting light having a wavelength different from the wavelength output from the module 12 will be described. In FIG. 1, for example, a fluorescent substance is applied to the end face of the light guide 15 on the light input side. When the light emitted from the module 12 and condensed is irradiated thereon, the fluorescent substance outputs light having a wavelength corresponding to the substance. The light is supplied to the light output end via a light guide 15. As a result, the light output from the light output end of the light guide 15 has a wavelength determined by the fluorescent substance. For this reason, for example, the light source of an LED or a laser element outputs light in the wavelength range of 340 nm to 43 O nm, and the fluorescent substance emits light in the wavelength range of 43 O nm to 530 nm. When the light is generated, the light output from the light output end of the light guide 15 is light in a wavelength range from 430 nm to 530 nm. This makes it possible to cure resins and bonding agents that cure in that wavelength range, regardless of the wavelength range of the light source light. Further, the light transmitting member coated with the fluorescent substance may be arranged, for example, between the module 12 and the light guide 15 in FIG. In this case, the light output from the module 12 is transmitted through the light transmitting member and is collected on the breast end face of the light guide 15. The collected light is output from the light output end of the light guide 15. The output light is light having a wavelength determined by the fluorescent substance. As is clear from the above description, the light irradiation device according to the present invention does not require a light condensing means for condensing the light output from the LED, so that the size of the light irradiation device can be reduced. And the corresponding costs can be reduced. Also, when the light from the LED is condensed, the light does not pass through a lens or the like, so that a decrease in the amount of light can be prevented.

Further, according to the light irradiation device of the present invention, the handpiece has a controller for controlling the irradiation time and irradiation intensity of the battery and the light source, so that the handpiece can be carried. Further, the light irradiation device according to the present invention comprises a handpiece and a base, and the base can be programmed with the setting of the irradiation time and irradiation intensity of the light source, and the program is sent to the controller of the handpiece. Since the control unit has a control unit capable of performing such operations, it is possible to prevent a switch such as a setting from being erroneously operated during light irradiation. In addition, since the handpiece and the base unit are connected via the contact, the contents of the program stored in the handpiece can be confirmed by the base unit by the mutual communication function of both, and The status of each part can be checked.

Further, according to the light irradiation device of the present invention, the space surrounded by the substrate, the holding member, and the ring can be filled with the fluid having high thermal conductivity, so that the heat from the light source is effectively released. Thus, stable operation of the device can be ensured, and durability can be improved.

Claims

The scope of the claims

I. A light irradiating device comprising a plurality of directional light irradiating means, the light irradiating means being arranged such that light output from the plurality of light irradiating means is collected.

2. The light irradiation device according to claim 1, wherein the light irradiation means is an LED or a laser element.

3. The light irradiation device according to claim 1, wherein the light irradiation means is a combination of an LED and a laser element.

4. The light irradiation device according to claim 1, further comprising a power supply unit that supplies power to the light irradiation unit.

5. Equipped with a plurality of directional light irradiating means, and a holding means for holding the plurality of light irradiating means at a predetermined angle so that light output from the plurality of light irradiating means is collected. Light irradiation device.

6. The light irradiation device according to claim 5, wherein the light irradiation means is an LED or a laser element.

7. The light irradiation device according to claim 5, wherein the light irradiation means is a combination of an LED and a laser element.

8. The light irradiation device according to claim 5, further comprising a power supply unit for supplying power to the light irradiation unit.

9. The light irradiation device according to claim 5, further comprising a light guide that guides the light output from the light irradiation unit and collected to a predetermined position.

10. The light irradiation device according to claim 5, wherein the holding means includes a main body and a plurality of holes formed therein.

II. The light irradiation device according to claim 10, wherein each of the plurality of holes of the holding means has an LED inserted therein, holds the LED at a predetermined angle, and collects light output from the LED. Irradiating device formed as follows.

12. The light irradiation device according to claim 10, wherein the main body of the holding means is formed of a flat plate.

13. The light irradiation device according to claim 10, wherein the main body of the holding means has a curved surface.

14. A plurality of directional light irradiation means, a substrate for supplying power to the light irradiation means, and light output from the plurality of light irradiation means while holding the plurality of light irradiation means at a predetermined angle. And a holding means for collecting light.

15. A plurality of directional light irradiating means, a substrate for supplying power to the light irradiating means, and light output from the plurality of light irradiating means while holding the plurality of light irradiating means at a predetermined angle. A light irradiation device comprising: holding means for collecting light; and members arranged around the holding means and the substrate.

16. A plurality of directional light irradiation means, a substrate for supplying power to the light irradiation means, and light output from the plurality of light irradiation means while holding the plurality of light irradiation means at a predetermined angle. A light irradiation device comprising: holding means for collecting light; and a member disposed around the holding means and the substrate.

17. The light irradiation device according to claim 16, wherein the holding means includes a main body and a plurality of holes formed therein.

18. The light irradiation device according to claim 17, wherein each of the plurality of holes of the holding means has an LED inserted therein, holds the LED at a predetermined angle, and collects light output from the LED. Irradiating device formed as follows.

19. The light irradiation device according to claim 17, wherein the main body of the holding means is formed of a flat plate.

20. The light irradiation device according to claim 17, wherein the main body of the holding means has a curved surface.

21. The light irradiation device according to claim 16, wherein the member is a ring-shaped heat radiation member. .

2 2. Claims! 6. The light irradiation device according to 6, wherein the space surrounded by the substrate, the holding means, and the member accommodates a fluid having excellent thermal conductivity.

23. The light irradiation device according to claim 16, further comprising a light guide for guiding the light output from the light irradiation means and collected to a predetermined position.

24. The light irradiation device according to claim 23, further comprising a mounting hole formed at an output end of the light irradiation device, into which the light guide is inserted, and a spring attached to an inner surface of the mounting hole. And a groove for engaging with the ball bearing is formed on an outer peripheral surface of an end portion of the light guide means, and the light guide means is inserted into the mounting hole. The ball bearing engages with the groove of the rat guide means, whereby the light guide means can be easily attached to and detached from the mounting hole, and the light guide means can freely move inside the mounting hole. Light irradiation device that can rotate.

25. The light irradiation device according to claim 14, further comprising a controller that controls an irradiation time and an irradiation intensity of the light irradiation unit.

26. The light irradiation device according to claim 15, further comprising a controller that controls irradiation time and irradiation intensity of the light irradiation unit.

27. The light irradiation device according to claim 16, further comprising: a controller that controls irradiation time and irradiation intensity of the light irradiation unit.

28. A light irradiation device comprising a portable handpiece and a base portion to be placed when the handpiece is not used,

The handpiece comprises: a plurality of directional light irradiators; a substrate for supplying power to the light irradiators; and a plurality of light irradiators output from the plurality of light irradiators while holding the plurality of light irradiators at a predetermined angle. Holding means for condensing light, a light guide for guiding the condensed light output from the light irradiation means to a predetermined position, and controlling the irradiation time and irradiation intensity of the light irradiation means. A controller, and a battery for supplying power to the controller and the light irradiation unit,

The base unit can program a holding unit that holds the handpiece, a power supply unit that supplies power to a battery of the handpiece, and an irradiation time and an irradiation intensity of the light irradiation unit. A control unit for sending a program to a controller of the hand bead.

29. The light irradiation device according to claim 28, wherein the light irradiation means is an LED or a laser.

30. The light irradiation device according to claim 28, wherein the light irradiation means is a combination of an LED and a laser-element.

31. The light irradiation device according to claim 28, further comprising: a member disposed around the holding means and the substrate.

32. The light irradiation device according to claim 28, wherein the holding means includes a main body and a plurality of holes formed therein.

33. The light irradiation device according to claim 28, wherein each of the plurality of holes of the holding unit has an LED inserted therein, holds the LED at a predetermined angle, and collects light output from the LED. Irradiating device formed as follows.

34. The light irradiation device according to claim 32, wherein the main body of the holding means is formed of a flat plate.

35. The light irradiation device according to claim 32, wherein the main body of the holding means has a curved surface.

36. The light irradiation device according to claim 31, wherein the member is a ring-shaped heat radiation member.

37. The light irradiation device according to claim 31, wherein the substrate, the holding means, and the member form a space therein, and the space contains a fluid having excellent thermal conductivity.

38. The light irradiation device according to claim 28, wherein the controller of the handpiece includes: an LED that indicates a state of an irradiation time and an irradiation intensity of the light irradiation unit; and an LED that indicates a voltage state of the battery. apparatus.

39. The light irradiation device according to claim 28, wherein the control unit of the base unit includes a switch for programming an irradiation time and an irradiation intensity of the light irradiation unit. A light irradiation device, wherein a controller of the handpiece includes a memory, and a program set by the control means is uploaded to a memory of the controller of the handpiece.

40. The light irradiation device according to claim 28, wherein the control unit means of the base unit includes a display panel, and the display panel has a program for irradiating time and irradiation intensity of the light irradiation means. A light irradiation device that can display the contents.

41. The light irradiation device according to claim 28, wherein the control unit of the base portion is configured to: when the light irradiation by the hand bead is completed and the handpiece is returned to the base portion, A light irradiation device capable of displaying a state of the handpiece on a display panel.