WO1995025244A1 - Lightning device - Google Patents
Lightning device Download PDFInfo
- Publication number
- WO1995025244A1 WO1995025244A1 PCT/SE1995/000262 SE9500262W WO9525244A1 WO 1995025244 A1 WO1995025244 A1 WO 1995025244A1 SE 9500262 W SE9500262 W SE 9500262W WO 9525244 A1 WO9525244 A1 WO 9525244A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- prisms
- disc
- prism
- light source
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/02—Refractors for light sources of prismatic shape
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/095—Traffic lights
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
- F21W2111/02—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for roads, paths or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S362/00—Illumination
- Y10S362/80—Light emitting diode
Definitions
- the present invention is for a lightning device by means of which a controlled light pattern is obtained from a specific light source. Controlled means that the light as projected on a flat surface produces a light pattern of a predetermined intensity and shape.
- the device according to the invention is primarily intended to be used for traffic light posts.
- the light from a light source is recognized by individuals or other means primarily when these are at a specific position within a defined area.
- the effective output required from the light source may be reduced if the light from the light source is concentrated to the desired area.
- Devices of the kind mentioned above are found both as headlights and lamps for different kinds of vehicles and as traffic signal lights. Especially for the last mentioned application known devices have primarily been intended to give an acceptably concentrated light beam have an essentially circular cross section, whereby a comparatively large border area with diffuse light refraction is obtained.
- the object of the present invention is to provide a lightning device, by means of which a carefully controlled light pattern of predetermined intensity and shape is obtained.
- the device according to the invention also makes individual variations and adaptions to specific applications possible. This is obtained thereby that the device comprises a light source which emits a number of parallel light beams. A prism is arranged for each light beam which passes through the prism. All of the prisms are integral parts of a common disc.
- the light source comprises a number of light emitting diodes, each of them emitting one light beam.
- the light emitting diodes which in one device may be individually different in respect of e. g. luminance, are suitably mounted onto a common flat plate.
- the common disc of the prims has one preferrably flat surface on the side facing away from the light source.
- a smooth, flat surfaces brings advantages, e. g. by being dirt repellant and easy to clean if necessary. Also from a production point of view a flat surface is advantageous as compared to e. g. a curved, smooth surface, making it possible to keep down the costs for moulds and tooling. This surface will be one outer side of the lightning device and be turned towards a viewer.
- Each one of all of the prisms is an integrated part of this common disc, which means that they are parts of the fixed disc construction and in a preferred embodiment the prisms and the disc constitute one piece of homogenous goods. In other embodiments individual prisms may be mounted into holes intended for this purpose in the disc.
- Disc and prisms may then be made from the same or from different materials. Essentially all of light which is emitted from the device passes through the prisms.Suitably the prisms - at least those parts thereof which protrude from the common disc - are shaped as straight circular cylinders. Each such prism has one end surface which is essentially at right angle to the axis of the cylinder and one end surface which is oblique thereto. The surface which is at right angle to the axis preferrably coincides with the flat surface of the common disc, i. e. its outer surface. The complete device thus has a common flat outer surface. If the common disc e. g.
- the oblique surface may have a freely variable angle relative to the axis of the cylinder and freely variable direction of its slope whereby the direction of the corresponding light beam is controlled.
- Figure 1 shows a disc with prisms as seen from the inside of the device.
- Figure 2 shows a cross section through a part of the disc and corresponding light sources.
- Figure 3 shows an example of a light pattern.
- Figure 4 shows some different designs of prisms at the disc.
- the common disc 2 as shown in figure 1 has a flat outer surface facing downwards in the figure. At the disc and protruding upwards from its surface are several prisms 3 having circular cross sections. The number of prisms and there positions at the disc may vary due to the application.
- One example of a design is a disc with an outer diameter of about 200 mm. At this disc there are 260 prisms, each having an outer diameter of about 8 mm.
- the disc and the prisms may be made from the same or different materials. Preferrably they are made as one piece from polycarbonate, which has properties as required in many applications regarding index of refraction, light transmission and mechanical strength.
- Another possible embodiment is a disc from a freely choosen material having a number of holes which corresponds to the number of prisms and a separate prism inserted into each hole.
- Figure 2 shows a cross section of a part of the disc with prisms, four of which are shown in the figure, and with light sources connected with the prisms. These are light emitting diodes 1 each of which emits a well concentrated light beam. o The spread of the light beam is often about 2-4 from the centre axis of the diode. The light beam is directed onto the oblique surface 6 of each prism and is refracted by this surface. Thereupon the light beam passes through the prism and is again refracted by the outer surface 5, which may be common with the outer surface 4 of the disc. For the surface which is designated 6a also the outermost light is shown and it is seen that all of the emitted light passes through the prism. Only insignificant quantities of stray light finds itself other paths.
- the oblique surfaces 6 of each prism may be varied in respect of both the angle at the centre axis of the prism and the direction of the surface.
- the surfaces 6a and 6d have the same direction but different angles, while the surfaces 6b and 6c have a somewhat different direction.
- FIG. 3 shows the desired light strength in a vertical plane at a certain distance from the lightning device.
- Figure 4a-4c shows different designs of the prisms and the corresponding disc.
- the prisms and the disc are made as one unit by injection molding of polymer, where polycarbonate has turned out to have the most suitable combination of properties.
- the oblique surface of the prism touches the inner surface of the disc and then protrudes therefrom, so that there is no pit or the like in the unit.
- the disc and prisms unit may be produced by drilling holes into an all over flat disc whereupon individual prisms are placed in these holes.
- the prisms may then be of different size as shown in figures 4b and 4c.
- the last mentioned embodiment will preferrably be used only when a very small number of identical devices shall be produced and the costs for making a mould or adaption of an existing mould for injection moulding are too high.
- the oblique surfaces of the prisms are formed on the surfaces of small, exchangeable parts of the mould. In this way changes and adaptions are possible easily and at a much lower cost than if the complete mould would have to be replaced.
- the replaceable details of the mould are controlled in some way, e. g. by means of a flattened surface, so that they can not freely be turned around there axis when they are mounted into the mould. This also applies to individual prisms when these are made as inserts into holes in a common disc.
- the invention makes it possible to obtain a desired light pattern with much increased precision. Adjustments as desired are easily made and e g left and right designs are easily obtainable.
- One plate with light emitting diodes may produce different light patterns which may be exchanged and adapted to changing conditions.
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT95913467T ATE190124T1 (en) | 1994-03-16 | 1995-03-14 | LIGHTING DEVICE |
AU20893/95A AU680754B2 (en) | 1994-03-16 | 1995-03-14 | Lightning device |
JP7523981A JPH09510572A (en) | 1994-03-16 | 1995-03-14 | Lighting equipment |
DE69515293T DE69515293T2 (en) | 1994-03-16 | 1995-03-14 | LIGHTING DEVICE |
EP95913467A EP0752081B1 (en) | 1994-03-16 | 1995-03-14 | Lightning device |
DK95913467T DK0752081T3 (en) | 1994-03-16 | 1995-03-14 | lighting device |
NO963782A NO963782L (en) | 1994-03-16 | 1996-09-10 | A lighting apparatus |
FI963660A FI963660A0 (en) | 1994-03-16 | 1996-09-16 | ILLUMINATOR |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9400875-2 | 1994-03-16 | ||
SE9400875A SE503306C2 (en) | 1994-03-16 | 1994-03-16 | ILLUMINATOR |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995025244A1 true WO1995025244A1 (en) | 1995-09-21 |
Family
ID=20393289
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE1995/000262 WO1995025244A1 (en) | 1994-03-16 | 1995-03-14 | Lightning device |
Country Status (11)
Country | Link |
---|---|
US (1) | US5806969A (en) |
EP (1) | EP0752081B1 (en) |
JP (1) | JPH09510572A (en) |
AT (1) | ATE190124T1 (en) |
AU (1) | AU680754B2 (en) |
CA (1) | CA2185597A1 (en) |
DE (1) | DE69515293T2 (en) |
DK (1) | DK0752081T3 (en) |
FI (1) | FI963660A0 (en) |
SE (1) | SE503306C2 (en) |
WO (1) | WO1995025244A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2759188A1 (en) * | 1997-01-31 | 1998-08-07 | Thery Hindrick | Signal light used for controlling road traffic |
DE10021725A1 (en) * | 2000-05-04 | 2001-11-15 | Osram Opto Semiconductors Gmbh | Faceted reflector |
EP1406042A1 (en) * | 2001-06-27 | 2004-04-07 | Nichia Corporation | Led indicator light |
NL2000996C2 (en) * | 2007-11-12 | 2008-09-15 | Ind Tech Verlichting B V | LED light fixture for e.g. street lighting, has LED's protected from weather by refractive optical components |
WO2009103458A2 (en) * | 2008-02-19 | 2009-08-27 | Miele & Cie. Kg | Cooling device having a lighting device disposed outside the cooling chamber |
WO2011107479A1 (en) * | 2010-03-01 | 2011-09-09 | Andreas Hierzer | Luminaire comprising light-orienting elements |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE511216C2 (en) * | 1997-12-30 | 1999-08-23 | Itab Neon Ab | Lighting device with LEDs |
TW457732B (en) * | 1999-08-27 | 2001-10-01 | Lumileds Lighting Bv | Luminaire, optical element and method of illuminating an object |
DE10022712B4 (en) * | 1999-12-07 | 2005-04-07 | Osram Opto Semiconductors Gmbh | Signaling insert with a lamellar arrangement for traffic signal systems |
US6443594B1 (en) * | 2000-03-31 | 2002-09-03 | Koninklijke Philips Electronics N.V. | One-piece lens arrays for collimating and focusing light and led light generators using same |
US6441750B1 (en) | 2000-08-22 | 2002-08-27 | Power Signal Technologies Inc. | Light alignment system for electronically steerable light output in traffic signals |
US7088261B2 (en) * | 2000-08-29 | 2006-08-08 | Lailai Capital Corp. | Traffic signal light having ambient light detection |
US6439743B1 (en) | 2000-10-05 | 2002-08-27 | Power Signal Technologies Inc. | Solid state traffic light apparatus having a cover including an integral lens |
US6509840B2 (en) * | 2001-01-10 | 2003-01-21 | Gelcore Llc | Sun phantom led traffic signal |
DE10144075B4 (en) * | 2001-09-07 | 2005-05-12 | Siemens Ag | Head-Up Display |
US6773139B2 (en) * | 2001-09-17 | 2004-08-10 | Gelcore Llp | Variable optics spot module |
GB0211214D0 (en) * | 2002-05-16 | 2002-06-26 | Oxley Dev Co Ltd | Light source |
US7086765B2 (en) * | 2004-03-25 | 2006-08-08 | Guide Corporation | LED lamp with light pipe for automotive vehicles |
JP5383785B2 (en) * | 2005-07-15 | 2014-01-08 | コイト電工株式会社 | Traffic light |
JP2010503172A (en) * | 2006-09-08 | 2010-01-28 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Illumination device having a plurality of light sources and two illumination patterns |
CA2630477C (en) * | 2007-05-04 | 2010-12-14 | Abl Ip Holding Llc | Adjustable light distribution system |
DE102008006229B4 (en) | 2008-01-25 | 2013-08-29 | We-Ef Leuchten Gmbh & Co. Kg | Street lighting device |
US8317369B2 (en) * | 2009-04-02 | 2012-11-27 | Abl Ip Holding Llc | Light fixture having selectively positionable housing |
US20110026249A1 (en) * | 2009-07-31 | 2011-02-03 | Jonathan Wylde | Low profile LED lighting assembly |
DE102011107895B4 (en) * | 2011-07-18 | 2020-11-05 | Heraeus Noblelight Gmbh | Optoelectronic module with lens system |
US10816939B1 (en) | 2018-05-07 | 2020-10-27 | Zane Coleman | Method of illuminating an environment using an angularly varying light emitting device and an imager |
US11184967B2 (en) | 2018-05-07 | 2021-11-23 | Zane Coleman | Angularly varying light emitting device with an imager |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2563929A1 (en) * | 1984-05-04 | 1985-11-08 | Thery Hindrick Sa | Luminous warning panel |
US4630180A (en) * | 1984-06-11 | 1986-12-16 | Kabushiki Kaisha Toshiba | Light emitting diode array |
FR2586844A1 (en) * | 1985-08-27 | 1987-03-06 | Sofrela Sa | Signalling device using light-emitting diodes |
FR2588109A1 (en) * | 1985-10-02 | 1987-04-03 | Valancogne Pierre | Light-signalling device |
US4669034A (en) * | 1985-02-13 | 1987-05-26 | Semperlux Gmbh | Non-glare device for large surface light emitting means |
FR2655173A1 (en) * | 1989-11-29 | 1991-05-31 | Garbarini Sa A | Signalling device for road traffic |
EP0449219A1 (en) * | 1990-03-26 | 1991-10-02 | Zeni Lite Buoy Co., Ltd. | Beacon lantern and lens for the same |
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US2068805A (en) * | 1935-02-04 | 1937-01-26 | Corning Glass Works | Cover glass |
DE2520429C3 (en) * | 1975-05-07 | 1978-05-11 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Translucent cover for lights |
US4214168A (en) * | 1978-09-12 | 1980-07-22 | Kulka Thomas S | Traffic light and motor vehicle taillight lenses |
FR2586847B1 (en) * | 1985-09-05 | 1988-04-22 | Pavard Gerard | RELIEF PLOTTER PENCIL. |
KR890005451A (en) * | 1987-09-21 | 1989-05-15 | 마쯔우라 다까오 | Vehicle lamp |
US4935665A (en) * | 1987-12-24 | 1990-06-19 | Mitsubishi Cable Industries Ltd. | Light emitting diode lamp |
SE463384B (en) * | 1989-03-29 | 1990-11-12 | Ericsson Traffic Systems Ab | TRAFFIC LIGHT AND PROCEDURES FOR PRODUCING THEM |
-
1994
- 1994-03-16 SE SE9400875A patent/SE503306C2/en not_active IP Right Cessation
-
1995
- 1995-03-14 JP JP7523981A patent/JPH09510572A/en active Pending
- 1995-03-14 DE DE69515293T patent/DE69515293T2/en not_active Expired - Fee Related
- 1995-03-14 CA CA002185597A patent/CA2185597A1/en not_active Abandoned
- 1995-03-14 WO PCT/SE1995/000262 patent/WO1995025244A1/en active IP Right Grant
- 1995-03-14 AU AU20893/95A patent/AU680754B2/en not_active Ceased
- 1995-03-14 AT AT95913467T patent/ATE190124T1/en not_active IP Right Cessation
- 1995-03-14 EP EP95913467A patent/EP0752081B1/en not_active Expired - Lifetime
- 1995-03-14 DK DK95913467T patent/DK0752081T3/en active
-
1996
- 1996-09-13 US US08/713,862 patent/US5806969A/en not_active Expired - Fee Related
- 1996-09-16 FI FI963660A patent/FI963660A0/en unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2563929A1 (en) * | 1984-05-04 | 1985-11-08 | Thery Hindrick Sa | Luminous warning panel |
US4630180A (en) * | 1984-06-11 | 1986-12-16 | Kabushiki Kaisha Toshiba | Light emitting diode array |
US4669034A (en) * | 1985-02-13 | 1987-05-26 | Semperlux Gmbh | Non-glare device for large surface light emitting means |
FR2586844A1 (en) * | 1985-08-27 | 1987-03-06 | Sofrela Sa | Signalling device using light-emitting diodes |
FR2588109A1 (en) * | 1985-10-02 | 1987-04-03 | Valancogne Pierre | Light-signalling device |
FR2655173A1 (en) * | 1989-11-29 | 1991-05-31 | Garbarini Sa A | Signalling device for road traffic |
EP0449219A1 (en) * | 1990-03-26 | 1991-10-02 | Zeni Lite Buoy Co., Ltd. | Beacon lantern and lens for the same |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2759188A1 (en) * | 1997-01-31 | 1998-08-07 | Thery Hindrick | Signal light used for controlling road traffic |
DE10021725A1 (en) * | 2000-05-04 | 2001-11-15 | Osram Opto Semiconductors Gmbh | Faceted reflector |
US7416315B2 (en) | 2000-05-04 | 2008-08-26 | Osram Opto Semiconductors Gmbh | Faceted reflector, reflector configuration, and method for producing the reflector |
EP1406042A1 (en) * | 2001-06-27 | 2004-04-07 | Nichia Corporation | Led indicator light |
EP1406042A4 (en) * | 2001-06-27 | 2005-07-20 | Nichia Corp | Led indicator light |
NL2000996C2 (en) * | 2007-11-12 | 2008-09-15 | Ind Tech Verlichting B V | LED light fixture for e.g. street lighting, has LED's protected from weather by refractive optical components |
EP2058584A1 (en) * | 2007-11-12 | 2009-05-13 | Industrias Derivadas del Aluminio S.L. | Lighting fixtures with LED lights for illumination of outside public areas |
WO2009103458A2 (en) * | 2008-02-19 | 2009-08-27 | Miele & Cie. Kg | Cooling device having a lighting device disposed outside the cooling chamber |
WO2009103458A3 (en) * | 2008-02-19 | 2009-11-12 | Miele & Cie. Kg | Cooling device having a lighting device disposed outside the cooling chamber |
WO2011107479A1 (en) * | 2010-03-01 | 2011-09-09 | Andreas Hierzer | Luminaire comprising light-orienting elements |
AT509563B1 (en) * | 2010-03-01 | 2015-10-15 | Hierzer Andreas | LIGHT WITH LIGHTING ELEMENTS |
Also Published As
Publication number | Publication date |
---|---|
AU680754B2 (en) | 1997-08-07 |
SE503306C2 (en) | 1996-05-13 |
FI963660A (en) | 1996-09-16 |
FI963660A0 (en) | 1996-09-16 |
ATE190124T1 (en) | 2000-03-15 |
DE69515293D1 (en) | 2000-04-06 |
US5806969A (en) | 1998-09-15 |
SE9400875L (en) | 1995-09-17 |
AU2089395A (en) | 1995-10-03 |
EP0752081B1 (en) | 2000-03-01 |
CA2185597A1 (en) | 1995-09-21 |
JPH09510572A (en) | 1997-10-21 |
DK0752081T3 (en) | 2000-08-14 |
SE9400875D0 (en) | 1994-03-16 |
DE69515293T2 (en) | 2000-09-21 |
EP0752081A1 (en) | 1997-01-08 |
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