US20020034076A1 - Reading light for a vehicle interior - Google Patents
Reading light for a vehicle interior Download PDFInfo
- Publication number
- US20020034076A1 US20020034076A1 US09/739,120 US73912000A US2002034076A1 US 20020034076 A1 US20020034076 A1 US 20020034076A1 US 73912000 A US73912000 A US 73912000A US 2002034076 A1 US2002034076 A1 US 2002034076A1
- Authority
- US
- United States
- Prior art keywords
- light
- lens
- reading
- light source
- reading light
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/50—Mounting arrangements
- B60Q3/51—Mounting arrangements for mounting lighting devices onto vehicle interior, e.g. onto ceiling or floor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/70—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose
- B60Q3/76—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose for spotlighting, e.g. reading lamps
-
- 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
- F21V5/008—Combination of two or more successive refractors along an optical axis
-
- 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
- F21V5/04—Refractors for light sources of lens shape
- F21V5/045—Refractors for light sources of lens shape the lens having discontinuous faces, e.g. Fresnel lenses
-
- 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
- F21W2106/00—Interior vehicle lighting devices
-
- 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]
Definitions
- This present invention relates to a reading light for a vehicle interior.
- a reading light having a light source arranged in a light fixture housing, which includes a lens disposed in front of the light emitting direction of the light source.
- German Patent Application 25 07 857 A1 describes a reading light or a seat light for use with vehicles.
- the reading light includes a light fixture housing that includes a spherical light fixture body pivotally mounted in a receptacle in the light fixture housing.
- the light fixture body has an incandescent lamp or bulb light source that is surrounded by a reflector.
- a lens covers an opening in the light fixture housing and is positioned such that is receives light directly emitted from the light source.
- a disadvantage of known reading light designs is that they are not suitable for light sources having a small beam width or spread factor; for example, light-emitting diodes.
- Another disadvantage of known reading light designs is that they are not suitable for producing a beam of light having a small beam width because the structural depth of the prior related art reading light devices is too great.
- An object of the present invention is to provide a reading light structure capable of using light-emitting diodes as a light source and which produces a small or narrow beam of light.
- a reading light including a light source arranged in a light fixture housing, a second lens placed in front of the light source in the direction of light emission, and a first lens positioned between the light source and the second lens.
- the lens system including a first lens and a second lens
- even light sources having a relatively small beam width may be used.
- the lens system may be constructed with a relatively small structural depth.
- the lens system according to the present invention provides a homogeneous plane of illumination. When using light-emitting diodes having arrays of individual so-called dies, the dies are not imaged sharply in the illumination plane which, would lead to a non-homogeneous light distribution in the illumination plane.
- the light source is a light-emitting diode arranged at the focal point of the first lens, which is designed as a convergent lens.
- the first lens is in turn arranged at the focal point of the second lens.
- the first lens and a holder thereof form the orifice or aperture lens, and the second lens and a holder thereof form the field lens. This arrangement leads to a uniform light distribution or light intensity over an illuminated area.
- the light source or the light-emitting diode is arranged between the focal point of the first lens and the first lens.
- the focal point of the first lens is arranged behind the light-emitting diode or the stop plane, a compact reading light having a very small structural depth may be realized.
- the arrangement of the focal point behind the plane of the orifice also leads to a virtual object plane, with the result that the beam aperture or light panel may be increased in size, which in turn leads to an increase in efficiency of the light system.
- the light distribution of the illuminated area may therefore have its maximum at the center and decreases toward an edge thereof.
- the second lens is designed as a Fresnel lens. Due to the use of a Fresnel lens, a uniform light intensity of the illuminated area can be achieved. It is also possible to design the second lens as a biconvex lens.
- the light-emitting diode has a light fixture housing with two pins or two terminals as electric contacts, which may receive a plug that supplies electrical connectivity.
- the plug for contacting the light-emitting diode also seals the light fixture housing on its rear side.
- FIG. 1 illustrates a cross-sectional view of a reading light according to the present invention having the Fresnel lens as the second lens;
- FIG. 2 illustrates a cross-sectional view of a reading light according to the present invention having a biconvex lens as the second lens;
- FIG. 3 illustrates an exterior side view of a reading light according to the present invention
- FIG. 4 illustrates an exterior rear view of the reading light illustrated in FIG. 3 as seen from direction IV;
- FIG. 5 illustrates a side view of a plug according to the present invention
- FIG. 6 illustrates a bottom view of the plug illustrated in FIG. 5 as seen from direction VI;
- FIG. 7 illustrates a top view of the plug illustrated in FIG. 5 as seen from direction VII;
- FIG. 8 illustrates a beam path diagram of a reading light according to the present invention with a light-emitting diode at the focal point of the first lens
- FIG. 9 illustrates a beam path diagram of a reading light according to the present invention with the focal point of the first lens behind the light-emitting diode.
- a reading light 1 includes a light fixture housing 2 , a light source 3 , a first lens 4 and a second lens 5 .
- the light fixture housing 2 has a spherical light fixture body 6 , which is pivotally mounted in a shell 7 .
- the light fixture body 6 has a light source 3 on its rear end 8 , the light source 3 is a light-emitting diode 9 .
- a light panel diaphragm 11 is placed in front of the light-emitting diode 9 in the direction 10 of its light emission.
- a color filter 12 designed as filter ring 13 is arranged coaxially with light-emitting diode 9 .
- the first lens 4 is secured by a lens holder 14 of the light-emitting diode 9 , integrally molded on the light fixture body 6 , and the filter ring 13 .
- the first lens 4 is designed as a convergent lens, preferably a plano-convex lens with a free-form area whose first focal point F 1 is arranged behind the light-emitting diode 9 opposite the direction 10 of emission. However, it is also possible to arrange the light-emitting diode 9 and/or its light panel 11 directly in the first focal point F 1 .
- the light fixture body 6 has a tube 15 whose rear end 16 connects into the lens holder 14 , and on whose free end 17 , upstream from the first lens 4 facing away from the rear end 16 , the second lens 5 is held in a shoulder 18 .
- the second lens 5 is a Fresnel lens 19 .
- the second lens 5 is a biconvex lens 20 .
- a beam aperture stop or light panel 21 is positioned in the plane of the first lens 4 .
- a beam angle width or spreading factor of ⁇ 1 is formed by the beam aperture stop or light panel 21 .
- the first lens 4 is arranged at a second focal point F 2 of the second lens 5 .
- a field aperture stop 22 is positioned in the plane of the second lens 5 .
- An illumination area 23 is thereby illuminated uniformly with parallel light intensity 24 emitted from the dual lens system.
- a virtual object plane 25 with a virtual beam angle width or virtual spreading factor ⁇ 1 is produced.
- a field aperture stop 26 is formed at the focal point F 1 in the plane of the first lens 4 .
- a real beam angle width or real spreading factor ⁇ 2 is formed, which is much larger than the virtual beam angle ⁇ 1 .
- a beam aperture stop or light panel 28 is shifted in the direction of the second lens 5 so that it increases in size, therefore, the light system efficiency is excellent.
- the light distribution is maximum at the core and decreases toward the edges.
- the light-emitting diode 9 has a housing 29 with two pins 30 as electric contacts over which a plug 31 can be placed to provide electrical contact.
- the plug 31 is designed so that it seals the light fixture housing 2 on its rear side 32 to prevent dust, moisture and the like from entering the lens system.
- the plug 31 forms a twist guard for a cooling body 33 arranged on the rear side 32 of the light fixture housing 2 .
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
Description
- 1. Field of the Invention
- This present invention relates to a reading light for a vehicle interior. In particular, a reading light having a light source arranged in a light fixture housing, which includes a lens disposed in front of the light emitting direction of the light source.
- 2. Related Art
-
German Patent Application 25 07 857 A1 describes a reading light or a seat light for use with vehicles. The reading light includes a light fixture housing that includes a spherical light fixture body pivotally mounted in a receptacle in the light fixture housing. The light fixture body has an incandescent lamp or bulb light source that is surrounded by a reflector. A lens covers an opening in the light fixture housing and is positioned such that is receives light directly emitted from the light source. - A disadvantage of known reading light designs is that they are not suitable for light sources having a small beam width or spread factor; for example, light-emitting diodes. Another disadvantage of known reading light designs is that they are not suitable for producing a beam of light having a small beam width because the structural depth of the prior related art reading light devices is too great.
- An object of the present invention is to provide a reading light structure capable of using light-emitting diodes as a light source and which produces a small or narrow beam of light.
- This object and other objects of the present invention are achieved by providing a reading light, including a light source arranged in a light fixture housing, a second lens placed in front of the light source in the direction of light emission, and a first lens positioned between the light source and the second lens.
- Due to the use of a lens system including a first lens and a second lens, even light sources having a relatively small beam width may be used. Moreover, the lens system may be constructed with a relatively small structural depth. In addition, the lens system according to the present invention provides a homogeneous plane of illumination. When using light-emitting diodes having arrays of individual so-called dies, the dies are not imaged sharply in the illumination plane which, would lead to a non-homogeneous light distribution in the illumination plane.
- According to a preferred embodiment of the present invention, the light source is a light-emitting diode arranged at the focal point of the first lens, which is designed as a convergent lens. The first lens is in turn arranged at the focal point of the second lens. The first lens and a holder thereof form the orifice or aperture lens, and the second lens and a holder thereof form the field lens. This arrangement leads to a uniform light distribution or light intensity over an illuminated area.
- According to another preferred embodiment of the present invention, the light source or the light-emitting diode is arranged between the focal point of the first lens and the first lens.
- Therefore, because the focal point of the first lens is arranged behind the light-emitting diode or the stop plane, a compact reading light having a very small structural depth may be realized. The arrangement of the focal point behind the plane of the orifice also leads to a virtual object plane, with the result that the beam aperture or light panel may be increased in size, which in turn leads to an increase in efficiency of the light system. The light distribution of the illuminated area may therefore have its maximum at the center and decreases toward an edge thereof.
- According to another preferred embodiment of the present invention, the second lens is designed as a Fresnel lens. Due to the use of a Fresnel lens, a uniform light intensity of the illuminated area can be achieved. It is also possible to design the second lens as a biconvex lens.
- Due to the use of light-emitting diodes as the light source, a long lifetime of the light source with a low electric power can be achieved. Furthermore, when using light-emitting diodes, a small light outlet area can be implemented.
- According to another preferred embodiment of the present invention, the light-emitting diode has a light fixture housing with two pins or two terminals as electric contacts, which may receive a plug that supplies electrical connectivity.
- Accordingly, since the pins or terminals are used for receiving electricity, supplying electrical power by means of a plug is greatly simplified.
- According to another preferred embodiment of the present invention, the plug for contacting the light-emitting diode also seals the light fixture housing on its rear side.
- Further scope of applicability of the present invention will become apparent from the detailed description given hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.
- The present invention will become more fully understood from the detailed description given hereinbelow and the accompanying drawings which are given by way of illustration only, and thus are not limitative of the present invention, and wherein:
- FIG. 1 illustrates a cross-sectional view of a reading light according to the present invention having the Fresnel lens as the second lens;
- FIG. 2 illustrates a cross-sectional view of a reading light according to the present invention having a biconvex lens as the second lens;
- FIG. 3 illustrates an exterior side view of a reading light according to the present invention;
- FIG. 4 illustrates an exterior rear view of the reading light illustrated in FIG. 3 as seen from direction IV;
- FIG. 5 illustrates a side view of a plug according to the present invention;
- FIG. 6 illustrates a bottom view of the plug illustrated in FIG. 5 as seen from direction VI;
- FIG. 7 illustrates a top view of the plug illustrated in FIG. 5 as seen from direction VII;
- FIG. 8 illustrates a beam path diagram of a reading light according to the present invention with a light-emitting diode at the focal point of the first lens; and
- FIG. 9 illustrates a beam path diagram of a reading light according to the present invention with the focal point of the first lens behind the light-emitting diode.
- As is illustrated in FIGS.1-7, a reading light 1 includes a
light fixture housing 2, a light source 3, afirst lens 4 and a second lens 5. Thelight fixture housing 2 has a sphericallight fixture body 6, which is pivotally mounted in ashell 7. - The
light fixture body 6 has a light source 3 on itsrear end 8, the light source 3 is a light-emittingdiode 9. Alight panel diaphragm 11 is placed in front of the light-emitting diode 9 in thedirection 10 of its light emission. A color filter 12 designed as filter ring 13 is arranged coaxially with light-emittingdiode 9. Thefirst lens 4 is secured by alens holder 14 of the light-emittingdiode 9, integrally molded on thelight fixture body 6, and the filter ring 13. Thefirst lens 4 is designed as a convergent lens, preferably a plano-convex lens with a free-form area whose first focal point F1 is arranged behind the light-emittingdiode 9 opposite thedirection 10 of emission. However, it is also possible to arrange the light-emitting diode 9 and/or itslight panel 11 directly in the first focal point F1. - The
light fixture body 6 has atube 15 whoserear end 16 connects into thelens holder 14, and on whosefree end 17, upstream from thefirst lens 4 facing away from therear end 16, the second lens 5 is held in ashoulder 18. According to a first embodiment, the second lens 5 is a Fresnel lens 19. According to a second embodiment, the second lens 5 is abiconvex lens 20. - Referring to FIGS. 8 and 9, because the light-
emitting diode 9 is arranged at the focal point F1 of thefirst lens 4, a beam aperture stop orlight panel 21 is positioned in the plane of thefirst lens 4. As a result, a beam angle width or spreading factor of Σ1 is formed by the beam aperture stop orlight panel 21. Thefirst lens 4 is arranged at a second focal point F2 of the second lens 5. Afield aperture stop 22 is positioned in the plane of the second lens 5. Anillumination area 23 is thereby illuminated uniformly with parallellight intensity 24 emitted from the dual lens system. - If the focal point F1 of the
first lens 4 is arranged behind the light-emittingdiode 9, avirtual object plane 25 with a virtual beam angle width or virtual spreading factor Σ1 is produced. Afield aperture stop 26 is formed at the focal point F1 in the plane of thefirst lens 4. As a result, a real beam angle width or real spreading factor Σ2 is formed, which is much larger than the virtual beam angle Σ1. A beam aperture stop orlight panel 28 is shifted in the direction of the second lens 5 so that it increases in size, therefore, the light system efficiency is excellent. In particular, when abiconvex lens 20 is used, the light distribution is maximum at the core and decreases toward the edges. - The light-emitting
diode 9 has a housing 29 with twopins 30 as electric contacts over which aplug 31 can be placed to provide electrical contact. Theplug 31 is designed so that it seals thelight fixture housing 2 on itsrear side 32 to prevent dust, moisture and the like from entering the lens system. At the same time, theplug 31 forms a twist guard for a coolingbody 33 arranged on therear side 32 of thelight fixture housing 2. - The invention being thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.
Claims (10)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10046840.3 | 2000-09-20 | ||
DE10046840A DE10046840A1 (en) | 2000-09-20 | 2000-09-20 | Reading light for a vehicle interior |
DE10046840 | 2000-09-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20020034076A1 true US20020034076A1 (en) | 2002-03-21 |
US6461024B1 US6461024B1 (en) | 2002-10-08 |
Family
ID=7657132
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/739,120 Expired - Lifetime US6461024B1 (en) | 2000-09-20 | 2000-12-19 | Reading light for a vehicle interior |
Country Status (3)
Country | Link |
---|---|
US (1) | US6461024B1 (en) |
EP (1) | EP1190904A3 (en) |
DE (1) | DE10046840A1 (en) |
Cited By (4)
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US20050174791A1 (en) * | 2004-02-11 | 2005-08-11 | Federal-Mogul Corporation | Lamp assembly having variable focus and directionality |
CN104254798A (en) * | 2012-04-25 | 2014-12-31 | 欧司朗光电半导体有限公司 | Light-emitting device and method for producing such a device |
US20150167924A1 (en) * | 2012-07-27 | 2015-06-18 | Sharp Kabushiki Kaisha | Illumination device |
CN114352978A (en) * | 2022-01-07 | 2022-04-15 | 北京安达维尔民用航空技术有限公司 | Fixed reading lamp capable of rotating at multiple angles |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7682036B2 (en) * | 2001-04-11 | 2010-03-23 | General Manufacturing, Inc. | Intrinsically safe light |
US6851841B2 (en) * | 2001-11-28 | 2005-02-08 | Toyoda Gosei Co., Ltd. | Illumination device |
US6773138B2 (en) * | 2002-04-09 | 2004-08-10 | Osram Sylvania Inc. | Snap together automotive led lamp assembly |
US6773154B2 (en) * | 2002-08-21 | 2004-08-10 | North American Lighting, Inc. | Automotive lighting device |
DE10318932A1 (en) * | 2003-04-26 | 2004-11-25 | Aqua Signal Aktiengesellschaft Spezialleuchtenfabrik | Lantern, preferably for use on board ships, in particular on pleasure boats |
WO2005035308A1 (en) * | 2003-10-18 | 2005-04-21 | Daimlerchrysler Ag | Illumination device for a vehicle |
DE10358053A1 (en) * | 2003-12-05 | 2005-07-14 | Siemens Ag | light signal |
DE102004039284A1 (en) * | 2004-08-13 | 2006-04-06 | Daimlerchrysler Ag | Lighting device for the interior of motor vehicles |
US20060114681A1 (en) * | 2004-12-01 | 2006-06-01 | Junli Wang | Retractable and adjustable multi-purpose indoor lighting fixture |
US20060198155A1 (en) * | 2005-03-01 | 2006-09-07 | Sidler Inc. | Panel mounted task light for a vehicle |
CN101268305B (en) * | 2005-09-22 | 2012-05-02 | 皇家飞利浦电子股份有限公司 | Led lighting module |
US7563008B2 (en) * | 2006-03-28 | 2009-07-21 | Visteon Global Technologies, Inc. | LED projector headlamps using single or multi-faceted lenses |
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US8851709B2 (en) | 2007-03-30 | 2014-10-07 | Designs For Vision, Inc. | Remote control of illuminating headlamp |
USRE46463E1 (en) | 2007-03-30 | 2017-07-04 | Designs For Vision, Inc. | Remote control of illuminating headlamp |
US7690806B2 (en) * | 2007-03-30 | 2010-04-06 | Designs For Vision, Inc. | Illuminating headlamp providing substantially uniform illumination |
TW200846595A (en) * | 2007-05-18 | 2008-12-01 | Jarrer Co Ltd | Lamp having heat-dissipation structure |
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US7775693B2 (en) * | 2008-06-24 | 2010-08-17 | Honda Motor Co., Ltd. | Vehicle interior light assembly |
DE102009022806B4 (en) | 2009-05-27 | 2021-08-12 | Bayerische Motoren Werke Aktiengesellschaft | Motor vehicle with interior lighting |
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DE102011001737A1 (en) | 2011-04-01 | 2012-10-04 | International Automotive Components Group Gmbh | Handle component of a motor vehicle |
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Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2507857C3 (en) * | 1975-02-24 | 1980-01-10 | Carl Wilhelm Cleff Gmbh & Co Kg, 5600 Wuppertal | Lighting device |
US4530040A (en) * | 1984-03-08 | 1985-07-16 | Rayovac Corporation | Optical focusing system |
JPS62199548A (en) * | 1986-02-28 | 1987-09-03 | Ichikoh Ind Ltd | Room lamp for automobile |
US5594433A (en) * | 1995-08-09 | 1997-01-14 | Terlep; Stephen K. | Omni-directional LED lamps |
DE19621148A1 (en) * | 1996-05-14 | 1997-12-04 | Magna Reflex Holding Gmbh | Lighting element, especially e.g. for use in motor vehicles |
US5803579A (en) * | 1996-06-13 | 1998-09-08 | Gentex Corporation | Illuminator assembly incorporating light emitting diodes |
JP3951341B2 (en) * | 1997-03-21 | 2007-08-01 | マツダ株式会社 | Vehicle interior light |
DE19805771A1 (en) * | 1998-02-13 | 1999-08-19 | Hohe Gmbh & Co Kg | Illumination unit for motor vehicle |
FR2779559B1 (en) * | 1998-06-09 | 2000-07-21 | Otis Elevator Co | METHOD AND DEVICE FOR DISPLAYING A VIRTUAL IMAGE, IN PARTICULAR FROM THE CONTROL PANEL OF AN ELEVATOR CAB |
DE19833299C1 (en) * | 1998-07-24 | 2000-03-02 | Hohe Gmbh & Co Kg | Lighting device for a motor vehicle |
US6290368B1 (en) * | 1999-05-21 | 2001-09-18 | Robert A. Lehrer | Portable reading light device |
DE20000875U1 (en) * | 2000-01-19 | 2000-04-06 | Fer Fahrzeugelektrik Gmbh | Interior reading light |
-
2000
- 2000-09-20 DE DE10046840A patent/DE10046840A1/en not_active Ceased
- 2000-12-19 US US09/739,120 patent/US6461024B1/en not_active Expired - Lifetime
-
2001
- 2001-09-20 EP EP01122412A patent/EP1190904A3/en not_active Withdrawn
Cited By (10)
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US20050174791A1 (en) * | 2004-02-11 | 2005-08-11 | Federal-Mogul Corporation | Lamp assembly having variable focus and directionality |
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US7220029B2 (en) | 2004-02-11 | 2007-05-22 | Federal-Mogul World Wide, Inc. | Lamp assembly having variable focus and directionality |
CN104254798A (en) * | 2012-04-25 | 2014-12-31 | 欧司朗光电半导体有限公司 | Light-emitting device and method for producing such a device |
US20150117010A1 (en) * | 2012-04-25 | 2015-04-30 | Osram Opto Semiconductors Gmbh | Light-Emitting Device and Method for Producing Such a Device |
US9599319B2 (en) * | 2012-04-25 | 2017-03-21 | Osram Opto Semiconductors Gmbh | Light-emitting device including a semiconductor component and an optical element and method for manufacturing thereof |
DE102012103633B4 (en) * | 2012-04-25 | 2020-08-27 | OSRAM Opto Semiconductors Gesellschaft mit beschränkter Haftung | Radiation-emitting device and method for manufacturing such a device |
US20150167924A1 (en) * | 2012-07-27 | 2015-06-18 | Sharp Kabushiki Kaisha | Illumination device |
US9217552B2 (en) * | 2012-07-27 | 2015-12-22 | Sharp Kabushiki Kaisha | Illumination device |
CN114352978A (en) * | 2022-01-07 | 2022-04-15 | 北京安达维尔民用航空技术有限公司 | Fixed reading lamp capable of rotating at multiple angles |
Also Published As
Publication number | Publication date |
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EP1190904A2 (en) | 2002-03-27 |
EP1190904A3 (en) | 2004-03-31 |
DE10046840A1 (en) | 2002-07-04 |
US6461024B1 (en) | 2002-10-08 |
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