EP0890785A3 - Vehicle headlights - Google Patents

Vehicle headlights Download PDF

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Publication number
EP0890785A3
EP0890785A3 EP98112725A EP98112725A EP0890785A3 EP 0890785 A3 EP0890785 A3 EP 0890785A3 EP 98112725 A EP98112725 A EP 98112725A EP 98112725 A EP98112725 A EP 98112725A EP 0890785 A3 EP0890785 A3 EP 0890785A3
Authority
EP
European Patent Office
Prior art keywords
light
profiles
reflector
lens
coating
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
Application number
EP98112725A
Other languages
German (de)
French (fr)
Other versions
EP0890785A2 (en
EP0890785B1 (en
Inventor
Karl-Otto Dobler
Kurt Schuster
Juergen Dr. Wulf
Andreas Schien
Klaus Nagel
Doris Boebel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Marelli Germany GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19814478A external-priority patent/DE19814478A1/en
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0890785A2 publication Critical patent/EP0890785A2/en
Publication of EP0890785A3 publication Critical patent/EP0890785A3/en
Application granted granted Critical
Publication of EP0890785B1 publication Critical patent/EP0890785B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/28—Cover glass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

Der Scheinwerfer weist eine Linse (16) auf, durch die von einer Lichtquelle ausgesandtes und durch einen Reflektor reflektiertes Licht hindurchtritt. Außerdem ist ein die Linse (16) auf wenigstens einem Teil ihres Umfangs umgebendes wenigstens teilweise lichtdurchlässiges Element (40) vorgesehen, durch das von der Lichtquelle ausgesandtes, vom Reflektor nicht erfaßbares Licht hindurchtreten kann. Das Element (40) weist an seiner dem Reflektor zugewandten Seite ringförmige optische Profile (42) zur Bildung einer Fresnellinse auf und an seiner in Lichtaustrittsrichtung (14) weisenden Seite erhabene Profile (46). Die Profile (46) sind mit in Lichtaustrittsrichtung (14) weisenden Abflachungen (48) versehen, auf die eine reflektierende Beschichtung (44) aufgebracht ist, wobei die zwischen den Profilen (46) liegenden Bereiche des Elements (40) keine Beschichtung aufweisen, so daß dort Licht durch das Element (40) hindurchtreten kann. Durch die Fresnellinse wird von der Lichtquelle ausgesandtes und durch das Element (40) hindurchtretendes Licht gesammelt während von außen auf das Element (40) treffendes Licht durch die Beschichtung (44) reflektiert wird.

Figure 00000001
The headlight has a lens (16) through which light emitted by a light source and reflected by a reflector passes. In addition, an at least partially translucent element (40) surrounding the lens (16) on at least part of its circumference is provided, through which light emitted by the light source and not detectable by the reflector can pass. The element (40) has annular optical profiles (42) on its side facing the reflector to form a Fresnel lens and raised profiles (46) on its side pointing in the light exit direction (14). The profiles (46) are provided with flats (48) pointing in the light exit direction (14), to which a reflective coating (44) is applied, the areas of the element (40) lying between the profiles (46) having no coating, so that light can pass through the element (40) there. The Fresnel lens collects light emitted by the light source and passes through the element (40), while light hitting the element (40) from outside is reflected by the coating (44).
Figure 00000001
EP98112725A 1997-07-10 1998-07-09 Vehicle headlights Expired - Lifetime EP0890785B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19729478 1997-07-10
DE19729478 1997-07-10
DE19814478A DE19814478A1 (en) 1997-07-10 1998-04-01 Headlights for vehicles
DE19814478 1998-04-01

Publications (3)

Publication Number Publication Date
EP0890785A2 EP0890785A2 (en) 1999-01-13
EP0890785A3 true EP0890785A3 (en) 2001-01-17
EP0890785B1 EP0890785B1 (en) 2006-08-30

Family

ID=26038172

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98112725A Expired - Lifetime EP0890785B1 (en) 1997-07-10 1998-07-09 Vehicle headlights

Country Status (3)

Country Link
US (1) US6220736B1 (en)
EP (1) EP0890785B1 (en)
DE (1) DE59813700D1 (en)

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DE19851374C2 (en) * 1998-11-07 2001-06-21 Reitter & Schefenacker Gmbh Luminaire optics for a motor vehicle lamp
JP3904760B2 (en) 1999-05-17 2007-04-11 株式会社小糸製作所 Vehicle sign light
DE10036324A1 (en) * 2000-07-26 2002-02-07 Hella Kg Hueck & Co Multi-chamber light for vehicles
US6504477B1 (en) * 2001-09-26 2003-01-07 Yu-Chu Lin Secondary alert light for motor vehicles
US6910791B2 (en) * 2002-03-15 2005-06-28 Stanley Electric Co., Ltd. Headlight
EA009340B1 (en) 2003-07-29 2007-12-28 Турхан Алджелик Headlamp with a continuous long-distance illumination without glaring effects
US7083304B2 (en) * 2003-08-01 2006-08-01 Illumination Management Solutions, Inc. Apparatus and method of using light sources of differing wavelengths in an unitized beam
US20050030759A1 (en) * 2003-08-04 2005-02-10 Guide Corporation Bifocal hyperbolic catadioptric collection system for an automotive lamp
US7246917B2 (en) * 2003-08-12 2007-07-24 Illumination Management Solutions, Inc. Apparatus and method for using emitting diodes (LED) in a side-emitting device
JP2007507846A (en) * 2003-10-06 2007-03-29 イルミネーション マネジメント ソリューションズ インコーポレイテッド Improved light source using light emitting diodes and improved method of collecting energy emitted from light emitting diodes
DE102004013962A1 (en) * 2003-12-22 2005-07-21 Schott Ag Fresnel lens spotlight for pocket lamp, has diffusing screen placed in center of fresnel lens to produce scattered light ratio and aperture angle of light to provide mixing ratio of light relative to another light imaged by lens
DE10361118B4 (en) * 2003-12-22 2011-12-22 Auer Lighting Gmbh Fresnels
DE10361116B4 (en) * 2003-12-22 2010-06-17 Auer Lighting Gmbh Fresnels
RU2302585C2 (en) * 2003-12-22 2007-07-10 Шотт Аг Searchlight
JP4205048B2 (en) * 2004-02-26 2009-01-07 株式会社小糸製作所 Vehicle headlamp
JP2005251435A (en) * 2004-03-01 2005-09-15 Koito Mfg Co Ltd Vehicle headlamp
EP1753996B1 (en) * 2004-03-30 2011-06-29 Illumination Management Solutions, Inc. An apparatus and method for improved illumination area fill
US20050286145A1 (en) * 2004-06-25 2005-12-29 Swarco Futurit Verkehrssignalsysteme Ges.M.B.H. Invention concerning a condensor lens
US7891851B2 (en) * 2005-04-05 2011-02-22 Turhan Alcelik Headlamp with long-distance illumination without glaring effect
JP4498977B2 (en) * 2005-05-18 2010-07-07 株式会社小糸製作所 Vehicle headlamp
US7399106B2 (en) * 2005-06-13 2008-07-15 Toyota Motor Engineering & Manufacturing North America, Inc. Lens optics used to reduce part deformation due to heat
US20070210907A1 (en) * 2005-06-29 2007-09-13 Aron Mathew R Illuminated motorcycle fairing element
US7425893B2 (en) * 2005-06-29 2008-09-16 Mathew Randolph Aron Integrated motorcycle light frame and turn signal assembly
JP4527621B2 (en) * 2005-07-19 2010-08-18 株式会社小糸製作所 Vehicle lighting
DE102005043819A1 (en) * 2005-09-13 2007-03-29 Doctor Optics Gmbh Headlight lens for a motor vehicle headlight
JP4895831B2 (en) * 2007-01-18 2012-03-14 スタンレー電気株式会社 Vehicle lighting
CN101339268B (en) * 2007-07-06 2011-07-27 鸿富锦精密工业（深圳）有限公司 Backlight module group and its optical plate
US7950821B1 (en) 2007-10-26 2011-05-31 Georgitsis Anthony C Auxiliary lighting systems
JP5677105B2 (en) * 2011-01-25 2015-02-25 スタンレー電気株式会社 Vehicle lighting
KR101262546B1 (en) * 2011-11-09 2013-05-08 기아자동차주식회사 Vehicle lamp structure
DE102012107427A1 (en) * 2012-08-14 2014-05-22 Hella Kgaa Hueck & Co. Optical surface and lighting device for vehicles
CN102767773B (en) * 2012-08-17 2016-12-21 哈尔滨固泰电子有限责任公司 LED automobile dipped headlights and preparation method thereof
JP2017033798A (en) * 2015-08-03 2017-02-09 スタンレー電気株式会社 Lamp
CN105351771A (en) * 2015-12-15 2016-02-24 重庆信德电子有限公司 Lamp capable of increasing irradiation distance
JP6682864B2 (en) * 2016-01-14 2020-04-15 富士ゼロックス株式会社 Transmission member, irradiation device and electronic pen
DE102016101769A1 (en) * 2016-01-26 2017-07-27 Ulrich Sattler lamp
CN105805668B (en) * 2016-03-22 2019-05-24 天津伽蓝德汽车零部件有限公司 A kind of enhanced lighting system of Vehicle lighting
CN109764303A (en) * 2018-12-19 2019-05-17 深圳市九洲光电科技有限公司 A kind of double lens LED light

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1393573A (en) * 1920-10-21 1921-10-11 John A Ritter Headlamp
DE3218703A1 (en) * 1982-05-18 1983-11-24 Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt Dimmed vehicle headlights
FR2530781A1 (en) * 1982-07-23 1984-01-27 Cibie Projecteurs Vehicle signal lamp
US4949226A (en) * 1988-06-24 1990-08-14 Koito Seisakusko Co., Ltd. Projector-type lighting device of expanded outline appearance for use as a vehicular headlamp or the like
DE19519872A1 (en) * 1995-05-31 1996-12-05 Bosch Gmbh Robert Vehicle headlamp design

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* Cited by examiner, † Cited by third party
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US4158222A (en) * 1977-09-26 1979-06-12 Gulf & Western Industries, Inc. Limited visibility signal device
JPH0320961Y2 (en) * 1986-12-23 1991-05-08
US5023758A (en) * 1989-11-13 1991-06-11 General Electric Company Single arc discharge headlamp with light switch for high/low beam operation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1393573A (en) * 1920-10-21 1921-10-11 John A Ritter Headlamp
DE3218703A1 (en) * 1982-05-18 1983-11-24 Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt Dimmed vehicle headlights
FR2530781A1 (en) * 1982-07-23 1984-01-27 Cibie Projecteurs Vehicle signal lamp
US4949226A (en) * 1988-06-24 1990-08-14 Koito Seisakusko Co., Ltd. Projector-type lighting device of expanded outline appearance for use as a vehicular headlamp or the like
DE19519872A1 (en) * 1995-05-31 1996-12-05 Bosch Gmbh Robert Vehicle headlamp design

Also Published As

Publication number Publication date
DE59813700D1 (en) 2006-10-12
EP0890785A2 (en) 1999-01-13
US6220736B1 (en) 2001-04-24
EP0890785B1 (en) 2006-08-30

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