EP2051002A3 - Vehicle headlight - Google Patents

Vehicle headlight Download PDF

Info

Publication number
EP2051002A3
EP2051002A3 EP20080018094 EP08018094A EP2051002A3 EP 2051002 A3 EP2051002 A3 EP 2051002A3 EP 20080018094 EP20080018094 EP 20080018094 EP 08018094 A EP08018094 A EP 08018094A EP 2051002 A3 EP2051002 A3 EP 2051002A3
Authority
EP
European Patent Office
Prior art keywords
reflecting surface
light source
vehicle headlight
light
illumination direction
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.)
Withdrawn
Application number
EP20080018094
Other languages
German (de)
French (fr)
Other versions
EP2051002A2 (en
Inventor
Tadanobu Abe
Kenji Shigematsu
Noriko Taniguchi
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.)
Stanley Electric Co Ltd
Original Assignee
Stanley Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stanley Electric Co Ltd filed Critical Stanley Electric Co Ltd
Publication of EP2051002A2 publication Critical patent/EP2051002A2/en
Publication of EP2051002A3 publication Critical patent/EP2051002A3/en
Withdrawn legal-status Critical Current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
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/162—Incandescent light sources, e.g. filament or halogen lamps
    • F21S41/164—Incandescent light sources, e.g. filament or halogen lamps having two or more filaments
    • 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
    • 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
    • F21S41/334—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors
    • F21S41/336—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors with discontinuity at the junction between adjacent areas
    • 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
    • F21S41/337—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector having a structured surface, e.g. with facets or corrugations
    • 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/36—Combinations of two or more separate reflectors
    • F21S41/365—Combinations of two or more separate reflectors successively reflecting the light
    • 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
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/20—Illuminance distribution within the emitted light

Landscapes

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

Abstract

A vehicle headlight (10, 20) with a simple configuration is to be provided, which can suppress or prevent the generation of any glare light occurring due to the reflection by a second reflecting surface (13) provided near the lower area of a first reflecting surface (12). The vehicle headlight (10) can include: a light source (11); a first reflecting surface (12) disposed behind the light source (11) so as to reflect light (L1) from the light source (11) to an illumination direction, the first reflecting surface (12) having a focus (F) at or near the position of the light source (11) and a center axis (O) along the light illumination direction and being concave toward the illumination direction; and a second reflecting surface (13) extending at least adjacent to an edge of the first reflecting surface (12). In the vehicle headlight (10), part (12a) of the first reflecting surface (12) near the second reflecting surface (13) is disposed to serve as a third reflecting surface that has a different reflecting surface shape from that of the first reflecting surface (12) and that can reflect light (L2, L3) that is emitted from the light source (11) rearward and downward and directed near the second reflecting surface (13), in the illumination direction.
EP20080018094 2007-10-19 2008-10-15 Vehicle headlight Withdrawn EP2051002A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007273094A JP5086029B2 (en) 2007-10-19 2007-10-19 Vehicle headlamp

Publications (2)

Publication Number Publication Date
EP2051002A2 EP2051002A2 (en) 2009-04-22
EP2051002A3 true EP2051002A3 (en) 2010-06-02

Family

ID=40083643

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080018094 Withdrawn EP2051002A3 (en) 2007-10-19 2008-10-15 Vehicle headlight

Country Status (2)

Country Link
EP (1) EP2051002A3 (en)
JP (1) JP5086029B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103511945A (en) * 2012-06-20 2014-01-15 汽车照明罗伊特林根有限公司 Lamp, especially vehicle lamp

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5444051B2 (en) * 2010-03-12 2014-03-19 スタンレー電気株式会社 Vehicle lighting
KR101273076B1 (en) 2011-09-29 2013-06-10 에스엘 주식회사 Double reflecting structure
JP7287241B2 (en) 2019-10-30 2023-06-06 市光工業株式会社 vehicle headlight

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE375649C (en) * 1923-05-16 Robert Bosch Akt Ges Non-dazzling vehicle headlights
GB198744A (en) * 1922-03-02 1923-06-04 Charles Bowman Maynard Improved anti-dazzle head or other light
US1464166A (en) * 1920-10-27 1923-08-07 Benjamin Electric Mfg Co Automobile lamp
US3375363A (en) * 1964-10-14 1968-03-26 Philips Corp Vehicle headlights with profiled cover glasses
DE3024040A1 (en) * 1979-06-29 1981-01-08 Cibie Projecteurs HEADLIGHTS, ESPECIALLY FOR MOTOR VEHICLES
US4682072A (en) * 1984-07-26 1987-07-21 Stanley Electric Co., Ltd. Headlamp for vehicle
EP0253243A1 (en) * 1986-07-16 1988-01-20 Valeo Vision Reflector for motor vehicle headlamps with a modified main beam
DE102005042996A1 (en) * 2004-09-10 2006-04-20 Koito Manufacturing Co., Ltd. vehicle headlights

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6231303U (en) * 1985-07-15 1987-02-25
JPH028326Y2 (en) * 1985-09-10 1990-02-28
JP2002075009A (en) * 2000-08-25 2002-03-15 Toshiba Lighting & Technology Corp Floodlight

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE375649C (en) * 1923-05-16 Robert Bosch Akt Ges Non-dazzling vehicle headlights
US1464166A (en) * 1920-10-27 1923-08-07 Benjamin Electric Mfg Co Automobile lamp
GB198744A (en) * 1922-03-02 1923-06-04 Charles Bowman Maynard Improved anti-dazzle head or other light
US3375363A (en) * 1964-10-14 1968-03-26 Philips Corp Vehicle headlights with profiled cover glasses
DE3024040A1 (en) * 1979-06-29 1981-01-08 Cibie Projecteurs HEADLIGHTS, ESPECIALLY FOR MOTOR VEHICLES
US4682072A (en) * 1984-07-26 1987-07-21 Stanley Electric Co., Ltd. Headlamp for vehicle
EP0253243A1 (en) * 1986-07-16 1988-01-20 Valeo Vision Reflector for motor vehicle headlamps with a modified main beam
DE102005042996A1 (en) * 2004-09-10 2006-04-20 Koito Manufacturing Co., Ltd. vehicle headlights

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103511945A (en) * 2012-06-20 2014-01-15 汽车照明罗伊特林根有限公司 Lamp, especially vehicle lamp

Also Published As

Publication number Publication date
EP2051002A2 (en) 2009-04-22
JP5086029B2 (en) 2012-11-28
JP2009104815A (en) 2009-05-14

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