EP2228593A3 - Vehicle headlamp - Google Patents

Vehicle headlamp Download PDF

Info

Publication number
EP2228593A3
EP2228593A3 EP10156398.9A EP10156398A EP2228593A3 EP 2228593 A3 EP2228593 A3 EP 2228593A3 EP 10156398 A EP10156398 A EP 10156398A EP 2228593 A3 EP2228593 A3 EP 2228593A3
Authority
EP
European Patent Office
Prior art keywords
positions
optical axis
large thickness
thickness portion
end edge
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
EP10156398.9A
Other languages
German (de)
French (fr)
Other versions
EP2228593B1 (en
EP2228593A2 (en
Inventor
Ippei Yamamoto
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.)
Koito Manufacturing Co Ltd
Original Assignee
Koito Manufacturing 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 Koito Manufacturing Co Ltd filed Critical Koito Manufacturing Co Ltd
Publication of EP2228593A2 publication Critical patent/EP2228593A2/en
Publication of EP2228593A3 publication Critical patent/EP2228593A3/en
Application granted granted Critical
Publication of EP2228593B1 publication Critical patent/EP2228593B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F21V7/00—Reflectors for light sources
    • 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
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
    • 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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
    • F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
    • F21S41/689—Flaps, i.e. screens pivoting around one of their edges
    • 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
    • F21W2102/10—Arrangement or contour of the emitted light
    • F21W2102/17—Arrangement or contour of the emitted light for regions other than high beam or low beam
    • F21W2102/18—Arrangement or contour of the emitted light for regions other than high beam or low beam for overhead signs

Landscapes

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

Abstract

A vehicle headlamp (10) is provided with a movable shade (20). The movable shade (20) includes a large thickness portion (20A). When the movable shade (20) positions at a light shading position, the large thickness portion (20A) positions in a vicinity of the optical axis (Ax), an upper end face (20Aa) of the large thickness portion (20A) has a concave-curved section shape in a vertical plane parallel to the optical axis (Ax), a rear focal point (F) of a projection lens (18) positions between a front end edge (20Aa1) and a rear end edge (20Aa2) of the upper end face (20Aa), and the front end edge (20Aa1) passes through the optical axis (Ax).
EP10156398.9A 2009-03-12 2010-03-12 Vehicle headlamp Not-in-force EP2228593B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009060328A JP5618312B2 (en) 2009-03-12 2009-03-12 Vehicle headlamp

Publications (3)

Publication Number Publication Date
EP2228593A2 EP2228593A2 (en) 2010-09-15
EP2228593A3 true EP2228593A3 (en) 2015-03-11
EP2228593B1 EP2228593B1 (en) 2016-07-27

Family

ID=42286992

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10156398.9A Not-in-force EP2228593B1 (en) 2009-03-12 2010-03-12 Vehicle headlamp

Country Status (2)

Country Link
EP (1) EP2228593B1 (en)
JP (1) JP5618312B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6154169B2 (en) * 2013-03-29 2017-06-28 株式会社小糸製作所 Vehicle headlamp
TWI600857B (en) * 2017-02-09 2017-10-01 Light-shielding module that can enhance the light intensity of the car

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10340961A1 (en) * 2003-09-05 2005-03-31 Hella Kgaa Hueck & Co. Headlights for vehicles
US20060164852A1 (en) * 2005-01-24 2006-07-27 Koito Manufacturing Co., Ltd. Vehicular headlamp
JP2008034182A (en) * 2006-07-27 2008-02-14 Ichikoh Ind Ltd Headlamp for vehicle
EP2006605A1 (en) * 2007-06-18 2008-12-24 Valeo Vision Vehicle headlamp
EP2199664A1 (en) * 2008-12-19 2010-06-23 Valeo Vision Lighting device for vehicle projector, allowing a pluratity of lighting functions or a variable function with only one light source

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62195802A (en) 1986-02-21 1987-08-28 市光工業株式会社 Projector type head lamp
JPH0566806U (en) 1992-02-12 1993-09-03 スタンレー電気株式会社 Projector headlamp
JP3967153B2 (en) 2002-03-04 2007-08-29 株式会社小糸製作所 Vehicle headlamp
JP2006339008A (en) * 2005-06-01 2006-12-14 Ichikoh Ind Ltd Vehicle lamp
JP4666266B2 (en) * 2006-11-16 2011-04-06 スタンレー電気株式会社 Vehicle headlamp

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10340961A1 (en) * 2003-09-05 2005-03-31 Hella Kgaa Hueck & Co. Headlights for vehicles
US20060164852A1 (en) * 2005-01-24 2006-07-27 Koito Manufacturing Co., Ltd. Vehicular headlamp
JP2008034182A (en) * 2006-07-27 2008-02-14 Ichikoh Ind Ltd Headlamp for vehicle
EP2006605A1 (en) * 2007-06-18 2008-12-24 Valeo Vision Vehicle headlamp
EP2199664A1 (en) * 2008-12-19 2010-06-23 Valeo Vision Lighting device for vehicle projector, allowing a pluratity of lighting functions or a variable function with only one light source

Also Published As

Publication number Publication date
EP2228593B1 (en) 2016-07-27
JP5618312B2 (en) 2014-11-05
EP2228593A2 (en) 2010-09-15
JP2010218689A (en) 2010-09-30

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