[go: up one dir, main page]

SE8405490D0 - Semi-light headlamps for motor vehicles - Google Patents

Semi-light headlamps for motor vehicles

Info

Publication number
SE8405490D0
SE8405490D0 SE8405490A SE8405490A SE8405490D0 SE 8405490 D0 SE8405490 D0 SE 8405490D0 SE 8405490 A SE8405490 A SE 8405490A SE 8405490 A SE8405490 A SE 8405490A SE 8405490 D0 SE8405490 D0 SE 8405490D0
Authority
SE
Sweden
Prior art keywords
ellipse
focal point
light
headlamp
semi
Prior art date
Application number
SE8405490A
Other languages
Swedish (sv)
Other versions
SE8405490L (en
SE448652B (en
Inventor
C Lietar
G Lindae
J-F Longchamp
P Perthus
Original Assignee
Bosch Gmbh Robert
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 Bosch Gmbh Robert filed Critical Bosch Gmbh Robert
Publication of SE8405490D0 publication Critical patent/SE8405490D0/en
Publication of SE8405490L publication Critical patent/SE8405490L/en
Publication of SE448652B publication Critical patent/SE448652B/en

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
    • F21S41/40—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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/323—Optical layout thereof the reflector having two perpendicular cross sections having regular geometrical curves of a distinct nature

Landscapes

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

Abstract

The inner focal point (23) of the vertical ellipse (22) of the reflector (10) lies in the incandescent coil (12), and the outer focal point (24) in immediate proximity to the plane of the light exit aperture. The focal length of the horizontal ellipse (32) is shorter than that of the vertical ellipse (22), and the focal point interval of the horizontal ellipse (32) greater than that of the vertical ellipse (22), by a factor of 2:1. An upper shutter (58) is displaced in the direction of the x-axis (11) relative to the shutter (53) and is not curved. A filter (60) is arranged in front of the objective (15), and both consist of pressed glass with a surface constitution producing the blurring of the light-dark limit. With the headlamp, the range and the lateral scattering of the dipped light beam are increased and the overall length of the headlamp is reduced. <IMAGE>
SE8405490A 1983-11-04 1984-11-01 Semi-light headlamps for motor vehicles SE448652B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833339879 DE3339879A1 (en) 1983-11-04 1983-11-04 HEADLIGHTS FOR LOW BEAMS OF MOTOR VEHICLES

Publications (3)

Publication Number Publication Date
SE8405490D0 true SE8405490D0 (en) 1984-11-01
SE8405490L SE8405490L (en) 1985-05-05
SE448652B SE448652B (en) 1987-03-09

Family

ID=6213431

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8405490A SE448652B (en) 1983-11-04 1984-11-01 Semi-light headlamps for motor vehicles

Country Status (4)

Country Link
DE (1) DE3339879A1 (en)
FR (1) FR2554546B1 (en)
GB (1) GB2149077B (en)
SE (1) SE448652B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3628421A1 (en) * 1986-08-21 1988-02-25 Bayerische Motoren Werke Ag HEADLIGHTS FOR MOTOR VEHICLES
JP2769259B2 (en) * 1992-01-27 1998-06-25 株式会社小糸製作所 Automotive headlamp
DE4429839B8 (en) * 1994-08-23 2007-08-02 Automotive Lighting Reutlingen Gmbh Vehicle headlights
US5461553A (en) * 1994-09-28 1995-10-24 Robert Bosch Gmbh Headlight for vehicle
DE19860669B4 (en) * 1998-12-29 2007-08-23 Automotive Lighting Reutlingen Gmbh Vehicle headlights according to the projection principle
FR2811408B1 (en) † 2000-07-07 2002-10-18 Valeo Vision ELLIPTICAL PROJECTOR IN PARTICULAR FOR IMPROVED LOW PHOTOMETRY ROAD LIGHTING
JP2002367411A (en) * 2001-06-05 2002-12-20 Koito Mfg Co Ltd Vehicle headlamp
EA009340B1 (en) 2003-07-29 2007-12-28 Турхан Алджелик Headlamp with a continuous long-distance illumination without glaring effects
CZ299345B6 (en) * 2003-10-06 2008-06-25 Visteon Global Technologies, Inc. Variable adaptive headlight system for motor vehicles
EP1902245A2 (en) 2005-04-05 2008-03-26 Turhan Alcelik A headlamp providing long-distance illumination without glaring effect
AT511760B1 (en) 2011-08-08 2013-12-15 Zizala Lichtsysteme Gmbh LED LIGHT SOURCE MODULE FOR A LED MOTOR VEHICLE HEADLIGHT AND LED MOTOR VEHICLE HEADLAMP AND HEADLAMP SYSTEM

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1476297A (en) * 1973-09-29 1977-06-10 Lucas Electrical Ltd Motor vehicle lamp assemblies
AU505317B2 (en) * 1976-08-23 1979-11-15 Thorn Electrical Industries Limited Suppression of colour fringing in lamps
DE3334459C2 (en) * 1983-09-23 1993-10-21 Bosch Gmbh Robert Low beam headlight reflector for motor vehicles

Also Published As

Publication number Publication date
DE3339879C2 (en) 1992-08-06
FR2554546A1 (en) 1985-05-10
FR2554546B1 (en) 1989-03-31
GB2149077A (en) 1985-06-05
SE8405490L (en) 1985-05-05
SE448652B (en) 1987-03-09
DE3339879A1 (en) 1985-05-15
GB8425108D0 (en) 1984-11-07
GB2149077B (en) 1987-09-23

Similar Documents

Publication Publication Date Title
US4100594A (en) Suppression of color fringing in lamps
EP0212211A3 (en) Dipped-beam headlamp with an elliptical reflector
JPH0789447B2 (en) Floodlight for car passing beam or fog light
SE8306348L (en) Car headlamps for half-light
JP2002050217A (en) head lamp
SE8405490L (en) Semi-light headlamps for motor vehicles
CA1064089A (en) Rectangular headlamp filament shield
ES279983U (en) Non dazzling vehicle headlamp.
SE8404746D0 (en) Semi-light headlamps for motor vehicles
GB2022234A (en) Vehicle lamp
US2556328A (en) Nonglare motor vehicle headlight
RU2033569C1 (en) Illuminating unit
SE8405920D0 (en) MOTOR VEHICLES
US3317772A (en) Headlight arrangement for automotive vehicles including a reflector and a light shield means
SE8206127D0 (en) BILSTRALKASTARE
FR2405425A1 (en) Headlight unit for motor vehicles - has cylindrical lens sections ensuring opposite road edge illumination
SE8405622D0 (en) Semi-light headlamps for motor vehicles
FR2362336A1 (en) Car headlamp with main beam filament at reflector focus - has cup beneath fog lamp filament and screen mounted in front of bulb by brackets
SE8100505L (en) MAIN LAMP FOR MOTOR VEHICLES
ES416367A1 (en) Improvements in the headlights for vehicle. (Machine-translation by Google Translate, not legally binding)
ES273599U (en) Dipped headlamp for vehicles
GB1235209A (en) Vehicle headlight
JPH04106802U (en) Vehicle lighting system
ES290544U (en) Projector of laminar beam particularly for vehicles automoviles (Machine-translation by Google Translate, not legally binding)
GB2085569A (en) Combined Headlamp and Sidelight for Vehicle

Legal Events

Date Code Title Description
NAL Patent in force

Ref document number: 8405490-7

Format of ref document f/p: F

NUG Patent has lapsed

Ref document number: 8405490-7

Format of ref document f/p: F