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DE3786931D1 - HEADLIGHTS FOR MOTOR VEHICLES. - Google Patents

HEADLIGHTS FOR MOTOR VEHICLES.

Info

Publication number
DE3786931D1
DE3786931D1 DE8787101484T DE3786931T DE3786931D1 DE 3786931 D1 DE3786931 D1 DE 3786931D1 DE 8787101484 T DE8787101484 T DE 8787101484T DE 3786931 T DE3786931 T DE 3786931T DE 3786931 D1 DE3786931 D1 DE 3786931D1
Authority
DE
Germany
Prior art keywords
inches
length
conductors
reflector
headlamp
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.)
Expired - Fee Related
Application number
DE8787101484T
Other languages
German (de)
Other versions
DE3786931T2 (en
Inventor
Robert E Levin
George J English
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.)
Osram Sylvania Inc
Original Assignee
GTE Products Corp
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 GTE Products Corp filed Critical GTE Products Corp
Publication of DE3786931D1 publication Critical patent/DE3786931D1/en
Application granted granted Critical
Publication of DE3786931T2 publication Critical patent/DE3786931T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F21S41/166—Incandescent light sources, e.g. filament or halogen lamps characterised by the shape of the filament
    • 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
    • F21S41/30—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
    • F21S41/331—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of complete annular areas
    • F21S41/333—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of complete annular areas 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
    • F21S41/37—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors characterised by their material, surface treatment or coatings

Landscapes

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

Abstract

The vehicle headlamp (10) has a concave Parabolic reflecting part (13) internally coated with a reflecting material (15) such as aluminium. A projecting neck portion (17) extends to the rear apex of the reflector and is closed by a wall (21) thorugh which conductors (37) pass and are sealed. Mounted directly and electrically connected on the ends of the conductors (37) is a lighting capsule (27) with a coiled filament (31) having a length to diameter ratio of less than 2 to 1 and a length not exceeding 30 percent of the reflector focal length which is extremely short i.e. 0.2 to 0.5 inches. The headlamp is of rectangular configuration with a very small overall height of only 1.5 to 2.5 inches and a width of between 2 and 3 inches. The area of the forward rectangular face of the lamp housing is consequently only 3 to 7.5 square inches.
DE87101484T 1986-02-06 1987-02-04 Headlights for motor vehicles. Expired - Fee Related DE3786931T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82652686A 1986-02-06 1986-02-06

Publications (2)

Publication Number Publication Date
DE3786931D1 true DE3786931D1 (en) 1993-09-16
DE3786931T2 DE3786931T2 (en) 1994-02-24

Family

ID=25246781

Family Applications (1)

Application Number Title Priority Date Filing Date
DE87101484T Expired - Fee Related DE3786931T2 (en) 1986-02-06 1987-02-04 Headlights for motor vehicles.

Country Status (4)

Country Link
EP (1) EP0232843B1 (en)
JP (1) JPH0821370B2 (en)
CA (1) CA1270036C (en)
DE (1) DE3786931T2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01164661U (en) * 1988-05-10 1989-11-16
CN1203520C (en) * 1999-06-03 2005-05-25 皇家菲利浦电子有限公司 Electric lamp/reflector unit
DE10035401B4 (en) * 2000-07-19 2006-01-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Halogen bulb for motor vehicle headlights
KR101308784B1 (en) 2005-11-21 2013-09-17 엔테그리스, 아이엔씨. System and method for a pump with reduced form factor
US8083498B2 (en) 2005-12-02 2011-12-27 Entegris, Inc. System and method for position control of a mechanical piston in a pump
JP4991834B2 (en) 2009-12-17 2012-08-01 シャープ株式会社 Vehicle headlamp
JP5232815B2 (en) 2010-02-10 2013-07-10 シャープ株式会社 Vehicle headlamp
US9816677B2 (en) 2010-10-29 2017-11-14 Sharp Kabushiki Kaisha Light emitting device, vehicle headlamp, illumination device, and laser element

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH108619A (en) * 1924-02-25 1925-02-02 Lilienfeld Julius Edgar Prof D Automobile headlights.
CH310970A (en) * 1952-11-17 1955-11-15 Siemens Ag Albis Headlights.
JPS4427113Y1 (en) * 1967-07-05 1969-11-12
JPS5439151Y2 (en) * 1975-07-23 1979-11-20
HU178521B (en) * 1979-03-07 1982-05-28 Egyesuelt Izzolampa Electric reflector unit,in particular fullglass headlamp
CA1262245A (en) * 1984-04-10 1989-10-10 George J. English Lighting module for motor vehicle lighting system

Also Published As

Publication number Publication date
CA1270036A (en) 1990-06-05
CA1270036C (en) 1990-06-05
JPH0821370B2 (en) 1996-03-04
EP0232843A3 (en) 1989-06-07
JPS62254355A (en) 1987-11-06
EP0232843B1 (en) 1993-08-11
EP0232843A2 (en) 1987-08-19
DE3786931T2 (en) 1994-02-24

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee