GB2006945A - Diffusing lens for vehicle headlamp - Google Patents

Diffusing lens for vehicle headlamp

Info

Publication number
GB2006945A
GB2006945A GB7842331A GB7842331A GB2006945A GB 2006945 A GB2006945 A GB 2006945A GB 7842331 A GB7842331 A GB 7842331A GB 7842331 A GB7842331 A GB 7842331A GB 2006945 A GB2006945 A GB 2006945A
Authority
GB
United Kingdom
Prior art keywords
vehicle headlamp
diffusing lens
surface layer
lens
hardening
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Withdrawn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
GB7842331A
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.)
Robert Bosch 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
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB2006945A publication Critical patent/GB2006945A/en
Withdrawn legal-status Critical Current

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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • 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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/62—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution for adaptation between right-hand and left-hand traffic

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)

Abstract

A diffusing lens for a vehicle headlamp is made of plastics material and has at least its photometrically effective outer surface layer formed such as to have a non-vitreous quality. The surface layer may be formed by out-diffusion, coating by various methods, or hardening and is intended to increase the durability of the lens.
GB7842331A 1977-10-28 1978-10-27 Diffusing lens for vehicle headlamp Withdrawn GB2006945A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772748358 DE2748358A1 (en) 1977-10-28 1977-10-28 Diffuser for headlights of vehicles

Publications (1)

Publication Number Publication Date
GB2006945A true GB2006945A (en) 1979-05-10

Family

ID=6022487

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7842331A Withdrawn GB2006945A (en) 1977-10-28 1978-10-27 Diffusing lens for vehicle headlamp

Country Status (4)

Country Link
DE (1) DE2748358A1 (en)
FR (1) FR2407425A1 (en)
GB (1) GB2006945A (en)
IT (1) IT1099975B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2344876A (en) * 1998-12-17 2000-06-21 Koito Mfg Co Ltd Vehicle lamp having a lens with an antifogging and a hard coating
US6431735B2 (en) 1999-06-17 2002-08-13 Valeo Sylvania L L.C. Vehicle headlamp, lamp lens and method for producing a lamp lens
GB2392232A (en) * 2002-07-19 2004-02-25 Carruthers Elaine Valerie Headlight converters
ES2710076A1 (en) * 2017-10-17 2019-04-22 Seat Sa Exterior lighting device for a vehicle, and manufacturing method (Machine-translation by Google Translate, not legally binding)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3843522A1 (en) * 1988-12-23 1990-07-05 Daimler Benz Ag Illuminating device, in particular for motor vehicles
DE4408230A1 (en) 1994-03-11 1995-09-14 Bosch Gmbh Robert Transparent plastic lens for car headlights etc.
DE19925049C5 (en) * 1999-06-01 2005-12-22 Hella Kgaa Hueck & Co. Plastic disc of motor vehicle headlights or motor vehicle lights and method for their production

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB780259A (en) * 1954-06-11 1957-07-31 Hans Ekkehard Hausdorff Anti-dazzle headlamp for vehicles
GB1161759A (en) * 1965-11-22 1969-08-20 Cibie Projecteurs Direction Indicator Lights
JPS5017871B2 (en) * 1971-12-06 1975-06-24

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2344876A (en) * 1998-12-17 2000-06-21 Koito Mfg Co Ltd Vehicle lamp having a lens with an antifogging and a hard coating
GB2344876B (en) * 1998-12-17 2001-08-08 Koito Mfg Co Ltd Vehicle lamp
US6435702B1 (en) 1998-12-17 2002-08-20 Koito Manufacturing Co., Inc. Vehicle lamp lens with surface treatments
US6431735B2 (en) 1999-06-17 2002-08-13 Valeo Sylvania L L.C. Vehicle headlamp, lamp lens and method for producing a lamp lens
GB2392232A (en) * 2002-07-19 2004-02-25 Carruthers Elaine Valerie Headlight converters
GB2392232B (en) * 2002-07-19 2005-09-07 Carruthers Elaine Valerie Headlamp converter
ES2710076A1 (en) * 2017-10-17 2019-04-22 Seat Sa Exterior lighting device for a vehicle, and manufacturing method (Machine-translation by Google Translate, not legally binding)

Also Published As

Publication number Publication date
IT7829144A0 (en) 1978-10-26
FR2407425A1 (en) 1979-05-25
DE2748358A1 (en) 1979-05-03
IT1099975B (en) 1985-09-28

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)