GB879150A - Lenses for vehicle lamps - Google Patents

Lenses for vehicle lamps

Info

Publication number
GB879150A
GB879150A GB20744/59A GB2074459A GB879150A GB 879150 A GB879150 A GB 879150A GB 20744/59 A GB20744/59 A GB 20744/59A GB 2074459 A GB2074459 A GB 2074459A GB 879150 A GB879150 A GB 879150A
Authority
GB
United Kingdom
Prior art keywords
lens
boss
prisms
june
lenses
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
Application number
GB20744/59A
Inventor
George Joseph Whitney
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
Joseph Lucas Industries 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 Lucas Industries Ltd, Joseph Lucas Industries Ltd filed Critical Lucas Industries Ltd
Priority to GB20744/59A priority Critical patent/GB879150A/en
Publication of GB879150A publication Critical patent/GB879150A/en
Expired 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
    • 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
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders
    • 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
    • F21S41/322—Optical layout thereof the reflector using total internal reflection

Landscapes

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

Abstract

879,150. Vehicle lamp lenses. LUCAS (INDUSTRIES) Ltd., JOSEPH. June 9, 1960 [June 17, 1959], No. 20744/59. Class 75(2). A lens for vehicle lamps especially cycle lamps is moulded of translucent or transparent material and includes an outer peripheral flange 2 for mounting the lens on the body of the lamp, a frusto-conical part 1 having stepped external and internal surfaces defining a series of prisms and a central hollow boss 4 extending from the inner peripnery of tne part 1 to accommodate an electric lamp bulb 5 so that all the light falling on the part 1 from a bulb correctly positioned in the boss is reflected at the surface of the part 1 or internally totally reflected within the prisms to form an outwardly directed parallel beam. The front of the boss 4 may be closed by disc 7 shaped to form a lens producing a second beam of light parallel to the axis of the part 1.
GB20744/59A 1959-06-17 1959-06-17 Lenses for vehicle lamps Expired GB879150A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB20744/59A GB879150A (en) 1959-06-17 1959-06-17 Lenses for vehicle lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB20744/59A GB879150A (en) 1959-06-17 1959-06-17 Lenses for vehicle lamps

Publications (1)

Publication Number Publication Date
GB879150A true GB879150A (en) 1961-10-04

Family

ID=10150932

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20744/59A Expired GB879150A (en) 1959-06-17 1959-06-17 Lenses for vehicle lamps

Country Status (1)

Country Link
GB (1) GB879150A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2390673A1 (en) * 1977-05-10 1978-12-08 Fiat Spa REFLECTOR AND LAMP FOR VEHICLE
FR2440517A2 (en) * 1978-10-30 1980-05-30 Iao Industrie Riunite Spa LAMP FOR MOTOR VEHICLES

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2390673A1 (en) * 1977-05-10 1978-12-08 Fiat Spa REFLECTOR AND LAMP FOR VEHICLE
FR2440517A2 (en) * 1978-10-30 1980-05-30 Iao Industrie Riunite Spa LAMP FOR MOTOR VEHICLES

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