GB879150A - Lenses for vehicle lamps - Google Patents
Lenses for vehicle lampsInfo
- 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
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.
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)
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 |
-
1959
- 1959-06-17 GB GB20744/59A patent/GB879150A/en not_active Expired
Cited By (2)
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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