GB820500A - Improvements in or relating to lamps - Google Patents
Improvements in or relating to lampsInfo
- Publication number
- GB820500A GB820500A GB15865/56A GB1586556A GB820500A GB 820500 A GB820500 A GB 820500A GB 15865/56 A GB15865/56 A GB 15865/56A GB 1586556 A GB1586556 A GB 1586556A GB 820500 A GB820500 A GB 820500A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lens
- plane
- plano
- composite
- reflector
- 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
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
820,500. Lamp lenses. EVER READY CO: (GREAT BRITAIN) Ltd., and WORBOYS, A. F. April 9, 1957 [May 22, 1956], No. 15865/56. Class 75(2) A composite lens for an electric lamp, especially a vehicle lamp, comprises a plano-convex lens 5, a plane lens 6 surrounding this and an outer lens 7 surrounding the plane lens and having an interior face 9 such that light striking the surface normally is internally reflected to pass radially outwards substantially in the plane of the composite lens. The plano-convex lens 5 and plane lens 6 may be formed with equally spaced concentric ridges. The plano-convex lens may be so curved as to concentrate the parallel rays of the reflector into a cone of about 20 degrees semi-angle. The composite lens may be constructed by cementing the several parts together or may be moulded in one piece out of transparent plastic material, and may be combined with a reflector in a single unit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB15865/56A GB820500A (en) | 1956-05-22 | 1956-05-22 | Improvements in or relating to lamps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB15865/56A GB820500A (en) | 1956-05-22 | 1956-05-22 | Improvements in or relating to lamps |
Publications (1)
Publication Number | Publication Date |
---|---|
GB820500A true GB820500A (en) | 1959-09-23 |
Family
ID=10066925
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB15865/56A Expired GB820500A (en) | 1956-05-22 | 1956-05-22 | Improvements in or relating to lamps |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB820500A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1179706A1 (en) * | 2000-08-07 | 2002-02-13 | CATEYE Co., Ltd. | Headlight |
WO2016050237A1 (en) * | 2014-09-29 | 2016-04-07 | Guido Kellermann Produktentwicklung & Handel E. K. | Vehicle light |
-
1956
- 1956-05-22 GB GB15865/56A patent/GB820500A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1179706A1 (en) * | 2000-08-07 | 2002-02-13 | CATEYE Co., Ltd. | Headlight |
US6527423B2 (en) | 2000-08-07 | 2003-03-04 | Cateye Co., Ltd. | Headlight |
WO2016050237A1 (en) * | 2014-09-29 | 2016-04-07 | Guido Kellermann Produktentwicklung & Handel E. K. | Vehicle light |
US10928030B2 (en) | 2014-09-29 | 2021-02-23 | Kellermann Gmbh | Vehicle light |
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