GB420926A - Improvements relating to reflectors for artificial lighting purposes - Google Patents
Improvements relating to reflectors for artificial lighting purposesInfo
- Publication number
- GB420926A GB420926A GB2056933A GB2056933A GB420926A GB 420926 A GB420926 A GB 420926A GB 2056933 A GB2056933 A GB 2056933A GB 2056933 A GB2056933 A GB 2056933A GB 420926 A GB420926 A GB 420926A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reflectors
- reflector
- improvements relating
- arcuate
- artificial lighting
- 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
- 239000002184 metal Substances 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000004568 cement Substances 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Optical Elements Other Than Lenses (AREA)
- Road Signs Or Road Markings (AREA)
Abstract
420,926. Reflectors. REVO ELECTRIC CO., Ltd., and REEVES, F. H., Groveland Road, Tividale, Tipton, Staffordshire. July 21, 1933, No. 20569. [Class 75 (ii)] A reflector for a street or like lamp comprises a substantially semicircular or arcuate one-piece reflecting member made of silvered or equivalently treated glass or of polished metal withamultiplicity of integral facets or planular parts a<1> the planes of which intersect one another, an intermediate layer of waterproof cement b<2>, and a semicircular or arcuate metal cover b<1>. The latter may be of skeleton formation, and the reflector may be used in combination with a substantially semicircular Fresnel or stepped lens d.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2056933A GB420926A (en) | 1933-07-21 | 1933-07-21 | Improvements relating to reflectors for artificial lighting purposes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2056933A GB420926A (en) | 1933-07-21 | 1933-07-21 | Improvements relating to reflectors for artificial lighting purposes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB420926A true GB420926A (en) | 1934-12-11 |
Family
ID=10148073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2056933A Expired GB420926A (en) | 1933-07-21 | 1933-07-21 | Improvements relating to reflectors for artificial lighting purposes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB420926A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104806977A (en) * | 2015-03-16 | 2015-07-29 | 中山大学 | Lamp reflector |
-
1933
- 1933-07-21 GB GB2056933A patent/GB420926A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104806977A (en) * | 2015-03-16 | 2015-07-29 | 中山大学 | Lamp reflector |
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