GB399880A - Improvements in and connected with lamp reflectors - Google Patents
Improvements in and connected with lamp reflectorsInfo
- Publication number
- GB399880A GB399880A GB1094932A GB1094932A GB399880A GB 399880 A GB399880 A GB 399880A GB 1094932 A GB1094932 A GB 1094932A GB 1094932 A GB1094932 A GB 1094932A GB 399880 A GB399880 A GB 399880A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reflector
- elliptical
- section
- globe
- focal point
- 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
- F21V7/04—Optical design
- F21V7/09—Optical design with a combination of different curvatures
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Optical Elements Other Than Lenses (AREA)
- Compounds Of Unknown Constitution (AREA)
Abstract
399,880. Reflectors; globes. CURTIS LIGHTING-EUROPE SOC. ANON., 151, Longue Rue de l'Escaut, Hemixem, and BREIL, C., 24, Avenue Helene, Antwerp, both in Belgium. April 16, 1932, No. 10949. [Class 75 (ii).] A reflector a for illuminating a relatively large area is wholly or partly elliptical in cross section with the upper focal point x common to all sections coinciding with the source of light and the lower focal point z of any one section b being below and adjacent to the bottom or outer edge d of the opposite side of the reflector. It may be made of silvered or prismatic glass or of polished metal and may be used in combination with a diffusing or refracting globe g which may be formed at its upper end with a clear glass annulus, preferably of heat-resisting glass, or may be supported below the reflector so as to leave an annular air-gap e. The reflector, with or without the globe, may be in the form of a surface of revolution about an axis y-y, or it may comprise two or more similar or dissimilar parts arranged symmetrically or asymmetrically about the axis, and each part may be generated by movement of the elliptical section along a circular, elliptical, or other curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1094932A GB399880A (en) | 1932-04-16 | 1932-04-16 | Improvements in and connected with lamp reflectors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1094932A GB399880A (en) | 1932-04-16 | 1932-04-16 | Improvements in and connected with lamp reflectors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB399880A true GB399880A (en) | 1933-10-16 |
Family
ID=9977255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1094932A Expired GB399880A (en) | 1932-04-16 | 1932-04-16 | Improvements in and connected with lamp reflectors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB399880A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2538080A1 (en) * | 1982-12-16 | 1984-06-22 | Trilux Lenze Gmbh & Co Kg | Mirror screen for light |
| EP0430776A1 (en) * | 1989-11-27 | 1991-06-05 | MALIFAUD, Pierre | Radiation reflecting mirror, particularly for lighting fixtures |
-
1932
- 1932-04-16 GB GB1094932A patent/GB399880A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2538080A1 (en) * | 1982-12-16 | 1984-06-22 | Trilux Lenze Gmbh & Co Kg | Mirror screen for light |
| EP0430776A1 (en) * | 1989-11-27 | 1991-06-05 | MALIFAUD, Pierre | Radiation reflecting mirror, particularly for lighting fixtures |
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