GB730829A - Improvements in or relating to light reflectors - Google Patents
Improvements in or relating to light reflectorsInfo
- Publication number
- GB730829A GB730829A GB944553A GB944553A GB730829A GB 730829 A GB730829 A GB 730829A GB 944553 A GB944553 A GB 944553A GB 944553 A GB944553 A GB 944553A GB 730829 A GB730829 A GB 730829A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reflector
- light
- april
- polished
- bulb
- 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
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/04—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages the fastening being onto or by the light source
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
730,829. Light reflectors. FLUOREL, Ltd. April 7, 1954 [April 7, 1953], No. 9445/53. Class 75 (2). A reflector of spun aluminium polished on its inner surface and provided with spring tongues 2 for gripping an electric light bulb 4 is stepped in profile and decreases in diameter from one end to the other, the step 6 at the wider end being of curved profile to direct the light into a beam. The step 6 and the adjacent step 7 are of parabolic curvature. The tongues 2 are of heat resisting spring steel and locate the light bulb 4 so as to leave a ventilating gap 5 between the bulb and the narrow end of the reflector. The reflector is spun from a ring of pure aluminium and is polished by mechanical polishing followed by electrolytic polishing.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB944553A GB730829A (en) | 1953-04-07 | 1953-04-07 | Improvements in or relating to light reflectors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB944553A GB730829A (en) | 1953-04-07 | 1953-04-07 | Improvements in or relating to light reflectors |
Publications (1)
Publication Number | Publication Date |
---|---|
GB730829A true GB730829A (en) | 1955-06-01 |
Family
ID=9872090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB944553A Expired GB730829A (en) | 1953-04-07 | 1953-04-07 | Improvements in or relating to light reflectors |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB730829A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3257496A (en) * | 1964-01-06 | 1966-06-21 | Douglas L P Hamilton | Tap enclosure for use with underground utility cables |
EP0122983A1 (en) * | 1983-04-20 | 1984-10-31 | Beta Lighting Limited | Reflector for use with an electric lamp |
-
1953
- 1953-04-07 GB GB944553A patent/GB730829A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3257496A (en) * | 1964-01-06 | 1966-06-21 | Douglas L P Hamilton | Tap enclosure for use with underground utility cables |
EP0122983A1 (en) * | 1983-04-20 | 1984-10-31 | Beta Lighting Limited | Reflector for use with an electric lamp |
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