GB515893A - Improvements in or relating to lighting equipment such as fittings, luminairs and the like - Google Patents
Improvements in or relating to lighting equipment such as fittings, luminairs and the likeInfo
- Publication number
- GB515893A GB515893A GB1766538A GB1766538A GB515893A GB 515893 A GB515893 A GB 515893A GB 1766538 A GB1766538 A GB 1766538A GB 1766538 A GB1766538 A GB 1766538A GB 515893 A GB515893 A GB 515893A
- Authority
- GB
- United Kingdom
- Prior art keywords
- luminairs
- fittings
- relating
- lighting equipment
- 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
- F21S13/00—Non-electric lighting devices or systems employing a point-like light source; Non-electric lighting devices or systems employing a light source of unspecified shape
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
515,893. Luminairs. NORDEN, K. June 14, 1938, No. 17665. [Class 75 (ii)] Lighting fittings are so designed that the illumination from them increases from the centre out. This is effected by having interposed between the source and a secondary reflector a body such as a prismatic element r producing such distribution, The reflector, in this case, a diffusing bowl s may vary in thickness &c. so as help the effect. In some cases the ceiling may form the reflector.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1766538A GB515893A (en) | 1938-06-14 | 1938-06-14 | Improvements in or relating to lighting equipment such as fittings, luminairs and the like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1766538A GB515893A (en) | 1938-06-14 | 1938-06-14 | Improvements in or relating to lighting equipment such as fittings, luminairs and the like |
Publications (1)
Publication Number | Publication Date |
---|---|
GB515893A true GB515893A (en) | 1939-12-18 |
Family
ID=10099087
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1766538A Expired GB515893A (en) | 1938-06-14 | 1938-06-14 | Improvements in or relating to lighting equipment such as fittings, luminairs and the like |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB515893A (en) |
-
1938
- 1938-06-14 GB GB1766538A patent/GB515893A/en not_active Expired
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