GB1161790A - Improvements in or relating to Street Lighting Fittings. - Google Patents
Improvements in or relating to Street Lighting Fittings.Info
- Publication number
- GB1161790A GB1161790A GB39453/66A GB3945366A GB1161790A GB 1161790 A GB1161790 A GB 1161790A GB 39453/66 A GB39453/66 A GB 39453/66A GB 3945366 A GB3945366 A GB 3945366A GB 1161790 A GB1161790 A GB 1161790A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lamps
- lamp
- street lighting
- sept
- low pressure
- 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
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
- F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
- F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved
- F21Y2103/37—U-shaped
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2113/00—Combination of light sources
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
1,161,790. Lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 2 Sept., 1966 [7 Sept., 1965], No. 39453/66. Heading F4R. A street lighting fitting comprises a housing containing a low pressure sodium vapour discharge lamp arranged between and parallel to two low pressure mercury vapour discharge lamps, the mercury lamps having bulbs with internal reflective layers so arranged that each of them has a light distribution in planes at right angles to its axis in the form of a single elongated lobe directed towards the other lamp. The sodium lamp is a U-shaped tube having a light distribution in the form of two elongated lobes directed towards the respective mercury lamps. A flat reflector with a central diffusing section is arranged above the lamps.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL6511620A NL6511620A (en) | 1965-09-07 | 1965-09-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1161790A true GB1161790A (en) | 1969-08-20 |
Family
ID=19794068
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB39453/66A Expired GB1161790A (en) | 1965-09-07 | 1966-09-02 | Improvements in or relating to Street Lighting Fittings. |
Country Status (3)
Country | Link |
---|---|
FR (1) | FR1502780A (en) |
GB (1) | GB1161790A (en) |
NL (1) | NL6511620A (en) |
-
1965
- 1965-09-07 NL NL6511620A patent/NL6511620A/xx unknown
-
1966
- 1966-09-02 GB GB39453/66A patent/GB1161790A/en not_active Expired
- 1966-09-07 FR FR75462A patent/FR1502780A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL6511620A (en) | 1967-03-08 |
DE1497319B2 (en) | 1976-01-15 |
DE1497319A1 (en) | 1969-08-28 |
FR1502780A (en) | 1967-11-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |