FR1011455A - Lighting fixtures improvements - Google Patents
Lighting fixtures improvementsInfo
- Publication number
- FR1011455A FR1011455A FR1011455DA FR1011455A FR 1011455 A FR1011455 A FR 1011455A FR 1011455D A FR1011455D A FR 1011455DA FR 1011455 A FR1011455 A FR 1011455A
- Authority
- FR
- France
- Prior art keywords
- lighting fixtures
- fixtures
- lighting
- fixtures improvements
- 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
- F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Optical Elements Other Than Lenses (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1011455T | 1949-02-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1011455A true FR1011455A (en) | 1952-06-23 |
Family
ID=9569950
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1011455D Expired FR1011455A (en) | 1949-02-11 | 1949-02-11 | Lighting fixtures improvements |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH285931A (en) |
DE (1) | DE864684C (en) |
FR (1) | FR1011455A (en) |
GB (1) | GB669180A (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2717954A (en) * | 1950-08-16 | 1955-09-13 | Gen Electric | Elongated roadway luminaire |
DE1168363B (en) * | 1954-01-27 | 1964-04-23 | Gustaf Rikard Hassel | Luminaire for room and street lighting with one or more cylindrical light sources in a cylindrical mirror reflector |
US2806939A (en) * | 1955-01-14 | 1957-09-17 | Montebello Roger De | Light-box |
US2800576A (en) * | 1955-06-09 | 1957-07-23 | John C Epperson | Street lighting fixture |
DE1175626B (en) * | 1957-04-26 | 1964-08-13 | Trilux Lenze Gmbh & Co Kg | lamp |
US3679893A (en) * | 1970-09-03 | 1972-07-25 | Sylvan R Schemitz And Associat | Luminaire reflector comprising elliptical and parabolic segments |
US4089047A (en) * | 1976-04-26 | 1978-05-09 | Willy Luderitz | Trifocal mirror-reflector |
FR2396922A1 (en) * | 1977-07-08 | 1979-02-02 | Lampes Sa | OPTICAL DEVICE PROVIDING A DIRECTIVE LIGHT BEAM AND LIGHTING DEVICE INCLUDING SUCH A DEVICE |
US4229779A (en) * | 1978-05-19 | 1980-10-21 | International Telephone And Telegraph Corporation | Luminaire with arcuate reflector |
US4665895A (en) * | 1984-09-21 | 1987-05-19 | Mcdonnell Douglas Corporation | Ellipsoidal solar dish concentrator |
DE29710881U1 (en) * | 1997-06-21 | 1997-08-14 | BÄRO Bähren & Rosenkranz KG, 42799 Leichlingen | Wall washer |
DE19945692A1 (en) * | 1999-09-23 | 2001-03-29 | Lighting Innovation Ct Ag Scha | Lamp reflector, lamp and canopy for lamp for providing indirect lighting with reflector directing light away from lamp |
DE102014105675A1 (en) * | 2014-04-23 | 2015-11-12 | Krones Aktiengesellschaft | Apparatus and method for heating plastic preforms |
CN115016200B (en) * | 2022-06-10 | 2023-07-28 | 杭州海康威视数字技术股份有限公司 | Reflective light supplementing device and camera |
-
1949
- 1949-02-11 FR FR1011455D patent/FR1011455A/en not_active Expired
-
1950
- 1950-01-17 GB GB1227/50A patent/GB669180A/en not_active Expired
- 1950-01-20 CH CH285931D patent/CH285931A/en unknown
- 1950-09-08 DE DEE2075A patent/DE864684C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB669180A (en) | 1952-03-26 |
CH285931A (en) | 1952-09-30 |
DE864684C (en) | 1953-01-26 |
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