FR2141789A1 - - Google Patents
Info
- Publication number
- FR2141789A1 FR2141789A1 FR7220471A FR7220471A FR2141789A1 FR 2141789 A1 FR2141789 A1 FR 2141789A1 FR 7220471 A FR7220471 A FR 7220471A FR 7220471 A FR7220471 A FR 7220471A FR 2141789 A1 FR2141789 A1 FR 2141789A1
- Authority
- FR
- France
- 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.)
- Granted
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
- F21V5/00—Refractors for light sources
- F21V5/02—Refractors for light sources of prismatic shape
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Optical Elements Other Than Lenses (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15364271A | 1971-06-16 | 1971-06-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2141789A1 true FR2141789A1 (fr) | 1973-01-26 |
FR2141789B1 FR2141789B1 (fr) | 1977-12-23 |
Family
ID=22548093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7220471A Expired FR2141789B1 (fr) | 1971-06-16 | 1972-06-07 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3732417A (fr) |
CA (1) | CA958393A (fr) |
DE (1) | DE2229120A1 (fr) |
FR (1) | FR2141789B1 (fr) |
GB (1) | GB1391677A (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2372380A1 (fr) * | 1976-11-30 | 1978-06-23 | Barbier Benard & Turenne | Appareil d'eclairage sans ombres portees |
EP1637800A1 (fr) * | 2004-09-21 | 2006-03-22 | Valeo Vision | Feu de signalisation, en particulier pour véhicule automobile |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2247672B1 (fr) * | 1973-10-12 | 1976-06-18 | Alexandre Et Co | |
US4670825A (en) * | 1985-12-31 | 1987-06-02 | Fouke Herbert A | Reflector for use in uniformly illuminating a polygonal area |
US4994945A (en) * | 1989-01-26 | 1991-02-19 | Kirschner Medical Corporation | Lamp system for operating theatres and the like |
US4937715A (en) * | 1989-01-26 | 1990-06-26 | Kirschner Medical Corporation | Lamp system for operating theatres and the like |
DE69826950T2 (de) * | 1997-09-05 | 2006-02-23 | Sharp K.K. | Dunkelfeld-Projektionsanzeigegerät |
GB2329036A (en) * | 1997-09-05 | 1999-03-10 | Sharp Kk | Optical system for redistributing optical extent and illumination source |
JP3005955B2 (ja) * | 1998-04-17 | 2000-02-07 | スタンレー電気株式会社 | 灯 具 |
US6969181B1 (en) | 2001-05-08 | 2005-11-29 | Genlyte Thomas Group Llc | Fully recessed unit equipment luminaire |
SE0201961D0 (sv) * | 2002-06-25 | 2002-06-25 | Labino Patent Ab | Belysningsarmatur |
US20050047137A1 (en) * | 2003-08-28 | 2005-03-03 | Era Optoelectronics Inc. | Cross-shaped laser rays generator with non-spherical lens |
JP3912407B2 (ja) * | 2004-12-14 | 2007-05-09 | カシオ計算機株式会社 | 光源ユニット及びプロジェクタ装置 |
GB2421584A (en) * | 2004-12-21 | 2006-06-28 | Sharp Kk | Optical device with converging and diverging elements for directing light |
JP4218649B2 (ja) * | 2005-03-07 | 2009-02-04 | カシオ計算機株式会社 | 光源ユニット及びプロジェクタ装置 |
FI20085548A0 (fi) * | 2008-06-04 | 2008-06-04 | Valopaa Oy | Laite valaistuksen suuntaamiseen ja valaistukseen |
US8098434B1 (en) | 2010-09-22 | 2012-01-17 | 3M Innovative Properties Company | Optical decollimator for daylighting systems |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3344268A (en) * | 1967-09-26 | Refractor for usb in uniformly illuminating a polygonal area | ||
US1350295A (en) * | 1919-04-18 | 1920-08-24 | Kirby Champeau Co Inc | Illuminating means |
US2124417A (en) * | 1937-06-18 | 1938-07-19 | New York World S Fair 1939 Inc | Lighting fixture |
US2366356A (en) * | 1942-10-14 | 1945-01-02 | Holophane Co Inc | Luminaire |
-
1971
- 1971-06-16 US US00153642A patent/US3732417A/en not_active Expired - Lifetime
-
1972
- 1972-05-16 GB GB2301172A patent/GB1391677A/en not_active Expired
- 1972-06-07 FR FR7220471A patent/FR2141789B1/fr not_active Expired
- 1972-06-15 DE DE19722229120 patent/DE2229120A1/de active Pending
- 1972-06-15 CA CA144,803A patent/CA958393A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2372380A1 (fr) * | 1976-11-30 | 1978-06-23 | Barbier Benard & Turenne | Appareil d'eclairage sans ombres portees |
EP1637800A1 (fr) * | 2004-09-21 | 2006-03-22 | Valeo Vision | Feu de signalisation, en particulier pour véhicule automobile |
FR2875578A1 (fr) * | 2004-09-21 | 2006-03-24 | Valeo Vision Sa | Feu de signalisation, en particulier pour vehicule automobile |
US7607810B2 (en) | 2004-09-21 | 2009-10-27 | Valeo Vision | Signalling light, in particular for an automobile |
Also Published As
Publication number | Publication date |
---|---|
CA958393A (en) | 1974-11-26 |
FR2141789B1 (fr) | 1977-12-23 |
GB1391677A (en) | 1975-04-23 |
US3732417A (en) | 1973-05-08 |
DE2229120A1 (de) | 1972-12-21 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |