JPS4862277A - - Google Patents
Info
- Publication number
- JPS4862277A JPS4862277A JP47046848A JP4684872A JPS4862277A JP S4862277 A JPS4862277 A JP S4862277A JP 47046848 A JP47046848 A JP 47046848A JP 4684872 A JP4684872 A JP 4684872A JP S4862277 A JPS4862277 A JP S4862277A
- Authority
- JP
- Japan
- 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
- F21V5/04—Refractors for light sources of lens shape
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Optical Elements Other Than Lenses (AREA)
- Overhead Projectors And Projection Screens (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US20008471A | 1971-11-18 | 1971-11-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4862277A true JPS4862277A (enExample) | 1973-08-30 |
| JPS5123117B2 JPS5123117B2 (enExample) | 1976-07-14 |
Family
ID=22740258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP47046848A Expired JPS5123117B2 (enExample) | 1971-11-18 | 1972-05-11 |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US3763369A (enExample) |
| JP (1) | JPS5123117B2 (enExample) |
| AU (1) | AU459522B2 (enExample) |
| CA (1) | CA974215A (enExample) |
| DE (1) | DE2225969C2 (enExample) |
| ES (1) | ES402645A1 (enExample) |
| FR (1) | FR2160350B1 (enExample) |
| GB (1) | GB1386323A (enExample) |
| IT (1) | IT968118B (enExample) |
| NL (1) | NL161245C (enExample) |
| SE (1) | SE377717B (enExample) |
| ZA (1) | ZA723238B (enExample) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4173778A (en) * | 1976-07-28 | 1979-11-06 | Optical Coating Laboratory, Inc. | Lighting fixtures and glass enclosure having high angle anti-reflection coating |
| DE3044470A1 (de) * | 1980-11-26 | 1982-06-03 | Kernforschungsanlage Jülich GmbH, 5170 Jülich | Verfahren zur moeglichst gleichmaessigen ausleuchtung einer flaeche ausgehend von einem parallelstrahlenbuendel und vorrichtung der laser-diagnostik |
| US4703405A (en) * | 1986-07-17 | 1987-10-27 | Ian Lewin | Glare reducing lens |
| US4816976A (en) * | 1987-02-03 | 1989-03-28 | Manville Corporation | High efficiency luminaire with high angle brightness control |
| US4912613A (en) * | 1989-02-27 | 1990-03-27 | Mdt Corporation | Cover lens for light |
| DE9104316U1 (de) * | 1991-04-10 | 1991-06-13 | Zumtobel Ag, Dornbirn | Leuchtenabdeckung, insbesondere für Leuchtstofflampen |
| US20110090710A1 (en) * | 2009-10-15 | 2011-04-21 | Edmund Joseph Kelly | High Efficiency Light Pipe |
| US9765944B2 (en) | 2012-12-11 | 2017-09-19 | GE Lighting Solutions, LLC | Troffer luminaire system having total internal reflection lens |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2434049A (en) * | 1943-07-30 | 1948-01-06 | Patent License Corp | Lighting fixture |
| US2542114A (en) * | 1947-03-26 | 1951-02-20 | L D Bridge Company | Prismatic dispersion lens |
| US3234376A (en) * | 1963-02-11 | 1966-02-08 | Michael J Ceglia | Glare-free lighting fixture |
| AT247457B (de) * | 1964-03-09 | 1966-06-10 | Austrolux Wiener Elektro | Lichtstreuendes Glas oder Kunstglas für Beleuchtungszwecke |
| US3288990A (en) * | 1964-09-25 | 1966-11-29 | K S H Plastics Inc | Panel |
-
1971
- 1971-11-18 US US00200084A patent/US3763369A/en not_active Expired - Lifetime
-
1972
- 1972-05-08 IT IT12658/72A patent/IT968118B/it active
- 1972-05-10 NL NL7206297.A patent/NL161245C/xx not_active IP Right Cessation
- 1972-05-10 FR FR7216797A patent/FR2160350B1/fr not_active Expired
- 1972-05-10 SE SE7206171A patent/SE377717B/xx unknown
- 1972-05-11 GB GB2209372A patent/GB1386323A/en not_active Expired
- 1972-05-11 JP JP47046848A patent/JPS5123117B2/ja not_active Expired
- 1972-05-11 CA CA141,899A patent/CA974215A/en not_active Expired
- 1972-05-11 AU AU42190/72A patent/AU459522B2/en not_active Expired
- 1972-05-12 ZA ZA723238A patent/ZA723238B/xx unknown
- 1972-05-12 ES ES402645A patent/ES402645A1/es not_active Expired
- 1972-05-27 DE DE2225969A patent/DE2225969C2/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CA974215A (en) | 1975-09-09 |
| DE2225969A1 (de) | 1973-05-24 |
| GB1386323A (en) | 1975-03-05 |
| ES402645A1 (es) | 1975-11-16 |
| FR2160350A1 (enExample) | 1973-06-29 |
| SE377717B (enExample) | 1975-07-21 |
| DE2225969C2 (de) | 1983-09-29 |
| NL7206297A (enExample) | 1973-05-22 |
| ZA723238B (en) | 1973-02-28 |
| NL161245B (nl) | 1979-08-15 |
| AU459522B2 (en) | 1975-03-27 |
| IT968118B (it) | 1974-03-20 |
| NL161245C (nl) | 1980-01-15 |
| FR2160350B1 (enExample) | 1976-01-16 |
| US3763369A (en) | 1973-10-02 |
| AU4219072A (en) | 1973-11-15 |
| JPS5123117B2 (enExample) | 1976-07-14 |