FR2157984A1 - - Google Patents
Info
- Publication number
- FR2157984A1 FR2157984A1 FR7238036A FR7238036A FR2157984A1 FR 2157984 A1 FR2157984 A1 FR 2157984A1 FR 7238036 A FR7238036 A FR 7238036A FR 7238036 A FR7238036 A FR 7238036A FR 2157984 A1 FR2157984 A1 FR 2157984A1
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
- H04N5/7416—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
- H04N5/7425—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal the modulator being a dielectric deformable layer controlled by an electron beam, e.g. eidophor projector
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1568571A CH537129A (de) | 1971-10-27 | 1971-10-27 | Projektionsvorrichtung, insbesondere für Fernsehbilder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2157984A1 true FR2157984A1 (OSRAM) | 1973-06-08 |
| FR2157984B1 FR2157984B1 (OSRAM) | 1976-08-20 |
Family
ID=4411102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7238036A Expired FR2157984B1 (OSRAM) | 1971-10-27 | 1972-10-26 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3835346A (OSRAM) |
| JP (1) | JPS4852325A (OSRAM) |
| CH (1) | CH537129A (OSRAM) |
| DE (1) | DE2207801A1 (OSRAM) |
| FR (1) | FR2157984B1 (OSRAM) |
| GB (1) | GB1364151A (OSRAM) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4324456A (en) * | 1979-08-02 | 1982-04-13 | U.S. Philips Corporation | Electrophoretic projection display systems |
| US5521747A (en) * | 1993-02-22 | 1996-05-28 | Engle; Craig D. | Electronically addressed deformable media light modulator |
| US5521746A (en) * | 1993-02-22 | 1996-05-28 | Engle; Craig D. | Poppet valve modulator |
| JP3627252B2 (ja) * | 1994-03-30 | 2005-03-09 | ソニー株式会社 | プロジェクションテレビのレンズ組立体およびプロジェクションテレビ装置 |
| US5623361A (en) * | 1995-01-09 | 1997-04-22 | Engle; Craig D. | Enhanced wavefront phase modulator device |
| US5867301A (en) * | 1996-04-22 | 1999-02-02 | Engle; Craig D. | Phase modulating device |
| DE19624276C2 (de) * | 1996-06-18 | 1999-07-08 | Fraunhofer Ges Forschung | Phasenmodulierende Mikrostrukturen für höchstintegrierte Flächenlichtmodulatoren |
| WO2004023197A1 (en) * | 2002-09-06 | 2004-03-18 | Photonyx As | Method and device for variable optical attenuator |
| EP2322957A1 (en) | 2009-11-12 | 2011-05-18 | poLight AS | A method, device and system for reducing speckle contrast |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3238296A (en) * | 1962-03-29 | 1966-03-01 | Magnavox Co | Display system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2277009A (en) * | 1938-12-06 | 1942-03-17 | Ardenne Manfred Von | Television image projection tube |
| US3499157A (en) * | 1964-08-18 | 1970-03-03 | Nippon Electric Co | Light intensity amplifying device utilizing a semiconductor electron-sensitive variable resistance layer |
| US3708712A (en) * | 1969-09-29 | 1973-01-02 | Rca Corp | Intelligence-handling device having means for limiting induced electrostatic potential |
| US3667830A (en) * | 1970-04-08 | 1972-06-06 | Stromberg Datagraphix Inc | Display system utilizing a selectively deformable light-reflecting element |
| US3716289A (en) * | 1970-08-31 | 1973-02-13 | Texas Instruments Inc | Electro-optical display devices using smectic-nematic liquid crystal mixtures |
| US3701586A (en) * | 1971-04-21 | 1972-10-31 | George G Goetz | Light modulating deflectable membrane |
-
1971
- 1971-10-27 CH CH1568571A patent/CH537129A/de not_active IP Right Cessation
-
1972
- 1972-02-18 DE DE2207801A patent/DE2207801A1/de active Pending
- 1972-10-17 US US00298233A patent/US3835346A/en not_active Expired - Lifetime
- 1972-10-25 GB GB4931272A patent/GB1364151A/en not_active Expired
- 1972-10-26 FR FR7238036A patent/FR2157984B1/fr not_active Expired
- 1972-10-27 JP JP47107258A patent/JPS4852325A/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3238296A (en) * | 1962-03-29 | 1966-03-01 | Magnavox Co | Display system |
Also Published As
| Publication number | Publication date |
|---|---|
| US3835346A (en) | 1974-09-10 |
| JPS4852325A (OSRAM) | 1973-07-23 |
| FR2157984B1 (OSRAM) | 1976-08-20 |
| CH537129A (de) | 1973-05-15 |
| GB1364151A (en) | 1974-08-21 |
| DE2207801A1 (de) | 1973-05-03 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |