FR2203530A5 - - Google Patents
Info
- Publication number
- FR2203530A5 FR2203530A5 FR7336812A FR7336812A FR2203530A5 FR 2203530 A5 FR2203530 A5 FR 2203530A5 FR 7336812 A FR7336812 A FR 7336812A FR 7336812 A FR7336812 A FR 7336812A FR 2203530 A5 FR2203530 A5 FR 2203530A5
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1313—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells specially adapted for a particular application
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
- G03B7/16—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly in accordance with both the intensity of the flash source and the distance of the flash source from the object, e.g. in accordance with the "guide number" of the flash bulb and the focusing of the camera
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US29803772A | 1972-10-16 | 1972-10-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2203530A5 true FR2203530A5 (ja) | 1974-05-10 |
Family
ID=23148749
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7336812A Expired FR2203530A5 (ja) | 1972-10-16 | 1973-10-16 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS4974933A (ja) |
DE (1) | DE2351690A1 (ja) |
FR (1) | FR2203530A5 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2601255A1 (fr) * | 1986-07-10 | 1988-01-15 | Mori Kei | Dispositif d'irradiation d'energie de rayons solaires, destine a des traitements medicaux. |
FR2605423A1 (fr) * | 1986-07-10 | 1988-04-22 | Mori Kei | Dispositif d'irradiation de rayons lumineux |
EP0578827A1 (en) * | 1992-01-30 | 1994-01-19 | Nippon Hoso Kyokai | Liquid crystal light regulating plate and illuminator including the same |
US5631665A (en) * | 1992-11-13 | 1997-05-20 | Nippon Hoso Kyokai | Liquid crystal device, driving method thereof, liquid crystal apparatus, and illumination apparatus |
-
1973
- 1973-10-15 DE DE19732351690 patent/DE2351690A1/de active Pending
- 1973-10-16 FR FR7336812A patent/FR2203530A5/fr not_active Expired
- 1973-10-16 JP JP11540473A patent/JPS4974933A/ja active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2601255A1 (fr) * | 1986-07-10 | 1988-01-15 | Mori Kei | Dispositif d'irradiation d'energie de rayons solaires, destine a des traitements medicaux. |
FR2605423A1 (fr) * | 1986-07-10 | 1988-04-22 | Mori Kei | Dispositif d'irradiation de rayons lumineux |
EP0578827A1 (en) * | 1992-01-30 | 1994-01-19 | Nippon Hoso Kyokai | Liquid crystal light regulating plate and illuminator including the same |
EP0578827A4 (en) * | 1992-01-30 | 1995-06-21 | Japan Broadcasting Corp | LIGHT VARIATOR PLATE WITH LIQUID CRYSTALS AND LIGHTING CONTAINING SUCH A PLATE. |
US5764316A (en) * | 1992-01-30 | 1998-06-09 | Nippon Hoso Kyokai | Liquid crystal dimmer plate and lighting system including the same |
US5631665A (en) * | 1992-11-13 | 1997-05-20 | Nippon Hoso Kyokai | Liquid crystal device, driving method thereof, liquid crystal apparatus, and illumination apparatus |
Also Published As
Publication number | Publication date |
---|---|
DE2351690A1 (de) | 1974-04-18 |
JPS4974933A (ja) | 1974-07-19 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |