FR1420094A - Perfectionnements aux appareils de projection - Google Patents
Perfectionnements aux appareils de projectionInfo
- Publication number
- FR1420094A FR1420094A FR1109A FR1109A FR1420094A FR 1420094 A FR1420094 A FR 1420094A FR 1109 A FR1109 A FR 1109A FR 1109 A FR1109 A FR 1109A FR 1420094 A FR1420094 A FR 1420094A
- Authority
- FR
- France
- Prior art keywords
- projection devices
- projection
- devices
- 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
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Lenses (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US336505A US3328111A (en) | 1964-01-08 | 1964-01-08 | Dual purpose lens system for light projection apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1420094A true FR1420094A (fr) | 1965-12-03 |
Family
ID=23316408
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1109A Expired FR1420094A (fr) | 1964-01-08 | 1965-01-07 | Perfectionnements aux appareils de projection |
Country Status (2)
Country | Link |
---|---|
US (1) | US3328111A (fr) |
FR (1) | FR1420094A (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3432226A (en) * | 1966-07-13 | 1969-03-11 | Bausch & Lomb | Projection objective having large numerical aperture and high magnification |
JPS57101812A (en) * | 1980-12-17 | 1982-06-24 | Matsushita Electric Ind Co Ltd | Lens device for macroprojection of image |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1863099A (en) * | 1929-10-30 | 1932-06-14 | Trans Lux Daylight Picture | Projection system and projection lens system therefor |
FR84703E (fr) * | 1958-08-25 | 1965-07-12 |
-
1964
- 1964-01-08 US US336505A patent/US3328111A/en not_active Expired - Lifetime
-
1965
- 1965-01-07 FR FR1109A patent/FR1420094A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3328111A (en) | 1967-06-27 |
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