FR2151328A5 - - Google Patents
Info
- Publication number
- FR2151328A5 FR2151328A5 FR7229808A FR7229808A FR2151328A5 FR 2151328 A5 FR2151328 A5 FR 2151328A5 FR 7229808 A FR7229808 A FR 7229808A FR 7229808 A FR7229808 A FR 7229808A FR 2151328 A5 FR2151328 A5 FR 2151328A5
- 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
- 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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
- G03B21/62—Translucent screens
- G03B21/625—Lenticular translucent screens
-
- 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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/10—Projectors with built-in or built-on screen
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
- Overhead Projectors And Projection Screens (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17446171A | 1971-08-24 | 1971-08-24 | |
US17437371A | 1971-08-24 | 1971-08-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2151328A5 true FR2151328A5 (fr) | 1973-04-13 |
Family
ID=26870149
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7229808A Expired FR2151328A5 (fr) | 1971-08-24 | 1972-08-21 |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS4830929A (fr) |
DE (1) | DE2238466A1 (fr) |
FR (1) | FR2151328A5 (fr) |
GB (1) | GB1366416A (fr) |
IT (1) | IT962203B (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2375618A1 (fr) * | 1976-12-23 | 1978-07-21 | Polaroid Corp | Ecran de visionnement arriere pour dispositif de projection |
FR2415821A1 (fr) * | 1978-01-30 | 1979-08-24 | Gaf Corp | Visionneuse portative pour films cinematographiques |
FR2517083A1 (fr) * | 1981-11-26 | 1983-05-27 | Sony Corp | Appareil de retroprojection |
WO1983002170A1 (fr) * | 1981-12-18 | 1983-06-23 | Jochen Homann | Installation pour publicite et/ou information |
EP0233662A1 (fr) * | 1986-01-28 | 1987-08-26 | Koninklijke Philips Electronics N.V. | Système à projection arrière |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6347866Y2 (fr) * | 1980-02-08 | 1988-12-09 | ||
JPS5846336A (ja) * | 1981-09-14 | 1983-03-17 | Mitsubishi Rayon Co Ltd | 透過型スクリ−ン |
JPS5865427A (ja) * | 1981-10-14 | 1983-04-19 | Matsushita Electric Ind Co Ltd | スクリ−ン |
JPS5923334A (ja) * | 1982-07-29 | 1984-02-06 | Victor Co Of Japan Ltd | 透過式スクリ−ン |
JPS5995525A (ja) * | 1982-11-24 | 1984-06-01 | Mitsubishi Rayon Co Ltd | 背面投影スクリ−ン |
US5311910A (en) * | 1991-02-20 | 1994-05-17 | Kabushiki Kaisha Showa Seisakusho | Cap attachment structure for accumulator |
-
1972
- 1972-08-04 DE DE2238466A patent/DE2238466A1/de not_active Withdrawn
- 1972-08-09 GB GB3719172A patent/GB1366416A/en not_active Expired
- 1972-08-21 FR FR7229808A patent/FR2151328A5/fr not_active Expired
- 1972-08-23 IT IT52323/72A patent/IT962203B/it active
- 1972-08-24 JP JP47084175A patent/JPS4830929A/ja active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2375618A1 (fr) * | 1976-12-23 | 1978-07-21 | Polaroid Corp | Ecran de visionnement arriere pour dispositif de projection |
FR2415821A1 (fr) * | 1978-01-30 | 1979-08-24 | Gaf Corp | Visionneuse portative pour films cinematographiques |
FR2517083A1 (fr) * | 1981-11-26 | 1983-05-27 | Sony Corp | Appareil de retroprojection |
WO1983002170A1 (fr) * | 1981-12-18 | 1983-06-23 | Jochen Homann | Installation pour publicite et/ou information |
EP0082478A1 (fr) * | 1981-12-18 | 1983-06-29 | Jochen Homann | Dispositif pour la réclame et/ou l'information |
EP0233662A1 (fr) * | 1986-01-28 | 1987-08-26 | Koninklijke Philips Electronics N.V. | Système à projection arrière |
Also Published As
Publication number | Publication date |
---|---|
DE2238466A1 (de) | 1973-03-08 |
GB1366416A (en) | 1974-09-11 |
IT962203B (it) | 1973-12-20 |
JPS4830929A (fr) | 1973-04-23 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |