FR2300352A1 - Appareil pour l'examen de films reduits - Google Patents
Appareil pour l'examen de films reduitsInfo
- Publication number
- FR2300352A1 FR2300352A1 FR7603174A FR7603174A FR2300352A1 FR 2300352 A1 FR2300352 A1 FR 2300352A1 FR 7603174 A FR7603174 A FR 7603174A FR 7603174 A FR7603174 A FR 7603174A FR 2300352 A1 FR2300352 A1 FR 2300352A1
- Authority
- FR
- France
- Prior art keywords
- light path
- projected image
- lens
- projector
- narrow gauge
- 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.)
- Granted
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
- G03B21/10—Projectors with built-in or built-on screen
-
- 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
- G03B41/00—Special techniques not covered by groups G03B31/00 - G03B39/00; Apparatus therefor
- G03B41/02—Special techniques not covered by groups G03B31/00 - G03B39/00; Apparatus therefor using non-intermittently running film
- G03B41/04—Special techniques not covered by groups G03B31/00 - G03B39/00; Apparatus therefor using non-intermittently running film with optical compensator
- G03B41/08—Special techniques not covered by groups G03B31/00 - G03B39/00; Apparatus therefor using non-intermittently running film with optical compensator with rotating transmitting member
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
- Overhead Projectors And Projection Screens (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752504913 DE2504913C3 (de) | 1975-02-06 | 1975-02-06 | Vorrichtung zum Betrachten von Schmalfilmen |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2300352A1 true FR2300352A1 (fr) | 1976-09-03 |
FR2300352B1 FR2300352B1 (fr) | 1980-04-25 |
Family
ID=5938204
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7603174A Granted FR2300352A1 (fr) | 1975-02-06 | 1976-02-05 | Appareil pour l'examen de films reduits |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS51106435A (fr) |
DE (1) | DE2504913C3 (fr) |
ES (1) | ES444923A1 (fr) |
FR (1) | FR2300352A1 (fr) |
IE (1) | IE43781B1 (fr) |
IT (1) | IT1056609B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0170370A1 (fr) * | 1984-06-06 | 1986-02-05 | Minnesota Mining And Manufacturing Company | Rétroprojecteur à double grossisement |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1636646A2 (fr) * | 2003-06-12 | 2006-03-22 | Koninklijke Philips Electronics N.V. | Dispositif de projection d'images sur differentes surfaces de projection |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2729141A (en) * | 1953-05-11 | 1956-01-03 | Joseph B Walker | Image superimposition projection devices |
US3178996A (en) * | 1961-02-10 | 1965-04-20 | Evan J Anton | Optical projection system with negative diopter magnifying lens |
US3834798A (en) * | 1972-12-20 | 1974-09-10 | W Goddard | Viewing screen for motion picture projectors |
-
1975
- 1975-02-06 DE DE19752504913 patent/DE2504913C3/de not_active Expired
-
1976
- 1976-02-04 IT IT1245376A patent/IT1056609B/it active
- 1976-02-05 FR FR7603174A patent/FR2300352A1/fr active Granted
- 1976-02-05 ES ES444923A patent/ES444923A1/es not_active Expired
- 1976-02-06 JP JP1216476A patent/JPS51106435A/ja active Pending
- 1976-02-06 IE IE24376A patent/IE43781B1/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0170370A1 (fr) * | 1984-06-06 | 1986-02-05 | Minnesota Mining And Manufacturing Company | Rétroprojecteur à double grossisement |
Also Published As
Publication number | Publication date |
---|---|
DE2504913B2 (de) | 1980-06-26 |
DE2504913A1 (de) | 1976-08-19 |
JPS51106435A (ja) | 1976-09-21 |
IT1056609B (it) | 1982-02-20 |
IE43781B1 (en) | 1981-05-20 |
IE43781L (en) | 1976-08-06 |
DE2504913C3 (de) | 1981-03-12 |
FR2300352B1 (fr) | 1980-04-25 |
ES444923A1 (es) | 1977-05-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |