JPS5044827A - - Google Patents
Info
- Publication number
- JPS5044827A JPS5044827A JP48094275A JP9427573A JPS5044827A JP S5044827 A JPS5044827 A JP S5044827A JP 48094275 A JP48094275 A JP 48094275A JP 9427573 A JP9427573 A JP 9427573A JP S5044827 A JPS5044827 A JP S5044827A
- Authority
- JP
- Japan
- 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.)
- Pending
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
- G03B21/14—Details
- G03B21/16—Cooling; Preventing overheating
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- 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
- G03B21/14—Details
- G03B21/32—Details specially adapted for motion-picture projection
- G03B21/42—Preventing damage to film due to abnormal operation of projector
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP48094275A JPS5044827A (ja) | 1973-08-24 | 1973-08-24 | |
| US05/499,079 US3936167A (en) | 1973-08-24 | 1974-08-20 | Device for automatically controlling a protective filter in a film projector |
| DE2440505A DE2440505A1 (de) | 1973-08-24 | 1974-08-23 | Steueranordnung fuer ein schutzfilter in einem filmprojektor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP48094275A JPS5044827A (ja) | 1973-08-24 | 1973-08-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5044827A true JPS5044827A (ja) | 1975-04-22 |
Family
ID=14105700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48094275A Pending JPS5044827A (ja) | 1973-08-24 | 1973-08-24 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3936167A (ja) |
| JP (1) | JPS5044827A (ja) |
| DE (1) | DE2440505A1 (ja) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04502696A (ja) * | 1989-10-10 | 1992-05-14 | ユニシス コーポレイシヨン | 電子画像取出 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1385162A (en) * | 1917-03-27 | 1921-07-19 | American Optical Corp | Motion-picture-projection apparatus |
| US1954844A (en) * | 1930-04-23 | 1934-04-17 | Scheinfeld Morris | Motion picture projector |
-
1973
- 1973-08-24 JP JP48094275A patent/JPS5044827A/ja active Pending
-
1974
- 1974-08-20 US US05/499,079 patent/US3936167A/en not_active Expired - Lifetime
- 1974-08-23 DE DE2440505A patent/DE2440505A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3936167A (en) | 1976-02-03 |
| DE2440505A1 (de) | 1975-03-06 |