JPS55115034A - Automatic stopping system of projector - Google Patents
Automatic stopping system of projectorInfo
- Publication number
- JPS55115034A JPS55115034A JP6033079A JP6033079A JPS55115034A JP S55115034 A JPS55115034 A JP S55115034A JP 6033079 A JP6033079 A JP 6033079A JP 6033079 A JP6033079 A JP 6033079A JP S55115034 A JPS55115034 A JP S55115034A
- Authority
- JP
- Japan
- Prior art keywords
- film
- sprocket
- projector
- sensors
- counter
- 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.)
- Pending
Links
Landscapes
- Details Of Cameras Including Film Mechanisms (AREA)
Abstract
PURPOSE: To surely and automatically stop the projector at the end of projection of film by providing two film sensors on film running path.
CONSTITUTION: Film sensors 21, 22 are disposed near a sprocket 6 and a sound sprocket 13, respectively, and are connected to a microcomputer. Then, at the time when the film 4 from a feed reel 2 is taken up on a take-up reel 3 by way of the sprocket 6, loop setter 7, gate part 8, aperture part 9, recorder-reproducer 11, constant speed feed mechanism 12, sound sprocket 13, etc., a counter 24 counts and displays the film travel amount and the films sensors 21, 22 go ON when the film 4 exists and go OFF when not. Hence, when the film sensors 21, 22 are both OFF and ten thousand place of the counter 24 is not F then it is decided as the end of projection and the projector is automatically stopped.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6033079A JPS55115034A (en) | 1979-05-18 | 1979-05-18 | Automatic stopping system of projector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6033079A JPS55115034A (en) | 1979-05-18 | 1979-05-18 | Automatic stopping system of projector |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2078379A Division JPS55113026A (en) | 1979-02-26 | 1979-02-26 | Automatic operation system of projector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55115034A true JPS55115034A (en) | 1980-09-04 |
Family
ID=13139040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6033079A Pending JPS55115034A (en) | 1979-05-18 | 1979-05-18 | Automatic stopping system of projector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55115034A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58196533A (en) * | 1982-05-13 | 1983-11-16 | Fuji Photo Optical Co Ltd | Camera having electrically driven winder for film |
-
1979
- 1979-05-18 JP JP6033079A patent/JPS55115034A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58196533A (en) * | 1982-05-13 | 1983-11-16 | Fuji Photo Optical Co Ltd | Camera having electrically driven winder for film |
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