JPS57185028A - Motor-driven film advancing device of camera - Google Patents
Motor-driven film advancing device of cameraInfo
- Publication number
- JPS57185028A JPS57185028A JP56069909A JP6990981A JPS57185028A JP S57185028 A JPS57185028 A JP S57185028A JP 56069909 A JP56069909 A JP 56069909A JP 6990981 A JP6990981 A JP 6990981A JP S57185028 A JPS57185028 A JP S57185028A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- turned
- film
- camera
- film advancing
- 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
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
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/42—Interlocking between shutter operation and advance of film or change of plate or cut-film
- G03B17/425—Interlocking between shutter operation and advance of film or change of plate or cut-film motor drive cameras
-
- 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
- G03B2217/00—Details of cameras or camera bodies; Accessories therefor
- G03B2217/005—Blur detection
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Cameras Including Film Mechanisms (AREA)
- Control Of Direct Current Motors (AREA)
Abstract
PURPOSE:To prevent blur in continuous shooting time, by eliminating the residual torque which is caused by the reversing of a motor when a film is advanced and avoiding the force which is applied to the film in the take-up direction. CONSTITUTION:The diagram shows a motor-driven film advancing circuit and a camera circuit. When releasing is over, a switch 27 is switched to (b). Thus a transistor TR9 is turned on, and a capacitor 21 is charged. The potential of the capacitor 21 is discharged, and as a result, the TR9 is turned off. Thus a TR10 is on and a TR12 is off, and at the same time a TR11 is turned on. Thus a motor 13 advances a film. When the film advancing is over, a switch 27 is changed to (a). Then a circuit of a TR10, a resistance 18 and a diode 7 is also turned off, and as a result the TR9 is turned on. In this case, the TR10 is off, the TR12 is on and the TR11 is off, respectively. Thus the motor 13 is reversed to eliminate the residual torque.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56069909A JPS57185028A (en) | 1981-05-08 | 1981-05-08 | Motor-driven film advancing device of camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56069909A JPS57185028A (en) | 1981-05-08 | 1981-05-08 | Motor-driven film advancing device of camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57185028A true JPS57185028A (en) | 1982-11-15 |
Family
ID=13416290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56069909A Pending JPS57185028A (en) | 1981-05-08 | 1981-05-08 | Motor-driven film advancing device of camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57185028A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5345286A (en) * | 1993-05-11 | 1994-09-06 | Eastman Kodak Company | Method and apparatus for controlling film drive |
-
1981
- 1981-05-08 JP JP56069909A patent/JPS57185028A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5345286A (en) * | 1993-05-11 | 1994-09-06 | Eastman Kodak Company | Method and apparatus for controlling film drive |
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