JPS57146237A - Warning device for film loading miss of camera - Google Patents
Warning device for film loading miss of cameraInfo
- Publication number
- JPS57146237A JPS57146237A JP3181481A JP3181481A JPS57146237A JP S57146237 A JPS57146237 A JP S57146237A JP 3181481 A JP3181481 A JP 3181481A JP 3181481 A JP3181481 A JP 3181481A JP S57146237 A JPS57146237 A JP S57146237A
- Authority
- JP
- Japan
- Prior art keywords
- film
- shutter
- film loading
- detecting switch
- alarm
- 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
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/18—Signals indicating condition of a camera member or suitability of light
Abstract
PURPOSE:To report the film loading miss surely with alarm, by generating an alarm on a basis of the unoperated state of a perforation detecting switch and the operated state of a shutter charge detecting switch when the film is advanced. CONSTITUTION:When a shutter release switch SW2 is interlocked with the shutter release to turn on, a frequency dividing circuit DVD is reset. Meanwhile, when shutter charging is performed in accordance with the shutter release, a shutter charge detecting switch SW4 is turned off, and an FF1 is reset for a constant time through an inverter IN1 and a monostable multivibrator MSM2. In this case, if the film loading is defective and the film cannot be advanced, a perforation detecting switch SW3 is not turned on and off, and the output is not generated from the circuit DVD, and the output of the FF1 is high-level still and is not inverted. Thus, an oscillating circuit VIV is operated for a constant time through a monostable multivibrator MSM3, and the film loading miss is reported surely with alarm by a buzzer BU.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56031814A JPH0766143B2 (en) | 1981-03-04 | 1981-03-04 | Camera film loading error warning device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56031814A JPH0766143B2 (en) | 1981-03-04 | 1981-03-04 | Camera film loading error warning device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57146237A true JPS57146237A (en) | 1982-09-09 |
JPH0766143B2 JPH0766143B2 (en) | 1995-07-19 |
Family
ID=12341553
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56031814A Expired - Lifetime JPH0766143B2 (en) | 1981-03-04 | 1981-03-04 | Camera film loading error warning device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0766143B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5449647A (en) * | 1994-01-21 | 1995-09-12 | Sandvik Ab | Silicon carbide whisker reinforced cutting tool material |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5373134A (en) * | 1976-12-10 | 1978-06-29 | Minolta Camera Co Ltd | Safety switch device for electromagnetic release camera |
JPS5438121A (en) * | 1977-09-01 | 1979-03-22 | Canon Inc | Camera with sound producing means |
JPS5517136A (en) * | 1978-07-24 | 1980-02-06 | Konishiroku Photo Ind Co Ltd | Film winding checker |
-
1981
- 1981-03-04 JP JP56031814A patent/JPH0766143B2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5373134A (en) * | 1976-12-10 | 1978-06-29 | Minolta Camera Co Ltd | Safety switch device for electromagnetic release camera |
JPS5438121A (en) * | 1977-09-01 | 1979-03-22 | Canon Inc | Camera with sound producing means |
JPS5517136A (en) * | 1978-07-24 | 1980-02-06 | Konishiroku Photo Ind Co Ltd | Film winding checker |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5449647A (en) * | 1994-01-21 | 1995-09-12 | Sandvik Ab | Silicon carbide whisker reinforced cutting tool material |
Also Published As
Publication number | Publication date |
---|---|
JPH0766143B2 (en) | 1995-07-19 |
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