JPS57146237A - Warning device for film loading miss of camera - Google Patents

Warning device for film loading miss of camera

Info

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
Application number
JP3181481A
Other languages
Japanese (ja)
Other versions
JPH0766143B2 (en
Inventor
Yukio Nakajima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Corp
Original Assignee
Olympus Corp
Olympus Optical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Olympus Corp, Olympus Optical Co Ltd filed Critical Olympus Corp
Priority to JP56031814A priority Critical patent/JPH0766143B2/en
Publication of JPS57146237A publication Critical patent/JPS57146237A/en
Publication of JPH0766143B2 publication Critical patent/JPH0766143B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B17/00Details of cameras or camera bodies; Accessories therefor
    • G03B17/18Signals 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.
JP56031814A 1981-03-04 1981-03-04 Camera film loading error warning device Expired - Lifetime JPH0766143B2 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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