JPS57116332A - Reader for signal perforation of film - Google Patents

Reader for signal perforation of film

Info

Publication number
JPS57116332A
JPS57116332A JP56003650A JP365081A JPS57116332A JP S57116332 A JPS57116332 A JP S57116332A JP 56003650 A JP56003650 A JP 56003650A JP 365081 A JP365081 A JP 365081A JP S57116332 A JPS57116332 A JP S57116332A
Authority
JP
Japan
Prior art keywords
film
perforations
signal
lever
reader
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
Application number
JP56003650A
Other languages
Japanese (ja)
Inventor
Nobuyuki Taniguchi
Kiyoshi Seigenji
Toshiaki Matsumoto
Takeo Takarada
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.)
Minolta Co Ltd
Original Assignee
Minolta 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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP56003650A priority Critical patent/JPS57116332A/en
Publication of JPS57116332A publication Critical patent/JPS57116332A/en
Pending legal-status Critical Current

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
    • G03B1/00—Film strip handling
    • G03B1/60—Measuring or indicating length of the used or unused film; Counting number of exposures

Abstract

PURPOSE:To read signal perforations of a film accurately by detecting the position of the reference part of the film and by moving a detection part for the signal perforations in accordance with the detection result. CONSTITUTION:A lever 7 is energized downward by a pin 10 and a spring 9, and a roller 11 fitted to the lever comes into contact with the upper end of a film F. The lower end of the film is in contact with rollers 13 and 15. Further, a photocoupler FC is provided atop of the lever 7. Therefore, the photocoupler FM is invariably at a constant distance from the upper end of the film F and thus positioned where signal perforations SH are detected securely. Consequently, the signal perforations SH are read accurately. As the reference part of the film, the upper end or lower end position of the perforations is used.
JP56003650A 1981-01-12 1981-01-12 Reader for signal perforation of film Pending JPS57116332A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56003650A JPS57116332A (en) 1981-01-12 1981-01-12 Reader for signal perforation of film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56003650A JPS57116332A (en) 1981-01-12 1981-01-12 Reader for signal perforation of film

Publications (1)

Publication Number Publication Date
JPS57116332A true JPS57116332A (en) 1982-07-20

Family

ID=11563346

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56003650A Pending JPS57116332A (en) 1981-01-12 1981-01-12 Reader for signal perforation of film

Country Status (1)

Country Link
JP (1) JPS57116332A (en)

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