JPS5734537A - Switching device of camera - Google Patents

Switching device of camera

Info

Publication number
JPS5734537A
JPS5734537A JP11002080A JP11002080A JPS5734537A JP S5734537 A JPS5734537 A JP S5734537A JP 11002080 A JP11002080 A JP 11002080A JP 11002080 A JP11002080 A JP 11002080A JP S5734537 A JPS5734537 A JP S5734537A
Authority
JP
Japan
Prior art keywords
camera
sensor
voltage
transistors
constitution
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
JP11002080A
Other languages
Japanese (ja)
Inventor
Kazunori Mizogami
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 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 Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP11002080A priority Critical patent/JPS5734537A/en
Publication of JPS5734537A publication Critical patent/JPS5734537A/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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor

Abstract

PURPOSE:To eliminate the need for switch energizing operation by providing a switch means (pyroelectric type infrared ray sensor) which is conducted according to prescribed infrared rays and transmits source voltage to the back part of a camera. CONSTITUTION:A pyroelectric type infrared ray sensor 10 is provided near the eyepiece or winding lever in the back part of a camera. Now when a photographer holds the camera or views the finder, the temp. of the sensor 10 rises and positive voltage is generated. The sensor 10 is DC-biased by a CMOS inverter 14. The voltage generated in the sensor 10 is made into positive pulses by inverters 14, 16 and these pulses are connected to the base of a transistor 18. Thereby, transistors 18, 28 and then transistors 30-1, 30-2,-30-N are conducted, and the source voltage is supplied to an exposure operation/display circuit 36. Since with such constitution the electric power source is turned on simply when the photographer holds the camera, the need for switch energizing operation is eliminated.
JP11002080A 1980-08-11 1980-08-11 Switching device of camera Pending JPS5734537A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11002080A JPS5734537A (en) 1980-08-11 1980-08-11 Switching device of camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11002080A JPS5734537A (en) 1980-08-11 1980-08-11 Switching device of camera

Publications (1)

Publication Number Publication Date
JPS5734537A true JPS5734537A (en) 1982-02-24

Family

ID=14525079

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11002080A Pending JPS5734537A (en) 1980-08-11 1980-08-11 Switching device of camera

Country Status (1)

Country Link
JP (1) JPS5734537A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS624730U (en) * 1985-06-24 1987-01-12
US5268729A (en) * 1991-03-06 1993-12-07 Olympus Optical Co., Ltd. Means for repeatedly measuring object distance responsive to pulse light reflected from an object and utilizing the measurements for photographing
CN103856195A (en) * 2012-11-29 2014-06-11 深圳市海洋王照明工程有限公司 Infrared inductive switch

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5494384A (en) * 1978-01-09 1979-07-26 Murata Manufacturing Co Infrared ray detector

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5494384A (en) * 1978-01-09 1979-07-26 Murata Manufacturing Co Infrared ray detector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS624730U (en) * 1985-06-24 1987-01-12
US5268729A (en) * 1991-03-06 1993-12-07 Olympus Optical Co., Ltd. Means for repeatedly measuring object distance responsive to pulse light reflected from an object and utilizing the measurements for photographing
CN103856195A (en) * 2012-11-29 2014-06-11 深圳市海洋王照明工程有限公司 Infrared inductive switch

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