JPS55106422A - Power source switch of distance measuring circuit - Google Patents

Power source switch of distance measuring circuit

Info

Publication number
JPS55106422A
JPS55106422A JP1400579A JP1400579A JPS55106422A JP S55106422 A JPS55106422 A JP S55106422A JP 1400579 A JP1400579 A JP 1400579A JP 1400579 A JP1400579 A JP 1400579A JP S55106422 A JPS55106422 A JP S55106422A
Authority
JP
Japan
Prior art keywords
measuring circuit
distance measuring
power source
pressure
distance
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
JP1400579A
Other languages
Japanese (ja)
Inventor
Masamichi Furukawa
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP1400579A priority Critical patent/JPS55106422A/en
Publication of JPS55106422A publication Critical patent/JPS55106422A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To perform power source connection to the distance measuring circuit through simple operation by forming the distance ring peripheral surface of the camera by a pressure-sensitive member and operating a switching circuit by the pressure sensing signal of the pressure-sensitive material.
CONSTITUTION: A focusing lens 1 is extended from or returned into the camera body A and is operated by turning of a distance ring 2. This operation causes the focusing display signal X to be sent to the visual display lamp 31 of a distance measuring circuit 3. When the focusing is displayed, all required is to stop turning the distance ring 2. The distance measuring circuit 3 is connected to a power source E via switching circuit 4 and the input end 41 of this switching circuit 4 is connected to the pressure-sensitive member 21 of the distance ring 2. The pressure-sensitive member is formed by conductive rubber. When the distance ring is turned, it receives pressing force to considerably lower resistance value and therefore the power source may be connected to the distance measuring circuit.
COPYRIGHT: (C)1980,JPO&Japio
JP1400579A 1979-02-09 1979-02-09 Power source switch of distance measuring circuit Pending JPS55106422A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1400579A JPS55106422A (en) 1979-02-09 1979-02-09 Power source switch of distance measuring circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1400579A JPS55106422A (en) 1979-02-09 1979-02-09 Power source switch of distance measuring circuit

Publications (1)

Publication Number Publication Date
JPS55106422A true JPS55106422A (en) 1980-08-15

Family

ID=11849091

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1400579A Pending JPS55106422A (en) 1979-02-09 1979-02-09 Power source switch of distance measuring circuit

Country Status (1)

Country Link
JP (1) JPS55106422A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57170107U (en) * 1981-04-21 1982-10-26
JPS6266215A (en) * 1985-09-19 1987-03-25 Mitsutoyo Mfg Corp Automatic driving type optical equipment
JPS6442639A (en) * 1987-08-08 1989-02-14 Olympus Optical Co Automatic focusing system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57170107U (en) * 1981-04-21 1982-10-26
JPS6266215A (en) * 1985-09-19 1987-03-25 Mitsutoyo Mfg Corp Automatic driving type optical equipment
JPS6442639A (en) * 1987-08-08 1989-02-14 Olympus Optical Co Automatic focusing system

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