JPS57157224A - Display device for focusing of camera - Google Patents

Display device for focusing of camera

Info

Publication number
JPS57157224A
JPS57157224A JP56042715A JP4271581A JPS57157224A JP S57157224 A JPS57157224 A JP S57157224A JP 56042715 A JP56042715 A JP 56042715A JP 4271581 A JP4271581 A JP 4271581A JP S57157224 A JPS57157224 A JP S57157224A
Authority
JP
Japan
Prior art keywords
signal
circuit
focusing
exclusive
outputted
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
JP56042715A
Other languages
Japanese (ja)
Other versions
JPH0147763B2 (en
Inventor
Yoichi Yoshida
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 JP56042715A priority Critical patent/JPS57157224A/en
Publication of JPS57157224A publication Critical patent/JPS57157224A/en
Publication of JPH0147763B2 publication Critical patent/JPH0147763B2/ja
Granted 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Indication In Cameras, And Counting Of Exposures (AREA)
  • Automatic Focus Adjustment (AREA)
  • Focusing (AREA)

Abstract

PURPOSE:To take out easily a focusing display signal to drive a display member consisting of a sound producing element, a light emitting element, or the like, by delaying the state signal outputted from a focus detecting device in a delay circuit and comparing this delayed signal with the original state signal. CONSTITUTION:A focus detecting device 2 receives an output signal from a light receiving part 1 and inputs a state signal S1 not only to a delay circuit 5 but also to one input terminal of an exclusive OR circuit 6 as a detecting circuit. A delay signal S2 outputted from the delay circuit 5 is inputted to the other input terminal of the exclusive OR circuit 6, and a focusing display signal S3 outputted from the exclusive OR circuit 6 is inputted to a display member consisting of a sound producing element or a light emitting element to drive the display member, thus displaying the focusing state.
JP56042715A 1981-03-23 1981-03-23 Display device for focusing of camera Granted JPS57157224A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56042715A JPS57157224A (en) 1981-03-23 1981-03-23 Display device for focusing of camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56042715A JPS57157224A (en) 1981-03-23 1981-03-23 Display device for focusing of camera

Publications (2)

Publication Number Publication Date
JPS57157224A true JPS57157224A (en) 1982-09-28
JPH0147763B2 JPH0147763B2 (en) 1989-10-16

Family

ID=12643759

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56042715A Granted JPS57157224A (en) 1981-03-23 1981-03-23 Display device for focusing of camera

Country Status (1)

Country Link
JP (1) JPS57157224A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0762751A (en) * 1993-08-25 1995-03-07 Misaki:Kk Anchor bolt

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6632043B1 (en) * 2019-03-13 2020-01-15 Necプラットフォームズ株式会社 Telephone device and method of controlling telephone device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55111925A (en) * 1979-02-20 1980-08-29 Ricoh Co Ltd Focusing point signal generator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55111925A (en) * 1979-02-20 1980-08-29 Ricoh Co Ltd Focusing point signal generator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0762751A (en) * 1993-08-25 1995-03-07 Misaki:Kk Anchor bolt

Also Published As

Publication number Publication date
JPH0147763B2 (en) 1989-10-16

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