JPS546531A - Focusing device of cameras - Google Patents

Focusing device of cameras

Info

Publication number
JPS546531A
JPS546531A JP7151977A JP7151977A JPS546531A JP S546531 A JPS546531 A JP S546531A JP 7151977 A JP7151977 A JP 7151977A JP 7151977 A JP7151977 A JP 7151977A JP S546531 A JPS546531 A JP S546531A
Authority
JP
Japan
Prior art keywords
cameras
focusing device
digitsl
differences
points
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
JP7151977A
Other languages
Japanese (ja)
Inventor
Isamu Shibata
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 JP7151977A priority Critical patent/JPS546531A/en
Publication of JPS546531A publication Critical patent/JPS546531A/en
Pending legal-status Critical Current

Links

Landscapes

  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)

Abstract

PURPOSE: To make operation accurate, eliminate errors despite the presence of more than two points of the minimum values in the curve showing distance information and display focusing state by digitsl processing of the differences in electric signals from two optical systems and two sets of photoelectric transducer arrays.
COPYRIGHT: (C)1979,JPO&Japio
JP7151977A 1977-06-16 1977-06-16 Focusing device of cameras Pending JPS546531A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7151977A JPS546531A (en) 1977-06-16 1977-06-16 Focusing device of cameras

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7151977A JPS546531A (en) 1977-06-16 1977-06-16 Focusing device of cameras

Publications (1)

Publication Number Publication Date
JPS546531A true JPS546531A (en) 1979-01-18

Family

ID=13463039

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7151977A Pending JPS546531A (en) 1977-06-16 1977-06-16 Focusing device of cameras

Country Status (1)

Country Link
JP (1) JPS546531A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4374183A (en) * 1980-06-20 1983-02-15 The United States Of America As Represented By The Administrator, National Aeronautics And Space Administration Silicon-slurry/aluminide coating

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4374183A (en) * 1980-06-20 1983-02-15 The United States Of America As Represented By The Administrator, National Aeronautics And Space Administration Silicon-slurry/aluminide coating

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