JPS5430822A - Focus detector - Google Patents

Focus detector

Info

Publication number
JPS5430822A
JPS5430822A JP9681577A JP9681577A JPS5430822A JP S5430822 A JPS5430822 A JP S5430822A JP 9681577 A JP9681577 A JP 9681577A JP 9681577 A JP9681577 A JP 9681577A JP S5430822 A JPS5430822 A JP S5430822A
Authority
JP
Japan
Prior art keywords
focus detector
ball
glass
focus
disposing
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
JP9681577A
Other languages
Japanese (ja)
Inventor
Toshihiro Kondo
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP9681577A priority Critical patent/JPS5430822A/en
Publication of JPS5430822A publication Critical patent/JPS5430822A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To detect the focus with a high accuracy in a relatively simple constitution by arranging many very fine glass-ball lenses parallel with the focal plane, and disposing a photo-detector behind every glass-ball.
COPYRIGHT: (C)1979,JPO&Japio
JP9681577A 1977-08-12 1977-08-12 Focus detector Pending JPS5430822A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9681577A JPS5430822A (en) 1977-08-12 1977-08-12 Focus detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9681577A JPS5430822A (en) 1977-08-12 1977-08-12 Focus detector

Publications (1)

Publication Number Publication Date
JPS5430822A true JPS5430822A (en) 1979-03-07

Family

ID=14175075

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9681577A Pending JPS5430822A (en) 1977-08-12 1977-08-12 Focus detector

Country Status (1)

Country Link
JP (1) JPS5430822A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58109341A (en) * 1981-12-24 1983-06-29 Toshiba Corp Jam detector
JPS60153256A (en) * 1984-01-20 1985-08-12 Sanyo Electric Co Ltd Jam detecting circuit of original carrying device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58109341A (en) * 1981-12-24 1983-06-29 Toshiba Corp Jam detector
JPS60153256A (en) * 1984-01-20 1985-08-12 Sanyo Electric Co Ltd Jam detecting circuit of original carrying device

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