JPS55118025A - Focal plate - Google Patents

Focal plate

Info

Publication number
JPS55118025A
JPS55118025A JP2539379A JP2539379A JPS55118025A JP S55118025 A JPS55118025 A JP S55118025A JP 2539379 A JP2539379 A JP 2539379A JP 2539379 A JP2539379 A JP 2539379A JP S55118025 A JPS55118025 A JP S55118025A
Authority
JP
Japan
Prior art keywords
decision
lens
lenses
focusing
generators
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
JP2539379A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0130133B2 (OSRAM
Inventor
Yoichi Okuno
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP2539379A priority Critical patent/JPS55118025A/ja
Publication of JPS55118025A publication Critical patent/JPS55118025A/ja
Priority to US06/441,937 priority patent/US4771304A/en
Publication of JPH0130133B2 publication Critical patent/JPH0130133B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Viewfinders (AREA)
JP2539379A 1979-03-05 1979-03-05 Focal plate Granted JPS55118025A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2539379A JPS55118025A (en) 1979-03-05 1979-03-05 Focal plate
US06/441,937 US4771304A (en) 1979-03-05 1982-11-15 Focusing screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2539379A JPS55118025A (en) 1979-03-05 1979-03-05 Focal plate

Publications (2)

Publication Number Publication Date
JPS55118025A true JPS55118025A (en) 1980-09-10
JPH0130133B2 JPH0130133B2 (OSRAM) 1989-06-16

Family

ID=12164635

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2539379A Granted JPS55118025A (en) 1979-03-05 1979-03-05 Focal plate

Country Status (1)

Country Link
JP (1) JPS55118025A (OSRAM)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3339786A1 (de) * 1982-05-04 1985-05-23 Günther Dipl.-Finanzwirt 8520 Erlangen Alka Einstellscheibe mit universal-schnittbildindikator
JPS6438739A (en) * 1987-08-05 1989-02-09 Asahi Optical Co Ltd Focusing plate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3339786A1 (de) * 1982-05-04 1985-05-23 Günther Dipl.-Finanzwirt 8520 Erlangen Alka Einstellscheibe mit universal-schnittbildindikator
JPS6438739A (en) * 1987-08-05 1989-02-09 Asahi Optical Co Ltd Focusing plate

Also Published As

Publication number Publication date
JPH0130133B2 (OSRAM) 1989-06-16

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