JPH0151161B2 - - Google Patents

Info

Publication number
JPH0151161B2
JPH0151161B2 JP56064066A JP6406681A JPH0151161B2 JP H0151161 B2 JPH0151161 B2 JP H0151161B2 JP 56064066 A JP56064066 A JP 56064066A JP 6406681 A JP6406681 A JP 6406681A JP H0151161 B2 JPH0151161 B2 JP H0151161B2
Authority
JP
Japan
Prior art keywords
shielding plate
pupil
light shielding
aperture
light
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.)
Expired
Application number
JP56064066A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57179810A (en
Inventor
Yoshiaki Horikawa
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 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 Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP6406681A priority Critical patent/JPS57179810A/ja
Priority to DE3215595A priority patent/DE3215595C2/de
Priority to US06/372,374 priority patent/US4521108A/en
Publication of JPS57179810A publication Critical patent/JPS57179810A/ja
Publication of JPH0151161B2 publication Critical patent/JPH0151161B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/40—Optical focusing aids

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
JP6406681A 1981-04-30 1981-04-30 Focusing device for optical system Granted JPS57179810A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP6406681A JPS57179810A (en) 1981-04-30 1981-04-30 Focusing device for optical system
DE3215595A DE3215595C2 (de) 1981-04-30 1982-04-27 Fokussiereinrichtung
US06/372,374 US4521108A (en) 1981-04-30 1982-04-27 Focusing device for optical system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6406681A JPS57179810A (en) 1981-04-30 1981-04-30 Focusing device for optical system

Publications (2)

Publication Number Publication Date
JPS57179810A JPS57179810A (en) 1982-11-05
JPH0151161B2 true JPH0151161B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1989-11-01

Family

ID=13247344

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6406681A Granted JPS57179810A (en) 1981-04-30 1981-04-30 Focusing device for optical system

Country Status (1)

Country Link
JP (1) JPS57179810A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0614133B2 (ja) * 1983-03-07 1994-02-23 オリンパス光学工業株式会社 焦点情報検出装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5115433A (ja) * 1974-07-29 1976-02-06 Yashica Co Ltd Goshotenkenshutsusochi
JPS5319028A (en) * 1976-08-04 1978-02-21 Fuji Photo Film Co Ltd Automatic focusing device for cinecamera
JPS56101111A (en) * 1980-01-14 1981-08-13 Mamiya Koki Kk Automatic focus adjustment method

Also Published As

Publication number Publication date
JPS57179810A (en) 1982-11-05

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