JP4439608B2 - ファインダ光学系 - Google Patents

ファインダ光学系 Download PDF

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Publication number
JP4439608B2
JP4439608B2 JP37574298A JP37574298A JP4439608B2 JP 4439608 B2 JP4439608 B2 JP 4439608B2 JP 37574298 A JP37574298 A JP 37574298A JP 37574298 A JP37574298 A JP 37574298A JP 4439608 B2 JP4439608 B2 JP 4439608B2
Authority
JP
Japan
Prior art keywords
optical
lens
optical system
eyepiece
finder
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 - Fee Related
Application number
JP37574298A
Other languages
English (en)
Japanese (ja)
Other versions
JPH11258525A5 (enExample
JPH11258525A (ja
Inventor
慎吾 早川
博 齋藤
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 JP37574298A priority Critical patent/JP4439608B2/ja
Priority to US09/217,987 priority patent/US6144502A/en
Publication of JPH11258525A publication Critical patent/JPH11258525A/ja
Publication of JPH11258525A5 publication Critical patent/JPH11258525A5/ja
Application granted granted Critical
Publication of JP4439608B2 publication Critical patent/JP4439608B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS 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
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/02—Viewfinders
    • G03B13/06—Viewfinders with lenses with or without reflectors
    • G03B13/08—Viewfinders with lenses with or without reflectors with reflected image of frame
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS 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
    • G03B19/00—Cameras
    • G03B19/02—Still-picture cameras
    • G03B19/12—Reflex cameras with single objective and a movable reflector or a partly-transmitting mirror

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lenses (AREA)
  • Viewfinders (AREA)
JP37574298A 1997-12-24 1998-12-17 ファインダ光学系 Expired - Fee Related JP4439608B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP37574298A JP4439608B2 (ja) 1997-12-24 1998-12-17 ファインダ光学系
US09/217,987 US6144502A (en) 1997-12-24 1998-12-22 Viewfinder optical system and optical apparatus having the same

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP9-366424 1997-12-24
JP36642497 1997-12-24
JP37574298A JP4439608B2 (ja) 1997-12-24 1998-12-17 ファインダ光学系

Publications (3)

Publication Number Publication Date
JPH11258525A JPH11258525A (ja) 1999-09-24
JPH11258525A5 JPH11258525A5 (enExample) 2006-02-09
JP4439608B2 true JP4439608B2 (ja) 2010-03-24

Family

ID=26581791

Family Applications (1)

Application Number Title Priority Date Filing Date
JP37574298A Expired - Fee Related JP4439608B2 (ja) 1997-12-24 1998-12-17 ファインダ光学系

Country Status (2)

Country Link
US (1) US6144502A (enExample)
JP (1) JP4439608B2 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102906615A (zh) * 2010-05-24 2013-01-30 株式会社尼康 望远镜光学系统及设置有该望远镜光学系统的光学装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4266732B2 (ja) * 2002-08-30 2009-05-20 キヤノン株式会社 積層型回折光学素子
JP4411026B2 (ja) * 2002-08-30 2010-02-10 キヤノン株式会社 光学材料及び、光学素子、回折光学素子、積層型回折光学素子、光学系
JP4847351B2 (ja) * 2007-01-11 2011-12-28 キヤノン株式会社 回折光学素子及びそれを用いた回折格子
JP5382531B2 (ja) * 2007-12-20 2014-01-08 株式会社ニコン 接眼レンズ系、光学装置
JP5907612B2 (ja) * 2012-02-15 2016-04-26 キヤノン株式会社 接眼レンズ及びそれを有するファインダー光学系

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5119530A (en) * 1974-08-09 1976-02-16 Fuji Photo Optical Co Ltd Refuretsukusugatakamerayo fuaindaa
JP2525351B2 (ja) * 1985-08-08 1996-08-21 キヤノン株式会社 カメラ
JP2529649B2 (ja) * 1986-12-29 1996-08-28 キヤノン株式会社 測光装置
US4855780A (en) * 1987-05-22 1989-08-08 Canon Kabushiki Kaisha Photometric device for pseudo format camera
JPH0758368B2 (ja) * 1989-01-09 1995-06-21 旭光学工業株式会社 ペンタミラーを用いた一眼レフカメラのファインダー光学系
US5119124A (en) * 1990-01-23 1992-06-02 Canon Kabushiki Kaisha Camera with finder of clear display
JP2984506B2 (ja) * 1993-02-08 1999-11-29 キヤノン株式会社 ファインダー光学系
JPH06324262A (ja) * 1993-05-11 1994-11-25 Olympus Optical Co Ltd 撮像光学系
JP3623250B2 (ja) * 1993-06-23 2005-02-23 オリンパス株式会社 映像表示装置
JP2991600B2 (ja) * 1993-09-07 1999-12-20 株式会社トプコン レーザ勾配設定装置
US5446588A (en) * 1994-07-29 1995-08-29 The University Of Rochester Wide-angle eyepiece optical system employing refractive and diffractive optical elements
JPH09105863A (ja) * 1995-10-11 1997-04-22 Canon Inc 変倍ファインダー
JPH09281416A (ja) * 1996-04-16 1997-10-31 Minolta Co Ltd リレーファインダー光学系
JPH09281414A (ja) * 1996-04-16 1997-10-31 Minolta Co Ltd ファインダー光学系
JP3849129B2 (ja) * 1997-08-18 2006-11-22 株式会社ニコン ズームレンズ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102906615A (zh) * 2010-05-24 2013-01-30 株式会社尼康 望远镜光学系统及设置有该望远镜光学系统的光学装置

Also Published As

Publication number Publication date
JPH11258525A (ja) 1999-09-24
US6144502A (en) 2000-11-07

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