JP3920781B2 - ファインダの投光装置 - Google Patents

ファインダの投光装置 Download PDF

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Publication number
JP3920781B2
JP3920781B2 JP2003009650A JP2003009650A JP3920781B2 JP 3920781 B2 JP3920781 B2 JP 3920781B2 JP 2003009650 A JP2003009650 A JP 2003009650A JP 2003009650 A JP2003009650 A JP 2003009650A JP 3920781 B2 JP3920781 B2 JP 3920781B2
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JP
Japan
Prior art keywords
light
prism
optical system
finder
plate
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
JP2003009650A
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English (en)
Japanese (ja)
Other versions
JP2004219915A5 (enExample
JP2004219915A (ja
Inventor
英文 金子
哲也 阿部
Original Assignee
ペンタックス株式会社
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 ペンタックス株式会社 filed Critical ペンタックス株式会社
Priority to JP2003009650A priority Critical patent/JP3920781B2/ja
Priority to US10/759,019 priority patent/US6879781B2/en
Publication of JP2004219915A publication Critical patent/JP2004219915A/ja
Publication of JP2004219915A5 publication Critical patent/JP2004219915A5/ja
Application granted granted Critical
Publication of JP3920781B2 publication Critical patent/JP3920781B2/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
    • G03B13/18—Focusing aids
    • G03B13/24—Focusing screens
    • 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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/18—Signals indicating condition of a camera member or suitability of light
    • G03B17/20—Signals indicating condition of a camera member or suitability of light visible in viewfinder

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Viewfinders (AREA)
  • Indication In Cameras, And Counting Of Exposures (AREA)
  • Automatic Focus Adjustment (AREA)
  • Focusing (AREA)
JP2003009650A 2003-01-17 2003-01-17 ファインダの投光装置 Expired - Fee Related JP3920781B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2003009650A JP3920781B2 (ja) 2003-01-17 2003-01-17 ファインダの投光装置
US10/759,019 US6879781B2 (en) 2003-01-17 2004-01-20 Light-projecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003009650A JP3920781B2 (ja) 2003-01-17 2003-01-17 ファインダの投光装置

Publications (3)

Publication Number Publication Date
JP2004219915A JP2004219915A (ja) 2004-08-05
JP2004219915A5 JP2004219915A5 (enExample) 2005-10-27
JP3920781B2 true JP3920781B2 (ja) 2007-05-30

Family

ID=32844077

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003009650A Expired - Fee Related JP3920781B2 (ja) 2003-01-17 2003-01-17 ファインダの投光装置

Country Status (2)

Country Link
US (1) US6879781B2 (enExample)
JP (1) JP3920781B2 (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6941069B2 (en) * 2003-01-17 2005-09-06 Pentax Corporation Light-projecting device
JP4717377B2 (ja) * 2004-05-31 2011-07-06 キヤノン株式会社 一眼レフカメラのファインダー内表示装置
KR100815340B1 (ko) 2005-05-31 2008-03-19 삼성전기주식회사 균일성 구현을 위한 다각 반사 조명 장치
JP2006337782A (ja) * 2005-06-03 2006-12-14 Pentax Corp 一眼レフカメラのファインダ装置
JP2008009223A (ja) * 2006-06-30 2008-01-17 Pentax Corp 投影光学系および投影装置
US9442345B2 (en) * 2014-10-22 2016-09-13 Canon Kabushiki Kaisha Camera having a display member

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5132460Y2 (enExample) 1971-08-09 1976-08-13
JPS547461B2 (enExample) 1974-05-30 1979-04-06
JPS5699332A (en) * 1980-01-10 1981-08-10 Canon Inc Information mark display device
JPS59119436U (ja) 1983-01-29 1984-08-11 旭光学工業株式会社 カメラのフアインダ内情報表示装置
JP2893861B2 (ja) 1990-05-15 1999-05-24 ミノルタ株式会社 画像形成装置
JPH06102574A (ja) * 1992-09-18 1994-04-15 Minolta Camera Co Ltd ファインダー内表示装置
JPH07181583A (ja) * 1993-12-24 1995-07-21 Asahi Optical Co Ltd 一眼レフカメラのファインダ内表示装置
JPH07191382A (ja) 1993-12-27 1995-07-28 Asahi Optical Co Ltd カメラのファインダー装置
US5734428A (en) * 1994-03-04 1998-03-31 Canon Kabushiki Kaisha Camera with superimpose display device
JP3676524B2 (ja) 1996-10-25 2005-07-27 ペンタックス株式会社 プリズム
US6377409B2 (en) 1996-12-04 2002-04-23 Asahi Kogaku Kogyo Kabushiki Kaisha Prism and viewing optical system using the prism
JPH11338038A (ja) 1998-05-26 1999-12-10 Asahi Optical Co Ltd ファインダー内表示装置
US6714244B1 (en) 1998-08-13 2004-03-30 Pentax Corporation Internal indication of a viewfinder of a camera
US6292629B1 (en) 1998-12-24 2001-09-18 Asahi Kogaku Kogyo Kabushiki Kaisha Indicator provided within finder for single lens reflex camera
JP2002268128A (ja) 2001-03-07 2002-09-18 Minolta Co Ltd ファインダー画面内表示装置
JP4083419B2 (ja) 2001-12-04 2008-04-30 ペンタックス株式会社 正立観察光学系

Also Published As

Publication number Publication date
US6879781B2 (en) 2005-04-12
US20040160579A1 (en) 2004-08-19
JP2004219915A (ja) 2004-08-05

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