JP2004219908A - 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
JP2004219908A
JP2004219908A JP2003009566A JP2003009566A JP2004219908A JP 2004219908 A JP2004219908 A JP 2004219908A JP 2003009566 A JP2003009566 A JP 2003009566A JP 2003009566 A JP2003009566 A JP 2003009566A JP 2004219908 A JP2004219908 A JP 2004219908A
Authority
JP
Japan
Prior art keywords
light
plate
optical system
roof
prism
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.)
Withdrawn
Application number
JP2003009566A
Other languages
English (en)
Japanese (ja)
Other versions
JP2004219908A5 (enExample
Inventor
Hidefumi Kaneko
英文 金子
Tetsuya Abe
哲也 阿部
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.)
Pentax Corp
Original Assignee
Pentax Corp
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 Pentax Corp filed Critical Pentax Corp
Priority to JP2003009566A priority Critical patent/JP2004219908A/ja
Priority to US10/759,021 priority patent/US6903885B2/en
Publication of JP2004219908A publication Critical patent/JP2004219908A/ja
Publication of JP2004219908A5 publication Critical patent/JP2004219908A5/ja
Withdrawn legal-status Critical Current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
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/14—Viewfinders
    • 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)
  • Astronomy & Astrophysics (AREA)
  • Optics & Photonics (AREA)
  • Viewfinders (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Automatic Focus Adjustment (AREA)
  • Indication In Cameras, And Counting Of Exposures (AREA)
JP2003009566A 2003-01-17 2003-01-17 ファインダの投光装置 Withdrawn JP2004219908A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2003009566A JP2004219908A (ja) 2003-01-17 2003-01-17 ファインダの投光装置
US10/759,021 US6903885B2 (en) 2003-01-17 2004-01-20 Light-projecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003009566A JP2004219908A (ja) 2003-01-17 2003-01-17 ファインダの投光装置

Publications (2)

Publication Number Publication Date
JP2004219908A true JP2004219908A (ja) 2004-08-05
JP2004219908A5 JP2004219908A5 (enExample) 2005-10-27

Family

ID=32820523

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003009566A Withdrawn JP2004219908A (ja) 2003-01-17 2003-01-17 ファインダの投光装置

Country Status (2)

Country Link
US (1) US6903885B2 (enExample)
JP (1) JP2004219908A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012233995A (ja) * 2011-04-28 2012-11-29 Canon Inc ファインダ内表示部品とファインダ内表示部品の製造方法

Families Citing this family (3)

* 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
JP2008009223A (ja) * 2006-06-30 2008-01-17 Pentax Corp 投影光学系および投影装置
JP6128893B2 (ja) * 2013-02-28 2017-05-17 キヤノン株式会社 光学素子成形用金型とその加工方法、及び光学素子

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US107801A (en) * 1870-09-27 Improvement in automatic gates
JPS5132460Y2 (enExample) 1971-08-09 1976-08-13
JPS547461B2 (enExample) 1974-05-30 1979-04-06
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
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
US5752090A (en) * 1995-01-13 1998-05-12 Canon Kabushiki Kaisha Optical device having a line of sight detection apparatus
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012233995A (ja) * 2011-04-28 2012-11-29 Canon Inc ファインダ内表示部品とファインダ内表示部品の製造方法

Also Published As

Publication number Publication date
US20040156116A1 (en) 2004-08-12
US6903885B2 (en) 2005-06-07

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