JPS56114935A - Finder device - Google Patents

Finder device

Info

Publication number
JPS56114935A
JPS56114935A JP1756580A JP1756580A JPS56114935A JP S56114935 A JPS56114935 A JP S56114935A JP 1756580 A JP1756580 A JP 1756580A JP 1756580 A JP1756580 A JP 1756580A JP S56114935 A JPS56114935 A JP S56114935A
Authority
JP
Japan
Prior art keywords
mirror
translucent
ghost
normal image
finder device
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
JP1756580A
Other languages
Japanese (ja)
Other versions
JPH0150891B2 (en
Inventor
Tetsuyuki Tanimoto
Yasuo Yamazaki
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.)
Minolta Co Ltd
Original Assignee
Minolta 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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP1756580A priority Critical patent/JPS56114935A/en
Publication of JPS56114935A publication Critical patent/JPS56114935A/en
Publication of JPH0150891B2 publication Critical patent/JPH0150891B2/ja
Granted legal-status Critical Current

Links

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
    • G03B13/20—Rangefinders coupled with focusing arrangements, e.g. adjustment of rangefinder automatically focusing camera

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Cameras In General (AREA)
  • Viewfinders (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

PURPOSE:To prevent a ghost from disturbing observation by slanting the opposite surface to the translucent surface of a half-mirror by a prescribed angle to the translucent surface and by superposing the ghost upon a normal image. CONSTITUTION:In the finder device with a half-mirror having a translucent surface as one surface of a flat substrate made of a transparent substance, half-mirror 10 has one surface of substrate 10a, made of a transparent substance like glass, coated with a translucent film to form transulucent surface. Further, counter surface 10c of translucent surface 10b is slanted at angle alpha satisfying formula 1. Since half-mirror is thus constituted, a ghost can be superposed upon a normal image formed by a light beam reflected by half-mirror 10.
JP1756580A 1980-02-14 1980-02-14 Finder device Granted JPS56114935A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1756580A JPS56114935A (en) 1980-02-14 1980-02-14 Finder device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1756580A JPS56114935A (en) 1980-02-14 1980-02-14 Finder device

Publications (2)

Publication Number Publication Date
JPS56114935A true JPS56114935A (en) 1981-09-09
JPH0150891B2 JPH0150891B2 (en) 1989-11-01

Family

ID=11947429

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1756580A Granted JPS56114935A (en) 1980-02-14 1980-02-14 Finder device

Country Status (1)

Country Link
JP (1) JPS56114935A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04137325U (en) * 1991-06-14 1992-12-21 スタンレー電気株式会社 display device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04137325U (en) * 1991-06-14 1992-12-21 スタンレー電気株式会社 display device

Also Published As

Publication number Publication date
JPH0150891B2 (en) 1989-11-01

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