JPS57195236A - Mirror mechanism of single-lens reflex camera - Google Patents

Mirror mechanism of single-lens reflex camera

Info

Publication number
JPS57195236A
JPS57195236A JP8136081A JP8136081A JPS57195236A JP S57195236 A JPS57195236 A JP S57195236A JP 8136081 A JP8136081 A JP 8136081A JP 8136081 A JP8136081 A JP 8136081A JP S57195236 A JPS57195236 A JP S57195236A
Authority
JP
Japan
Prior art keywords
mirror
sub
reflected
case
distance
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.)
Pending
Application number
JP8136081A
Other languages
Japanese (ja)
Inventor
Hideo Kajita
Takeshi Egawa
Yukio Miki
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 JP8136081A priority Critical patent/JPS57195236A/en
Publication of JPS57195236A publication Critical patent/JPS57195236A/en
Pending 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
    • 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)
  • Cameras In General (AREA)

Abstract

PURPOSE:To execute distance measurement and photometry almost simultaneously, by providing a switching device for varying a position of a sub-mirror provided on the rear of a main mirror, to the first position and the second position, and selectively guiding a light beam to a distance measuring element and a photometric element placed on the bottom part of a mirror case, by this device. CONSTITUTION:When measuring a distance, a driving device 22 remains not enegized, a folded piece 24 of a switching lever 20 is separated from a sub-mirror holder arm 4, a sub-mirror 2 is inclined about 135 deg. against the optical axis, a light beam of an object to be photographed which has passed through the photographing lens is reflected by a main mirror 9, is guided to the finder part, also a part of the luminous flux passes through the light transmitting part of the main mirror 9, and is reflected to a distance measuring element PL from the sub-mirror 2. In case of photometry, when the driving device 22 is energized, the switching lever 20 is operated, the sub-mirror 2 is turned by a prescribed angle around a pin P3, and a reflected rays from the sub-mirror 2 is made incident to a photometric element PD provided on the bottom part of a mirror case.
JP8136081A 1981-05-26 1981-05-26 Mirror mechanism of single-lens reflex camera Pending JPS57195236A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8136081A JPS57195236A (en) 1981-05-26 1981-05-26 Mirror mechanism of single-lens reflex camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8136081A JPS57195236A (en) 1981-05-26 1981-05-26 Mirror mechanism of single-lens reflex camera

Publications (1)

Publication Number Publication Date
JPS57195236A true JPS57195236A (en) 1982-11-30

Family

ID=13744170

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8136081A Pending JPS57195236A (en) 1981-05-26 1981-05-26 Mirror mechanism of single-lens reflex camera

Country Status (1)

Country Link
JP (1) JPS57195236A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5896528U (en) * 1981-12-22 1983-06-30 キヤノン株式会社 Single-lens reflex camera light shielding device
JPH01227260A (en) * 1988-03-07 1989-09-11 Sony Corp Disk device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5896528U (en) * 1981-12-22 1983-06-30 キヤノン株式会社 Single-lens reflex camera light shielding device
JPH01227260A (en) * 1988-03-07 1989-09-11 Sony Corp Disk device

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