JPS5612627A - Movable mirror light-shielding device of single-lens reflex camera - Google Patents

Movable mirror light-shielding device of single-lens reflex camera

Info

Publication number
JPS5612627A
JPS5612627A JP8911679A JP8911679A JPS5612627A JP S5612627 A JPS5612627 A JP S5612627A JP 8911679 A JP8911679 A JP 8911679A JP 8911679 A JP8911679 A JP 8911679A JP S5612627 A JPS5612627 A JP S5612627A
Authority
JP
Japan
Prior art keywords
mirror
light
shielding plate
main
lever
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
JP8911679A
Other languages
Japanese (ja)
Inventor
Masayoshi Yamamichi
Nobuo Tezuka
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 JP8911679A priority Critical patent/JPS5612627A/en
Priority to US06/166,969 priority patent/US4348088A/en
Priority to DE19803026027 priority patent/DE3026027A1/en
Publication of JPS5612627A publication Critical patent/JPS5612627A/en
Pending legal-status Critical Current

Links

Landscapes

  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)

Abstract

PURPOSE: To prevent the reverse incident light from the finder with simple constitution by providing a light-shielding plate which is movable parallel with the main mirror plane to the supporting substrate of a main movable mirror, moving the light-shielding plate synchronously with the turning of the main mirror, opening the semi-transparent mirror part of the main mirror at the observing and shutting the same at the exposing.
CONSTITUTION: A main half mirror 21 is adhered to the convex parts 22-aW22-c of a mirror carrier 22. Distance-measuring light is led in through the opening 22-h of the mirror carrier 22. A lever 23 pivotally supported rotatably by a pin 24 is mounted to the mirror carrier 22, and a light-shielding plate 26 pivotally supported rotatably by a pin 25 is mounted to its end. The other end of the lever 23 is engaged in the cam groove provided in a guiding plate 30 fixed to the camera body. The light-shielding plate 26 is in contactual touch with projecting parts 22-f, 22-g. At the exposing, the mirror rotates upward around the shaft 31, then the light-shielding plate 26 shields the opening 22-h by way of the lever 23 guided by the cam groove, thereby preventing harmful light. Besides, the constitution is extremely simple.
COPYRIGHT: (C)1981,JPO&Japio
JP8911679A 1979-07-10 1979-07-13 Movable mirror light-shielding device of single-lens reflex camera Pending JPS5612627A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP8911679A JPS5612627A (en) 1979-07-13 1979-07-13 Movable mirror light-shielding device of single-lens reflex camera
US06/166,969 US4348088A (en) 1979-07-10 1980-07-08 Single lens reflex camera
DE19803026027 DE3026027A1 (en) 1979-07-10 1980-07-09 One-eyed mirror reflex camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8911679A JPS5612627A (en) 1979-07-13 1979-07-13 Movable mirror light-shielding device of single-lens reflex camera

Publications (1)

Publication Number Publication Date
JPS5612627A true JPS5612627A (en) 1981-02-07

Family

ID=13961916

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8911679A Pending JPS5612627A (en) 1979-07-10 1979-07-13 Movable mirror light-shielding device of single-lens reflex camera

Country Status (1)

Country Link
JP (1) JPS5612627A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4734099U (en) * 1971-05-19 1972-12-15

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4734099U (en) * 1971-05-19 1972-12-15

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