JPS57104130A - Single-lens reflex camera - Google Patents

Single-lens reflex camera

Info

Publication number
JPS57104130A
JPS57104130A JP17453081A JP17453081A JPS57104130A JP S57104130 A JPS57104130 A JP S57104130A JP 17453081 A JP17453081 A JP 17453081A JP 17453081 A JP17453081 A JP 17453081A JP S57104130 A JPS57104130 A JP S57104130A
Authority
JP
Japan
Prior art keywords
image
focussed
lens
light
camera
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
JP17453081A
Other languages
Japanese (ja)
Inventor
Haruhiko Momose
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta 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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP17453081A priority Critical patent/JPS57104130A/en
Publication of JPS57104130A publication Critical patent/JPS57104130A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/36—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Automatic Focus Adjustment (AREA)
  • Focusing (AREA)
  • Viewfinders (AREA)
  • Indication In Cameras, And Counting Of Exposures (AREA)

Abstract

PURPOSE:To prevent incorrect photographing by providing an indicating means which is operated by the output signal of a photoelectric conversion part in a view finder and shows visually being in focus or out of focus. CONSTITUTION:There provided are a subject O, an objective OL mounted on the main body of a camera CB and a quick return mirror QRM which reflects the light source passed through the object lens OL, and the reflected light by the mirror QRM is image-focussed on a Fesnel lens FL as a focussing place, focussed by a condenser lens CL and led to a beam spliter BS. An image is observed through an eyepiece EP with a pentaprism PP that reflects a part of the beam of light passed through this splitter BS. On the other hand, the remaining beam of light is image-focussed on a split image prism SIP by the first relay lens. This prism SIP is provided in the location optically related with the film surface F in the main body of the camera CB, and its image is projected onto a photoelectric conversion part FD by the second relay RL2.
JP17453081A 1981-11-02 1981-11-02 Single-lens reflex camera Pending JPS57104130A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17453081A JPS57104130A (en) 1981-11-02 1981-11-02 Single-lens reflex camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17453081A JPS57104130A (en) 1981-11-02 1981-11-02 Single-lens reflex camera

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP49033888A Division JPS50128523A (en) 1974-03-28 1974-03-28

Publications (1)

Publication Number Publication Date
JPS57104130A true JPS57104130A (en) 1982-06-29

Family

ID=15980135

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17453081A Pending JPS57104130A (en) 1981-11-02 1981-11-02 Single-lens reflex camera

Country Status (1)

Country Link
JP (1) JPS57104130A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4890224A (en) * 1972-02-29 1973-11-24
JPS4922189U (en) * 1972-06-02 1974-02-25
JPS5021726A (en) * 1973-06-26 1975-03-07

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4890224A (en) * 1972-02-29 1973-11-24
JPS4922189U (en) * 1972-06-02 1974-02-25
JPS5021726A (en) * 1973-06-26 1975-03-07

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