JPS6468739A - Display optical system for finder - Google Patents

Display optical system for finder

Info

Publication number
JPS6468739A
JPS6468739A JP22712387A JP22712387A JPS6468739A JP S6468739 A JPS6468739 A JP S6468739A JP 22712387 A JP22712387 A JP 22712387A JP 22712387 A JP22712387 A JP 22712387A JP S6468739 A JPS6468739 A JP S6468739A
Authority
JP
Japan
Prior art keywords
finder
secondary image
mirror
light
formation
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
JP22712387A
Other languages
Japanese (ja)
Inventor
Kazuo Fujibayashi
Makoto Sekida
Masaharu Suzuki
Masatake Kato
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 JP22712387A priority Critical patent/JPS6468739A/en
Priority to US07/241,884 priority patent/US4910545A/en
Publication of JPS6468739A publication Critical patent/JPS6468739A/en
Pending legal-status Critical Current

Links

Landscapes

  • Viewfinders (AREA)
  • Indication In Cameras, And Counting Of Exposures (AREA)

Abstract

PURPOSE:To increase the number of displaying members for display in a finder and the number of degrees of freedom in arrangement and to easily execute illumination with external light by setting the finder of a single lens reflex camera as a secondary image-formation type and arraying a secondary image-formation surface in a nearly horizontal direction. CONSTITUTION:A mirror 12 which receives the light of finder projected from a secondary image-formation lens 11, reflects the light to the finder side and the light of the finder is reflected downward to an optical axis 0 by a mirror 13 and passes through the secondary image-formation surface 14 to be reflected in a horizontal direction with a mirror 15. And a photographic information display part 17 is arranged on the plane same to the secondary image-formation surface outside the optical path of the finder and the external light is reflected twice with a prism 18 and guided to the display part 17. And luminous flux transmitted through the display part 17 is orientated to an eye piece lens through the mirror 15. Since an image is formed again on the surface nearly parallel with the optical axis of a photographing system, the magnification in the field of view can be improved and the number of degrees of freedom can be increased in the arrangement of the display members 17 and 18, so that the photographic information which is easily viewed can be made visible with a simple constitution.
JP22712387A 1987-09-09 1987-09-09 Display optical system for finder Pending JPS6468739A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP22712387A JPS6468739A (en) 1987-09-09 1987-09-09 Display optical system for finder
US07/241,884 US4910545A (en) 1987-09-09 1988-09-08 Finder optical system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22712387A JPS6468739A (en) 1987-09-09 1987-09-09 Display optical system for finder

Publications (1)

Publication Number Publication Date
JPS6468739A true JPS6468739A (en) 1989-03-14

Family

ID=16855840

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22712387A Pending JPS6468739A (en) 1987-09-09 1987-09-09 Display optical system for finder

Country Status (1)

Country Link
JP (1) JPS6468739A (en)

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