JPS6461727A - Display device - Google Patents

Display device

Info

Publication number
JPS6461727A
JPS6461727A JP21863587A JP21863587A JPS6461727A JP S6461727 A JPS6461727 A JP S6461727A JP 21863587 A JP21863587 A JP 21863587A JP 21863587 A JP21863587 A JP 21863587A JP S6461727 A JPS6461727 A JP S6461727A
Authority
JP
Japan
Prior art keywords
diffraction grating
image
formation surface
diffracted light
grating
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
JP21863587A
Other languages
Japanese (ja)
Inventor
Michiyo Nishimura
Akihiko Nagano
Etsuro Kishi
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 JP21863587A priority Critical patent/JPS6461727A/en
Publication of JPS6461727A publication Critical patent/JPS6461727A/en
Pending legal-status Critical Current

Links

Landscapes

  • Viewfinders (AREA)
  • Liquid Crystal (AREA)
  • Indication In Cameras, And Counting Of Exposures (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)

Abstract

PURPOSE:To preclude an image shift caused by unnecessary diffracted light and to obtain the device of high display quality with high contrast by determining the distance between an image formation surface and a diffraction grating according to the size of grating pitch in use and the permissible value of an image shift quantity. CONSTITUTION:The diffraction grating 202 is arranged in an optical path nearby the image formation surface 203 of a finder optical system and the diffraction of light 201 incident on the diffraction grating 202 is controlled to make a display. At this time, the distance A from the image formation surface 203 to the diffraction grating most distant from it is controlled with the grating pitch (d) of the diffraction grating 202 and the permissible value of the image shift quantity (x) of an observation image generated by the diffraction grating 202. Consequently, a display image is prevented from deteriorating owing to unnecessary diffracted light except diffracted light of 0th order generated by the diffraction grating 202.
JP21863587A 1987-09-01 1987-09-01 Display device Pending JPS6461727A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21863587A JPS6461727A (en) 1987-09-01 1987-09-01 Display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21863587A JPS6461727A (en) 1987-09-01 1987-09-01 Display device

Publications (1)

Publication Number Publication Date
JPS6461727A true JPS6461727A (en) 1989-03-08

Family

ID=16723039

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21863587A Pending JPS6461727A (en) 1987-09-01 1987-09-01 Display device

Country Status (1)

Country Link
JP (1) JPS6461727A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6449516B1 (en) 1998-07-03 2002-09-10 Kabushiki Kaisha Shinkawa Bonding method and apparatus
JP2005316444A (en) * 2004-03-31 2005-11-10 Matsushita Electric Ind Co Ltd Color separator and imaging apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6449516B1 (en) 1998-07-03 2002-09-10 Kabushiki Kaisha Shinkawa Bonding method and apparatus
JP2005316444A (en) * 2004-03-31 2005-11-10 Matsushita Electric Ind Co Ltd Color separator and imaging apparatus

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