JP2007017695A5 - - Google Patents

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Publication number
JP2007017695A5
JP2007017695A5 JP2005198995A JP2005198995A JP2007017695A5 JP 2007017695 A5 JP2007017695 A5 JP 2007017695A5 JP 2005198995 A JP2005198995 A JP 2005198995A JP 2005198995 A JP2005198995 A JP 2005198995A JP 2007017695 A5 JP2007017695 A5 JP 2007017695A5
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JP
Japan
Prior art keywords
display
finder
brightness
predetermined area
display device
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
JP2005198995A
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Japanese (ja)
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JP2007017695A (en
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Publication date
Application filed filed Critical
Priority to JP2005198995A priority Critical patent/JP2007017695A/en
Priority claimed from JP2005198995A external-priority patent/JP2007017695A/en
Publication of JP2007017695A publication Critical patent/JP2007017695A/en
Publication of JP2007017695A5 publication Critical patent/JP2007017695A5/ja
Pending legal-status Critical Current

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Claims (5)

撮影装置のファインダ視野内の被写体像にファインダ内表示を重ねて表示する表示装置において、
前記ファインダ視野内における前記ファインダ内表示を含む所定領域内の被写体輝度に応じて、その所定領域内のファインダ内表示の輝度を制御することにより、その所定領域内のファインダ内表示の視認性を向上させる表示輝度制御手段を備えたことを特徴とする表示装置。 In a display device that displays a finder display superimposed on a subject image in the viewfinder field of the photographing device,
The visibility of the in-finder display in the predetermined area is improved by controlling the brightness of the in-finder display in the predetermined area according to the subject luminance in the predetermined area including the in-finder display in the finder visual field. A display device characterized by comprising display luminance control means. 請求項１に記載の表示装置において、
屈折率異方性の液晶を含む屈折率異方性領域層と屈折率等方性領域層とを交互に積層して成る液晶多層構造部を一対の透明電極で挟持した液晶ホログラム表示部を、少なくとも一つ有する回折光学素子と、
前記回折光学素子に照明光を入射する光源と有し、
前記表示輝度制御手段は、前記一対の透明電極に印加される電圧を制御して、前記液晶ホログラム表示部で回折された回折光による前記ファインダ内表示のオンオフを制御することにより、前記ファインダ内表示の視認性を向上させることを特徴とする表示装置。 The display device according to claim 1,
A liquid crystal hologram display portion in which a liquid crystal multilayer structure portion formed by alternately laminating a refractive index anisotropic region layer and a refractive index isotropic region layer containing a liquid crystal having refractive index anisotropy is sandwiched between a pair of transparent electrodes, Having at least one diffractive optical element;
Includes a light source for incident illumination light to the diffractive optical element,
The display brightness control means controls the voltage applied to the pair of transparent electrodes, by controlling the viewfinder display on-off by light diffracted by the liquid crystal hologram display unit, the display in the viewfinder A display device characterized by improving visibility . 請求項２に記載の表示装置において、The display device according to claim 2,
前記表示輝度制御手段は、前記ファインダ内表示のオン時間とオフ時間との比率を変えることにより前記輝度を制御することを特徴とする表示装置。The display brightness control means controls the brightness by changing a ratio between an on time and an off time of the display in the finder. 請求項２または請求項３に記載の表示装置において、The display device according to claim 2 or claim 3,
前記光源からの前記照明光の輝度は、前記表示輝度制御手段で前記ファインダ内表示のオンオフの制御をしているとき、一定に保たれることを特徴とする表示装置。The brightness of the illumination light from the light source is kept constant when the display brightness control means controls the on-off display in the viewfinder. ファインダ視野内における被写体輝度を検出する測光手段と、
請求項１から請求項４のいずれか１項に記載の表示装置とを備え、
前記表示輝度制御手段は、前記測光手段で検出される前記所定領域内の被写体輝度に応じて、その所定領域内のファインダ内表示の輝度を制御することにより、その所定領域内のファインダ内表示の視認性を向上させることを特徴とするカメラ。 Photometric means for detecting subject brightness in the viewfinder field;
A display device according to any one of claims 1 to 4 ,
The display brightness control means controls the brightness of the display in the finder in the predetermined area according to the subject brightness in the predetermined area detected by the photometry means, thereby controlling the display in the finder in the predetermined area. A camera characterized by improving visibility .
JP2005198995A 2005-07-07 2005-07-07 Display device and camera Pending JP2007017695A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005198995A JP2007017695A (en) 2005-07-07 2005-07-07 Display device and camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005198995A JP2007017695A (en) 2005-07-07 2005-07-07 Display device and camera

Publications (2)

Publication Number Publication Date
JP2007017695A JP2007017695A (en) 2007-01-25
JP2007017695A5 true JP2007017695A5 (en) 2008-10-16

Family

ID=37754923

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005198995A Pending JP2007017695A (en) 2005-07-07 2005-07-07 Display device and camera

Country Status (1)

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JP (1) JP2007017695A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8436976B2 (en) 2007-02-26 2013-05-07 Nikon Corporation Display device, finder device and camera
JP5104205B2 (en) 2007-10-24 2012-12-19 セイコーエプソン株式会社 Image display device
JP5359110B2 (en) * 2008-08-12 2013-12-04 株式会社ニコン Display device and camera equipped with the same
JP5912712B2 (en) * 2012-03-21 2016-04-27 スタンレー電気株式会社 Optical system for illumination

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0365939A (en) * 1989-08-04 1991-03-20 Canon Inc Display device for camera
JPH06301097A (en) * 1993-04-12 1994-10-28 Olympus Optical Co Ltd Camera having focus aid indication
JPH07244317A (en) * 1994-03-04 1995-09-19 Canon Inc Camera
JPH08101660A (en) * 1994-09-30 1996-04-16 Matsushita Electric Works Ltd Display device
JPH112862A (en) * 1997-06-11 1999-01-06 Nikon Corp Optical device and camera
JP2000089337A (en) * 1998-09-10 2000-03-31 Minolta Co Ltd Display device within finder picture plane for camera
JP2002040983A (en) * 2000-07-27 2002-02-08 Sony Corp Display control device and display control method
JP2002090858A (en) * 2000-09-20 2002-03-27 Olympus Optical Co Ltd In-finder display device
JP2002131825A (en) * 2000-10-25 2002-05-09 Olympus Optical Co Ltd Display device within finder
JP2002131823A (en) * 2000-10-30 2002-05-09 Fuji Photo Optical Co Ltd Optical instrument state display
JP4029166B2 (en) * 2002-12-06 2008-01-09 株式会社ニコン Display device and camera

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