VIDEO DISPLAY APPARATUS

PROBLEM TO BE SOLVED: To improve white balance, regarding a video display apparatus. SOLUTION: At least two color separating means are arranged on an optical path between a lamp 9 and a light valve means 13, and light of a wavelength band from 480nm to 540nm is eliminated from the optical path by sp...

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Bibliographic Details
Main Authors TANITSU MASAHIKO, SHIAKI TAKUYA, MIYOSHI TOMOHIRO, OUCHI SATOSHI, OTSUKA YASUO, IMAHASE TARO
Format Patent
LanguageEnglish
Published 24.08.2006
Subjects
ACCESSORIES THEREFOR
APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM
CINEMATOGRAPHY
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING
ELECTROGRAPHY
FREQUENCY-CHANGING
HOLOGRAPHY
NON-LINEAR OPTICS
OPTICAL ANALOGUE/DIGITAL CONVERTERS
OPTICAL LOGIC ELEMENTS
OPTICS
PHOTOGRAPHY
PHYSICS
TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Summary:PROBLEM TO BE SOLVED: To improve white balance, regarding a video display apparatus. SOLUTION: At least two color separating means are arranged on an optical path between a lamp 9 and a light valve means 13, and light of a wavelength band from 480nm to 540nm is eliminated from the optical path by spectral characteristics of the separating means. Further, respective lenses and respective mirrors on the way from the illuminating system to a light valve element are constituted so as to transmit ≥ about 95% of light of the wavelength band from nearly 400 to 430nm, and light of the wavelength band from nearly 680 to 700nm. COPYRIGHT: (C)2006,JPO&NCIPI
Bibliography:Application Number: JP20060130025