PROJECTION TYPE VIDEO DISPLAY DEVICE

PROBLEM TO BE SOLVED: To provide a projection type image display device accurately mounted with a display element and a projection optical system. SOLUTION: A projector includes: the display element 121a which modulates light from a light source on the basis of a video signal; a dioptric system 130...

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1. Verfasser:	AMANO RYUHEI
Format:	Patent
Sprache:	eng
Schlagworte:	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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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a projection type image display device accurately mounted with a display element and a projection optical system. SOLUTION: A projector includes: the display element 121a which modulates light from a light source on the basis of a video signal; a dioptric system 130 which enlarges and projects light modulated by the display element 121a into a projection screen; and a shift mechanism (comprising fixing members 520 and a displacement mechanism 530) which shifts the display element 121a in a direction crossing the optical axis L1 of the dioptric system 130. The dioptric system 130 and the shift mechanism are mounted to the common base member 510. COPYRIGHT: (C)2010,JPO&INPIT