PROJECTION VIDEO DISPLAY DEVICE

PROBLEM TO BE SOLVED: To provide a projection video display device, favorably keeping the accuracy of disposing a reflection mirror provided to shorten the distance between the projection type video display device and a projection surface. SOLUTION: This projection video display device 100 includes...

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Bibliographische Detailangaben
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 ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY FREQUENCY-CHANGING HOLOGRAPHY NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a projection video display device, favorably keeping the accuracy of disposing a reflection mirror provided to shorten the distance between the projection type video display device and a projection surface. SOLUTION: This projection video display device 100 includes a video light generating part 200 and a projection optical system 300. The projection optical system 300 has the reflection mirror 320. The projection type video display device 100 includes a support mechanism supporting a reflecting optical element 330 to be switched whether the reflecting optical element 330 is disposed on an optical path of video light reflected by the reflection mirror 320. COPYRIGHT: (C)2010,JPO&INPIT