POLARIZED BEAM SPLITTER AND REFLECTION TYPE LIQUID CRYSTAL PROJECTOR USING THE SAME

PROBLEM TO BE SOLVED: To provide a polarized beam splitter which does not generate a local difference in temperature of a polarizing beam splitter in spite of heat conduction from a polarizing plate, a dielectric multi-layered film, and a shading frame as heat sources but which is able to improve pi...

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Bibliographische Detailangaben
Hauptverfasser:	NAKAJIMA TSUTOMU, SHIAKI TAKUYA, KONUMA YOSHIHIRO
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 ELEMENTS, SYSTEMS, OR APPARATUS 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 polarized beam splitter which does not generate a local difference in temperature of a polarizing beam splitter in spite of heat conduction from a polarizing plate, a dielectric multi-layered film, and a shading frame as heat sources but which is able to improve picture deterioration of a projected image due to photo-elasticity, and to provide a projection type liquid crystal projector using the same. SOLUTION: In a polarized beam splitter, a 2nd light-transmissive member having a thermal conductivity higher than that of a 1st light-transmissive member is affixed to the 1st member.