LIGHT SOURCE DEVICE AND PROJECTION TYPE DISPLAY DEVICE EQUIPPED WITH THIS

PROBLEM TO BE SOLVED: To provide a light source device, in which, while the amount of electromagnetic wave leaking out from the light source device is maintained not more than a prescribed regulated value, and unnecessary light is excluded, light utilization efficiency can be improved without increa...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	SETO KOHEI
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 BLASTING 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 FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING HOLOGRAPHY INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED LIGHTING MECHANICAL ENGINEERING NON-LINEAR OPTICS NON-PORTABLE LIGHTING DEVICES OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHOTOGRAPHY PHYSICS STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR SYSTEMS THEREOF TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a light source device, in which, while the amount of electromagnetic wave leaking out from the light source device is maintained not more than a prescribed regulated value, and unnecessary light is excluded, light utilization efficiency can be improved without increasing the number of parts, and a projection type display device equipped with this. SOLUTION: The light source device 1 is equipped with an electrodeless electric discharge lamp 2 which discharges electricity to emit light by making a high frequency current flow, and has a condensing lens 3c on an aperture 6a side in the cabinet part 5, and an end part aperture 7b on the utmost downstream side, and an electroconductive tip shield part 7 is arranged having a tapering shape along the condensed light by the condensing lens 3c. COPYRIGHT: (C)2008,JPO&INPIT