Light unit with improved heat dissipation

A lamp unit (3) for use with digital micromirror devices has a direct current short arc discharge lamp (1) in which at least 0.15 mg/mm3 of mercury is sealed. A short focal length, elliptical reflector mirror (2) both covers the discharge lamp (1) and positions the axis of radiation roughly in line...

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Bibliographische Detailangaben
1. Verfasser:	OKAZAKI YOSHIO
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 BASIC ELECTRIC ELEMENTS BLASTING CINEMATOGRAPHY ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRICITY ELECTROGRAPHY FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING HOLOGRAPHY LIGHTING MECHANICAL ENGINEERING OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHOTOGRAPHY PHYSICS STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR WEAPONS
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Beschreibung
Zusammenfassung:	A lamp unit (3) for use with digital micromirror devices has a direct current short arc discharge lamp (1) in which at least 0.15 mg/mm3 of mercury is sealed. A short focal length, elliptical reflector mirror (2) both covers the discharge lamp (1) and positions the axis of radiation roughly in line with the long axis of the discharge lamp, such that the short arc discharge lamp (1) is placed with the cathode (14) in a front opening of the reflector mirror (2)