Electric lamp and discharge devices – With optical device or special ray transmissive envelope – Reflector
Patent
1997-04-24
1999-12-14
Patel, Vip
Electric lamp and discharge devices
With optical device or special ray transmissive envelope
Reflector
313570, H01J 516
Patent
active
060021977
ABSTRACT:
A light source device for a liquid crystal projector in which it is possible to prevent distinct appearance of a shadow of the conducting wiring of a lamp on a screen, even if an integrator lens is used, is achieved according to the invention by the fact that, in a light source device which has a metal halide lamp with bilateral sealed terminations in which seal areas are joined in one piece to two ends of an arc tube, and a concave reflector, in which one of the seal areas of the lamp is installed and held in a base opening of the concave reflector, and in which the other seal area extends in toward the front opening of the concave reflector, by conducting wiring connected to the outer lead pin which projects from the seal area toward the front opening of the concave reflector being positioned running toward the arc tube in a manner resting directly on this seal area, and then being drawn out in the vicinity of the arc tube with to behind the concave reflector.
REFERENCES:
patent: 4510558 (1985-04-01), Van Den Brink
patent: 5479065 (1995-12-01), Sugimoto et al.
patent: 5574328 (1996-11-01), Okuchi
patent: 5789850 (1998-08-01), Iwafuji et al.
patent: 5806971 (1998-09-01), Sugihara et al.
Arimoto Tomoyoshi
Higashi Tadatoshi
Kabuki Kiyoyuki
Tanaka Yasuo
Gerike Matthew
Patel Vip
Safran David S.
Ushiodenki Kabushiki Kaisha
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