Illumination device and projector equipping the same

Details Illumination device and projector equipping the same Illumination device and projector equipping the same

2008-05-27

2008-05-27

Sember, Thomas M. (Department: 2885)

Illumination

Light source and modifier

Ionized gas or vapor light source

C362S298000, C362S346000, C362S263000, C362S267000, C362S310000, C313S046000, C313S114000

Reexamination Certificate

active

10798448

ABSTRACT:
Exemplary embodiments of the present invention include a second reflector attached to a sealing portion so that its reflection surface may surround substantially the front half of a light emitting portion, the heat capacity of a front-side electrode surrounded with the second reflector is made larger than that of a rear-side electrode, an electrode shaft which supports the front-side electrode surrounded with the second reflector is made thicker and/or longer than an electrode shaft which supports the rear-side electrode, the front-side sealing portion to which the second reflector is attached is made thicker than a rear-side sealing portion, and the front-side sealing portion, to which the second reflector is attached is coated with a heat radiation material which has a thermal conductivity higher than that of the material of this sealing portion.

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