Discharge lamp, light source and projecting display unit

Details Discharge lamp, light source and projecting display unit Discharge lamp, light source and projecting display unit

2005-05-24

2005-05-24

Patel, Ashok (Department: 2879)

Electric lamp and discharge devices

With gas or vapor

Having particular electrode structure

C313S634000, C313S025000, C313S573000, C313S113000, C313S332000, C313S046000, C313S620000

Reexamination Certificate

active

06897613

ABSTRACT:
A discharge lamp of the present invention, which has an starting property, an arc stability and a service life which are improved even if the lamp produces a short arc. The discharge lamp includes a light emitting bulb, sealing members disposed on both sides of the light emitting bulb, metal foils sealed in the sealing members, a pair of electrodes which are connected to the metal foils and have large-diameter portions formed on tips, coils disposed at the rear of the large-diameter portions of the electrodes, external conductors, and a discharge medium enclosed in the light emitting bulb.

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