Ultra-high pressure discharge lamp

Details Ultra-high pressure discharge lamp Ultra-high pressure discharge lamp

2006-02-21

2006-02-21

Glick, Edward J. (Department: 2882)

Electric lamp and discharge devices

With gas or vapor

Envelope with particular structure

C313S493000, C313S573000

Reexamination Certificate

active

07002298

ABSTRACT:
An ultra-high pressure discharge lamp in which the disadvantage of the reduction of the illuminance maintenance factor due to formation of blackening and milky opacification in the discharge vessel and the disadvantage of formation of cracks in the discharge vessel is eliminated by the discharge vessel being made of a silica glass that contains 0.1 ppm by weight to 290 ppm by weight hydrogen. Further advantages are obtained by the silica glass having a content of OH radicals that is at most 1 ppm by weight and a content of aluminum in a range of 2 ppm by weight to 30 ppm by weight.

REFERENCES:
patent: 5109181 (1992-04-01), Fischer et al.
patent: 5497049 (1996-03-01), Fischer
patent: 6940217 (2005-09-01), Komiya et al.
patent: 2002/0175624 (2002-11-01), Fukushima et al.
patent: 2003/0094899 (2003-05-01), Fukushima et al.
patent: 6-305767 (1994-11-01), None

Affiliated with

Also associated with

Rating

Ultra-high pressure discharge lamp does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ultra-high pressure discharge lamp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultra-high pressure discharge lamp will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3666176