Miniature reduced mercury HID lamp

Details Miniature reduced mercury HID lamp Miniature reduced mercury HID lamp

2005-11-22

2005-11-22

Williams, Joseph (Department: 2879)

Electric lamp and discharge devices

With gas or vapor

With particular gas or vapor

C313S638000, C313S639000, C313S640000

Reexamination Certificate

active

06967444

ABSTRACT:
Superior color stability in a miniature HID lamp can be achieved by reducing the size of the lamp, reducing the mercury concentration, reducing the salt concentration and increasing the heat to the lamp seal. In general the result concentrates the salts in the central, lower section of the lamp envelope and displaces them from the hot spot and electrode roots were deleterious chemical reactions can occur that are believed to subsequently reduce lamp performance.

REFERENCES:
patent: 6456008 (2002-09-01), Fukuyo et al.
patent: 6853140 (2005-02-01), Lapatovich et al.
patent: 2002/0027421 (2002-03-01), Kaneko et al.
patent: 2003/0052610 (2003-03-01), Takagaki et al.
patent: 2003/0189408 (2003-10-01), Lapatovich et al.
patent: 2004/0004438 (2004-01-01), Deguchi et al.

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