Short arc lamp

Details Short arc lamp Short arc lamp

2007-12-25

2007-12-25

Ortiz, Angela (Department: 2809)

Electric lamp and discharge devices

With envelope

Having base and connector

C313S623000, C313S624000, C313S625000, C313S632000

Reexamination Certificate

active

11199129

ABSTRACT:
According to the present invention, a short arc lamp comprises a lamp main body having a reflective surface therein, a first opening on an optical axis thereof, and a second openings, a window member provided so as to close the second opening and to define a discharge space between the lamp main body and the opening, a first electrode and a second electrode that are arranged so as to face each other, wherein a tip portion of each of the electrodes extends into the discharge space, and a base disposed approximately at a back end portion of the lamp main body, wherein a hole is formed in the base, the first electrode is held in a burying portion of the base, and a diameter of the first electrode in the burying portion is larger than that of the tip portion of the first electrode.

REFERENCES:
patent: 3006069 (1961-10-01), Rhoads et al.
patent: 3543076 (1970-11-01), Haslund
patent: 5479065 (1995-12-01), Sugimoto et al.
patent: 5789863 (1998-08-01), Takahashi et al.
patent: 6181053 (2001-01-01), Roberts
patent: 6281629 (2001-08-01), Tanaka et al.
patent: 2006/0033416 (2006-02-01), Sawada
patent: 11-162412 (1999-06-01), None
patent: 3183145 (2001-07-01), None

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