High intensity arc lamp

Details High intensity arc lamp High intensity arc lamp

1984-07-16

1986-07-08

Nelms, David C.

Electric lamp and discharge devices

With gas or vapor

Having a particular total or partial pressure

313113, 313643, H01J 1720, H01J 516

Patent

active

045995400

ABSTRACT:
An improved short-arc gas discharge lamp having a solid ceramic body with an integral reflector surface. The lamp includes a sapphire window, fitted to one end of the ceramic body, and a thermally and electrically conductive base fitted to the opposite end of the ceramic cylinder to form a sealed pressure chamber. The window is secured to a unitary U-shaped flange for improved strength and leak resistance. A pair of annular back-up rings secure the window flange to the ceramic body so as to relieve stress on the window flange. The reflective surface is formed by pressing the ceramic body, when hot, with an unpolished mandrel, for greater accuracy in surface configuration. A smooth, highly reflective surface is obtained by subsequent surface treatment.

REFERENCES:
patent: 3502929 (1970-03-01), Richter
patent: 3715613 (1973-02-01), Parkman
patent: 3731133 (1973-05-01), McRae et al.
patent: 3808496 (1974-04-01), McRae et al.
patent: 3852629 (1974-12-01), Stuart
patent: 3862449 (1975-01-01), Stuart et al.

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