Lamp with discharge vessel made of densely sintered translucent

Details Lamp with discharge vessel made of densely sintered translucent Lamp with discharge vessel made of densely sintered translucent

1984-07-09

1986-10-28

Moore, David K.

Electric lamp and discharge devices

With gas or vapor

Envelope composition

313635, H01J 1716, H01J 6130

Patent

active

046201319

ABSTRACT:
The invention relates to a lamp comprising a discharge vessel of densely sintered translucent aluminum oxide, which is formed for the major part from crystals of at most 60 .mu.m. At least the inner surface of the discharge vessel is formed for at least 50% from crystals whose size lies between 60 .mu.m and 300 .mu.m, which crystal size distribution extends over a layer thickness of one crystal. Such a discharge vessel has a very high resistance to corrosion and is therefore particularly suitable to be used in high-pressure metal vapor discharge lamps.

REFERENCES:
patent: 4150317 (1979-04-01), Laska et al.
patent: 4182972 (1980-01-01), Kaneno et al.
patent: 4214666 (1980-07-01), Oda et al.

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