High pressure discharge lamp

Details High pressure discharge lamp High pressure discharge lamp

1985-12-05

1988-02-09

Chatmon, Saxfield

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

313634, 313631, 315DIG5, 315DIG7, 315209R, H05B 4116, H05B 4124

Patent

active

047243619

ABSTRACT:
A high pressure discharge lamp wherein an arc tube is so formed at least at one end portion as to satisfy a predetermined condition, unlike any known configuration and dimensions of the arc tube end portion, to restrain occurrence of acoustic resonance phenomenon for reducing zones in which the phenomenon occurs at least to be below 50% and effectively preventing any adverse influence of the phenomenon on discharge arc column.

REFERENCES:
patent: 3890537 (1975-06-01), Parks et al.
patent: 4052636 (1977-10-01), Strok
patent: 4170746 (1979-10-01), Davenport
patent: 4373146 (1983-02-01), Bonazoli et al.
patent: 4503356 (1985-03-01), Kobayashi et al.
patent: 4527097 (1985-07-01), Heijden et al.
patent: 4535271 (1985-08-01), Holmes

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