Lighting method and apparatus for lighting a high pressure...

Details Lighting method and apparatus for lighting a high pressure... Lighting method and apparatus for lighting a high pressure...

2005-09-13

2005-09-13

Tran, Thuy Vinh (Department: 2821)

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Impedance or current regulator in the supply circuit

C315S308000, C315S291000

Reexamination Certificate

active

06943503

ABSTRACT:
When a detected lamp voltage (Vla) is below a predetermined value (S101: No), an alternating current that is higher in frequency than an alternating current supplied under rated-power operation is supplied (S102) for a predetermined time period (S103). The rated power is 150 W and the higher frequency is 500 Hz.

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patent: 2002-15883 (2002-01-01), None
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patent: 3327895 (2003-07-01), None

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