Electric lamp and discharge devices: systems – With radiant energy sensitive control means – Radiant energy controlled regulation of the current supply...
Patent
1988-11-21
1991-10-15
LaRoche, Eugene R.
Electric lamp and discharge devices: systems
With radiant energy sensitive control means
Radiant energy controlled regulation of the current supply...
315155, 315338, 315344, 315346, H05B 3122, H05B 3128
Patent
active
050577476
ABSTRACT:
Arc lamp output stability is improved by use of negative feedback which stabilizes arc position and intensity. Position and intensity of an image of the arc are sensed by optical sensors to control electromagnets which shift arc position so as to decrease wander and to control lamp current to decrease arc intensity variation.
REFERENCES:
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patent: 3014134 (1961-12-01), Bower
patent: 4417179 (1983-11-01), Fujimura et al.
patent: 4467246 (1984-08-01), Tanaka et al.
patent: 4630182 (1986-12-01), Moroi et al.
patent: 4871947 (1989-10-01), Miyashita et al.
Denson-Low Wanda K.
Gudmestad Terje
Hughes Aircraft Company
LaRoche Eugene R.
Yoo Do Hyun
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