Radiant energy – Invisible radiant energy responsive electric signalling – Signalling means controls incident radiation
Patent
1972-05-26
1976-04-06
Dixon, Harold A.
Radiant energy
Invisible radiant energy responsive electric signalling
Signalling means controls incident radiation
96 361, 250205, 250227, 250239, 250461, G01M 2138, G01J 132, G03C 500
Patent
active
039492265
ABSTRACT:
Apparatus for use in a lighthouse station for automatically maintaining the output of the light source at a predetermined level comprises a chamber for supporting a cathode ray tube face panel and a source of actinic energy located in the chamber. An adjustable controller is employed for energizing the source. A light translator in the form of a quartz rod is disposed adjacent the energy source for monitoring its output. A light responsive device, coupled to the light translator, derives a control signal representative of the instantaneous energy level of the light source. Finally, means responsive to the control signal serves to actuate the controller to maintain the output of the source at a predetermined level.
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patent: 3287130 (1966-11-01), Kaplan
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patent: 3360650 (1967-12-01), Lawrence
patent: 3521067 (1970-07-01), Splain
patent: 3588246 (1971-06-01), Georges
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patent: 3685994 (1972-08-01), Frey
Dugan James A.
Park Yong S.
Coult John H.
Dixon Harold A.
Zenith Radio Corporation
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