Electric lamp and discharge devices: systems – With radiant energy sensitive control means – Radiant energy controlled regulation of the current supply...
Patent
1986-03-17
1987-05-26
Dixon, Harold
Electric lamp and discharge devices: systems
With radiant energy sensitive control means
Radiant energy controlled regulation of the current supply...
315156, 315200R, 362811, H05B 3702
Patent
active
046688951
ABSTRACT:
This light emitting element comprises three differently colored luminous sources the excitation of which varies as a function of a signal developed by a physical phenomenon sensor, in particular a microphone. The analog signal emitted by the sensor is initially converted into a sequence of electrical pulses in a suitable converter. The leading edges of said pulses are next applied to a counter the output of which provides a coded signal which changes with the arrival of each such edge and thus determines a different state of excitation of the luminous sources. The arrangement as described enables changing the color of the element from a musical signal.
REFERENCES:
patent: 3222574 (1965-12-01), Silvestri
patent: 3789211 (1974-01-01), Kramer
patent: 3805049 (1974-04-01), Frank et al.
patent: 4358754 (1982-11-01), Young et al.
Dixon Harold
Omega Electronics S.A.
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