Light modulator system and method

Details Light modulator system and method Light modulator system and method

1979-09-24

1982-01-05

Chatmon, Jr., Saxfield

Electric lamp and discharge devices: systems

Special application

Vehicle

307 10LS, 315200A, 307269, 362 72, B60Q 102

Patent

active

043096395

ABSTRACT:
A system for modulating an incandescent light to avoid total loss of illumination and to achieve improved conspicuity of the light along with subjective enhanced illumination. The modulating unit is electrically connected between a source of electrical power and the light to be modulated and includes a timer switch means operating at a duty cycle of at least 30 percent and a switching frequency of from about 2 to about 10 cycles per second, an amplifier transistor and a driver transistor, electrically connected thereto. Preferably the modulating unit is encapsulated to preclude effects of temperature, humidity and weather.

REFERENCES:
patent: 2891195 (1959-06-01), Smyth
patent: 3130349 (1964-04-01), Mallory
patent: 3631359 (1971-12-01), Jones
patent: 3660674 (1974-05-01), Bolinger
patent: 3710185 (1973-01-01), Switsen
patent: 3801866 (1974-04-01), Schmidgall
patent: 4149113 (1979-04-01), Sammis
patent: 4249160 (1981-02-01), Chilvers

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