Lamp dimmer control with integral ambient sensor

Details Lamp dimmer control with integral ambient sensor Lamp dimmer control with integral ambient sensor

1980-12-29

1983-01-11

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

With radiant energy sensitive control means

Radiant energy controlled regulation of the current supply...

250214AL, 250239, 315 77, 315156, 315291, H05B 3702

Patent

active

043684068

ABSTRACT:
A lamp dimmer control utilizing a variable resistor and an associated adjustment mechanism having an ambient light sensor mounted integral to the control so as to receive ambient light external to the control housing via a translucent adjustment mechanism. Constant contrast illumination control is achieved by pulse width modulation techniques in accordance with the output of the variable resistance setting and the output of the ambient light sensor.

REFERENCES:
patent: 3371241 (1968-02-01), Amacher
patent: 3416032 (1968-12-01), Jahns et al.
patent: 4118654 (1978-10-01), Ohta et al.
patent: 4125767 (1978-11-01), Silver

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