H - Electricity – 05 – B
Patent
H - Electricity
05
B
315/70, 315/73
H05B 39/04 (2006.01) G05F 1/455 (2006.01) H02M 5/257 (2006.01) H05B 39/08 (2006.01) H01H 23/02 (2006.01) H01H 23/14 (2006.01)
Patent
CA 1239662
Abstract of the Disclosure A light level controller includes a micro- computer controlled light switch which responds to a manual tap or a longer manual depression of the switch in order to initiate various control modes for a light source. Preset levels of light intensity may be stored in the microcomputer's memory and an automatic fade mode may be initiated to cause the level of light intensity to fade from a current level to a preset level at a pre-established rate. The controller may respond to the momentary depression of the switch to initiate the auto- matic fade mode or if tapped while a fade is in progress it may cause the light source to make an abrupt transi- tion to either full on or full off, depending on whether a higher or lower level of light intensity is desired. A depression of the switch for a period longer than a tap will cause the level of light intensity to continue to change until the switch is released, and simultan- eously this level will be stored in memory. -29-
504291
Carlson Steven B.
Pearlman Gordon W.
Lightolier Incorporated
Ridout & Maybee Llp
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