Back to results
US 4,649,323 AGranted
Microcomputer-controlled light switch
AssigneeLightolier Incorporated
InventorsGordon W. Pearlman, Steven B. Carlson
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeLightolier Incorporated
InventorsGordon W. Pearlman, Steven B. Carlson
Estimating the term…
A light level controller includes a microcomputer 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 automatic fade mode or if tapped while a fade is in progress it may cause the light source to make an abrupt transition 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 simultaneously this level will be stored in memory.
A light level controller including a source of light connected to at least one control switch means having a depressed state and a non-depressed state comprising:
A light level controller including a source of light connected to at least one non-latching switch having a depressed state and a non-depressed state comprising:
A light level controller, including a microcomputer for controlling a level of intensity of a source of light, said light level controller including at least one manually-operated switch comprising:
A light level controller including a source of light and an AC power source for powering said source of light and comprising control switch means interacting between said source of light, and said AC power source comprising means for initiating an automatic fade condition in said source of light when said control switch means is in first switch position and means for initiating a preset condition to preset said source of light to a chosen level when said control switch means is in a second switch position.
Dependencies are inferred from the claim text.