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US 2014/0191667 A1Published application
Light source controller
AssigneeOldenburg Group Incorporated
InventorChristopher M. Glandt
Life of this patent
Estimating the term…
Abstract
A light source control system using output feedback, comparing the current output to a previous output level of a light source and modulating a control signal to maintain the light source output at a predetermined percentage of its maximum.
Claims16
A light source controller coupled to a power supply, a light source having a predetermined operational lifetime period, and a light sensor, the light source controller comprising:
- a controller housing;
- a control processor disposed in the controller housing and coupled to the power supply, the light source, and the light sensor, the control processor configured to modulate, in a closed-loop feedback of the light source output, the actual light output of the light source to be constant over the operational lifetime period of the light source;
- and,
- a non-volatile memory unit coupled to the controller processor and configured to store light values associated with the light source used by the control processor to modulate the light output of the light source.
1 more element
A lighting system comprising:
- a power supply coupled to a power source;
- a light source coupled to the power supply;
- a light sensor configured to receive luminous flux from the light source and ambient light;
- and
- a light source controller coupled to the power supply, the light source, and the light sensor, the light source controller comprising:
- a controller housing;
- a control processor disposed in the controller housing and coupled to the power supply, the light source, and the light sensor, the control processor configured to modulate, in a closed-loop feedback of the light source output, the actual light output of the light source to be constant over the operational lifetime period of the light source;
- and,
- a non-volatile memory unit coupled to the controller processor and configured to store light values associated with the light source used by the control processor to modulate the light output of the light source.
6 more elements
Dependencies are inferred from the claim text.