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US 7,411,174 B2Granted
Sensor-controlled LED array apparatus and method
OwnerBrandon A. Eashinventor
Life of this patent
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Abstract
An apparatus for selectively emitting light is provided. The apparatus has at least one light-emitting diode (LED) for emitting light. and a sensor that responds to the presence of a signal, such as infra-red light. The apparatus has a controller that controls the activation of the at least one LED based upon the sensor response.
Claims7
Apparatus for selectively emitting light to illuminate an enclosed space having a door allowing access thereto, the apparatus comprising:
- a plurality of light-emitting diodes (LED's) positioned within said enclosed space;
- an infra red (IR) light source;
- an IR light sensor for responding to the presence of IR light from the IR light source;
- and
- a controller configured to determine when said door is in a first position and control said plurality of LED's based upon the response of said IR light sensor in response thereto;
- wherein, the first position is the door being in a closed position;
- wherein, the controller is further configured to deactivate the plurality of LED's when the IR sensor responds to the presence of IR light;
- and
- wherein, IR light from said IR light source is reflected off of a surface disposed on the door when the door is in the closed position before being received by said IR sensor whereby said plurality of LED's is deactivated.
6 more elements
Apparatus for selectively emitting light to illuminate an enclosed space having a door allowing access thereto, the apparatus comprising:
- a plurality of light-emitting diodes (LED's) positioned within said enclosed space;
- an infra red (IR) light source;
- an IR light sensor for responding to the presence of IR light from the IR light source;
- an ambient light sensor for detecting the presence of ambient light;
- and
- a controller configured to determine when said door is in a first position and control said plurality of LED's based upon the response of said IR light sensor in response thereto;
- wherein, the first position is the door being in a closed position;
- wherein, the controller is further configured to deactivate the plurality of LED's when the IR sensor responds to the presence of IR light;
- and
- wherein said controller is prohibited from deactivating said plurality of light-emitting diodes when ambient light is sensed by said ambient light sensor.
7 more elements
Dependencies are inferred from the claim text.