Integrated lamp with feedback and wireless control
A lamp assembly ( 50 ) employs a reflector ( 52 ) defining a light reflecting area ( 53 ), and a heat sink ( 54 ) defining a circuit housing area ( 55 ). A LED assembly ( 51 ) is disposed within the light reflecting area ( 53 ) and heat sink ( 54 ) dissipates heat away from LED assembly ( 51 ). One or more LEDs of LED assembly ( 51 ) emit a light in response to a flow of a LED current through the LEDs. One or more optical power sensors of LED assembly ( 51 ) sense an emission of the light by LED(s). A LED driver circuit ( 30 ) is disposed within the circuit housing area ( 55 ) to control the flow of the LED current through the LED(s) as a function of a sensing of the emission of the light by the optical power sensor(s) and a desired level of one or more lighting variables associated with the LED(s).
1. A lamp assembly ( 50 ), comprising:
a reflector ( 52 ) defining a light reflecting area ( 53 );
a heat sink ( 54 ) defining a circuit housing area ( 55 ) operable to receive a LED driver circuit ( 30 );
a LED assembly ( 20 ) disposed within said light reflecting area ( 53 ) and in thermal communication with said heat sink ( 54 ) to dissipate heat away from said LED assembly ( 20 ), said LED assembly ( 20 ) including
at least one LED ( 21 ) operable to emit a light in response to a flow of a LED current (I LED ) through said at least one LED ( 21 ), a portion of the light being reflected within the light reflecting area ( 53 ) as reflected light, and
at least one optical power sensor ( 22 ) operable to sense the reflected light; and
wherein said LED driver circuit ( 30 ) is disposed within said circuit housing area ( 55 ), said LED driver circuit being in electrical communication with said LED assembly ( 20 ) to control the flow of the LED current (I LED ) through said at least one LED ( 21 ) as a function of a sensing of the emission of the light by said at least one optical power sensor ( 22 ).
2. The lamp assembly ( 50 ) of claim 1 , wherein said at least one LED ( 21 ) includes a plurality of LED arrays (LED R , LED G , LED B , LED A ).
3. The lamp assembly ( 50 ) of claim 1 , wherein the at least one optical power sensor ( 22 ) comprises a plurality of optical power sensors.
4. A lamp assembly ( 50 ), comprising:
a reflector ( 52 ) defining a light reflecting area ( 53 );
a heat sink ( 54 ) defining a circuit housing area ( 55 );
a LED assembly ( 20 ) disposed within said light reflecting area ( 53 ) and in thermal communication with said heat sink ( 54 ) to dissipate heat away from said LED assembly ( 20 ), said LED assembly ( 20 ) including
at least one LED ( 21 ) operable to emit a light in response to a flow of a LED current (I LED ) through said at least one LED ( 21 ), a portion of the light being reflected within the light reflecting area ( 53 ) as reflected light, and
at least one optical power sensor ( 22 ) operable to sense the reflected light; and
a LED driver circuit ( 30 ) disposed within said circuit housing area ( 55 ), said LED driver circuit in electrical communication with said LED assembly ( 20 ) to control the flow of the LED current (I LED ) through said at least one LED ( 21 ) as a function of a sensing of the emission of the light by said at least one optical power sensor ( 22 ), said LED driver circuit ( 30 ) including a transceiver ( 35 ) operable to receive a communication of at least one lighting variable associated with the emission of the light by said at least one LED ( 21 );
wherein the flow of the LED current (I LED ) through said at least one LED ( 21 ) is a function of the sensing of the emission of the light by said at least one optical power sensor ( 22 ) and a reception of the communication of the at least one lighting variable by said transceiver ( 37 ).
5. The lamp assembly ( 50 ) of claim 4 , further comprising:
an antenna ( 36 ) operable to transmit the communication of the at least one lighting variable to said transceiver ( 35 ).
6. The lamp assembly ( 50 ) of claim 4 , further comprising:
a controller ( 31 ) in electric communication with said transceiver ( 35 ) to communicate a LED control signal (CS 5 ) indicative of the at least one lighting variable to said transceiver ( 35 ).
7. The lamp assembly ( 50 ) of claim 4 , wherein said at least one LED ( 21 ) includes a plurality of LED arrays (LED R , LED G , LED B , LED A ).
8. The lamp assembly ( 50 ) of claim 4 , wherein said LED driver circuit ( 30 ) further includes:
an error detector ( 37 ) for generating a correction light value (CLV) indicative of a differential between a sensed light value (SLV) and a desired light value (DLV), the sensed light value (SLV) being indicative of the sensing of the reflected light by said at least one optical power sensor ( 22 ), the desired light value (DLV) being indicative of the reception of the communication of the at least one lighting variable by said transceiver ( 35 ).
9. The lamp assembly ( 50 ) of claim 8 , wherein said LED driver circuit ( 30 ) further includes:
a controller ( 31 ) in electrical communication with said error detector ( 37 ) to receive the correction light value (CLV), said controller ( 31 ) operable to generate a LED control signal (CS 2 ) as a function of the correction light value (CLV).
10. The lamp assembly ( 50 ) of claim 9 , wherein said LED driver circuit ( 30 ) further includes:
a power circuit ( 32 ) in electrical communication with said controller ( 31 ) to receive the LED control signal (CS 2 ), said power circuit ( 32 ) operable to direct the flow of the LED current (I LED ) through said at least one LED ( 21 ) as a function of the LED control signal (CS 2 ).
11. A lamp assembly ( 50 ), comprising:
a reflector ( 52 ) defining a light reflecting area ( 53 );
a heat sink ( 54 ) defining a circuit housing area ( 55 );
a LED assembly ( 20 ) disposed within said light reflecting area ( 53 ) and in thermal communication with said heat sink ( 54 ) to dissipate heat away from said LED assembly ( 20 ), said LED assembly ( 20 ) including
at least one LED ( 21 ) operable to emit a light in response to a flow of a LED current (I LED ) through said at least one LED ( 21 ), and
at least one optical power sensor ( 22 ) operable to sense an emission of the light by said at least one LED ( 21 ); and
a LED driver circuit ( 30 ) disposed within said circuit housing area ( 55 ), said LED driver circuit in electrical communication with said LED assembly ( 20 ) to control the flow of the LED current (I LED ) through said at least one LED ( 21 ) as a function of a sensing of the emission of the light by said at least one optical power sensor ( 22 ), said LED driver circuit ( 30 ) including a transceiver ( 35 ) operable to receive a communication of at least one lighting variable associated with the emission of the light by said at least one LED ( 21 ), said LED driver circuit ( 30 ) further including an error detector ( 37 ) for generating a correction light value (CLV) indicative of a differential between a sensed light value (SLV) and a desired light value (DLV), the sensed light value (SLV) being indicative of the sensing of the emission of the light by said at least one optical power sensor ( 22 ), the desired light value (DLV) being indicative of the reception of the communication of the at least one lighting variable by said transceiver ( 35 );
wherein the flow of the LED current (I LED ) through said at least one LED ( 21 ) is a function of the sensing of the emission of the light by said at least one optical power sensor ( 22 ) and a reception of the communication of the at least one lighting variable by said transceiver ( 37 ).
12. The lamp assembly ( 50 ) of claim 11 , wherein said LED driver circuit ( 30 ) further includes:
a controller ( 31 ) in electrical communication with said error detector ( 37 ) to receive the correction light value (CLV), said controller ( 31 ) operable to generate a LED control signal (CS 2 ) as a function of the correction light value (CLV).
13. The lamp assembly ( 50 ) of claim 12 , wherein said LED driver circuit ( 30 ) further includes:
a power circuit ( 32 ) in electrical communication with said controller ( 31 ) to receive the LED control signal (CS 2 ), said power circuit ( 32 ) operable to direct the flow of the LED current (I LED ) through said at least one LED ( 21 ) as a function of the LED control signal (CS 2 ).