Light and light sensor

摘要

An LED-based light includes one or more LEDs, a sensor arranged to detect a brightness level in an area resulting from the combination of light emitted by the LEDs with light from at least one ambient light source other than the LEDs, and operable to output a signal corresponding to the detected brightness level, a controller operable to regulate an amount of power provided to the LEDs in response to the signal, a light transmitting housing for the LEDs, the sensor and the controller and a connector shaped for connection with a light socket disposed at an end of the housing.

主权项

1. A system, comprising:
an LED-based lighting device comprising:
a housing;one or more light emitting diodes (LEDs) disposed within the housing; anda connector coupled to an end of the housing, wherein the connector is configured to engage with a light socket; a sensor configured to:
determine a brightness level of light during operation of the LED-based lighting device, andoutput a signal corresponding to the determined brightness level; and a controller configured to estimate an efficiency of the one or more LEDs based on the signal.