METHODS AND APPARATUS FOR CALIBRATING LIGHT OUTPUT BASED ON REFLECTED LIGHT

摘要

Disclosed are lighting devices (102), luminaires, lighting systems, lighting modules (104), and methods of controlling the same are taught herein. In various embodiments, a lighting device (102) may include a light source such as an LED (118) configured to emit light towards a targeted portion (106) of a surface (108). An LED driver (120) may be configured energize the LED in response to a compensated signal (132). A light sensor (122) may be configured to measure light reflected from the targeted portion of the surface and to generate a reflected light signal (128) that represents one or more properties of the reflected light. A controller (116) may be operably coupled with the LED driver and the light sensor. The controller may be configured to generate the compensated signal based on the reflected light signal and an input signal (130) that represents one or more desired properties of light to be reflected from the targeted portion of the surface.

主权项

1. A lighting device, comprising:
a plurality of LEDs, each LED configured to emit light towards a targeted portion of a surface; a plurality of LED drivers to energize each of the LEDs in response to a compensated signal; a plurality of light sensors, each said light sensor configured to measure light reflected from a targeted portion of the surface and to generate a reflected light signal that represents one or more properties of the reflected light; and a controller operably coupled with the plurality of LED drivers and the plurality of light sensors, the controller configured to generate the compensated signal based on the reflected light signals and input signals that represent one or more desired properties of light to be reflected from the targeted portions of the surface, wherein the compensated signal is configured to evenly distribute light emitted by the plurality of LEDs to the targeted portions of the surface.