Led illumination control systems and methods
OwnerWing Kong Loinventor
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Abstract
An illumination apparatus has a circular base plate and a plurality of tracks arranged radially about the base plate. LED modules are disposed upon the tracks, and transmission members coupled to the LED modules move the LED modules along the tracks. A distance measurement sensor is mounted on one side of the base plate, and is used to measure a distance value of an illuminated object. A processor is configured to determine a desired radius value for the plurality of LED modules based on the distance value and move the transmission members according to the desired radius value.
Claims12
An illumination apparatus useful for a machine vision system, comprising:
- a plurality of tracks of equivalent shape and size supported by a circular base plate, the tracks arranged radially about the base plate;
- a plurality of LED modules, each LED module disposed upon one of the plurality of tracks;
- a plurality of transmission members for moving the plurality of LED modules along the plurality of tracks, wherein each transmission member is coupled with one of the plurality of LED modules;
- a distance measurement sensor mounted on one side of the base plate for measuring a distance value of an illuminated object;
- and
- a processor configured to determine a desired radius value for the plurality of LED modules based on the distance value and move the transmission members according to the desired radius value.
A method for a machine vision system comprising a circular base plate having a plurality of LED modules, comprising:
- obtaining a distance value using a distance measurement sensor;
- determining a desired radius value based on the distance value;
- determining desired positions for the LED modules based on the desired radius value;
- and
- moving the LED modules according to the desired positions.
Dependencies are inferred from the claim text.