LED matrix irradiation device

摘要

The present invention relates to an LED matrix irradiation device (20) for illuminating an irradiation pattern with uniform intensity.The LED matrix illumination device is configured to refract a plurality of LEDs (22), a collimating lens (23) for collimating the light of the LED (22) in front of each LED (22) and at least a first portion of the plurality of LEDs (22) at a different angle than the light at least the second portion of the LED A photorefractive element (24) located in front of the collimator lens (23) is provided.The present invention further relates to machine vision systems, methods and computer program products.Selection diagram