Collimating lens for efficient LED illumination

Researchers at the Information Photonics Research Laboratory of the Xi'an Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, recently designed lenses for efficient LED collimation. Recently, John Wallace, editor-in-chief of the international journal Optoelectronics magazine "Laser World", made a special report on this new design method in the LED OPTICS column.

As the fourth generation of illumination source, LED is the key to achieve efficient light output and collimated illumination. John Wallace believes that researchers have designed two non-imaging LED collimating lenses in a simple and fast way, which is completely different from the complex iterative software design methods commonly used in existing LED optical designs. The collimating lens is very effective, and can focus 80% of the LED light into a cylinder of 5 meters radius and pass out a road 200 meters away from the light source.

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