DIFFUSION LENS STRUCTURE FOR LIGHT SOURCE, CAPABLE OF CONTROLLING DIFFUSION ANGLE

摘要

Provided is a diffusion lens structure for a light source, capable of controlling a diffusion angle. The diffusion lens structure for a light source, capable of controlling a diffusion angle, according to one embodiment of the present invention comprises: a substrate for transmitting light; and a plurality of microlenses arranged on one side of the substrate, wherein the plurality of microlenses have different sizes from each other, the plurality of microlenses are similar to each other, one cross section of the plurality of microlenses takes a spherical or elliptical shape and the height of the plurality of microlenses gradually increases or decreases from the center of the substrate toward the periphery.

主权项

1. A diffusion lens structure for light source, which allows to adjust a diffusion angle, comprising:
a substrate which transmits light; and a plurality of micro lenses which are arranged on one surface of the substrate, wherein the micro lenses are sized different and are shaped similar with each other, and one cross section of each of the micro lenses is formed spherical or elliptical, and the heights of the micro lenses gradually increase or decrease in a direction from a central portion of the substrate to its outer portion.