Light guide element and method for manufacturing the same, and lighting fixture

摘要

A light guide element and a method for manufacturing the same, and a lighting fixture are described. The light guide element includes a light guide body, a plurality of first and second microstructures corresponding to each other. The light guide body includes a first and a second light-emitting surface opposite to and parallel to each other. The first and second microstructures are respectively disposed on the first and second light-emitting surfaces by a first arrangement rule based on a first datum line and a second arrangement rule based on a second datum line. The first datum line is different from the second datum line. In a normal direction of the first light-emitting surface, each second microstructure laps over the corresponding first microstructure in part. When an incident light enters the light guide body, a first and a second mesh patterns are respectively formed on the first and second light-emitting surfaces.

主权项

1. A method for manufacturing a light guide element, including:
providing a light guide body, wherein the light guide body includes a first light-emitting surface and a second light-emitting surface opposite to and parallel to each other; disposing a plurality of first microstructures on the first light-emitting surface by a first arrangement rule based on a first datum line; and disposing a plurality of second microstructures on the second light-emitting surface by a second arrangement rule based on a second datum line, wherein the first datum line is different from the second datum line, an included angle is formed between the second datum line and the first datum line, the second microstructures are respectively corresponding to the first microstructures, wherein in a normal direction of the first light-emitting surface, each of the second microstructures laps over the corresponding first microstructure in part, and when an incident light enters the light guide body, a first mesh pattern and a second mesh pattern are respectively formed on the first light-emitting surface and the second light-emitting surface.