Light guide assembly and optical system

Abstract

The invention provides a light guide assembly which comprises a light guide rod, a rotating part and a driving assembly, wherein the rotating part is connected to the exterior of the light guide rod in a sleeving mode and is fixedly connected with the light guide rod, and the driving assembly drives the rotating part to rotate. The light guide rod is used for uniformizing light, the rotating part drives the light guide rod to rotate around an axis parallel to the long axis direction of the light guide rod when the rotating part rotates, and the light which is guided out when the light guide rod rotates forms a circular light spot. The invention further provides an optical system which comprises a light source and the light guide assembly, wherein the light guide assembly receives the light emitted by the light source. According to the provided light guide assembly and the provided optical system, the light guide rod is driven to rotate through the rotating part, and therefore a non-circular light spot can be converted into the circular light spot with the larger area and the better light uniformizing effect, and the application requirements are met.

Description

technical field [0001] The invention relates to the field of optics, in particular to a light guide component and an optical system. Background technique [0002] In the lighting field, it is generally required that the illumination spot emitted by the light source be a uniform circular spot. However, the existing uniform light elements include square light guide rods and circular light guide rods. Round shape, among them, the homogenization effect of the square light guide rod is better than that of the circular light guide rod. In the existing optical system, the square light guide rod is generally used for uniform light to obtain a uniform illumination spot. [0003] In order to obtain a circular light spot, one way is to use a square-to-circle integrated light guide rod, or a combination of a square light guide rod and a circular light guide rod. The main problem is that the light spot will appear light and dark patterns; the other The method is to arrange a circular g...

AI Technical Summary

Problems solved by technology

[0003] In order to obtain a circular light spot, one way is to use a square-to-circle integrated light guide rod, or a combination of a square light guide rod and a circular light guide rod. The main problem is that the light spot will appear light and dark patterns; the other The method is to set a circular gobo on the exit light path of the light source. The main problem is that the light utilization rate is low.

Images