Projecting system and its photoconductor tube

Abstract

The invention discloses a light guide tube comprising a plurality of optical assemblies and an adhesive. One end of at least one optical assembly has a first concave portion. The adhesive is used to bond the optical assemblies to form a light channel and at least part of the adhesive is disposed in the first concave portion. The invention also discloses a projection system.

Description

technical field [0001] The invention relates to a display system and its light guide, in particular to a projection system and its light guide. Background technique [0002] Due to the multiple requirements of large display area, miniaturization and lightweight systems, image projection systems have become one of the most popular sub-items in the optoelectronic industry. [0003] see figure 1 As shown, the image projection system is referred to as the projection system 1 for short here, and it has a light source 10, a color wheel assembly 11, a light guide (Light Tunnel) 12, a lens assembly 13, a digital micro-mirror assembly (Digital Micro-mirror) Device, DMD) 14 and a projection unit 15. The light source 10 emits light to the color wheel assembly 11 and then enters the light guide 12, then focuses it on the digital micromirror assembly 14 through the lens assembly 13, and controls most of the micromirrors on the digital micromirror assembly 14 by driving electrodes (not ...

AI Technical Summary

Problems solved by technology

When too much adhesive 122 is used, after curing, the thickness of the adhesive 122 will easily affect the alignment accuracy of the optical components 121, thereby affecting the uniformity of light

In addition, when assembling the light pipe 12, the adhesive 122 may also overflow into the inner surface of the light pipe 12, thereby affecting the light quality of the light pipe 12, which really needs to be improved.

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