Imaging module of projector and projector using the same

Abstract

The invention discloses an imaging module of a projector. The imaging module of the projector comprises a prism, a light modulator and a hollow connecting support frame, wherein the prism and the light modulator are connected on the front face and the back of the connecting support frame in a relatively parallel mode to form into a whole. The imaging module integrates the prism and the light modulator into a whole through the connecting support frame so as to ensure that relative positions of the prism and the light modulator are not changed, parallelism of the prism and the light modulator can be effectively ensured, and consistency of optical performance is ensured. In addition, due to the integral design, maintenance and protection of the modulator are convenient, adjustment is reduced at the same time, assembling efficiency is improved, tool equipment is simplified, and production efficiency is further improved. In addition, the invention further provides the projector using the imaging module.

Description

technical field [0001] The invention relates to projection display technology, in particular to an imaging component of a projection device and a projection device using the same. Background technique [0002] In recent years, projection technology has been widely used in audio-visual teaching, office, business, advertising and entertainment. One of the projection technologies is digital light processing (Digital Light Processing, DLP) technology, which requires digital processing of image signals before projecting light. It is based on the digital micromirror device (Digital Micromirror Device, DMD) developed by Texas Instruments (TI) to complete the technology of visual digital information display. Specifically, the DLP projection technology uses a digital micromirror chip (DMD) as the main key processing element to realize the digital optical processing process. [0003] In a commonly used DLP projection device, a traditional total internal reflection (Total Internal Re...

AI Technical Summary

Problems solved by technology

During assembly, the DMD is usually fixed on the housing of the projection device by screws, and then the total internal reflection prism is placed in the corresponding position of the housing, and the verticality of the total internal reflection prism and the parallelism with the DMD are artificially adjusted. After that, the total internal reflection prism is fixed by dispensing glue. Since the total internal reflection prism and DMD are adjusted separately by humans, the productivity is low, and the projection effect is greatly affected by human factors, and it is difficult to ensure product consistency.

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