Optical projection system

Abstract

The present invention relates to an optical projection system which comprises DLP display units and a video processing unit. Each of the DLP display units comprises a box body, an optical machine and a rear projection screen. The optical machine comprises a lens. The light which goes through the optical machine is projected to the rear projection screen through a lens. The video processing unit comprises a bottom plate and a core plate. The bottom plate comprises a video access end and a connection device. The video access end receives a video image signal. The core plate comprises a signal interface and a memory. The connection device is connected to the bottom plate and the core plate respectively. The signal interface is connected to the optical machine. The memory is used for storing a correction parameter after a video image is corrected. Through storing the parameter of the geometrically adjusted video image into the core plate, the six-axis adjustment of each of the DLP display units in the production process is not needed, and the large-scale production is facilitated. At the same time, the bias generated in the condition that a later six-axis is influenced by gravity and external force is avoided.

Description

technical field [0001] The invention relates to an optical projection system, in particular to a DLP projection system. Background technique [0002] DLP is the abbreviation of "Digital Light Procession", that is, digital light processing, which means that this technology first processes the image signal digitally, and then projects the light. DLP technology is an original solution for producing digital multi-light source displays using optical semiconductors. It is an all-digital display technology with high reliability, which can provide the best image effect in various products such as large-screen digital TV, company / home / professional conference projector and digital camera (DLPCinema). At the same time, this solution is also a fully mature independent technology adopted by many electronics companies around the world. [0003] In the DLP display unit, there is a deviation between the installation position of the optical machine and the housing, which leads to the situa...

AI Technical Summary

Problems solved by technology

[0003] In the DLP display unit, there is a deviation between the installation position of the optical machine and the housing, which leads to the situation that the graphics cannot be accurately displayed on the screen. The traditional solution is to adjust the six axes of the reinforced optical machine and fine-tune the distance and left and right of the optical machine. position to ensure that the projected image fits the size of the screen

The method of adjusting the six-axis requires high experience of workers, which is not conducive to mass production, especially the position deviation of the optical machine caused by transportation or natural settlement in the later stage

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