Spliced optical imaging system

Abstract

The invention provides a spliced optical imaging system, which comprises a first display assembly (100) provided with a first micro-display chip and arranged along a first optical path, a second display assembly (101) provided with a second micro-display chip and arranged along a second optical path, and a polarization beam combination assembly (102) located at the intersection of the first optical path and the second optical path. The first optical path and the optical path are perpendicular to each other. An image displayed by the first display assembly (100) and an image displayed by the second display assembly (101) are subjected to the polarization beam combination assembly (102) to realize the imaging on the same imaging plane. The spliced optical imaging system effectively achievesthe seamless splicing of co-focal-plane and uniform-amplitude images. Therefore, the use requirement of a larger area array can be met. Meanwhile, the splicing precision and the contrast ratio are higher.

Description

technical field [0001] The invention relates to the field of optical technology, in particular to a spliced ​​optical imaging system applied to a dynamic star simulator. Background technique [0002] With the gradual development and improvement of the aerospace field and the improvement of ground supporting detection and calibration equipment technology, the dynamic star simulator is used as a calibration inspection equipment for simulating starry sky images in this type of equipment, and its accuracy and resolution are also developing day by day. . [0003] The stitching high-resolution optical imaging system is the core display module in the dynamic star simulator, and its stitching accuracy, resolution and contrast directly determine the performance of the dynamic star simulator. [0004] Due to the production and processing limitations of micro-display devices such as TFT-LCD, DMD, and LCOS in the field of micro-displays, it is difficult to produce large-scale, high-res...

AI Technical Summary

Problems solved by technology

[0005] The current mainstream splicing optical imaging system mainly uses a single PBS prism (polarization beam splitter) and a micro-display chip for imaging. Due to the imperfection of optical components and the secondary reflection inside a single PBS prism, the existing Although this type of splicing optical imaging system has a simple structure and is convenient for optical assembly and production and processing, it cannot effectively eliminate the splicing seams and avoid the interference of stray light, nor can it meet the requirements of higher contrast, which has become an urgent problem to be solved at present.

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