The analysis of optical-electro collimated light tube measurement system

Zhenhui Li; Tao Jiang; Guohua Cao; Yanfei Wang

doi:10.1117/12.666841

9 December 2005 The analysis of optical-electro collimated light tube measurement system

Zhenhui Li, Tao Jiang, Guohua Cao, Yanfei Wang

Proceedings Volume 6024, ICO20: Optical Devices and Instruments; 60240Z (2005) https://doi.org/10.1117/12.666841
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

Abstract

A new type of collimated light tube (CLT) is mentioned in this paper. The analysis and structure of CLT are described detail. The reticle and discrimination board are replaced by a optical-electro graphics generator, or DLP-Digital Light Processor. DLP gives all kinds of graphics controlled by computer, the lighting surface lies on the focus of the CLT. The rays of light pass through the CLT, and the tested products, the image of aim is received by variant focus objective CCD camera, the image can be processed by computer, then, some basic optical parameters will be obtained, such as optical aberration, image slope, etc. At the same time, motorized translation stage carry the DLP moving to simulate the limited distance. The grating ruler records the displacement of the DLP. The key technique is optical-electro auto-focus, the best imaging quality can be gotten by moving 6-D motorized positioning stage. Some principal questions can be solved in this device, for example, the aim generating, the structure of receiving system and optical matching.

Citation Download Citation

Zhenhui Li, Tao Jiang, Guohua Cao, and Yanfei Wang "The analysis of optical-electro collimated light tube measurement system", Proc. SPIE 6024, ICO20: Optical Devices and Instruments, 60240Z (9 December 2005); https://doi.org/10.1117/12.666841

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