Dr. Guangshen Xu Profile

Dr. Guangshen Xu

at Xi'an Polytechnic Univ

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Proceedings Article | 22 July 2010 Paper

Research of optical imaging system for integral stereolithography system

Guangshen Xu, Jian Yang, Jing Jin, Sheng Luo

Proceedings Volume 7749, 774915 (2010) https://doi.org/10.1117/12.871542

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The development of integral SL system with low cost for fabrication small size object has important significance, and dynamic pattern generator is the key component for a integral SL system. To set up the dynamic pattern generator using digital micro-mirror device (DMD), an optical imaging system, which produces Section pattern of a object on working plane and solidifies photo curable resin, has been designed. The optical imaging system consists of two components. The component 1 is made up of 3 positive lenses, and the component 2 consists of a negative lens, two positive lenses and a aperture. To reduce the coma and astigmatism of the image produced with the optical imaging system, the aperture position is optimized with soft ZEMAX. The best location for the stop is 1 mm before the second lens in component 2. As a result, the coma is 3.7 wavelengths, and astigmatism is -0.18 wavelengths. The design of the optical imaging system lays a foundation for set-up low-cost integral SL system.

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