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17 July 2015 The optical design of ultra-short throw system for panel emitted theater video system
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Proceedings Volume 9524, International Conference on Optical and Photonic Engineering (icOPEN 2015); 952418 (2015) https://doi.org/10.1117/12.2189417
Event: International Conference on Optical and Photonic Engineering (icOPEN2015), 2015, Singapore, Singapore
Abstract
In the past decade, the display format from (HD,High Definition) through Full HD(1920X1080),to UHD(4kX2k), mainly guides display industry to two directions: one is liquid crystal display(LCD) from 10 inch to 100 inch and more, and the other is projector. Although LCD has been popularly used in market; however, the investment for production such kind displays cost more money expenditure, and less consideration of environmental pollution and protection[1]. The Projection system may be considered, due to more viewing access, flexible in location, energy saving and environmental protection issues.

The topic is to design and fabricate a short throw factor liquid crystal on silicon (LCoS) projection system for cinema. It provides a projection lens system, including a tele-centric lens fitted for emitted LCoS to collimate light to enlarge the field angle. Then, the optical path is guided by a symmetric lens. Light of LCoS may pass through the lens, hit on and reflect through an aspherical mirror, to form a less distortion image on blank wall or screen for home cinema. The throw ratio is less than 0.33.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jiun-Woei Huang "The optical design of ultra-short throw system for panel emitted theater video system", Proc. SPIE 9524, International Conference on Optical and Photonic Engineering (icOPEN 2015), 952418 (17 July 2015); https://doi.org/10.1117/12.2189417
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