Design of optical system for head-mounted micro-display |
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Authors: | Qiu-Ling Zhao Zhao-Qi Wang Tie-Gen Liu |
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Affiliation: | aCollege of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Key Laboratory of Opto-Electronics Information and Technical Science, MEC, Tianjin 300072, China;bInstitute of Modern Optics, Nankai University, Tianjin 300071, China |
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Abstract: | Assembling one optical imaging system with 0.56″ liquid crystal on silicon (LCOS), we achieved one practical head-mounted micro-display system for civilian applications. The optical system consists of three refractive elements and one binary surface. It has a 32° field of view (FOV), a 10 mm exit pupil diameter, and a 20 mm eye clearance distance. Compared with the traditional optical system, the hybrid refractive/diffractive system has a longer working distance and can be used in higher resolution display with better image quality. Designing results indicate that the introducing of binary element in the system with smaller FOV could improve the image quality dramatically. |
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Keywords: | Head-mounted display Binary optics Micro-display LCOS |
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