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13 March 2024 Aerial display by use of plane-symmetric real-image forming optics and its modulation transfer function
Hirotsugu Yamamoto, Kazuaki Takiyama, Kenichiro Masaoka, Shiro Suyama
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Proceedings Volume 12909, Ultra-High-Definition Imaging Systems VII; 129090J (2024) https://doi.org/10.1117/12.3008945
Event: SPIE OPTO, 2024, San Francisco, California, United States
Abstract
Aerial display, which forms a real image in mid-air by converging light from a wide aperture, enables us to realize non-contact touch interfaces and glass-free augmented reality. Optical performance of an aerial display depends on its real-image-forming optics. Typical optical systems for aerial display are optical systems by use of a dihedral corner reflector array, crossed slit mirror arrays, layered micro-lens arrays, and a retro-reflector. This paper reviews optical systems for aerial display and reports the line-based MTF measurement results.
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Hirotsugu Yamamoto, Kazuaki Takiyama, Kenichiro Masaoka, and Shiro Suyama "Aerial display by use of plane-symmetric real-image forming optics and its modulation transfer function", Proc. SPIE 12909, Ultra-High-Definition Imaging Systems VII, 129090J (13 March 2024); https://doi.org/10.1117/12.3008945
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KEYWORDS
Modulation transfer functions
Microlens array
Augmented reality
Interfaces
Micromirrors
Reflectors
Retroreflectors
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