On a study of holographic image projection by blue-violet color laser light employed with an improved mist screen

Kunihiko Takano; Tetsushi Oiwa; Kaketu Fukushima; Itta Kajimura; Haruchika Ono; Kazuyuki Takasaki; Ryoji Wakabayashi; Tomohiro Endo; Koki Sato; Kikuo Asai

doi:10.1117/12.2666245

25 March 2023 On a study of holographic image projection by blue-violet color laser light employed with an improved mist screen

Kunihiko Takano, Tetsushi Oiwa, Kaketu Fukushima, Itta Kajimura, Haruchika Ono, Kazuyuki Takasaki, Ryoji Wakabayashi, Tomohiro Endo, Koki Sato, Kikuo Asai

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Proceedings Volume 12592, International Workshop on Advanced Imaging Technology (IWAIT) 2023; 125920T (2023) https://doi.org/10.1117/12.2666245
Event: International Workshop on Advanced Imaging Technology (IWAIT) 2023, 2023, Jeju, Korea, Republic of

Abstract

Spatial projection of holographic reconstructed images by blue-violet laser light is stated. Studied results are reported. Firstly, construction of mist screen is introduced, and the conditions under which optical characteristics of the screen will be improved are reported. Evaluation of improved situation is carried out by objective and subjective evaluating technics. Reconstructed images obtained by projecting blue-violet laser light are shown, and a relation between the usage of two kinds of fans and the quality of the projected images (brightness and stability) is studied. It is carried out by combining optical characteristics (objective evaluation), subjective evaluation and automatic decision making based on image analyzing process. By this, a certain relation is seen to exist between the result derived from each of the evaluating processes and the projected image judged as "good". Using this result, it is found that a clear projection of the images by blue-violet laser light is really possible.

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Kunihiko Takano, Tetsushi Oiwa, Kaketu Fukushima, Itta Kajimura, Haruchika Ono, Kazuyuki Takasaki, Ryoji Wakabayashi, Tomohiro Endo, Koki Sato, and Kikuo Asai "On a study of holographic image projection by blue-violet color laser light employed with an improved mist screen", Proc. SPIE 12592, International Workshop on Advanced Imaging Technology (IWAIT) 2023, 125920T (25 March 2023); https://doi.org/10.1117/12.2666245

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KEYWORDS

Displays

Fluctuations and noise

3D image reconstruction

Image restoration

Blue lasers

Image processing

Holography

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