Magneto-optical holographic 3D display with wide viewing angle using microlens array and digital mirror device
| Autor: | Sena Yamagishi, Yasutoshi Ito, Yuta Yamamoto, Yota Kimura, Hiroyuki Takagi, Shinichiro Mito, Hideyoshi Horimai, Mitsuteru Inoue, Hironaga Uchida |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Japanese Journal of Applied Physics. 62:SB1016 |
| ISSN: | 1347-4065 0021-4922 |
| DOI: | 10.35848/1347-4065/aca7ce |
| Popis: | We developed a three-dimensional (3D) holographic display using the magneto-optical effect. The system uses a microlens array to reduce the area size of light reflected from pixels of a digital mirror device to approximately 1 μm and write in parallel to a magnetic recording medium as hologram data. This method makes it possible to write over a wide area even with a piezo stage that has high resolution but a narrow range of movement. The holograms, written at a pixel pitch of 1.1 um, enabled the reconstruction of 3D images with a wide viewing angle of 26.7 deg. By avoiding abrupt directional changes of the piezo stage, the image quality was improved by eliminating line defects in the written holograms; image distortion was reduced by setting the incident angle of the reference light in the program of a computer-generated hologram to match the model and the reconstructing optical system. Image distortion was reduced by improving the program of the computer-generated hologram. |
| Databáze: | OpenAIRE |
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