3D image technique with a grating plate on high-resolution CRT

Tetsuya Shiroishi; Takafumi Nakagawa; Shuhei Nakata; Kunihiko Nishimura

doi:10.1117/12.274455

15 May 1997 3D image technique with a grating plate on high-resolution CRT

Tetsuya Shiroishi, Takafumi Nakagawa, Shuhei Nakata, Kunihiko Nishimura

Proceedings Volume 3012, Stereoscopic Displays and Virtual Reality Systems IV; (1997) https://doi.org/10.1117/12.274455
Event: Electronic Imaging '97, 1997, San Jose, CA, United States

Abstract

We propose the 3D image technique using a CRT with a grating plate. The main component of the system is a CRT, a lens and a diffraction plate. We make a composite image on the CRT. The composite image is compounded from several images taken from different view points. This image is focused on the diffraction plate through the lens. There are many pixels of the diffraction gratings that correspond to the pixels of the composite image. Each image is diffracted to different viewing areas by the diffraction gratings. Because we can see one image from each viewing area independently, we can observe 3D image. We made a test system. The size of composite image on the CRT screen is 8-inch. The composite image is compounded from four images. The size of the diffraction grating plate is 3-inch. The width and height of one viewing area is 6 cm by 6 cm and total viewing area is 24 cm by 6 cm. The system is able to divide the composite image into four images and we can observe the images that have perspective.

Citation Download Citation

Tetsuya Shiroishi, Takafumi Nakagawa, Shuhei Nakata, and Kunihiko Nishimura "3D image technique with a grating plate on high-resolution CRT", Proc. SPIE 3012, Stereoscopic Displays and Virtual Reality Systems IV, (15 May 1997); https://doi.org/10.1117/12.274455

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