Stereoscopic display apparatus using cylindrical screen

Optical: systems and elements – Holographic system or element – For producing or reconstructing images from multiple holograms

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359 22, 359562, G03H 126, G02B 2746

Patent

active

055899579

ABSTRACT:
A diffraction light modulated by a plane type phase distribution display device is deflected by an image formation optical system and is formed as an image onto a cylindrical screen surface and is diffused in the vertical direction by a unidirectional light diffusing section such as a lenticular lens or the like, so that a stereoscopic image can be seen. As a phase distribution display device, a liquid crystal device having pixels on the order of the wavelength in the circumferential direction and having coarse pixels in the radial direction is used. Thus, it is equivalent to that the phase distribution display device is located on the cylindrical surface. A cylindrical stereoscopic display can be performed by using the plane phase distribution display device.

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