Displayer with holograms

Details Displayer with holograms Displayer with holograms

1991-08-30

1993-12-28

Lerner, Martin

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 19, 359 22, 359 33, G02B 532, G03H 126

Patent

active

052744787

ABSTRACT:
A displayer for use in a computer comprising a main body, a CRT mounted in the main body and generating an image in an electromagnetic beam, a pair of holograms for projecting the image from the CRT, the holograms mounted in the main body, and a screen for displaying the image projected by the holograms thereon, the screen mounted at a position at which the image is last projected by the holograms. The present invention provides a displayer which provides advantages in that the harmful electromagnetic waves generated from the CRT does not affect the operator by virtue of the holograms, and a screen of a desired large size is obtained at lower cost.

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patent: 4309070 (1982-01-01), St. Leger Searle
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patent: 5035473 (1991-07-01), Kuwayama et at.
patent: 5037166 (1991-08-01), Malcolm et al.

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