Holographic display module for displaying machine status

Details Holographic display module for displaying machine status Holographic display module for displaying machine status

1988-07-15

1990-01-30

Arnold, Bruce Y.

Photocopying

Contact printing

Light boxes

350 36, 355 2, 340715, G03H 122

Patent

active

048969290

ABSTRACT:
A holographic display module is incorporated into a machine with independently operating subsystems, and used to provide an indication of the status or location of the machine subsystems. In one embodiment, a xerographic copier incorporates a holographic display incorporating an outline of the machine. A liquid crystal panel is aligned with the holographic display and selectively addressed in conjunction with signals from the copier subsystems. An illumination subsystem is optimized to provide diffuse illumination of the display.

REFERENCES:
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patent: 4475806 (1984-10-01), Daughton et al.
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patent: 4527864 (1985-07-01), Dir
patent: 4594572 (1986-06-01), Haubner et al.
patent: 4609919 (1986-09-01), Miyazaki et al.
patent: 4730881 (1988-03-01), Taguchi et al.
patent: 4790613 (1988-12-01), Moss
patent: 4795223 (1989-01-01), Moss
"Holographic Stereograms Generated With a Liquid Crystal Spatial Light Modulator", J. R. Andrews et al., SPIE, Jan. 1988.

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