Ambient light display illumination for a head-mounted display

Details Ambient light display illumination for a head-mounted display Ambient light display illumination for a head-mounted display

1997-11-07

1999-12-28

Epps, Georgia

Optical: systems and elements

Single channel simultaneously to or from plural channels

By partial reflection at beam splitting or combining surface

359618, 359518, 359577, G02B 2714, G02B 2710, G02B 512, G02B 2700

Patent

active

060089466

ABSTRACT:
A head mounted display in which ambient light is used to illuminate a display to at or near the brightness of the scene being viewed when both reach the user's eyes. A small supplemental light source may further be used to increase the range of operation of the display when ambient light levels are insufficient to make the display screen viewable.

REFERENCES:
patent: 3574283 (1971-04-01), Albers
patent: 4997263 (1991-03-01), Cohen et al.
patent: 5136479 (1992-08-01), Ruffner
patent: 5162828 (1992-11-01), Furness
patent: 5420828 (1995-05-01), Geiger
patent: 5479276 (1995-12-01), Herbermann
patent: 5537253 (1996-07-01), Cox
patent: 5550715 (1996-08-01), Hawkins
patent: 5576887 (1996-11-01), Ferrin et al.
patent: 5608837 (1997-03-01), Tai et al.

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