Display device

Details Display device Display device

1998-07-22

1999-11-30

Manuel, George

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

A61B 310

Patent

active

059930004

ABSTRACT:
A display device provides a virtual image for eyes of an observer. The display has a light source which emits light based on an image signal, scanner which scans the light, an eyepiece optical system which projects the scanned light onto an eye of the observer as a virtual image, detector which detects a pupil size of the observer, and regulator means which regulates a quantity of light projected onto the eye of the observer based on the detected pupil size.

REFERENCES:
patent: 4420228 (1983-12-01), Humphrey
patent: 5355181 (1994-10-01), Ashizaki et al.
patent: 5790235 (1998-08-01), Kirschbaum

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