Image display apparatus having a beam combiner for superimposing

Details Image display apparatus having a beam combiner for superimposing Image display apparatus having a beam combiner for superimposing

1993-12-07

1997-04-29

Epps, Georgia Y.

Optical: systems and elements

Single channel simultaneously to or from plural channels

By partial reflection at beam splitting or combining surface

359633, G02B 2714

Patent

active

056254938

ABSTRACT:
An image display apparatus includes an image generator for generating first light having image information, and a beam combiner for superimposing the first light and second light which is incident upon the beam combiner from a direction different from that of the first light, and for guiding the superimposed light to a pupil of an observer. Also provided is a reflector positioned in a direction different from the incident direction of the second light on the beam combiner. The first light is incident upon the reflector via the beam combiner, and is reflected back to the beam combiner after being reflected by the reflector.

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