Personal video viewing device

Optics: image projectors – Plural projection paths with single light source

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Details

350133, 353 7, 358 88, G02B 2722

Patent

active

048059889

ABSTRACT:
A personal video viewing device is provided which allows the simultaneous viewing of a stereoscopic external image as well as a monoscopic electronic image. This is accomplished using two optical systems which share particular components. The relative intensity of both images may be adjusted using a three-iris system where each iris may be a mechanical diaphragm, an electronically controlled liquid crystal device, or a pair of polarized discs whose relative rotational orientation controls the transmissivity of the disc pair.

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