HEAD WEARABLE DISPLAY WITH ADJUSTABLE TRANSPARENCY

HEAD WEARABLE DISPLAY WITH ADJUSTABLE TRANSPARENCY

An apparatus for providing adjustable transparency to an optical element of a head wearable display includes an electro-chromic film disposed across the optical element to adjust a transparency of the optical element to ambient light and a transparency controller coupled to control the electro-chrom...

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Hauptverfasser: PRAKASH SIMON R, HWANG TAISUP, GUPTA ANURAG, BHARDWAJ RAMESH C
Format: Patent
Sprache:eng
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OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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creator PRAKASH SIMON R
HWANG TAISUP
GUPTA ANURAG
BHARDWAJ RAMESH C
description An apparatus for providing adjustable transparency to an optical element of a head wearable display includes an electro-chromic film disposed across the optical element to adjust a transparency of the optical element to ambient light and a transparency controller coupled to control the electro-chromic film with a drive signal to decrease the transparency of the optical element as the brightness of the ambient light increases. The transparency controller includes a scaling circuit coupled to receive a power signal from a power source and coupled to output the driving signal to the electro-chromic film to control the transparency of the optical element. The scaling circuit scales the power signal to generate the driving signal. The transparency controller further includes a control circuit coupled to the scaling circuit to control the scaling applied by the scaling circuit.
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subjects OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
title HEAD WEARABLE DISPLAY WITH ADJUSTABLE TRANSPARENCY
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