Freeform optical substrates in waveguide displays

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United States of America Patent

PATENT NO 11720016
APP PUB NO 20220357654A1
SERIAL NO

17315613

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Abstract

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Embodiments of the present disclosure generally relate to methods of forming a substrate having a target thickness distribution at one or more eyepiece areas across a substrate. The substrate includes eyepiece areas corresponding to areas where optical device eyepieces are to be formed on the substrate. Each eyepiece area includes a target thickness distribution. A base substrate thickness distribution of a base substrate is measured such that a target thickness change can be determined. The methods described herein are utilized along with the target thickness change to form a substrate with the target thickness distribution.

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Patent Owner(s)

  • APPLIED MATERIALS INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bhargava, Samarth Saratoga, US 57 309
Sell, David Santa Clara, US 12 84

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