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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11220028 B1

PDFFull Text
Date of Patent:
Jan. 11, 2022

Filed:

Mar. 08, 2018

Method of manufacture for thin, multi-bend optics by compression molding

Applicant:

Facebook Technologies, Llc, Menlo Park, CA (US);

Inventors:

Nelson Cardenas, Seattle, WA (US);

Yusufu Njoni Bamaxam Sulai, Bothell, WA (US);

Alexander Sohn, Seattle, WA (US);

Jacques Gollier, Redmond, WA (US);

Kurt Jenkins, Sammamish, WA (US);

Assignee:

FACEBOOK TECHNOLOGIES, LLC, Menlo Park, CA (US);

Attorney:

Weaver Austin Villeneuve & Sampson LLP

Primary Examiner:

Matthew J Daniels

Assistant Examiner:

Paul Spiel

Int. Cl.
CPC ...
B29C 43/36 (2006.01); B29C 43/02 (2006.01); B29C 43/52 (2006.01); B29K 33/00 (2006.01); B29K 69/00 (2006.01); B29K 105/00 (2006.01); B29L 11/00 (2006.01); B29C 43/56 (2006.01);
U.S. Cl.
CPC ...
B29C 43/36 (2013.01); B29C 43/02 (2013.01); B29C 43/52 (2013.01); B29C 43/56 (2013.01); B29C 2043/563 (2013.01); B29K 2033/12 (2013.01); B29K 2069/00 (2013.01); B29K 2105/256 (2013.01); B29L 2011/00 (2013.01);
Abstract

A method for manufacturing thin, multi-bend optics includes placing an optical substrate and a protective sheet into a compression mold and closing the compression mold to deform the optical substrate and to deform the protective sheet. The optical substrate can include an optical surface and the protective sheet can be disposed between the compression mold and the optical surface of the optical substrate. The compression mold can include a mold contact surface that is characterized by a surface roughness. The compression mold can be held in a closed position for a compression time period, during which, the protective sheet contacts the mold contact surface and provides a buffer layer between the mold contact surface and the optical surface thereby mitigating against transfer of the surface roughness of the mold contact surface onto the optical surface.

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Cardenas, Nelson. (2022). Method of manufacture for thin, multi-bend optics by compression molding (U.S. Patent No. 11220028). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11220028

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