logo

For the Inventor, By the Inventor

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 10809449 B1

PDFFull Text
Date of Patent:
Oct. 20, 2020

Filed:

Nov. 19, 2018

Waveguide tube including light-shielding film and method for manufacturing same

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Areum Kim, Daejeon, KR;

Jaehyun Yoo, Daejeon, KR;

Sungeun Park, Daejeon, KR;

Joonhyung Kim, Daejeon, KR;

Assignee:

LG Chem, Ltd., , KR;

Attorney:

Lerner, David, Littenberg, Krumholz & Mentlik, LLP

Primary Examiner:

Daniel Petkovsek

Int. Cl.
CPC ...
G02B 27/01 (2006.01); F21V 8/00 (2006.01); C09C 1/48 (2006.01); G06T 19/00 (2011.01); G02B 27/00 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0065 (2013.01); G02B 6/0011 (2013.01); G02B 27/0101 (2013.01); G02B 27/0172 (2013.01); C09C 1/48 (2013.01); G02B 27/0018 (2013.01); G06T 19/006 (2013.01);
Abstract

A waveguide and a method for manufacturing the same are disclosed herein. In an embodiment, the waveguide includes a waveguide tube and a light-shielding film disposed on a cutsurface of the rim side of the waveguide tube. The light-shielding film has a thickness of 2 to 120 μm, an optical density (OD) of 0.01 to 0.7 on the basis of a light-shielding film thickness of 1.0 μm, and a hardness of 3H or more in accordance with ASTM D3363 standard.

Find Patent Forward Citations

Kim, Areum. (2020). Waveguide tube including light-shielding film and method for manufacturing same (U.S. Patent No. 10809449). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10809449

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…