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.:
Date of Patent:
May. 26, 2020
Filed:
Jul. 10, 2019
Applicant:
Arcmask Optech Co., Ltd, Taoyuan, TW;
Inventors:
Chien-Hsing Hsieh, Taoyuan, TW;
Edward Martin, Tanuton, MA (US);
Chia-Hung Chen, Taoyuan, TW;
James Watkins, Tanuton, MA (US);
Assignee:
ARCMASK OPTECH CO., LTD., Taoyuan, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/133 (2006.01); A61F 9/06 (2006.01);
U.S. Cl.
CPC ...
G02F 1/13318 (2013.01); A61F 9/06 (2013.01); A61F 9/067 (2013.01); G02F 1/13306 (2013.01); G02F 2001/13324 (2013.01);
Abstract
A welding helmet includes a helmet shell and a lens device mounted on the helmet shell. The lens device includes a filter control module and a single LCD panel. The logic control module controls the transmittance of the single LCD panel based on a sensed light signal and a shading-level signal designated by a user. Therefore, when the welding helmet is operated in an environment having intense light such as a welding arc, the single LCD panel will turn dark and lower its transmittance to block the intense light.