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. 03, 2005
Filed:
Sep. 30, 2002
Peter Hones, Uster, CH;
Peter Hones, Uster, CH;
Optrel AG, Wattwil, CH;
Abstract
The glare protection device for welding applications contains an active electro-optical filter element () with an electronic control circuit (). The active filter element () absorbs the UV-radiation up to 380 nm. An IR-plastic filter () is completely joined with the active electro-optical filter element by a compact adhesive layer () and together with it forms a single optical and mechanical unit () having a high transmittance in the visual region of the spectrum. The IR-plastic filter () contains a dye that absorbs the infrared radiation in a wavelength range of 780-1400 nm. With this, a robust, cheap and safe in operation glare protection device for various applications is created.