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:
Dec. 16, 2014
Filed:
Mar. 14, 2013
Younger Mfg. Co., Torrance, CA (US);
David Mark Ambler, Rancho Palos Verdes, CA (US);
Indizen Optical Technologies, SLL., Madrid, ES;
Abstract
The present invention is embodied in an eyewear lens with at least two controlled, limited visible light blocking filters that attenuate its transmittance spectrum. More specifically, in the present invention, the eyewear lens attenuates limited amounts of light in at least two visible wavelength regions via controlled, limited blocking filters, wherein the overall luminous transmittance is at least 75%. The at least two controlled, limited blocking filters have their peak blocking wavelengths in the region of 410-500 nm and 530-620 nm, respectively. In a preferred embodiment, the minimum transmittance that occurs within the 410-500 nm region is ≧55% and the minimum transmittance that occurs within the 530-620 nm region is ≧65%. In another preferred embodiment, the eyewear lens comprises an anti-reflective coating on its inner surface (the eye-side of the lens).