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:
Jun. 13, 2023
Filed:
Dec. 23, 2016
Transitions Optical, Ltd., Tuam, IE;
Transitions Optical, Ltd., Tuam, IE;
Abstract
A method of producing an optical article includes applying an imbibition composition having at least one dye onto at least a portion of at least one imbibable surface () of a substrate () to form a coated substrate (). The method further includes irradiating at least a portion of the coated substrate with heat from a heat source () to form a heat gradient across the coated substrate () to diffuse the at least one dye into the imbibable surface to form an at least partially imbibed substrate having a dye concentration gradient corresponding to the heat gradient. The method further includes removing a residual component of the imbibition composition from the at least partially imbibed substrate. The dye concentration gradient forms a gradient pattern upon exposure to actinic radiation.