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.

Date of Patent:
Mar. 06, 2018

Filed:

Apr. 30, 2015
Applicant:

Orafol Americas Inc., Avon, CT (US);

Inventor:

Steven Scott, Avon, CT (US);

Assignee:

Orafol Americas Inc., Avon, CT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/124 (2006.01); G03F 7/20 (2006.01); G03F 7/30 (2006.01);
U.S. Cl.
CPC ...
G03F 7/2059 (2013.01); G02B 5/124 (2013.01); G03F 7/30 (2013.01);
Abstract

Methods for producing tooling and sheeting using laser writing techniques, and corresponding products thereof, are presented. In one embodiment, a seamless sheet having a plurality of microstructures formed in a continuous microstructured pattern is provided. In the methods described herein, a substrate having a photosensitive coating on a surface thereof is provided. A surface-relief microstructured pattern is produced in the photosensitive coating by selectively exposing the photosensitive coating to a beam of electromagnetic radiation. The exposed portions of the photosensitive coating are developed to form a microstructured pattern on the surface of the substrate. The microstructured pattern is then transferred into retroreflector tooling comprising the microstructured pattern on a surface thereof. A sheet containing the microstructured pattern on a surface thereof is then formed from the retroreflector tooling.


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