Invention Grant
- Patent Title: Methods for fabricating retroreflector tooling and retroreflective microstructures and devices thereof
- Patent Title (中): 用于制造后向反射器工具和回射微结构的方法及其装置
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Application No.: US13428882Application Date: 2012-03-23
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Publication No.: US09050762B2Publication Date: 2015-06-09
- Inventor: Steven Scott
- Applicant: Steven Scott
- Applicant Address: US CT Avon
- Assignee: Orafol Americas Inc.
- Current Assignee: Orafol Americas Inc.
- Current Assignee Address: US CT Avon
- Agency: LeClairRyan, a Professional Corporation
- Main IPC: G02B5/124
- IPC: G02B5/124 ; B29D11/00

Abstract:
Methods for producing retroreflector tooling and retroreflective sheeting using laser writing techniques, and corresponding products thereof, are presented. In one embodiment, a seamless retroreflective sheet having a plurality of retroreflectors formed in a continuous retroreflective 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 retroreflective microstructured pattern on the surface of the substrate. The retroreflective microstructured pattern is then transferred into retroreflector tooling comprising the retroreflective microstructured pattern on a surface thereof. A retroreflective sheet containing the retroreflective microstructured pattern on a surface thereof is then formed from the retroreflector tooling.
Public/Granted literature
- US20130250418A1 METHODS FOR FABRICATING RETROREFLECTOR TOOLING AND RETROREFLECTIVE MICROSTRUCTURES AND DEVICES THEREOF Public/Granted day:2013-09-26
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