High-angularity retroreflective sheeting and method for manufacture

A new embedded-lens retroreflective sheeting which exhibits superior properties, including superior angularity, and which is made by a new method of manufacture involving lamination techniques. Microspheres (27) are embedded into a first polymeric layer (10a) to less than one-half the average diamet...

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Bibliographic Details
Main Author BAILEY, TERRY R
Format Patent
LanguageEnglish
French
German
Published 25.10.1995
Edition4
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:A new embedded-lens retroreflective sheeting which exhibits superior properties, including superior angularity, and which is made by a new method of manufacture involving lamination techniques. Microspheres (27) are embedded into a first polymeric layer (10a) to less than one-half the average diameter of the microspheres, and a pre-formed spacing film (19c) is laminated to the microsphere covered surface of the first layer so as to obtain conformation of the spacing film in a substantially constant thickness over a useful portion of the back surface of the microspheres.
Bibliography:Application Number: EP19890104136