Coating processes – Optical element produced – Polarizer – windshield – optical fiber – projection screen – or...
Patent
1996-02-16
1997-11-04
Beck, Shrive
Coating processes
Optical element produced
Polarizer, windshield, optical fiber, projection screen, or...
427137, 404 14, B05D 506
Patent
active
056837461
ABSTRACT:
An improved pavement marking sheet material, and a method for making such pavement marking sheet material. The pavement marking sheet material comprises a selected configuration of upright retroreflectors. The upright retroreflectors are arranged in a selected configuration so as to maximize reflectivity as measured at actual observation geometries by allowing light to be incident to effective portions of the retroreflective elements on the upright retroreflectors.
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Transportation Research Record No. 1409, "Correlation of the Nighttime Visibility of Pavement Marking Tapes With Photometric Measurement," National Academy Press, Washington, D.C., 1993 (no month).
ASTM D 4061-89, Standard Test Method for Retroreflectance of Horizontal Coatings (no date).
ASTM E 808-91, Standard Practice for Describing Retroreflection (no date).
Bradshaw T. Ian
Hedblom Thomas P.
Beck Shrive
Griswold Gary L.
Jensen Stephen C.
Kirn Walter N.
Meeks Timothy
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