FIELD: optics.
SUBSTANCE: method for manufacturing the substrate comprises obtaining a substrate with its first layer housing the forming units, the shape of which corresponds to the non-distorted optical components shape in a non-distorted optical components array and controlled localized area treatment at the first substrate layer adequate for the forming unit distortion at the treatment area including the localized area and the surrounding area. The above treatment area is an area comprising the localized area and the surrounding area. The forming units are distorted as a result of controlled treatment at the localized area, their alteration being quite different and varied depending on the distance to the localized area, the dihedral angle of at least one of the forming units not equal to 90°.
EFFECT: enhanced retroreflective material divergency.
37 cl, 8 dwg
Authors
Dates
2012-02-20—Published
2007-07-05—Filed