Optical structures including polyurea

Details Optical structures including polyurea Optical structures including polyurea

2006-09-29

2011-12-06

Phan, James (Department: 2872)

Optical: systems and elements

Signal reflector

3-corner retroreflective

C359S534000, C359S619000, C359S742000

Reexamination Certificate

active

08070303

ABSTRACT:
Optical structures and sheeting that include polyurea and method for forming same are proposed in accordance with aspects of the present invention. One and two-component layers can be used to form the optical structures. The optical structures can include microstructures formed from polyurea. The sheeting can include at least one of cube-corner prisms, open-faced cube-corner prisms, linear prisms, lenticular lenses, moth-eye structures, lenses, Fresnel lens arrays, lenses, and fish-eye lens arrays.

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