Title: Cube-corner retroreflective article of prism
Application Number: 95195906 Application Date: 1995.09.18
Publication Number: 1169780 Publication Date: 1998.01.07
Approval Pub. Date: 2002.10.09 Granted Pub. Date: 2002.10.09
International Classifi-cation: G02B5/124
Applicant(s) Name: Reflexite Corp. Address:
Inventor(s) Name: Robert B. Nilsen
Attorney & Agent: CHENG WEI
Abstract:
    Cube-corner retroreflective articles having wide observation angle performance, uniform orientation angle performance and wide angularity in multiple viewing planes are provided by very small (0.0005 inch to less than 0.0006 inch) size prism elements (10) in which pairs (10A, 10B) of such elements are tilted; preferably in a negative direction. In an alternate embodiment, retroreflective prisms are formed with windows (10F) thereon by removing a portion of the prism mold and leaving the apex of the prism intact. In this manner smaller prisms are formed adjacent larger prisms.
Time: 8