Patent Number: 6,168,275

Title: Retroreflective cube corner article

Abstract: A retroreflective cube corner article is manufactured by providing a substrate having a surface that includes cube corner elements formed therein, and removing at least a portion of one of the lateral faces on at least one of the cube corner elements, wherein the height of a peak on such cube corner element is reduced. Manufacture of the article can also include forming a replica of the surface of the substrate.

Inventors: Benson; Gerald M. (Woodbury, MN), Smith; Kenneth L. (White Bear Lake, MN)

Assignee: 3M Innovative Properties Company

International Classification: G02B 5/124 (20060101); G02B 5/12 (20060101); G02B 005/124 ()

Expiration Date: 01/02/2018