04588258 is referenced by 310 patents and cites 12 patents.

Cube-corner retroreflective articles having improved angularity along multiple viewing planes are provided. The articles comprise at least one matched pair of cube-corner retroreflective elements which are rotated 180.degree. with respect to one another, the three lateral mutually perpendicular faces of the elements being defined at their bases by linear edges that lie in a common plane, and the optical axes of the elements being tilted toward one another.

Title
Cube-corner retroreflective articles having wide angularity in multiple viewing planes
Application Number
531349
Publication Number
4588258
Application Date
July 30, 1984
Publication Date
May 13, 1986
Inventor
Timothy L Hoopman
River Falls
WI, US
Agent
Roger R Tamte
James A Smith
Donald M Sell
Assignee
Minnesota Mining and Manufacturing Company
MN, US
IPC
G02B 5/124
G02B 5/122
View Original Source