The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 08, 2002
Filed:
Nov. 30, 1999
Applicant:
Inventor:
Gerold W. Neudeck, West Lafayette, IN (US);
Assignee:
Purdue Research Foundation, West Lafayette, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/122 ;
U.S. Cl.
CPC ...
G02B 5/122 ;
Abstract
A corner cube array device ( ) is disclosed having a silicon substrate ( ) with a generally cubic crystal lattice. A number of silicon crystal projections ( ) extend from the substrate ( ). The projections ( ) each have three generally planar surfaces, as exemplified by surfaces ( ) of projection ( ), to provide a cube corner shape. Projections ( ) are spaced apart from each other in accordance with a predetermined spatial pattern to define a cube corner array ( ) suitable for optical device applications and the mass production of articles having a substantially similar corner cube array shape.