Eastman-kodak Company

Steven M Pratt

Robert P Bourdelais

Cheryl J Kaminsky

Daniel C Lioy

Edwin R Olear

Disclosed is a form comprising a surface having a morphology of complex lenses wherein the surface asperities have an amplitude of between 1 and 40 micrometers, a spatial frequency of between 1 and 100 complex lenses per square millimeter, and between 1 and 40 minor lenses per major lens. Also disclosed is a method for making such a form.

Patterned roller for the micro-replication of complex lenses

A method of characterizing the roughness of a surface comprises counting peaks on a surface using a sensor by locating direction changes above a minimum and searches for the next direction change and where three changes are found of a valley, peak and another valley, one peak is counted. A signal qualifies as a peak if its short leg is above the normal threshold.

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Hilton, NY, United States of America

Steven M Pratt