Eastman-kodak Company

Thomas W McKeehan

Howard P Jehan

Gary A Smith

Brian A Reed

Eugene R Clemons

Charles C Marshall

Wayne D Martin

A system for measuring the conductivity of a flexible media positioned between a conductive backing and a conductive roller, wherein the conductive roller contacts the flexible media in a roller contact region. A pressure control mechanism presses the conductive roller against the second surface of the flexible media with a specified contact pressure, and a motion control system provide a relative motion between the conductive roller and the flexible media. A resistance measuring system connected to the conductive roller and the conductive backing measures the conductivity of the flexible media within the roller contact region. A data recording system records the measured conductivity of the media as a function of position.

Media conductivity measurement system

Radiant energy is directed from a source (14,16) to an illumination plane (28) where the light receiving ends of groups (36) of optic fibers are arranged in coplanar striations (100), after which the radiant energy passes through the groups of optic fibers into individual exposure columns (40) and on to an exposure plane (42) where a radiation sensitive sample is exposed in individual areas to different, readily adjustable levels of illuminance from each of the groups of optic fibers.

Apparatus and method for precisely exposing radiation sensitive materials

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Pittsford, NY, United States of America

Thomas W McKeehan