Eastman-kodak Company

Jennifer A Lebaron

Thomas W Dey

Joshua Monroe Cobb

A method of adjusting a first spot size for a first color component ( ) of a multiple color co-axial laser beam ( ) that comprises, focusing the multiple color co-axial laser beam ( ). Filtering the multiple color co-axial laser beam ( ) with a filter ( ) to adjust the first spot size. The filter ( ) is opaque to the first color component ( ) in an annular region ( ) and transparent to the first color component ( ) in a center region ( ) of the multiple color co-axial laser beam ( ). The filter ( ) is transparent to a second color component ( ) of the multiple color co-axial laser beam ( ) in both the center region ( ) and the annular region ( ).

Method and apparatus for adjusting spot size of one color component of a multiple color co-axial laser beam

A novel method for assessing a surface figure of an optical element. The method preferably comprises subjecting the optical element to a classical autocollimation testing procedure for ascertaining its surface figure relative to a predetermined ideal. The testing procedure is characterized by a step of modifying the classical optical testing procedure, so that the optical element under test simulates a paraboloid.

Method of assessing a surface figure of an optical element

A method for determining a vertex radius of curvature for an optical surface. The method comprises subjecting the optical surface to a classical collimation testing procedure, so that the optical surface simulates a paraboloid; and, subjecting the optical surface to a vertex focusing interferometric testing procedure, so that a vertex radius of the optical surface can be determined.

Growing community of inventors

Rochester, NY, United States of America

Jennifer A Lebaron