Donald L Jacques

US Patent:

49938231, Feb 19, 1991

Filed:

Jun 29, 1989

Appl. No.:

7/374332

Inventors:

William E. Schaffer - Webster NY
Donald A. Jacques - Pittsford NY
Donald E. Vandenberg - Brockport NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G02B 718

US Classification:

350611

Abstract:

A method for providing corrections of distortions of an imaging device. Initial corrections may be provided through the use of active optics, to apply forces to the imaging device, or to a compensator device in a common optical path with the imaging device, so as to introduce deformations that cancel out the distortions. This action, in turn, may induce undesirable, secondary aberrations. The method of the invention provides steps for identifying, isolating and removing the undesirable secondary aberrations, and computing new applied forces that cannot induce the secondary aberrations.