US 12,078,936 B2
Magnification adjustable projection system using deformable lens plates
Robert Dennis Grejda, Fairport, NY (US); Brian Monroe McMaster, Pittsford, NY (US); and Paul Francis Michaloski, Rochester, NY (US)
Assigned to CORNING INCORPORATED, Corning, NY (US)
Filed by Corning Incorporated, Corning, NY (US)
Filed on Aug. 29, 2022, as Appl. No. 17/897,328.
Claims priority of provisional application 63/239,666, filed on Sep. 1, 2021.
Prior Publication US 2023/0077090 A1, Mar. 9, 2023
Int. Cl. G03F 7/00 (2006.01); G02B 3/14 (2006.01)
CPC G03F 7/70266 (2013.01) [G02B 3/14 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An anamorphic magnification adjustable projection system comprising:
an imaging system having an object or image space;
a first deformable lens plate located within the object or image space for contributing a first magnification power to the imaging system as a function of an amount of curvature of the first deformable lens plate;
a second deformable lens plate located within the object or image space for contributing a second magnification power to the imaging system as a function of an amount of curvature of the second deformable lens plate;
a first bending apparatus that adjusts the curvature of the first deformable lens plate through a range of curvature variation for adjusting the first magnification power of the imaging system; and
a second bending apparatus that adjusts the curvature of the second deformable lens plate through a range of curvature variation for adjusting the second magnification power of the imaging system, wherein the first deformable plate is adjustable about a first transverse axis that extends substantially normal to an optical axis of the imaging system and the second deformable lens plate is adjustable about a second transverse axis that extends substantially normal to the optical axis of the imaging system, wherein the first and second deformable lens plates are oriented such that the first transverse axis is fixed approximately 45 degrees relative to the second transverse axis, wherein bending of the first and second deformable lens plates by the first and second bending apparatuses produces a range of anamorphic magnification adjustment without adjusting the orientation of the first transverse axis relative to the second transverse axis, wherein the first deformable lens plate is larger in size than the second deformable lens plate, and wherein the first deformable lens plate and the second deformable lens plate are configured for bending in different directions while the first transverse axis remains fixed approximately 45 degrees relative to the second transverse axis for producing a range of anamorphic magnification adjustment.