Patent ID: 11857151
Assignee: STERIS INSTRUMENT MANAGEMENT SERVICES, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC A  G  H | IPC A  G  H

Claim 21:
22. A method of evaluating of an objective of an endoscope, the method comprising:
forming an image of a target with an endoscope objective, wherein the objective is apart from the endoscope, the formed image including a curved focal plane;
relaying the formed image onto a camera of an image capture system, wherein the relayed formed image includes the curved focal plane,
acquiring with the image capture system, a plurality of intermediate images from the formed image at a plurality of positions along an optical axis of the objective by moving the image capture system along the optical axis without moving the endoscope objective, wherein each intermediate image of the plurality of intermediate images corresponds to a different image plane with respect to the optical axis taken from the curved focal plane;
providing, by the image capture system, the plurality of intermediate images to an image processing system;
extracting, by the image processing system, at least one portion from each intermediate image of the plurality of intermediate images;
assembling, by the image processing system, the extracted portions from the plurality of intermediate images to form a final image that corresponds to the formed image from the objective; and
evaluating the final image to determine acceptability of the objective.