Patent ID: 11938479
Assignee: ILLUMINA, INC.
Field: Measurement (Instruments)
Classification: CPC B  G  Y | IPC B  G

Claim 27:
28. An optical imaging system comprising:
an object holder to hold and move an object;
a detector to detect optical signals from the object at a detector surface;
an optical train having a plurality of optical components configured to direct the optical signals onto the detector surface, the optical train having an object plane proximate to the object holder and an image plane proximate to the detector surface, wherein the detector or one of the optical components constitutes a movable optical device that is movable between an imaging position and a focusing position;
an actuator operatively coupled to the movable optical device, the actuator configured to move the movable optical device between the imaging and focusing positions; and
an image analysis module configured to analyze a test image detected at the detector surface when the movable optical device is in the focusing position, the test image having an optimal degree-of-focus at a focused location in the test image, the focused location in the test image being indicative of a position of the object with respect to the object plane, wherein the object holder is configured to move the object toward the object plane based on the focused location.