System for Measuring Optical Phase of a Specimen Using Defocused Images Thereof
AssigneeWavefront Analysis, Inc.
InventorThomas D. Milster
Life of this patent
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Abstract
An optical system for determining the optical phase of an object of interest located at an input plane of the system. The system may include a variable-focus optical imaging system for creating an image of the object of interest at an output plane of the imaging system. An optical detector may be provided at the output plane for receiving the image of the object. A controller may be operably connected to the vari-focal element to adjust the optical power of the variable-focus optical imaging system. The controller may also be configured to create a plurality of defocused images of the object at the output plane and be connected to the detector to capture each of the plurality of defocused images.
Claims7
An optical system for determining the optical phase of an object of interest located at an input plane of the system, comprising:
- a variable-focus optical imaging system for creating an image of the object of interest, the image located at an output plane of the imaging system, and the variable-focus optical imaging system having a vari-focal element disposed therein for adjusting the amount of defocus present in the image at the output plane;
- an optical detector disposed at the output plane for receiving the image of the object;
- and
- a controller operably connected to the vari-focal element to adjust the optical power of the vari-focal element, the controller configured to create a plurality of defocused images of the object at the output plane, the controller operably connected to the detector to operate the detector to capture each of the plurality of defocused images.
Dependencies are inferred from the claim text.