Wavefront sensing by phase retrieval
Patent 4309602 Issued on January 5, 1982. Estimated Expiration Date: 
November 1, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 1, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesAdaptive imaging telescope with camera-computer transform image quality sensing and electro-optic phase shifting Sensor system for detecting wavefront distortion in a return beam of light Patent #: 4141652 InventorsAssigneeApplicationNo. 06/090420 filed on 11/01/1979US Classes:250/201.9Light beam wavefront phase adaptationExaminersPrimary: Nelms, David C.Attorney, Agent or FirmInternational ClassesG02B 26/00 (20060101)G02B 26/06 (20060101) G01J 9/00 (20060101) AbstractAdaptive optics with controllable delay in a matrix of regions focuses the image of an object upon a detector array in an image plane that provides a signal set representative of the radiant energy incident upon a matrix of locations in the image plane. An image signal processor processes this signal set to provide a wavefront error signal representative of the estimated wavefront phase distortion of the radiant energy incident upon the detector array. A control system responds to this wavefront error signal to effect alteration of the phase delay introduced by the adaptive optics to reduce the phase distortion of radiant energy incident upon the detector array. | |
