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7390999 |
Differential Shack-Hartmann curvature sensor
A differential Shack-Hartmann curvature sensor for measuring a curvature including principal curvatures and directions of a wavefront. The curvature sensor includes a Shack-Hartmann sensor with an...
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7381934 |
Closed loop compensation system and method for a deformable mirror
A closed loop compensation system including a deformable mirror including an array of spaced actuators. An array of spaced sensors is mapped in optical space to reside between pairs of actuators. A...
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7372569 |
Method of correcting alignment errors in a segmented reflective surface
An optical alignment apparatus comprising a plurality of subapertures and a plurality of detectors. The subapertures are optically coupled to a reflective surface which formed by a plurality of...
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7345267 |
Optical system having element for correcting aberration of mirror and optical pickup apparatus employing the same
An optical system including a light source that generates light, a mirror changing an optical path of the light generated by the light source and an aberration correcting element that corrects...
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7335867 |
Method of wavefront sensing by mapping boundaries of a lenslet array onto a grid of pixels
A system and method of wavefront sensing with a Shack-Hartmann wavefront sensor precisely locates focal spots on a detector array, and determines the location of the lenslet array with respect to...
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7319783 |
Methods for minimizing aberrating effects in imaging systems
A method for reducing optical distortion within an optical system employing adaptive optics, includes modifying phase of a wavefront of the optical system with a wavefront coding element. Image...
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7307707 |
Method and system for measuring the imaging quality of an optical imaging system
An object pattern is imaged by an imaging system onto the image plane of the imaging system at a location where a reference pattern suited to the object pattern is situated in order to measure the...
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7295292 |
Methods and systems for measuring an aberated wave front
Methods and systems are described for a system for measuring aberrations in a wave front. In the improved system multiple closely-spaced, small-aperture laser beams traverse an aberrating flow that...
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7294814 |
Microlithography projection objective including deformable mirror with adjusting elements and systems and methods using the same
A catadioptric projection objective for microlithography has at least one curved mirror that is deformable and adjusting elements that can deform the deformable mirror. The adjusting elements are...
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7274442 |
Closed-loop wavefront sensor using field programmable gate array
A system capable of determining wavefront characteristics, such as air induced wavefront aberrations, includes a field programmable gate array (FPGA) device executing a phase diversity algorithm....
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7245742 |
Video surveillance with speckle imaging
A surveillance system looks through the atmosphere along a horizontal or slant path. Turbulence along the path causes blurring. The blurring is corrected by speckle processing short exposure images...
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7238927 |
Detection of the phase and amplitude of electromagnetic waves
The invention relates to a device for detecting electromagnetic waves, especially for also detecting the phase and amplitude of electromagnetic waves, using elements that react sensitively to...
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7230220 |
Method of determining optical properties and projection exposure system comprising a wavefront detection system
A method of determining at least one optical property of a projection exposure system is described, wherein the exposure system includes a beam delivery system having a light source for generating...
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7195361 |
Active hybrid optical component
An active hybrid optical component includes a substrate including a mounting surface; a replicated optical surface mounted on the mounting surface; and a plurality of actuators for deforming the...
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7187815 |
Relaying an optical wavefront
A wavefront rely devices samples an incoming optical wavefront at different locations, optically relays the samples while maintaining the relative position of the samples and the relative phase...
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7161128 |
Optical instrument employing a wavefront sensor capable of coarse and fine phase measurement capabilities during first and second modes of operation
An improved wavefront sensor for characterizing phase distortions in incident light including optical elements that spatially sample the incident light and form a dispersed spot with a fringe...
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7158238 |
System and method for calibrating a spatial light modulator array using shearing interferometry
A system for calibrating a spatial light modulator array includes an illumination system and a spatial light modulator array that reflects or transmits light from the illumination system. A...
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7129455 |
Systems and methods for modifying wavefronts by amplifying stroke
A system and method modifying wavefront shape is provided. Generally, the system contains a wavefront shape modifying device for modifying the shape of the wavefront. The system also contains a...
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7115849 |
Wavefront coding interference contrast imaging systems
Contrast Imaging apparatus and methods with Wavefront Coding aspheric optics and post processing increase depth of field and reduce misfocus effects in imaging Phase Objects. The general...
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7113707 |
Dynamic optical interconnect
This invention provides a dynamic interconnection system which allows to couple a pair of optical beams carrying modulation information. In accordance with this invention, two optical beams emanate...
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7113268 |
Scintillation tolerant optical field sensing system and associated method
An optical field sensing system and an associated method are provided that are tolerant of scintillation. The system includes a wavefront sensor that measures gradients across a wavefront at a...
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7112772 |
Catadioptric projection objective with adaptive mirror and projection exposure method
A catadioptric projection objective for microlithography has at least one curved mirror that is deformable and adjusting elements that can deform the deformable mirror. The adjusting elements are...
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7102114 |
Electromagnetically driven membrane mirror assembly
In an optics system, a flexible mirror is deformed with an electromagnetic force. In one embodiment, an electrical current is directed through the mirror, or a conductor attached to the mirror, in...
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7098433 |
Apparatus and method for estimating and adjusting deviations in an optical system based on wavefront aberrations ascribable to misalignment
An optical system deviation estimating apparatus includes an erected/inverted attitude setting means 9 for changing dispositional attitude of an optical system under test, a non-interferometric...
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7078665 |
System and method of wavefront sensing for determining a location of focal spot
A system and method of wavefront sensing with a Shack-Hartmann wavefront sensor precisely locates focal spots on a detector array, and determines the location of the lenslet array with respect to...
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7057806 |
Scanning laser microscope with wavefront sensor
An enhanced resolution scanned image of an object is produced by a scanning laser microscope which includes an illumination arm for scanning an object with a focused probe beam and a detection arm...
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7041953 |
Beam control system with extended beacon and method
A beam control system and method: The inventive system includes, an arrangement for receiving a first beam of electromagnetic energy; measuring wavefront aberrations in the first beam with a...
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7012271 |
Electromagnetic radiation structure control system
A control system is provided for controlling the shape of a flexible electromagnetic radiation structure. The control system includes a plurality of actuators and a plurality of computational...
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7002127 |
Method and system for wavefront compensation
Techniques for predicting and correcting for optical distortions. A method for correcting optical distortions in a laser system includes operating a laser system at a first time to emit a laser...
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6987255 |
State space wavefront reconstructor for an adaptive optics control
A state space wavefront reconstructor for use in an adaptive optics control system is disclosed. The adaptive optics control system comprises a wavefront corrector having a surface controlled by a...
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6961121 |
Method and system for evaluating optical disturbances occurring in a supersonic flow field
A method of evaluating optical disturbances occurring in a flow field around a solid body. The method includes performing a computational fluid dynamics (CFD) calculation to obtain a...
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6924899 |
System for measuring wavefront tilt in optical systems and method of calibrating wavefront sensors
A wavefront tilt measurement system for measuring the wavefront tilt of light passing through transmitting or receiving optical systems, the optical systems including a primary aperture and...
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6917426 |
Real-time wavefront sensor system
The system includes a first polarizing element; an electro-optically driven birefringent element; a second polarizing element; an optical assembly; and, an optical-to-electronic imaging sensor...
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6911638 |
Wavefront coding zoom lens imaging systems
A wide-angle zoom lens with as few as two plastic elements codes the wavefront produced by the imaging system such that the imaging system is substantially invariant to aberrations related to...
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6911637 |
Wavefront phase sensors using optically or electrically controlled phase spatial light modulators
Systems for optical wavefront sensing and control based on a phase contrast Fourier domain filtering technique. Optically or electronically controlled phase spatial light modulators (SLM) are used...
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6909498 |
Method and apparatus for measuring the geometrical structure of an optical component in transmission
A method for measuring the geometrical structure of an optical component ( 2 ) in transmission, comprises illuminating the optical component by means of a first incident beam ( 8, 10 ), the...
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6872960 |
Robust infrared countermeasure system and method
A system and method for focusing electromagnetic energy on a moving target. Generally, the inventive system sends a pilot beam to a target and analyzes a return wavefront to ascertain data with...
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6849841 |
SYSTEM AND METHOD FOR EFFECTING HIGH-POWER BEAM CONTROL WITH OUTGOING WAVEFRONT CORRECTION UTILIZING HOLOGRAPHIC SAMPLING AT PRIMARY MIRROR, PHASE CONJUGATION, AND ADAPTIVE OPTICS IN LOW POWER BEAM PATH
A beam control system and method. In an illustrative embodiment, the inventive system ( 500 ) provides a first beam of electromagnetic energy ( 503 ); samples the first beam ( 503 ) and provides a...
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6827442 |
Ophthalmic wavefront measuring devices
Apparatuses and methods for improving aberration determination capabilities, providing corrective prescription verification, and allowing binocular vision correction in ophthalmic wavefront...
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6818876 |
Scintillation-immune adaptive optics reconstructor
A method and apparatus for producing a scintillation-immune adaptive optics reconstructor is disclosed. The present invention includes a wavefront sensor ( 70 ) which determines illumination slope...
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6794625 |
Dynamic automatic focusing method and apparatus using interference patterns
Method and apparatus to enable detection of a position of an article, and thereby enable maintenance of a desired position thereof. The apparatus includes an illumination unit, focusing optics and...
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6787747 |
Fast phase diversity wavefront correction using a neural network
A phase diversity wavefront correction system for use in a multiple aperture optical imaging system forms an in-focus image as a composite, focused image from the multiple apertures of the system...
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6784408 |
Array of lateral effect detectors for high-speed wavefront sensing and other applications
A two-dimensional array of lateral-effect detectors (or position-sensing devices) is used to simultaneously measure multi-point centroidal locations at high speed. It is one of the primary...
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6723974 |
Process for the adaptive beam control of medium-energy laser weapons
A process for the adaptive beam control of medium-energy laser weapons for fighting electro-optical sensors and windows, wherein the behavior of the laser power reflected from a bright spot of the...
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6714231 |
Image forming apparatus and laser drive control method therein
An image forming apparatus for forming an image by modulating laser light in correspondence with an image signal. A pulsewidth modulation signal is generated in correspondence with input image...
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6707020 |
Adaptive dynamic range wavefront sensor
An adaptive dynamic wavefront sensor and corresponding method comprising a spatial light modulator and a lenslet array. A subarray of pixels of the spatial light modulator controls illumination of...
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6700108 |
Means for protecting optical focal plane sensor arrays against excessive irradiation
An imaging or viewing system, which automatically compensates for bright spots, which tend to overload or saturate imaging system. The system can be used with imaging type tracking systems, viewers...
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6693704 |
Wave surface aberration measurement device, wave surface aberration measurement method, and projection lens fabricated by the device and the method
A method and apparatus for measuring a wave front aberration of a projection lens with high precision and a related calibration method. The apparatus includes: either a light source and an element...
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6683291 |
Optimal beam propagation system having adaptive optical systems
A method for maximum power transmission through a turbulent medium using the minimum size telescope aperture. Two telescopes are both equipped with an adaptive optical system to correct the...
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6674519 |
Optical phase front measurement unit
An adaptive optics system configured as an optical phase front measurement system which provides for relatively high resolution sampling as in holographic techniques but without the need for a...
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