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Gregory E. Johnson

Gregory E. Johnson, Boulder, CO US

Patent application numberDescriptionPublished
20090096882Optical Imaging Systems And Methods Utilizing Nonlinear And/Or Spatially Varying Image Processing - Systems and methods include optics having one or more phase modifying elements that modify wavefront phase to introduce image attributes into an optical image. A detector converts the optical image to electronic data while maintaining the image attributes. A signal processor subdivides the electronic data into one or more data sets, classifies the data sets, and independently processes the data sets to form processed electronic data. The processing may optionally be nonlinear. Other imaging systems and methods include optics having one or more phase modifying elements that modify wavefront phase to form an optical image. A detector generates electronic data having one or more image attributes that are dependent on characteristics of the phase modifying elements and/or the detector. A signal processor subdivides the electronic data into one or more data sets, classifies the data sets and independently processes the data sets to form processed electronic data. 04-16-2009
20090143874System And Method For Optimizing Optical And Digital System Designs - A software product includes instructions stored on computer-readable media, that when executed by a computer, perform steps for optimizing an optical system design and a digital system design. The instructions are for simulating an optical model of the optical system design, simulating a digital model of the digital system design, analyzing simulated output of the optical model and simulated output of the digital model, to produce a score, modifying the optical model and the digital model, based upon the score, controlling re-execution of the instructions for simulating the optical model, the instructions for simulating the digital model, the instructions for analyzing and the instructions for modifying to produce an optimized optical model and an optimized digital model, and outputting predicted performance of the optimized optical and digital models.06-04-2009
20100165134Arrayed Imaging Systems And Associated Methods - Arrayed imaging systems include an array of detectors formed with a common base and a first array of layered optical elements, each one of the layered optical elements being optically connected with a detector in the array of detectors.07-01-2010
20100165136Optical Imaging Systems And Methods Utilizing Nonlinear And/Or Spatially Varying Image Processing - Systems and methods include optics having one or more phase modifying elements that modify wavefront phase to introduce image attributes into an optical image. A detector converts the optical image to electronic data while maintaining the image attributes. A signal processor subdivides the electronic data into one or more data sets, classifies the data sets, and independently processes the data sets to form processed electronic data. The processing may optionally be nonlinear. Other imaging systems and methods include optics having one or more phase modifying elements that modify wavefront phase to form an optical image. A detector generates electronic data having one or more image attributes that are dependent on characteristics of the phase modifying elements and/or the detector. A signal processor subdivides the electronic data into one or more data sets, classifies the data sets and independently processes the data sets to form processed electronic data.07-01-2010
20100259738Lithographic systems and methods with extended depth of focus - An optical lithography system that has extended depth of focus exposes a photoresist coating on a wafer, and includes an illumination sub-system, a reticle, and an imaging lens that has a pupil plane function to form an aerial image of the reticle proximate to the photoresist. The pupil plane function provides the extended depth of focus such that the system may be manufactured or used with relaxed tolerance, reduced cost and/or increased throughput. The system may be used to form precise vias within integrated circuits even in the presence of misfocus or misalignment.10-14-2010
20100272327Task-Based Imaging Systems - A method for generating an output image of a scene is disclosed. A detector of a task-based imaging system includes a plurality of pixels, and the scene includes at least one object located at a given object distance within a range of object distances between the object and the imaging system. The method includes capturing a high resolution image of the scene, converting the high resolution image into an image spectrum of the scene, determining a defocused optical transfer function (OTF) of the imaging system over the range of object distances and determining a pixel modulation transfer function (MTF) over the plurality of pixels. The method also includes multiplying the image spectrum with the OTF and the MTF to generate a modified image spectrum of the scene, converting the modified image spectrum into a modified image of the scene, and generating the output image from the modified image.10-28-2010
20100278390Task-based imaging systems - A task-based imaging system for obtaining data regarding a scene for use in a task includes an image data capturing arrangement for (a) imaging a wavefront of electromagnetic energy from the scene to an intermediate image over a range of spatial frequencies, (b) modifying phase of the wavefront, (c) detecting the intermediate image, and (d) generating image data over the range of spatial frequencies. The task-based imaging system also includes an image data processing arrangement for processing the image data and performing the task. The image data capturing and image data processing arrangements cooperate so that signal-to-noise ratio (SNR) of the task-based imaging system is greater than SNR of the task-based imaging system without phase modification of the wavefront over the range of spatial frequencies.11-04-2010

Patent applications by Gregory E. Johnson, Boulder, CO US

Gregory E. Johnson, Baton Rouge, LA US

Patent application numberDescriptionPublished
20090312499CHLORINATED ETHYLENE-BASED POLYMERS AND COMPOSITIONS AND ARTICLES PREPARED THEREFROM - The invention provides a chlorinated ethylene-based polymer, process for preparing the same, and compositions and articles prepared from the same. The chlorinated ethylene-based polymer has a low residual crystallinity, for example, less than 8 percent, a relatively high crystallization temperature, Tc, for example greater than, or equal to, 25° C., and a medium weight average molecular weight, Mw, for example, less than, or equal to, 325,000 g/mole.12-17-2009