Pietrasik
John Pietrasik, Clarkston, MI US
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20080252580 | RGV display system - A color display system includes a sensor assembly having a plurality of sensor pixels for sensing incident light. Each of the sensor pixels generates a photocurrent in response to sensing the incident light. An image processor being in communication with the sensor assembly receives each of the photocurrents and computes a plurality of photocurrent values with each of the photocurrent values corresponding to one of the photocurrents. A display processor receives each of the photocurrent values and calculates a plurality of power values based on the photocurrent values. The color display system further includes a display driver that receives each of the power values and that generates a plurality of power signals having a power corresponding to one of the power values. A display device includes a plurality of light emitting devices being powered by the power signals for emitting light. The light emitting devices include at least one deep-violet light emitting device for emitting deep-violet light. | 10-16-2008 |
20110148952 | COLOR IMAGING SYSTEM - A color imaging system includes a sensor assembly having a plurality of sensor pixels for sensing incident light. The sensor pixels generate photocurrents in response to sensing the incident light. An image processor receives the photocurrents and computes a plurality of photocurrent values. A display processor receives the photocurrent values and calculates a plurality of power values. A display driver receives the power values and generates a plurality of power signals. The color imaging system further includes a display device having a plurality of light emitting devices, each being powered by one of the power signals for emitting light. At least one of the light emitting devices is a deep-violet light emitting device for only emitting light having a peak emission wavelength in the range of 400 to 405.87 nm and having a full width at half maximum (FWHM) value of no greater than 1 nm. | 06-23-2011 |
Ken Pietrasik, Dallas, TX US
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20150276351 | METHOD AND APPARATUS FOR ABSORBING SHOCK IN AN OPTICAL SYSTEM - A system, according to an embodiment of the present invention, having an optical device and a shock attenuator is provided. The optical device is configured to operate with a weapon. The shock attenuator is disposed between the optical device and the weapon. The system includes the shock attenuator that is configured to reduce shock experienced by the optical device during operation of the weapon to less than 250 g's. | 10-01-2015 |
Ken Pietrasik, Murphy, TX US
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20150277077 | METHOD AND SYSTEM FOR CONTROLLING STRAY LIGHT REFLECTIONS IN AN OPTICAL SYSTEM - Systems and methods for controlling stray light reflections are provided. An optical system includes an aperture having an optical axis passing therethrough, one or more optical elements disposed along an optical path, and a detector disposed along the optical path. The system further includes an optical housing disposed between the aperture and the detector. The interior surface of the optical housing includes a predetermined surface feature adapted to control reflections of stray light along the optical path between the aperture and the detector. A method of fabricating an optical housing includes forming a pattern comprising a predetermined surface feature on an interior surface of the optical housing. The predetermined surface feature is configured to control reflections of stray light along an optical path between an aperture at a proximal end of the optical housing and a detector at a distal end of the optical housing. | 10-01-2015 |
Kenneth Pietrasik, Melbourne, FL US
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20150130950 | METHOD AND SYSTEM FOR INTEGRATED OPTICAL SYSTEMS - A method of operating optical systems includes forming a stitched image of a field of regard using a first optical device. The stitched image of the field of regard comprises a plurality of sub-images associated with a first field of view. The method also includes receiving an image of a second field of view from a second optical device and determining a location of the image of the second field of view in the stitched image. The method further includes communicating an indicator to the second optical device. The indicator is to the location of the image of the second field of view in the stitched image. | 05-14-2015 |
Robert Pietrasik, Brzeziny PL
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20120283495 | METHOD AND A DEVICE FOR GENERATING A CARBURIZING GAS MIXTURE - A method to generate a ternary carburizing gas mixture, using a reaction of selective hydrogenation of acetylene in a stream of hydrocarbons to the form of ethylene, comprising the following steps: heating of the inside of the reactor with an inert gas to an operating temperature for a period of 20 minutes at a temperature of 300° K, passing a mixture of hydrogen and acetylene by the regiospecific catalyst, and moving out the reaction products on the outside after passing the mixture through the regiospecific catalyst, but generation is effected in a continuous mode in the operating temperature range of the regiospecific catalyst between 293° K and 398° K, preferably at a temperature of 350° K. | 11-08-2012 |
20150122659 | METHOD OF PRODUCING GRAPHENE FROM LIQUID METAL - A multilayered plate containing, as the graphene forming matrix, an external layer composed of a metal or a metal alloy and, as a support substrate, the transition metals and/or their alloys and/or metalloids and/or their solutions and compounds is subjected to heat treatment in the following stages: plate heating until the plate reaches a temperature that is between 0.5° C. and 50° C., annealing, at a constant or variable temperature from the temperature range, for a period between 60 and 600 seconds and cooling, with the cooling rate maintained between 0.1 and 2° C./min in the temperature range of 1,200° C.-1,050° C. | 05-07-2015 |
20150125694 | NANOCOMPOSITE BASED ON GRAPHENE FOR REVERSIBLE STORAGE OF HYDROGEN - A nanocomposite for the reverse storage of hydrogen based on monolayer sheets of polycrystalline or monocrystalline grapheme having a form of a cylindrical spiral roll of polycrystalline or monocrystalline graphene with a preferably constant spacing in the range from 0.2 to 2 nm, whereby the said spiral roll of polycrystalline graphene has grains with a minimum diameter of 50 nm. | 05-07-2015 |