Patents by Inventor Curtis R. Hruska
Curtis R. Hruska has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10226790Abstract: A scanning laser having a wavelength compatible with a coating binder so as to cure it as the laser scans and irradiates the coating on a moving web. A system and method for curing flakes by providing a scanning laser which scans across a moving coated substrate in a magnetic field allows images to be formed as magnetically aligned flakes are cured into a fixed position. The images have regions of cured aligned flakes. The scanning laser cures the magnetically aligned flakes within it region it irradiates. Alternatively an array of lasers can be used wherein individual lasers can be switched on and off to fix irradiated coating as a moving web is moved at a high speed.Type: GrantFiled: September 8, 2016Date of Patent: March 12, 2019Assignee: VIAVI Solutions Inc.Inventors: Vladimir P. Raksha, Curtis R. Hruska, Neil Teitelbaum
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Patent number: 10222325Abstract: A portable spectrometer device includes an illumination source for directing at a sample, and a tapered light pipe (TLP) for capturing light interacting with the sample at a first focal ratio and for delivering the light at a second focal ratio lower than the first focal ratio. A linearly variable filter (LVF) separates the captured light into a spectrum of constituent wavelength signals; and a detector array, including a plurality of pixels, each of the plurality of pixels disposed to receive at least a portion of a plurality of the constituent wavelength signals provides a power reading for each constituent wavelength. Preferably, the TLP is lensed at one end, and recessed in a protective boot with stepped inner walls. The gap between the TLP and LVF is minimized to further enhance resolution and robustness.Type: GrantFiled: June 5, 2017Date of Patent: March 5, 2019Assignee: VIAVI Solutions Inc.Inventors: Curtis R. Hruska, Charles A. Hulse, Brett J. Bryars, Marc K. Von Gunten, Christopher G. Pederson, Nada A. O'Brien, Jerry Zieba, Benjamin F. Catching
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Patent number: 10190910Abstract: An optical filter is disclosed including two laterally variable bandpass filters stacked at a fixed distance from each other, so that the upstream filter functions as a spatial filter for the downstream filter. This happens because an oblique beam transmitted by the upstream filter is displaced laterally when impinging on the downstream filter. The lateral displacement causes a suppression of the oblique beam when transmission passbands at impinging locations of the oblique beam onto the upstream and downstream filters do not overlap.Type: GrantFiled: April 17, 2017Date of Patent: January 29, 2019Assignee: VIAVI Solutions Inc.Inventors: Curtis R. Hruska, Benjamin F. Catching, Paula Smith
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Publication number: 20190003885Abstract: An optical assembly is disclosed including two laterally variable bandpass optical filters slacked at a fixed distance from each other, so that the upstream filter functions as a spatial filler for the downstream filter. The lateral displacement may cause a suppression of the oblique beam when transmission passbands at impinging locations of the oblique beam onto the upstream and downstream filters do not overlap. A photodetector array may be disposed downstream of the downstream filter. The optical assembly may be coupled via a variety of optical conduits or optical fibers for spectroscopic measurements of a flowing sample.Type: ApplicationFiled: August 10, 2018Publication date: January 3, 2019Inventors: Paula SMITH, Curtis R. HRUSKA, Benjamin F. CATCHING, Paul G. COOMBS
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Publication number: 20180313690Abstract: A device may determine a calibration value for a spectrometer using light from a first light source; deactivate the first light source after determining the calibration value; perform measurement with regard to a sample based on the calibration value, wherein the measurement of the sample is performed using light from a second light source; determine that the calibration value is to be updated; and update the calibration value using the light from the first light source.Type: ApplicationFiled: March 27, 2018Publication date: November 1, 2018Inventor: Curtis R. HRUSKA
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Publication number: 20180231472Abstract: Increasing the precision of process monitoring may be improved if the sensors take the form of travelling probes riding along with the flowing materials in the manufacturing process rather than sample only when the process moves passed the sensors fixed location. The probe includes an outer housing hermetically sealed from the flowing materials, and a light source for transmitting light through a window in the housing onto the flowing materials. A spatially variable optical filter (SVF) captures light returning from the flowing materials, and separates the captured light into a spectrum of constituent wavelength signals for transmission to a detector array, which provides a power reading for each constituent wavelength signal.Type: ApplicationFiled: April 12, 2018Publication date: August 16, 2018Inventors: Benjamin F. CATCHING, Marc K. VON GUNTEN, Curtis R. HRUSKA, Paula SMITH, Paul G. COOMBS
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Patent number: 10048127Abstract: An optical assembly is disclosed including two laterally variable bandpass optical filters stacked at a fixed distance from each other, so that the upstream filter functions as a spatial filter for the downstream filter. The lateral displacement may cause a suppression of the oblique beam when transmission passbands at impinging locations of the oblique beam onto the upstream and downstream filters do not overlap. A photodetector array may be disposed downstream of the downstream filter. The optical assembly may be coupled via a variety of optical conduits or optical fibers for spectroscopic measurements of a flowing sample.Type: GrantFiled: August 5, 2015Date of Patent: August 14, 2018Assignee: VIAVI Solutions Inc.Inventors: Paula Smith, Curtis R. Hruska, Benjamin F. Catching, Paul G. Coombs
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Publication number: 20180156723Abstract: A lightpipe is coupled to a spectrometer based on a laterally variable optical filter. The lightpipe may be used for both guiding the illuminating light towards a sample and collecting light reflected or emitted by the sample upon illumination, for spectral measurements at a distance from the sample afforded by the lightpipe. The lightpipe may include a slab of homogeneous transparent material for unconstrained bidirectional propagation of light in bulk of the material. The lightpipe may be solid, hollow, or sectioned for separated guiding of the illuminating and the reflected light.Type: ApplicationFiled: February 2, 2018Publication date: June 7, 2018Inventors: Curtis R. HRUSKA, Benjamin F. Catching, Marc K. Von Gunten
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Patent number: 9945790Abstract: Increasing the precision of process monitoring may be improved if the sensors take the form of travelling probes riding along with the flowing materials in the manufacturing process rather than sample only when the process moves passed the sensors fixed location. The probe includes an outer housing hermetically sealed from the flowing materials, and a light source for transmitting light through a window in the housing onto the flowing materials. A spatially variable optical filter (SVF) captures light returning from the flowing materials, and separates the captured light into a spectrum of constituent wavelength signals for transmission to a detector array, which provides a power reading for each constituent wavelength signal.Type: GrantFiled: August 5, 2015Date of Patent: April 17, 2018Assignee: VIAVI Solutions Inc.Inventors: Benjamin F. Catching, Marc K. Von Gunten, Curtis R. Hruska, Paula Smith, Paul G. Coombs
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Patent number: 9885655Abstract: A lightpipe is coupled to a spectrometer based on a laterally variable optical filter. The lightpipe may be used for both guiding the illuminating light towards a sample and collecting light reflected or emitted by the sample upon illumination, for spectral measurements at a distance from the sample afforded by the lightpipe. The lightpipe may include a slab of homogeneous transparent material for unconstrained bidirectional propagation of light in bulk of the material. The lightpipe may be solid, hollow, or sectioned for separate guiding of the illuminating and the reflected light.Type: GrantFiled: May 12, 2015Date of Patent: February 6, 2018Assignee: Viavi Solutions Inc.Inventors: Curtis R. Hruska, Benjamin F. Catching, Marc K. Von Gunten
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Publication number: 20170336319Abstract: A portable spectrometer device includes an illumination source for directing at a sample, and a tapered light pipe (TLP) for capturing light interacting with the sample at a first focal ratio and for delivering the light at a second focal ratio lower than the first focal ratio. A linearly variable filter (LVF) separates the captured light into a spectrum of constituent wavelength signals; and a detector array, including a plurality of pixels, each of the plurality of pixels disposed to receive at least a portion of a plurality of the constituent wavelength signals provides a power reading for each constituent wavelength. Preferably, the TLP is lensed at one end, and recessed in a protective boot with stepped inner walls. The gap between the TLP and LVF is minimized to further enhance resolution and robustness.Type: ApplicationFiled: June 5, 2017Publication date: November 23, 2017Inventors: Curtis R. HRUSKA, Charles A. HULSE, Brett J. BRYARS, Marc K. VON GUNTEN, Christopher G. PEDERSON, Nada A. O'BRIEN, Jerry ZIEBA, Benjamin F. CATCHING
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Publication number: 20170303846Abstract: A device may receive, from a plurality of sensors, sensor data relating to a user. The device may include a plurality of types of sensors including a spectrometer and one or more of an accelerometer, a heart rate sensor, a blood pressure sensor, a blood sugar sensor, a perspiration sensor, a skin conductivity sensor, or an imaging sensor. The device may process the sensor data, from the plurality of types of sensors, relating to the user to determine a health condition of the user. The device may provide, via a user interface, information identifying the health condition of the user based on processing the sensor data, from the plurality of types of sensors, relating to the user.Type: ApplicationFiled: April 21, 2016Publication date: October 26, 2017Inventors: Nada A. O'BRIEN, Curtis R. HRUSKA, Marc K. VON GUNTEN, Christopher G. PEDERSON, Changmeng HSIUNG
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Publication number: 20170284930Abstract: A spectroscopic assembly may include a spectrometer. The spectrometer may include an illumination source to generate a light to illuminate a sample. The spectrometer may include a sensor to obtain a spectroscopic measurement based on light, reflected by the sample, from the light illuminating the sample. The spectroscopic assembly may include a light pipe to transfer the light reflected from the sample. The light pipe may include a first opening to receive the spectrometer. The light pipe may include a second opening to receive the sample, such that the sample is enclosed by the light pipe and a base surface when the sample is received at the second opening. The light pipe may be associated with aligning the illumination source and the sensor with the sample.Type: ApplicationFiled: April 3, 2017Publication date: October 5, 2017Inventors: Curtis R. HRUSKA, Peng Zou, Benjamin F. Catching, Marc K. Von Gunten, Valton Smith
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Publication number: 20170219430Abstract: An optical filter is disclosed including two laterally variable bandpass filters stacked at a fixed distance from each other, so that the upstream filter functions as a spatial filter for the downstream filter. This happens because an oblique beam transmitted by the upstream filter is displaced laterally when impinging on the downstream filter. The lateral displacement causes a suppression of the oblique beam when transmission passbands at impinging locations of the oblique beam onto the upstream and downstream filters do not overlap.Type: ApplicationFiled: April 17, 2017Publication date: August 3, 2017Inventors: Curtis R. HRUSKA, Benjamin F. CATCHING, Paula SMITH
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Patent number: 9671330Abstract: A portable spectrometer device includes an illumination source for directing at a sample, and a tapered light pipe (TLP) for capturing light interacting with the sample at a first focal ratio and for delivering the light at a second focal ratio lower than the first focal ratio. A linearly variable filter (LVF) separates the captured light into a spectrum of constituent wavelength signals; and a detector array, including a plurality of pixels, each of the plurality of pixels disposed to receive at least a portion of a plurality of the constituent wavelength signals provides a power reading for each constituent wavelength. Preferably, the TLP is lensed at one end, and recessed in a protective boot with stepped inner walls. The gap between the TLP and LVF is minimized to further enhance resolution and robustness.Type: GrantFiled: December 28, 2015Date of Patent: June 6, 2017Assignee: Viavi Solutions Inc.Inventors: Curtis R. Hruska, Charles A. Hulse, Brett J. Bryars, Marc K. Von Gunten, Christopher G. Pederson, Nada A. O'Brien, Jerry Zieba, Benjamin F. Catching
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Patent number: 9625628Abstract: An optical filter is disclosed including two laterally variable bandpass filters stacked at a fixed distance from each other, so that the upstream filter functions as a spatial filter for the downstream filter. This happens because an oblique beam transmitted by the upstream filter is displaced laterally when impinging on the downstream filter. The lateral displacement causes a suppression of the oblique beam when transmission passbands at impinging locations of the oblique beam onto the upstream and downstream filters do not overlap.Type: GrantFiled: January 29, 2015Date of Patent: April 18, 2017Assignee: Viavi Solutions Inc.Inventors: Curtis R. Hruska, Benjamin F. Catching, Paula Smith
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Publication number: 20170038255Abstract: An optical assembly is disclosed including two laterally variable bandpass optical filters stacked at a fixed distance from each other, so that the upstream filter functions as a spatial filter for the downstream filter. The lateral displacement may cause a suppression of the oblique beam when transmission passbands at impinging locations of the oblique beam onto the upstream and downstream filters do not overlap. A photodetector array may be disposed downstream of the downstream filter. The optical assembly may be coupled via a variety of optical conduits or optical fibers for spectroscopic measurements of a flowing sample.Type: ApplicationFiled: August 5, 2015Publication date: February 9, 2017Inventors: Paula SMITH, Curtis R. HRUSKA, Benjamin F. CATCHING, Paul G. COOMBS
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Publication number: 20170038305Abstract: Increasing the precision of process monitoring may be improved if the sensors take the form of travelling probes riding along with the flowing materials in the manufacturing process rather than sample only when the process moves passed the sensors fixed location. The probe includes an outer housing hermetically sealed from the flowing materials, and a light source for transmitting light through a window in the housing onto the flowing materials. A spatially variable optical filter (SVF) captures light returning from the flowing materials, and separates the captured light into a spectrum of constituent wavelength signals for transmission to a detector array, which provides a power reading for each constituent wavelength signal.Type: ApplicationFiled: August 5, 2015Publication date: February 9, 2017Inventors: Benjamin F. CATCHING, Marc K. VON GUNTEN, Curtis R. HRUSKA, Paula SMITH, Paul G. COOMBS
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Publication number: 20170001216Abstract: A scanning laser having a wavelength compatible with a coating binder so as to cure it as the laser scans and irradiates the coating on a moving web. A system and method for curing flakes by providing a scanning laser which scans across a moving coated substrate in a magnetic field allows images to be formed as magnetically aligned flakes are cured into a fixed position. The images have regions of cured aligned flakes. The scanning laser cures the magnetically aligned flakes within it region it irradiates. Alternatively an array of lasers can be used wherein individual lasers can be switched on and off to fix irradiated coating as a moving web is moved at a high speed.Type: ApplicationFiled: September 8, 2016Publication date: January 5, 2017Inventors: Vladimir P. Raksha, Curtis R. Hruska
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Publication number: 20160116399Abstract: A portable spectrometer device includes an illumination source for directing at a sample, and a tapered light pipe (TLP) for capturing light interacting with the sample at a first focal ratio and for delivering the light at a second focal ratio lower than the first focal ratio. A linearly variable filter (LVF) separates the captured. light into a spectrum of constituent wavelength signals; and a detector array, including a plurality of pixels, each of the plurality of pixels disposed to receive at least a portion of a plurality of the constituent wavelength signals provides a power reading for each constituent wavelength. Preferably, the TLP is lensed at one end, and recessed in a protective boot with stepped inner walls. The gap between the TLP and LVF is minimized to further enhance resolution and robustness.Type: ApplicationFiled: December 28, 2015Publication date: April 28, 2016Inventors: Curtis R. HRUSKA, Charles A. HULSE, Brett J. BRYARS, Marc K. VON GUNTEN, Christopher G. PEDERSON, Nada A. O'BRIEN, Jerry ZIEBA