Patents by Inventor Juha-Pekka Laine
Juha-Pekka Laine 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: 11698526Abstract: A multi channel beamsplitter system operating over a wide spectral band has high optical performance despite the fact that the incoming and/or exiting light is not collimated and its material is dispersive. This is achieved using wavefront compensators that are matched to the curvature of the wavefronts of the incoming and/or exiting light.Type: GrantFiled: February 7, 2020Date of Patent: July 11, 2023Assignee: The Charles Stark Draper Laboratory, Inc.Inventors: Matthew A. Sinclair, Adam F. Kelsey, David A. Landis, Stephanie L. Golmon, Buddy Clemmer, Juha-Pekka Laine
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Patent number: 11392805Abstract: A potentially small, gimballed, multi-sensor system employs a shared aperture for at least some of the image sensors. Applications include intelligence, surveillance, target acquisition and reconnaissance (ISTAR), and guiding autonomous vehicles. The system can actively blend images from multiple spectral bands for clarity and interpretability, provide remote identification of objects and material, provide anomaly detection, control lasers and opto-mechanics for image quality, and use shared aperture using folded optics.Type: GrantFiled: June 27, 2019Date of Patent: July 19, 2022Assignee: THE CHARLES STARK DRAPER LABORATORY, INC.Inventors: Matthew A. Sinclair, Adam Kelsey, Paul Aaron Bohn, Stephanie L. Golmon, Francis J. Rogomentich, Juha-Pekka Laine, Buddy A. Clemmer, David A. Landis
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Patent number: 11287635Abstract: An optical system such as an imaging system, projecting system or combined imaging and projecting system, has complex dielectric coatings and/or reflecting polarizers to separate multiple spectral bands and/or polarizations on one or more of the system's curved mirrors.Type: GrantFiled: June 27, 2019Date of Patent: March 29, 2022Assignee: The Charles Stark Draper Laboratory, Inc.Inventors: Matthew A. Sinclair, Paul Aaron Bohn, Juha-Pekka Laine, Francis J. Rogomentich
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Publication number: 20200257111Abstract: A multi channel beamsplitter system operating over a wide spectral band has high optical performance despite the fact that the incoming and/or exiting light is not collimated and its material is dispersive. This is achieved using wavefront compensators that are matched to the curvature of the wavefronts of the incoming and/or exiting light.Type: ApplicationFiled: February 7, 2020Publication date: August 13, 2020Inventors: Matthew A. Sinclair, Adam F. Kelsey, David A. Landis, Stephanie L. Golmon, Buddy Clemmer, Juha-Pekka Laine
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Publication number: 20200005097Abstract: A potentially small, gimballed, multi-sensor system employs a shared aperture for at least some of the image sensors. Applications include intelligence, surveillance, target acquisition and reconnaissance (ISTAR), and guiding autonomous vehicles. The system can actively blend images from multiple spectral bands for clarity and interpretability, provide remote identification of objects and material, provide anomaly detection, control lasers and opto-mechanics for image quality, and use shared aperture using folded optics.Type: ApplicationFiled: June 27, 2019Publication date: January 2, 2020Inventors: Matthew A. Sinclair, Adam Kelsey, Paul Aaron Bohn, Stephanie L. Golmon, Francis J. Rogomentich, Juha-Pekka Laine, Buddy A. Clemmer, David A. Landis
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Publication number: 20200004001Abstract: A multi-band/multi-polarization reflective or catadioptric optical system yields differing effective focal lengths (EFLs) per band/polarization. This approach could be used to create an imaging system, for example. In such case, a sensor (imager, spectrometer, diode, etc.) is located at the one or more focal planes. On the other hand, it could also be used to create a projecting system or hybrid projecting and imaging system by locating an emitter such as an LED, laser, etc.) at the image or focal plane. The system employs polarizers and/or dichroic coatings nano patterns to create different focal lengths and/or fields of view using the same mirrors and/or lenses by, for example, including at least one dichroic coating optically in front of at least one additional mirror to separately reflect the different bands or polarizations.Type: ApplicationFiled: June 27, 2019Publication date: January 2, 2020Inventors: Matthew A. Sinclair, Juha-Pekka Laine
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Publication number: 20200004006Abstract: An optical system such as an imaging system, projecting system or combined imaging and projecting system, has complex dielectric coatings and/or reflecting polarizers to separate multiple spectral bands and/or polarizations on one or more of the system's curved mirrors.Type: ApplicationFiled: June 27, 2019Publication date: January 2, 2020Inventors: Matthew A. Sinclair, Paul Aaron Bohn, Juha-Pekka Laine, Francis J. Rogomentich
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Publication number: 20190384221Abstract: SAW modulators are used as components of diffractive imaging systems. Arrays of the modulators can be used to detect the light field from a scene. In specific applications, they can be used to provide matched filtering for object recognition.Type: ApplicationFiled: June 12, 2019Publication date: December 19, 2019Inventors: Gregg E. Favalora, Juha-Pekka Laine, Joseph J. Register, Dennis M. Callahan, Jr., Ian Ward Frank
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Patent number: 10419113Abstract: An optical communications system comprises a first node comprising a phased array transmitter for generating an optical beam and a receiver, and a second node comprising a phase conjugate mirror for returning the optical beam to be detected by the receiver of the first node. The phased array transmitters allow for electronic steering of the beams in a way that is much faster and with a potentially smaller physical footprint than the mechanical systems. The phase conjugate mirrors return the received beams of photons back over the exact path they were sent from the phased array transmitters, ensuring continuity of communication even in the presence of atmospheric turbulence.Type: GrantFiled: May 24, 2017Date of Patent: September 17, 2019Assignee: The Charles Stark Draper Laboratory, Inc.Inventors: Robin Mark Adrian Dawson, Juha Pekka Laine, Steven Spector, Murali Chaparala
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Patent number: 9891305Abstract: A chip scale star tracker that couples starlight into a lightguide such that the angle of incidence partially determines the mode of propagation of the starlight in the lightguide. A baffle system integrated with the lightguide prevents propagation of light incident from a predetermined range of angles.Type: GrantFiled: June 3, 2016Date of Patent: February 13, 2018Assignee: THE CHARLES STARK DRAPER LABORATORY, INC.Inventors: Juha-Pekka Laine, Gregory P. Blasche, Murali V. Chaparala, Robin Dawson, Benjamin Lane, Stephen P. Smith, Erik Waldron
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Publication number: 20170346565Abstract: An optical communications system comprises a first node comprising a phased array transmitter for generating an optical beam and a receiver, and a second node comprising a phase conjugate mirror for returning the optical beam to be detected by the receiver of the first node. The phased array transmitters allow for electronic steering of the beams in a way that is much faster and with a potentially smaller physical footprint than the mechanical systems. The phase conjugate mirrors return the received beams of photons back over the exact path they were sent from the phased array transmitters, ensuring continuity of communication even in the presence of atmospheric turbulence.Type: ApplicationFiled: May 24, 2017Publication date: November 30, 2017Inventors: Robin Mark Adrian Dawson, Juha Pekka Laine, Steven Spector, Murali Chaparala
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Patent number: 9766041Abstract: A device and method for selectively illuminating and designating multiple targets in the air or on the ground simultaneously. The device comprises a light source, a switching array and a ball lens. Light from the light source is routed through the switching array, which can addressably output multiple light beams simultaneously. The light beams from the switching array illuminate the backside of a low F-number ball lens. The ball lens creates highly collimated output beams independently (and simultaneously) from any of the output source points of the switching array. These output beams can be used to simultaneously designate multiple targets. When the target illuminating device includes an optional detector array, light scattered from targets can be refracted by the balls lens to impinge on the detector array. Signals from the detector array representing the received light beams can be used for target imaging.Type: GrantFiled: December 8, 2014Date of Patent: September 19, 2017Assignee: The Charles Stark Draper Laboratory, Inc.Inventors: Juha-Pekka Laine, Gregory Blasche, Robin Dawson, Sean McClain, Stephen P. Smith, Robert Larsen, Charles Arant, William Ostrowski
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Patent number: 9544488Abstract: A star tracker has an electronically steerable point of view, without requiring a precision aiming mechanism. The star tracker can be strapped down, thereby avoiding problems associated with precision aiming of mechanical devices. The star tracker images selectable narrow portions of a scene, such as the sky. Each stellar sighting can image a different portion of the sky, depending on which navigational star or group of navigational stars is of interest. The selectability of the portion of the sky imaged enables the star tracker to avoid unwanted light, such as from the sun.Type: GrantFiled: May 14, 2013Date of Patent: January 10, 2017Assignee: The Charles Stark Draper Laboratory, Inc.Inventors: Robin Mark Adrian Dawson, Juha Pekka Laine, Murali Chaparala
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Publication number: 20160282441Abstract: A chip scale star tracker that couples starlight into a lightguide such that the angle of incidence partially determines the mode of propagation of the starlight in the lightguide. A baffle system integrated with the lightguide prevents propagation of light incident from a predetermined range of angles.Type: ApplicationFiled: June 3, 2016Publication date: September 29, 2016Inventors: Juha-Pekka Laine, Gregory P. Blasche, Murali V. Chaparala, Robin Dawson, Benjamin Lane, Stephen P. Smith, Erik Waldron
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Patent number: 9372250Abstract: A chip scale star tracker that captures plane-wave starlight propagating in free space with a wafer-thin angle-sensitive broadband filter-aperture, and directs the light into a waveguide structure for readout. Angular information about the star source is determined from characteristics of the starlight propagating in the waveguide. Certain examples include internal propagation-constant-based baffling to elimination stray light from extreme angles.Type: GrantFiled: April 22, 2015Date of Patent: June 21, 2016Assignee: THE CHARLES STARK DRAPER LABORATORY, INC.Inventors: Juha-Pekka Laine, Gregory P. Blasche, Murali V. Chaparala, Robin Dawson, Benjamin Lane, Stephen P. Smith, Erik Waldron
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Publication number: 20160161218Abstract: A device and method for selectively illuminating and designating multiple targets in the air or on the ground simultaneously. The device comprises a light source, a switching array and a ball lens. Light from the light source is routed through the switching array, which can addressably output multiple light beams simultaneously. The light beams from the switching array illuminate the backside of a low F-number ball lens. The ball lens creates highly collimated output beams independently (and simultaneously) from any of the output source points of the switching array. These output beams can be used to simultaneously designate multiple targets. When the target illuminating device includes an optional detector array, light scattered from targets can be refracted by the balls lens to impinge on the detector array. Signals from the detector array representing the received light beams can be used for target imaging.Type: ApplicationFiled: December 8, 2014Publication date: June 9, 2016Inventors: Juha-Pekka Laine, Gregory Blasche, Robin Dawson, Sean McClain, Stephen P. Smith, Robert Larsen, Charles Arant, William Ostrowski
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Publication number: 20150226830Abstract: A chip scale star tracker that captures plane-wave starlight propagating in free space with a wafer-thin angle-sensitive broadband filter-aperture, and directs the light into a waveguide structure for readout. Angular information about the star source is determined from characteristics of the starlight propagating in the waveguide. Certain examples include internal propagation-constant-based baffling to elimination stray light from extreme angles.Type: ApplicationFiled: April 22, 2015Publication date: August 13, 2015Inventors: Juha-Pekka Laine, Gregory P. Blasche, Murali V. Chaparala, Robin Dawson, Benjamin Lane, Stephen P. Smith, Erik Waldron
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Patent number: 9019509Abstract: A chip scale star tracker that captures plane-wave starlight propagating in free space with a wafer-thin angle-sensitive broadband filter-aperture, and directs the light into a waveguide structure for readout. Angular information about the star source is determined from characteristics of the starlight propagating in the waveguide. Certain examples include internal propagation-constant-based baffling to elimination stray light from extreme angles.Type: GrantFiled: June 28, 2013Date of Patent: April 28, 2015Assignee: The Charles Stark Draper Laboratory, Inc.Inventors: Juha-Pekka Laine, Gregory P. Blasche, Murali V. Chaparala, Robin Dawson, Benjamin Lane, Stephen P. Smith, Erik Waldron
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Publication number: 20150002854Abstract: A chip scale star tracker that captures plane-wave starlight propagating in free space with a wafer-thin angle-sensitive broadband filter-aperture, and directs the light into a waveguide structure for readout. Angular information about the star source is determined from characteristics of the starlight propagating in the waveguide. Certain examples include internal propagation-constant-based baffling to elimination stray light from extreme angles.Type: ApplicationFiled: June 28, 2013Publication date: January 1, 2015Inventors: Juha-Pekka Laine, Gregory P. Blasche, Murali V. Chaparala, Robin Dawson, Benjamin Lane, Stephen P. Smith, Erik Waldron
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Publication number: 20140340522Abstract: A star tracker has an electronically steerable point of view, without requiring a precision aiming mechanism. The star tracker can be strapped down, thereby avoiding problems associated with precision aiming of mechanical devices. The star tracker images selectable narrow portions of a scene, such as the sky. Each stellar sighting can image a different portion of the sky, depending on which navigational star or group of navigational stars is of interest. The selectability of the portion of the sky imaged enables the star tracker to avoid unwanted light, such as from the sun.Type: ApplicationFiled: May 14, 2013Publication date: November 20, 2014Inventors: Robin Mark Adrian Dawson, Juha Pekka Laine, Murali Chaparala