Patents by Inventor David G. Nilson

David G. Nilson 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).

  • Patent number: 10130318
    Abstract: An integrated microtomography and optical imaging system includes a rotating table that supports an imaging object, an optical stage, and separate optical and microtomography imaging systems. The table rotates the imaging object about a vertical axis running therethrough to a plurality of different rotational positions during a combined microtomography and optical imaging process. The optical stage can be a trans-illumination, epi-illumination or bioluminescent stage. The optical imaging system includes a camera positioned vertically above the imaging object. The microtomography system includes an x-ray source positioned horizontally with respect to the imaging object. Optical and x-ray images are both obtained while the imaging object remains in place on the rotating table. The stage and table are included within an imaging chamber, and all components are included within a portable cabinet.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: November 20, 2018
    Assignee: Caliper Life Sciences, Inc.
    Inventors: Daniel G. Stearns, David G. Nilson, Bradley W. Rice
  • Publication number: 20180008218
    Abstract: An integrated microtomography and optical imaging system includes a rotating table that supports an imaging object, an optical stage, and separate optical and microtomography imaging systems. The table rotates the imaging object about a vertical axis running therethrough to a plurality of different rotational positions during a combined microtomography and optical imaging process. The optical stage can be a trans-illumination, epi-illumination or bioluminescent stage. The optical imaging system includes a camera positioned vertically above the imaging object. The microtomography system includes an x-ray source positioned horizontally with respect to the imaging object. Optical and x-ray images are both obtained while the imaging object remains in place on the rotating table. The stage and table are included within an imaging chamber, and all components are included within a portable cabinet.
    Type: Application
    Filed: August 17, 2017
    Publication date: January 11, 2018
    Inventors: Daniel G. Stearns, David G. Nilson, Bradley W. Rice
  • Patent number: 9770220
    Abstract: An integrated microtomography and optical imaging system includes a rotating table that supports an imaging object, an optical stage, and separate optical and microtomography imaging systems. The table rotates the imaging object about a vertical axis running therethrough to a plurality of different rotational positions during a combined microtomography and optical imaging process. The optical stage can be a trans-illumination, epi-illumination or bioluminescent stage. The optical imaging system includes a camera positioned vertically above the imaging object. The microtomography system includes an x-ray source positioned horizontally with respect to the imaging object. Optical and x-ray images are both obtained while the imaging object remains in place on the rotating table. The stage and table are included within an imaging chamber, and all components are included within a portable cabinet.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: September 26, 2017
    Assignee: Caliper Life Sciences, Inc.
    Inventors: Daniel G. Stearns, David G. Nilson, Bradley W. Rice
  • Publication number: 20160228079
    Abstract: An integrated microtomography and optical imaging system includes a rotating table that supports an imaging object, an optical stage, and separate optical and microtomography imaging systems. The table rotates the imaging object about a vertical axis running therethrough to a plurality of different rotational positions during a combined microtomography and optical imaging process. The optical stage can be a trans-illumination, epi-illumination or bioluminescent stage. The optical imaging system includes a camera positioned vertically above the imaging object. The microtomography system includes an x-ray source positioned horizontally with respect to the imaging object. Optical and x-ray images are both obtained while the imaging object remains in place on the rotating table. The stage and table are included within an imaging chamber, and all components are included within a portable cabinet.
    Type: Application
    Filed: April 14, 2016
    Publication date: August 11, 2016
    Inventors: Daniel G. Stearns, David G. Nilson, Bradley W. Rice
  • Patent number: 9314218
    Abstract: An integrated microtomography and optical imaging system includes a rotating table that supports an imaging object, an optical stage, and separate optical and microtomography imaging systems. The table rotates the imaging object about a vertical axis running therethrough to a plurality of different rotational positions during a combined microtomography and optical imaging process. The optical stage can be a trans-illumination, epi-illumination or bioluminescent stage. The optical imaging system includes a camera positioned vertically above the imaging object. The microtomography system includes an x-ray source positioned horizontally with respect to the imaging object. Optical and x-ray images are both obtained while the imaging object remains in place on the rotating table. The stage and table are included within an imaging chamber, and all components are included within a portable cabinet.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: April 19, 2016
    Assignee: Caliper Life Sciences, Inc.
    Inventors: Daniel G. Stearns, David G. Nilson, Bradley W. Rice
  • Publication number: 20120321033
    Abstract: An integrated microtomography and optical imaging system includes a rotating table that supports an imaging object, an optical stage, and separate optical and microtomography imaging systems. The table rotates the imaging object about a vertical axis running therethrough to a plurality of different rotational positions during a combined microtomography and optical imaging process. The optical stage can be a trans-illumination, epi-illumination or bioluminescent stage. The optical imaging system includes a camera positioned vertically above the imaging object. The microtomography system includes an x-ray source positioned horizontally with respect to the imaging object. Optical and x-ray images are both obtained while the imaging object remains in place on the rotating table. The stage and table are included within an imaging chamber, and all components are included within a portable cabinet.
    Type: Application
    Filed: June 20, 2011
    Publication date: December 20, 2012
    Applicant: CALIPER LIFE SCIENCES, INC.
    Inventors: Daniel G. STEARNS, David G. NILSON, Bradley W. RICE
  • Publication number: 20120041302
    Abstract: An imaging subject handling system includes multiple portable imaging subject cartridges that optionally compress and anesthetize living imaging subjects therein during imaging, multiple receiving bases installed within separate imaging systems that interface with the cartridges, and multiple gas delivery systems that deliver an anesthetic gas flow to an installed cartridge. The cartridges include a gas delivery interface that accepts the anesthetic gas flow and provides it to the imaging subject, and one or more walls, a bottom and a top defining a closed interior that retains the anesthetic gas therewithin while the cartridge is in transport between separate imaging systems. The walls, bottom and/or top can be optically transparent and radiolucent to facilitate imaging. The cartridge can include a locking mechanism, a nose cone for the imaging subject, and co-registration features located on outside surfaces to facilitate the merging of images within software from multiple separate imaging systems.
    Type: Application
    Filed: August 16, 2010
    Publication date: February 16, 2012
    Applicant: CALIPER LIFE SCIENCES, INC.
    Inventors: David G. NILSON, Bradley W. RICE, Heng XU, Tamara L. TROY
  • Patent number: 7649185
    Abstract: Described herein is a phantom device that simplifies usage, testing, and development of light imaging systems. The phantom device includes a body and a fluorescent light source internal to the body. The body comprises an optical material designed to at least partially resemble the optical behavior of mammalian tissue. The phantom device has many uses. One use of the phantom device permits testing of tomography software in the imaging system, such as software configured for 3D reconstruction of the fluorescent light source. Another use tests spectral unmixing software in the imaging system. The phantom device also allows a user to compare trans- and epi-fluorescent illumination imaging results.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: January 19, 2010
    Assignee: Xenogen Corporation
    Inventors: Bradley W. Rice, David G. Nilson, Tamara L. Troy
  • Patent number: 7629573
    Abstract: The present invention relates to a phantom device that simplifies usage and testing of a low intensity light imaging system. The phantom device includes a body and a light source internal to the body. The body comprises an optically selective material designed to at least partially resemble the optical behavior of mammalian tissue. Imaging the light source or phantom device may incorporate known properties of the optically selective material. Testing methods described herein assess the performance of a low-level light imaging system (such as the software) by processing light output by the phantom device and comparing the output against known results. The assessment builds a digital representation of the light source or test device and compares one or more components of the digital representation against one or more known properties for the light source or the test device.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: December 8, 2009
    Assignee: Xenogen Corporation
    Inventors: Bradley W. Rice, David G. Nilson, Normand P. Nantel, Tamara L. Troy
  • Patent number: 7555334
    Abstract: Disclosed are methods and apparatus for collecting light emitted from an animal, where a luminescent reporter has been injected into the animal is disclosed. The apparatus includes a chamber for receiving the animal, wherein the chamber is light tight preventing a substantial portion of light emitted from the animal from escaping the chamber when the chamber is closed and the animal is inside the chamber and a light monitoring device for collecting light from different portions of the animal when the animal is inside the closed chamber. The light monitoring device is arranged to collect light over substantially the entire surface area of the body and head of the animal, and the light monitoring device generates a quantified value based on the light collected from the animal. The animal does not have to be under anesthesia.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: June 30, 2009
    Assignee: Xenogen Corporation
    Inventors: Olivier Coquoz, Bradley W. Rice, David G. Nilson, Michael D. Cable
  • Patent number: 6901279
    Abstract: An improved imaging apparatus is disclosed that allows a user to perform numerous imaging operations. The imaging apparatus may include one or more improvements to imaging box design to improve illumination control within the imaging box, such as improved door seal arrangements, improved door closing mechanisms, and improved light seals. The present invention may also include one or more improvements to imaging apparatus design to facilitate image capture, such as: an automated filter select device, a moveable stage, automated focus control, f-stop adjustment and stage height, and improved internal illumination for capturing photographic images.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: May 31, 2005
    Assignee: Xenogen Corporation
    Inventors: Michael D. Cable, Michael Bo Nelson, Bradley W. Rice, Christopher A. Rasco, David N Sprague, David G. Nilson, Rick Dalgetty
  • Patent number: 6775567
    Abstract: An improved imaging apparatus is disclosed that allows a user to perform numerous imaging operations. The imaging apparatus may include one or more improvements to imaging box design to improve illumination control within the imaging box, such as improved door seal arrangements, improved door closing mechanisms, and improved light seals. The present invention may also include one or more improvements to imaging apparatus design to facilitate image capture, such as: an automated filter select device, a moveable stage, automated focus control, f-stop adjustment and stage height, and improved internal illumination for capturing photographic images.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: August 10, 2004
    Assignee: Xenogen Corporation
    Inventors: Michael D. Cable, Michael Bo Nelson, Bradley W. Rice, Christopher A. Rasco, David N Sprague, David G. Nilson, Rick Dalgetty
  • Publication number: 20040127781
    Abstract: An improved imaging apparatus is disclosed that allows a user to perform numerous imaging operations. The imaging apparatus may include one or more improvements to imaging box design to improve illumination control within the imaging box, such as improved door seal arrangements, improved door closing mechanisms, and improved light seals. The present invention may also include one or more improvements to imaging apparatus design to facilitate image capture, such as: an automated filter select device, a moveable stage, automated focus control, f-stop adjustment and stage height, and improved internal illumination for capturing photographic images.
    Type: Application
    Filed: February 21, 2001
    Publication date: July 1, 2004
    Applicant: Xenogen Corporation
    Inventors: Michael D. Cable, Michael Bo Nelson, Bradley W. Rice, Christopher A. Rasco, David N. Sprague, David G. Nilson, Rick Dalgetty
  • Patent number: 4730106
    Abstract: An optical fiducial timing system is provided for use with interdependent groups of X-ray streak cameras (18). The aluminum coated (80) ends of optical fibers (78) are positioned with the photocathodes (20, 60, 70) of the X-ray streak cameras (18). The other ends of the optical fibers (78) are placed together in a bundled array (90). A fiducial optical signal (96), that is comprised of 2.omega. or 1.omega. laser light, after introduction to the bundled array (90), travels to the aluminum coated (82) optical fiber ends and ejects quantities of electrons (84) that are recorded on the data recording media (52) of the X-ray streak cameras (18). Since both 2.omega. and 1.omega. laser light can travel long distances in optical fiber with only a slight attenuation, the initial arial power density of the fiducial optical signal (96) is well below the damage threshold of the fused silica or other material that comprises the optical fibers (78, 90).
    Type: Grant
    Filed: December 4, 1986
    Date of Patent: March 8, 1988
    Assignee: United States Department of Energy
    Inventors: David G. Nilson, E. Michael Campbell, Brian J. MacGowan, Hector Medecki
  • Patent number: D469181
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: January 21, 2003
    Assignee: Xenogen Corporation
    Inventors: David G. Nilson, Bradley W. Rice, Michael D. Cable, Mike R. Massucco, Matthew D. Hern, Matthew P. Presta