Patents Assigned to Moxtek
  • Solid phase coatings for microextraction
    Patent number: 10422725
    Abstract: An extractive system, such as SPME, has an adsorptive phase in the form of a porous coating that has essentially vertical, mutually supporting, columnar structures with nanospaces at the boundaries of the grains.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: September 24, 2019
    Assignee: Moxtek, Inc.
    Inventors: Matthew R. Linford, Anubhav Diwan, Bhupinder Singh
  • X-ray source with tube-shaped field-emitter
    Patent number: 10418221
    Abstract: An x-ray tube can include an electron-emitter, which can include a tube-shape with a minimum inside diameter of at least 0.5 millimeters. The electron-emitter can provide field-emission of electrons, and thus can avoid the electrical power required for heating, and can avoid degradation due to high temperature of, a thermionic-emission electron-emitter. This type of electron-emitter, with a tube-shape, can have a relatively large electron-emission region, allowing high electrical current without excessive current density.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: September 17, 2019
    Assignee: Moxtek, Inc.
    Inventors: Eric Miller, Bill Hansen
  • Analyzer communication
    Patent number: 10408772
    Abstract: An analysis system 10 can include an analysis tool 20, such as an XRF analyzer, a LIBS spectrometer, an XRD analyzer, or Raman spectroscopy equipment which can communicate wirelessly with other devices. The system 10 can also include remote-processor software configured to be loaded onto a handheld electronic device 23 and/or remote-computer software configured to be loaded onto a remote-computer 28. The analysis tool 20 can include a microphone 18 and/or an output device 31 to allow a user 19 to communicate conveniently with the analysis tool 20.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: September 10, 2019
    Assignee: Moxtek, Inc.
    Inventors: Vincent Floyd Jones, Daniel N. Paas, Brad Harris, Bill Hansen
  • Durable, high performance wire grid polarizer having permeable junction between top protection layer
    Patent number: 10408983
    Abstract: A method for making a wire grid polarizer (WGP) can provide WGPs with high temperature resistance, robust wires, oxidation resistance, and corrosion protection. In one embodiment, the method can comprise: (a) providing an array of wires on a bottom protection layer; (b) applying a top protection layer on the wires, spanning channels between wires; then (c) applying an upper barrier-layer on the top protection layer and into the channels through permeable junctions in the top protection layer. In a variation of this embodiment, the method can further comprise applying a lower barrier-layer before applying the top protection layer. In another variation, the bottom protection layer and the top protection layer can include aluminum oxide. In another embodiment, the method can comprise applying on the WGP an amino phosphonate then a hydrophobic chemical.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: September 10, 2019
    Assignee: Moxtek, Inc.
    Inventors: R. Stewart Nielson, Matthew C. George, Shaun Ogden, Brian Bowers
  • Small-pitch wire grid polarizer
    Patent number: 10353127
    Abstract: The wire grid polarizer (WGP) comprises an array of parallel, elongated nanostructures located over a surface of a transparent substrate and a plurality of spaces, including a space between adjacent nanostructures. Each of the nanostructures can include (1) a plurality of parallel, elongated wires located on the substrate, including an inner-pair located between an outer-pair; (2) lateral-gaps between each wire of the outer-pair and an adjacent wire of the inner-pair; (3) and a center-gap between the two wires of the inner-pair.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: July 16, 2019
    Assignee: Moxtek, Inc.
    Inventors: Bin Wang, Hua Li, Brian Bowers
  • Symmetric cube polarizing beam splitter
    Patent number: 10330946
    Abstract: A cube polarizing beam splitter (PBS) can have one or more of the following characteristics: high contrast (Tp/Ts), acceptance of a large range of incident angles, broadband, and symmetry. The cube PBS can include a pair of wire-grid polarizers sandwiched between a first prism and a second prism. There can be a boundary layer between the wire-grid polarizers. An optical path length of a transmitted beam can be equal or very close to an optical path length of a reflected beam.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: June 25, 2019
    Assignee: Moxtek, Inc.
    Inventors: Shaun Ogden, Kerry Olivier, Hua Li, David S. Crawford, David Vern Nelson
  • Multiple-stack wire grid polarizer
    Patent number: 10310155
    Abstract: A wire grid polarizer (WGP) can have improved performance due to a high aspect ratio (e.g. >3, >5, >10, >15, >20, or >30), where aspect ratio equals T/W, T is a sum of a thickness of wires of the first array 11 plus a thickness of wires of the second array 12 (i.e. T=Th11+Th12), and W is a maximum width of wires of the first array 11 and/or of the second array 12. Such high aspect ratio can be achieved with two arrays of wires 11 and 12, each capped by a thin film 01 and 02.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: June 4, 2019
    Assignee: Moxtek, Inc.
    Inventors: R. Stewart Nielson, Shaun Ogden, Matt Free, Bin Wang, Hua Li, Brian Bowers
  • Wire grid polarizer with high reflectivity on both sides
    Patent number: 10302831
    Abstract: A wire grid polarizer (WGP) 10 can include a reflective layer 15 sandwiched on each side by a pair of transparent layers (11-12 and 13-14). An index of refraction of each outer transparent layer 11 or 14 can be greater than an index of refraction of the adjacent inner transparent layer 12 or 13, respectively. Material composition of the outer transparent layers 11 and 14 can be the same, material composition of the adjacent inner transparent layers 12 and 13 can be the same. There can be high reflection of one polarization (e.g. Rs1>93% and Rs2>93%) for light incident on either side of the WGP.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: May 28, 2019
    Assignee: Moxtek, Inc.
    Inventors: Bin Wang, Shaun Ogden, R. Stewart Nielson, Hua Li, Brian Bowers
  • Embedded wire grid polarizer with high reflectivity on both sides
    Patent number: 10302832
    Abstract: A wire grid polarizer (WGP) 10 can include wires 15 sandwiched between a first pair of thin-film layers 21 (with a first transparent layer 11 and a second transparent layer 12) and a second pair of thin-film layers 22 (with a third transparent layer 13 and a fourth transparent layer 14). An index of refraction of each outer transparent layer 11 and 14 can be greater than an index of refraction of the adjacent inner transparent layer 12 and 13, respectively. Material composition of the outer transparent layers 11 and 14 can be the same and material composition of the adjacent inner transparent layers 12 and 13 can be the same. There can be high reflection of one polarization (e.g. Rs1>93% and Rs2>93%) for light incident on either side of the WGP. The wires 15 can be embedded for protection.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: May 28, 2019
    Assignee: Moxtek, Inc.
    Inventors: Bin Wang, Hua Li, Brian Bowers
  • Cube polarizer
    Patent number: 10268046
    Abstract: Cube polarizers can be designed for substantially equal optical path lengths of a reflected beam and a transmitted beam. For example, d11 of FIG. 1 can define a distance between a plane (face plane2) of the outer face (outer face2) of a second prism 16 and the first edge (first edge1) of the first prism, and d11 can be less than 400 micrometers. As another example, an optical path length differential between a transmitted beam and a reflected beam (|OPLT?OPLR|) can be < 0.5 * t * n p 2 ; where t is a thickness of the substrate between the first surface and the second surface of the substrate and np is an index of refraction of the first prism.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: April 23, 2019
    Assignee: Moxtek, Inc.
    Inventors: Austin Huang, Dean Probst, Bin Wang, Hua Li
  • X-ray tube integral heatsink
    Patent number: 10264659
    Abstract: Improved heat transfer from an x-ray tube can be accomplished with a heatsink surrounding at least part of an x-ray tube. The heatsink can be electrically connected to an anode of the x-ray tube and can be an electrical current path. The heatsink can include a plurality of protrusions extending radially outward from the x-ray tube and can be a single, integral substance extending from an inner-surface of the heatsink to a distal-end of the protrusions.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: April 16, 2019
    Assignee: Moxtek, Inc.
    Inventors: Eric Miller, Thomas E. Blair
  • High contrast inverse polarizer
    Patent number: 10234613
    Abstract: An embedded, inverse wire-grid polarizer (WGP) includes ribs 13 located over a surface of a transparent substrate 11, gaps 16 between the ribs 13, and a fill-layer 15 substantially filling the gaps 16. The fill-layer has a relatively high index of refraction, such as greater than 1.4. At a wavelength of light incident upon the WGP, E? transmission can be greater than E? transmission. E? is a polarization of light with an electric field oscillation parallel to a length L of the ribs, and E? is a polarization of light with an electric field oscillation perpendicular to a length L of the ribs. This embedded, inverse WGP is especially useful for polarizing, with high WGP performance, small wavelength (high-energy) regions of the electromagnetic spectrum (e.g. UV) which are difficult to polarize with conventional WGPs (E? transmission>E? transmission).
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: March 19, 2019
    Assignee: Moxtek, Inc.
    Inventors: Ted Wangensteen, Bin Wang, Matt George, Paul Steven Mills, Arash Farhang
  • XRF analyzer with separate source and detector heat sinks
    Patent number: 10219363
    Abstract: An XRF analyzer can include an x-ray source and an x-ray detector; an x-ray source heat-sink adjacent a side of the x-ray source; and an x-ray detector heat-sink adjacent a side of the x-ray detector. In one embodiment, the x-ray source heat-sink can be separated from the x-ray detector heat sink by a material having a thermal conductivity of less than 20 W/(m*K). In another embodiment, the x-ray source heat-sink can be separated from the x-ray detector heat sink by at least 3 millimeters of a thermally insulating material. In one embodiment, the x-ray source heat-sink can be separated from the x-ray detector heat sink by a segment of the engine component casing. Separation of the heat sinks can help avoid heat from the x-ray source adversely affecting resolution of the x-ray detector.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: February 26, 2019
    Assignee: Moxtek, Inc.
    Inventors: Vincent Floyd Jones, Daniel N. Paas
  • X-ray tube integral heatsink
    Patent number: 10182490
    Abstract: Improved heat transfer from an x-ray tube can be accomplished with a heatsink surrounding at least part of an x-ray tube. The heatsink can be electrically connected to an anode of the x-ray tube and can be an electrical current path. The heatsink can include a plurality of protrusions extending radially outward from the x-ray tube and can be a single, integral substance extending from an inner-surface of the heatsink to a distal-end of the protrusions.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: January 15, 2019
    Assignee: Moxtek, Inc.
    Inventors: Eric Miller, Thomas E. Blair
  • X-ray spot stability
    Patent number: 10178748
    Abstract: An x-ray tube can provide x-ray spot stability, even for a small x-ray tube. The x-ray tube can have small target displacement, where target displacement is a displacement of the target material, towards the electron-emitter, along a longitudinal-axis of the anode, from x-ray powered-off state to stable operation, based on elongation of the anode. The x-ray tube can include a heatsink with an array of fins extending away from a base in opposite directions. A first fan can be attached to one end of the array of fins, oriented to face the base, and configured to direct an airstream towards the base. A second fan can be attached to opposite ends, oriented to face away from the base, and configured to draw the airstream from the base. Plate(s) can be located on sides of the fins to direct air flow from the first fan to the second fan.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: January 8, 2019
    Assignee: Moxtek, Inc.
    Inventors: Rick Steck, Todd S. Parker
  • Dual-purpose, absorptive, reflective wire grid polarizer
    Patent number: 10175401
    Abstract: A WGP 10 can include an array of parallel, elongated rods 14 located over a surface of a transparent substrate 11 with gaps 15 between adjacent rods 14. Each of the rods 14 can include a reflective wire 13 sandwiched between ribs 12. One of the ribs 12 can be a transparent rib and one can be an absorptive rib. The WGP 10 can have high efficiency and high contrast for light entering on the transparent rib side and low Rs for light entering on the absorptive rib side.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: January 8, 2019
    Assignee: Moxtek, Inc.
    Inventors: R. Stewart Nielson, Bradley R. Williams
  • XRF analyzer for light element detection
    Patent number: 10175184
    Abstract: The invention includes an XRF analyzer with reduced x-ray attenuation between sample and target and between sample and detector. Attenuation can be reduced by removing atmospheric-air paths through which the x-rays must travel. Reduced x-ray attenuation can allow for easier detection of low-atomic-number elements. Cost saving can be achieved by reducing the number of x-ray windows.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: January 8, 2019
    Assignee: Moxtek, Inc.
    Inventors: Richard Creighton, Steven Morris, Shawn Chin, Sanjay Kamtekar
  • Wire grid polarizer with high reflectivity on both sides
    Patent number: 10139538
    Abstract: A wire grid polarizer (WGP) 10 can include a reflective layer 15 sandwiched on each side by a pair of transparent layers (11-12 and 13-14). An index of refraction of each outer transparent layer 11 or 14 can be greater than an index of refraction of the adjacent inner transparent layer 12 or 13, respectively. Material composition of the outer transparent layers 11 and 14 can be the same, material composition of the adjacent inner transparent layers 12 and 13 can be the same. There can be high reflection of one polarization (e.g. Rs1>93% and Rs2>93%) for light incident on either side of the WGP.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: November 27, 2018
    Assignee: Moxtek, Inc.
    Inventors: Bin Wang, Shaun Ogden, R. Stewart Nielson, Hua Li, Brian Bowers
  • Embedded wire grid polarizer with high reflectivity on both sides
    Patent number: 10139536
    Abstract: A wire grid polarizer (WGP) 10 can include wires 15 sandwiched between a first pair of thin-film layers 21 (with a first transparent layer 11 and a second transparent layer 12) and a second pair of thin-film layers 22 (with a third transparent layer 13 and a fourth transparent layer 14). An index of refraction of each outer transparent layer 11 and 14 can be greater than an index of refraction of the adjacent inner transparent layer 12 and 13, respectively. Material composition of the outer transparent layers 11 and 14 can be the same and material composition of the adjacent inner transparent layers 12 and 13 can be the same. There can be high reflection of one polarization (e.g. Rs1>93% and Rs2>93%) for light incident on either side of the WGP. The wires 15 can be embedded for protection.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: November 27, 2018
    Assignee: Moxtek, Inc.
    Inventors: Bin Wang, Hua Li, Brian Bowers
  • Multiple-stack wire grid polarizer
    Patent number: 10139537
    Abstract: A wire grid polarizer (WGP) can have improved performance due to a high aspect ratio (e.g. >3, >5, >10, >15, >20, or >30), where aspect ratio equals T/W, T is a sum of a thickness of wires of the first array 11 plus a thickness of wires of the second array 12 (i.e. T=Th11+Th12), and W is a maximum width of wires of the first array 11 and/or of the second array 12. Such high aspect ratio can be achieved with two arrays of wires 11 and 12, each capped by a thin film 01 and 02.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: November 27, 2018
    Assignee: Moxtek, Inc.
    Inventors: R. Stewart Nielson, Shaun Ogden, Matt Free, Bin Wang, Hua Li, Brian Bowers