Patents Assigned to Moxtek, Inc.
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Patent number: 10234613Abstract: 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: GrantFiled: June 23, 2017Date of Patent: March 19, 2019Assignee: Moxtek, Inc.Inventors: Ted Wangensteen, Bin Wang, Matt George, Paul Steven Mills, Arash Farhang
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Patent number: 10219363Abstract: 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: GrantFiled: March 26, 2018Date of Patent: February 26, 2019Assignee: Moxtek, Inc.Inventors: Vincent Floyd Jones, Daniel N. Paas
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Patent number: 10182490Abstract: 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: GrantFiled: August 4, 2016Date of Patent: January 15, 2019Assignee: Moxtek, Inc.Inventors: Eric Miller, Thomas E. Blair
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Patent number: 10178748Abstract: 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: GrantFiled: March 10, 2017Date of Patent: January 8, 2019Assignee: Moxtek, Inc.Inventors: Rick Steck, Todd S. Parker
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Patent number: 10175184Abstract: 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: GrantFiled: June 2, 2016Date of Patent: January 8, 2019Assignee: Moxtek, Inc.Inventors: Richard Creighton, Steven Morris, Shawn Chin, Sanjay Kamtekar
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Patent number: 10175401Abstract: 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: GrantFiled: September 14, 2016Date of Patent: January 8, 2019Assignee: Moxtek, Inc.Inventors: R. Stewart Nielson, Bradley R. Williams
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Patent number: 10139538Abstract: 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: GrantFiled: September 26, 2017Date of Patent: November 27, 2018Assignee: Moxtek, Inc.Inventors: Bin Wang, Shaun Ogden, R. Stewart Nielson, Hua Li, Brian Bowers
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Patent number: 10139536Abstract: 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: GrantFiled: September 26, 2017Date of Patent: November 27, 2018Assignee: Moxtek, Inc.Inventors: Bin Wang, Hua Li, Brian Bowers
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Patent number: 10139537Abstract: 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: GrantFiled: September 26, 2017Date of Patent: November 27, 2018Assignee: Moxtek, Inc.Inventors: R. Stewart Nielson, Shaun Ogden, Matt Free, Bin Wang, Hua Li, Brian Bowers
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Patent number: 10114161Abstract: A wire grid polarizer comprising on array of parallel, elongated first rib groups disposed over a substrate. Each first rib group can comprise a central first transmissive rib and a pair of first wires including a first wire disposed along each side of the first transmissive rib. A first dielectric material can substantially fill first gaps between each rib group and an adjacent rib group. An array of parallel, elongated second wires can be disposed over the rib groups and the first dielectric material. The first wires or the second wires can be absorptive and the other of the first wires or the second wires can be reflective.Type: GrantFiled: August 26, 2016Date of Patent: October 30, 2018Assignee: Moxtek, Inc.Inventors: Bin Wang, Mark Davis
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Patent number: 10054717Abstract: A wire grid polarizer (WGP) can have a conformal-coating to protect the WGP from oxidation and/or corrosion. The conformal-coating can include a barrier layer with at least one: of aluminum oxide, silicon oxide, silicon nitride, silicon oxynitride, silicon carbide, hafnium oxide, and zirconium oxide. A method of making a WGP can include applying the barrier layer over ribs of a WGP by vapor deposition.Type: GrantFiled: March 23, 2016Date of Patent: August 21, 2018Assignee: Moxtek, Inc.Inventors: Ted Wangensteen, Stew Nielson, Fred Lane, Matt Linford, Anubhav Diwan, Matthew C. George
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Patent number: 10025015Abstract: A wire grid polarizer (WGP) can have a phosphonate conformal-coating to protect the WGP from at least one of the following: corrosion, dust, and damage due to tensile forces in a liquid on the WGP. The conformal-coating can include a chemical: where R1 can include a hydrophobic group, Z can include a bond to the ribs, and R5 can be any suitable chemical element or group. A method of applying a phosphonate conformal-coating over a WGP can include exposing the WGP to (R1)iPO(R4)j(R5)k, where: i is 1 or 2, j is 1 or 2, k is 0 or 1, and i+j+k=3; each R1 can independently include a hydrophobic group; R4 can include a phosphonate-reactive-group; each R6 can independently include an alkyl group, an aryl group, or combinations thereof; and each R5, if any, can independently be any suitable chemical element or group.Type: GrantFiled: June 5, 2017Date of Patent: July 17, 2018Assignee: Moxtek, Inc.Inventors: Matt Linford, Anubhav Diwan, Fred Lane, Stew Nielson, Ted Wangensteen
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Patent number: 9995864Abstract: A wire grid polarizer (WGP) can have a conformal-coating to protect the WGP from at least one of the following: corrosion, dust, and damage due to tensile forces in a liquid on the WGP. The conformal-coating can include a silane conformal-coating with chemical formula (1), chemical formula (2), or combinations thereof: A method of applying a conformal-coating over a WGP can include exposing the WGP to Si(R1)d(R2)e(R3)g. In the above WGP and method, X can be a bond to the ribs; each R1 can be a hydrophobic group; each R3, if any, can be any chemical element or group; d can be 1, 2, or 3, e can be 1, 2, or 3, g can be 0, 1, or 2, and d+e+g=4; R2 can be a silane-reactive-group; and each R6 can be an alkyl group, an aryl group, or combinations thereof.Type: GrantFiled: March 23, 2016Date of Patent: June 12, 2018Assignee: Moxtek, Inc.Inventors: Anubhav Diwan, Matt Linford, Fred Lane, Matthew C. George
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Patent number: 9961753Abstract: A portable XRF analyzer includes a hand shield and a handle. In one embodiment, the XRF analyzer further comprises a power component spaced-apart from an engine component. The handle and the hand shield extend in parallel between the engine component and the power component, attaching the engine component to the power component. In another embodiment, the XRF analyzer further comprises two housing portions, each integrally formed in a single, monolithic body formed together at the same time. The two housing portions are joined together to form an XRF analyzer housing. In another embodiment, the hand shield is shorter than the handle.Type: GrantFiled: June 26, 2017Date of Patent: May 1, 2018Assignee: Moxtek, Inc.Inventors: Vincent Floyd Jones, Daniel N. Paas
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Patent number: 9939351Abstract: 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: GrantFiled: December 8, 2014Date of Patent: April 10, 2018Assignee: Moxtek, Inc.Inventors: Matthew R. Linford, Anubhav Diwan, Bhupinder Singh
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Patent number: 9869898Abstract: A selectively-absorptive wire grid polarizer comprising an array of parallel, elongated rods disposed over a surface of a transparent substrate with gaps between adjacent rods, each of the rods including a reflective wire sandwiched between two absorptive ribs. A method of making this wire grid polarizer. A use of this wire grid polarizer in an image projection system.Type: GrantFiled: March 14, 2017Date of Patent: January 16, 2018Assignee: Moxtek, Inc.Inventors: R. Stewart Nielson, Bradley R. Williams, Benjamin Downard, D. Brent Willamson
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Patent number: 9851591Abstract: An optical device can be used for circularly polarizing light and/or removing reflected light from an optical system (optical isolation). The optical device can have a polarizing-cube including a pair of prisms and a polarizer. Each prism can have two ends linked by an inner face and two outer faces. The prisms can be attached together at the inner face of each with the polarizer sandwiched between the prisms. Fresnel rhomb(s) can be attached to outer face(s) of the prisms.Type: GrantFiled: January 12, 2017Date of Patent: December 26, 2017Assignee: Moxtek, Inc.Inventor: David Vern Nelson
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Patent number: 9839107Abstract: A method and system for reducing static charges on a material. X-rays can ionize a flowing fluid. The ions can be transported to the material and can reduce or dissipate the static charges.Type: GrantFiled: March 9, 2016Date of Patent: December 5, 2017Assignee: Moxtek, Inc.Inventor: Eric Miller
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Patent number: 9839106Abstract: The invention includes a flat-panel-display (FPD) manufacturing machine which utilizes x-rays for electrostatic dissipation of a bottom side of a FPD when lifting the FPD off of a table during manufacture of the FPD. The invention also includes a method of electrostatic dissipation of a bottom side of an FPD.Type: GrantFiled: October 28, 2015Date of Patent: December 5, 2017Assignee: Moxtek, Inc.Inventors: Eric Miller, Steven West Wilson, Sanjay Kamtekar, Bill Hansen, Brad Harris
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Patent number: 9839108Abstract: The invention includes various electronic devices for avoiding or minimizing XRF analyzer user fatigue. In one embodiment, the XRF analyzer can include a finger tap switch for activating the XRF analysis. In another embodiment, the XRF analyzer can include a hand sensor and a finger tap switch, activation of both required to activate the XRF analysis. In another embodiment, the XRF analyzer can include a microphone capable of receiving a verbal command from a user and a finger tap switch, both receipt of the verbal command and activation of the finger tap switch required to activate the XRF analysis. Additional benefits of some embodiments include improving XRF analysis safety and avoiding XRF analyzer theft.Type: GrantFiled: May 3, 2017Date of Patent: December 5, 2017Assignee: Moxtek, Inc.Inventors: Vincent Floyd Jones, Daniel N. Paas, Brad Harris