Patents by Inventor J. Field
J. Field 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: 6141465Abstract: A flat panel display is based on a new switching technology for routing laser light among a set of optical waveguides and coupling that light toward the viewer. The switching technology is based on poled electro-optical structures. The display technology is versatile enough to cover application areas spanning the range from miniature high resolution computer displays to large screen displays for high definition television formats. The invention combines the high brightness and power efficiency inherent in visible semiconductor diode laser sources with a new waveguide electro-optical switching technology to form a dense two-dimensional addressable array of high brightness light emissive pixels.Type: GrantFiled: June 13, 1997Date of Patent: October 31, 2000Assignee: Gemfire CorporationInventors: William K. Bischel, Michael J. Brinkman, David A. G. Deacon, Edward J. De Wath, Mark J. Dyer, Simon J. Field
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Patent number: 6118908Abstract: A flat panel display is based on a new switching technology for routing laser light among a set of optical waveguides and coupling that light toward the viewer. The switching technology is based on poled electro-optical structures. The display technology is versatile enough to cover application areas spanning the range from miniature high resolution computer displays to large screen displays for high definition television formats. The invention combines the high brightness and power efficiency inherent in visible semiconductor diode laser sources with a new waveguide electro-optical switching technology to form a dense two-dimensional addressable array of high brightness light emissive pixels.Type: GrantFiled: June 15, 1999Date of Patent: September 12, 2000Assignee: Gemfire CorporationInventors: William K. Bischel, Michael J. Brinkman, David A. G. Deacon, Edward J. DeWath, Mark J. Dyer, Simon J. Field
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Patent number: 6078704Abstract: A flat panel display is based on a new switching technology for routing laser light among a set of optical waveguides and coupling that light toward the viewer. The switching technology is based on poled electro-optical structures. The display technology is versatile enough to cover application areas spanning the range from miniature high resolution computer displays to large screen displays for high definition television formats. The invention combines the high brightness and power efficiency inherent in visible semiconductor diode laser sources with a new waveguide electro-optical switching technology to form a dense two-dimensional addressable array of high brightness light emissive pixels.Type: GrantFiled: January 20, 1999Date of Patent: June 20, 2000Assignee: Gemfire CorporationInventors: William K. Bischel, Michael J. Brinkman, David A. G. Deacon, Edward J. DeWath, Mark J. Dyer, Simon J. Field
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Patent number: 6015671Abstract: Described are preferred myocardial grafts of skeletal myoblasts or cardiomyocytes, and cellular compositions and methods useful in obtaining the grafts. The myocardial grafts are stable and can be used, for example, to deliver recombinant proteins directly to the heart.Type: GrantFiled: November 21, 1997Date of Patent: January 18, 2000Assignee: Indiana University FoundationInventor: Loren J. Field
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Patent number: 5978524Abstract: A flat panel display is based on a new switching technology for routing laser light among a set of optical waveguides and coupling that light toward the viewer. The switching technology is based on poled electro-optical structures. The display technology is versatile enough to cover application areas spanning the range from miniature high resolution computer displays to large screen displays for high definition television formats. The invention combines the high brightness and power efficiency inherent in visible semiconductor diode laser sources with a new waveguide electro-optical switching technology to form a dense two-dimensional addressable array of high brightness light emissive pixels.Type: GrantFiled: June 16, 1997Date of Patent: November 2, 1999Assignee: Gemfire CorporationInventors: William K. Bischel, Michael J. Brinkman, David A. G. Deacon, Edward J. DeWath, Mark J. Dyer, Simon J. Field
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Patent number: 5912997Abstract: A flat panel display is based on a new switching technology for routing laser light among a set of optical waveguides and coupling that light toward the viewer. The switching technology is based on poled electro-optical structures. The display technology is versatile enough to cover application areas spanning the range from miniature high resolution computer displays to large screen displays for high definition television formats. The invention combines the high brightness and power efficiency inherent in visible semiconductor diode laser sources with a new waveguide electro-optical switching technology to form a dense two-dimensional addressable array of high brightness light emissive pixels.Type: GrantFiled: June 16, 1997Date of Patent: June 15, 1999Assignee: Gemfire CorporationInventors: William K. Bischel, Michael J. Brinkman, David A.G. Deacon, Edward J. DeWath, Mark J. Dyer, Simon J. Field
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Patent number: 5911018Abstract: An extremely low-loss optical switch element includes a first waveguide segment having first and second regions longitudinally-adjacent with each other and having an index of refraction difference which is greater when the switch element is in an "on" state than when it is in an "off" state. The two regions have a common boundary which is oriented at an angle in the first waveguide so as to redirect optical energy through total internal reflection when the switch element is in the "on" state. The switch element further includes a second waveguide segment spaced from the first waveguide segment and disposed and oriented to guide optical energy redirected from the first waveguide segment when the switch element is in the "on" state.Type: GrantFiled: November 18, 1997Date of Patent: June 8, 1999Assignee: Gemfire CorporationInventors: William K. Bischel, Michael J. Brinkman, David A.G. Deacon, Edward J. DeWath, Mark J. Dyer, Simon J. Field
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Patent number: 5852688Abstract: Method for optical energy transfer and energy guidance uses an electric field to control energy propagation using a class of poled structures in solid material. The poled structures, which may form gratings in thin film or bulk configurations, may be combined with waveguide structures. Electric fields are applied to the poled structures to control routing of optical energy. Techniques include frequency-selective switchable- and adjustable-tunable reflection, splitting, directional coupling, frequency-tunable switching and efficient beam combining, as well as polarized beam combining. Adjustable tunability is obtained by a poled structure which produces a spatial gradient in a variable index of refraction along an axis in the presence of a variable electric field. In one embodiment, the present invention is a method of switching a grating which consists of a poled material with an alternating domain structure of specific period.Type: GrantFiled: July 31, 1997Date of Patent: December 22, 1998Assignee: Gemfire CorporationInventors: Michael J. Brinkman, David A. G. Deacon, William K. Bischel, Simon J. Field
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Patent number: 5835458Abstract: An optical beam routing apparatus is constructed of solid material in which is embedded a beam routing array structure (1370) which has at least a first waveguide segment (1376) traversing the solid material along a plane, second waveguide segments (1378) traversing the solid material along the same plane and encountering the first waveguide segment at a plurality of intersections, electrically-controlled gratings 1372, 1373) disposed transverse to the intersections to controllably reflect optical energy between the first waveguide segment and the second waveguide segments, and optical reflectors (1374, 1375) at selected locations in line with the second waveguide segments (1378) for projecting optical energy into and/or out of the plane from a selected position (1382) on an-out-of-plane medium which might contain optically readable or writable information, such as a disc.Type: GrantFiled: March 6, 1997Date of Patent: November 10, 1998Assignee: Gemfire CorporationInventors: William K. Bischel, David A. G. Deacon, Michael J. Brinkman, Simon J. Field, Edward J. DeWath, Mark J. Dyer
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Patent number: 5796028Abstract: Soft body armour has a ballistic panel having an interleaved construction of a generally vertically oriented plurality of layers of interleaved sheets of aramid fibre cloth and sheets of high molecular weight polyethylene filaments in a flexible resin matrix adjacently interleaved in an interleave ratio of plies of high molecular weight polyethylene filaments in a flexible resin matrix to plies of aramid fibre cloth within each layer of the plurality of layers, the plurality of layers forming a non-quilted array between a front face of the ballistic panel and a back face of the ballistic panel, wherein the interleave ratio of plies of high molecular weight polyethylene filaments in a flexible resin matrix to plies of aramid fibre cloth within each layer of the plurality of layers is between 1:1 and 4:4, and wherein the total number of the plies of high molecular weight polyethylene filaments in a flexible resin matrix is equal to or greater than the total number of the plies of aramid fibre cloth within the pType: GrantFiled: August 17, 1995Date of Patent: August 18, 1998Assignee: Pacific Safety Products, Inc.Inventors: Bradley J. Field, Roger Soar
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Patent number: 5781670Abstract: Optical energy transfer devices and energy guiding devices use an electric field to control energy propagation using a class of poled structures in solid material in channel dropping filter and splitter applications. The poled structures, which may form gratings in thin film or bulk configurations, may be combined with waveguide structures. Electric fields applied to the poled structures control routing of optical energy. In a particular embodiment, an electrode confronts a solid material and bridges at least two elements of a grating disposed transverse of two waveguide segments and overlaps evanescent fields of optical energy in one of the waveguide segments. A switchable grating consists of a poled material with an alternating domain structure of specific period. In a further embodiment there may be an optically active cladding between a grating and a waveguide. Additional electrodes may be provided for independent tuning of the cladding and the grating structure.Type: GrantFiled: May 10, 1996Date of Patent: July 14, 1998Assignee: Gemfire CorporationInventors: David A. G. Deacon, Michael J. Brinkman, William K. Bischel, Simon J. Field
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Patent number: 5733727Abstract: Described are preferred myocardial grafts of skeletal myoblasts or cardiomyocytes, and cellular compositions and methods useful in obtaining the grafts. The myocardial grafts are stable and can be used, for example, to deliver recombinant proteins directly to the heart.Type: GrantFiled: June 7, 1995Date of Patent: March 31, 1998Assignee: Indiana University FoundationInventor: Loren J. Field
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Patent number: 5732177Abstract: A new class of energy interaction devices, particularly optical energy transfer devices and energy guiding devices, use an energy field, particularly an electric field, applied to a poled structure to control energy propagation in a solid material. The poled structures, which may form gratings in thin film or bulk configurations, may be combined with waveguide structures to guide energy beams such as optical or acoustic beams. Electric fields applied to the poled structures, such as electrically-activated gratings, control routing of optical energy. Optical devices include but are not limited to, frequency-selective switchable- and adjustably-tunable reflectors, splitters, directional couplers, frequency-tunable switches and efficient beam combiners, as well as polarized beam combiners, am and fm modulators, mode selectors, energy transfer devices, optical data readers, panel display devices, and waveguide/reflector switching arrays.Type: GrantFiled: November 8, 1996Date of Patent: March 24, 1998Assignee: Deacon ResearchInventors: David A. G. Deacon, Michael J. Brinkman, William K. Bischel, Simon J. Field
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Patent number: 5724463Abstract: A projection display is based on a new switching technology for routing laser light among a set of optical waveguides and coupling that light toward the viewer. The switching technology is based on poled electro-optical structures. The display technology is versatile enough to cover application areas spanning the range from miniature high resolution computer displays to large screen displays for high definition television formats. The invention combines the high brightness and power efficiency inherent in visible semiconductor diode laser sources with a new waveguide electro-optical switching technology to form a dense two-dimensional addressable array of high brightness light emissive pixels. This invention provides an all solid-state, full color, high resolution projection display suitable for displaying computer generated information and full motion HDTV.Type: GrantFiled: February 7, 1997Date of Patent: March 3, 1998Assignee: Deacon ResearchInventors: David A. G. Deacon, William K. Bischel, Michael J. Brinkman, Edward J. DeWath, Mark J. Dryer, Simon J. Field
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Patent number: 5664032Abstract: A flat panel display is based on a new switching technology for routing laser light among a set of optical waveguides and coupling that light toward the viewer. The switching technology is based on poled electro-optical structures. The display technology is versatile enough to cover application areas spanning the range from miniature high resolution computer displays to large screen displays for high definition television formats. The invention combines the high brightness and power efficiency inherent in visible semiconductor diode laser sources with a new waveguide electro-optical switching technology to form a dense two-dimensional addressable array of high brightness light emissive pixels.Type: GrantFiled: March 12, 1996Date of Patent: September 2, 1997Assignee: Deacon ResearchInventors: William K. Bischel, Michael J. Brinkman, David A. G. Deacon, Edward J. DeWath, Mark J. Dyer, Simon J. Field
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Patent number: 5653318Abstract: A hard-shell bottom for releasable attachment to a soft-sided carrying case has a lower exterior surface comprising a fluid impermeable base platform having a lower surface and substantially vertical side surfaces contiguous to the lower surface and extending continuously around the lower surface so as to form a container having interior surfaces. The lower surface is sized to correspond in shape to the lower exterior surface of the soft-sided carrying case and the side surfaces sized to snugly fit over side portions of the lower exterior surface of the soft-sided carrying case. The releasable fasteners are attached to at least one surface of the interior surfaces for releasable mating securement to corresponding releasable fasteners means attached to the lower exterior surface of the soft-sided carrying case.Type: GrantFiled: June 20, 1995Date of Patent: August 5, 1997Inventor: Bradley J. Field
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Patent number: 5652817Abstract: A new class of optical energy transfer devices and energy guiding devices uses an electric field to control energy propagation using a class of poled structures in solid material. The poled structures, which may form gratings in thin film or bulk configurations, may be combined with waveguide structures. Electric fields applied to the poled structures control routing of optical energy. Devices include splitters, parallel and Y couplers, mode converters and energy leakage attenuators.Type: GrantFiled: June 12, 1996Date of Patent: July 29, 1997Assignee: Deacon ResearchInventors: Michael J. Brinkman, David A. G. Deacon, William K. Bischel, Simon J. Field
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Patent number: 5647036Abstract: A projection display is based on a new switching technology for routing laser light among a set of optical waveguides and coupling that light toward the viewer. The switching technology is based on poled electro-optical structures. The display technology is versatile enough to cover application areas spanning the range from miniature high resolution computer displays to large screen displays for high definition television formats. The invention combines the high brightness and power efficiency inherent in visible semiconductor diode laser sources with a new waveguide electro-optical switching technology to form a dense two-dimensional addressable array of high brightness light emissive pixels. This invention provides an all solid-state, full color, high resolution projection display suitable for displaying computer generated information and full motion HDTV.Type: GrantFiled: September 9, 1994Date of Patent: July 8, 1997Assignee: Deacon ResearchInventors: David A. G. Deacon, William K. Bischel, Michael J. Brinkman, Edward J. DeWath, Mark J. Dryer, Simon J. Field
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Patent number: 5615041Abstract: A poled dielectric structure, such as is useful as a frequency doubler, is fabricated by creating a uniform potential, such as a ground by means of an electrode surface, adjacent a first surface of a polable dielectric material, such as a piezo-electric or lithium niobate, and then applying an electric field adjacent a second surface of the polable dielectric material, where the electric field is spatially-modulated according to a three-dimensional modulation pattern with a field amplitude level at selected locations sufficient to cause atomic rearrangement within predefined regions in the polable material, and where the modulation amplitude level of the modulation pattern is controlled according to a modulation parameter. The control mechanism of modulation amplitude level may be protrusions of an electrically-conductive material extending toward the polable material or by modulated variations in the dielectric constant of a dielectric material separating the polable material from an electrode plate.Type: GrantFiled: July 31, 1995Date of Patent: March 25, 1997Assignee: Deacon ResearchInventors: Simon J. Field, David A. G. Deacon
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Patent number: 5602301Abstract: Described are preferred myocardial grafts of skeletal myoblasts or cardiomyocytes, and cellular compositions and methods useful in obtaining the grafts. The myocardial grafts are stable and can be used, for example, to deliver recombinant proteins directly to the heart.Type: GrantFiled: November 16, 1994Date of Patent: February 11, 1997Assignee: Indiana University FoundationInventor: Loren J. Field