Thermo-optic Patents (Class 359/288)
  • Patent number: 10437083
    Abstract: A mask array apparatus includes a monolithic structure that includes a substrate layer transmissive for at least a portion of an infrared wavelength band and an array of individually addressed pixel structures. Each pixel structure is in stacked relation above or below the substrate layer, and includes at least one micro-plate heating element layer, circuitry, and at least one phase change material (PCM) element. The heating element layer is transmissive for the wavelength band, and has switchable on and off states configured to produce temperature changes. The circuitry is configured to individually address the heating element layer, separately from heating element layers in other pixel structures, to switch the heating element layer between the on and off states. The PCM is in stacked relation above or below the heating element layer and configured to change transmissive states in the wavelength band in response to the temperature changes.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: October 8, 2019
    Assignees: Lockheed Martin Corporation, The Penn State Research Foundation
    Inventors: Clara Rivero Baleine, Theresa S. Mayer, Xiaoming Liu, Christina H. Drake
  • Patent number: 10436711
    Abstract: A biosensor device including a metal layer, a transparent substrate layer, and a dielectric layer, wherein the metal layer includes a plurality of sub-wavelength apertures, and wherein the dielectric layer is located between the metal layer and the transparent substrate layer to form a spectrally isolated and well-defined optical transmission resonance through the extraordinary optical transmission (EOT) phenomenon.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: October 8, 2019
    Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Hatice Yanik Altug, Arif Engin Cetin
  • Patent number: 10437130
    Abstract: A method and apparatus for creating an atmospheric electromagnetic radiation path modifying element (40) operative to simulate a physical optical device, the method comprising applying electromagnetic radiation to a selected plurality of three-dimensional portions (12—FIG. 3) of an atmospheric volume (10) so as to heat and/or ionize the air within said portions, wherein said selected portions are spatially located together in a substantially unbroken three-dimensional configuration.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: October 8, 2019
    Assignee: BAE Systems plc
    Inventors: Christopher Charles Rawlinson Jones, Nicholas Giacomo Robert Colosimo
  • Patent number: 10374105
    Abstract: An optoelectronic device includes an etched body comprising a buried metal contact layer on a top surface of a semiconductor structure, which comprises one or more semiconductor layers. The buried metal contact layer includes an arrangement of holes therein. A plurality of nanopillar structures protrude from the top surface of the semiconductor structure and pass through the arrangement of holes. Each nanopillar structure is surrounded at a base thereof by a portion of the buried metal contact layer. When the etched body is exposed to incident radiation having a wavelength in the range from about 300 nm to about 10 microns, at least about 50% of the incident radiation is transmitted through the etched body at a peak transmission wavelength ?max.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: August 6, 2019
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Xiuling Li, Daniel M. Wasserman, Xiang Zhao
  • Patent number: 10144275
    Abstract: Embodiments for environmental control of a vehicle by a processor. An environmental change in the vehicle is predictively anticipated by monitoring at least one environmental factor over time. In response to the predicted environmental change, a physical change is caused in a constituent portion of an assembly inclusive of an external surface of the vehicle, which when activated compensates for the predicted environmental change.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: December 4, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Cynthia H. Gaddis, Kelly Malone, Xinlin Wang
  • Patent number: 9776379
    Abstract: A thermochromic, near infrared (NIR) absorbing interlayer. The interlayer includes a NIR-absorbing substance dispersed or dissolved in a polymer matrix and a thermochromic material or system. The interlayer has an internal visible light transmission above 50% and an internal solar energy transmission below 55% when the interlayer is at 15° C. and an internal visible light transmission below 20% and an internal solar energy transmission below 20% when the interlayer is at 75° C. The internal haze of the interlayer is below 3.5%.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: October 3, 2017
    Assignee: PLEOTINT, L.L.C.
    Inventors: Christopher D. Anderson, Harlan J. Byker, Samuel J. DeJong, Curtis J. Liposcak
  • Patent number: 9746708
    Abstract: A liquid crystal display panel includes a first base substrate, a wire grid polarizer disposed on the first base substrate, a lyotropic chromonic liquid crystal polarizer disposed on the first base substrate, a second base substrate facing the first base substrate and a liquid crystal layer between the first base substrate and the second base substrate.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: August 29, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyeong-Ha Kim, Sang-Jae Kim, Hyoung-Joo Lee, Teck-Soo Kim, Min-Oh Choi, Seung-Beom Park
  • Patent number: 9696462
    Abstract: There is provided a metal-based particle assembly comprising 30 or more metal-based particles separated from each other and disposed in two dimensions, the metal-based particles having an average particle diameter in a range of from 200 to 1600 nm, an average height in a range of from 55 to 500 nm, and an aspect ratio, as defined by a ratio of the average particle diameter to the average height, in a range of from 1 to 8, wherein the metal-based particle assembly has in an absorption spectrum for a visible light region a maximum wavelength of a peak at a longest side in wavelength, and an absorbance at the maximum wavelength is higher as compared with that of a reference metal-based particle assembly, on the premise that the numbers of the metal-based particles are the same. The metal-based particle assembly of the present invention presents significantly intense plasmon resonance.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: July 4, 2017
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Tomohiro Fukuura
  • Patent number: 9690009
    Abstract: A photonic bandgap crystal or photonic bandgap crystal material comprising a self-assembled crystalline colloidal array (CCA) of monodisperse spherical particles having a face-centered-cubic (fcc) or a body-centered-cubic (bcc) lattice dispersed in a medium. The photonic bandgap crystal or photonic bandgap crystal material has a photonic bandgap for light in the visible and near-IR or a photonic bandgap for light in the visible range of wavelengths less than about 700 nm.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: June 27, 2017
    Assignee: University of Pittsburgh—Of The Commonwealth System of Higher Education
    Inventor: Sanford A. Asher
  • Patent number: 9693424
    Abstract: There is provided a metal-based particle assembly comprising 30 or more metal-based particles separated from each other and disposed in two dimensions, the metal-based particles having an average particle diameter of 200 to 1600 nm, an average height of 55 to 500 nm, and an aspect ratio of 1 to 8, wherein the metal-based particle assembly has in an absorption spectrum for a visible light region a maximum wavelength of a peak at a longest side in wavelength, and the maximum wavelength shifts toward a shorter side in wavelength in a range of from 30 to 500 nm as compared with that of a prescribed reference metal-based particle assembly. The metal-based particle assembly can have in an absorption spectrum a maximum wavelength of a peak at a longest side in wavelength, and the maximum wavelength is in a range of from 350 to 550 nm.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: June 27, 2017
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Tomohiro Fukuura
  • Patent number: 9638790
    Abstract: The invention relates to a system for calibrating a distance measuring device, comprising: a measuring track, on which the distance measuring device is mountable; an areal reflector mountable shiftably on the measuring track for reflecting a measurement signal transmitted from the distance measuring device back to the distance measuring device, so that by means of the distance measuring device a distance measurement for determining a distance (D) between the distance measuring device and the reflector is performable; and a laser distance measuring device mountable on the measuring track for registering tilt of the reflector; wherein means for orienting the distance measuring device are provided, so that measurement signals of the distance measuring device reflected back to the distance measuring device by means of the reflector are received with maximum intensity by the distance measuring device.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: May 2, 2017
    Assignee: Endress + Hauser GmbH + Co. KG
    Inventors: Bjorn Langendorf, Michael Sturm, Harald Faber
  • Patent number: 9585225
    Abstract: There is provided a metal-based particle assembly comprising 30 or more metal-based particles separated from each other and disposed in two dimensions, the metal-based particles having an average particle diameter of 200 to 1600 nm, an average height of 55 to 500 nm, and an aspect ratio of 1 to 8, wherein the metal-based particle assembly has in an absorption spectrum for a visible light region a maximum wavelength of a peak at a longest side in wavelength, and the maximum wavelength shifts toward a shorter side in wavelength in a range of from 30 to 500 nm as compared with that of a prescribed reference metal-based particle assembly. The metal-based particle assembly can have in an absorption spectrum a maximum wavelength of a peak at a longest side in wavelength, and the maximum wavelength is in a range of from 350 to 550 nm.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: February 28, 2017
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Tomohiro Fukuura
  • Patent number: 9554443
    Abstract: There is provided a metal-based particle assembly comprising 30 or more metal-based particles separated from each other and disposed in two dimensions, the metal-based particles having an average particle diameter of 200 to 1600 nm, an average height of 55 to 500 nm, and an aspect ratio of 1 to 8, wherein the metal-based particle assembly has in an absorption spectrum for a visible light region a maximum wavelength of a peak at a longest side in wavelength, and the maximum wavelength shifts toward a shorter side in wavelength in a range of from 30 to 500 nm as compared with that of a prescribed reference metal-based particle assembly. The metal-based particle assembly can have in an absorption spectrum a maximum wavelength of a peak at a longest side in wavelength, and the maximum wavelength is in a range of from 350 to 550 nm.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: January 24, 2017
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Tomohiro Fukuura
  • Patent number: 9551815
    Abstract: There is provided a metal-based particle assembly comprising 30 or more metal-based particles separated from each other and disposed in two dimensions, the metal-based particles having an average particle diameter in a range of from 200 to 1600 nm, an average height in a range of from 55 to 500 nm, and an aspect ratio, as defined by a ratio of the average particle diameter to the average height, in a range of from 1 to 8, wherein the metal-based particle assembly has in an absorption spectrum for a visible light region a maximum wavelength of a peak at a longest side in wavelength, and an absorbance at the maximum wavelength is higher as compared with that of a reference metal-based particle assembly, on the premise that the numbers of the metal-based particles are the same. The metal-based particle assembly of the present invention presents significantly intense plasmon resonance.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: January 24, 2017
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Tomohiro Fukuura
  • Patent number: 9465239
    Abstract: A combination of layers comprised of: 1) a first LETC layer; 2) a second LETC layer and 3) a separator layer between the two LETC layers 4) an additive within at least one of the LETC layers and the separator layer wherein when the layers are laminated between two sheets of clear glass the color coordinate values of the laminate are about ?8.5?a*?about 8.5 and about ?8.5?b*?about 8.5 throughout the temperature range of about 0° C. to about 85° C.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: October 11, 2016
    Assignee: PLEOTINT, L.L.C.
    Inventors: Christopher D. Anderson, Michael D. Broekhuis, Harlan J. Byker, Samuel J. DeJong
  • Patent number: 9416314
    Abstract: The present invention relates to an optical switch element, comprising a liquid-crystalline medium for the temperature-dependent regulation of radiant energy flow. The invention furthermore relates to the use of the optical switch element for the regulation of radiant energy flow between interior spaces and the environment and for the regulation of the temperature of interior spaces. The invention furthermore relates to a liquid-crystalline medium, characterized in that it comprises 5-95% of a compound of the formula (I), in particular for use in the optical switch elements according to the invention.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: August 16, 2016
    Assignee: Merck Patent GmbH
    Inventor: Michael Junge
  • Patent number: 9261715
    Abstract: A thermochromatic device in a thermochromatic display includes an insulating substrate, a color element, a heating element, a first electrode, and a second electrode, the color element and the heating element located on the insulating substrate being virtually integral but together are physically isolated and heat-insulated and allow such fast electrically-governed color changes that moving color images can be displayed.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: February 16, 2016
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Peng Liu, Duan-Liang Zhou, Shou-Shan Fan
  • Patent number: 9239474
    Abstract: A thermochromatic element includes a color element and at least one heating element configured to supply heat for the color element such that the color element changes color. The at least one heating element includes at least one carbon nanotube film. Each carbon nanotube film includes a number of carbon nanotube linear units and a number of carbon nanotube groups. Each carbon nanotube linear unit includes a number of carbon nanotubes substantially oriented along a first direction, and are spaced from each other and substantially extending along the first direction. The carbon nanotube groups are combined with the carbon nanotube linear units by van der Waals force. The carbon nanotube groups between adjacent carbon nanotube linear units are spaced from each other in the first direction.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: January 19, 2016
    Assignee: Beijing FUNATE Innovation Technology Co., LTD.
    Inventors: Chen Feng, Li Qian, Yu-Quan Wang
  • Patent number: 9228903
    Abstract: Devices, methods, and systems relating to infrared imager devices, methods for providing infrared imagers, methods of operating infrared imagers, and infrared imager systems are disclosed. An infrared imager system includes a number of lenses, a beam splitter, an imager array, and a thermo-optical array, wherein the beam splitter directs light to the imaging array and to the thermo-optical array.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: January 5, 2016
    Assignee: Honeywell International Inc.
    Inventors: Barrett E. Cole, Robert Higashi, Yue Liu, Teresa M. Marta
  • Patent number: 9223157
    Abstract: An optical limiter comprises a glass backing, a glass cover, and a layer of a phase changing material placed between said glass backing and said glass cover, the phase changing material comprising a transparent matrix having embedded particles of material that changes its optical properties due to temperature induced phase change of said material. The optical properties may change from transparent to reflective, from transparent to refractive or from transparent to scattering. The phase changing material is preferably at least one material selected from the group consisting of the elements Antimony, Bismuth, Cadmium, Lead, Tin and Indium and low-melting-point alloys of two or more of these elements. Two or more layers of phase changing materials may be used in a stack configuration, with each of the phase changing materials having a unique melting temperature.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: December 29, 2015
    Assignee: KiloLambda Technologies Ltd.
    Inventors: Ariela Donval, Yuval Ofir, Doron Nevo, Moshe Oron
  • Patent number: 9075253
    Abstract: A thermochromic window system includes at least one substrate and a thermochromic layer applied onto the at least one substrate. The thermochromic layer includes at least two thermochromic films and at least one non-thermochromic colored film positioned between the thermochromic films. The at least one substrate can be selected from glass, plastic, or mixtures thereof. The at least one non-thermochromic colored film can also include light absorbers.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: July 7, 2015
    Assignee: PPG Industries Ohio, Inc.
    Inventor: Michael Buchanan
  • Publication number: 20150109654
    Abstract: The invention provides flash imaging devices that include an optical change component that undergoes a change in response to an applied stimulus, a substrate and a stimulus element. Also provided are articles that include the subject devices, as well as methods of making and using the same.
    Type: Application
    Filed: November 14, 2014
    Publication date: April 23, 2015
    Inventor: Hans O. Ribi
  • Patent number: 9011734
    Abstract: Ligand exchange of thermochromic, LETC, systems exhibiting a reversible change in absorbance of electromagnetic radiation as the temperature of the system is reversibly changed are described. The described LETC systems include one or more than one transition metal ion, which experiences thermally induced changes in the nature of the complexation or coordination around the transition metal ion(s) and, thereby, the system changes its ability to absorb electromagnetic radiation as the temperature changes.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: April 21, 2015
    Assignee: Pleotint, L.L.C.
    Inventors: Harlan J. Byker, Paul H. Ogburn, Jr., Douglas A. Vander Griend, Brad S. Veldkamp, Derick D. Winkle
  • Publication number: 20150104199
    Abstract: The present application provides a tunable optical filter, including: a substrate, a tunable filter unit, a temperature control unit, and an enclosure, where: the substrate, the tunable filter unit, and the temperature control unit are placed inside the enclosure, where the enclosure includes a light incidence window and a light emergence window; the substrate is disposed adjacent to the light incidence window or the light emergence window, and configured to support the tunable filter unit; the temperature control unit is disposed on a surface of the tunable filter unit, and configured to adjust a channel wavelength of the tunable filter unit by means of temperature control; and optical paths of the light incidence window, the tunable filter unit and the light emergence window are aligned. The present application further provides an optical receive component, an optical transceiver component, and a multi-wavelength passive optical network system.
    Type: Application
    Filed: December 19, 2014
    Publication date: April 16, 2015
    Inventors: Fei Ye, Jianhe Gao, Xuejin Yan
  • Publication number: 20150097855
    Abstract: A system for facilitating a consumer's selection of customized color-changing lenses for eyewear, or windows, captures a digital color image of at least the face of the consumer and displays that color image to the consumer on a video display while superimposing a pair of lenses over the eyes. The display simulates the color of the superimposed lenses when made of a selected photochromic or thermochromic material. The color of the superimposed lenses is changeable, in response to consumer-controlled inputs, over a range between (a) an initial color for the lenses when subjected to at least one of (i) a first predetermined temperature and (ii) a first predetermined light condition, and (b) a final color for said lenses when subjected to at least one of (i) a second predetermined temperature higher than said first predetermined temperature and (ii) a second predetermined light condition brighter than said first predetermined light condition.
    Type: Application
    Filed: October 7, 2013
    Publication date: April 9, 2015
    Applicant: KILOLAMBDA TECHNOLOGIES LTD.
    Inventors: Ido Dotan, Noam Gross, Ariela Donval, Doron Nevo, Moshe Oron
  • Patent number: 8988758
    Abstract: A thermochromic window doped with a dopant and a method of manufacturing the same. The thermochromic window includes a substrate and a thermochromic thin film formed on the substrate. The thermochromic thin film has a thermochromic material doped with a dopant, the concentration of the dopant gradually decreasing in a depth direction from one surface of the upper surface and the undersurface of the thermochromic thin film. The thermochromic window has a high level of visible light transmittance and high phase change efficiency while having a low phase transition temperature.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: March 24, 2015
    Assignee: Samsung Corning Precision Materials Co., Ltd.
    Inventors: Yong Won Choi, Yung-Jin Jung, Dong Gun Moon, Jee Yun Cha
  • Publication number: 20150070746
    Abstract: The thermally switched reflective optical shutter is a self-regulating “switchable mirror” device that reflects up to 100% of incident radiant energy above a threshold temperature, and reflects up to 50% of incident radiant energy below a threshold temperature. Control over the flow of radiant energy occurs independently of the thermal conductivity or insulating value of the device, and may or may not preserve the image and color properties of incoming visible light. The device can be used as a construction material to efficiently regulate the internal temperature and illumination of buildings, vehicles, and other structures without the need for an external power supply or operator signals. The device has unique aesthetic optical properties that are not found in traditional windows, skylights, stained glass, light fixtures, glass blocks, bricks, or walls.
    Type: Application
    Filed: June 17, 2014
    Publication date: March 12, 2015
    Inventors: Richard M. Powers, Wil McCarthy
  • Publication number: 20150048062
    Abstract: Embodiments of the present invention generally relate to an optical valve that modifies a laser beam to allow more energy to be irradiated onto less absorbing areas on a substrate and less energy to be irradiated onto more absorbing areas on the substrate, thus creating a more uniform heating field. The optical valve is a layered structure comprising a reflective switch layer, an absorbing layer, a thermal resistor and a thermal bath.
    Type: Application
    Filed: August 13, 2014
    Publication date: February 19, 2015
    Inventor: Bruce E. ADAMS
  • Patent number: 8958139
    Abstract: The invention relates to a thermo-pneumatic actuator having a cavity defined by walls and being hermetically sealed, which is inflated with a working medium that alters the gas pressure thereof when a temperature change occurs. A wall region of the cavity is constructed as a ductile membrane, which can be deflected in at least two working positions located on both sides of a neutral position, in which the membrane is curved in opposite directions to one another. In order to alter the gas pressure in the cavity, and to adjust the membrane from one working position to the other working position, a tempering device is heat-conductively connected to the working medium. In the neutral position, the membrane is compressively loaded such that respectively, it maintains its position in both working positions if no outside force impacts the membrane.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: February 17, 2015
    Assignee: Albert-Ludwigs-Universität Freiburg
    Inventors: Peter Woias, Till Huesgen
  • Patent number: 8947760
    Abstract: A thermotropic optical shutter device incorporates coatable, thin-film polarizers with a thermotropic depolarizer. The coatable polarizers provide a mechanism for adjusting the polarizer properties (i.e., absorption, reflection, or diffusion) by changing the thickness of the coating. For example, a thicker film may have a higher relative polarizing efficiency while a thinner film may have a lower relative polarizing efficiency. Using the same base materials and manufacturing process, the contrast ratio and other properties of a thermotropic or thermochromic shutter device (e.g., a liquid crystal-based smart window film) may be adjusted in real time on the manufacturing line.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: February 3, 2015
    Assignee: Ravenbrick LLC
    Inventor: Wil McCarthy
  • Publication number: 20150029416
    Abstract: Embodiments of the invention provide a touch sensor, including a window substrate, and bezel layers formed along an outer circumference on the window substrate. The bezel layer includes a photochromic compound or a thermochromic compound expressing at least two colors.
    Type: Application
    Filed: June 9, 2014
    Publication date: January 29, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Tae Kyung LEE, Beom Seok OH, Ho Joo LEE, Deok Seok OH
  • Patent number: 8922868
    Abstract: The present invention relates to an optical window-filter including a thermochromic material and a light absorbing material. An absorption of light by the light absorbing material generates heat that causes phase transformation of the thermochromic material. The present invention further relates to a filter for an infrared imaging system having detectors sensitive to radiation in an infrared transmission spectrum. The filter includes a thermochromic material and a light-absorbing material. An absorption of high-power radiation in the infrared transmission spectrum by the light-absorbing material generates heat that causes phase transformation of the thermochromic material to attenuate the high-power radiation while transmitting substantially unaffected low-power radiation in the infrared transmission spectrum.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: December 30, 2014
    Assignee: KiloLambda Technologies Ltd.
    Inventors: Ariela Donval, Noam Gross, Eran Partouche, Doron Nevo, Moshe Oron
  • Patent number: 8908253
    Abstract: There is described a passive variable emittance device comprising: a substrate having a receiving surface adapted to reflect radiations having a given wavelength; an intermediary layer deposited on the receiving surface of the substrate and being substantially transparent to the radiations having the given wavelength; and a thermochromic layer deposited on top of the intermediary layer, the thermochromic layer being substantially transparent to the radiations having the given wavelength for a first temperature below a given transition temperature, and presenting both reflection and absorption for the radiations for a second temperature above the given transition temperature, a total optical thickness for the intermediary and thermochromic layers being substantially equal to one quarter of the given wavelength so that radiations reflected by the thermochromic layer at the second temperature destructively interfere with radiations transmitted by the thermochromic and intermediary layers and reflected by the sub
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: December 9, 2014
    Assignees: Institut National de la Recherche Scientifique (INRS), MPB Communications Inc.
    Inventors: Ali Hendaoui, Mohamed Chaker, Emile Haddad
  • Publication number: 20140333985
    Abstract: The present invention relates to a device for regulating the passage of energy through a light-transmitting area, comprising a first polarisation layer, a second polarisation layer and a switching layer which is arranged between the two polarisation layers and changes the polarisation properties of polarised light as a function of temperature, where the two polarisation layers are characterised by a suitable choice of their transmission in the transmission direction and their degree of polarisation. The invention furthermore relates to a process for the production of the device according to the invention and to the use of the device for influencing light transmission and/or the passage of energy into an interior as a function of temperature.
    Type: Application
    Filed: November 29, 2012
    Publication date: November 13, 2014
    Applicant: MERCK PATENT GMBH
    Inventors: Michael Junge, Andreas Beyer
  • Publication number: 20140333983
    Abstract: A multifunctional building component is capable of serving as one or more of a window, a wall, a shading device, a roofing element, a color panel, a display, an energy harvesting device, an energy storage device, and an energy distribution device.
    Type: Application
    Filed: April 14, 2014
    Publication date: November 13, 2014
    Inventors: Wil McCarthy, Richard M. Powers, Alex K. Burney
  • Publication number: 20140333984
    Abstract: A thermochromic window, the sunlight transmittance of which is adjustable depending on temperature, and a method of fabricating the same. The thermochromic window includes a substrate, a plurality of nanodots formed on the substrate, and a thermochromic thin film coating the substrate and the nanodots. The thermochromic thin film is made of a thermochromic material. The thickness of the thermochromic thin film disposed on the substrate is smaller than the thickness of the thermochromic thin film disposed on the nanodots.
    Type: Application
    Filed: May 13, 2014
    Publication date: November 13, 2014
    Applicant: SAMSUNG CORNING PRECISION MATERIALS CO., LTD.
    Inventors: Yongwon CHOI, Yung-Jin JUNG, Chang Gyu KIM, Hyun Bin KIM
  • Publication number: 20140333986
    Abstract: Methods for tuning a transmitter to a selected wavelength are disclosed. A transmitter including a laser array comprising a plurality of lasers spatially offset from one another and each having a laser output having a unique wavelength. A first prism is positioned to impart a first angular shift to the laser outputs to produce and a second prism is positioned to impart a second angular shift opposite the first angular shift on the outputs. An index modulating element is coupled to one of the first and second prisms and a controller is electrically coupled to the index modulating element to control an angle of light output form the second prism. An optical spectrum reshaper may be positioned between the second prism and the lens and have at least one transmission edge aligned with the wavelength at least one of the lasers.
    Type: Application
    Filed: July 28, 2014
    Publication date: November 13, 2014
    Inventor: Kevin J. McCallion
  • Publication number: 20140327952
    Abstract: A combination of layers comprised of: 1) a first LETC layer; 2) a second LETC layer and 3) a separator layer between the two LETC layers 4) an additive within at least one of the LETC layers and the separator layer wherein when the layers are laminated between two sheets of clear glass the color coordinate values of the laminate are about ?8.5?a*?about 8.5 and about ?8.5?b*?about 8.5 throughout the temperature range of about 0° C. to about 85° C.
    Type: Application
    Filed: April 29, 2014
    Publication date: November 6, 2014
    Applicant: PLEOTINT, L.L.C.
    Inventors: Christopher D. Anderson, Michael D. Broekhuis, Harlan J. Byker, Samuel J. DeJong
  • Publication number: 20140327953
    Abstract: A thermochromic window, the sunlight transmittance of which is adjustable depending on the temperature, and a method of fabricating the same. The thermochromic window includes a flexible substrate, a thermochromic thin film disposed on the flexible substrate, and a hot-processed substrate bonded to the thermochromic thin film.
    Type: Application
    Filed: May 1, 2014
    Publication date: November 6, 2014
    Applicant: SAMSUNG CORNING PRECISION MATERIALS CO., LTD.
    Inventors: Youngsoo Jung, Seulgi Bae, Hyun Bin Kim, Yung-Jin Jung, Yongwon Choi
  • Patent number: 8871334
    Abstract: An exterior surface covering has a colored outer layer that transmits infrared radiation and an inner layer with a thermochromic pigment that absorbs heat at low temperature and reflects at high temperatures. The outer layer conceals the color change of the thermochromic pigment.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: October 28, 2014
    Assignee: CertainTeed Corporation
    Inventors: Husnu M. Kalkanoglu, Ming Liang Shiao, Keith C. Hong, Gregory F. Jacobs
  • Publication number: 20140293393
    Abstract: A tunable PLC optical filter having sequentially connected thermally tunable Mach-Zehnder (MZ) interferometers is described. The cascade of MZ interferometers, each having a free spectral ranges matching ITU frequency grid spacing, are tuned so as to have a common passband centered on the frequency of the signal being selected, while having at least one of the stopbands centered on any other ITU frequency. Any other optical channel that may be present at any other ITU frequency is suppressed as a result. Another MZ interferometer in series with the cascade of interferometers including an asymmetric or variable coupler, is tuned to have low transmission at the center frequency of the selected optical channel.
    Type: Application
    Filed: March 28, 2013
    Publication date: October 2, 2014
    Inventors: Barthelemy FONDEUR, Jinxi SHEN, Leonid FRENKEL, Yimin HUA, David R. WALKER, Yu ZHANG, Vlatko MILINKOVIC
  • Publication number: 20140268291
    Abstract: A thermochromic window system includes at least one substrate and a thermochromic layer applied onto the at least one substrate. The thermochromic layer includes at least two thermochromic films and at least one non-thermochromic colored film positioned between the thermochromic films. The at least one substrate can be selected from glass, plastic, or mixtures thereof. The at least one non-thermochromic colored film can also include light absorbers.
    Type: Application
    Filed: March 11, 2014
    Publication date: September 18, 2014
    Applicant: PPG Industries Ohio, Inc.
    Inventor: Michael Buchanan
  • Patent number: 8823605
    Abstract: An incandescent light source display includes a container and a number of incandescent light sources. The incandescent light sources are located in the container. Each of the incandescent light sources includes a first electrode, a second electrode and an incandescent element. The second electrode is spaced from the first electrode. The incandescent element is electrically connected to the first electrode and the second electrode. The incandescent element includes a carbon nanotube structure.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: September 2, 2014
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Peng Liu, Liang Liu, Kai-Li Jiang, Shou-Shan Fan
  • Publication number: 20140233085
    Abstract: An optical limiter comprises a glass backing, a glass cover, and a layer of a phase changing material placed between said glass backing and said glass cover, the phase changing material comprising a transparent matrix having embedded particles of material that changes its optical properties due to temperature induced phase change of said material. The optical properties may change from transparent to reflective, from transparent to refractive or from transparent to scattering. The phase changing material is preferably at least one material selected from the group consisting of the elements Antimony, Bismuth, Cadmium, Lead, Tin and Indium and low-melting-point alloys of two or more of these elements. Two or more layers of phase changing materials may be used in a stack configuration, with each of the phase changing materials having a unique melting temperature.
    Type: Application
    Filed: September 12, 2012
    Publication date: August 21, 2014
    Applicant: KiloLambda Technologies Ltd.
    Inventors: Ariela Donval, Yuval Ofir, Doron Nevo, Moshe Oron
  • Patent number: 8801905
    Abstract: A thermochromic substrate and a method of manufacturing the same, in which the crystallinity of a thermochromic layer can be improved. The method includes the steps of forming a pre-thermochromic layer on a glass substrate by coating the glass substrate with pure vanadium, forming a seed layer by heat-treating the pre-thermochromic layer, and forming a thermochromic layer by coating the heat-treated seed layer with a vanadium dioxide (VO2) thin film.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: August 12, 2014
    Assignee: Samsung Corning Precision Materials Co., Ltd.
    Inventors: Yongwon Choi, Yung-Jin Jung, Donggun Moon, Jeeyun Cha
  • Publication number: 20140218650
    Abstract: A layer arrangement (1) which changes the transmission of incident light depending on its temperature, where the layer arrangement (1) has a first polarization layer (5a), a switching layer (2) which influences the polarization properties of light depending on the temperature, and a second polarization layer (5b), whereby both the first polarization layer (5a) and the second polarization layer (5b) are arranged to affect polarization both in the VIS region and in the NIR region.
    Type: Application
    Filed: July 13, 2012
    Publication date: August 7, 2014
    Applicant: MERCK PATENT GMBH
    Inventors: Michael Junge, Andreas Beyer
  • Publication number: 20140204450
    Abstract: A microfluidic panel including at least one substrate, one or more channels formed in the substrate, and fluid disposed within the one or more channels. The fluid is selected to store thermal energy and the microfluidic panel is adapted to convert the thermal energy into useable energy or condition the energy to adjust optical wavelength passband of the panel.
    Type: Application
    Filed: January 21, 2014
    Publication date: July 24, 2014
    Applicant: PHOTRONICS, INC.
    Inventor: Christopher J. Progler
  • Publication number: 20140204449
    Abstract: A thermally switched optical downconverting (TSOD) filter is a self-regulating device including a downconverter that converts incoming light at a variety of wavelengths into longer-wavelength radiation and then directs it using one or more bandblock filters in either the inward or outward direction, depending on the temperature of the device. This control over the flow of radiant energy occurs independently of the thermal conductivity or insulating properties of the device and may or may not preserve the image and color properties of incoming visible light. The TSOD filter is energy-efficient as it can be used to regulate the internal temperature and illumination of buildings, vehicles, and other structures without the need for an external power supply or operator signals. The TSOD filter has unique aesthetic and optical properties not found in traditional windows, skylights, stained glass, light fixtures, glass blocks, bricks, or walls.
    Type: Application
    Filed: November 25, 2013
    Publication date: July 24, 2014
    Applicant: RavenBrick LLC
    Inventors: Wil McCarthy, Richard M. Powers
  • Patent number: 8767783
    Abstract: A light source device is provided with a coherent light source for emitting the coherent light, and a pattern changer for changing an interference pattern of the coherent light on a surface of the illumination object. The pattern changer includes a photorefractive crystal which is arranged between the coherent light source and the illumination object and on an optical path of the coherent light and exhibits a photorefractive effect, and a changer for changing at least one of a light intensity distribution, a polarization direction, a wavelength and an intensity of coherent light incident on the photorefractive crystal. The illumination object is illuminated with the coherent light.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: July 1, 2014
    Assignee: Panasonic Corporation
    Inventors: Koichi Kusukame, Tetsuro Mizushima, Kazuhisa Yamamoto, Hiroyuki Furuya, Shinichi Kadowaki, Kiminori Mizuuchi
  • Publication number: 20140177029
    Abstract: A thermochromatic device in a thermochromatic display includes an insulating substrate, a color element, a heating element, a first electrode, and a second electrode, the color element and the heating element located on the insulating substrate being virtually integral but together are physically isolated and heat-insulated and allow such fast electrically-governed color changes that moving color images can be displayed.
    Type: Application
    Filed: July 22, 2013
    Publication date: June 26, 2014
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., TSINGHUA UNIVERSITY
    Inventors: PENG LIU, DUAN-LIANG ZHOU, SHOU-SHAN FAN