Multilayer Filter Or Multilayer Reflector Patents (Class 359/359)
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Patent number: 12189146Abstract: A five-layer thin film structure including a reflector, a high refractive index layer on or encapsulating the reflector, and a metallic iron absorber layer on or encapsulating the high refractive index layer. The reflector has a thickness from 10 nm to 5000 nm, the high refractive index layer has a thickness from 5 nm to 500 nm; and the metallic iron absorber layer has a thickness from greater than 0 nm to 50 nm.Type: GrantFiled: January 29, 2021Date of Patent: January 7, 2025Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki KaishaInventors: Debasish Banerjee, Songtao Wu, Hidetaka Asano
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Patent number: 12181697Abstract: An optical filter, includes: a substrate, a dielectric multilayer film 1 laid on or above one major surface of the substrate, and a dielectric multilayer film 2 laid on or above the other major surface of the substrate, in which the substrate includes a near infrared ray absorbing glass and a resin film, the resin film includes a resin and a pigment (NIR1), and the optical filter satisfies all of spectral characteristics (i-1) to (i-3), (i-6) to (i-8), and (i-10) to (i-13).Type: GrantFiled: December 27, 2023Date of Patent: December 31, 2024Assignee: AGC Inc.Inventors: Kazuhiko Shiono, Takashi Nagata
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Patent number: 12181698Abstract: An optical filter that includes a substrate and a first set of films disposed on a first surface of the substrate, wherein the first set of films includes a high refractive index film layer, a low refractive index film layer, and a matching film layer. A material of the matching film layer includes a nitrogen-doped silicon germanium mixture having a chemical formula SixGe1-xNy, where 0?x?1, and 0<y?0.1. In a wavelength range of 780 nm to 3000 nm, a refractive index of the high refractive index film layer is greater than a refractive index of the low refractive index film layer, and a refractive index of the matching film layer is not equal to a refractive index of its adjacent film layer.Type: GrantFiled: November 2, 2021Date of Patent: December 31, 2024Assignee: Xin Yang Sunny Optics Co., Ltd.Inventors: Ce Chen, Weihong Ding, Yeqing Fang, Wei Yang, Niangong Xiao
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Patent number: 12174374Abstract: A projection assembly for a head-up display (HUD), includes a windshield, including outer and inner panes that are joined to one another via a thermoplastic intermediate layer and having an HUD region; and a projector aimed at the HUD region. The radiation of the projector is predominantly p-polarised, and the windshield is provided with a reflection coating that is suitable for reflecting p-polarised radiation. The reflection coating has exactly one electrically conductive layer based on silver, a lower dielectric layer or layer sequence whose refractive index is at least 1.9 is arranged beneath the electrically conductive layer, an upper dielectric layer or layer sequence whose refractive index is at least 1.9 is arranged above the electrically conductive layer, the ratio of the optical thickness of the upper dielectric layer or layer sequence to the optical thickness of the lower dielectric layer or layer sequence is at least 1.7.Type: GrantFiled: November 3, 2020Date of Patent: December 24, 2024Assignee: SAINT-GOBAIN GLASS FRANCEInventors: Jan Hagen, Klaus Fischer, Norbert Huhn
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Patent number: 12165889Abstract: An optical heating device for heating a substrate includes: a chamber for accommodating the substrate; a support member for supporting the substrate in the chamber; a flash lamp disposed to face a first main surface of the substrate supported by the support member; a plurality of LED elements for emitting light from outside a flash light irradiation space that is sandwiched between the substrate supported by the support member and the flash lamp, the light traveling toward the first main surface of the substrate or a second main surface of the substrate that is the opposite side of the first main surface; and a light blocking member disposed between the flash lamp and a plurality of the LED elements in a separating direction, and outside the flash light irradiation space, for blocking the light emitted from the flash lamp and traveling toward a plurality of the LED elements.Type: GrantFiled: June 29, 2021Date of Patent: December 10, 2024Assignee: Ushio Denki Kabushiki KaishaInventors: Yoshiaki Nakamura, Tetsuya Kitagawa, Takafumi Mizojiri
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Patent number: 12151966Abstract: Provided is a film-covered transparent base plate having an excellent aesthetic appearance even during turn-off of a light source. A film-covered transparent base plate 1 includes a transparent base plate 2 and a light-absorbing film 3 provided on one principal surface 2a of the transparent base plate 2 and the light-absorbing film 3 includes a dielectric phase made of a material having a band gap of not less than 2.0 eV and not more than 2.7 eV and a metallic phase.Type: GrantFiled: June 29, 2020Date of Patent: November 26, 2024Assignees: NIPPON ELECTRIC GLASS CO., LTD., TOHOKU UNIVERSITYInventors: Yusuke Yamazaki, Masaaki Imura, Hitoshi Takamura, Akihiro Ishii, Mina Yamaguchi
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Patent number: 12153235Abstract: An Anderson localized hyperspectral filter array is disclosed which includes a base layer and a plurality of optical layers deposited on the base layer selected from two or more materials, each material having a refractive index that is different from the other materials of the two or more materials, wherein no consecutively deposited optical layers have the same refractive index, each of the plurality of optical layers having a thickness chosen based on a random number within a predetermined range.Type: GrantFiled: November 3, 2021Date of Patent: November 26, 2024Assignee: Purdue Research FoundationInventors: Young L Kim, Yunsang Kwak, Jungwoo Leem
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Patent number: 12147009Abstract: A substrate for a display article includes (a) a primary surface; and (b) a textured region on at least a portion of the primary surface, the textured region comprising: (i) one or more higher surfaces residing at a higher mean elevation parallel to a base-plane disposed below the textured region and extending through the substrate; (ii) one or more lower surfaces residing at a lower mean elevation parallel to the base-plane that is less than the higher mean elevation; and (iii) a high-index material disposed on each of the one or more lower surfaces residing at the lower mean elevation, the high-index material forming one or more intermediate surfaces residing at an intermediate mean elevation parallel to the base-plane that is greater than the lower mean elevation but less than the higher mean elevation, the high-index material comprising an index of refraction that is greater than the index of refraction of the substrate.Type: GrantFiled: July 7, 2021Date of Patent: November 19, 2024Assignee: Corning IncorporatedInventors: Shandon Dee Hart, Karl William Koch, III, Wageesha Senaratne, William Allen Wood
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Patent number: 12146213Abstract: A method for regulating color of a hard coating, including the following steps: providing an amorphous alloy layer; forming an amorphous metal oxide layer on a surface of the amorphous alloy layer to stack the amorphous metal oxide layer on the amorphous alloy layer, so that the amorphous metal oxide layer and the amorphous alloy layer together form the hard coating, wherein a band gap of the amorphous metal oxide layer is in a range from 2 eV to 5 eV, and the color of the hard coating is capable of varying within the visible light spectrum depending on thickness of the amorphous metal oxide layer; and controlling the thickness of the amorphous metal oxide layer in the formation of the amorphous metal oxide layer to obtain the amorphous metal oxide layer of a predetermined color. A hard coating and a method for preparing the same are also provided.Type: GrantFiled: April 5, 2021Date of Patent: November 19, 2024Assignee: TSINGHUA UNIVERSITYInventors: Na Chen, Ying-Qi Zhang, Kai-Ming Zheng
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Patent number: 12116309Abstract: The present invention relates to a toughenable coated float glass substrate, a method of preparing same and the use thereof, said float glass substrate comprising a first surface and a second surface, wherein the first surface comprises one or more layers applied by chemical vapour deposition (CVD) and the second surface comprises one or more layers applied by physical vapour deposition (PVD); and wherein said one or more layers applied by physical vapour deposition (PVD) includes at least one functional metal layer; and wherein the second surface further comprises a protective layer applied in direct contact with the second surface; and wherein the coated float glass substrate exhibits a transmission b* colour value according to the CIE colour space of less than or equal to 3 and an external reflection b* of less than or equal to ?5.Type: GrantFiled: July 31, 2020Date of Patent: October 15, 2024Assignee: Pilkington Group LimitedInventor: John William Oldfield
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Patent number: 12104958Abstract: Devices and methods of the present technology utilize wavelength-dependent transmittance of 2D materials to identify the wavelength of an electromagnetic radiation. A wide range of 2D materials can be used, making possible the use of the technology over a large portion of the electromagnetic spectrum, from gamma rays to the far infrared. When combined with appropriate algorithms and artificial intelligence, the technology can identify the wavelength of one or more monochromatic sources, or can identify color through the use of a training set. When applied in an array format, the technology can provide color imaging or spectral imaging using different regions of the electromagnetic spectrum.Type: GrantFiled: November 16, 2020Date of Patent: October 1, 2024Assignee: Northeastern UniversityInventors: Swastik Kar, Davoud Hejazi, Sarah Ostadabbas
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Patent number: 12099274Abstract: The present application relates to a backlight module and a display device. The backlight module includes a light source, a light guide plate, and a diffusion film; the light guide plate includes a light guide incident surface facing the light source and a light guide emergent surface facing a light emitting direction, a peripheral edge of the light guide emergent surface is a refractive surface, and a distance from an outer edge of the refractive surface to the light guide incident surface is longer than a distance from an inner edge of the refractive surface to the light guide incident surface; and the diffusion film includes a diffusion incident surface and a diffusion emergent surface, and a shape of the diffusion incident surface is fitted to a shape of the light guide emergent surface. The direction and strength distribution of an emitting light path can be changed, and light leakage caused by ray overflow from a backplane due to ray concentration on the edge can be reduced.Type: GrantFiled: November 25, 2023Date of Patent: September 24, 2024Assignee: HKC CORPORATION LIMITEDInventors: Hao Liu, Baohong Kang
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Patent number: 12092848Abstract: A layered sheet polarizer including a multilayered structure having multiple transparent, low-absorption layers, the transparent, low-absorption layers including first layers having a relatively high index of refraction and second layers having a relatively low index of refraction, the first and second layers being arranged in an alternating manner within the structure so as to form resonator structures, and a dichroic layer positioned within the multilayered structure.Type: GrantFiled: October 22, 2019Date of Patent: September 17, 2024Assignee: Board of Regents, The University of Texas SystemInventors: Ilya M. Vitebskiy, Andrey Chabanov, Igor Anisimov, Nicholaos Limberopoulos, Carl Pfeiffer
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Patent number: 12078829Abstract: An optical filter, a sensor device including the optical filter, and a method of fabricating the optical filter are provided. The optical filter includes one or more dielectric layers and one or more metal layers stacked in alternation. The metal layers are intrinsically protected by the dielectric layers. In particular, the metal layers have tapered edges that are protectively covered by one or more of the dielectric layers.Type: GrantFiled: July 10, 2023Date of Patent: September 3, 2024Assignee: VIAVI Solutions Inc.Inventors: Georg J. Ockenfuss, Tim Gustafson, Jeffrey James Kuna, Markus Bilger, Richard A. Bradley, Jr.
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Patent number: 12059884Abstract: Provided is an organic EL display device including an optical laminate, and a foldable device formed of the organic EL display device. The optical laminate includes a glass plate, a first pressure-sensitive adhesive layer, a polarizer layer, a second pressure-sensitive adhesive layer, and an optically anisotropic layer in this order, in which the glass plate has a thickness of less than 100 ?m, the polarizing layer is formed of a composition for forming a polarizing layer which contains a liquid crystal compound and an organic dichroic material, a distance A between the first pressure-sensitive adhesive layer and the polarizer layer is 10 ?m or less, and a distance B between the polarizer layer and the second pressure-sensitive adhesive layer is 10 ?m or less.Type: GrantFiled: March 23, 2022Date of Patent: August 13, 2024Assignee: FUJIFILM CorporationInventors: Naoya Nishimura, Naoya Shibata
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Patent number: 12061313Abstract: A system and method for diamond based multilayer antireflective coating for optical windows are provided. An antireflective coatings for optical windows may include an optical grade silicon substrate, a first polycrystalline diamond film on the silicon substrate, a germanium film on the first polycrystalline diamond film, a fused silica film on the germanium film; and a second polycrystalline diamond film on the fused silica film. A method of fabricating a diamond based multilayer antireflective coating may include the steps of cleaning and seeding an optical substrate, forming a first diamond layer on the optical substrate, forming a germanium layer on the first diamond layer, forming a fused silica layer on the germanium layer, cleaning and seeding the germanium layer, and forming a second diamond layer on the germanium layer.Type: GrantFiled: May 2, 2023Date of Patent: August 13, 2024Assignee: AKHAN SEMICONDUCTOR, INC.Inventors: Adam Khan, Robert Polak
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Patent number: 12055739Abstract: An optical filter having a passband at least partially overlapping with a wavelength range of 800 nm to 1100 nm is provided. The optical filter includes a filter stack formed of hydrogenated silicon layers and lower-refractive index layers stacked in alternation. The hydrogenated silicon layers each have a refractive index of greater than 3 over the wavelength range of 800 mn to 1100 nm and an extinction coefficient of less than 0.0005 over the wavelength range of 800 nm to 1100 nm.Type: GrantFiled: September 3, 2021Date of Patent: August 6, 2024Assignee: VIAVI Solutions Inc.Inventors: Karen Denise Hendrix, Richard A. Bradley, Jr., Marius Grigonis, Georg J. Ockenfuss
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Patent number: 12055478Abstract: A method and apparatus for cleaning vacuum ultraviolet (VUV) optics (e.g., one or more mirrors of a VUV) of a substrate inspection system is disclosed. The cleaning system ionizes or disassociates hydrogen gas in a VUV optics environment to generate hydrogen radicals (e.g., H*) or ions (e.g., H+, H2+, H3+, which remove water or hydrocarbons from the surface of the one or more mirrors. The one or more VUV mirrors may include a reflective material, such as aluminum. The one or more VUV mirrors may have a protective coating to protect the reflective material from any detrimental reaction to the hydrogen radicals or ions. The protective coating may include a noble metal.Type: GrantFiled: December 28, 2021Date of Patent: August 6, 2024Assignee: ASML NETHERLANDS B.V.Inventors: Andrey Nikipelov, Saeedeh Farokhipoor, Maarten Van Kampen
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Patent number: 12050303Abstract: The present disclosure provides systems and methods for improved occupancy sensing. The methods and systems can deploy various signal threshold adjustments and/or signal analysis algorithms in response to sensed signals having a given quality, such as exceeding a threshold. In some cases, signal thresholds are lowered following an initial generated signal exceeding a first, higher threshold. In some cases, time-dependent signals are monitored using algorithms that analyze the signals for variations that are characteristic of human usage. Methods are disclosed for determining if two motion sensors are observing the same or overlapping spaces. Systems and methods for calibrating motion sensing systems are also disclosed.Type: GrantFiled: September 14, 2021Date of Patent: July 30, 2024Assignee: STEELCASE INC.Inventors: Michael Bloem, Marcus Ward, Mychal Hall
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Patent number: 12034101Abstract: Provided are a semiconductor wafer, a semiconductor device, and a gas concentration measuring device having a size reduced by reducing warpage to be even smaller than the sizes that can be achieved by conventional techniques. The semiconductor wafer includes: a wafer substrate, a semiconductor stacked portion formed on a first surface of the wafer substrate, the semiconductor stacked portion being capable of emitting or receiving infrared light of 2 ?m to 10 ?m; and an optical filter formed on a second surface of the wafer substrate that is opposite to the first surface of the wafer substrate. The thickness Twaf [?m] of the wafer substrate and the thickness Topt [?m] of the optical filter satisfy the relations of Topt?4 and Topt?0.000053×Twaf2.0488.Type: GrantFiled: March 11, 2021Date of Patent: July 9, 2024Assignee: Asahi Kasei Microdevices CorporationInventor: Kengo Sasayama
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Patent number: 12032187Abstract: Provided are: a band-pass filter for which filter characteristics can be improved; and a manufacturing method therefor. A band-pass filter 11, which allows light of a specific wavelength region to pass, includes: a substrate 12 which has light transmitting properties; a first dielectric multilayer film 13 that is provided on a first main surface S1 of the substrate 12; and a second dielectric multilayer film 14 that is provided on a second main surface S2 which is opposite the first main surface S1. The first dielectric multilayer film 13 contains a hydrogenated silicon layer. The second dielectric multilayer film 14 contains a hydrogenated silicon layer.Type: GrantFiled: October 24, 2019Date of Patent: July 9, 2024Assignee: Nippon Electric Glass Co., Ltd.Inventors: Keiichi Sahara, Masaaki Imura, Tsutomu Imamura, Yasutaka Tanabe
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Patent number: 12032230Abstract: This invention relates to an optical filter for use in eyewear such as ski googles, as well as eyewear using the filter. For improving visibility in snow dominated locations, the filter has a transmission spectrum having a first transmission peak in the wavelength range of 620 nm-670, with a maximum at approximately 650 nm.Type: GrantFiled: December 12, 2019Date of Patent: July 9, 2024Assignee: Active Brands ASInventor: Ståle Norman Møller
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Patent number: 12027325Abstract: A transparent photovoltaic cell is provided. The transparent photovoltaic cell includes a first visibly transparent electrode, a visibly transparent active layer including a light absorbing material that has a bandgap greater than or equal to about 2.75 eV, and a second visibly transparent electrode. The active layer is disposed between the first transparent electrode and the second transparent electrode. The transparent photovoltaic cell is visibly transparent.Type: GrantFiled: January 9, 2019Date of Patent: July 2, 2024Assignee: Board of Trustees of Michigan State UniversityInventors: Richard R. Lunt, Dianyi Liu
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Patent number: 12025771Abstract: Beam steering devices include a laser and a metasurface for dynamic beam shaping of laser light. A steering actuator may adjust a metasurface with respect to a laser to dynamically shape the beam. Lasers in a plurality of lasers may be selectively activated to generate a desired beam shape.Type: GrantFiled: March 30, 2021Date of Patent: July 2, 2024Assignee: Meta Platforms Technologies, LLCInventors: Liliana Ruiz Diaz, Maik Andre Scheller, Hao Yang
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Patent number: 12017951Abstract: The present invention relates to a coated glass substrate, a method of preparing same and the use thereof in a multiple glazing unit, the coated comprising at least the following layers in sequence from the glass substrate: a lower anti-reflection layer; a silver-based functional layer; a barrier layer; and an upper anti-reflection layer, wherein the upper anti-reflection layer comprises a dielectric layer of an oxynitride of aluminium (Al), zinc (Zn) and tin (Sn) with at least 5 atomic percent aluminium (Al).Type: GrantFiled: November 13, 2020Date of Patent: June 25, 2024Assignee: Pilkington Group LimitedInventors: Charlie James Patrickson, Rachel Yeates, Philip Savage
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Patent number: 12018359Abstract: Purpose of the present invention is to provide a composite tungsten oxide film having a transmissivity of light with a wavelength of 700 to 1200 nm, in addition to a function to shield light by absorbing light, a function to generate heat by absorbing light and a function to release electrons by absorbing light, and also having a substantial radio wave transmissivity, and having both of an infrared light absorbing property in an infrared light region and a transparency in a visible light region, and a method for manufacturing the composite tungsten oxide film, and further, to provide a film-deposited base material or an article using any of or a plurality of the above functions. A composite tungsten oxide film comprising a composition represented by a general formula MxWyOz (wherein, an element M is one or more elements selected from alkaline metal, alkaline earth metal, Fe, In, Tl, and Sn, an element W is tungsten, and an element O is oxygen) as main components, wherein 0.001?x/y?1, 2.2?z/y?3.Type: GrantFiled: April 17, 2019Date of Patent: June 25, 2024Assignee: SUMITOMO METAL MINING CO., LTD.Inventors: Keiichi Sato, Isao Ando
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Patent number: 12011561Abstract: A device and method for selectively applying a composition to a treatment surface (e.g., skin) to alter an aesthetic appearance of the skin in the undereye region of the face. The device includes an applicator applying the composition to the skin, and a detector obtaining image data corresponding to an image of an area of skin. The device generates a target reflectance value based on the image data and past image data. The target reflectance value is higher than reflectance of at least half of areas corresponding to the image data and past image data. The device determines a desired level of reflectance modification for a location within the area of skin imaged by comparing image data corresponding to reflectance of the location to the target reflectance value, and directs the applicator to selectively apply the composition to the location based on the desired level of reflectance modification.Type: GrantFiled: July 30, 2021Date of Patent: June 18, 2024Assignee: JOHNSON & JOHNSON CONSUMER INC.Inventors: Albert Durr Edgar, Laura Higgins
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Patent number: 12001036Abstract: Multilayer optical film comprising at least a plurality of alternating first and second optical layers. Embodiments of the multilayer optical film are useful, for example, in UV-C shield, UV-C light collimator, and UV-C light concentrator applications.Type: GrantFiled: September 25, 2019Date of Patent: June 4, 2024Assignee: 3M Innovative Properties CompanyInventors: Timothy J. Hebrink, Stephen P. Maki, Charles D. Hoyle, Joel D. Oxman, Matthew T. Scholz, Justin M. Mazzoni, Michael E. Griffin, Anna C. Hamlin
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Patent number: 11994699Abstract: An optical member includes a transparent substrate containing at least one substance selected from glass, a glass ceramic, silicon, and sapphire, and having an infrared high-transmittance region in which an optical transmittance is 78% or more in a wavelength band of 700 nm to 1800 nm; and an optical interference film disposed on a main surface of the transparent substrate corresponding to the infrared high-transmittance region, wherein a transmittance of light, of the optical member, of at least one wavelength ?3 in the wavelength band of 700 nm to 1800 nm in a region of the optical member corresponding to the infrared high-transmittance region of the transparent substrate has a minimum value of 86.5% or more and has a difference between the minimum value and a maximum value of 9% or less in a range where an incidence angle is from 0 degrees to 60 degrees.Type: GrantFiled: January 11, 2021Date of Patent: May 28, 2024Assignee: AGC Inc.Inventors: Hiroyuki Yamamoto, Takahiro Mashimo, Takuji Oyama, Shinya Tahara, Tatsuo Nagashima
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Patent number: 11987125Abstract: A vehicle pane for a head-up display having an outer face that faces external surroundings in the installed state and an inner face that faces a vehicle interior, includes at least one transparent pane; at least one masking strip in an edge region of the pane, and at least one reflection layer for reflecting light which is applied by printing, which is arranged in the region of the masking strip, on the vehicle-interior side of the masking strip.Type: GrantFiled: October 4, 2021Date of Patent: May 21, 2024Assignee: SAINT-GOBAIN GLASS FRANCEInventor: Valentin Schulz
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Patent number: 11977207Abstract: Fully artificial, adaptive composite materials and systems, having variable transmittance, reflectance, and/or absorptance to radiation in visible, infrared, or other desired region of the electromagnetic spectrum, and methods of the manufacture and use thereof are provided. The adaptive composite materials and systems possess an unprecedented combination of properties and are, therefore, poised to enable a broad range of practical applications. The adaptive composite material incorporates at least one size-variable active area having a variable transmittance, reflectance, and/or absorptance in at least a portion of the electromagnetic spectrum and comprises at least: an elastomer substrate, a texturizing layer disposed on top of the substrate, and an optional reflective coating disposed on top of the texturizing layer. In operation, the stretching and relaxation of the elastomer substrate causes changes in the surface morphology of the texturized layers (e.g.Type: GrantFiled: March 15, 2019Date of Patent: May 7, 2024Assignee: The Regents of the University of CaliforniaInventors: Alon A. Gorodetsky, Chengyi Xu, George Stiubianu
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Patent number: 11971565Abstract: An absorption type near-infrared filter comprising a first multilayer film, a second multilayer film, and an absorption film, wherein in the ultraviolet band, the difference of between the wavelength with the transmittance at 80% of the absorbing film and the wavelength with the reflectivity at 80% of the first multilayer film falls in the range between 25 nm and 37 nm, the difference of between the wavelength with the transmittance at 50% of the absorbing film and the wavelength with the reflectivity at 50% of the first multilayer film falls in the range between 6 nm and 14 nm, and the difference of between the wavelength with the transmittance at 20% of the absorbing film and the wavelength with the reflectivity at 20% of the first multilayer film falls in the range between ?6 nm and 2.5 nm.Type: GrantFiled: May 26, 2022Date of Patent: April 30, 2024Assignees: PTOT (SUZHOU) INC., PLATINUM OPTICS TECHNOLOGY INC.Inventors: Chung-Han Lu, Hsiao-Ching Shen, Chun-Cheng Hsieh, Ming-Zhan Wang
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Patent number: 11959164Abstract: This invention provides a process or fabrication method of forming broadband anti-reflective (AR) coating over the mid-IR fluoride fiber for high power laser applications in mid-IR wavelength range. The AR coating consists of multiple-pair Lithium fluoride (LiF) and Al2O3, and was deposited by electron beam physical vapor deposition with an iron assistant source at low temperature (<60° C.). A thin encapsulation layer of Al2O3 was applied over the AR coating by atomic layer deposition technology. The measurements show the coating has a reflectivity of <1-1.5% in the range of 1.5-5.5 ?m. The laser induced damage threshold (LIDT) test shows the damage threshold is greater than 8.9 MW/cm2 with no sign of any damage on the coating exposed to atmosphere. The durability and environmental tests of the AR coating with PVD coated encapsulation layer show good humidity resistance in open air and no degradation of film quality and optical performance are observed.Type: GrantFiled: March 10, 2022Date of Patent: April 16, 2024Inventors: Yimin Hu, Feng Niu, Wei Lu
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Patent number: 11962118Abstract: A multilayer mirror comprises a reflector section including a plurality of alternating layers of a high index material and a low index material, and a filter section over the reflector section. The filter section comprises a first filter layer including a low index material on a layer of high index material of the reflector section; a second filter layer on the first filter layer, the second filter layer comprising a high index material that is different than the high index material in the reflector section; and a third filter layer on the second filter layer, the third filter layer comprising a low index material. Each filter layer has an optical thickness greater than or equal to the optical thickness of each layer of the alternating layers. The filter section substantially blocks ultraviolet (UV) energy, thereby preventing UV energy from substantially impinging on the high index material of the reflector section.Type: GrantFiled: October 27, 2020Date of Patent: April 16, 2024Assignee: Honeywell International Inc.Inventors: Randy Ramberg, Lance Vrieze, Steven C. Albers, Dean Eivind Johnson
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Patent number: 11953653Abstract: An anti-reflective waveguide assembly comprising a waveguide substrate having a first index of refraction, a plurality of diffractive optical elements disposed upon a first surface of the waveguide and an anti-reflective coating disposed upon a second surface of the waveguide. The anti-reflective coating preferably increases absorption of light through a surface to which it is applied into the waveguide so that at least 97 percent of the light is transmitted. The anti-reflective coating is composed of four layers of material having different indices of refraction that the first index of refraction and an imaginary refractive index less than 1×10?3 but preferably less than 5×10?4.Type: GrantFiled: February 7, 2022Date of Patent: April 9, 2024Assignee: Magic Leap, Inc.Inventors: Christophe Peroz, Kevin Messer
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Patent number: 11952476Abstract: Provided is a thermoplastic resin film with which a glass plate-including laminate that looks different in color tone depending on the direction or angle can be obtained. A thermoplastic resin film according to the present invention includes a thermoplastic resin and a pigment, and when the thermoplastic resin film is planarly viewed with a transmission electron microscope, a number of pigments having an aspect ratio of 3 or more and 50 or less is 3 or more and 100 or less in a rectangular region of 13 ?m long and 18 ?m wide.Type: GrantFiled: October 19, 2022Date of Patent: April 9, 2024Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Shougo Yoshida, Atsushi Nohara
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Patent number: 11953652Abstract: Disclosed is an article that includes an antiglare surface. When measuring surface shapes of six adjacent areas obtained by dividing the antiglare surface into dimensions of 103 ?m×118 ?m, the antiglare surface includes a surface shape such that an average value of an arithmetic mean height Sa of the six areas is 20 nm or greater and a variation coefficient CV1, which is obtained from the average value and a standard deviation of the arithmetic mean height Sa of the six areas, is 0.020 or greater.Type: GrantFiled: April 2, 2019Date of Patent: April 9, 2024Assignee: Nippon Electric Glass Co., Ltd.Inventor: Toshiyuki Kajioka
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Patent number: 11947138Abstract: Broadband visible reflectors are disclosed. In particular, broadband visible reflectors with reduced on-axis blue reflectivity are described. Broadband visible reflectors that appear yellow in reflection are described. Such broadband visible reflectors may be used in backlights and displays.Type: GrantFiled: April 20, 2021Date of Patent: April 2, 2024Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Edward J. Kivel, Ryan T. Fabick, Timothy J. Nevitt
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Patent number: 11935980Abstract: A filtering panel includes a molding layer part; a pattern layer part having an incident surface through which light emitted from a light source and viewing light transmitted to an observer enter, and an accommodation surface which is the reverse surface of the incident surface, wherein the molding layer part is stacked on the incident surface so as to be adjacent thereto, and the pattern layer part adjusts the optical paths of the emitted light and the viewing light; and a filtering layer part formed on a lower incident surface of the pattern layer part having the incident surface of the viewing light that enters from a lower region below a horizontal reference line, wherein the reflectivity of the visible light in the viewing light incident on the lower region is made greater than that of an upper region above the reference line by means of mirror reflection.Type: GrantFiled: November 27, 2019Date of Patent: March 19, 2024Assignees: POSCO CO., LTD, RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGYInventors: Sung-Ju Tark, Kun-Hoon Baek, Jun-Hong Kim, Youn-Joung Choi, Ji-Sang Park
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Patent number: 11913833Abstract: An optical device may comprise an array of sensor elements and an array of optical channels disposed on the array of sensor elements. At least one optical channel of the array of optical channels may be configured to pass bandpass filtered light to at least one sensor element of the array of sensor elements. At least one other optical channel of the array of optical channels may be configured to pass non-bandpass filtered light to at least one other sensor element of the array of sensor elements.Type: GrantFiled: June 17, 2022Date of Patent: February 27, 2024Assignee: VIAVI Solutions Inc.Inventors: Valton Smith, William D. Houck
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Patent number: 11906700Abstract: A substrate is provided with an abrasion resistance antireflection coating. The coated substrate includes a multilayer antireflection coating on at least one side. The coating has layers with different refractive indices, wherein higher refractive index layers alternate with lower refractive index layers. The layers having a lower refractive index are formed of silicon oxide with a proportion of aluminum, with a ratio of the amounts of aluminum to silicon is greater than 0.05, preferably greater than 0.08, but with the amount of silicon predominant relative to the amount of aluminum. The layers having a higher refractive index include a silicide, an oxide, or a nitride.Type: GrantFiled: May 18, 2021Date of Patent: February 20, 2024Assignee: SCHOTT AGInventors: Christian Henn, Thorsten Damm
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Patent number: 11891328Abstract: A method of tinting or coloring glass. The following layers are deposited onto the glass: a first dielectric layer, a subcritical metallic layer; a primer layer; and a second dielectric layer. Alternatively, these layers may be deposited onto the glass: a first dielectric layer, a subcritical metallic layer; and a second dielectric layer. Alternatively, the invention is a coated article that includes a substrate, a first dielectric layer, an absorbing layer, and a second dielectric layer over the primer layer. The absorbing layer can be Inconel, titanium nitride, cobalt chrome (stellite), or nickel chrome material, and has a thickness in the range of 50 ? to 150 ?.Type: GrantFiled: June 23, 2022Date of Patent: February 6, 2024Assignee: Vitro Flat Glass LLCInventors: Adam D. Polcyn, Paul A. Medwick, Andrew V. Wagner, Paul R. Ohodnicki, Jr., Dennis J. O'Shaughnessy, James P. Thiel
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Patent number: 11884580Abstract: A glass article having anti-sun properties includes a glass substrate having a stack of layers, which includes, successively from the surface of the substrate: a first module M1 having a layer based on a dielectric material with a thickness e1 or of a set of layers, a layer TN1 including titanium nitride with a thickness of between 2 nanometers and 80 nanometers, a second module M2 including a layer based on a dielectric material with a thickness e2 or of a set of layers based on dielectric materials with a cumulative thickness e2, an intermediate layer including at least one element selected from silicon, aluminum, titanium or a mixture of at least two of these elements is deposited between the layer TN1 and the first module M1 and/or between the layer TN1 and the second module M2, the intermediate layer having a thickness of between 0.2 nm and 6 nm.Type: GrantFiled: February 25, 2021Date of Patent: January 30, 2024Assignee: SAINT-GOBAIN GLASS FRANCEInventors: Corentin Monmeyran, Lorenzo Mancini, Alexandre Dehaupas, Laura Jane Singh
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Patent number: 11884790Abstract: A near-infrared shielding ultrafine particle dispersion body, and others, having excellent near-infrared shielding function, low haze value and excellent design, with suppressed change in color tone during outdoor use and blue haze phenomenon, using near-infrared shielding ultrafine particles transparent in visible light range, having excellent near-infrared shielding properties, and produced with high productivity, and a near-infrared shielding ultrafine particle dispersion body in which ultra-fine particles having near-infrared shielding properties are dispersed in solid medium, wherein the ultrafine particles are composite tungsten oxide ultrafine particles represented by general formula MxWyOz, and have XRD peak top intensity ratio value of 0.Type: GrantFiled: May 17, 2018Date of Patent: January 30, 2024Assignee: SUMITOMO METAL MINING CO., LTD.Inventors: Hiroshi Kobayashi, Kennichi Fujita, Hirofumi Tsunematsu, Takeshi Chonan
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Patent number: 11885993Abstract: An optical filter (1a) includes a UV-IR-absorbing layer and has the following characteristics (i) to (v) when light with wavelengths of 300 nm to 1200 nm is incident at an incident angle of 0°: (i) an average transmittance of 78% or more in the wavelength range of 450 nm to 600 nm; (ii) a spectral transmittance of 1% or less in the wavelength range of 750 nm to 1080 nm; (iii) a spectral transmittance of 1% or less in the wavelength range of 300 nm to 350 nm; (iv) a decreasing spectral transmittance with increasing wavelength in the wavelength range of 600 nm to 750 nm and a first IR cut-off wavelength in the wavelength range of 620 nm to 680 nm; and (v) an increasing spectral transmittance with increasing wavelength in the wavelength range of 350 nm to 450 nm and a first UV cut-off wavelength in the wavelength range of 380 nm to 430 nm.Type: GrantFiled: January 24, 2023Date of Patent: January 30, 2024Assignee: NIPPON SHEET GLASS COMPANY, LIMITEDInventor: Yuichiro Kubo
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Patent number: 11880018Abstract: An optical window for a hypersonic vehicle includes a window substrate and an optical coating on the window substrate, with the coating including multiple alternating layers of different materials. The coating may have many layers, for example having five or more alternating bi-layers and may be configured to still perform its optical function with some of the layers removed, such as by ablation of some of the layers through exposure to hypersonic flow. The different materials of the different layers may have different properties, for example with one of the materials being more resistant to ablation and/or chemical reaction than another of the layers. Coatings for anti-reflection additionally include a region of graded optical index between the sequence of bi-layers and the substrate. The hypersonic vehicle may include an optical sensor which operates by receiving light through the optical window.Type: GrantFiled: March 12, 2021Date of Patent: January 23, 2024Assignee: Raytheon CompanyInventor: Gary A. Frazier
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Patent number: 11872785Abstract: A glass laminate includes a non-glass substrate with a first surface and a second surface opposite the first surface. A glass sheet is laminated to the first surface of the non-glass substrate. A barrier film is laminated to the second surface of the non-glass substrate and includes a first surface adjacent to the non-glass substrate, a second surface opposite the first surface. A thickness of the barrier film can be at most about 0.5 mm. The second surface of the barrier film can define an outer surface of the glass laminate. The barrier film can be a multi-layer barrier film with a metal layer and a polymer layer. An absolute value of a flatness of the glass laminate determined according to European Standard EN 438 after exposure to 23° C. and 90% relative humidity for 7 days can be at most about 3 mm/m.Type: GrantFiled: January 19, 2022Date of Patent: January 16, 2024Assignee: Corning IncorporatedInventors: Jhee-mann Kim, Goo-Soo Lee
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Patent number: 11851812Abstract: Disclosed is a grain-finished leather-like sheet including a polyurethane skin film containing a polyether-based polyurethane, wherein the polyurethane skin film contains a quinacridone-based red pigment, and is colored in a red color having an L* value of ?80, an a* value of ?20, and a b* value of ?15 in an L*a*b* color system, and the number of cycles of a flexing endurance test at which cracking occurs in a surface of the polyurethane skin film is 100000 or more, when the flexing endurance test is performed on the grain-finished leather-like sheet under an environment of 20° C. using a flexometer after the grain-finished leather-like sheet has been irradiated with carbon arc at a black panel temperature of 63° C. for 100 hours with an irradiance of 500±50 W/m2, using ultraviolet carbon arc lamp light compliant with JIS B 7751.Type: GrantFiled: April 19, 2019Date of Patent: December 26, 2023Assignee: KURARAY CO., LTD.Inventors: Tetsuya Ashida, Kansai Hara
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Patent number: 11833785Abstract: An optical web comprising includes a substrate with an anterior coating applied to the anterior side of the substrate and a posterior coating applied to the posterior side of the substrate. The refractive index of the anterior coating and the posterior coating is less than that of the substrate. A second coating layer may be applied to the anterior coating layer and/or the posterior coating layer, where the second coating layer has a refractive index less than that of the coating layer it is applied to. Additional coating layers may be applied to produce a stack of layers that decrease monotonically in refractive indexes moving outward from the substrate. The optical webs may be laminated together to form tear-off laminated lens stacks.Type: GrantFiled: September 10, 2021Date of Patent: December 5, 2023Assignee: Racing Optics, Inc.Inventors: Bart E. Wilson, Stephen S. Wilson
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Patent number: 11814326Abstract: A method of forming a doped substrate comprises heating a substrate comprising a layer of a dopant on at least one surface to a predetermined temperature; applying a predetermined degree of isostatic external pressure on the surface of said substrate at said predetermined temperature for a time sufficient to induce thermal migration of the dopant into the substrate to provide a doped substrate; and removing the isostatic pressure and cooling the doped substrate to about room temperature. The substrate is a glass material, a single crystal material, a poly-crystalline material, a ceramic material, or a semiconductor material, and the substrate may be optically transparent. The dopant comprises one or more transition metals, one or more rare earth elements, or a combination of both. The layer of a dopant comprises one or more segregated layers of distinct chemical species. The isostatic pressure and elevated temperature may be applied simultaneously or sequentially.Type: GrantFiled: April 3, 2017Date of Patent: November 14, 2023Assignee: United States of America as represented by the Secretary of the Air ForceInventors: Gary Cook, Ronald W. Stites