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71. 发明授权

US11374382B2 Method for increasing EAM bandwidth, component structure and manufacturing process thereof using plural p-i-n waveguides serially connected by high-impedance transmission lines 有权
公开(公告)号：US11374382B2
公开(公告)日：2022-06-28
申请号：US16903159
申请日：2020-06-16
申请人： LuxNet Corporation
发明人： Fang-Jeng Lin , Yu-Chun Fan , Pi-Cheng Law , Yi-Ching Chiu
IPC分类号： H01S5/026 , H01S5/06 , H01S5/20 , H01S5/028 , G02F1/015 , G02F1/01 , G02F1/025
摘要： A method for increasing the bandwidth of an electroabsorption modulator (EAM) includes the following steps. First, a plurality of p-i-n active waveguides for the EAM are defined on a p-i-n optical waveguide forming an EAM having a shorter p-i-n active waveguide length. Then, the bandwidth of the EAM can be increased. Second, the high-impedance transmission lines are used in series to connect the EAM sections to reduce the microwave reflection and then increase the device bandwidth. Finally, the impedance-controlled transmission lines for the signal input and output can not only reduce the parasitic effects resulting from packaging, but also reduce the microwave reflection resulting from the impedance mismatch at the device input and load.

72. 发明授权

US11372231B2 Color changing materials arranged in slow particle coloration materials 有权
公开(公告)号：US11372231B2
公开(公告)日：2022-06-28
申请号：US16694730
申请日：2019-11-25
申请人： adidas AG
发明人： Michel Reginald Pierre Joseph Lussier
IPC分类号： G02F1/01 , G02B26/00 , C09K9/00 , B01J13/02 , B82Y30/00 , C09D11/50
摘要： Articles comprises iron oxide colloidal nanocrystals arranged within chains, wherein the chains of nanocrystals are embedded within a material used to form the article or a transfer medium used to transfer a color to the article are described. The material or transfer medium includes elastic properties that allow the nanocrystals to display a temporary color determined by the strength of an external force applied to the article, and the material or transfer medium includes memory properties that cause the displayed temporary color to dissipate when the external force is removed, wherein the dissipation of the displayed temporary color is sufficiently slow as to be visually observable by an average observer's unaided eye.

73. 发明申请

US20220197064A1 ULTRA-CLOSE-RANGE METALLIC HEATER THERMO-OPTIC PHASE SHIFTER 有权
公开(公告)号：US20220197064A1
公开(公告)日：2022-06-23
申请号：US17396350
申请日：2021-08-06
申请人： Huazhong University of Science and Technology
发明人： Janji Dong , Yanxian Wei , Hailong Zhou , Xinliang Zhang
IPC分类号： G02F1/00 , G02F1/01 , G02F1/025
摘要： The present invention belongs to the field of integrated optical waveguide modulation, and specifically, relates to an ultra-close-range metallic heater thermo-optic phase shifter, which includes: a substrate, and a metallic heater and an optical waveguide respectively arranged on the substrate; in which the metallic heater and the optical waveguide are arranged at a close distance, and the distance is less than 600 nm. The material of the metallic heater is titanium, titanium nitride, aluminum, gold, and/or a metal with a larger imaginary part of the refractive index. The present invention includes two solutions: side heating and top surface heating. In the side heating solution, the heater is placed close to a side of the waveguide in parallel, and heat is conducted to the optical waveguide through the substrate to achieve thermo-optic phase shift; while in the top surface heating solution, an auxiliary waveguide is placed on a side of the optical waveguide, and the heater is placed above the auxiliary waveguide; heat is conducted to the optical waveguide through a top silicon oxide layer to achieve thermo-optic phase shift. The present invention utilizes the principle of parity-time symmetry, greatly shortens the distance between the heaters and the waveguide, realizes low-loss and high-rate thermo- optic modulation. In addition, it is compatible with the CMOS process, and is a standard process.

74. 发明授权

US11366344B2 Optical modulator 有权
公开(公告)号：US11366344B2
公开(公告)日：2022-06-21
申请号：US16651633
申请日：2018-09-28
申请人： TDK Corporation
发明人： Shinji Iwatsuka , Makoto Endo , Kenji Sasaki
IPC分类号： G02F1/035 , G02F1/01 , G02F1/225 , G02B6/12 , G02F1/21
摘要： An optical modulator includes: a substrate; a waveguide layer including first and second optical waveguides formed of an electro-optic material film on the substrate to have a ridge shape and to be disposed adjacent to each other; an RF part that applies a modulated signal to the optical waveguides; and a DC part that applies a DC bias to the optical waveguides. The DC part includes: a buffer layer covering at least upper surfaces of the optical waveguides; a first bias electrode opposed to the first optical waveguide through the buffer layer; and a second bias electrode provided adjacent to the first bias electrode. A first DC bias voltage is applied between the first and second bias electrodes. A waveguide layer removal area in which at least part of the waveguide layer is removed is provided at least under an area between the first and second bias electrodes.

75. 发明申请

US20220187633A1 FILM AND SMART WINDOW COMPRISING THE SAME 有权
公开(公告)号：US20220187633A1
公开(公告)日：2022-06-16
申请号：US17193990
申请日：2021-03-05
申请人： LMS Co., Ltd.
发明人： Dong Uk LEE , Ho Seong NA , Ji Tae KIM , Jong Yoon LEE , Sang Hyun YOON , Seong Yong YOON , Mi Young PARK
IPC分类号： G02F1/01 , E06B9/24
摘要： A film, in which a phase transition material is not applied on an entire surface thereof and a pattern form is provided so that the aesthetically superior film of which a color is not cloudy but bright may be obtained and which has a high visible light transmittance as well as superior thermochromic properties, and a smart window including the same.

76. 发明申请

US20220187548A1 FARADAY ROTATOR INTERCONNECT AS A THROUGH-VIA CONFIGURATION IN A PATCH ARCHITECTURE 有权
公开(公告)号：US20220187548A1
公开(公告)日：2022-06-16
申请号：US17122340
申请日：2020-12-15
申请人： Intel Corporation
发明人： Brandon C. MARIN , Divya PRATAP , Hiroki TANAKA , Nitin DESHPANDE , Omkar KARHADE , Robert Alan MAY , Sri Ranga Sai BOYAPATI , Srinivas V. PIETAMBARAM , Xiaoqian LI , Sai VADLAMANI , Jeremy ECTON
IPC分类号： G02B6/42 , G02F1/01 , G02F1/09
摘要： Embodiments disclosed herein include optical systems with Faraday rotators in order to enhance efficiency. In an embodiment, a photonics package comprises an interposer and a patch over the interposer. In an embodiment, the patch overhangs an edge of the interposer. In an embodiment, the photonics package further comprises a photonics die on the patch and a Faraday rotator passing through a thickness of the patch. In an embodiment, the Faraday rotator is below the photonics die.

77. 发明授权

US11360311B2 Head mounted display device 有权
公开(公告)号：US11360311B2
公开(公告)日：2022-06-14
申请号：US16952091
申请日：2020-11-19
申请人： HTC Corporation
发明人： Cheng-Hsiu Tsai , Wei-Jen Chang , Fu-Cheng Fan
IPC分类号： G02F1/1335 , G02B27/01 , G02B27/28 , G02F1/01 , G02F1/137
摘要： A head mounted display device includes a display, a light waveguide element, and a light shutter. The display periodically provides a display image. The light waveguide element receives the display image, generates a projection image according to the display image, projects the projection image from a second surface, and projects the projection image to a target zone from a first surface. The light shutter is adjacent to the second surface of the light waveguide element and is coupled to the light waveguide element. The light shutter is periodically disabled and enabled in an alternating manner.

78. 发明申请

US20220179147A1 PATTERNED BACKLIGHT FOR DISPLAY PANEL 有权
公开(公告)号：US20220179147A1
公开(公告)日：2022-06-09
申请号：US17321121
申请日：2021-05-14
申请人： Facebook Technologies, LLC
发明人： Fenglin Peng , Ying Geng , Alexander Koshelev , Giuseppe Calafiore , Jacques Gollier , Yun-Han Lee , Lu Lu , Linghui Rao
IPC分类号： F21V8/00 , G02F1/01
摘要： A display panel has an array of pixels backlighted by a backlight including a lightguide and a plurality of out-coupling gratings. The locations of the out-coupling gratings are coordinated with positions of pixels in the array of pixels. The backlight may include a light-conducting transparent slab or an array of linear waveguides running parallel to the rows of the pixel array, with the gratings formed in the slab or in the waveguide. Wavelength composition and polarization of the light emitted by the waveguide may be matched to the transmission spectral bands and transmission polarization of the display panel.

79. 发明授权

US11353726B2 Optoelectronic module, method for operating an optoelectronic module and head-mounted display 有权
公开(公告)号：US11353726B2
公开(公告)日：2022-06-07
申请号：US17028539
申请日：2020-09-22
申请人： OSRAM Opto Semiconductors GmbH
发明人： Martin Rudolf Behringer , Hubert Halbritter , Ann Russell
IPC分类号： G02F1/01 , G02F1/19 , H01S5/40 , H01S5/028
摘要： An optoelectronic module comprising at least one semiconductor laser and a photonic chip is described herein. The semiconductor laser emits a primary electromagnetic radiation which is coupled into the photonic chip. The photonic chip comprises at least one first waveguide and at least one optical Bragg reflector having a reflectivity which is modulated by an electrical modulation signal. A secondary electromagnetic radiation is coupled out of the photonic chip by means of at least one second waveguide, wherein the secondary electromagnetic radiation has a dominant wavelength which is modulated in dependence of the electrical modulation signal. Further, a method for operating an optoelectronic module and a Head-Mounted Display comprising an optoelectronic module are provided.

80. 发明授权

US11344978B2 Multi-functional ingester system for additive manufacturing 有权
公开(公告)号：US11344978B2
公开(公告)日：2022-05-31
申请号：US16778860
申请日：2020-01-31
申请人： Seurat Technologies, Inc.
发明人： James A. DeMuth , Erik Toomre , Francis L. Leard , Kourosh Kamshad , Heiner Fees , Eugene Berdichevsky
IPC分类号： B23K37/04 , B29C64/264 , B29C64/153 , B33Y10/00 , B33Y40/00 , B33Y50/02 , B33Y70/00 , B33Y80/00 , B33Y99/00 , B23K26/12 , B23K26/142 , B23K26/144 , B23K26/70 , B29C64/386 , B29C64/268 , B22F3/24 , B23K15/00 , B23K15/06 , B23K26/03 , B23K26/08 , B23K26/16 , B23K26/36 , B25J11/00 , G02B7/14 , G02B7/16 , G02B7/182 , G02B15/04 , G02B15/10 , G02B19/00 , G02F1/01 , G02F1/1333 , G02F1/135 , G05B17/02 , H01S5/40 , B22F12/00 , B22F10/00 , H01S5/00 , B23K26/00 , B23K26/082 , B23K101/00 , B23K101/24 , B23K103/00 , B23K101/02 , B29K105/00 , G02B27/28 , G07C3/14 , B22F10/10 , B33Y30/00 , B23K26/342 , B28B1/00 , G02B26/08 , G02B27/09 , G02B27/14 , G02B27/00
摘要： A method and an apparatus for collecting powder samples in real-time in powder bed fusion additive manufacturing may involves an ingester system for in-process collection and characterizations of powder samples. The collection may be performed periodically and uses the results of characterizations for adjustments in the powder bed fusion process. The ingester system of the present disclosure is capable of packaging powder samples collected in real-time into storage containers serving a multitude purposes of audit, process adjustments or actions.

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