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公开(公告)号：US10688771B2
公开(公告)日：2020-06-23
申请号：US15498381
申请日：2017-04-26
Applicant: University of Southern California
Inventor： Yong Chen , Yuanrui Li , Huachao Mao , Wei Wu
IPC: G02B27/42 , G02B27/09 , G02B26/10 , B33Y10/00 , B33Y30/00 , B29C67/00 , B29C64/277 , B29C64/135 , B29C64/386 , G02B5/00 , G02B5/22
Abstract: A three-dimensional printing approach based on stereolithography with variable printing resolutions to solve the trade-off between throughput and resolution. In this technology, the variable fabrication resolutions are achieved by switching light wavelength. The apparatus includes an optical filter based on high-contrast gratings. In one embodiment, the minimum printing resolution of the accordingly constructed stereolithography apparatus is reduced to 37 μm.
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公开(公告)号：US20170307902A1
公开(公告)日：2017-10-26
申请号：US15498381
申请日：2017-04-26
Applicant: University of Southern California
Inventor： Yong Chen , Yuanrui Li , Huachao Mao , Wei Wu
CPC classification number: B33Y30/00 , B29C64/135 , B29C64/277 , B29C64/386 , B33Y10/00 , G02B5/005 , G02B5/22 , G02B26/101 , G02B27/0988
Abstract: A three-dimensional printing approach based on stereolithography with variable printing resolutions to solve the trade-off between throughput and resolution. In this technology, the variable fabrication resolutions are achieved by switching light wavelength. The apparatus includes an optical filter based on high-contrast gratings. In one embodiment, the minimum printing resolution of the accordingly constructed stereolithography apparatus is reduced to 37 μm.
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公开(公告)号：US12094899B2
公开(公告)日：2024-09-17
申请号：US17333847
申请日：2021-05-28
Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA
Inventor： Wei Wu , Tse-Hsien Ou , Yunxiang Wang , Hao Yang
IPC: H01L27/146
CPC classification number: H01L27/1462 , H01L27/14685
Abstract: A semiconductor-based sensor with enhanced light absorption, and in particular, enhanced infrared light absorption includes a semiconductor light sensor element and a patterned spatially inhomogeneous dielectric layer disposed over the semiconductor light sensor element. Characteristically, spatial inhomogeneity of the patterned spatially inhomogeneous dielectric layer is optimized to provide a maximized electric field in the semiconductor light sensor element such light absorption is enhanced.
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公开(公告)号：US11230057B2
公开(公告)日：2022-01-25
申请号：US15993197
申请日：2018-05-30
Applicant: University of Southern California
Inventor： Yong Chen , Yuanrui Li , Huachao Mao , Wei Wu
IPC: B29C64/268 , B29C64/393 , B29C64/277 , B29C64/245 , B29C67/04 , B33Y10/00 , B33Y30/00 , B23K26/067 , B29C64/286 , B29C64/129 , B33Y50/02
Abstract: Methods, systems, and apparatus for multi-scale stereolithography. The apparatus includes a light source for providing a laser beam having a first shape and a first size. The apparatus includes a dynamic aperture having multiple apertures that are of the same or different sizes or shapes. The dynamic aperture is configured to receive the laser beam and modify at least one of the shape or the size of the laser beam. The apparatus includes a platform for holding an object to be printed. The apparatus includes a processor connected to at least one of the light source, the dynamic aperture or the platform. The processor is configured to move the platform to direct the laser beam or direct the laser beam to cure resin onto the object to be printed using a first aperture of the multiple apertures to form the object.
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公开(公告)号：US20170342577A1
公开(公告)日：2017-11-30
申请号：US15605805
申请日：2017-05-25
Applicant: University of Southern California
Inventor： Wei Wu , Yifei Wang
CPC classification number: C25B11/0415 , B01J19/088 , B01J2219/0809 , B01J2219/0841 , B01J2219/0843 , B01J2219/0877 , C25B1/10 , C25B13/04 , Y02E60/366
Abstract: In various embodiments, the invention teaches a method for water splitting with much higher efficiency than previous methods. By decreasing the distance between two electrodes to nanometer scale, even shorter than the electric field screening length, the external power required for water splitting is significantly reduced.
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Patent Agency Ranking
6.发明申请BROADBAND SUB-WAVELENGTH DIFFRACTIVE OPTICS FOR SOLAR CELLS AND METHODS OF MAKING AND USING THE SAME 审中-公开用于太阳能电池的宽带子波长偏差光学及其制造和使用方法公开(公告)号：US20140202519A1
公开(公告)日：2014-07-24
申请号：US13748050
申请日：2013-01-23
Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA
IPC: G02B5/18 , H01L31/052
CPC classification number: G02B19/0004 , G02B5/1809 , G02B19/0042 , H01L31/0549 , Y02E10/52
Abstract: Provided are solar cell assemblies for harvesting solar radiation having a diffractive optic, a reflective surface that directs solar radiation to the diffractive optic, and a plurality of solar converters including a first converter having a first energy conversion efficiency, wherein the diffractive optic directs a first portion of the solar radiation to the first converter and a second portion of the solar radiation to the second converter.
Abstract translation: 提供了用于收集具有衍射光学器件的太阳辐射的太阳能电池组件，将太阳辐射引导到衍射光学器件的反射表面，以及包括具有第一能量转换效率的第一转换器的多个太阳能转换器，其中衍射光学器件引导第一 太阳辐射的一部分到第一转换器，并且太阳辐射的第二部分到第二转换器。
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公开(公告)号：US20240111824A1
公开(公告)日：2024-04-04
申请号：US18475697
申请日：2023-09-27
Applicant: University of Southern California
Inventor： Tony Levi , Wei Wu , Sandeep Gupta , Buyun Chen , Zerui Liu , Deming Meng , Shiyu Su , Qiaochu Zhang , Shuo-Wei Chen
IPC: G06F17/11
CPC classification number: G06F17/11
Abstract: A circuit arrangement includes an array of switches that represent a Boolean satisfiability expression that has a plurality of clauses each defined by a combination of Boolean variables Xi or ¬Xi, a first plane, and a constraints network operatively arranged with the first plane. The constraints network enforces each of the clauses such that values of different ones of the variables continue to randomly or pseudo randomly flip until the values of the variables Xi and ¬Xi stop changing or a predetermined condition occurs.
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公开(公告)号：US20220118703A1
公开(公告)日：2022-04-21
申请号：US17566112
申请日：2021-12-30
Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA
Inventor： Yong Chen , Yuanrui Li , Huachao Mao , Wei Wu
IPC: B29C64/268 , B29C64/393 , B29C64/277 , B29C64/245 , B29C67/04 , B33Y10/00 , B33Y30/00 , B23K26/067 , B29C64/286 , B29C64/129
Abstract: Methods, systems, and apparatus for multi-scale stereolithography. The apparatus includes a light source for providing a laser beam having a first shape and a first size. The apparatus includes a dynamic aperture having multiple apertures that are of the same or different sizes or shapes. The dynamic aperture is configured to receive the laser beam and modify at least one of the shape or the size of the laser beam. The apparatus includes a platform for holding an object to be printed. The apparatus includes a processor connected to at least one of the light source, the dynamic aperture or the platform. The processor is configured to move the platform to direct the laser beam or direct the laser beam to cure resin onto the object to be printed using a first aperture of the multiple apertures to form the object.
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公开(公告)号：US09733402B2
公开(公告)日：2017-08-15
申请号：US14640423
申请日：2015-03-06
Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA
CPC classification number: G02B5/1842 , G02B5/1809 , G02B5/1814 , G02B5/1828 , G02B26/005 , G02B26/007 , G02F1/19 , G02F1/21 , G02F1/23 , G02F2201/307 , G02F2203/12
Abstract: A sub-pixel unit for a reflective display includes a color filter including a tunable high contrast grating. The tunable high contrast grating reflects light within a first range of wavelengths, and the sub-pixel unit can exist in a first state and a second state, the first state reflecting at least one of (i) light within a different range of wavelengths, and (ii) light of a different intensity level, than the second state.
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10.发明申请REFLECTIVE COLOR DISPLAY BASED ON TUNABLE SUB-WAVELENGTH HIGH CONTRAST GRATINGS 有权基于可调子波长高对比度光栅的反射色彩显示公开(公告)号：US20150253470A1
公开(公告)日：2015-09-10
申请号：US14640423
申请日：2015-03-06
Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA
CPC classification number: G02B5/1842 , G02B5/1809 , G02B5/1814 , G02B5/1828 , G02B26/005 , G02B26/007 , G02F1/19 , G02F1/21 , G02F1/23 , G02F2201/307 , G02F2203/12
Abstract: A sub-pixel unit for a reflective display includes a color filter including a tunable high contrast grating. The tunable high contrast grating reflects light within a first range of wavelengths, and the sub-pixel unit can exist in a first state and a second state, the first state reflecting at least one of (i) light within a different range of wavelengths, and (ii) light of a different intensity level, than the second state.
Abstract translation: 用于反射显示器的子像素单元包括具有可调高对比度光栅的滤色器。 可调谐高对比度光栅反射第一波长范围内的光，并且子像素单元可以以第一状态和第二状态存在，第一状态反映（i）不同波长范围内的光中的至少一个， 和（ii）与第二状态不同的强度水平的光。
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