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1. 发明授权

US06192175B1 Method and system for providing a multi-channel optical filter 有权
标题翻译：用于提供多通道滤光器的方法和系统
公开(公告)号：US06192175B1
公开(公告)日：2001-02-20
申请号：US09223038
申请日：1998-12-30
申请人： Wei Zhong Li , Feng Liu , Wenhui Wang
发明人： Wei Zhong Li , Feng Liu , Wenhui Wang
IPC分类号： G02B626
CPC分类号： G02B6/2937
摘要： A system and method for filtering are disclosed. The system and method include providing first, second, third and fourth fibers for carrying a first, second, third, and fourth optical signals, respectively. The method and system also include providing a holder, a filter, and a first wedge assembly. The holder is for receiving the first fiber, the second fiber, the third fiber, and the fourth fiber therein. The filter is for filtering the first optical signal, the second optical signal, the third optical signal, and the fourth optical signal to provide a first filtered optical signal, a second filtered optical signal, a third filtered optical signal, and a fourth filtered optical signal. The first wedge assembly is disposed between the holder and the filter. The first wedge assembly is for directing the first optical signal towards the filter in a first path, for directing the second optical signal toward the filter in a second path, for directing the third optical signal towards the filter in a third path, and for directing the fourth optical signal toward the filter in a fourth path.
摘要翻译：公开了一种用于滤波的系统和方法。该系统和方法包括提供分别用于承载第一，第二，第三和第四光信号的第一，第二，第三和第四光纤。该方法和系统还包括提供保持器，过滤器和第一楔形组件。保持器用于在其中接收第一光纤，第二光纤，第三光纤和第四光纤。滤波器用于对第一光信号，第二光信号，第三光信号和第四光信号进行滤波，以提供第一滤波光信号，第二滤波光信号，第三滤波光信号和第四滤波光信号信号。第一楔形组件设置在保持器和过滤器之间。第一楔形组件用于在第一路径中将第一光信号引向滤光器，用于将第二光信号以第二路径引向滤光器，用于在第三路径中将第三光信号引向滤光器，并用于引导在第四路径中朝向滤波器的第四光信号。

2. 发明授权

US06272264B1 Multiple-channel optical filter 有权
标题翻译：多通道滤光片
公开(公告)号：US06272264B1
公开(公告)日：2001-08-07
申请号：US09348728
申请日：1999-07-06
申请人： Wei Zhong Li , Feng Liu , Wenhui Wang , Wei Luo
发明人： Wei Zhong Li , Feng Liu , Wenhui Wang , Wei Luo
IPC分类号： G02B626
CPC分类号： G02B6/2937 , G02B6/29395
摘要： A method and system for providing an optical filter is disclosed. The method and system include providing a first fiber for carrying a first optical signal and a second fiber for carrying a second optical signal. The first fiber has an end. The method and system also include providing a filter and a lens disposed between the filter and the end of the first fiber. The filter has a surface and is for filtering the first optical signal to provide the second optical signal. The lens has an axis and is for collimating the first optical signal. A normal to the surface of the filter is disposed at a first nonzero angle to the axis. The first optical signal has a first direction of propagation at the surface of the filter. The first direction of propagation is disposed at a second nonzero angle from the normal to the surface of the filter. The filter can be tuned by rotating the filter around the axis. Furthermore, additional fibers can be added to simultaneously filter multiple channels.
摘要翻译：公开了一种用于提供滤光器的方法和系统。该方法和系统包括提供用于承载第一光信号的第一光纤和用于承载第二光信号的第二光纤。第一根纤维结束了。该方法和系统还包括提供过滤器和布置在过滤器和第一纤维的端部之间的透镜。滤波器具有表面，并且用于对第一光信号进行滤波以提供第二光信号。透镜具有轴并用于准直第一光信号。过滤器表面的法线设置成与轴线成非零的第一角度。第一光信号在滤光器表面具有第一传播方向。传播的第一方向被布置在距过滤器表面的法线的第二非零角度。可以通过围绕轴旋转过滤器来调整过滤器。此外，可以添加额外的纤维以同时过滤多个通道。

3. 发明授权

US06493140B1 Polarization splitter and combiner and optical devices using the same 有权
标题翻译：偏振分离器和组合器和使用其的光学器件相同
公开(公告)号：US06493140B1
公开(公告)日：2002-12-10
申请号：US09418136
申请日：1999-10-14
申请人： Wei-Zhong Li , Yanfeng Yang , Feng Liu , Wei Luo
发明人： Wei-Zhong Li , Yanfeng Yang , Feng Liu , Wei Luo
IPC分类号： G02B2728
CPC分类号： G02B6/2713 , G02B5/3083 , G02B6/2773 , G02B27/283
摘要： A polarization splitter and combiner for processing a beam containing a first polarization and a second polarization to spatially separate these polarizations by using a birefringent element for receiving the beam and walking off the first polarization from the second polarization by an initial walk-off distance. A first lensing element with an optical axis is oriented to admit the first polarization at a first input point and output the first polarization at a first output angle to the optical axis and the second polarization at a second output angle to the optical axis. A second lensing element positioned after the first lensing element is oriented to receive the polarizations at input angles equal to their respective output angles, and outputs both polarizations at a first and second output point respectively. In a symmetrical arrangement, the first and second output points are separated by the initial walk-off distance. Additional walk-off control elements and optics can be interposed between the first and second lensing elements, depending on the functionality of the beam splitter and combiner or optical device employing the same.
摘要翻译：一种偏振分离器和组合器，用于处理包含第一偏振和第二偏振的光束，以通过使用用于接收光束的双折射元件和通过初始离散距离从第二偏振离开第一偏振来空间分离这些偏振。具有光轴的第一透镜元件被定向为在第一输入点处允许第一偏振，并且以与光轴成第二输出角以第一输出角度以第一输出角输出第一偏振，并以第二输出角输出第一偏振。定位在第一透镜元件之后的第二透镜元件被定向成以等于其各自的输出角度的输入角接收极化，并且分别在第一和第二输出点处输出两个偏振。在对称布置中，第一和第二输出点被初始离开距离分开。取决于使用其的分束器和组合器或光学装置的功能性，可以在第一和第二透镜元件之间插入附加的离散控制元件和光学元件。

4. 发明授权

US6084994A Tunable, low back-reflection wavelength division multiplexer 失效
标题翻译：可调谐的低背反射波分复用器
公开(公告)号：US6084994A
公开(公告)日：2000-07-04
申请号：US54032
申请日：1998-04-02
申请人： Wei-Zhong Li , Feng Liu , Haiguang Lu
发明人： Wei-Zhong Li , Feng Liu , Haiguang Lu
IPC分类号： G02B6/34 , G02B6/26
CPC分类号： G02B6/2937 , G02B6/2938 , G02B6/29395
摘要： The tunable wavelength division multiplexer is disclosed. The wavelength division multiplexer includes a fiber, a holder, a filter, and an isolator. The fiber carries an optical signal that includes a plurality of channels. The holder has and end and an axis. The holder receives the first fiber in an aperture such that the first fiber is separated from the axis by a distance. The distance is selected to tune the first angle of incidence so that the filter transmits a portion of the optical signal centered around at least one particular wavelength. The optical signal from the fiber impacts the filter at a first angle of incidence. The filter transmits a portion of the optical signal centered around at least one particular wavelength. The isolator is optically coupled with the filter and prevents a first portion of the portion of optical signal transmitted by the filter from returning to the first fiber. Thus, not only is the filter tunable, but because of the presence of the isolator, back reflections to the first fiber are also reduced.
摘要翻译：公开了可调谐波分复用器。波分复用器包括光纤，保持器，滤波器和隔离器。光纤承载包括多个信道的光信号。支架具有和端部和轴线。保持器接收孔中的第一光纤，使得第一光纤与轴分离一段距离。选择该距离以调整第一入射角，使得滤光器以至少一个特定波长为中心的部分光信号传输。来自纤维的光信号以第一入射角冲击过滤器。滤波器以至少一个特定波长为中心的一部分光信号发送。隔离器与滤波器光耦合，并防止由滤波器传输的光信号部分的第一部分返回到第一光纤。因此，滤波器不仅可调谐，而且由于隔离器的存在，对第一光纤的反射也减小。

5. 发明授权

US6078710A Method and system for providing a multi-channel optical filter 失效
标题翻译：用于提供多通道滤光器的方法和系统
公开(公告)号：US6078710A
公开(公告)日：2000-06-20
申请号：US54031
申请日：1998-04-02
申请人： Wei-Zhong Li , Feng Liu
发明人： Wei-Zhong Li , Feng Liu
IPC分类号： G02B6/34 , G02B6/26
CPC分类号： G02B6/2937 , G02B6/2938
摘要： A system and method for providing filtering is disclosed. The system and method include providing a first fiber and a second fiber. The first fiber is for carrying a first optical signal. The second fiber is for carrying a second optical signal. The method and system further include providing a holder, a filter, a first wedge, and a third fiber. The holder is for receiving the first optical fiber and the second optical fiber therein. The filter is for filtering the first and second optical signals to provide a first and a second filtered optical signal, respectively. The first wedge is disposed between the holder and the filter. The first wedge is for directing the first optical signal towards the filter in a first path and for directing the second optical signal toward the filter in a second path. The third fiber is for receiving the first filtered optical signal. The fourth optical fiber is for receiving the second filtered optical signal.
摘要翻译：公开了一种用于提供过滤的系统和方法。该系统和方法包括提供第一光纤和第二光纤。第一光纤用于承载第一光信号。第二光纤用于承载第二光信号。所述方法和系统还包括提供保持器，过滤器，第一楔形物和第三纤维。保持器用于在其中接收第一光纤和第二光纤。滤波器用于滤波第一和第二光信号以分别提供第一和第二滤波光信号。第一楔形物设置在保持器和过滤器之间。第一楔形物用于将第一光信号以第一路径引向滤光器，并用于在第二路径中将第二光信号引向滤光器。第三光纤用于接收第一滤波光信号。第四光纤用于接收第二滤波光信号。

6. 发明授权

US12084808B2 Self-cleaning coating, self-cleaning fiber, self-cleaning carpet and uses thereof 有权
公开(公告)号：US12084808B2
公开(公告)日：2024-09-10
申请号：US17049546
申请日：2018-10-31
申请人： Feng Liu
发明人： Feng Liu
IPC分类号： D06M11/46 , A47G27/02 , B82Y30/00 , B82Y40/00 , D06M11/48 , D06M11/78 , D06M23/08 , D06M101/34
CPC分类号： D06M11/46 , A47G27/02 , D06M11/48 , D06M11/78 , D06M23/08 , B82Y30/00 , B82Y40/00 , D06M2101/34 , D06M2200/01 , D06M2200/12
摘要： Provided are a self-cleaning coating, a self-cleaning fiber, a self-cleaning carpet and uses thereof. The self-cleaning coating is provided with a porous structure where pores communicate with one another; the volume of the pores comprised in the coating makes up 20%-98% of the total volume of the coating; and the pore diameter of the pores in the porous structure is between 0.5 nm-50 nm. The self-cleaning coating is mainly prepared from host materials; the host materials are one or more of titanium oxide, zirconia, titanium nitride, silicon oxide, tungsten oxide, g-C3N4 semiconducting polymer, perovskite semiconductor, silver, iron, gold, aluminum, copper, zinc, tin and platinum.

7. 外观设计

USD1017528S1 Solar panel 有权
公开(公告)号：USD1017528S1
公开(公告)日：2024-03-12
申请号：US29901088
申请日：2023-08-29
申请人： Feng Liu
设计人： Feng Liu
摘要： FIG. 1 is a front, right and top perspective view of a solar panel, showing my new design;
FIG. 2 is a rear, left and bottom perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The broken lines shown in the drawings illustrate portions of the solar panel that form no part of the claimed design.

8. 外观设计

USD946814S1 Light 有权
公开(公告)号：USD946814S1
公开(公告)日：2022-03-22
申请号：US29775295
申请日：2021-03-23
申请人： Feng Liu
设计人： Feng Liu

9. 外观设计

USD901325S1 Vase 有权
公开(公告)号：USD901325S1
公开(公告)日：2020-11-10
申请号：US29696001
申请日：2019-06-24
申请人： Feng Liu
设计人： Feng Liu
摘要： FIG. 1 is a perspective view of a vase showing my new design;
FIG. 2 is another perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a right side elevational view thereof;
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The broken lines illustrate portions of the vase that form no part of the claimed design.

10. 发明授权

US09429634B2 MRI coil design with volumetric trough-shaped coil elements 有权
标题翻译： MRI线圈设计与体积槽形线圈元件
公开(公告)号：US09429634B2
公开(公告)日：2016-08-30
申请号：US12936682
申请日：2009-04-07
申请人： Stuart Crozier , Bing Keong Li , Feng Liu , Ewald Weber
发明人： Stuart Crozier , Bing Keong Li , Feng Liu , Ewald Weber
IPC分类号： G01R33/3415 , G01R33/34 , G01R33/36 , G01R33/561
CPC分类号： G01R33/34046 , G01R33/34007 , G01R33/3415 , G01R33/365 , G01R33/5611
摘要： A coil for a magnetic resonance imaging device consists of multiple coil elements arranged about an imaging space. Each coil element comprise radiating structures oriented at an angle to a tangent of the imaging space. Angling the radiating structures reduces mutual coupling between coil elements and enhances the penetration of the radio frequency field to the imaging space.
摘要翻译：用于磁共振成像装置的线圈由围绕成像空间布置的多个线圈元件组成。每个线圈元件包括以与成像空间的切线成一角度定向的辐射结构。倾斜辐射结构减少线圈元件之间的相互耦合，并增强射频场对成像空间的穿透。

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