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公开(公告)号：US5923470A
公开(公告)日：1999-07-13
申请号：US843974
申请日：1997-04-17
申请人： J. J. Pan , Kai Zhang , Yonglin Huang
发明人： J. J. Pan , Kai Zhang , Yonglin Huang
CPC分类号： G02B6/2713 , G02B27/283 , G02B5/3083 , G02B6/2773
摘要： An improved polarization beam splitter formed by a collimator and two similarly shaped, birefringent crystal prisms is provided. The light from the collimator is incident upon the first face of the first birefringent crystal prism which also has second and third faces. The collimated light is incident upon the second face at an angle .phi. with respect to a line normal to the second face so that light polarized perpendicular to a plane of incidence upon the second face is reflected toward the third face and light polarized in the plane of incidence is refracted at the second face. The second birefringent crystal prism has a second face parallel to, and in close proximity with, the second face of the first birefringent prism so that light refracted at the second face of said first prism is refracted at the second face of the second prism and into the second prism. A first face of the second prism is positioned with respect to its second face so that light refracted into the second prism is refracted at the first face from the second prism cross-sectionally undistorted with respect to a cross-section of the light polarized in the plane of incidence at the second face of the first prism. This polarization beam splitter can handle high power without distorting the beam.
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公开(公告)号：US5818981A
公开(公告)日：1998-10-06
申请号：US923883
申请日：1997-09-04
申请人： J. J. Pan , Kai Zhang , Yonglin Huang
发明人： J. J. Pan , Kai Zhang , Yonglin Huang
CPC分类号： G02B6/2746 , G02B27/283 , G02B5/3083 , G02B6/272 , G02B6/278 , G02F1/093
摘要： A high performance optical circulator is formed by a polarization beam splitter and optical port assemblies. The polarization beam splitter is formed by two prisms with an interface between the prisms. The interface transmits linearly polarized light directed at the interface in directions responsive to a polarization orientation of linearly polarized light. The optical port assemblies are arranged with respect to the polarization beam splitter so that light from one port assembly is transmitted by the polarization beam splitter interface to another optical port assembly and light from this optical port assembly is transmitted by the beam splitter interface to still another optical port assembly.
摘要翻译： 高性能的光环行器由偏振分束器和光端口组件形成。 偏振分束器由具有棱镜之间的界面的两个棱镜形成。 界面沿着响应于线偏振光的偏振取向的方向透射在界面处指向的线偏振光。 光端口组件相对于偏振分束器布置，使得来自一个端口组件的光由偏振分束器接口传输到另一光端口组件，并且来自该光端口组件的光由分束器接口传输到另一个 光端口组件
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公开(公告)号：US5682446A
公开(公告)日：1997-10-28
申请号：US726399
申请日：1996-10-03
申请人： J. J. Pan , Kai Zhang , Yonglin Huang
发明人： J. J. Pan , Kai Zhang , Yonglin Huang
CPC分类号： G02B6/2746 , G02B27/283 , G02B5/3083 , G02B6/272 , G02B6/278 , G02F1/093
摘要： A high performance optical circulator is formed by a polarization beam splitter and optical port assemblies. The polarization beam splitter is formed by two prisms with an interface between the prisms. The interface transmits linearly polarized light directed at the interface in directions responsive to a polarization orientation of linearly polarized light. The optical port assemblies are arranged with respect to the polarization beam splitter so that light from one port assembly is transmitted by the polarization beam splitter interface to another optical port assembly and light from this optical port assembly is transmitted by the beam splitter interface to still another optical port assembly.
摘要翻译： 高性能的光环行器由偏振分束器和光端口组件形成。 偏振分束器由具有棱镜之间的界面的两个棱镜形成。 界面沿着响应于线偏振光的偏振取向的方向透射在界面处指向的线偏振光。 光端口组件相对于偏振分束器布置，使得来自一个端口组件的光由偏振分束器接口传输到另一光端口组件，并且来自该光端口组件的光由分束器接口传输到另一个 光端口组件
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公开(公告)号：US5689367A
公开(公告)日：1997-11-18
申请号：US542871
申请日：1995-10-13
申请人： J. J. Pan , Kai Zhang , Yonglin Huang
发明人： J. J. Pan , Kai Zhang , Yonglin Huang
CPC分类号： G02B6/2713 , G02B27/283 , G02B5/3083 , G02B6/2773
摘要： An improved polarization beam splitter formed by a collimator and two similarly shaped, birefringent crystal prisms is provided. The light from the collimator is incident upon the first face of the first birefringent crystal prism which also has second and third faces. The collimated light is incident upon the second face at an angle .phi. with respect to a line normal to the second face so that light polarized perpendicular to a plane of incidence upon the second face is reflected toward the third face and light polarized in the plane of incidence is refracted at the second face. The second birefringent crystal prism has a second face parallel to, and in close proximity with, the second face of the first birefringent prism so that light refracted at the second face of said first prism is refracted at the second face of the second prism and into the second prism. A first face of the second prism is positioned with respect to its second face so that light refracted into the second prism is refracted at the first face from the second prism cross-sectionally undistorted with respect to a cross-section of the light polarized in the plane of incidence at the second face of the first prism. This polarization beam splitter can handle high power without distorting the beam.
摘要翻译： 提供了由准直器和两个类似形状的双折射晶体棱镜形成的改进的偏振分束器。 来自准直器的光入射到第一双折射晶体棱镜的第一面上，该第一双折射晶体棱镜也具有第二和第三面。 准直光以与第二面垂直的线成角度地入射在第二面上，使得垂直于第二面的入射平面偏振的光被朝向第三面反射，并且在 发生率在第二面折射。 第二双折射晶体棱镜具有与第一双折射棱镜的第二面平行且非常接近的第二面，使得在所述第一棱镜的第二面处折射的光在第二棱镜的第二面折射并且进入 第二棱镜。 第二棱镜的第一面相对于其第二面定位，使得折射到第二棱镜中的光在第一面处从第二棱镜折射成相对于在第二棱镜中偏振的光的截面横截面不变形 在第一棱镜的第二面处的入射面。 该偏振分束器可以处理高功率而不会使光束失真。
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公开(公告)号：US6018418A
公开(公告)日：2000-01-25
申请号：US244285
申请日：1999-02-03
申请人： Jing-Jong J. Pan , Kai Zhang , Yonglin Huang
发明人： Jing-Jong J. Pan , Kai Zhang , Yonglin Huang
CPC分类号： G02B6/2713 , G02B27/283 , G02B5/3083 , G02B6/2773
摘要： An improved polarization beam splitter formed by a collimator and two similarly shaped, birefringent crystal prisms is provided. The light from the collimator is incident upon the first face of the first birefringent crystal prism which also has second and third faces. The collimated light is incident upon the second face at an angle .phi. with respect to a line normal to the second face so that light polarized perpendicular to a plane of incidence upon the second face is reflected toward the third face and light polarized in the plane of incidence is refracted at the second face. The second birefringent crystal prism has a second face parallel to, and in close proximity with, the second face of the first birefringent prism so that light refracted at the second face of said first prism is refracted at the second face of the second prism and into the second prism. A first face of the second prism is positioned with respect to its second face so that light refracted into the second prism is refracted at the first face from the second prism cross-sectionally undistorted with respect to a cross-section of the light polarized in the plane of incidence at the second face of the first prism. This polarization beam splitter can handle high power without distorting the beam.
摘要翻译： 提供了由准直器和两个类似形状的双折射晶体棱镜形成的改进的偏振分束器。 来自准直器的光入射到第一双折射晶体棱镜的第一面上，该第一双折射晶体棱镜也具有第二和第三面。 准直光以与第二面垂直的线成角度地入射在第二面上，使得垂直于第二面的入射平面偏振的光被朝向第三面反射，并且在 发生率在第二面折射。 第二双折射晶体棱镜具有与第一双折射棱镜的第二面平行且非常接近的第二面，使得在所述第一棱镜的第二面处折射的光在第二棱镜的第二面折射并且进入 第二棱镜。 第二棱镜的第一面相对于其第二面定位，使得折射入第二棱镜的光在第一面处从第二棱镜折射成相对于在第二棱镜的偏振光的横截面为横截面不变形 在第一棱镜的第二面处的入射面。 该偏振分束器可以处理高功率而不会使光束失真。
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公开(公告)号：US11325229B2
公开(公告)日：2022-05-10
申请号：US16695204
申请日：2019-11-26
申请人： Kai Zhang
发明人： Kai Zhang
摘要： An assembly of a wrench and a socket. The wrench has a penetrating driving hole, which has a retaining ring mounted therein. The socket, having a front end and a tail end, comprises a socketing portion axially extended between the front end and the tail end thereof for driving a fastening element. The socket comprises a retaining portion formed on the periphery thereof. The retaining portion has a retaining groove arranged at retaining corners radially indented for matching the retaining ring. The retaining groove is positioned between the front end and the tail end. The retaining portion further has a buffer groove formed between the retaining groove and the front end, so as to allow the buffer groove to successively provide a buffer or damping effect with the retaining ring when the retaining groove is decoupled from the retaining ring. Accordingly, the user is allowed to control his/her force more easily and improves the operational safety for the process of pulling out of the socket.
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公开(公告)号：US20210046626A1
公开(公告)日：2021-02-18
申请号：US16695204
申请日：2019-11-26
申请人： Kai Zhang
发明人： Kai Zhang
摘要： An assembly of a wrench and a socket. The wrench has a penetrating driving hole, which has a retaining ring mounted therein. The socket, having a front end and a tail end, comprises a socketing portion axially extended between the front end and the tail end thereof for driving a fastening element. The socket comprises a retaining portion formed on the periphery thereof. The retaining portion has a retaining groove arranged at retaining corners radially indented for matching the retaining ring. The retaining groove is positioned between the front end and the tail end. The retaining portion further has a buffer groove formed between the retaining groove and the front end, so as to allow the buffer groove to successively provide a buffer or damping effect with the retaining ring when the retaining groove is decoupled from the retaining ring. Accordingly, the user is allowed to control his/her force more easily and improves the operational safety for the process of pulling out of the socket.
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公开(公告)号：USD887820S1
公开(公告)日：2020-06-23
申请号：US29668012
申请日：2018-10-26
申请人： Kai Zhang , Saeed Nikayin , Gilbert Loera
设计人： Kai Zhang , Saeed Nikayin , Gilbert Loera
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公开(公告)号：USD887252S1
公开(公告)日：2020-06-16
申请号：US29662476
申请日：2018-09-05
申请人： Kai Zhang , Saeed Nikayin , Gilbert Loera
设计人： Kai Zhang , Saeed Nikayin , Gilbert Loera
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公开(公告)号：US10326990B2
公开(公告)日：2019-06-18
申请号：US15308732
申请日：2015-05-11
申请人： Jicheng An , Kai Zhang
发明人： Jicheng An , Kai Zhang
IPC分类号： H04N19/12 , H04N19/159 , H04N19/176 , H04N19/157 , H04N19/44
摘要： A method and apparatus of adaptive image and video coding including an alternative transform other than the discrete cosine transform (DCT) and discrete sine transform (DST) type VII (DST-VII) are disclosed. For at least one block size belonging to the size group, a transform from multiple transforms comprising an alternative transform in addition to DCT and DST-VII is selected and applied to a current block. The alternative transform may correspond to DCT type IV (DCT-IV) or DST type IV (DST-IV).
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