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1. 发明授权

US08220932B2 Dry erasable projection article and system 有权
标题翻译：干式可擦式投影物品和系统
公开(公告)号：US08220932B2
公开(公告)日：2012-07-17
申请号：US12684565
申请日：2010-01-08
申请人： Yufeng Liu , Encai Hao , David T. Yust , Lan H. Liu , Frederick J. Gustafson , Willem V. Bastiaens , Yu Yang
发明人： Yufeng Liu , Encai Hao , David T. Yust , Lan H. Liu , Frederick J. Gustafson , Willem V. Bastiaens , Yu Yang
IPC分类号： G03B21/26 , G03B21/28 , G03B21/56 , G03B21/60 , G02B27/14 , G02F1/1335 , H01K1/26 , F21V9/14 , B43L1/00
CPC分类号： G03B21/56
摘要： A communication article and system comprising a writing member having a dry erasable front surface and a projection member is disclosed. The projection member includes an asymmetric optical diffuser that scatters light in a first direction with a first viewing angle AH, and in a second direction orthogonal to the first direction with a second viewing angle AV. The ratio AH/AV is at least about 2.
摘要翻译：公开了一种包括具有干燥可擦除前表面和突出构件的书写构件的通信物品和系统。所述突出部件包括使第一方向的光以第一视角AH散射的第二方向和与第一方向正交的第二方向的第二视角AV的非对称光漫射体。 AH / AV的比例至少约为2。

2. 发明申请

US20130101816A1 MULTILAYER OPTICAL FILM 有权
标题翻译：多层光学膜
公开(公告)号：US20130101816A1
公开(公告)日：2013-04-25
申请号：US13638269
申请日：2011-06-22
申请人： Yufeng Liu , David T. Yust , Stephen A. Johnson
发明人： Yufeng Liu , David T. Yust , Stephen A. Johnson
IPC分类号： G02B1/04 , G02B5/30
CPC分类号： G02B1/04 , B32B7/02 , B32B27/08 , B32B27/36 , B32B2250/42 , B32B2307/418 , B32B2457/202 , B32B2551/00 , G02B5/0841 , G02B5/305 , Y10T428/24942
摘要： Multilayer optical film that can be used as a reflective polarizer or mirror is disclosed. The multilayer optical film comprises alternating optical layers of polyesters such as PET and PEN, copolymerized with 4,4′-biphenyl dicarboxylate. The multilayer optical film exhibits a high ratio of in-plane to out-of-plane birefringence.
摘要翻译：公开了可用作反射偏振器或反射镜的多层光学膜。多层光学膜包括聚酯如PET和PEN的交替光学层，与4,4'-联苯二羧酸酯共聚。多层光学膜表现出高的平面内平面双折射比。

3. 发明申请

US20110051040A1 THICK POLYESTER FILMS FOR OPTICAL ARTICLES AND OPTICAL ARTICLES 审中-公开
标题翻译：用于光学文章和光学文章的厚聚酯薄膜
公开(公告)号：US20110051040A1
公开(公告)日：2011-03-03
申请号：US12933176
申请日：2009-03-19
申请人： Stephen A. Johnson , Yufeng Liu , David T. Yust
发明人： Stephen A. Johnson , Yufeng Liu , David T. Yust
IPC分类号： G02F1/13357 , B32B3/00 , B32B27/36 , B32B3/10 , B29D11/00
CPC分类号： B29C55/12 , B29K2067/00 , B29K2995/0032 , B32B3/085 , B32B7/02 , B32B27/08 , B32B27/36 , B32B2250/244 , B32B2270/00 , B32B2307/412 , B32B2307/42 , B32B2307/518 , B32B2457/202 , C08J5/18 , C08J2367/02 , G02B5/3083 , G02F1/133606 , G02F2001/133607 , Y10T428/24612 , Y10T428/266
摘要： In one embodiment, the invention provides a polyethylene terephthalate film comprising a biaxially oriented and birefringent film polyethylene terephthalate film having at least one layer having a thickness of from 10 mils (0.25 mm) to 25 mils (0.64 mm), wherein the film is formed from a polyethylene terephthalate resin comprising the reaction product of dimethyl terephthalate, terephthalic acid, or a combination thereof ethylene glycol, a diol or triol monomer other than ethylene glycol and from 0.9 to 3 mol percent of a sulfonate monomer having an inorganic counterion based on 100 mol percent dimethyl terephthalate, terephthalic acid, or a combination thereof.
摘要翻译：在一个实施方案中，本发明提供了一种聚对苯二甲酸乙二醇酯膜，其包含具有至少一层厚度为10密耳（0.25mm）至25密耳（0.64mm））的双轴取向和双折射膜聚对苯二甲酸乙二醇酯膜，其中所述膜形成由包含对苯二甲酸二甲酯，对苯二甲酸或其组合的乙二醇，除了乙二醇以外的二醇或三醇单体的反应产物的聚对苯二甲酸乙二醇酯树脂和0.9至3mol％的无机抗衡离子的磺酸酯单体基于100 摩尔％对苯二甲酸二甲酯，对苯二甲酸或其组合。

4. 发明授权

US09477011B2 Multilayer optical film 有权
标题翻译：多层光学膜
公开(公告)号：US09477011B2
公开(公告)日：2016-10-25
申请号：US13638269
申请日：2011-06-22
申请人： Yufeng Liu , David T. Yust , Stephen A. Johnson
发明人： Yufeng Liu , David T. Yust , Stephen A. Johnson
IPC分类号： G02B1/04 , B32B7/02 , B32B27/08 , B32B27/36 , G02B5/08 , G02B5/30
CPC分类号： G02B1/04 , B32B7/02 , B32B27/08 , B32B27/36 , B32B2250/42 , B32B2307/418 , B32B2457/202 , B32B2551/00 , G02B5/0841 , G02B5/305 , Y10T428/24942
摘要： Multilayer optical film that can be used as a reflective polarizer or mirror is disclosed. The multilayer optical film comprises alternating optical layers of polyesters such as PET and PEN, copolymerized with 4,4′-biphenyl dicarboxylate. The multilayer optical film exhibits a high ratio of in-plane to out-of-plane birefringence.
摘要翻译：公开了可用作反射偏振器或反射镜的多层光学膜。多层光学膜包括聚酯如PET和PEN的交替光学层，与4,4'-联苯二羧酸酯共聚。多层光学膜表现出高的平面内平面双折射比。

5. 发明授权

US08922888B2 Front projection screen with high contrast 有权
标题翻译：前置投影屏高对比度
公开(公告)号：US08922888B2
公开(公告)日：2014-12-30
申请号：US13503883
申请日：2010-11-19
申请人： Yufeng Liu , David T. Yust
发明人： Yufeng Liu , David T. Yust
IPC分类号： G03B21/56
CPC分类号： G03B21/56
摘要： A light diffusing optical construction is disclosed. The optical construction includes a symmetric optical diffuser that scatters light in a first direction with a first viewing angle AH and in a second direction orthogonal to the first direction with a second viewing angle AV, where AV is substantially equal to AH. The symmetric optical diffuser includes an optically transparent first layer and a plurality of randomly arranged optically transparent beads partially embedded in the first layer leaving portions of the beads exposed. The optical construction also includes a specular reflector that reflects light that is not scattered by the symmetric optical diffuser. The specular reflector has a first average reflectance Ro in the visible at zero incident angle and a second average reflectance R60 in the visible at 60 degree incident angle. Ro/R60 is at least about 1.5. The optical construction also includes a light absorbing layer that absorbs light that is not reflected by the specular reflector.
摘要翻译：公开了一种光散射光学结构。光学结构包括对称光学漫射器，其以第一视角AH在第一方向上散射光，并且在与第一方向正交的第二方向上具有第二视角AV，其中AV基本上等于AH。对称光学漫射器包括光学透明的第一层和多个随机布置的光学透明珠，其部分地嵌入第一层中，留下珠的一部分露出。光学结构还包括反射不被对称光漫射器散射的光的镜面反射器。镜面反射体在零入射角可见中具有第一平均反射率Ro，在60度入射角处具有可见的第二平均反射率R60。 Ro / R60至少约为1.5。光学结构还包括吸收未被镜面反射体反射的光的光吸收层。

6. 发明申请

US20120224150A1 FRONT PROJECTION SCREEN WITH HIGH CONTRAST 有权
标题翻译：具有高对比度的前投影屏幕
公开(公告)号：US20120224150A1
公开(公告)日：2012-09-06
申请号：US13503883
申请日：2010-11-19
申请人： Yufeng Liu , David T. Yust
发明人： Yufeng Liu , David T. Yust
IPC分类号： G03B21/60 , G03B21/28 , G02B5/02
CPC分类号： G03B21/56
摘要： A light diffusing optical construction is disclosed. The optical construction includes a symmetric optical diffuser that scatters light in a first direction with a first viewing angle AH and in a second direction orthogonal to the first direction with a second viewing angle AV, where AV is substantially equal to AH. The symmetric optical diffuser includes an optically transparent first layer and a plurality of randomly arranged optically transparent beads partially embedded in the first layer leaving portions of the beads exposed. The optical construction also includes a specular reflector that reflects light that is not scattered by the symmetric optical diffuser. The specular reflector has a first average reflectance Ro in the visible at zero incident angle and a second average reflectance R60 in the visible at 60 degree incident angle. Ro/R60 is at least about 1.5. The optical construction also includes a light absorbing layer that absorbs light that is not reflected by the specular reflector.
摘要翻译：公开了一种光散射光学结构。光学结构包括对称光学漫射器，其以第一视角AH在第一方向上散射光，并且在与第一方向正交的第二方向上具有第二视角AV，其中AV基本上等于AH。对称光学漫射器包括光学透明的第一层和多个随机布置的光学透明珠，其部分地嵌入第一层中，留下珠的一部分露出。光学结构还包括反射不被对称光漫射器散射的光的镜面反射器。镜面反射体在零入射角可见中具有第一平均反射率Ro，在60度入射角处具有可见的第二平均反射率R60。 Ro / R60至少约为1.5。光学结构还包括吸收未被镜面反射体反射的光的光吸收层。

7. 发明申请

US20110222263A1 HIGH TRANSMISSION FLUX LEVELING MULTILAYER OPTICAL FILM AND RELATED CONSTRUCTIONS 审中-公开
标题翻译：高传输通量水平多层光学膜和相关构造
公开(公告)号：US20110222263A1
公开(公告)日：2011-09-15
申请号：US13129468
申请日：2009-11-17
申请人： Michael F. Weber , Timothy J. Nevitt , Stephen A. Johnson , Yufeng Liu , David T. Yust
发明人： Michael F. Weber , Timothy J. Nevitt , Stephen A. Johnson , Yufeng Liu , David T. Yust
IPC分类号： F21V9/14 , G02B5/30
CPC分类号： G02B5/305 , B32B3/08 , B32B7/02 , B32B27/08 , B32B27/302 , B32B27/32 , B32B2250/24 , B32B2307/412 , B32B2307/416 , B32B2307/418 , B32B2307/514 , B32B2307/518 , B32B2307/52 , B32B2307/5825 , B32B2307/584 , B32B2551/00 , G02F2001/133507
摘要： A reflective film includes microlayers arranged into optical repeat units, each optical repeat unit including a negatively birefringent microlayer. The microlayers are tailored to provide the film with on-axis polarizing properties, such that normally incident light polarized along a block axis is substantially reflected and normally incident light polarized along a pass axis is substantially transmitted. On-axis transmission for the block axis may be 70%. The microlayers also provide the film with angularly dependent polarizing properties: p-polarized light incident in a block plane of incidence is substantially reflected at near-normal angles but substantially transmitted at an oblique angle. The film transmits unpolarized light incident in this plane more strongly at the oblique angle than at normal. The films can be used in direct-lit backlights, luminaires, and similar lighting systems for flux leveling to promote spatial brightness uniformity.
摘要翻译：反射膜包括布置成光学重复单元的微层，每个光学重复单元包括负双折射微层。微层被定制以提供具有轴上偏振特性的膜，使得沿着块轴偏振的正常入射光被基本反射，并且通常沿着通过轴偏振的入射光基本上被透射。块轴的轴向传动可能<20％，而传动轴的轴上传动可能> 70％。微层还为膜提供具有角度依赖的偏振性质：入射在块平面中的p偏振光基本上在近似的角度反射，但基本上以倾斜角传播。该膜以比正常情况下更倾斜地倾斜入射在该平面中的非偏振光。这些胶片可用于直射式背光源，灯具和类似的照射系统，用于助焊剂流平，以促进空间亮度均匀性。

8. 发明授权

US09069136B2 Optical stack having birefringent layer of optically symmetrical crystallites 有权
标题翻译：具有光学对称晶体的双折射层的光学堆叠
公开(公告)号：US09069136B2
公开(公告)日：2015-06-30
申请号：US13638765
申请日：2011-06-13
申请人： Michael F. Weber , Yufeng Liu , Stephen A. Johnson , David T. Yust
发明人： Michael F. Weber , Yufeng Liu , Stephen A. Johnson , David T. Yust
IPC分类号： G02B5/30
CPC分类号： G02B5/3083 , G02B5/305
摘要： An optical stack (400) having a plurality of alternating polymeric layers (401, 402) is described. The alternating layers may be alternating birefringent (syndiotactic polystyrene, sPS) and isotropic (CoPENa) layers, or alternating positively and negatively birefringent layers. Birefringent layers are made using polymers which form optically symmetrical crystallites upon stretching of the polymer. The optical stack has a large refractive index difference in the x-direction (the stretching direction) and small refractive index differences in the y- and z-directions (the non-stretching directions). The optical stack can be made using standard film tentering methods and may be a multilayer reflective polarizer.
摘要翻译：描述了具有多个交替聚合层（401,402）的光学堆叠（400）。交替层可以是交替的双折射（间同立构聚苯乙烯，sPS）和各向同性（CoPENa）层，或交替的正负双折射层。使用在聚合物拉伸时形成光学对称微晶的聚合物制备双折射层。光学叠层在x方向（拉伸方向）上的折射率差大，y方向和z方向（非拉伸方向）的折射率差小。光学堆叠可以使用标准薄膜拉制方法制成，并且可以是多层反射偏振器。

9. 发明申请

US20130100530A1 OPTICAL STACK HAVING BIREFRINGENT LAYER OF OPTICALLY SYMMETRICAL CRYSTALLITES 有权
标题翻译：具有光学对称晶体的双层光学堆叠
公开(公告)号：US20130100530A1
公开(公告)日：2013-04-25
申请号：US13638765
申请日：2011-06-13
申请人： Michael F. Weber , Yufeng Liu , Stephen A. Johnson , David T. Yust
发明人： Michael F. Weber , Yufeng Liu , Stephen A. Johnson , David T. Yust
IPC分类号： G02B5/30
CPC分类号： G02B5/3083 , G02B5/305
摘要： An optical stack (400) having a plurality of alternating polymeric layers (401, 402) is described. The alternating layers may be alternating birefringent (syndiotactic polystyrene, sPS) and isotropic (CoPENa) layers, or alternating positively and negatively birefringent layers. Birefringent layers are made using polymers which form optically symmetrical crystallites upon stretching of the polymer. The optical stack has a large refractive index difference in the x-direction (the stretching direction) and small refractive index differences in the y- and z-directions (the non-stretching directions). The optical stack can be made using standard film tentering methods and may be a multilayer reflective polarizer.
摘要翻译：描述了具有多个交替聚合层（401,402）的光学堆叠（400）。交替层可以是交替的双折射（间同立构聚苯乙烯，sPS）和各向同性（CoPENa）层，或交替的正负双折射层。使用在聚合物拉伸时形成光学对称微晶的聚合物制备双折射层。光学叠层在x方向（拉伸方向）上的折射率差大，y方向和z方向（非拉伸方向）的折射率差小。光学堆叠可以使用标准薄膜拉制方法制成，并且可以是多层反射偏振器。

10. 发明授权

US08012571B2 Optical film comprising birefringent naphthalate copolyester having branched or cyclic C4-C10 alkyl units 有权
标题翻译：包含具有支链或环状C 4 -C 10烷基单元的双折射萘二甲酸酯共聚酯的光学膜
公开(公告)号：US08012571B2
公开(公告)日：2011-09-06
申请号：US12114109
申请日：2008-05-02
申请人： Yufeng Liu , David T. Yust , Stephen A. Johnson , Kristopher J. Derks
发明人： Yufeng Liu , David T. Yust , Stephen A. Johnson , Kristopher J. Derks
IPC分类号： B32B7/00 , B32B7/02 , B32B27/08 , B32B27/30
CPC分类号： B32B27/36 , B32B7/02 , B32B27/08 , B32B27/285 , B32B2250/24 , B32B2307/30 , B32B2307/308 , B32B2307/40 , B32B2307/416 , B32B2307/418 , B32B2307/42 , B32B2307/50 , B32B2307/718 , B32B2457/202 , B32B2551/00 , B32B2551/08 , C08G63/189 , G02B1/04 , G02B5/3083 , Y10T428/24942 , Y10T428/31786 , C08L67/02
摘要： The present invention relates to multilayer optical films and birefringent copolyester films. The birefringent copolyester optical layer or birefringent copolyester film comprises a major amount of naphthalate units, ethylene units, and a minor amount of branched or cyclic C4 to C10 alkyl units. Also described are certain copolyester polymeric materials further comprising subunits of a phthalate ionomer such as dimethyl sulfosodium isophthtalate ionomer.
摘要翻译：本发明涉及多层光学膜和双折射共聚酯膜。双折射共聚酯光学层或双折射共聚酯膜包括主要量的萘二甲酸酯单元，乙烯单元和少量的支链或环状C 4至C 10烷基单元。还描述了进一步包含邻苯二甲酸酯离聚物如二甲基间苯二甲酸间二异氰酸酯离聚物的亚基的某些共聚酯聚合物。

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