会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明申请
    • PROJECTION SYSTEM
    • 投影系统
    • WO2012161824A1
    • 2012-11-29
    • PCT/US2012/026768
    • 2012-02-27
    • 3M INNOVATIVE PROPERTIES COMPANYLIU, Yufeng
    • LIU, Yufeng
    • H04N13/04
    • H04N13/363H04N13/324H04N13/337H04N13/341
    • A projection system is disclosed. The projection system includes a projector that sequentially emits first images having a first polarization state for viewing by a left eye and second images having the first polarization state for viewing by a right eye. The projection system further includes a front projection screen that scatters the sequentially emitted first and second images. The front projection screen reflects light having the first polarization state, and absorbs light having a second polarization state, where the second polarization state is perpendicular to the first polarization state. The projection system also includes a viewing device that includes a first shutter that is synchronized with the projector and transmits the first, but not the second, images scattered by the front projection screen. The viewing device also includes a second shutter that is synchronized with the projector and transmits the second, but not the first, images scattered by the front projection screen. Each of the first and second shutters has a pass axis that lies along the first polarization axis and a block axis that lies along the second polarization axis.
    • 公开了一种投影系统。 该投影系统包括:投影机,其依次发射具有用于左眼观看的第一偏振状态的第一图像和具有第一偏振状态的第二图像,以便通过右眼观看。 投影系统还包括分散顺序地发射的第一和第二图像的前投影屏幕。 前投影屏幕反射具有第一偏振态的光,并且吸收具有第二偏振状态的光,其中第二偏振状态垂直于第一偏振状态。 投影系统还包括观察装置,其包括与投影仪同步的第一快门,并且透射第一而不是第二个由前投影屏散射的图像。 观看装置还包括与投影仪同步的第二快门,并且透射第二而不是第一个由前投影屏散射的图像。 第一和第二百叶窗中的每一个都具有沿着第一偏振轴位于的通过轴线和位于第二偏振轴上的块轴线。
    • 6. 发明申请
    • FRONT PROJECTION SCREEN WITH HIGH CONTRAST
    • 具有高对比度的前投影屏幕
    • WO2010080775A1
    • 2010-07-15
    • PCT/US2010/020176
    • 2010-01-06
    • 3M INNOVATIVE PROPERTIES COMPANYLIU, YuFeng,YUST, David, T.,JORDAN, Myron, K.,OUDERKIRK, Andrew, J.,
    • LIU, YuFeng,YUST, David, T.,JORDAN, Myron, K.,OUDERKIRK, Andrew, J.,
    • G03B21/56
    • G03B21/56
    • A light diffusing optical construction is disclosed. The optical construction includes an asymmetric optical diffuser that scatters light in a first direction with a first viewing angle A H, and in a second direction orthogonal to the first direction with a second viewing angle A V . The ratio A H /A V is at least about 2. The optical construction also includes a substantially specular reflector that reflects light that is not scattered by the asymmetric optical diffuser. The substantially specular reflector has a first average reflectance R o in the visible at a substantially zero incident angle and a second average reflectance R 45 in the visible at a substantially 45 degree incident angle. The ratio R o /R 45 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.
    • 公开了一种光散射光学结构。 该光学结构包括一个不对称的光学漫射器,其以第一视角AH在第一方向散射光,并在第二方向上以第二视角AV与第一方向垂直。 比例AH / AV至少为2.光学结构还包括基本上镜面的反射器,其反射不被非对称光学漫射器散射的光。 基本上镜面的反射器在可见光中具有基本为零入射角的第一平均反射率Ro和可见光以大致45度入射角的第二平均反射率R45。 比率Ro / R45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。