Holographically-formed polymer dispersed liquid crystals with multiple gratings
    1.
    发明授权
    Holographically-formed polymer dispersed liquid crystals with multiple gratings 失效
    具有多个光栅的全息形成的聚合物分散液晶

    公开(公告)号:US06538775B1

    公开(公告)日:2003-03-25

    申请号:US09398964

    申请日:1999-09-16

    IPC分类号: G03H102

    摘要: A multicolored reflection liquid crystal display device includes a pair of substrates having a reflective holographic polymer dispersed liquid crystal (H-PDLC) film disposed therebetween. The H-PDLC film contains at least two different reflection gratings capable of reflecting two different wavelengths of light. A multicolored reflection H-PDLC is obtained by simultaneously illuminating a plurality of regions of a film comprised of a mixture of a liquid crystal and a photo-polymerizable monomer with a plurality of holographic light patterns capable of providing liquid crystal layers of different spacings so as to obtain different reflection gratings in each of the regions. A mask is placed between each of the laser light beams and the film to form a pattern of light and dark regions on the film. Each mask is positioned such that at least one light region of a first beam pair coincides with at least one dark region of a second beam pair within the film. A multiple grating liquid crystal display device including an H-PDLC film having a first region comprising liquid crystal and matrix polymer layers forming a transmission grating and a second region comprising liquid crystal and matrix polymer layers forming a reflection grating capable of reflecting a preselected wavelength of light also is described.

    摘要翻译: 多彩反射液晶显示装置包括一对基板,其具有设置在其间的反射全息聚合物分散液晶(H-PDLC)膜。 H-PDLC膜包含能够反射两种不同波长的光的至少两种不同的反射光栅。 通过同时用能够提供不同间隔的液晶层的多个全息光图案同时照射由液晶和可光聚合单体的混合物组成的膜的多个区域来获得多色反射H-PDLC,从而 以在每个区域中获得不同的反射光栅。 在每个激光束和膜之间放置掩模以在膜上形成光和暗区域的图案。 每个掩模被定位成使得第一光束对的至少一个光区与膜内的第二光束对的至少一个暗区重合。 一种多光栅液晶显示装置,包括具有包括液晶的第一区域和形成透射光栅的基质聚合物层的H-PDLC膜,以及包含液晶的第二区域和形成能够反射预选波长的反射光栅的基质聚合物层 光也被描述。

    Reflective liquid crystal strain gauge with aspected particles and polarization-sensitive devices
    2.
    发明授权
    Reflective liquid crystal strain gauge with aspected particles and polarization-sensitive devices 失效
    反射型液晶应变计,带有极化颗粒和偏振敏感元件

    公开(公告)号:US06778236B1

    公开(公告)日:2004-08-17

    申请号:US09584875

    申请日:2000-06-01

    IPC分类号: G02F11333

    摘要: A reflective strain gauge includes an holographically-formed polymer dispersed liquid crystal (H-PDLC) film comprising layers of liquid crystal (LC) droplets in a matrix polymer, the H-PDLC film having a reflection or transmission grating capable of reflecting or transmitting light of a selected wavelength, and means for adhering the film to a surface of a workpiece for monitoring the strain at said surface. A change in the nature of the reflected light is an indication of strain. Also included is a polarizing material having an holographically-formed polymer dispersed liquid crystal (H-PDLC) film comprising layers of liquid crystal (LC) droplets in a matrix polymer, the H-PDLC film having a reflection grating capable of reflecting light of a selected wavelength, wherein the reflection grating of the H-PDLC film is oriented, such that the refractive index parallel to said axis of orientation (ne) is greater than the refractive index perpendicular to said axis (no).

    摘要翻译: 反射应变计包括在基质聚合物中包含液晶(LC)液滴层的全息形成的聚合物分散液晶(H-PDLC)膜,该H-PDLC膜具有能够反射或透射光的反射或透射光栅 以及用于将膜粘附到工件的表面以用于监测所述表面处的应变的装置。 反射光的性质的变化表明了应变。 还包括具有在基质聚合物中包含液晶(LC)液滴层的全息形成的聚合物分散液晶(H-PDLC)膜的偏振材料,所述H-PDLC膜具有能够反射光的反射光栅 选择的波长,其中H-PDLC膜的反射光栅被定向,使得平行于所述取向轴(ne)的折射率大于垂直于所述轴线(no)的折射率。

    LED lighting system
    3.
    发明授权
    LED lighting system 有权
    LED照明系统

    公开(公告)号:US08836243B2

    公开(公告)日:2014-09-16

    申请号:US13863589

    申请日:2013-04-16

    IPC分类号: H05B37/02 H05B33/08

    摘要: A system and method involving lighting fixtures, a control network, a controller and other devices such as light sensors, input devices and network adapters for coordinating precise brightness and color schedules among the lighting fixtures while maintaining a high color reliability including provisions for managing a plurality of lighting fixtures. The lighting fixtures contain lighting elements selected such that when controlled properly, operating along a daytime locus, the resultant light output closely resembles sunlight on a cloudless day in spectral characteristics, and wherein the total flux of blue light can be adjusted from a relative level of 1-100% the maximum blue flux of the lighting fixture by controlling individual lighting elements.

    摘要翻译: 一种涉及照明灯具的系统和方法,控制网络,控制器以及诸如光传感器,输入设备和网络适配器的其他设备,用于协调照明设备之间的精确亮度和颜色调度,同时保持高的颜色可靠性,包括用于管理多个 的照明灯具。 照明灯具包含照明元件,其被选择为使得当被适当地控制时,沿日间轨迹操作,所得到的光输出在光谱特性的无云日非常类似于阳光,并且其中蓝光的总通量可以从相对水平 通过控制单个照明元件,照明灯具的最大蓝色通量为1-100%。

    TUNABLE ELECTRO-OPTIC FILTER STACK
    6.
    发明申请
    TUNABLE ELECTRO-OPTIC FILTER STACK 有权
    TUNABLE电光滤波器堆叠

    公开(公告)号:US20140354996A1

    公开(公告)日:2014-12-04

    申请号:US13881608

    申请日:2011-10-29

    摘要: A holographic polymer dispersed liquid crystal (HPDLC) tunable filter exhibits switching times of no more than 20 microseconds. The HPDLC tunable filter can be utilized in a variety of applications. An HPDLC tunable filter stack can be utilized in a hyperspectral imaging system capable of spectrally multiplexing hyperspectral imaging data acquired while the hyperspectral imaging system is airborne. HPDLC tunable filter stacks can be utilized in high speed switchable optical shielding systems, for example as a coating for a visor or an aircraft canopy. These HPDLC tunable filter stacks can be fabricated using a spin coating apparatus and associated fabrication methods.

    摘要翻译: 全息聚合物分散液晶(HPDLC)可调谐滤光器的开关时间不超过20微秒。 HPDLC可调谐滤波器可用于各种应用。 HPDLC可调谐滤波器堆叠可以用于能够在高光谱成像系统空中传输时获取的高光谱成像数据的光谱复用的高光谱成像系统。 HPDLC可调谐滤波器叠层可用于高速可切换光屏蔽系统,例如作为遮阳板或航空器罩盖的涂层。 这些HPDLC可调滤波器叠层可以使用旋涂装置和相关的制造方法制造。

    TRANSPARENT CONFORMAL POLYMER ANTENNAS FOR RFID AND OTHER WIRELESS COMMUNICATIONS APPLICATIONS
    7.
    发明申请
    TRANSPARENT CONFORMAL POLYMER ANTENNAS FOR RFID AND OTHER WIRELESS COMMUNICATIONS APPLICATIONS 有权
    RFID和其他无线通信应用的透明一致的聚合物天线

    公开(公告)号:US20130194148A1

    公开(公告)日:2013-08-01

    申请号:US13266303

    申请日:2010-04-27

    IPC分类号: H01Q1/38

    摘要: An optically transparent conformal polymer antenna and a method for producing the antenna from optically transparent conductive polymers. The method includes selecting an antenna design; providing an optically transparent conductive polymer material capable of being printed using an ink jet printer device; and printing layers of the polymer in the desired antenna design pattern onto a substrate. The surface tension of the polymer solution is adjusted to allow the material to pass through a printer head for printing on a flexible substrate. The material is modified to have a higher conductivity than regular conductive polymer materials so that a suitable antenna may be formed.

    摘要翻译: 光学透明的保形聚合物天线和由光学透明导电聚合物制造天线的方法。 该方法包括选择天线设计; 提供能够使用喷墨打印机装置打印的光学透明导电聚合物材料; 并将所需的天线设计图案中的聚合物层印刷到基底上。 调节聚合物溶液的表面张力,以使材料通过打印头以在柔性基底上印刷。 该材料被修改为具有比常规导电聚合物材料更高的导电性,使得可以形成合适的天线。

    Sterilizing mats and methods of using the same

    公开(公告)号:US11723995B2

    公开(公告)日:2023-08-15

    申请号:US17186469

    申请日:2021-02-26

    IPC分类号: A61L2/10 A61L2/26 G02B6/42

    摘要: Sterilizing devices, preferably foot mats, comprise: a support member having an arrangement structure and a plurality of UV light emitting members, where the support member is configured for total internal reflection of UV light from the UV light emitting members; a power source providing power to the plurality of UV light emitting members; and a translucent substrate having an upper surface and a lower surface; wherein the translucent substrate is disposed above the support member such that the lower surface of the translucent substrate can be brought into contact with an upper region of the support member when a downward force is applied to the upper surface of the translucent substrate; and wherein the contact between the lower surface of the translucent substrate and the support member breaks the total internal reflection in the area of contact such that UV light is emitted through the translucent substrate.

    Sterilizing Mats and Methods of Using the Same

    公开(公告)号:US20210268134A1

    公开(公告)日:2021-09-02

    申请号:US17186469

    申请日:2021-02-26

    IPC分类号: A61L2/10 G02B6/42 A61L2/26

    摘要: Sterilizing devices, preferably foot mats, comprise: a support member having an arrangement structure and a plurality of UV light emitting members, where the support member is configured for total internal reflection of UV light from the UV light emitting members; a power source providing power to the plurality of UV light emitting members; and a translucent substrate having an upper surface and a lower surface; wherein the translucent substrate is disposed above the support member such that the lower surface of the translucent substrate can be brought into contact with an upper region of the support member when a downward force is applied to the upper surface of the translucent substrate; and wherein the contact between the lower surface of the translucent substrate and the support member breaks the total internal reflection in the area of contact such that UV light is emitted through the translucent substrate.