Non-absorptive electro-optical glazing structure employing composite infrared reflective polarizing filter
    1.
    发明授权
    Non-absorptive electro-optical glazing structure employing composite infrared reflective polarizing filter 失效
    采用复合红外反射偏振滤光片的非吸收型电光玻璃结构

    公开(公告)号:US06559903B2

    公开(公告)日:2003-05-06

    申请号:US09032302

    申请日:1998-02-27

    IPC分类号: G02F11335

    摘要: An electro-optical glazing structure having reflection and transparent modes of operation for selectively reflecting and transmitting electromagnetic radiation without absorption, respectively. The electro-optical glazing structure comprising: an electro-optical panel having first and second optical states of operation; a composite broad-band infrared (IR) reflective polarizing filter structure of electrically-passive construction, mounted to the electro-optical panel; and an optical state switching mechanism for switching the electro-optical panel to the first optical state of operation in order to induce the electro-optical glazing structure into the reflection mode of operation, and for switching the electro-optical panel to the second optical state of operation in order to induce the electro-optical glazing structure into the transparent mode of operation. When the electro-optical panel is switched to the first optical state of operation, electromagnetic radiation within a first prespecified bandwidth falling incident upon the electro-optical panel is reflected from the electro-optical panel without absorption. When the electro-optical panel is switched to the second optical state of operation, electromagnetic radiation within a second prespecified bandwidth falling incident upon the electro-optical panel is transmitted through the electro-optical panel without absorption. By virtue of the present invention, the glazing structure is capable of providing both thermal insulation as well as privacy functions.

    摘要翻译: 一种具有反射和透明工作模式的电光玻璃结构,分别用于选择性地反射和传输无吸收的电磁辐射。 该电光玻璃结构包括:具有第一和第二光学操作状态的电光面板; 一种电动被动结构的复合宽带红外(IR)反射型偏振滤光器结构,安装在电光面板上; 以及用于将电光学面板切换到第一光学状态的光学状态切换机构,以便将电光玻璃结构引入反射操作模式,并且将电光学面板切换到第二光学状态 的操作,以便将电光玻璃结构引入透明操作模式。 当电光面板切换到第一光学操作状态时,入射到电光面板的第一预定带宽内的电磁辐射从电光面板反射而不吸收。 当电光面板切换到第二光学操作状态时,入射在电光面板上的第二预定带宽内的电磁辐射通过电光面板传输而不吸收。 凭借本发明,玻璃窗结构能够提供隔热以及隐私功能。

    Coloring media having improved brightness and color characteristics

    公开(公告)号:US06753044B2

    公开(公告)日:2004-06-22

    申请号:US08890320

    申请日:1997-07-09

    申请人: Sadeg M. Faris Le Li

    发明人: Sadeg M. Faris Le Li

    IPC分类号: G02F11335

    摘要: Disclosed are novel reflective microflakes for use in making “additive-primary” coloring media having improved reflection characteristics over the red, green and blue super-bright color characteristics, and “super-white” coloring media having Magnesium-Oxide like color characteristics. The coloring media of the present invention provides a palette of colors for imparting color characteristics or forming color images upon surfaces of arbitrary surface geometry. In the preferred embodiments of the invention, the microflakes are made from cholesteric liquid crystal (CLC) material, wherein the pitch of the helices of the liquid crystal molecules in each CLC microflake varies along the thickness dimension (i.e. transverse to the surface) thereof. Depending on the final spiral structure of the materials utilized, the CLC circularly polarizing materials reflect either left-handed or right-handed circularly polarized light. In a preferred embodiment, each CLC microflake of additive-primary coloring media has a laminated construction in order that both the upper and lower surfaces thereof have substantially the same reflection characteristics over its tuned reflection band. Also, each CLC microflake of super-white coloring media has a laminated construction in order that both the upper and lower surfaces thereof have substantially the same reflection characteristics over its broadband reflection band. The super-white and additive-primary coloring media of the present invention can be used to produce virtually any color. By virtue of the circularly polarizing reflection characteristics of the CLC microflakes, the resulting coloring media can be used to form polarization-encoded spatially multiplexed images (SMI) on radiation absorbing surfaces, to produce stereoscopic 3-D images when viewed through electrically-passive polarization glasses. The coloring media may also be used in 2-D and 3-D xerographic printing processes.

    Method and system for producing color images with improved brightness and color characteristics on radiation absorptive surfaces
    10.
    发明授权
    Method and system for producing color images with improved brightness and color characteristics on radiation absorptive surfaces 失效
    用于产生具有改善的辐射吸收表面的亮度和颜色特性的彩色图像的方法和系统

    公开(公告)号:US06404464B1

    公开(公告)日:2002-06-11

    申请号:US08898658

    申请日:1997-07-22

    申请人: Sadeg M. Faris Le Li

    发明人: Sadeg M. Faris Le Li

    IPC分类号: G02F11335

    摘要: Disclosed is an improved method and apparatus for forming color images on radiation absorptive surfaces, having improved brightness and color characteristics. The apparatus can be realized in various forms, including Xeroxgraphic and ink-jet printing equipment. In the illustrative embodiments, color images composed from polarization-encoded perspective images are produced for use in stereoscopic viewing full-color 3-D objects represented therein using a pair of electrically-passive circularly-polarizing eyeglasses. Super-white and additive-primary coloring media is used to form the polarization-encoded composite images so that full depth of color (e.g. thousands of color values) is imparted to the 3-D objects graphically represented therein. The coloring media utilized embodies both broadband and spectrally-tuned CLC-based microflakes having symmetrical reflection characteristics which provide for improved brightness and color uniformity characteristics.

    摘要翻译: 公开了一种用于在辐射吸收表面上形成彩色图像的改进的方法和装置,具有改善的亮度和颜色特性。 该设备可以以各种形式实现,包括Xeroxgraphic和喷墨打印设备。 在说明性实施例中,由偏振编码的透视图像组成的彩色图像是使用一对电动被动圆偏振眼镜在其中表示的立体观看全色3-D物体中产生的。 使用超白色和添加剂 - 初级着色介质来形成偏振编码的合成图像,使得全部深度的颜色(例如数千个颜色值)被赋予其中图形表示的3-D物体。 使用的着色介质体现了具有对称反射特性的宽带和频谱调谐的基于CLC的微片,其提供了改进的亮度和颜色均匀性特征。