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11 条记录 (耗时 0.014 秒)

    Rigid electro-optic device using a transparent ferroelectric ceramic element
    1.
    发明授权
    Rigid electro-optic device using a transparent ferroelectric ceramic element 失效
    刚性电光器件采用透明铁电陶瓷元件

    公开(公告)号：US4201450A

    公开(公告)日：1980-05-06

    申请号：US893195

    申请日：1978-04-03

    申请人： Giorgio B. Trapani

    发明人： Giorgio B. Trapani

    IPC分类号： G02F1/055 ,  G02F1/05 ,  G02C7/12

    CPC分类号： G02F1/0551 ,  G02F1/0556

    摘要： A rigidly bonded electro-optic phase retardation device comprising a transparent, electrically induced ferroelectric ceramic element bonded with a rigid adhesive in sandwich-like configuration between transparent sheet elements, such as glass, or polarizer elements is described. The electro-optic phase retardation device, provided with means for applying an electric field across at least a portion of the induced ferroelectric ceramic element, can be utilized as a birefringent optical device for controllable modulation of polarized light passing through the device. The device is bonded with an adhesive material, such as a cross-linked unsaturated polyester, effective to provide a rigid boundary between the ceramic material and the sheet elements thereof and exhibits rapid optical response speed in the switching from a field-induced birefringent mode to an isotropic zero-field condition. The device is thus suited to application in welding plates, glasses, goggles, helmets and similar devices for controlling the transmission of light radiations to the wearer's eyes, particularly in the prevention of flashblindness.

    摘要翻译： 描述了一种刚性粘合的电光相位延迟装置，其包括以透明片材元件（例如玻璃或偏光元件）之间的夹心状构造与刚性粘合剂结合的透明电感应铁电陶瓷元件。 电光相位差装置具有用于在感应铁电陶瓷元件的至少一部分上施加电场的装置，可用作双折射光学装置，用于可控地调制通过该装置的偏振光。 该装置与诸如交联的不饱和聚酯之类的粘合剂材料粘合，有效地在陶瓷材料和其片材元件之间提供刚性边界，并且在从场致双折射模式切换到快速光学响应速度 各向同性零场条件。 因此，该装置适用于焊接板，眼镜，护目镜，头盔和类似装置，用于控制向穿戴者眼睛的光辐射的传输，特别是防止闪光。

    Light polarizing film
    4.
    发明授权
    Light polarizing film 失效
    光偏振片

    公开(公告)号：US07339736B2

    公开(公告)日：2008-03-04

    申请号：US11277656

    申请日：2006-03-28

    申请人： Giorgio B. Trapani ,  Pradnya V. Nagarkar

    发明人： Giorgio B. Trapani ,  Pradnya V. Nagarkar

    IPC分类号： G02B5/30

    CPC分类号： G02B5/3083 ,  G02B5/305

    摘要： A light polarizing film and method of making same includes a linear polarizer having a first surface and a second surface and having a polarization direction, an optical retarder comprising a simultaneously biaxially oriented polypropylene film disposed adjacent to the first surface of the linear polarizer and having an axis oriented at an angle with respect to the polarization direction, and an adhesive layer disposed between the first surface of the linear polarizer and the optical retarder and having a minimum adhesion strength of about 25 grams per inch.

    摘要翻译： 光偏振膜及其制造方法包括具有第一表面和第二表面并具有偏振方向的线性偏振器，光学延迟器包括与线偏振器的第一表面相邻设置的同时双轴取向的聚丙烯膜，并且具有 以及粘合剂层，其设置在线性偏振片的第一表面和光学延迟器之间，并具有约25克/英寸的最小粘附强度。

    Light polarizing film and method of making same
    5.
    发明授权
    Light polarizing film and method of making same 有权
    光偏振膜及其制造方法

    公开(公告)号：US07088511B2

    公开(公告)日：2006-08-08

    申请号：US10365333

    申请日：2003-02-12

    申请人： Giorgio B. Trapani ,  Pradnya V. Nagarkar

    发明人： Giorgio B. Trapani ,  Pradnya V. Nagarkar

    IPC分类号： G02B5/30

    CPC分类号： G02B5/3083 ,  G02B5/305

    摘要： A light polarizing film and method of making same includes a linear polarizer having a first surface and a second surface and having a polarization direction, an optical retarder comprising a simultaneously biaxially oriented polypropylene film disposed adjacent to the first surface of the linear polarizer and having an axis oriented at an angle with respect to the polarization direction, and an adhesive layer disposed between the first surface of the linear polarizer and the optical retarder and having a minimum adhesion strength of about 25 grams per inch.

    摘要翻译： 光偏振膜及其制造方法包括具有第一表面和第二表面并具有偏振方向的线性偏振器，光学延迟器包括与线偏振器的第一表面相邻设置的同时双轴取向的聚丙烯膜，并且具有 以及粘合剂层，其设置在线性偏振片的第一表面和光学延迟器之间，并具有约25克/英寸的最小粘附强度。

    Synthetic UV-bleached polarizer and method for the manufacture thereof
    6.
    发明授权
    Synthetic UV-bleached polarizer and method for the manufacture thereof 失效
    合成紫外线漂白偏振片及其制造方法

    公开(公告)号：US5925289A

    公开(公告)日：1999-07-20

    申请号：US879640

    申请日：1997-06-20

    申请人： John J. Cael ,  Robert L. Jones ,  Rong-Chang Liang ,  Giorgio B. Trapani ,  Tung-Feng Yeh

    发明人： John J. Cael ,  Robert L. Jones ,  Rong-Chang Liang ,  Giorgio B. Trapani ,  Tung-Feng Yeh

    IPC分类号： G02B5/30 ,  F21V9/14

    CPC分类号： G02B5/3033

    摘要： A visible range synthetic light polarizing element is provided, the optical and polarizing properties thereof having been selectively effected by regulated exposure of said polarizing element to ultraviolet irradiation. The ultraviolet irradiation can be either polarized or non-polarized, but in either case, is at intensities greater than that produced incidentally or by ambient ultraviolet irradiation sources. The resultant light-polarizing element is characterized by its heightened luminous transmittance, an improvement accomplished without departure from good polarization efficiency (i.e., greater than 99.9%).

    摘要翻译： 提供了可见光范围的合成光偏振元件，其光学和偏振特性已经通过所述偏振元件的调节曝光选择性地进行紫外线照射。 紫外线照射可以是极化的或非极化的，但是在任一种情况下，其强度大于偶然产生的强度或环境紫外线照射源的强度。 所得到的光偏振元件的特征在于其增加的透光率，改进完成而不偏离良好的偏振效率（即大于99.9％）。

    METHOD OF MAKING AN INTRINSIC POLARIZER
    8.
    发明申请
    METHOD OF MAKING AN INTRINSIC POLARIZER 审中-公开
    制造内置极化器的方法

    公开(公告)号：US20090163686A1

    公开(公告)日：2009-06-25

    申请号：US11960775

    申请日：2007-12-20

    申请人： Michael K. Gerlach ,  Gerald N. Nkwantah ,  Giorgio B. Trapani ,  Pradnya V. Nagarkar ,  Phillip J. Ralli

    发明人： Michael K. Gerlach ,  Gerald N. Nkwantah ,  Giorgio B. Trapani ,  Pradnya V. Nagarkar ,  Phillip J. Ralli

    IPC分类号： B29D7/01 ,  C08F10/00

    CPC分类号： B29C55/026 ,  B29C55/06 ,  B29K2029/04 ,  B29K2995/0034

    摘要： An integrated wet stretch method of making an intrinsic polarizer includes the following steps in order: providing a polymeric film comprising poly(vinyl alcohol) and having an original length; immersing the polymeric film in a first bath comprising a first solution having a pH of less than about 3; uniaxially stretching the first polymeric film in the machine direction thereby forming a stretched polymeric film; removing the stretched polymeric film from the first bath; removing excess first solution from the stretched polymeric film; and uniaxially stretching the stretched polymeric film in the machine direction, at a temperature of at least about 120° C., thereby forming a further stretched polymeric film.

    摘要翻译： 制备本征偏振片的整体湿拉伸方法包括以下步骤：提供包含聚（乙烯醇）并具有原始长度的聚合物膜; 将聚合物膜浸入包含pH小于约3的第一溶液的第一浴中; 在机器方向单轴拉伸第一聚合物膜，从而形成拉伸的聚合物膜; 从第一浴中除去拉伸的聚合物膜; 从拉伸的聚合物膜中除去过量的第一溶液; 并在至少约120℃的温度下沿机器方向单轴拉伸拉伸的聚合物膜，由此形成另外的拉伸聚合物膜。

    High-efficiency K-sheet polarizer
    10.
    发明授权
    High-efficiency K-sheet polarizer 失效
    高效率K片偏光片

    公开(公告)号：US5666223A

    公开(公告)日：1997-09-09

    申请号：US565877

    申请日：1995-12-01

    申请人： Stewart Bennett ,  John J. Cael ,  Narendra S. Kadaba ,  Giorgio B. Trapani

    发明人： Stewart Bennett ,  John J. Cael ,  Narendra S. Kadaba ,  Giorgio B. Trapani

    IPC分类号： B29C55/02 ,  B29K29/00 ,  B29L7/00 ,  B29L11/00 ,  C08J5/18 ,  C08L53/00 ,  G02B5/30 ,  B29C55/04 ,  G02B1/00

    CPC分类号： G02B5/3033 ,  Y10S428/91

    摘要： This invention relates to a new and improved light-polarizing sheet comprising molecularly oriented polyvinyl alcohol containing an oriented block segments of polyvinylene and said polyvinyl alcohol. In particular, the polarizing sheet comprises a polyvinylalcohol/polyvinylene block copolymer material wherein the polyvinylene blocks thereof are formed by molecular dehydration of a sheet of polyvinylalcohol; said sheet of polyvinylalcohol/polyvinylene block copolymer material comprising a uniform distribution of light-polarizing molecules of polyvinylalcohol/polyvinylene block copolymer material varying in the length, n, of the conjugated repeating vinylene unit of the polyvinylene block of the copolymer throughout the range of from 2 to 24; the concentration of each of said polyvinylene blocks, as determined by the absorption of wavelengths ranging from 200 to 700 nm remaining relatively constant, the degree of orientation of said light-polarizing molecules, as measured by the spectral dichroic ratio, R.sub.D, of said blocks, increasing throughout said range with increasing length, n, of said polyvinylene blocks; said polyvinylene block concentration and said degree of orientation of said molecules imparting to said sheet a photopic dichroic ratio, R.sub.D, of at least approximately 45.

    摘要翻译： 本发明涉及一种新的和改进的光偏振片，其包含分子取向的聚乙烯醇，其含有聚乙烯和所述聚乙烯醇的取向嵌段。 特别地，偏光片包括聚乙烯醇/聚乙烯嵌段共聚物材料，其中聚亚乙烯基嵌段通过一片聚乙烯醇的分子脱水形成; 所述聚乙烯醇/聚亚乙烯基嵌段共聚物材料片材包含聚乙烯醇/聚乙烯嵌段共聚物材料的光偏振分子的均匀分布，所述聚偏二乙烯醇/聚亚乙烯基嵌段共聚物材料在共聚物的聚亚乙烯基嵌段的共轭重复亚乙烯基单元的长度n的不同范围内， 2至24; 通过200-700nm范围内的波长吸收所确定的所述聚亚乙烯基嵌段的浓度保持相对恒定，通过所述嵌段的光谱二向色比RD测量所述光偏振分子的取向度 在所述范围内随所述聚亚乙烯嵌段的长度增加n而增加; 所述聚乙烯嵌段浓度和所述分子赋予所述片材的取向度至少约为45的显色剂二色性比RD。