Method of preparing silica glass
    62.
    发明授权
    Method of preparing silica glass 失效
    制备石英玻璃的方法

    公开(公告)号:US5236483A

    公开(公告)日:1993-08-17

    申请号:US969540

    申请日:1992-10-30

    IPC分类号: C03B19/12 C03B37/016

    摘要: A method for preparing a silica glass article of improved purity is provided. The article is prepared by a sol-gel method and is then heat treated to a selected temperature between about 1500.degree. and 2200.degree. C. and maintained at the selected temperature for a predetermined period of time sufficient to remove silica crystals, inclusions, microcracks and bubbles. The resulting silica glass articles have improved purity and can be used as photomask substrates or as preforms for optical fibers.

    摘要翻译: 提供了一种制备纯度提高的石英玻璃制品的方法。 该制品通过溶胶 - 凝胶法制备,然后热处理至约1500℃至2200℃的选定温度,并在选定温度下保持足以除去二氧化硅晶体,夹杂物,微裂纹的预定时间 气泡。 所得的二氧化硅玻璃制品具有提高的纯度,并且可以用作光掩模基材或用于光纤的预成型体。

    Illumination device and display device using it
    64.
    发明授权
    Illumination device and display device using it 有权
    照明装置和使用它的显示装置

    公开(公告)号:US06742907B2

    公开(公告)日:2004-06-01

    申请号:US10431541

    申请日:2003-05-08

    IPC分类号: F21V704

    摘要: An illumination device is provided of the type arranged at the front which is of low power consumption and of high recognisability both when the illumination is turned on and when illumination is turned off. An illumination device arranged at the front face of an illuminated object has a light-guide plate forming a transparent flat plate shape and formed with point-form optical extraction structures on its surface or in a position facing this surface, and a light source arranged opposite and end face of this light-guide plate. The light source is for example a point light source. The optical extraction structures are for example pillar-shaped projections and these are arranged two-dimensionally. The function is provided that, when this illumination device is arranged at the front of the illuminated body, rays are projected on to the illuminated body and rays reflected by the illuminated body are transmitted with scarcely any dispersion. There is also provided a function of transmitting external light with scarcely any dispersion of rays reflected by the illuminated body when the illumination is not turned on. A point light source such as a light emitting diode (LED) or electric light bulb can be employed and low power consumption can easily be achieved.

    摘要翻译: 设置在前面的类型的照明装置,其在照明被打开和照明被关闭时都具有低功率消耗和高可识别性。 布置在被照明物体的正面的照明装置具有形成透明平板形状的导光板,在其表面或面向该表面的位置形成有点状光学提取结构, 和该导光板的端面。 光源例如是点光源。 光学提取结构例如是柱状突起,并且它们被二维布置。 提供的功能是,当该照明装置布置在被照射体的前部时,射线投射到照射体上,被照射体反射的射线几乎不发散。 还提供了当照明未被打开时透射外部光并且被照明体反射的光线几乎不分散的功能。 可以采用诸如发光二极管(LED)或电灯泡的点光源,并且可以容易地实现低功耗。

    Method for manufacturing transmission screen and transmission screen

    公开(公告)号:US06621637B2

    公开(公告)日:2003-09-16

    申请号:US10069756

    申请日:2002-02-28

    IPC分类号: G02B2710

    CPC分类号: G03B21/625

    摘要: A method of producing a transmissive screen having a structure including light-absorption-material patterns formed on locations corresponding to locations of lens members, which are provided side by side on a light-transmissive substrate, and to locations of boundary portions between the corresponding lens members. In the method, lens compositions are discharged onto and are caused to land on the light transmissive substrate, and, by drops of the lens compositions, very small lens members or precursors thereof are formed. It is possible to provide a method of producing a transmissive screen, which makes it possible to realize at a low cost a bright transmissive screen which has high contrast ratio and which can display a high-quality image having no moiré and no speckles.

    Input tablet and liquid crystal display device utilizing such tablet
    66.
    发明授权
    Input tablet and liquid crystal display device utilizing such tablet 失效
    使用这种片剂的输入片和液晶显示装置

    公开(公告)号:US06264343B1

    公开(公告)日:2001-07-24

    申请号:US08969790

    申请日:1997-11-13

    IPC分类号: F21V704

    摘要: A cost-effective and simple construction of an easy to see and bright digitizer tablet with a two-dimensional illuminating function having a light source for radiating a bundle of light, and light-guide means having a light entering face into which said bundle of light enters, which guides said bundle of light towards the light-emitting face, to illuminate the illuminated body. A liquid crystal display device including this digitizer tablet is also provided. The light-guide contains a flat, transparent light-guide body with a face vertical to said light entering face as said light-emitting face, wherein a protrusion made of a substantially parallel bottom face and a substantially perpendicular side face to said light-emitting face is formed integrally with said light-emitting face. The protrusion may also be formed of a plurality of rib-shaped protruding bodies. The ratio between the width and height of each of these protruding bodies is roughly 1:1.

    摘要翻译: 一种具有二维照明功能的易于观看和明亮的数字化仪平板电脑的经济有效和简单的结构,具有用于照射一束光的光源,以及具有光进入面的光导装置,所述光束 进入,其将所述光束引向发光面,以照亮被照亮的身体。 还提供了包括该数字转换器片的液晶显示装置。 导光体包括平坦的,透明的导光体,其具有与所述光进入面垂直的面作为所述发光面,其中由基本上平行的底面和与所述发光面基本垂直的侧面形成的突起 面与所述发光面一体形成。 突起也可以由多个肋状突出体形成。 这些突出体的宽度和高度之间的比率大致为1:1。

    Ink jet recording head and process for producing the same
    68.
    发明授权
    Ink jet recording head and process for producing the same 失效
    喷墨记录头及其制造方法

    公开(公告)号:US5502470A

    公开(公告)日:1996-03-26

    申请号:US927386

    申请日:1992-09-23

    IPC分类号: B41J2/16 B41J2/135

    摘要: The present invention provides an ink jet recording head for use in an ink jet recording device, wherein a water-repellent layer (21) comprising a homogeneous layer of a fluoropolymer is formed on the surface of a nozzle for jetting an ink. This water-repellent layer can be formed as a dense, homogeneous layer through the use of a solvent-soluble fluoropolymer, which enables an ink jet recording head excellent in the water-repellent property, the persistence of the water repellency and the durability.

    摘要翻译: PCT No.PCT / JP92 / 00109 Sec。 371日期:1992年9月23日 102(e)日期1992年9月23日PCT提交1992年2月4日PCT公布。 出版物WO92 / 本发明提供一种用于喷墨记录装置的喷墨记录头,其中在喷嘴的表面上形成包括含氟聚合物的均匀层的防水层(21) 喷墨。 该防水层可以通过使用溶剂可溶性含氟聚合物形成为致密均匀的层,这使得喷墨记录头具有优异的防水性能,防水性的持久性和耐久性。