Image display device utilizing birefringence properties of ferroelectric
ceramic material
    1.
    发明授权
    Image display device utilizing birefringence properties of ferroelectric ceramic material 失效
    利用铁电陶瓷材料双折射性能的图像显示装置

    公开(公告)号:US4379621A

    公开(公告)日:1983-04-12

    申请号:US202658

    申请日:1980-10-31

    IPC分类号: G02F1/055 G02F1/03

    CPC分类号: G02F1/0555 G02F1/055

    摘要: An image display device comprises first and second polarizers having their planes of polarizations oriented at right angles to each other and an electrooptic plate of ferroelectric ceramic material interposed between the first and second polarizers. A matrix electrode arrangement is secured to one surface of the ceramic plate to cause crystallographic structural changes to occur under the influence of a locally generated electric field, so that light passing through the first polarizer is refracted by an amount proportional to the magnitude of the electric field and emerges from the second polarizer with an intensity proportional to the electric field. The electrode arrangement includes a plurality of row electrodes and a plurality of column electrodes to define a plurality of elemental picture areas. In each elemental area the electrode arrangement includes a diode, first parallel finger electrodes connected to a row electrode via the diode and second parallel finger electrodes connected to a column electrode and staggered relative to the first finger electrodes.

    摘要翻译: 图像显示装置包括第一偏振器和第二偏振器,其偏振平面彼此成直角定向,以及介于第一和第二偏振器之间的铁电陶瓷材料的电光板。 矩阵电极布置被固定在陶瓷板的一个表面上,以在局部产生的电场的影响下引起晶体结构变化,使得通过第一偏振器的光被折射与电的大小成比例的量 并且与第二偏振器以与电场成比例的强度出现。 电极布置包括多个行电极和多个列电极以限定多个元素图像区域。 在每个元件区域中,电极装置包括二极管,经由二极管连接到行电极的第一平行指状电极和连接到列电极并相对于第一指状电极交错的第二平行指状电极。

    Method of reading thermoluminescent dosimeter
    3.
    发明授权
    Method of reading thermoluminescent dosimeter 失效
    读取热发光剂量计的方法

    公开(公告)号:US4204119A

    公开(公告)日:1980-05-20

    申请号:US835341

    申请日:1977-09-21

    IPC分类号: G01T1/11

    CPC分类号: G01T1/11

    摘要: A method of thermoluminescent dosimetry employing infrared radiation heating of a dosimeter. An incandescent lamp is used for the source of infrared radiation. The dosimeter is provided with a infrared radiation absorbing layer connected thermally to a thermoluminescent material layer. The infrared radiation absorbing layer is irradiated with infrared radiation, so that thermoluminescent material is not directly irradiated. The lamp is initially powered whereby the dosimeter is heated by infrared radiation of such high intensity as to tend to cause a heat equilibrium in the dosimeter above the temperature where thermal radiation is generated from the dosimeter. Then the power supplied to the lamp is cut or decreased, so that the dosimeter is heated by the afterglow of the lamp. Therefore the rate of temperature rise of the dosimeter becomes quite slow in the latter half of heating process, whereby the temperature of dosimeter easily falls into the required range.

    摘要翻译: 使用剂量计的红外辐射加热的热发光剂量学方法。 白炽灯用于红外辐射源。 剂量计设有与热发光材料层热连接的红外辐射吸收层。 用红外辐射照射红外辐射吸收层,使得热发光材料不被直接照射。 灯最初被动力,由此剂量计被如此高强度的红外辐射加热,以便在剂量计上引起热量从剂量计产生热辐射的温度以上的热平衡。 然后,切断或减少提供给灯的功率,使得剂量计被灯的余辉加热。 因此,在加热过程的后半部分中,剂量计的温度上升速度变得相当慢,因此剂量计的温度容易落入所需范围内。

    Image converting and projecting method and apparatus for carrying out
the same
    4.
    发明授权
    Image converting and projecting method and apparatus for carrying out the same 失效
    图像转换和投影方法及其执行装置

    公开(公告)号:US4264193A

    公开(公告)日:1981-04-28

    申请号:US31142

    申请日:1979-04-18

    CPC分类号: G02F1/0558 G03C7/00

    摘要: A method of converting a color negative image into an inverted positive color image and an apparatus for carrying out the method. The image of the color negative film is decomposed into three images each in one of the three primary colors through associated color filters. The individual images thus produced are recorded in a light transmissive recording medium in inverted images, which are then illuminated by a light source disposed at a side in opposition to the negative film, whereby the inverted images are projected through the same optical system including the aforementioned color filters as the one used for the projection onto a screen as the inverted positive image. The recording medium is constituted by a light transmissive ceramic dielectric exhibiting a memory function. The inverted positive image may be projected at a magnified scale.

    摘要翻译: 将彩色负像转换成反转正色图像的方法以及用于执行该方法的装置。 通过相关的滤色器,将彩色底片的图像分解为三原色之一的三个图像。 这样产生的各个图像被记录在反转图像的透光记录介质中,然后由设置在与负片相对的一侧的光源照射,由此通过包括上述的相同的光学系统投影反转的图像 作为用于投影到屏幕上的滤色器作为反转正像。 记录介质由表现出记忆功能的透光陶瓷电介质构成。 反转正像可以以放大比例投影。

    Antireflection film
    7.
    发明授权
    Antireflection film 失效
    防反射膜

    公开(公告)号:US4738497A

    公开(公告)日:1988-04-19

    申请号:US783090

    申请日:1985-10-02

    摘要: An antireflection film composed of a layer of arsenic triselenide having an optical thickness in the range between 2.518 and 2.783 .mu.m, a layer of potassium chloride having an optical thickness in the range between 1.151 and 1.272 .mu.m and a layer of arsenic triselenide having an optical thickness in the range between 0.577 and 0.749 .mu.m which are successively formed on a member of infrared radiation transmitting material formed of a mixture of thalium iodide and thalium bromide. The member provided with the three-layer antireflection film is used in an atmosphere of protective gas, such as dry air or dry N.sub.2 gas.

    摘要翻译: 一种防反射膜,其由光致厚度在2.518和2.783μm之间的三层硒化物层组成,光学厚度在1.151和1.272μm之间的氯化钾层和具有 光学厚度在0.577和0.749μm之间的范围内,其依次形成在由碘化铊和溴化钡的混合物形成的红外辐射透射材料的构件上。 设置有三层抗反射膜的构件用于保护气体的气氛中,例如干燥空气或干燥的N 2气体。

    Infrared optical fiber, a method of manufacturing the same, and an
optical fiber cable using the same
    9.
    发明授权
    Infrared optical fiber, a method of manufacturing the same, and an optical fiber cable using the same 失效
    红外光纤,其制造方法和使用该光纤的光纤电缆

    公开(公告)号:US5076653A

    公开(公告)日:1991-12-31

    申请号:US568385

    申请日:1990-08-16

    摘要: An infrared optical fiber is disclosed which has a composition ratio of silver chloride and silver bromide in the range of 30 to 70 percent by weight of silver chloride, and has a diameter of 0.5 mm or less. The infrared optical fiber has great mechanical strength, so that it does not burn because of degradation in the laser beam transmission capability, even after 2,000 times of repetitive bending with a curvature radius of 20 mm, which is the condition necessary for use within the interior of a body, and it exhibits excellent radiant optical characteristics. In particular, an infrared optical fiber with a diameter of 0.35 mm or less is preferred, because such an infrared optical fiber withstands over 10,000 times of repetitive bending under the same condition as above and can therefore be repeatedly used many times. Also, by applying an appropriate load to the infrared optical fiber, the infrared optical fiber, which is of straight shape free from curving and which has excellent radiant optical characteristics, can be produced stably with a short manufacturing period of time. Furthermore, an optical fiber cable using such an infrared optical fiber, in which the infrared optical fiber is housed in a protective tube containing a dry inert gas, can be repeatedly used under wet conditions of high humidity and can be stored under ambient conditions for a long period of time.

    摘要翻译: 公开了一种红外线光纤,其氯化银和溴化银的组成比为氯化银的30〜70重量%,直径为0.5mm以下。 红外线光纤具有很大的机械强度,即使经过2000次的曲率半径为20mm的重复弯曲也是因为激光束透射能力的降低而不燃烧,这是内部使用的条件 的身体,它表现出优异的辐射光学特性。 特别地,直径为0.35mm以下的红外线光纤是优选的,因为这样的红外线光纤能够在与上述相同的条件下承受10,000次以上的重复弯曲,因此可以重复使用多次。 此外,通过对红外光纤施加适当的负载,可以在短的制造周期内稳定地制造直线形状不受弯曲且具有优异的辐射光学特性的红外线光纤。 此外,使用这样的红外光纤的光缆,其中红外光纤被容纳在含有干燥惰性气体的保护管中,可以在湿度高的湿度条件下重复使用,并且可以在环境条件下储存 很长一段时间