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    • 62. 发明授权
    • Automatic focus detection system
    • 自动对焦检测系统
    • US5175579A
    • 1992-12-29
    • US883928
    • 1992-05-12
    • Toru MatsuiHiroshi Ueda
    • Toru MatsuiHiroshi Ueda
    • G02B7/32
    • G02B7/32
    • An automatic focus detection system for use in a camera system comprises focus detecting unit having one light receiving element corresponding to, in an objective field, a focus detection area whose center is deviated from the optical axis of the objective lens, the position of the focus detection area being changed in accordance with the change of the focal length of the objective lens; and a light projecting unit for projecting light towards the object field so that the region of the projected light covers the focus detection area, if the position of the focus detection area is changed in accordance with the change of the focal length of the objective lens.
    • 用于照相机系统的自动对焦检测系统包括焦点检测单元,其具有在目标场中对应于其中心偏离物镜的光轴的焦点检测区域的一个光接收元件,焦点的位置 检测区域根据物镜的焦距的变化而改变; 以及如果根据物镜的焦距的变化改变焦点检测区域的位置,则投射光朝向物场投射,使得投影光的区域覆盖焦点检测区域的光投射单元。
    • 65. 发明授权
    • Decoration tree
    • 装饰树
    • US5043193A
    • 1991-08-27
    • US553665
    • 1990-07-18
    • Hiroshi Ueda
    • Hiroshi Ueda
    • A41G1/00A47G33/06
    • A41G1/00A41G1/007A47G33/06
    • A tree model is made of synthetic resin and surfaces of stem portion, branch portions and leaves of the tree model are covered with a green light emitting inorganic phosphor and additional decoration models to be mounted on the branch portions or leaves of the tree model are made of synthetic resin and are formed in a variety of models of various kinds of goods such as furits, bells and the like and the surfaces of the various models are covered with an inorganic phosphor emitting a variety of colors consisting of at least one kind chosen from a red light emitting phosphor, green light emitting phosphor and blue light emitting phosphor and these tree model and the additional decoration models are seen as white under the visible rays of light but the inorganic phosphor emits light when irradiated with ultraviolet rays, and the light emitting is taken place with color in red, green, blue, yellow, pink or orange according to kinds of the inorganic phosphor applied on the tree model and the additional decoration models, and under the visible rays of light and the irradiation of the ultraviolet rays, the same decoration goods show the entirely different colors which produce an interesting phenomenon of the colors to the viewers.
    • 树模型由合成树脂制成,树模型的树枝部分,分枝部分和叶子的表面被绿色发光无机磷光体覆盖,并且在树模型的分支部分或叶子上安装附加的装饰模型 的合成树脂,并且形成为各种各样的各种类型的产品,例如毛皮,铃铛等,并且各种型号的表面被发射各种颜色的无机磷光体覆盖,所述各种颜色由至少一种选自 红色发光荧光体,绿色发光荧光体和蓝色发光荧光体,并且这些树型模型和附加装饰模型在可见光线下被视为白色,但是当用紫外线照射时,无机荧光体发光,并且发光 根据应用于树模型和th上的无机磷光体的种类,以红色,绿色,蓝色,黄色,粉红色或橙色的颜色进行拍摄 额外的装饰模型,在可见光线和紫外线的照射下,相同的装饰物品显示出完全不同的颜色,给观众带来了有趣的颜色现象。
    • 69. 发明授权
    • Method of producing modified lead barium titanate ceramic useful as PTC
thermistor
    • 制造用作PTC热敏电阻的改性铅钛酸钡陶瓷的方法
    • US4960551A
    • 1990-10-02
    • US273811
    • 1988-11-21
    • Takamitsu EonomotoHiroshi UedaMidori KawaharaNaoki OkadaNoboru Murata
    • Takamitsu EonomotoHiroshi UedaMidori KawaharaNaoki OkadaNoboru Murata
    • C04B35/468C04B35/472H01C7/02
    • C04B35/4684C04B35/472H01C7/02
    • A modified lead barium titanate ceramic which has a fundamental composition of (Ba.sub.1-x-y Sb.sub.y Pb.sub.x)TiO.sub.3, where x is not greater than 0.9 and usually not smaller than 0.6 and y is from 0.001 to 0.1, and has a high positive temperature coefficient of resistivity (PTCR) over a range of temperature higher than about 350.degree. C. at the lower boundary, is produced by using a metal salt of an organic acid such as lead titanate salt of oxalic acid as the source of Pb and by adding at least one of BaCO.sub.3, SiO.sub.2, BN and TiO.sub.2 to the raw materials of the above fundamental composition. After thermally decomposing the organic acid metal salt the mixture of the raw materials including the additive(s) is compacted and sintered. By this method the sintering is achieved with good reproducibility and with little dissipation of lead, and the obtained titanate ceramic is good and durable in the PTCR characteristics and hence is useful as the material of a PTC thermistor functioning at medium-to-high temperatures.
    • 具有(Ba1-x-ySbBx)TiO3的基本组成的改性的铅钛酸钡陶瓷,其中x不大于0.9且通常不小于0.6,y为0.001至0.1,并且具有高的正温度系数 通过使用诸如草酸的钛酸铅的有机酸的金属盐作为Pb的来源,并且至少加入至少在下边界处于高于约350℃的温度范围内的电阻率(PTCR) 一种BaCO3,SiO2,BN和TiO2为原料的上述基本成分。 在分解有机酸金属盐之后,将包含添加剂的原料的混合物压实并烧结。 通过这种方法,以良好的再现性和铅的少量耗散实现烧结,并且所得钛酸陶瓷在PTCR特性中是良好和耐用的,因此可用作在中 - 高温度下工作的PTC热敏电阻的材料。