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    Composition for optical materials and use thereof
    61.
    发明授权
    Composition for optical materials and use thereof 失效
    用于光学材料的组合物及其用途

    公开(公告)号：US5756766A

    公开(公告)日：1998-05-26

    申请号：US822687

    申请日：1997-03-24

    申请人： Nobuya Kawauchi ,  Katsuyoshi Sasagawa ,  Seiichi Kobayashi

    发明人： Nobuya Kawauchi ,  Katsuyoshi Sasagawa ,  Seiichi Kobayashi

    IPC分类号： C07C323/45 ,  C07D339/08 ,  C08G18/38 ,  C08G18/77 ,  G02B1/04 ,  C07C265/00

    CPC分类号： C08G18/775 ,  C07C323/45 ,  C07D339/08 ,  C08G18/3876 ,  G02B1/041

    摘要： A composition for optical materials is herein disclosed which comprises the following two components (a) and (b): (a) a component containing at least one of poly isocyanates represented by the formula (1) ##STR1## wherein A is an alkanediyl group or an alkanetetrayl group which may contain a sulfur atom, or a dithianetetrayl group, and the alkanediyl group or the alkanetetrayl group may be substituted by a phenyl group; B is a methylene chain represented by .paren open-st.CH.sub.2 .paren close-st..sub.m (m is an integer of 1 to 4) which may contain a sulfur atom, and B's may be the same or different; and n is an integer of 2 or 4, and (b) a component containing at least one of polythiols having two or more mercapto groups. The composition is useful to provide optical products such as plastic lenses, filters, substrates for recording media and optical fibers which have a very high refractive index and which are excellent in heat resistance.

    摘要翻译： 本文公开了一种用于光学材料的组合物，其包含以下两种组分（a）和（b）：（a）含有由式（1）A（SBNCO）n（1）表示的聚异氰酸酯中的至少一种的组分，其中 A是可以含有硫原子的烷二基或烷基四
    氮杂基团，或二硫杂萘基，并且烷二基或者烷基四氮杂基可以被苯基取代; B是可以含有硫原子的+545CH2 +546μm（m为1〜4的整数）表示的亚甲基，B可以相同或不同， n为2或4的整数，（b）含有具有两个以上巯基的多硫醇中的至少一种的成分。 该组合物可用于提供诸如塑料透镜，滤光器，用于记录介质的基底和具有非常高的折射率并且耐热性优异的光纤的光学产品。

    Endoscope output signal control device and endoscope apparatus making use of the same
    64.
    发明授权
    Endoscope output signal control device and endoscope apparatus making use of the same 失效
    使用内窥镜输出信号控制装置和内窥镜装置

    公开(公告)号：US4928172A

    公开(公告)日：1990-05-22

    申请号：US244777

    申请日：1988-09-15

    申请人： Masao Uehara ,  Akinobu Uchikubo ,  Katsuyuki Saito ,  Masahide Kanno ,  Jun Hasegawa ,  Masahiko Sasaki ,  Katsuyoshi Sasagawa ,  Shinji Yamashita

    发明人： Masao Uehara ,  Akinobu Uchikubo ,  Katsuyuki Saito ,  Masahide Kanno ,  Jun Hasegawa ,  Masahiko Sasaki ,  Katsuyoshi Sasagawa ,  Shinji Yamashita

    IPC分类号： A61B1/05 ,  H04N5/225 ,  H04N5/235

    CPC分类号： H04N5/2352 ,  A61B1/05 ,  H04N2005/2255

    摘要： An endoscope using a solid state imaging device characterized by comprising a solid state imaging device capable of imaging an object image, a light emitting means giving an illuminating light to said object, a first level detecting means fed with a video signal from said solid state imaging device and detecting the level of this signal, a first level comparing means comparing the detected level of this detecting means and a preset first reference level with each other and outputting a first control signal corresponding to the level difference, a light adjusting means fed with this first control signal and adjusting the illuminating light from said light emitting means on the basis of this signal, a gain variable amplifying means taking in the video signal from the detecting end in said first level detecting means and amplifying it, a second level detecting means detecting the level of the signal from this amplifying means and a circuit means comparing the detected level of this detecting means and a preset second reference level with each other, forming a second control signal corresponding to the level difference and making this signal a gain controlling signal to said amplifying means.

    摘要翻译： 一种使用固态成像装置的内窥镜，其特征在于，包括能够对被摄体图像进行成像的固态成像装置，向所述被摄体赋予照明光的发光装置，具有来自所述固态摄像机的视频信号的第一电平检测装置 装置并检测该信号的电平;第一电平比较装置，将检测装置的检测电平与预先设定的第一参考电平进行比较，并输出对应于电平差的第一控制信号;馈送该电平差的光调节装置 第一控制信号，并且基于该信号调整来自所述发光装置的照明光;增益可变放大装置，从所述第一电平检测装置中的检测端接收视频信号并对其进行放大;第二电平检测装置检测 来自该放大装置的信号的电平和比较检测到的该检测电平的电路装置 形成与所述电平差对应的第二控制信号，并使所述信号成为所述放大装置的增益控制信号。