会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 131. 发明授权
    • Electrophotographic lithograph printing plate material having a mixture
of sensitizing dyes
    • 具有敏感染料混合物的电子照相平版印刷材料
    • US5213930A
    • 1993-05-25
    • US783439
    • 1991-10-28
    • Masahiro YamanaKoji Sato
    • Masahiro YamanaKoji Sato
    • C09B23/00G03G5/06G03G5/09G03G13/28
    • G03G5/09G03G5/067
    • An electrophotographic lithograph printing plate material having an enhanced sensitivity to laser rays, an excellent heat resistance and a low dark decay comprises an electroconductive, water-resistant substrate and an electrophotographic layer comprising a photoconductive zinc oxide, a resinous binder and a sensitizing dye material which comprises at least one compound (A) of the formula (I) and at least one compound (B) of the formula (II): ##STR1## wherein each of A.sub.1 and A.sub.2 represents a C.sub.5-7 polymethine group non-substituted or substituted with at least one substituent, for example, --Cl, the substituted polymethine group may have a cyclic structure, for example, of: ##STR2## each of from B.sub.1 to B.sub.4 is a divalent non-substituted or substituted, benzene or naphthalene group, each of from X.sub.1 to X.sub.4 is a S, Se, or O atom or a --C(CH.sub.3).sub.2 -- group, each of from R.sub.1 to R.sub.4 is a C.sub.1-5 alkyl group, each of M.sub.1 and M.sub.5 is a metal atom, organic base or hydrogen atom, each of Y.sub.1 and Y.sub.2 is an anion, and m and n is zero or 1 but when n= 1, m= 1 and when n= 0, m= 0 and --R.sub.3 COO group adjacent to the (M.sub.1).sub.m group in the formula (II) is anionic, the weight ratio of the compound (A) to the compound (B) being 3:1 to 20:1.
    • 136. 发明授权
    • Control circuit for active type range finder
    • 主动式测距仪控制电路
    • US4497560A
    • 1985-02-05
    • US456789
    • 1983-01-10
    • Shinji NagaokaKoji Sato
    • Shinji NagaokaKoji Sato
    • G01C3/00G01C3/06G01S17/46G02B7/32G03B13/20G01C3/08G03B3/10
    • G03B13/20G01C3/06G01S17/48G02B7/32
    • An active type range finder has a light-emitting element which is pulsatively driven to project light pulses on an object to be photographed. A photodetector element receives the light reflected from the object and produces a photoelectric output signal proportional to the amount of received light. A light-shielding member is scanned over the light-sensitive surface of the photodetector element in correlation with the distance to the object so that the light-shielding member successively shields successive areas of the light-sensitive surface from receiving light. An a.c. amplifier amplifies the photoelectric output signal, and an integrating circuit integrates the amplified photoelectric output signal and produces an integrated d.c. signal having a negative peak value indicative of the position of the scanning light-shielding member which corresponds to the object distance. Detecting circuitry detects the negative peak value and provides a corresponding detection signal indicative of the object distance.
    • 有源式测距仪具有脉冲驱动的发光元件,以将要拍摄的物体上的光脉冲投影。 光电检测器元件接收从物体反射的光并产生与接收光量成比例的光电输出信号。 相对于与物体的距离,在光检测器元件的光敏表面上扫描遮光部件,使得遮光部件依次遮挡光敏面的连续区域而不受光的遮挡。 一个 放大器放大光电输出信号,并且积分电路将放大的光电输出信号进行积分,并产生集成的直流。 信号具有表示对应于物体距离的扫描光屏蔽部件的位置的负峰值。 检测电路检测负峰值,并提供指示对象距离的相应检测信号。