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    • 41. 发明授权
    • Focus detecting device
    • 对焦检测装置
    • US4560864A
    • 1985-12-24
    • US727194
    • 1985-04-29
    • Takao KinoshitaTakashi KawabataKazuya HosoeTokuichi TsunekawaToshio Sakane
    • Takao KinoshitaTakashi KawabataKazuya HosoeTokuichi TsunekawaToshio Sakane
    • G02B7/36G02B27/40G01J1/20
    • G02B7/36G02B27/40
    • In the device disclosed, an image formed by an optical system is scanned by an image sensor composed of independently arranged photoelectric transducing elements to produce an image scanning signal. A detecting circuit detects the variation of the brightness between the adjacent image elements as a measure of the sharpness of the image and the focus of the optical system. The focus detection accuracy is improved by non-linear transformation of the brightness variation signal with a non-linear transformation circuit that weighs the brightness variation signal on the basis of the signal level. A signal forming circuit detects the difference between the outputs of transducing elements and adds the differences to produce a comparator signal when a predetermined relationship is reached between the sharpness indication and the addition signal. An indicator indicates that the focusing condition cannot be discerned in response to the comparison signal and a control inhibits the output of the detection circuit to the indicator prior to the addition signal.
    • 在所公开的装置中,通过由独立设置的光电转换元件构成的图像传感器来扫描由光学系统形成的图像,以产生图像扫描信号。 检测电路检测相邻图像元件之间的亮度的变化,作为图像的清晰度和光学系统的焦点的量度。 通过基于信号电平对亮度变化信号进行称重的非线性变换电路对亮度变化信号进行非线性变换来提高焦点检测精度。 当在锐度指示和加法信号之间达到预定的关系时,信号形成电路检测转换元件的输出之间的差异,并且增加差值以产生比较器信号。 指示符表示响应比较信号不能识别聚焦条件,并且控制在加法信号之前禁止检测电路对指示符的输出。
    • 44. 发明授权
    • Radiation sensing system
    • 辐射传感系统
    • US4495415A
    • 1985-01-22
    • US442783
    • 1982-11-18
    • Takashi Kawabata
    • Takashi Kawabata
    • H04N5/235H04N5/335H04N5/341H04N5/353H04N5/372H04N5/378G01J5/00
    • H04N5/2357H04N5/235
    • Disclosed is a radiation sensing system including signal accumulating type radiation sensor device having at least one radiation sensing element responsive to a radiation to produce an electrical signal, a presetting circuit for presetting the time for the accumulation of the signal by the sensor device, a first control circuit for dividing the signal accumulating time preset by the presetting circuit into a plurality of time sections discontinuous, namely, having separating periods interposed therebetween, and causing the sensor device to effect the accumulation of the produced signal of the sensing element only during each time section, and a second control circuit for reading out the accumulated signal from the sensor device after termination of the signal accumulation by the plurality of time sections.
    • 公开了一种辐射感测系统,其包括信号累积型辐射传感器装置,其具有响应于辐射的至少一个辐射感测元件以产生电信号;预置电路,用于预先设定由传感器装置累积信号的时间;第一 控制电路,用于将由预置电路预设的信号累积时间分成多个不连续的时间部分,即分离周期介于其间,并且使得传感器装置仅在每次时间内实现感测元件的产生信号的累积 以及第二控制电路,用于在多个时间段的信号累积结束之后读出来自传感器装置的累积信号。
    • 47. 发明授权
    • Focus detection system
    • 焦点检测系统
    • US4333716A
    • 1982-06-08
    • US98514
    • 1979-11-29
    • Toshio SakaneKazuya HosoeTokuichi TsunekawaTakao KinoshitaTakashi Kawabata
    • Toshio SakaneKazuya HosoeTokuichi TsunekawaTakao KinoshitaTakashi Kawabata
    • G03B13/36G01C3/32G02B7/38G03B7/099
    • G02B7/38G01C3/32
    • Disclosed is a focus detecting system in which first and second signals corresponding to image forming states at first and second positions each almost at the same distance before and behind a predetermined focal plane of an image forming optical system are obtained. A third signal corresponding to an image forming state at a third position different from the first and the second positions is also obtained. The in-focus state of the image formed by the image forming optical system is detected on the basis of a first comparison signal obtained by comparing the first and the second signals with each other, a second comparison signal obtained by comparing the first and the third signals with each other and a third comparison signal obtained by comparing the second and the third signals with each other.
    • 公开了一种焦点检测系统,其中获得对应于在成像光学系统的预定焦平面之前和之后几乎相同距离的第一和第二位置处的图像形成状态的第一和第二信号。 还获得与不同于第一和第二位置的第三位置处的图像形成状态对应的第三信号。 基于通过将第一和第二信号彼此进行比较而获得的第一比较信号来检测由图像形成光学系统形成的图像的对焦状态,通过比较第一和第三信号获得的第二比较信号 彼此之间的信号和通过将第二和第三信号彼此进行比较而获得的第三比较信号。
    • 48. 发明申请
    • STENT
    • US20130138204A1
    • 2013-05-30
    • US13814939
    • 2011-08-10
    • Seichin KinutaTakashi Kawabata
    • Seichin KinutaTakashi Kawabata
    • A61F2/82
    • A61F2/82A61F2/91A61F2/915A61F2002/91575A61F2230/0013A61L31/022
    • A stent that is extremely useful in practice, with excellent proof stress (elastic limit stress).The stent (1) is in a tubular shape that is expandable in a radial direction, the stent being placed in a tubular vessel of a living body. The stent (1) is formed of a main stent element (2) that is formed at an imaginary cylinder surface. The main stent element (2) is fabricated of an alloy with a proof stress of from 500 to 2700 MPa, or is fabricated of an electroformed alloy with a repetition fatigue strength at least 1.5 times the strength of a nickel member or a nickel/cobalt alloy member, which is an alloy containing any of gold, silver, copper, nickel, cobalt and palladium. Therefore, the stent (1) may be easily and uniformly expanded in the radial direction, and is not easily crushed in the radial direction after being expanded.
    • 在实践中非常有用的支架,具有优异的抗张力(弹性极限应力)。 支架(1)呈可径向扩张的管状,支架置于生物体的管状容器中。 支架(1)由形成在假想气缸表面的主支架元件(2)形成。 主支架元件(2)由具有500至2700MPa的有限应力的合金制成,或由电铸合金制成,其重复疲劳强度为镍构件或镍/钴的强度的至少1.5倍 合金构件,其是含有金,银,铜,镍,钴和钯中的任何一种的合金。 因此,支架(1)可以在径向方向上容易且均匀地扩张,并且在扩张后不容易在径向方向被破碎。