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    • 1. 发明授权
    • Optical displacement detection mechanism and surface information measurement device using the same
    • 光学位移检测机构和表面信息测量装置使用相同
    • US07973942B2
    • 2011-07-05
    • US11841445
    • 2007-08-20
    • Masato IyokiHiroyoshi YamamotoKazutoshi WatanabeMasatsugu Shigeno
    • Masato IyokiHiroyoshi YamamotoKazutoshi WatanabeMasatsugu Shigeno
    • G01B11/14G01B11/30G01N21/55G01N23/00G01N21/86G21K7/00G01V8/00G01Q20/02
    • G01B11/024G01Q20/02
    • There is provided an optical displacement detection mechanism in which, even if a measurement object changes, a detection sensitivity and a ratio of a noise are adjustable without depending on optical characteristics such as reflectivity, or a shape and mechanical characteristics of a measurement object, an influence of a thermal deformation of the measurement object by an irradiated light to the measurement object can be made small, and a measurement accuracy can be ensured under optimum conditions. In an optical displacement detection mechanism comprising a light source irradiating a light to a cantilever becoming the measurement object, a light source drive circuit driving the light source, a photodetector receiving the light after irradiated to the cantilever from the light source to thereby detect an intensity of the light, and an amplifier amplifying a detection signal of the photodetector at a predetermined amplification rate, there is made such that, by providing a light intensity regulator and an amplification rate regulator, an irradiated light intensity to the cantilever and an amplification rate of the photodetector can be made variable.
    • 提供了一种光学位移检测机构,其中即使测量对象改变,检测灵敏度和噪声比可以调节,而不依赖于诸如反射率的光学特性或测量对象的形状和机械特性, 可以使通过照射光将测量对象的热变形对测量对象的影响减小,并且可以在最佳条件下确保测量精度。 在包括将光照射到作为测量对象的悬臂的光源的光学位移检测机构中,驱动光源的光源驱动电路,从光源照射到悬臂的光接收器,其接收光,从而检测强度 以及以预定的放大率放大光检测器的检测信号的放大器,通过提供光强度调节器和放大率调节器,对悬臂的照射光强度和放大率 可以使光电检测器变得可变。
    • 2. 发明申请
    • Optical Displacement Detection Mechanism and Surface Information Measurement Device Using the Same
    • 光学位移检测机构及其表面信息测量装置
    • US20080049236A1
    • 2008-02-28
    • US11841445
    • 2007-08-20
    • Masato IyokiHiroyoshi YamamotoKazutoshi WatanabeMasatsugu Shigeno
    • Masato IyokiHiroyoshi YamamotoKazutoshi WatanabeMasatsugu Shigeno
    • G01B11/14
    • G01B11/024G01Q20/02
    • There is provided an optical displacement detection mechanism in which, even if a measurement object changes, a detection sensitivity and a ratio of a noise are adjustable without depending on optical characteristics such as reflectivity, or a shape and mechanical characteristics of a measurement object, an influence of a thermal deformation of the measurement object by an irradiated light to the measurement object can be made small, and a measurement accuracy can be ensured under optimum conditions. In an optical displacement detection mechanism comprising a light source irradiating a light to a cantilever becoming the measurement object, a light source drive circuit driving the light source, a photodetector receiving the light after irradiated to the cantilever from the light source to thereby detect an intensity of the light, and an amplifier amplifying a detection signal of the photodetector at a predetermined amplification rate, there is made such that, by providing a light intensity regulator and an amplification rate regulator, an irradiated light intensity to the cantilever and an amplification rate of the photodetector can be made variable.
    • 提供了一种光学位移检测机构,其中即使测量对象改变,检测灵敏度和噪声比可以调节,而不依赖于诸如反射率的光学特性或测量对象的形状和机械特性, 可以使通过照射光将测量对象的热变形对测量对象的影响减小,并且可以在最佳条件下确保测量精度。 在包括将光照射到作为测量对象的悬臂的光源的光学位移检测机构中,驱动光源的光源驱动电路,从光源照射到悬臂的光接收器,其接收光,从而检测强度 以及以预定的放大率放大光检测器的检测信号的放大器,通过提供光强度调节器和放大率调节器,对悬臂的照射光强度和放大率 可以使光电检测器变得可变。
    • 5. 发明申请
    • OPTICAL DISPLACEMENT-DETECTING MECHANISM AND PROBE MICROSCOPE USING THE SAME
    • 使用光学位移检测机制和探针显微镜
    • US20080049223A1
    • 2008-02-28
    • US11840549
    • 2007-08-17
    • Masato IyokiHiroyoshi YamamotoKazutoshi Watanabe
    • Masato IyokiHiroyoshi YamamotoKazutoshi Watanabe
    • G01J4/00G01B11/14G01N21/47
    • G01Q20/02
    • The optical displacement-detecting mechanism has: a light source for irradiating a target for measurement with light; a light source-driving circuit for driving the light source; an optical detector made from a semiconductor for receiving light after the irradiation of the target for measurement by the light source and converting the light into an electric signal thereby to detect an intensity of light; and an amplifier including a current-voltage conversion circuit for performing current-to-voltage conversion on a detection signal of the optical detector with a predetermined amplification factor. In the optical displacement-detecting mechanism, a light source having a spectrum half width of 10 nm or larger is used, whereby the light source can be driven with an output power of 2 mW or larger without generating mode hop noise and optical feedback noise.
    • 光学位移检测机构具有:用光照射被测物的光源; 用于驱动光源的光源驱动电路; 由半导体制成的光检测器,用于在由光源照射测量目标物之后接收光,并将光转换成电信号从而检测光的强度; 以及放大器,其包括用于以预定的放大系数对光学检测器的检测信号进行电流 - 电压转换的电流 - 电压转换电路。 在光学位移检测机构中,使用光谱半宽度为10nm以上的光源,由此可以以2mW以上的输出功率驱动光源,而不产生模式跳噪声和光反馈噪声。
    • 6. 发明授权
    • Optical displacement-detecting mechanism and probe microscope using the same
    • 光学位移检测机构和探针显微镜使用相同
    • US07787133B2
    • 2010-08-31
    • US11840549
    • 2007-08-17
    • Masato IyokiHiroyoshi YamamotoKazutoshi Watanabe
    • Masato IyokiHiroyoshi YamamotoKazutoshi Watanabe
    • G01B11/14
    • G01Q20/02
    • The optical displacement-detecting mechanism has: a light source for irradiating a target for measurement with light; a light source-driving circuit for driving the light source; an optical detector made from a semiconductor for receiving light after the irradiation of the target for measurement by the light source and converting the light into an electric signal thereby to detect an intensity of light; and an amplifier including a current-voltage conversion circuit for performing current-to-voltage conversion on a detection signal of the optical detector with a predetermined amplification factor. In the optical displacement-detecting mechanism, a light source having a spectrum half width of 10 nm or larger is used, whereby the light source can be driven with an output power of 2 mW or larger without generating mode hop noise and optical feedback noise.
    • 光学位移检测机构具有:用光照射被测物的光源; 用于驱动光源的光源驱动电路; 由半导体制成的光检测器,用于在由光源照射测量目标物之后接收光,并将光转换成电信号从而检测光的强度; 以及放大器,其包括用于以预定的放大系数对光学检测器的检测信号进行电流 - 电压转换的电流 - 电压转换电路。 在光学位移检测机构中,使用光谱半宽度为10nm以上的光源,由此可以以2mW以上的输出功率驱动光源,而不产生模式跳噪声和光反馈噪声。