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
    • 3. 发明授权
    • Automatic focus adjusting system of microscope employed in surface
inspection apparatus
    • 用于表面检测仪器的显微镜自动调焦系统
    • US4897537A
    • 1990-01-30
    • US173416
    • 1988-03-25
    • Seiichi MiyamotoYo TajimaMasaru MarukiMasaru Hanatani
    • Seiichi MiyamotoYo TajimaMasaru MarukiMasaru Hanatani
    • G02B7/28G02B21/24
    • G02B21/244
    • An automatic focus adjusting system for a surface inspection microscope including a sheet setting stage, a microscope for observing a sheet surface set on the stage, a television camera for picking up an image observed by the microscope and a focus adjusting system. The system irradiates the back or front of an optically transparent sheet set on the stage creating an image on the front surface of the sheet. The image's contrast varies depending on the inner physical structure of the sheet. The television camera's video signals are processed by a focus evaluation circuit. The image contrast of the sheet's front surface image generates a contrast frequency allowing the focus evaluation circuit to calculate the focus evaluation degree. The system automatically adjusts the stage and compares the present focus evaluation degree with the prior focus evaluation degree. If the current focusing evaluation degree is greater than the prior focus evaluation degree the stage is adjusted one step and the process repeated until the focus evaluation circuit determines that the current focus evaluation degree is not greater than the prior focus evaluation degree.
    • 一种用于表面检查显微镜的自动对焦调节系统,包括片材设置阶段,用于观察设置在舞台上的片材表面的显微镜,用于拾取由显微镜观察到的图像的电视摄像机和焦点调节系统。 系统照射设置在舞台上的光学透明片材的背面或前面,在片材的前表面上形成图像。 图像的对比度取决于片材的内部物理结构。 电视摄像机的视频信号由焦点评估电路处理。 片材的前表面图像的图像对比度产生对比度频率,允许焦点评估电路计算焦点评估度。 系统自动调整舞台,并将当前焦点评估度与以前的焦点评估度进行比较。 如果当前聚焦评估度大于先前焦点评估度,则将舞台调整一步,重复该过程,直到焦点评估电路确定当前焦点评估度不大于先前焦点评估度。
    • 10. 发明授权
    • Surface inspection apparatus
    • 表面检查装置
    • US4829374A
    • 1989-05-09
    • US119826
    • 1987-11-12
    • Seiichi MiyamotoMasaru HanataniYo Tajima
    • Seiichi MiyamotoMasaru HanataniYo Tajima
    • G01N21/88G01N21/93G02B7/36G02B21/24
    • G02B21/244
    • A surface inspection apparatus having a microscope and a television camera is disclosed. The inspection apparatus samples a signal portion from a horizontal scanning portions of the video signal produced by the television camera, compares the instantaneous voltages of a filtered signal of said sampled portion removing low-frequency components with a reference voltage, counts the number of pulses constituted from the high level portions of said filtered signal higher than said reference voltage sequentially moves the focal point of the microscope step by step relative to the object surface, compares the present pulse count with the previous pulse count thereof at just prior step of the moving of the focal point, and decides the focal point in the position corresponding to the maximum number of pulses to control the moving of the focal point for correctly setting the focal point in said corresponding position.
    • 公开了具有显微镜和电视摄像机的表面检查装置。 检查装置从电视摄像机产生的视频信号的水平扫描部分中对信号部分进行采样,将去除低频分量的所述采样部分的滤波信号的瞬时电压与参考电压进行比较,对构成的脉冲数进行计数 从高于所述参考电压的所述滤波信号的高电平部分依次将显微镜的焦点相对于物体表面逐步移动,将当前的脉冲计数与先前的脉冲计数进行比较,在之前的步骤 焦点,并且在与最大脉冲数对应的位置中确定焦点,以控制用于在所述对应位置中正确设置焦点的焦点的移动。