A focusing apparatus for remote pipes with double prisms double focusing and individual focusing in order to compensate for the defective vision of the observer

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• 2. 基于一维非聚焦和聚焦超声双阵列扫描成像装置及方法 [P] . 中国专利： CN107115098A . 2017-09-01
• 3. Automatic focusing method of digital image processing apparatus wherein double focusing is performed [P] . 韩国专利： KR101086414B1 . 2011-11-25

  机译： 其中执行双重聚焦的数字图像处理设备的自动聚焦方法

• 4. AUTOMATIC FOCUSING METHOD OF DIGITAL IMAGE PROCESSING APPARATUS WHEREIN DOUBLE FOCUSING IS PERFORMED [P] . 韩国专利： KR20060119493A . 2006-11-24

  机译： 进行双重聚焦的数字图像处理装置的自动聚焦方法

• 5. Focusing device for optical imaging systems, in particular prisms remote pipes [P] . 日本专利： JPS4840101B1 . 1973-11-28

  机译： 用于光学成像系统的聚焦装置，特别是棱镜遥控管

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• 8. Development of Tandem, Double-focusing, Electron Impact, Gas Source Mass Spectrometer for Measurement of Rare Double-Substituted Isotoplogues in Geochemistry. [R] . Young, E. D. 2015

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