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答读者透镜光圈数N与其半径误差dR有何关系? 大家知道,在光学零件加工中,通常用“光圈”来测量球面的曲率半径的误差。“光圈”检验是用玻璃样板进行的,如图所示。将一块作为标准的“工作样板”放在被测透镜的球面上。工作样板的曲率半径(R)
Answer reader lens aperture N and its radius error dR What is the relationship? As we all know, in optical parts processing, usually the “aperture” to measure the spherical radius of curvature error. The “aperture” test is done with a glass template as shown. Put a piece of “work model” as a standard on the sphere of the lens under test. The radius of curvature of the working template (R)