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本文提出了用来检查视频相机或光盘的非球面透镜透过波形的干涉装置。为产生剪切光而使用了4个棱镜(P1～P4)。其中只固定P3,除此之外,还有可动部分。通过使P4滑动,可任意改变横向量,并可以调整灵敏度。相对P3滑动P1、P2,使光程差变化,利用移相法进行分析。给各个接触面浸入润滑油,以抑制机械干扰的影响。此装置的特点是,除小型外,还可将机械和空气波动等带来的干扰和影响抑制到最小限度,即使在制造工序那种恶劣的环境下,也能测量。另外,作为修正相移量误差的方法,利用
In this paper, an interference device for detecting the transmission of an aspherical lens of a video camera or optical disc has been proposed. Four prisms (P1 to P4) were used to generate shear light. Only fixed P3, in addition, there are moving parts. By sliding P4, you can change the amount of lateral, and can adjust the sensitivity. Relative to P3 sliding P1, P2, the optical path difference changes, the use of phase-shift analysis. Immersed in each contact surface lubricant, to suppress the impact of mechanical interference. In addition to the small size, this device can measure the interference and influence caused by mechanical and air fluctuations, etc. even in harsh environments such as manufacturing processes. In addition, as a method of correcting the error of the phase shift amount, it is used