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介绍了构成瞄准标志的环板机构及其曲线透光槽的对数螺旋线方程,分析了瞄准标志的成像过程和副光环成像的原因,提出了消除副光环的两种方法。
The logarithmic spiral equation of ring plate mechanism and its translucent groove are introduced. The imaging process of the aiming marker and the imaging of the sub-aura are analyzed. Two methods to eliminate the secondary ring are proposed.