biconvex lens

The rule of adaxial image formation is studied, of the transmission light and reflected light through the two optical surfaces L_1 and L_2 of the biconvex lens.

研究了经双凸透镜两个光具面L1和L2的透射光线和反射光线的近轴成像规律，以此说明其像群的形成。

This paper, in detail, introduced how to study the rule of image construction for biconvex lens by using the method of vision difference.

本文详细地介绍了如何运用视差现象研究凸透镜的成象规律。

At the limit condition, the ordinary formula of self imaging on plane grating can be obtained. STUDYING THE RULE OF IMAGE CONSTRUCTION FOR BICONVEX LENS BY USING THE METHOD OF VISION DIFFERENCE

它与在球面波照射下平面光栅的自成象规律类似。用视差法研究凸透镜的成象规律

Studying the rule of image construction for biconvex lens by using the method of vision difference

用视差法研究凸透镜的成象规律

the second lens group (g2) is provided with at least one biconvex lens group (l21).

第2透镜组（G2），至少具有1片双凸形状的透镜组（L21）。