This paper comparably tests different LED light source and optical convergence system, analyzes the condensing performance and designs the structure of TIR lens.
对各种LED光源和光学会聚系统进行了对比测试，并对其聚光性能进行了分析，设计了一种全内反射透镜（TIR透镜）结构。
Used to observe the details of a simple visual objects, optical devices, is the focal length than the distance between eyes, as much out of the convergence lens.
用来观察物体细节的简单目视光学器件，是焦距比眼的明视距离小得多的会聚透镜。
It USES the optical cross convergence theory, where two optical measuring lines intersect at the substance point, to induce a space straight line equation.
几何求解法是利用两条测量线相交于被观测点的光学交汇测量原理，得出空间直线方程。
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