结果表明，这种透镜的成像特性与光线轨迹依赖于光功率。
It is shown that the imaging properties and the ray paths of such lenses depend on the optical power.
根据光线在晶体中的轨迹公式，推导得到了晶体透镜的光线轨迹计算公式。
According to ray tracing formulas for crystal, a set of ray tracing calculating formulas for crystal lens is derived.
计算结果表明，光线轨迹主要由入射光束的光斑尺寸、倾角和透镜的结构决定。
It is shown that the ray trajectory depends strongly on the spot size and the inclination of the incident beam and the structure of the lens.
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