本文根据光线轨迹方程，讨论一种等折射率面为指数型变化的梯度折射率纤维透镜的成象特性。
The imaging characteristics of a GRIN fiber lens with exponential variation of the constant-index surfaces are discussed based on the ray paths equations.
可以用一个非常小的透镜孔阑来校正球差，但这会严重地影响最终鉴别率。
A very small lens aperture is employed to correct spherical aberration , but this severely limits the final resolution.
本文研究一类抛物型发散梯度折射率棒透镜中高斯光束的传播。
Gaussian beam propagation through a kind of parabolic divergent GRIN rod lenses is studied.
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