该光瞳滤波器由两个平行偏光镜，一个电光晶体与一个径向对称双折射晶体组成。
It consists of two parallel polarizers, an electro-optical crystal and a birefringent crystal with radial symmetry.
本文从理论上分析了抛物面反射镜产生平行光场的光强分布规律，并介绍了实际测量结果；
The intensity distribution of parallel light field produced by paraboloid reflector is analysed and its measured result is introduced.
本发明是一种同轴共焦旋转抛物面镜聚光器，属于平行光汇聚的技术领域。
The invention relates to a concentrator of a coaxial confocal rotating paraboloidal mirror, belonging to the technical field of parallel light convergence.
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