轴光线 axial ray
傍轴光线 paraxial ray
近轴光线 Paraxial Rays ; near axial ray ; nearly axial ray ; true paraxial ray
不交轴光线 [光] skew ray ; ray skew
旁轴光线 paraxial rays
轴中轴光线 Axial Paraxial Ray
傍轴光线跟踪 paraxial ray trcaing
近轴光线轨迹方称 araxial ray trace equations
离轴光线 Off-axis-light ; rays off-axis
近轴光线觅迹 paraxial ray tracing
只有在近轴光线条件下，平行光通过凸透镜才可近似聚焦于一点。
The parallel light rays of the prnicipal axis that approach a convex lens can converge to the focal point.
分析了透明圆形截面纤维在垂直纤维轴光线照射时纱维内表面反射光的一种特殊现象？笛卡尔线现象。
An analysis is made about Descartes rays of transparent round-section fibers-a special internal surface reflection rays of the fiber when parallel rays strike the fibers perpendicularly to fiber axis.
摘要分析了透明圆形截面纤维在垂直纤维轴光线照射时纱维内表面反射光的一种特殊现象—笛卡尔线现象。
An analysis is made about Descartes rays of transparent round-section fibers-a special internal surface reflection rays of the fiber when parallel rays strike the fibers perpendicularly to fiber axis.
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