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- Under astigmatism even narrow parallel light beams will not combine into one point. 有象散存在时甚至很窄的平行光束都不能会聚在一点。
- A type of small-sized interferometer is reported, which makes use of the coupling of optical fiber and gradient index lens (GRIN) to form parallel light beams. 摘要介绍一种超小型光纤导光干涉仪，它利用光纤和自聚焦透镜的耦合来形成平行光路，利用半反和全反光学膜片分光。
- parallel light beam 平行光束
- A light beam rushed to the night sky. 一道光束冲向夜空。
- The light beam is scattered by small particles in the moving fluid. 光束被流动流体中的微粒所散射。
- The light beam passes through the container holding the vapor. 光束通过盛蒸汽的容器。
- The basic theory of OAM of light beam is presented in Chapter II. 介绍了光束轨道角动量的基本理论。
- Nonlinear Imbert-Fedorov Effect for Reflective Light Beam[J]. 引用该论文 李春芳;张纪岳;段弢;葛国库.
- Two kinds of convex lens which make parallel light rays converge to the focal point are given. 本文给出两种能使平行光严格聚焦于一点的凸透镜。
- The light beam can be steered more accurately than a mechanical cutter. 这种光束比机械切削器能运转得更为精确。
- The parallel light rays of the prnicipal axis that approach a convex lens can converge to the focal point. 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。
- M.A.Porras.Non-paraxial vectorial moment theory of light beam propagation.Opt. 郭弘;刘承宜;胡巍.;多阶强度非线性条件下的光束传输研究
- The Fourier transform characteristics of off-axis hololens was discussed, which was made by using a dot light source and an inclined parallel light. 摘要利用一点光源和一束倾斜平行光拍摄了一种离轴全息透镜，并对其傅里叶变换特性进行了分析。
- Reference mark is set automatically by light beam from the photocell. 通过光电管射出的光束自动定位基准标记，不需人工作标记。
- Light beamed through a hole in the curtain. 光线透过窗帘上的一个孔照射进来。
- Presbyopic In the rest of the state of the eye so that the parallel light to form behind the retina known as the focal point of hyperopia (hypermetropia, hyperopia). 一般的钢琴教师 都是从音乐学院或师范类学校的音乐专业毕业的，所以 一般的教学方法 都是从学校 搬 过来的，一般学院里的钢琴教育方法，都是以 练习曲或古典曲 为主，专业性比较强！
- The light beam from a laser will not spread out as the beam from a flash light or searching light does. 从激光中发出的光束不象手电筒或探照灯发出的光束那样扩散开。
- As the motor turns, the mask rotates, causing the striped pattern to alternately block and transmit the light beam. 马达转动时光罩跟著旋转，其上的条纹图形交替遮断光束及让光束通过。
- However,no one talks about the experimental result:if a doubler with a pair of parallel light pass surfaces cut in Brewster angle can reduce reflective losses in frequency conversion? 但并没有人谈到过实验结果 :这种将倍频器的通光面切割成相互平行的具有布儒斯特角的方法 ,是否真能减少倍频器的反射损耗 ?
- Day Mian side go up, even Xie have made curious brilliance, radiate outward , arise especially big light beam, astronomer name is " Mian flow ". 日冕的边上，甚至泻出了奇异的光彩，向外辐射，出现特大的光束，天文学家称之为“冕流”。
