远心镜头拥有与它的光轴平行的主光线,同轴照明是非常理想的。
The optical axis of uniaxial substrate is either perpendicular or parallel to the substrate plane.单轴介质的光轴方向既可平行又可垂直于介质分界面。
A new method of optical axis alignment for RIM optical sensors based on image processing is presented.提出了一种基于图像处理的反射式强度调制型光电传感器光路调整方法。
The relation of ray axis and optical axis is discussed by using the optical wave camber of biaxial crystal.利用二轴晶的光波面,对光轴与光线轴的关系进行了研究。
It indicates that the direction of ray axis and optical axis is identical by discussing the uniaxial crystal at last.最后对一轴晶进行了讨论,结果表明此时光轴方向与光线轴方向一致。