The spires that appear to emanate from Venus are diffraction spikes caused by the camera itself. 从金星上放射出来的光芒是由相机本身造成的衍射光。
In order to use non-diffracting beams to extend the depth-of-field of optical imaging systems, the variation rules of the central spot of non-diffracting beams were investigated. 摘要为了将无衍射光应用于大景深成像系统中,分析了无衍射光束中心光斑的变化规律。