However, for the actual optical system, its point image become a speckle because of diffraction of light and aberration.
对于实际光学系统，由于光的衍射和像差，使所成的点像为一弥散斑。
The effect of spherical aberration on the radius of image beam waist in the design of laser optical system is discussed in detail, and the expression is presented.
文章主要针对激光光学系统设计中存在的球差对高斯光束像方束腰半径的影响进行了详细的讨论，并给出了具体关系。
The aberration characteristics of the optical system of a single conic reflector and a two-lens null corrector are discussed.
讨论了由单一二次反射镜和放在其后的两透镜无光焦度校正板组成的光学系统的像差特性。
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