摘要
几何光学是医学物理教学中的难点,对于医学专业的学生而言,熟练地掌握其系列公式则是一道难题,本文提出了一种解决该难题的新处理方法。区别于传统教学方式和知识处理方法,本文先探讨了波动光学的著名杨氏双缝干涉实验的数学近似计算,运用三角公式,从无穷小量的角度,简洁地证明了其数学合理性,并指出该近似计算方法,特别是小角度直角三角形的数学近似处理与几何光学的费马原理相结合,可以推导出几何光学一系列核心公式。这样,整个的几何光学的知识处理方式呈现出简洁有力而系统强的特点。总之,本文对于医用物理学中几何光学教学具有极佳的参考意义。
The geometrical optics is a difficult point in the medicine physics teaching,and to the students who major in medicine,how to expertly grasp its series formula then becomes difficult problem to them.This article proposes a new treatment method to solve this problem.Distinguished from the traditional teaching way and the knowledge processing method,this article has firstly discussed the wave optics famous Young double slot interference experiment＇s mathematical approximation.Applying the triangle formulas,from the view angle of infinitesimal quantity,this article proved its mathematics rationality,and pointed out this approximation in right triangle with a small angle also can help to infer the series of core formulas of the geometrical optics specially combining the Fermat＇s principle.Thus,entire processing method of the geometrical optics＇ knowledge presents a succinct,powerful and the systematic property.To sum up,this article has very valuable referring significance in medical physics teaching extremely regarding to geometrical optics.
出处
《中国医学物理学杂志》
CSCD
2010年第6期2326-2328,共3页
Chinese Journal of Medical Physics
关键词
医用物理学
光学
几何光学
近似计算
Medical physics
optics
geometrical optics
approximate calculation
