椭圆抛物面对细象散光锥的折射成像规律

Image Regularity of Refraction of an Astigmatic Light Pencil at an Elliptic Parabolic Surface

运用角特征函数,考察了细象散光锥通过椭圆抛物面的传播行为,给出了该情况下的成象规律的数学表达式和物理意义,加深了对细光锥的焦点特性、细光锥的抛物面折射以及单球面折射物像公式的适用条件的理解.

By means of angle characteristic function, the transmission of a sharp and astigmatic beam passing elliptic parabolic surface is studied. The mathematical expression and physical meaning of image regularity in this case is suggested. The understanding of focal point character and refraction of sharp beam is deepened. So is the applicable condition of the image formula of refraction at a spherical surface.