公开(公告)号：US06798586B1

公开(公告)日：2004-09-28

申请号：US10001354

申请日：2001-10-30

申请人： Richard F. Lyon ,  Mark E. McDonald ,  Timothy F. Slagle

发明人： Richard F. Lyon ,  Mark E. McDonald ,  Timothy F. Slagle

IPC分类号： G02B204

CPC分类号： G02B27/0025 ,  G02B5/04 ,  G02B15/173

摘要： A corrector optic is provided, for use in a camera system that includes a thick prism in front of the focal plane. The corrector optic includes preferably two lenses to be aligned on the optical axis of the camera system. When coupled within the camera system, the corrector optic is disposed between the objective lens and the prism. A preferred corrector optic includes a positive lens having a convex surface facing the objective lens and a negative lens having a concave surface facing the prism, such that the lenses together reduce spherical and coma aberrations caused by imaging through the prism. Chromatic aberration is also reduced by choosing the negative lens material to have a higher index of refraction and higher dispersion than those of the positive lens material.

摘要翻译： 提供了一种补偿光学元件，用于在焦平面前方包括厚棱镜的照相机系统中。 校正器光学器件优选地包括要在照相机系统的光轴上对准的两个透镜。 当在相机系统内耦合时，校正器光学元件设置在物镜和棱镜之间。 优选的校正光学元件包括具有面向物镜的凸表面的正透镜和具有面向棱镜的凹表面的负透镜，使得透镜在一起减少由棱镜成像引起的球面和彗形像差。 通过选择负透镜材料具有比正透镜材料更高的折射率和更高的色散性，还可以降低色差。