摘要
轮胎面属于高次非球面，不同于二次回转球面，在光学系统中具有独特重要的用途，但至今无有效的面形检验方法本文用自行研制的移相式ＣＯ２ 激光（λ＝ １０６μｍ ）球波面干涉仪，检验双曲率半径之差为亚毫米量级的轮胎面面形；文中分析了测试原理，给出了测试实例的移相干涉图、双曲率半径测量值及面形波差三维立体图。
A torus is a kind of aspherical surface,different from quadratic rotary surface.It plays an important role in special optical systems.However,up to now there is no effective method to test its wavefront.In this paper,a method is proposed using CO 2 (10.6μm) IR interferometry to test a torus,whose curvature radii is different from submillimeter deducing to micrometer,the principle is also given.Then a example torus is tested in self developed CO 2 laser spherical interferometer.Some interferograms are shown.According to these interferograms the wavefront error and the difference of two radii can be obtained and shown in this paper.
出处
《光子学报》
EI
CAS
CSCD
1999年第9期853-856,共4页
Acta Photonica Sinica
基金
江苏省青年科研基金
