相对口径

大相对口径大线视场光学系统的设计

Design of the Optical System with Large Relative Aperture and Large Linear Field of View

该方法无需辅助光学元件即可实现对大口径、大相对口径非球面的直接测量，为大口径高精度非球面的加工检验提供了有效手段。

The method can perform direct measurement of large-aperture and large relative aperture aspheric surfaces without additional optical elements , thus providing an effective means for testing and processing large-aperture high-precision aspheric surfaces .

我们运用光刻胶热熔成形的方法，制作了20×20mm的光刻胶折射型微透镜阵列，单元微透镜相对口径为F／2，单元透镜直径90μm，中心间隔100μm。

We have fabricated refractive microlens array by melting photoresist , composed of 20 × 20F / 2 microlens with 90 μ m diameter on 100 μ m centers .

介绍了一种大相对口径非球面精磨阶段面形的测量方法原理及实现其功能的软件设计。

The measurement method and principle as well software designed to implement their functions for large aperture aspherical surface in the fine grinding stage are introduced .

该反射镜相对口径为1/2，减重率为65%，是目前国内最大口径的轻质非球面反射镜。

The mirror under study is the biggest lightweight aspheric mirror until now in china , The opposite aperture F is 1 / 2 , lightweight rate is 65 % .

随着空间望远镜、侦察相机、激光武器等装备的光学系统朝着大口径、大相对口径方向发展，传统的全口径测量方法面临着巨大的挑战。

The traditional full-aperture interferometry is confronted with enormous challenge to the measurement of optical surfaces of large aperture and large-relative aperture which are widely used in space telescope , reconnaissance camera and laser weapons .

随着光学系统性能要求的不断增长，对非球面光学零件口径、相对口径、加工精度、轻量化程度、加工效率和生产成本等方面都提出了更高的要求。

With the ever-increasing demands on optical system performances , requirements for aspheric optical components are more and more critical , which involve aperture , relative aperture , accuracy , lightweight extent , manufacturing efficiency and cost .

为了实现大相对口径非球面的高精度加工，解决这一领域面临的难题，本文针对大相对口径非球面的加工工艺进行了深入的研究。

In order to realize the large relative aperture aspheric surface of high precision processing , solve the difficult problems in this field , and the large relative aperture aspheric surface processing method is deeply researched in this paper .

同时，光学系统元件也向着多极化方向发展，大尺寸大相对口径元件、高陡度大长径比内腔元件以及微小尺寸非球面光学元件的应用与需求都在不断增加。

In recent years , the development of modern optical system is multi-polar ; the demands of large aperture , large relative aperture , steep aspherics and cavities with big ratio of length-diameter , micro-aperture aspherical surfaces are all increasing rapidly .

对口径和相对口径较大的非球面，相邻子孔径间重叠系数应大于0.15，对于非球面度不大的非球面，重叠系数可大于0.25，能以较高精度求得拼接参量。

For aspherics with a large aperture and relative aperture , its overlapping coefficient of adjacent sub-apertures should be more than 0.15 . For aspherics with small asphericity , its overlapping coefficient may be more than 0.25 and the stitching parameters with higher accuracy can be obtained .