A four-quadrant error sensor which yields position and focus utilizing an internal mirrorlette array

被引：2

作者：

Vaughnn, D ^{[1
]}

Claver, CF ^{[1
]}

Richardson, EH ^{[1
]}

机构：

[1] Natl Opt Astron Observ, Tucson, AZ 85726 USA

来源：

OPTICAL AND IR TELESCOPE INSTRUMENTATION AND DETECTORS, PTS 1 AND 2 | 2000年 / 4008卷

关键词：

internal mirrorlette array; error sensor; astigmatic; astigmatism;

D O I：

10.1117/12.395460

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The concept and design for a novel four-quadrant position and focus error sensor are presented. Expected performance and theory of operation of the astigmatic focus sensor are presented. Features include wide field of view, broad wavelength coverage, high efficiency, integral field and pupil stops, and alignment and assembly benefits. A new method for sectioning the field is utilized, an internal mirrorlette array (IMA). The advantages of the IMA are given. This error sensor is implemented in the WIYN Tip-Tilt Module, an add-on imaging instrument for the 3.5 m WIYN telescope at Kitt Peak National Observatory.

引用

页码：1413 / 1422

页数：10

共 5 条

[1] Design and performance of the tip-tilt subsystem for the Keck II telescope adaptive optics system [J].