Comparison of designs of off-axis Gregorian telescopes for millimeter-wave large focal-plane arrays

被引：18

作者：

Hanany, S ^{[1
]}

Marrone, DP ^{[1
]}

机构：

[1] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA

来源：

APPLIED OPTICS | 2002年 / 41卷 / 22期

关键词：

D O I：

10.1364/AO.41.004666

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We compare the diffraction-limited field of view (FOV) provided by four types of off-axis Gregorian telescopes: the classical Gregorian, the aplanatic Gregorian, and the designs that cancel astigmatism and both astigmatism and coma. The analysis is carried out with telescope parameters that are appropriate for satellite and balloonborne millimeter- and submillimeter-wave astrophysics. We find that the design that cancels both coma and astigmatism provides the largest flat FOV, similar to21 square deg. We also find that the FOV can be increased by similar to-15% by means of optimizing the shape and location of the focal surface. (C) 2002 Optical Society of America.

引用

页码：4666 / 4670

页数：5