<title>Chopping secondary mirror system for 1.3-m IR telescope</title>

Study on assembly technology of primary and secondary mirror system based on truss structure

10.1117/12.2603955 ◽

2021 ◽

Author(s):

Peng Wang ◽

Xing Song ◽

Xiaohua Hou ◽

Zhong Shen

Keyword(s):

Mirror System ◽

Truss Structure ◽

Secondary Mirror ◽

Assembly Technology

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LSST secondary mirror system final design

10.1117/12.2234021 ◽

2016 ◽

Cited By ~ 1

Author(s):

Douglas R. Neill ◽

Gregory Bogan ◽

Dale Zajac ◽

Constanza Araujo ◽

William J. Gressler ◽

...

Keyword(s):

Mirror System ◽

Secondary Mirror ◽

Final Design

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Secondary mirror system for the European Solar Telescope (EST)

10.1117/12.857344 ◽

2010 ◽

Cited By ~ 1

Author(s):

L. Cavaller ◽

B. Siegel ◽

G. Prieto ◽

E. Hernandez ◽

J. M. Casalta ◽

...

Keyword(s):

Mirror System ◽

Solar Telescope ◽

Secondary Mirror

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Concept of a new PZT

International Astronomical Union Colloquium ◽

10.1017/s0252921100074212 ◽

1978 ◽

Vol 48 ◽

pp. 271-278

Author(s):

Chr. Kühne

Keyword(s):

Mirror System ◽

Measuring Instruments

The PZT according to MARKOWITZ, undoubtedly one of the most accurate measuring instruments, has become an integral part of astronomy in the last years. Yet there are two reasons why I still tried to improve the MARKOWITZ basic idea.For the MARKOWITZ process the use of a lens objective is imperative. Because of the diameter limitations of the lens objectives the magnitude is reduced. Although a 65 cm PZT has been put into operation in Washington recently, the thermal difficulties encountered made it necessary to control the temperature actively. In addition, the 65 cm diameter of a lens equipped with 4 elements can be considered as the very limit, but not for a mirror system.In addition there are still more disadvantages using lens objectives. The useable field is restricted by astigmatism, reducing the range of declination. The transmission, especially in the blue wavelengths, decreases very rapidly with the thickness of lenses. For large multilens objectives the transmission is less than for a mirror system.

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