LSST secondary mirror system final design

2016 ◽  
Author(s):  
Douglas R. Neill ◽  
Gregory Bogan ◽  
Dale Zajac ◽  
Constanza Araujo ◽  
William J. Gressler ◽  
...  
Keyword(s):  
Mirror System ◽  
Secondary Mirror ◽  
Final Design

Chopping secondary mirror system for 1.3-m IR telescope

1990 ◽  
Author(s):  
Takaharu Ueda ◽  
Shigeki Mizuno ◽  
Tetsu Yamamoto
Keyword(s):  
Mirror System ◽  
Secondary Mirror

Secondary mirror system for the European Solar Telescope (EST)

2010 ◽  
Author(s):  
L. Cavaller ◽  
B. Siegel ◽  
G. Prieto ◽  
E. Hernandez ◽  
J. M. Casalta ◽  
...  
Keyword(s):  
Mirror System ◽  
Solar Telescope ◽  
Secondary Mirror

Concept of a new PZT

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.

AL TECH 203EZ and 303EZ

Alloy Digest ◽  
1978 ◽  
Vol 27 (11) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Stainless Steels ◽  
High Speed ◽  
Heat Treating ◽  
Temperature Performance ◽  
Final Design ◽  
Mechanical Properties And Corrosion ◽  
Specialty Steel ◽  
Machining Operations ◽  
Machining Characteristics

Abstract AL Tech 203EZ and 303EZ are non-magnetic, austenitic, free-machining stainless steels specifically designed for use in high-speed, automatic machining operations. These modifications retain, in so far as possible, the good mechanical properties and corrosion resistance of the basic compositions which they represent. Sulfur or selenium is added to produce the free-machining characteristics. Data are typical; do not use for specification or final design. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-358. Producer or source: AL Tech Specialty Steel Corporation.

Umbrella-type dynamic-focusing mirror system

1979 ◽  
Vol 18 (3) ◽  
pp. 386 ◽  
Author(s):  
Takuso Sato ◽  
Nanayuki Sakuma ◽  
Osamu Ikeda ◽  
Hiroyuki Ishida
Keyword(s):  
Mirror System

Final design of electrostatic probes for MITICA beam line components

2021 ◽  
Vol 166 ◽  
pp. 112265
Author(s):  
Silvia Spagnolo ◽  
Monica Spolaore ◽  
Mauro Dalla Palma ◽  
Roberto Pasqualotto ◽  
Andrea Barzon ◽  
...  
Keyword(s):  
Beam Line ◽  
Final Design
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