Three-mirror telescope objective without screening

A. P. Grammatin; A. A. Sycheva

doi:10.1364/jot.77.000018

Investigation of the Deformation of Mirror Telescope Surface under Symmetric Location of Controlled Supporting Rods

Journal of Automation and Information Sciences ◽

10.1615/jautomatinfscien.v31.i7-9.50 ◽

1999 ◽

Vol 31 (7-9) ◽

pp. 22-27

Author(s):

Yuriy P. Ladikov-Roev ◽

Victor I. Panchuk ◽

Georgiy A. Cheshko ◽

Ludmila I. Samoilenko

Keyword(s):

Mirror Telescope

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Liquid-Mirror Telescope Surveys

Highlights of Astronomy ◽

10.1017/s1539299600021791 ◽

1998 ◽

Vol 11 (1) ◽

pp. 464-467

Author(s):

P. Hickson

Keyword(s):

Integration Time ◽

Spectral Energy ◽

Energy Distributions ◽

Ccd Cameras ◽

Photometric Redshifts ◽

Rotating Liquid ◽

Liquid Mirrors ◽

Under Construction ◽

Optical Telescopes ◽

Mirror Telescope

Abstract Recent advances in the technology of rotating liquid-mirrors now make feasible the construction of large optical telescopes for dedicated survey programs. Two three-metre-class astronomical telescopes have been built and asix-metre telescope is under construction. These instruments observe in zenith-pointing mode, using drift-scanning CCD cameras to record continuous imaging of a strip of sky typically 20 arcmin wide. This enables them to observe of order 100 square degrees of sky with an integration time of a few minutes per night. Data can be co-added from night to night in order to increase the depth of the survey. Liquid-mirror telescopes are particularly wellsuited to surveys using broad or intermediate bandwidth filters to obtain photometric redshifts and spectral energy distributions for faint galaxies and quasars.

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Tidal Circularization Among the Close Binaries in M67

Symposium - International Astronomical Union ◽

10.1017/s0074180900122740 ◽

1992 ◽

Vol 151 ◽

pp. 471-472

Author(s):

David W. Latham ◽

Robert D. Mathieu ◽

Alejandra A. E. Milone ◽

Robert J. Davis

Keyword(s):

Main Sequence ◽

Open Cluster ◽

Radial Velocities ◽

Spectroscopic Binaries ◽

Close Binaries ◽

To Come ◽

Mirror Telescope

In 1971 Roger Griffin and Jim Gunn began monitoring the radial velocities of most of the members brighter than the main-sequence turnoff in the old open cluster M67, primarily using the 200-inch Hale Telescope. In 1982 the torch was passed to Dave Latham and Bob Mathieu, who began monitoring many of the same stars with the 1.5-meter Tillinghast Reflector and the Multiple-Mirror Telescope on Mt. Hopkins. We have successively combined these two sets of data, plus some additional CORAVEL velocities kindly provided by Michel Mayor, to obtain 20 years of time coverage (e.g. Mathieu et al. 1986). Among the stars brighter than magnitude V = 12.7 we have already published orbits for 22 spectroscopic binaries (Mathieu et al. 1990). At Mt. Hopkins an extension of this survey to many of the cluster members down to magnitude V = 15.5 has already yielded thirteen additional orbital solutions, with the promise of many more to come.

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Optical Design of the Goaly3 Multi-Mirror Telescope System with a Wide Field of View

Applied Sciences ◽

10.3390/app11031200 ◽

2021 ◽

Vol 11 (3) ◽

pp. 1200

Author(s):

Junliu Fan ◽

Quanying Wu ◽

Baohua Chen ◽

Lin Liu ◽

Lei Chen

Keyword(s):

Fill Factor ◽

Optical Design ◽

Tolerance Analysis ◽

Field Of View ◽

Wide Field ◽

Aspheric Surfaces ◽

The Monte Carlo Method ◽

Wide Field Of View ◽

Mirror Telescope ◽

Telescope System

A Golay3 multi-mirror telescope (MMT) system is designed in this paper. The fill factor of the Golay3 MMT is derived from the angular resolution of the telescope. An initial configuration is established according to the paraxial optical theory. A three-element aspheric corrector group is designed and placed in the converging light cone to enlarge the field of view (FOV) of the Golay3 MMT. The tolerance analysis for each surface of the Golay3 MMT is conducted using the Monte Carlo method. The design results show the FOV of the Golay3 MMT system can be increased to 1.5° with the insertion of a three-element aspheric corrector group. The results of the tolerance analysis indicate that most tolerances are loose, while some decenter tolerances relating with the aspheric surfaces are relatively tight, but still within an acceptable range.

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