The aluminizing system for the 8.4 meter diameter LBT primary mirrors

Atwood, Bruce; Pappalardo, Daniel; O’Brien, T. P.; Hill, John M.; Mason, Jerry; Belville, Ralph; Steinbrecher, D.; Brewer, D. F.; Teiga, E. J.; Sabol, B.; Howard, James D.; Miglietta, Luciano

doi:10.1117/12.672998

Cited by 5 publications

(1 citation statement)

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“…The technical details and results of the aluminizing system are described by . 6 The rough vacuum is made with a roughing pump and a Roots blower. Inside the belljar a group of charcoal cryopanels cooled by liquid nitrogen provides the final pumping down to the coating vacuum.…”

Section: In-situ Aluminizing -Design Successmentioning

confidence: 99%

The Large Binocular Telescope

Hill¹

2010

Appl. Opt.

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The Large Binocular Telescope (LBT) Observatory is a collaboration among institutions in Arizona, Germany, Italy, Indiana, Minnesota, Ohio, and Virginia. The telescope on Mount Graham in Southeastern Arizona uses two 8.4 m diameter primary mirrors mounted side by side. A unique feature of the LBT is that the light from the two Gregorian telescope sides can be combined to produce phased-array imaging of an extended field. This cophased imaging along with adaptive optics gives the telescope the diffraction-limited resolution of a 22.65 m aperture and a collecting area equivalent to an 11.8 m circular aperture. This paper describes the design, construction, and commissioning of this unique telescope. We report some sample astronomical results with the prime focus cameras. We comment on some of the technical challenges and solutions. The telescope uses two F/15 adaptive secondaries to correct atmospheric turbulence. The first of these adaptive mirrors has completed final system testing in Firenze, Italy, and is planned to be at the telescope by Spring 2010.

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Section: In-situ Aluminizing -Design Successmentioning

confidence: 99%

The Large Binocular Telescope

Hill¹

2010

Appl. Opt.

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Honeycomb Mirrors for Large Telescopes

Hill

Martin

Angel

2013

Planets, Stars and Stellar Systems

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Research progress on ultraviolet enhanced gold mirrors suitable for submirrors of large telescopes

Wang,

Lu,

Tian

et al. 2024

Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI

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Due to the large number of sub-mirrors for very large telescope, the recoating is heavy workload, so the reflector needs to take into account the film efficiency and life. Based on the requirements of China's great telescope, we carried out the experimental research on UV-enhanced silver reflective film system. The contents include the design of UV-enhanced silver reflective film system, the UV-enhanced silver reflective film system plating process, and the film life and environmental stability verification tests. The experimental results show that the method is successful in broadening the silver film to the ultraviolet band. It can greatly improve the lifetime and environmental stability of the film, and is suitable for application to extremely large splicing astronomical telescope.

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The aluminizing system for the 8.4 meter diameter LBT primary mirrors

Cited by 5 publications

References 0 publications

The Large Binocular Telescope

The Large Binocular Telescope

Honeycomb Mirrors for Large Telescopes

Research progress on ultraviolet enhanced gold mirrors suitable for submirrors of large telescopes

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