The mounting system of lenses in ASPIICS coronagraph

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F16%3A00469353" target="_blank" >RIV/61389021:_____/16:00469353 - isvavai.cz</a>

Alternative codes found

RIV/46747885:24210/16:00000655

Result on the web

<a href="http://dx.doi.org/10.1117/12.2257230" target="_blank" >http://dx.doi.org/10.1117/12.2257230</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2257230" target="_blank" >10.1117/12.2257230</a>

Result language

angličtina

Original language name

The mounting system of lenses in ASPIICS coronagraph

Original language description

This article describes the mounting system of lenses in a coronagraph ASPIICS (Association of Spacecraft for Polarimetric Imaging Investigation of the Corona of the Sun). ASPIICS is developed and produced in cooperation of twenty partners from seven countries. It is a part of the ESA's PROBA-3 mission, which includes a formation flight of a pair of satellites at orbit. Coronagraph itself consists of three objectives, where the last one is composed by one objective tube for each lens plus holder and Lyot stop. To achieve high accuracy of mounting of the individual lenses, it was necessary to achieve tight geometric and dimensional tolerances for manufacturing of the objectives barrels. In order to minimize the stress and to prevent the displacement of the lens from ideal position during a temperature change on orbit, an athermal solution was proposed. This is achieved by inserting a Teflon ring of a suitable thickness between the lens surface, objective barrel and the spring washer with a precisely defined contact force. It was necessary to find a suitable technological process of manufacturing, because of the specific behavior of PTFE during turning and complex design of other parts. All parameters of mounting system were repeatedly verified by a thermo mechanical analysis in FEM software, based on te sts of real parts.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

JV - Cosmic technologies

OECD FORD branch

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Project

<a href="/en/project/LO1206" target="_blank" >LO1206: Modern optical systems and technologies</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Proceedings of SPIE 10151, Optics and Measurement International Conference 2016

ISBN

978-1-5106-0753-8

ISSN

0277-786X

e-ISSN

—

Number of pages

6

Pages from-to

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Publisher name

SPIE, Society of Photo-Optical Instrumentation Engineers

Place of publication

Bellingham

Event location

Liberec

Event date

Oct 11, 2016

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000393154700031