FEM analysis of bonding process used for minimization of deformation of optical surface under Metis coronagraph mirrors manufacturing

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F16%3A00469294" target="_blank" >RIV/61389021:_____/16:00469294 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46747885:24210/16:00000719 RIV/46747885:24220/16:00000719

Výsledek na webu

<a href="http://dx.doi.org/10.1117/12.2256705" target="_blank" >http://dx.doi.org/10.1117/12.2256705</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2256705" target="_blank" >10.1117/12.2256705</a>

Jazyk výsledku

angličtina

Název v původním jazyce

FEM analysis of bonding process used for minimization of deformation of optical surface under Metis coronagraph mirrors manufacturing

Popis výsledku v původním jazyce

High demands on the final surfaces micro-roughness as well as great shape accuracy have to be achieved under the manufacturing process of the precise mirrors for Metis orbital coronagraph. It is challenging engineering task with respect to lightweight design of the mirrors and resulting objectionable optical surface shape stability. Manufacturing of such optical elements is usually affected by number of various effects. Most of them are caused by instability of temperature field. It is necessary to explore, comprehend and consequently minimize all thermo - mechanical processes which take place during mirror cementing, grinding and polishing processes to minimize the optical surface deformation. Application of FEM simulation was proved as a useful tool to help to solve this task. FEM simulations were used to develop and virtually compare different mirror holders to minimize the residual stress generated by temperature changes and to suppress the shape deformation of the optical surface below the critical limit of about 100 nm.

Název v anglickém jazyce

FEM analysis of bonding process used for minimization of deformation of optical surface under Metis coronagraph mirrors manufacturing

Popis výsledku anglicky

High demands on the final surfaces micro-roughness as well as great shape accuracy have to be achieved under the manufacturing process of the precise mirrors for Metis orbital coronagraph. It is challenging engineering task with respect to lightweight design of the mirrors and resulting objectionable optical surface shape stability. Manufacturing of such optical elements is usually affected by number of various effects. Most of them are caused by instability of temperature field. It is necessary to explore, comprehend and consequently minimize all thermo - mechanical processes which take place during mirror cementing, grinding and polishing processes to minimize the optical surface deformation. Application of FEM simulation was proved as a useful tool to help to solve this task. FEM simulations were used to develop and virtually compare different mirror holders to minimize the residual stress generated by temperature changes and to suppress the shape deformation of the optical surface below the critical limit of about 100 nm.

Druh

D - Stať ve sborníku

CEP obor

JP - Průmyslové procesy a zpracování

OECD FORD obor

—

Projekt

<a href="/cs/project/LO1206" target="_blank" >LO1206: Moderní optické systémy a technologie</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of SPIE 10151, Optics and Measurement International Conference 2016

ISBN

978-1-5106-0753-8

ISSN

0277-786X

e-ISSN

—

Počet stran výsledku

9

Strana od-do

—

Název nakladatele

SPIE, Society of Photo-Optical Instrumentation Engineers

Místo vydání

Bellingham

Místo konání akce

Liberec

Datum konání akce

11. 10. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000393154700025