Shape parameters measurement of ultralight mirrors

0354707 - FZÚ 2011 RIV DE eng J - Článek v odborném periodiku
Pech, Miroslav - Mandát, Dušan - Hrabovský, Miroslav - Palatka, Miroslav - Schovánek, Petr
Shape parameters measurement of ultralight mirrors.
Optik. Roč. 121, č. 20 (2010), s. 1881-1884. ISSN 0030-4026. E-ISSN 1618-1336
Grant CEP: GA MŠMT(CZ) 1M06002; GA AV ČR KAN301370701
Výzkumný záměr: CEZ:AV0Z10100522
Klíčová slova: Hartmann test * roughness * scattering * BRDF * mirror shape
Kód oboru RIV: BH - Optika, masery a lasery
Impakt faktor: 0.454, rok: 2010

Two measuring techniques are presented in this paper. These techniques are able to measure and process the shape of the reflecting surfaces. In the first part of the paper the theory and modifications of the optical, mechanical and software design for the Hartmann wavefront analyzer are described. This new method is applied to the non-contact measurement of concave-mirrors shape and objectively defines the shape and specifies the difference of the segment shape from an ideal surface with micrometer accuracy. This difference determines essentially the mirrors image quality. In the second part of the paper attention is concentrated on the other main factor that affects image quality— surface roughness. Thereinafter, physical background and usage of the measuring system and results are presented.
Trvalý link: http://hdl.handle.net/11104/0193651