National Repository of Grey Literature 13 records found  1 - 10next  jump to record: Search took 0.00 seconds. 
Measurement of scattering properties of ultrathin glass mirrors
Mandát, Dušan ; Pech, Miroslav ; Palatka, Miroslav ; Nožka, Libor ; Nováková, P. ; Hrabovský, M. ; Schovánek, Petr
Following text deals with results of light scattering measurement of glass mirrors using the optical instrument CASI owned by Joint Lab- oratory of Optics (JLO) of the Palacky University and the Institute of Physics of Academy of Science of the Czech Republic. JLO pro- duces the large-area ultrathin mirros which are used in fluorescence detectores (FD).
Near UV filter optical properties
Palatka, Miroslav ; Mandát, Dušan ; Pech, Miroslav ; Nožka, Libor ; Nováková, P. ; Marek, M. ; Hrabovský, M. ; Schovánek, Petr
Following text notice results of measurement of optical properties of the M-UG6 filter used in fluorescence telescopes (FD). We use op- tical instruments owned by Joint Laboratory of Optics of the Palacky University and the Institute of Physics of Academy of Science of the Czech Republic.
Introduction to roughness ASR measurement method with mirror roughness measurement example
Pech, Miroslav ; Hrabovský, M. ; Mandát, Dušan ; Marek, M. ; Palatka, Miroslav ; Schovánek, Petr
In this paper attention is concentrated on one of the main factor which affects image quality of the optical elements - a surface roughness. There are presented physical background and usage of the special measuring system. Thereinafter there is presented quantitative measurement method of the microscopic surface quality with example in measuring of the PAO mirror segments scattering parameters.
Nová měřící metoda tvaru konkávních zrcadel na principu digitálního zpracování Hartmanova testu
Pech, Miroslav ; Mandát, Dušan ; Hrabovský, Miroslav ; Schovánek, Petr
The theory, optical, mechanical, and software design for a special Hartmann wavefront analyzer is presented. This method is applied for the non-contact method of concave mirrors shape measurements. The so-called Hartmann test is used with the digital image reading and the fast computer data evaluation. In this method a transparent spatial modulator is used instead of binary mask. Our institute Joint Laboratory of Optics produces segmented mirrors for the Pierre Auger observatory fluorescent detector [1]. We use this method as the qualitative measuring of this spherical mirror segments. These segments are unique because they are light and ultrathin. The production of mirrors is based on standard operations commonly used in the optical industry (cutting, drilling, milling, grinding and polishing), with the difference that they are extremely thin. This fact can cause segment shape instability in the production process.
Měření drsnosti povrchu pomocí optických metod
Mandát, Dušan ; Pech, Miroslav ; Hrabovský, Miroslav ; Rössler, T.
The article treats of roughness measurement by means of optical methods. We own two unique optical devices enabling roughness measurement (CASI and SCAN). Both were produced by Schmitt Industries. Measuring range is from 1 Å to 2000 Å.
Měření otěru kyčelního implantátu metodou Fourierovské profilometrie s užitím postupného vykreslení mřížky
Pochmon, Michal ; Rössler, T. ; Mandát, Dušan ; Hrabovský, Miroslav ; Gallo, J.
Contribution is focused on possibility of using Fourier profilometry for measuring of the abrasion of cotyle implant, which is caused by using in the patient´s body. The projected optical structure in Fourier profilometry is sinusoidal pattern. The results showed, that sinusoidal pattern is not optimal optics structure to get sufficiently precise results. Instead of it, the linear pattern made by sequential drawing of linear strips can be used.
Materiology of mouldings for automobile industry
Mandát, Dušan ; Pech, Miroslav ; Hrabovský, Miroslav ; Pochmon, Michal ; Rössler, T.
This article treats of optical methods, that investigate defect of mouldings designed for automobile industry. We use simple optical system and image processing algorithm to measure surface deformation. The sources of defect usually are: scratch, bulge, grey, bristle etc.
Review of the topographic and profilometric methods developed in the Joint laboratory of optics in Olomouc
Rössler, T. ; Mandát, Dušan ; Hrabovský, Miroslav
The presented paper is dealt with the methods of the optical 3D measurement of the shape of objects. Generally, optical methods are employed especially for the possibility of contact-less measurement. The presented mehods are the shadow and projection moiré topograpy and the computational, Fourier and stereoscopic profilometry.
Phase analysis using Fourier transform profilometry
Mandát, Dušan ; Rössler, T. ; Hrabovský, Miroslav
The profilometry method used here is the Fourier-Transform Profilometry Method that was originally published by Takeda in 1982. The geometry of the experiment is very similar that used in Moiré Topography, but the advantage of this method is only one image of the projected grating is necessary to produce the resulting object´s fringes.
Zkušenosti s měřením reflexních vrstev u zrcadel používaných pro projekt Pierre Auger
Pech, Miroslav ; Hrabovský, Miroslav ; Schovánek, Petr ; Křepelka, Jaromír ; Palatka, Miroslav ; Nožka, Libor ; Mandát, Dušan ; Rössler, T. ; Řídký, Jan ; Boháčová, Martina
The Pierre Auger Observatory is designed for study of the universe's high energy particles, which evolve in the high layers of the atmosphere, where an elementary particle strikes with energy above 10.sup.19./sup. eV (1.6 J!). However, there is no scientific consensus about cosmic ray origin. The Auger Observatory is projected to gather the data needed to solve that puzzle. One of the detection technique is to observe these showers by fluorescent detectors, which are able to record the cascade development where the secondary particle causes atmospheric nitrogen to fluoresce.

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