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	Process development and prototype realization of non-symmetrical aspherical lenses Melich, Radek ; Pintr, Pavel ; Pleštil, Jan ; Poláková, Ivana ; Procháska, František ; Rail, Zdeněk ; Václavík, Jan ; Vápenka, David ; Vít, Tomáš The aim of the study is to develop a process chain and realize prototype lenses of non-symmetrical apherical lenses of given tolerances. Detailed record
	Design, manufacture and test of M1 and M2 mirror production Lédl, Vít ; Melich, Radek ; Pintr, Pavel ; Polák, Jaroslav ; Procháska, František ; Psota, Pavel ; Rail, Zdeněk ; Steiger, Lukáš ; Tomka, David ; Václavík, Jan ; Vápenka, David ; Vít, Tomáš ; Bartoníček, Jiří Design and tests for realization of M1 and M2 mirrors for METIS project. Detailed record
	Imaging properties of several important reflectors Rail, Zdeněk ; Jareš, Daniel In this work we present the results of simulations of imaging properties of several important historical mirror telescopes constructed, Newton, Hadley, Herschel, Rosse Detailed record
	Simulation of Residual Optical Aberrations of Objective Lens 210/3452 of Solar Spectrograph of Ondřejov Observatory Rail, Zdeněk ; Jareš, Daniel ; Melich, Radek At the end of 2012 was done measuring and clean the lens 210/3452 of the solar spectrograph Observatory Astronomical Institute Academy of Sciences in Ondrejov. The spectrograph is working in line H-alpha and is formed by a birefringent lens-polarizing filter, positioned in front of the focal plane. The measured values are enumerated in the optical properties. In a report to present to the results of mathematical quantification of residual defects and new optical system design suitable for use Fabry-Perot filters. Detailed record
	Chromatic Aberration of Several Important Refractors of the 19th and 20th Century Rail, Zdeněk ; Jareš, Daniel ; Tomka, David ; Doleček, Roman In 19th century refractors dominated in astronomical research. Lenses of these devices were made of the classical glasses. Main optical aberration of these telescopes was residual chromatism. In this paper residual chromatism of several important refractors is shown. We managed to get optical parameters of 40, 36, 25 inch refractors of Alvan Clark, 12 inch telescope of Greenwiche observatory and 6 inch heliometer of Joseph Fraunhofer with which paralax of star was measured for the first time. The paper contains parameters of the dublet of König telescope of Prague‘s observatory Detailed record
	Optical Designs of the Chromospheric Telescope and the Coronograph Rail, Zdeněk ; Jareš, Daniel ; Tomka, David ; Doleček, Roman This paper presents optical designs of several devices which are used in solar astronomy – coronograph and telescope for the observations of chromosphere. We insist on high quality of images and simplicity of the whole optical design. The coronograph is composed of 7 optical parts to minimize dispersed light. The chromospheric telescope is designed both for birefringent and Fabry-Perot filters. All these designs could be used as the initial solutions for much complicated devices Detailed record
	Imaging Properties of Several Telescopes of 17th Century Rail, Zdeněk ; Jareš, Daniel ; Tomka, David ; Doleček, Roman This paper deals by imaging properties – residual chromatic aberration of some historical telescopes of 17. century. Some of them were probably made by Galileo Galilei which optiical data are known. Further simulated aberrations of telescopes are those of Constantine and Christian Huygens. These singlet objective refractors were the first telescopes with which a man observed sky objects. Detailed record
	The Correction of Optical Aberrations of Astronomical Mirrors Rail, Zdeněk ; Jareš, Daniel ; Tomka, David ; Doleček, Roman The paper deals with optical designs of correctors of large and fast spherical and aspherical mirrors. Optical aberrations can be corrected by means both lens and aspherical plates correcting systems. These subaperture systems are placed near focus of main mirror. Detailed record
	The improvement of resolving power of small chromospheric telescopes Melich, Radek ; Rail, Zdeněk ; Melich, Zbyněk The Mersen system was constructed for improvement of resolving power of commercial solar chromospheric telescopes (Coronado, Lunt). Former device of aperture of 40 mm and resolving power 4“ was equipped with entral member – afocal Mersen system of 120 mm diameter. Resolving power of composed systém was increased to 1.2“ which was observed during good seeing conditions. Detailed record
	Residual aberrations of Clark 8“ telescope of Ondřejov Rail, Zdeněk ; Jareš, Daniel ; Lédl, Vít This paper deals with residual aberrations of Clark 8“ (diameter 203 mm) lens of Astronomical Institute of AS CR,v.v.i. in Ondřejov. Objective was disassembled and cleaned in Development Optical Workshop of AS CR in Turnov in 1999. During this process optical parameters of lenses were measured and this makes possible to evaluate mathematical simulation of this dublet. Detailed record

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