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Map of lighting in GIS
Otáhal, Miroslav ; Bubník, Karel (referee) ; Rozman, Jiří (advisor)
Bachelor thesis is about theory of outdoor illuminating system in area of public streets and roads. Thesis is divided into the two parts. First part describe basic terms of photometry and measure technique along with hygienic regulation of ČSN EN 13201 standard. In this part is also a describable of geographic information system ArcGIS, which can be used in practice part. Second part is about practice of measure illumination of standard ČSN EN 13201 specification. This measure was performed in different parts of Brumovice village (South of Moravia). These results were compared by hygienic regulation of ČSN EN 13201 specification. The final result of this research is a map of public outdoor illuminating system. In this map there are marked parts, which fall within convenient of good and bad answers, according ČSN EN 13201 specification standard.
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Printed light dosimeter for galleries
Škarvadová, Adéla ; Klusoň, Petr (referee) ; Veselý, Michal (advisor)
This bachelor thesis deals with the lighting of the gallery space and the measurement of light intensity inside. The subject of the experimental study are photosensitive composition for the production of disposable printed and thin-film dosimeters for galleries and museums. Kinetic color change of the two systems using two dyes and calibration components was examined. The composition for printing was optimized and dosimeters were prepared with a wide range of light exposure causing a significant color change of the dosimeter, and that from 1,7 klx•h to 200 klx•h.
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Measurement of operating room lights quality
Rovná, Tereza ; Potočňák, Tomáš (referee) ; Harabiš, Vratislav (advisor)
This thesis is focused on measuring the quality of lighting in operating rooms. Operating lights are very demanding in terms of quality requirements for each parameter, so it is important to specify exactly these parameters and check them regurarly. To measure the quality of the light source, was used a special kit from Maquet. Measurement procedure was not as accurate as it was for operating lighting need, therefore, this work includes a proposal to improve the measurement of quality lighting in operating theaters. In cooperation with University Hospital Brno Bohunice University Hospital Motol and the company Maquet measured nine operating lights, each light were compared in terms of parameters such as maximum light intensity, light distribution in the surgical field. In each category were selected several lighting, which reached the best results. The various parameters were compared with values declared by the manufacturer.
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Scene Ilumination by Photon Mapping Method
Hübner, Lukáš ; Španěl, Michal (referee) ; Kršek, Přemysl (advisor)
This thesis deals with the estimation of global illumination of a~scene. Global illumination is expressed as a~physical simulation in connection with illumination methods used in current computer graphics. In the practical part there is expressed an implementation of global illumination estimation using photon maps.
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Comparison of Conventional and New methods of Measurement and Evaluation of Luminance
Svoboda, Miloslav ; Novák,, Tomáš (referee) ; Baxant, Petr (advisor)
Because luminance is the only value to which our sight responds, its measurement becomes important in terms of ensuring the proper function of vision. Nowadays luminance measuring can be made by conventional methods, such as direct using of luminance meter. However an entirely new method of measuring luminance levels is coming. This method is based on using luminance analyzers which work using a digital photography for the analysis of luminance. This thesis deals with these issues and is divided into several chapters, which form the two main parts of the thesis, the theoretical and the practical one. The theoretical part of the thesis deals with the basics of lighting technology, as well as the principles of measuring the luminance using conventional methods. New methods of measurement, i.e. using luminance analyzers, are discussed in two chapters which analyse both the principle and characteristics of analyzers available today. In the practical part is a comparative measurement carried out – in the laboratory and in terrain – using both methods.
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Photometry and spectroradiometry of LEDs
Vysoudil, Martin ; Škoda, Jan (referee) ; Drápela, Jiří (advisor)
This thesis deals with the processing of light technical parameters and performance of key LED chips for their applications in lighting systems. The aim is to create a laboratory model for measuring the qualitative and quantitative parameters of highly luminous light LED emitted depending on the angle, using a spherical integrator 0.3 m, goniometer and fiber spektroradiometr /luxmeters. Goniometer is designed using modular optomechanical parts company Thorlabs. Due to the current passing through the LED chips heat up considerably. To light LED chip parameters tested were not affected by heat from the chip is required to pay the heat generated by a passive radiator. Another part of this thesis is the reconstruction of an older model spherical integrator. Reconstruction must be undertaken so as to ensure sufficient cooling again tested LEDs. Light scattered in the ball of the integrator is led by the optical cable to the spektroradiometr that are subsequently recorded its parameters. The second element used to measure the light produced by the LED source is photocell. Spherical integrator must be appropriately modified to indicate the two measuring elements and also meet the standards of determining the correctness of measurement. At the end of the measurement results will be compared with catalog values provided by the manufacturer.
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Mapování světelného znečištění a negativní vlivy osvětlování umělým světlem na živou přírodu na území České republiky
Masarykova univerzita v Brně, Přírodovědecká fakulta, RECETOX, Brno ; Masarykova univerzita v Brně, Přírodovědecká fakulta, Brno ; Hollan, Jan
Cílem úkolu je zmapování zdrojů umělého osvětlení na území České republiky, zjištění vlivu jednotlivých typů zdrojů na životní prostředí, ocenění negativních vlivů na složky živé přírody a procesy v přírodě probíhající. Podařilo se shromáždit přehledy problematiky z několika oborů a provést některé výzkumy poprvé ve světovém měřítku. Hlavní závěry: noční prostředí je již velmi narušené, populace hmyzu jsou ztenčené vinou venkovního svícení na zlomky původních, alespoň milionu obyvatel denně vadí nemístné světlo v noci, obloha se za uplynulé půlstoletí stala světlejší jednoznačně vinou rostoucích emisí, škodlivé emise lze bez újmy na funkčnosti venkovního osvětlení velmi snížit technickými opatřeními.
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