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Poslední příspěvky

  • Luminous Intensity Distribution Curve Effect on Luminaire Placement 

    Bayer, Rudolf; Brejcha, Michal (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    The paper discusses a way to deploy a given number of point light sources in the interior to provide required illuminance levels and uniformity of the working plane by using a genetic algorithm. Furthermore a genetic ...
  • The Innovation of the Autonomous System for Indoor Illuminance Measurement 

    Drábek, Tomáš; Holub, Jan (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    The goal of this report is to show the results we achieved in the field of autonomous indoor illuminance measurement. At the beginning of the paper the state of the art measurement methodology is shown. It is followed by ...
  • Color Appearance of Decorative Coatings 

    Vik, Michal; Čejka, Václav; Viková, Martina; Maltseva, Anna (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    The article explains the basic concepts of colorimetry and deals with issues of assessment reflectance quality of special plaster coatings in accordance with current methods of measuring spectral reflectance of the ...
  • Cross-cultural variation of color preferences 

    Viková, Martina; Vik, Michal; Kania, Eva (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    Color plays an important role in life, which affects our perception, shifting meanings of symbols, emphasizes or suppresses communication of pictograms, logos, brands, acts of emotional perception, affects mood. Color is ...
  • Realtime Luminance Analyse 

    Sumec, Stanislav; Škoda, Jan; Baxant, Petr; Krbal, Michal (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    This paper presents the progress in the development of luminance analyzer LumiDISP. The main innovation is the processing of luminance analysis in real time by using industrial cameras. This new feature allows more efficient ...
  • Near Field Photometry 

    Škoda, Jan; Sumec, Stanislav; Baxant, Petr; Krbal, Michal; Pavelka, Tomáš (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    Paper describes deficiencies of conventional method for luminous intensity curve measuring and it brings comparison with newly used methods of near field photometry. There is also presented demonstration measurement of ...
  • Measurement and Recording of Reflective Properties of Materials 

    Bálský, Marek; Habel, Jiří (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    The aim of this paper is to analyse possibilities of measurement of reflective properties of materials used in the interior and to propose methods of recording of measured reflective properties of materials for calculation ...
  • Traceability of near-field goniophotometers to the SI units 

    Dubnička, Roman; Rusnák, Anton; Grinaj, Lukáš; Smola, Alfonz (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    Goniophotometry is one of the basic photometric measurements in lighting engineering. Aim is to measure spatial characteristics of luminous parts of the luminaires and light sources represented by luminous intensity ...
  • Latest Results on LED Museum Lighting: Colour Quality and Artwork Preservation (Invited Paper) 

    Szabó, Ferenc; Csuti, Péter (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    This paper describes a comprehensive study on museum lighting: one part of the study investigates the damage potential of LED museum lighting by generating composite LED spectra with the help of a mathematical algorithm, ...
  • Light Pipe Comparative Measurement 

    Plch, Jiří; Mohelníková, Jitka; Král, Jakub (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    The illuminance measurement method for a comparative evaluation of two light pipes is described in the paper. Two commercially available light pipes of similar dimensions were evaluated for light transmittance. Measurement ...
  • Methods of validation of mirror system goniophotometers and its impact to the resulting LIDC regarding the energy performance of buildings 

    Grinaj, Lukáš; Dubnička, Roman; Smola, Alfonz (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    LIDC is an important characteristic of luminaires used in the design of new lighting systems. Mirror system goniophotometers with are based on the principle of reflection of light emitted from luminaires on the mirrors. ...
  • Influence of SPD on Whiteness value of FWA treated samples 

    Vik, Michal; Viková, Martina; Prince Periyasamy, Aravin (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    The Whiteness of textiles, plastics, paper and paints is important aspects, which are considered in daily life. Customers usually prefer white products, especially in summer because of comfort reasons. In addition, white, ...
  • Luminance ratio for extreme shadings 

    Kaňka, Jan; Mohelníková, Jitka; Ullmannová, Kateřina; Vychytil, Jaroslav (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    Luminance ratio k (-) is a photometric magnitude used for daylight calculation metrics. The paper is focused on specification of luminance ratio values and their influence on daylight factor calculations for of extremely ...
  • Daylighting in relation to the energy balance of buildings 

    Adámek, Jiří; Baxant, Petr; Vrbík, Petr (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    This article deals with analysis of the effect of the daylight openings on energy balance of buildings and meeting simultaneously the minimum hygienic demand on daylight component. By giving examples the article authors ...
  • Daylighting standards: Do we have the correct metrics? (Invited Paper) 

    Raynham, Peter (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    Daylight in buildings is important in a number of ways and can bring benefits to building users and save energy. There are a number of ways to regulate the quality of daylit environments. The paper studies the way daylight ...
  • Visual field analysis for night-time drivers 

    Zálešák, Jan (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    The determination of observer´s adaptation luminance based on luminance distribution in the observer´s field of view and the adaptation of the human eye in a current question occupying lot of research teams worldwide. The ...
  • The experience with the design and refurbishment of the artificial sky in the SAS daylight laboratory 

    Kittler, Richard; Darula, Stanislav (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    Daylight laboratories are equipped with artificial skies for experimental research and testing daylight conditions in specific architectural models as well as for educational purposes. The latter often are meant only as ...
  • STN 73 0580 vs. prEN xxxx – A study about the Differences at Daylight Distribution in Attic Spaces 

    Kondáš, Kristián; Darula, Stanislav; Lopušniak, Martin (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    Daylighting design expects significant changes in the near future, although their impacts on the practice and possible orientation are currently under developing. The authors responsible for the elaboration of the new EN ...
  • Daylight Simulation base on real daylight LED module 

    Mácha, Marek; Sabol, Dušan (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    Many lighting companies and light source producers offer daylight simulation on base of different CCT changins. More or less this has nothing to do with real daylight which has completely different spectrum. Our research ...
  • Indoor Daylight Spectral Characteristics and Illuminance Levels Measurements in Deep Space Rooms and its Evaluation for Human Visual and Biological Response 

    Hartman, Peter; Hanuliak, Peter; Maňková, Lucia; Fabian, Miroslav; Hraška, Jozef; Darula, Stanislav (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    Slovak standards and regulations for design and evaluation of indoor daylight in residential buildings require average values of the Daylight Factor (D) in two check points as basic criterion. In offices, the daylighting ...

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