Now showing items 1-20 of 60

  • The Colour Sensor for Regulation of Tunable White Luminaires 

    Paus, Anton; Hronec, Pavol (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    The quality of light is very important factor for human well-being. Except of the light intensity also the correlated colour temperature (CCT) of light is important parameter that influences the mood of people and their ...
  • 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 ...
  • Use of LEDs for tuning of spectra of indoor luminaires (Invited Paper) 

    Bizjak, Grega; Kobav, Matej B. (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    Not so far ago the two most important characteristics of a light source to be used in indoor lighting were lighting efficiency and colour rendering index. First characteristic allow us to make lighting installation also ...
  • 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 ...
  • Home Lighting: A Challenge to Improve and Standardise 

    Gašparovský, Dionýz; Raditschová, Jana (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    Investigation presented in the paper aims to map the current situation in home lighting in order to acquire an imagination on preferences and solutions applied by end users – inhabitants, by means of available technologies ...
  • Illuminating Interiors – short retrospective (Invited Paper) 

    Hrdlík, Milan (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    Article brings a new view to light as the common denominator of the Universe. From the "big bang" to the present day is electromagnetic radiation accompanying a permanent feature of all forms of life on Earth. The author ...
  • Measurement and evaluation of emergency lighting equipped with LED 

    Baleja, Richard; Novák, Tomáš; Sokanský, Karel (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    The issue of emergency lighting is quite complicated and meeting all standard requirements are often very complex. Rapid development in the field of LED light sources has brought new possibilities in the design of emergency ...
  • Design and Simulation of Three Phase Shunt Active Power Filter to Eliminate Harmonics of LED Lighting Loads 

    Tirmikçi, Ceyda Aksoy; Yavuz, Cenk (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    Non-linear loads are an important fraction of loads in most commercial buildings. Most of these non-linear loads are lighting loads. So a small negative change in their harmonic distortion levels may affect the other loads ...
  • IEA and lighting retrofit in buildings 

    Darula, Stanislav; Malíková, Marta (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    The existing performed building stock in individual countries is very large and a lot of buildings require a retrofit of lighting systems to be more energy efficient, comfortable for users and adaptable to the visual work ...
  • DALEC – energy calculation for day- and artificial lighting systems and their impact on energy demand of heating and cooling systems considering control strategies in different clime zones 

    Ebert, Oliver; Junghans, Bert; Geisler-Moroder, David; Werner, Matthias (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    DALEC is a new free web tool (www.dalec.net). Based on climate files DALEC allows energy calculation for artificial and daylight systems and their impact on heat and cooling loads in real-time. In this paper case studies ...
  • Comparison of Spectral Power Distribution of Various Light Sources in Correlation to Human Circadian System 

    Parma, Mikuláš; Baxant, Petr; Škoda, Jan (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    Non-visual effect of light to human beings are still intensively researched in these days. This paper is focused on investigation of spectral power distribution (SPD) of various light sources in correlation to human circadian ...
  • 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, ...
  • 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 ...
  • 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. ...
  • Windowless room in terms of regulations, operation and health 

    Lepší, Jana (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    The article will discuss the issue of premises without daylight in terms of people inside. When it is still the combined lighting and when the "windowless room"? Is an area without daylight illumination always completely ...
  • Consequences of location lighting systems in historical buildings 

    Polomová, Beata (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    The article deals with problems of indoor lighting in historic buildings.These are consequences of placing the built-in electrical system which affects the cultural and historical values by modernization of the building. ...
  • Indoor Workplaces with no Daylight: A Real Problem 

    Dubnička, Roman; Smola, Alfonz; Lipnický, Lukáš; Barčík, Michal (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    In general, lighting systems are subjected to verification of photometric parameters after installation what is usually performed by field trial according to lighting project as required by the standard EN 12464-1. ...
  • Delivery of Light to Buildings 

    Žák, Petr; Habel, Jiří; Panská, Zuzana (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)
    Current method of design and evaluation of interior lighting in buildings is pulverized to the solution of individual spaces. Separately is evaluated energy consumption for lighting in the building. In this situation is ...
  • 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, ...
  • 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 ...