Browsing Light Světlo 2015 by Title
Now showing items 1-20 of 60
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Adaptive control of public lighting
(Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)Public lighting is a specific type of lighting system, which various requirements. It is a lighting system which is subject to many influences. Some impacts are changing very rapidly but a lighting system is designed for ... -
Calculation of Roadlighting Photometric Parameters Under Mesopic Conditions
(Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)At the present the mesopic photometry is hot topic in lighting engineering especially in the public lighting. The mesopic photometry is used in particular to consider roadlighting photometric parameters where mesopic vison ... -
Color Appearance of Decorative Coatings
(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 ... -
Color discrimination on the border of photopic/mesopic vision
(Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)The human eye is most sensitive to the wavelength region 555 nm, with decreasing light intensity is shifted the sensitivity of the human eye to shorter wavelengths. Subjective evaluation of observers (Farnsworth-Munsell ... -
The Colour Sensor for Regulation of Tunable White Luminaires
(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 ... -
Comparison of Halogen and Xenon Headlamps in Terms of Pedestrians’ Visibility
(Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)This case study presents a comparison of visibility and recognisability (discernibility) of objects – pedestrians – on the road in rural areas at night on encounter with low beam headlights fitted with halogen lights and ... -
Comparison of Spectral Power Distribution of Various Light Sources in Correlation to Human Circadian System
(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 ... -
Comprehensive Approach to Public Lighting
(Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)Public lighting as well as every technical infrastructure has got its own lifetime, so the periodic renovation is needed. Public lighting in the Czech Republic was built during the 70´s of the last century and regular ... -
Comprehensive evaluation of interior lighting
(Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)Paper deals with problematic of evaluation artificial and daylight as one medium. By this assumption we have to deal with the different evaluation of each lighting system. Whereas artificial light is evaluated by the ... -
Consequences of location lighting systems in historical buildings
(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. ... -
Cross-cultural variation of color preferences
(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 ... -
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
(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 ... -
Daylight Simulation base on real daylight LED module
(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 ... -
Daylighting in relation to the energy balance of buildings
(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)
(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 ... -
Delivery of Light to Buildings
(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 ... -
Design and Simulation of Three Phase Shunt Active Power Filter to Eliminate Harmonics of LED Lighting Loads
(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 ... -
Energy Performance of Public Lighting
(Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2015)After energy performance of lighting in buildings assessed in the proces of energy certification was put to life few years ago, the focus is now on energy performance of public lighting. As required by the mandate of the ... -
The experience with the design and refurbishment of the artificial sky in the SAS daylight laboratory
(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 ... -
Home Lighting: A Challenge to Improve and Standardise
(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 ...