Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "Lighting" wg kryterium: Temat

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 21
Tytuł:
Strategies influencing energy efficiency of lighting solutions
Autorzy:
Pracki, P.
Wiśniewski, A.
Czyżewski, D.
Krupiński, R.
Skarżyński, K.
Wesołowski, M.
Czaplicki, A.
Powiązania:
https://bibliotekanauki.pl/articles/201458.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
lighting technology
interior lighting
road lighting
floodlighting
energy efficiency
Opis:
Lighting technologies developed significantly in the last decade. New LED light sources, dedicated luminaires and improved lighting control techniques gave rise to new possibilities in improving energy efficiency of lighting solutions. The article is an overview of interior, road and exterior architectural object lighting design strategies. It also presents design considerations that directly impact lighting conditions and energy eff iciency. Practical examples of the application of basic design strategies, accompanied by the obtained energy results, are also depicted. Issues discussed in the article may be useful in researching and designing interior and road lighting, as well as f loodlighting. They can also be useful in planning and implementing strategies aimed at improving lighting conditions and energy efficiency of lighting solutions.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2020, 68, 4; 711-719
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Concept and implementation of adaptive road lighting concurrent with vehicles
Autorzy:
Zalewski, S.
Pracki, P.
Powiązania:
https://bibliotekanauki.pl/articles/200253.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
lighting technology
road lighting
lighting control
light emitting diodes
Opis:
The paper presents the authors’ concept of an adaptive road lighting that is concurrent with vehicles moving on roads. The lighting system is based on luminaires with light emitting diodes. The authors describe the operation of the adaptive road lighting system and point out benefits and limitations of the solution. The theoretical considerations are supported by an analysis of the installed and working system that was implemented at Bożeny street in Poznan, Poland. The system was also evaluated by the residents living near the street.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2019, 67, 6; 1117-1124
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Miejskie projekty oświetleniowe w kontekście rewitalizacji
Urban Lighting in the Context of Regeneration Processes
Autorzy:
Sokół, Natalia
Rusek, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/2020976.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Lighting master planning
revitalization
urban lighting
Źródło:
Studia komitetu przestrzennego zagospodarowania kraju PAN; 2018, 192; 475-491
0079-3507
Pojawia się w:
Studia komitetu przestrzennego zagospodarowania kraju PAN
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The impact of room and luminaire characteristics on general lighting in interiors
Autorzy:
Pracki, P.
Powiązania:
https://bibliotekanauki.pl/articles/201481.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
lighting technology
interior lighting
energy efficiency
Opis:
General lighting is the most common way of illuminating interiors and the source of electricity consumption in buildings. This fact forces the search for lighting solutions effective both for people and the environment. In this study the impact of room and luminaire characteristics on general lighting conditions and energy efficiency in interiors is considered. In rooms of different sizes and reflectances, seventeen luminaire types with various light distributions were arranged in uniform layouts. The levels of average illuminance, uniformity and normalised power density related to two horizontal working planes were calculated. The impact of working plane reduction, room index and reflectances, lighting class and luminous intensity distribution of luminaire on the considered parameters was investigated. The use of the reduced working plane resulted in the increase in the average illuminance (7.7% on average), uniformity (33% on average) and normalised power density (23% on average). The impact of the room index and lighting class on the average illuminance and normalised power density was significant while the impact of the luminaire luminous intensity distribution and room reflectances was low. The normalised power density levels of the general electric lighting in interiors, with luminaire luminous efficacy of 100 lm/W, are in the following range: 1.08‒3.42 W/m2 per 100 lx. Based on these results a normalised power density level of 2 W/m2 per 100 lx is recommended for designing and assessing the new general electric lighting systems in buildings.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2020, 68, 3; 447-457
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of residential lighting in Poland: results from a winter term survey
Autorzy:
Pracki, Piotr
Aslanoglu, Rengin
Kazak, Jan K.
Ulusoy, Begüm
Yekanialibeiglou, Sepideh
Powiązania:
https://bibliotekanauki.pl/articles/2173716.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
lighting technology
interior lighting
residential lighting
daylighting
artificial lighting
survey
technologia oświetleniowa
oświetlenie wewnętrzne
oświetlenie mieszkań
światło dzienne
oświetlenie sztuczne
badania ankietowe
Opis:
In 2020, an international project on residential lighting started and was implemented in four countries (Poland, Sweden, UK and Turkey). This article presents the results of a survey carried out in Poland, in the winter term between November 2020 and January 2021. A total of 125 Polish residents (59 women, 65 men, one person did not wish to specify gender) participated in the survey. A variety of data was collected on the respondents and their assessments as well as on their satisfaction with day- and artificial lighting in residential living spaces. The results from questionnaires were analyzed with STATISTICA 13.3. Descriptive statistics and Spearman rank order correlations were adopted to identify the light-related aspects, lighting patterns, and respondents’ perception of day- and artificial lighting conditions in living areas. The results revealed that satisfaction with daylighting in the living area, both in summer and winter, was significantly correlated with daylighting level, daylighting uniformity, sunlight exposure and view-out. The results also revealed that satisfaction with artificial lighting was significantly correlated with artificial lighting level, artificial lighting uniformity and color rendering. The results provide valuable information on lighting and factors that influence the luminous environment in residential living spaces.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2022, 70, 6; art. no. e143107
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Method for evaluating discomfort glare based on the analysis of a digital image of an illuminated interior
Autorzy:
Błaszczak, U. J.
Powiązania:
https://bibliotekanauki.pl/articles/220384.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
discomfort glare
measurement
lighting
analysis
Opis:
The article proposes a method for measuring discomfort glare which uses numerical description of the phenomenon in the form of a digital luminance distribution map recorded on a CCD array. Essential procedures for determining partial quantities which are necessary for calculation of UGR index are discussed in detail, along with techniques for measuring position index and size of light sources, with regard to the parameters of the registering system and coordinates of the images of the sources on the array.
Źródło:
Metrology and Measurement Systems; 2013, 20, 4; 623-634
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Calculations of energy savings using lighting control systems
Autorzy:
Wiśniewski, A.
Powiązania:
https://bibliotekanauki.pl/articles/200771.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
light management systems
LED lamps
LED modules
LED luminaires
lighting technology
interior lighting
energy efficiency
Opis:
The development of technology and design of light management systems remains dynamic. Among all the benefits offered by these systems, the most valuable might definitely be the possibility of saving energy consumption. Knowing the value of energy savings is the key factor that users need to know before deciding to use a lighting management system (the type of light management system). For this purpose, it is useful to simulate the operation of the lighting control system, for example in the DIALux program. Such simulation helps evaluate potential savings in electricity consumption using the proposed lighting control system. In the DIALux program, it is possible to change the luminous flux value of luminaires. In such a case, it becomes possible to semi-simulate the light management system’s operation as we don’t receive actual information on reducing installed power of the lighting system during reduction of the luminous flux value of luminaires. This article shows what type of technical data are important to use for the DIALux program to properly and accurately simulate light management systems and to receive accurate data on energy saving. It also presents the results of photometrical and electric parameter measurements (Φ – luminous flux, P – power, PF – power factor, THDi – total harmonic distortion of current). The article discusses the power control characteristics obtained on the basis of these measurements and explores the source of differences between simulation of energy saving calculations and real measured energy savings. An existing lighting control system installed in an office reception area was used to compare calculations with the real value of energy consumption reduction. The impact of electronic power and control systems on electrical network parameters is also an important problem mentioned in this article. It also explores the effect of power regulation of LED luminaires and LED modules on the value of the power factor and total harmonic distortion (current) value (THDi).
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2020, 68, 4; 809-817
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Methods for designing and simulating optical systems for luminaires
Autorzy:
Żagan, W.
Zalewski, S.
Słomiński, S.
Kubiak, K.
Powiązania:
https://bibliotekanauki.pl/articles/200462.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
lighting technology
optical systems design
luminance modelling
LID calculations
Opis:
This paper presents modern methods for designing optical systems for luminaires in the context of long years of light sources development. It shows that the development of technology for producing increasingly precise optical systems has led to an evolution in the construction of luminaires with increased efficacy and utilizing more efficiently the features of a specific family of light sources. Methods for designing and modelling optical systems with the use of mathematical curves as well as advanced the free-forming method are described. The paper also shows methods for modelling light sources features, especially luminance ones, designed to make precise simulation calculations required in any luminaire design process. Knowledge of luminance distributions of light sources and precise luminance distributions of optical systems for luminaires raises the design process to a very high level, enabling positive modern light source features, such as high luminance and their small dimensions, to be used consciously while minimizing negative ones, such as discomfort glare, caused by luminaires. The paper presents the results of simulation calculations and laboratory measurements for a selected case of luminaire equipped with a discharge lamp of maximum luminance exceeding 30 million cd/m2.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2020, 68, 4; 739-750
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Advanced modelling and luminance analysis of LED optical systems
Autorzy:
Słomiński, S.
Powiązania:
https://bibliotekanauki.pl/articles/200561.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
lighting technology
luminance distribution
luminance modelling
LED
optical systems design
Opis:
Designing, optimizing and analyzing optical systems as part of the implementation process into production of modern luminaires require using advanced simulation and computational methods. The progressive miniaturization of LED (light emitting diode) chips and growth in maximum luminance values, achieving up to 108 cd/m2, require constructing very accurate geometries of reflector and lens systems producing complex luminous intensity distributions while reducing discomfort glare levels. Currently, the design process cannot function without advanced simulation methods. Today’s simulation methods in the lighting technology offer very good results as far as relatively large conventional light sources such as halogen lamps, metal halide lamps and high pressure sodium lamps are concerned. Unfortunately, they often fail in the case of chip-on-board LED light sources whose luminous surface dimensions are increasingly often contained inside a cube of the side length below 1mm. With the high sensitivity of such small chips and lenses with dimensions ranging from a just a few to between 10 and 20 mm, which is presented in this paper, modern luminance distribution measurement methods, luminance modelling and ray tracing methods should be used to minimize any errors arising from incorrectly projecting the design in the final physical model. Also, very importantly, focus should be directed towards reducing a chance of making a mistake while collimating the position of the light source inside the optical system. The paper presents a novel simulation calculation method enriched with an analysis of optical system sensitivity to a light source position. The results of simulation calculations are compared with the results of laboratory measurements for corresponding systems.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2019, 67, 6; 1107-1116
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of selected parameters of compact fluorescent lamps during their long-term operation
Autorzy:
Tabaka, Przemyslaw
Rózga, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/220694.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
lighting technology
compact fluorescent lamp
energy efficiency
light source
luminous flux
Opis:
This article is focused on considerations based on experimental studies concerning changes of selected parameters of identical compact fluorescent lamps (CFLs) intended for use in buildings during their operation. The studies constituted a long-term experiment whose goal was an evaluation of selected operating parameters of the CFLs in terms of meeting the requirements set out in the specified regulations as well as the issue of marking the lamps with the energy efficiency class. The measurements were performed with the authors’ experimental setup consisting of original equipment designed and made especially for the purpose of the measurements. The studies covered registration of the luminous flux as well as selected electrical parameters such as active power, current and the power factor during the so-called “start-up time” and operation time equal to 100 h, 500 h, 1000 h, 2000 h, etc. with a 1000 h step. The studies were finished with the moment of natural burnout of the CFLs tested. The results showed that the biggest drawback of CFLs is lack of preservation of the required time to reach 60% of the stabilized luminous flux just after short time of lamp operation. Similarly when assessing the conformity of the parameters declared by the manufacturer that have been verified, it can be stated that they are true only at the initial stage of lamp operation.
Źródło:
Metrology and Measurement Systems; 2020, 27, 3; 541-557
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of Economical Lighting of Highways in the Environment of SMOL Language
Autorzy:
Kowalczuk, Z.
Wszołek, J.
Powiązania:
https://bibliotekanauki.pl/articles/220666.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
lighting systems
economical factors
engineering systems
monitoring
domain languages
modelling and simulation environment
Opis:
The paper puts forward and implements a method of designing and creating a modelling simulation environment for extensive and complete analysis of economical lighting on highways. From a general design viewpoint, the proposed solution explores the concept of a network description language (SMOL), which has been designed to describe the necessary network functions, mechanisms, and devices for the purpose of their computer simulation and verification. The presented results of the performed research confirm the usability of intelligent lighting on highways, both in the sense of the design concept and in the aspect of saving energy.
Źródło:
Metrology and Measurement Systems; 2017, 24, 3; 473-488
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the results of the audit of lighting parameters at pedestrian crossings in Warsaw
Autorzy:
Tomczuk, Piotr
Chrzanowicz, Marcin
Mackun, Tomasz
Budzyński, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/1955162.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
lighting
pedestrian crossings
audit
road
safety
oświetlenie
przejście dla pieszych
audyt
droga
bezpieczeństwo
Opis:
The night time, based on many world studies, generates an increased risk of serious accidents (with fatalities and serious injuries). This is especially true for accidents with pedestrians. Pedestrian crossings are very sensitive to the influence of the time of day in terms of pedestrian safety, elements of road infrastructure. This is visible on the example of Poland, where numerous accidents at crosswalks are recorded, characterized by high severity at night. Road infrastructure managers take corrective actions to improve this condition. An example of such work is the Road Safety Audit (RSA), initiated in 2016 by the Municipal Roads Management Board in Warsaw. The analyses carried out by the authors, among others, in the years 2016 - 2019, included pedestrian crossings without traffic lights located on roads managed by ZDM (Municipal Roads Authority) in twelve districts: Bemowo, Bielany, Mokotów, Ochota, Praga Południe, Praga Północ, Śródmieście, Targówek, Ursynów, Wawer, Włochy, Żoliborz. The assessment was carried out in terms of the correct lighting of these passages, traffic organization, geometry and environmental impact. The main aim of the article is to present a methodology for evaluating the technical condition of road lighting infrastructure on a large scale (e.g. district, city). The article discusses the general and detailed state of pedestrian safety in Poland against the background of research conducted in Warsaw. The procedure of inspection and assessment of the state of lighting of pedestrian crossings is described and selected results are presented. On the basis of a detailed analysis of the results of individual pedestrian crossings, the general condition of the tested crossings was assessed and recommendations were indicated. An attempt was made to assess the influence of pedestrian crossings lighting on the general state of road safety. A critical evaluation of the obtained effects was made. The utilitarian aim of the article is to apply the described methodology in other cities and to use the results of the conducted analyses to plan and implement road investments in the field of modernization of lighting at pedestrian crossings on a large scale.
Źródło:
Archives of Transport; 2021, 59, 3; 21--39
0866-9546
2300-8830
Pojawia się w:
Archives of Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of lighting on exterior scaffoldings at different times of day
Analiza oświetlenia słonecznego na rusztowaniach zewnętrznych w różnych porach dnia
Autorzy:
Szer, Iwona
Szer, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/2174025.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
oświetlenie
równomierność oświetlenia
zmienność
rusztowanie
pracownik budowlany
construction worker
illuminance
variability
lighting uniformity
scaffolding
Opis:
Lighting of the workplaces has a large impact on safety, proper vision comfort and visual efficiency. The aim of this article is to present an analysis of the lighting of the workplaces of people working on scaffoldings. The researches were carried out on 23 frame-type facade scaffoldings. The scaffoldings were examined from March to October 2017. Due to the specificity of works performed on scaffoldings, the researches were carried out in accordance with an individually adapted research program. The study analyzed the illuminance at particular points and variability in the lighting uniformity in a given workspace. Analysis of the obtained results showed a large variability in illuminance in workplaces of people working on scaffoldings. The measured illuminance levels in the workspaces on the one hand were higher than the minimum illuminance levels defined by the construction site standards, but on the other hand, illuminance levels that may dazzle the employees were also recorded. The luminous intensity depended on the season, time of day, location of the scaffolding, as well as the presence of a protective net installed on the scaffolding, which reduced the occurrence of values that could lead to situations in which the worker could be dazzled. The protective net installed on the scaffolding also reduces the differences in lighting in the scaffolding workspace, improving the lighting conditions of the workplaces.
Oświetlenie miejsc pracy ma duży wpływ na bezpieczeństwo, właściwy komfort widzenia, czy wydolność wzrokowa. Celem artykułu jest przedstawienie analizy oświetlenia miejsc pracy osób pracujących na rusztowaniach. Badania przeprowadzono na 23 ramowych, elewacyjnych rusztowaniach budowlanych stojących przy ścianach zewnętrznych budynków. Rusztowania zlokalizowane były w 6 województwach: mazowieckim, wielkopolskim, pomorskim, opolskim, kujawsko-pomorskim, i małopolskim. Rusztowania badane były w terminie od marca do października 2017 roku. Ze względu na specyfikę prac wykonywanych na rusztowaniach budowlanych, badania przeprowadzono zgodnie z indywidualnie dostosowanym programem badawczym. Pomiary na każdym rusztowaniu wykonywane były przez pięć dni tygodnia w trzech porach dnia dostosowanych do pracy większości pracowników na budowach, pierwsza od godziny 8, druga od godziny 11 i trzecia od godziny 14.W każdym dniu i w każdej porze dnia badania przeprowadzono minimum w trzech i maksimum w dwunastu polach rusztowania. Liczba pól pomiarowych zależała od szerokości i wysokości rusztowania oraz od dostępności. Pomiary zostały wykonane przy użyciu urządzenia wielofunkcyjnego KIMO AMI 310, do którego podłączone były: na stałe moduł atmosferyczny MCC rejestrujący temperaturę powietrza, wilgotność względną, ciśnienie atmosferyczne oraz sondy SLU do pomiaru natężenia oświetlenia. W pracy analizowano natężenie oświetlenia w poszczególnych punktach oraz zmienność oświetlenia pola. Analiza wyników wykazała dużą zmienność natężenia oświetlenia miejsc pracy osób pracujących na rusztowaniach.
Źródło:
Archives of Civil Engineering; 2022, 68, 3; 139--154
1230-2945
Pojawia się w:
Archives of Civil Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Exploitation research of trams head lighting - low beam lights
Badania eksploatacyjne oświetlenia głównego tramwaju - świateł mijania
Autorzy:
Tomczuk, P.
Powiązania:
https://bibliotekanauki.pl/articles/224335.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
oświetlenie tramwaju
światła mijania
badania eksploatacyjne
tram's head lighting
low beam lights
CCD camera
luminance
Opis:
Appropriately shaped light beam conditions correct visibility from a tram driver's seat and makes it easier to assess properly road situations connected with behaviour of other road traffic participants. The article presents the current state of tram's front lighting. Projectors and reflectors have been tested together with the sources of light currently exploited in tram vehicles. The present photometric requirements as well as the legal state concerning exploitation of lighting in trams have been described. Qualitative analysis has been conducted of currently used light beams of low beam lights with the use of image analyzer of CCD camera for luminance measurement. A method of luminance measurement on photometric screen has been described. Comparative results have been presented of luminance measurement in measurement points and zones on the borderline of light and shade, and on the glare line of a tram driver coming from the opposite direction.
Odpowiednio ukształtowana wiązka świetlna warunkuje właściwą widzialność z miejsca motorniczego i ułatwia właściwą ocenę sytuacji drogowych związanych z zachowaniem się innych uczestników ruchu drogowego. W artykule zaprezentowany został obecny stan oświetlenia przedniego tramwajów. Przebadano projektory i reflektory wraz ze źródłami światła eksploatowanymi obecnie w pojazdach tramwajowych. Opisano aktualne wymagania fotometryczne oraz stan prawny dotyczący eksploatacji oświetlenia w tramwajach. Dokonana została jakościowa analiza wykorzystywanych obecnie wiązek świetlnych świateł mijania z zastosowaniem analizatora obrazu kamery CCD do pomiaru luminancji. Opisano metodę pomiaru luminancji na ekranie fotometrycznym. Zaprezentowano wyniki porównawcze pomiarów luminancji w punktach i strefach pomiarowych, na granicy światła i cienia oraz na linii blasku dochodzącego do motorniczego z naprzeciwka.
Źródło:
Archives of Transport; 2010, 22, 4; 477-494
0866-9546
2300-8830
Pojawia się w:
Archives of Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Digital luminance photometry in the context of the human visual system
Autorzy:
Słomiński, Sebastian
Powiązania:
https://bibliotekanauki.pl/articles/2173705.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
human vision
luminance distribution measurements
glare
lighting technology
widzenie ludzkie
pomiar rozkładu luminancji
blask
technologia oświetleniowa
Opis:
Almost all solutions in modern lighting systems are based on LED technology. Luminance and obvious ease of control are the key characteristics of this light source. At the same time, luminances at the level of 108 cd/m2 are a significant advantage of LED in design applications, where high luminous intensity amplification is important. However, in general and in road lighting applications, LED luminaires represent a source of potential discomfort glare. Unfortunately, lighting technology’s metrology lags behind LED parameter development and optimization. The results of luminance measurements of the same luminaires, made with a luminance camera and meters with a measuring field, differ. The differences even appear for the same imaging luminance measuring devices with different lenses. This article presents the results of experiments and detailed analyzes related to modern digital luminance photometry based on the use of digital image sensors. Luminance tests were conducted on multi-source research models of luminaires. Traditional luminance measuring equipment with a measuring field was used in the experiment. The research was also supplemented with the measurements made using CCD/CMOS luminance cameras with selected components where the angular field of view of each pixel was a 0.45 min arc corresponding to the highest average human sight parameters. The results confirm that the average luminance value for multi-source luminaires depends on the measurement system configuration. It has been proposed to standardize the angular field of view parameters of all measurement systems, where the measurement aims to obtain a value that directly relates to human visual impressions (e.g. glare).
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2022, 70, 5; art. no. e143103
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 21

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies