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Proceedings of the Conference CIE 2021最新文献

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ARE THE DEMANDS IN ENTERTAINMENT LIGHTING TOO HIGH FOR WHITE LIGHT EMITTING DIODES? 娱乐照明对白光二极管的要求太高了吗?
Proceedings of the Conference CIE 2021 Pub Date : 2021-12-06 DOI: 10.25039/x48.2021.po04
M. Nilsson Tengelin, N. Mylly, P. Hedekvist
{"title":"ARE THE DEMANDS IN ENTERTAINMENT LIGHTING TOO HIGH FOR WHITE LIGHT EMITTING DIODES?","authors":"M. Nilsson Tengelin, N. Mylly, P. Hedekvist","doi":"10.25039/x48.2021.po04","DOIUrl":"https://doi.org/10.25039/x48.2021.po04","url":null,"abstract":"This paper reports the result of a survey on entertainment lighting distributed to 246 museums and 56 theatres in Sweden. The questions concerned the lighting technology used, experience from changing lighting systems, plans, problems, apprehensions and expectations. The replies showed that the transition to LED has been much faster in museums than in theaters and 35% of the theatres do not plan for a transition to LED. Reasons given are economy, light quality, and dimming functionality. Lighting professionals are generally sceptical in exchanging halogen lights. The artistic expression in lighting design goes beyond the specifications and what is promised in the data sheet. To facilitate a smoother transition to modern lighting technologies, the quality of the white light and proper function of the luminaires must be ensured and the communication between the manufacturers, retailers, lighting professionals and other artistic functions must be improved.","PeriodicalId":363368,"journal":{"name":"Proceedings of the Conference CIE 2021","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123560773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
THE ROLE OF DAYLIGHT IN LIBRARY USERS’ SEAT PREFERENCES 日光对图书馆用户座位偏好的影响
Proceedings of the Conference CIE 2021 Pub Date : 2021-12-06 DOI: 10.25039/x48.2021.op24
G. Izmir Tunahan, H. Altamirano, J. Unwin Teji
{"title":"THE ROLE OF DAYLIGHT IN LIBRARY USERS’ SEAT PREFERENCES","authors":"G. Izmir Tunahan, H. Altamirano, J. Unwin Teji","doi":"10.25039/x48.2021.op24","DOIUrl":"https://doi.org/10.25039/x48.2021.op24","url":null,"abstract":"Seating that meets the needs and preferences of students can promote a longer stay in libraries and keep students motivated, which in turn influences their emotions and learning abilities. However, existing knowledge on the interaction between daylighting and seating preferences is limited. This study aims to understand what type of spaces are in more demand and the relationship between seat occupancy and daylight availability. Occupancy data of the UCL Bartlett library acquired from motion sensors located underneath each desk was used to assess occupancy, which was then compared to characteristics of space, including daylight availability. The study revealed that although daylight has a considerable impact on students’ seat selection, the seating preference of the students cannot be explained by daylight alone. The seats with a good combination of daylight, outdoor view and privacy are in more demand compared to seats that provide only a high level of daylight. Future research should involve individual perception in addition to occupancy monitoring data, considering daylight conditions together with other components such as privacy, outdoor views, and quietness.","PeriodicalId":363368,"journal":{"name":"Proceedings of the Conference CIE 2021","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123892097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
EFFECT OF LIGHT SOURCE DISTANCE ON THE DISCRIMINATION AND GLOSS PERCEPTION OF PAPER 光源距离对纸张分辨和光泽度感知的影响
Proceedings of the Conference CIE 2021 Pub Date : 2021-12-06 DOI: 10.25039/x48.2021.op11
X. Zhu, S. Inoue, H. Sato, Y. Mizokami
{"title":"EFFECT OF LIGHT SOURCE DISTANCE ON THE DISCRIMINATION AND GLOSS PERCEPTION OF PAPER","authors":"X. Zhu, S. Inoue, H. Sato, Y. Mizokami","doi":"10.25039/x48.2021.op11","DOIUrl":"https://doi.org/10.25039/x48.2021.op11","url":null,"abstract":"Gloss is an essential visual property of objects. It is still controversial how well gloss constancy works under different light distributions. In this paper, we conducted three experiments of different light distributions to investigate whether the stable discrimination and gloss constancy of paper occurred with different glossiness levels at the different light source distances and illuminances. The results suggest instability of paper discrimination and gloss perception when both light source distance and illuminance change. Then we tested two additional conditions. One is setting the distance the same and manipulating the illumination. The other is setting the illuminance constant and manipulating the distance, respectively. We further verify that illuminance and specular reflection can affect material and gloss perception, regardless of the width of the highlight region changed by light source distance.","PeriodicalId":363368,"journal":{"name":"Proceedings of the Conference CIE 2021","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121020096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
DAYLIGHT GLARE PROBABILITY PREDICTION FOR AN OFFICE ROOM 办公室内日光眩光概率预测
Proceedings of the Conference CIE 2021 Pub Date : 2021-12-06 DOI: 10.25039/x48.2021.op20
A. Mentens, Simon Martin, Filip Descamps, John Lataire, Valéry Jacobs, Ann
{"title":"DAYLIGHT GLARE PROBABILITY PREDICTION FOR AN OFFICE ROOM","authors":"A. Mentens, Simon Martin, Filip Descamps, John Lataire, Valéry Jacobs, Ann","doi":"10.25039/x48.2021.op20","DOIUrl":"https://doi.org/10.25039/x48.2021.op20","url":null,"abstract":"Glare assessments are currently made from High Dynamic Range (HDR) images taken from the Point Of View (POV) and viewing direction of a user. This paper analyses the feasibility to estimate the Daylight Glare Probability (DGP) at the user-level based on machine-learning techniques, sun position and a downward-pointing camera sensor mounted at the ceiling of a simulated office environment. Three different office cases have been considered: an empty room, an empty room with venetian blinds and a furnished room without venetian blinds. The influence of the sun direction has been considered as a parameter to predict the observer DGP. Subsequently, the best parameters have been selected to build a black box model using Artificial Intelligence (AI). Results show that, by using the DGP of the ceiling camera and the sun position, it is possible to accurately predict the DGP for an observer’s POV.","PeriodicalId":363368,"journal":{"name":"Proceedings of the Conference CIE 2021","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129832468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
ASSESSMENT OF ROAD LIGHTING PERFORMANCE FOR TRAFFIC INTENSITY AND TRAFFIC DETECTION BASED LIGHTING ADAPTATION 交通强度道路照明性能评估及基于交通检测的照明适应
Proceedings of the Conference CIE 2021 Pub Date : 2021-12-06 DOI: 10.25039/x48.2021.wp02
D. Gašparovský, P. Janiga
{"title":"ASSESSMENT OF ROAD LIGHTING PERFORMANCE FOR TRAFFIC INTENSITY AND TRAFFIC DETECTION BASED LIGHTING ADAPTATION","authors":"D. Gašparovský, P. Janiga","doi":"10.25039/x48.2021.wp02","DOIUrl":"https://doi.org/10.25039/x48.2021.wp02","url":null,"abstract":"Amongst many road lighting design criteria, energy performance plays an important role as it has a direct link to operational costs, potential reduction of carbon dioxide emissions, mitigation of obtrusive light, and its impact on the night-time environment in urban and con-urban settlements. The energy energy performance of road lighting is conveniently described by the pair of normative numerical indicators PDI and AECI established in European standards. This paper aims to present typical values of the AECI (Annual Energy Consumption Indicator) for different combinations of road arrangements, road widths, lighting classes and light source technologies to illustrate what benchmarks can be expected using this assessment system. Essential part of this paper is focusing on assessment of the performance for traffic intensity and traffic detection based lighting adaptation.","PeriodicalId":363368,"journal":{"name":"Proceedings of the Conference CIE 2021","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128559942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
TOWARDS AN IMPROVED V-VLC OPTICAL CHANNEL MODELLING 改进的v-vlc光通道建模
Proceedings of the Conference CIE 2021 Pub Date : 2021-12-06 DOI: 10.25039/x48.2021.po57
Guillaume Mario Dotreppe, Jan Coosemans, V. Jacobs
{"title":"TOWARDS AN IMPROVED V-VLC OPTICAL CHANNEL MODELLING","authors":"Guillaume Mario Dotreppe, Jan Coosemans, V. Jacobs","doi":"10.25039/x48.2021.po57","DOIUrl":"https://doi.org/10.25039/x48.2021.po57","url":null,"abstract":"Visible Light Communication (VLC) requires better optical channel modelling if it is to be used in vehicular applications. Therefore, the radiation transfer between the transmitter and emitter shall be well defined in all circumstances. An important aspect herein is the determination of the Limiting Photometric Distance (LPD), which characterises the transition between near-field and far-field description of the light source. The LPD allows to determine whether simplified equations can be used in the V-VLC channel model. A first step towards this goal is the analysis of a simple, narrow beam, disk-source with uniform luminance. On-axis, analytical solutions exist. Off-axis, however, no closed loop solutions exist. Therefore, a numerical approach is used, which is validated against on-axis measurements and then expanded to off-axis scenarios. This allows to compute the on- and off-axis LPD of the light source, an important step towards a more accurate description of complex systems for VLC.","PeriodicalId":363368,"journal":{"name":"Proceedings of the Conference CIE 2021","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125901543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
TWO-DIMENSIONAL COLOUR APPEARANCE SCALES FOR COLOUR STIMULI HAVING HIGH DYNAMIC RANGE 具有高动态范围的颜色刺激的二维颜色外观尺度
Proceedings of the Conference CIE 2021 Pub Date : 2021-12-06 DOI: 10.25039/x48.2021.op45
Lv Xi, Luo Ming Ronnier
{"title":"TWO-DIMENSIONAL COLOUR APPEARANCE SCALES FOR COLOUR STIMULI HAVING HIGH DYNAMIC RANGE","authors":"Lv Xi, Luo Ming Ronnier","doi":"10.25039/x48.2021.op45","DOIUrl":"https://doi.org/10.25039/x48.2021.op45","url":null,"abstract":"New colour appearance scales close to daily experience and image quality enhancement are highly desired including whiteness, blackness, vividness and depth. This article describes a new experiment to accumulate the data under HDR (high dynamic range) conditions. The data were then used to test the performance of different colour appearance scales such as CIELAB and CAM16-UCS plus the recent extension by Berns’ Vab*, Dab*. The results showed those Berns’ scales gave reasonable performance. However, there was no scale capable of predicting colour appearance data covering a wide dynamic range. New scales were developed based on the absolute scales of brightness and colourfulness of CAM16-UCS and gave accurate prediction to the data.","PeriodicalId":363368,"journal":{"name":"Proceedings of the Conference CIE 2021","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127537108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
NEW ANTIMICROBIAL STRATEGIE USING COMPOSITIONS WITH PHOTOCATALYTIC PROPERTIES 利用具有光催化性能的组合物的新型抗菌策略
Proceedings of the Conference CIE 2021 Pub Date : 2021-12-06 DOI: 10.25039/x48.2021.op17
R. Bucuresteanu, M. Husch, M. Ioniță, V. Rădițoiu, V. Chihaia, C. Marcu, L. Dițu, G. Mihăescu
{"title":"NEW ANTIMICROBIAL STRATEGIE USING COMPOSITIONS WITH PHOTOCATALYTIC PROPERTIES","authors":"R. Bucuresteanu, M. Husch, M. Ioniță, V. Rădițoiu, V. Chihaia, C. Marcu, L. Dițu, G. Mihăescu","doi":"10.25039/x48.2021.op17","DOIUrl":"https://doi.org/10.25039/x48.2021.op17","url":null,"abstract":"The paper describes the studies started by an inter-disciplinary team in finding a disinfection method using a coating with photocatalytically activated antimicrobial properties by visible spectrum radiation. An own method of preparation led to the obtaining of a photocatalytic pigment based on copper-doped titanium dioxide to move the activation spectrum to the visible range. The preparation method was designed so as to allow transposition into industrial production. The demonstration and measurement of the photocatalytic effect for certification as an industrial product was done based on an adapted method, starting from two existing standards. A washable paint containing the photocatalytic pigment was tested \"in situ\", the results demonstrating the reduction of microbial load. The paper is based on current knowledge about light-activated antimicrobiological agents (LAAs) in an attempt to further the study of visible spectrum radiation, which in combination with a series of photosensitizers excited by this radiation, have the role of generating photocatalytic reactions with disinfection effect.","PeriodicalId":363368,"journal":{"name":"Proceedings of the Conference CIE 2021","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128298904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
DEVELOPMENT OF A METHOD FOR MEASURING PPFD DISTRIBUTION OVER THE TECHNOLOGICAL AREA OF A GREENHOUSE BY A MOBILE INSTALLATION 开发一种利用移动装置测量温室技术区域PPFD分布的方法
Proceedings of the Conference CIE 2021 Pub Date : 2021-12-06 DOI: 10.25039/x48.2021.po14
V. Panin, М.А. Fedorishchev
{"title":"DEVELOPMENT OF A METHOD FOR MEASURING PPFD DISTRIBUTION OVER THE TECHNOLOGICAL AREA OF A GREENHOUSE BY A MOBILE INSTALLATION","authors":"V. Panin, М.А. Fedorishchev","doi":"10.25039/x48.2021.po14","DOIUrl":"https://doi.org/10.25039/x48.2021.po14","url":null,"abstract":"A mobile installation for measuring the distribution of PPFD over the technological area of greenhouses has been implemented, and a measurement method has been developed using this installation. Mobile measurements were organized, according to the results of which, the errors in determining the average irradiance and uniformity of irradiation were established.","PeriodicalId":363368,"journal":{"name":"Proceedings of the Conference CIE 2021","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129919362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
AN OVERVIEW OF THE IMPACT OF STRAY LIGHT FROM COMMERCIAL GREENHOUSES 商业温室杂散光的影响概述
Proceedings of the Conference CIE 2021 Pub Date : 2021-12-06 DOI: 10.25039/x48.2021.po37
K. Bertin, G. Zissis, G. Salas, P. Raynham, A. Moutsi, S. Mucklejohn, B. Preston
{"title":"AN OVERVIEW OF THE IMPACT OF STRAY LIGHT FROM COMMERCIAL GREENHOUSES","authors":"K. Bertin, G. Zissis, G. Salas, P. Raynham, A. Moutsi, S. Mucklejohn, B. Preston","doi":"10.25039/x48.2021.po37","DOIUrl":"https://doi.org/10.25039/x48.2021.po37","url":null,"abstract":"Stray light from commercial greenhouses is becoming a significant problem causing disruption to wildlife activity and annoyance for local residents. To quantify the amount of stray light from a typical large greenhouse the authors have modelled several lighting installations based on a range of generic horticultural light sources. The impact of the stray light is dependent on the spectral power distribution of the sources employed, the intensity and distribution. Current standards for obtrusive light from outdoor work places do not seem to be suitable when applied to greenhouses.","PeriodicalId":363368,"journal":{"name":"Proceedings of the Conference CIE 2021","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131717666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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