2018 VII. Lighting Conference of the Visegrad Countries (Lumen V4)最新文献_第5页

Meaning of Scotopic/Photopic Ratio of Light Sources in Lighting of Outdoor Spaces 光源暗/光比在室外空间照明中的意义

2018 VII. Lighting Conference of the Visegrad Countries (Lumen V4) Pub Date : 2018-09-01 DOI: 10.1109/LUMENV.2018.8521093

J. Maziarka, L. Beňa, H. Wachta

引用次数: 2

Application of Arduino Platform for Light Field Analysis Arduino平台在光场分析中的应用

2018 VII. Lighting Conference of the Visegrad Countries (Lumen V4) Pub Date : 2018-09-01 DOI: 10.1109/LUMENV.2018.8521176

Marek Bńlský, Michal Kozlok, R. Bayer

引用次数: 4

A Concept of an Adaptive Luminaire with Variable Luminous Intensity Distribution 可变光强分布自适应灯具的概念

2018 VII. Lighting Conference of the Visegrad Countries (Lumen V4) Pub Date : 2018-09-01 DOI: 10.1109/LUMENV.2018.8520989

M. Leśko, H. Wachta, K. Baran, A. Różowicz

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引用次数: 3

Conference Chairman 会议主席

2018 VII. Lighting Conference of the Visegrad Countries (Lumen V4) Pub Date : 2018-09-01 DOI: 10.1109/lumenv.2018.8521067

P. Arató

引用次数: 1

Light Measuring - Since Rumford to This Day 光测量-从拉姆福德到今天

2018 VII. Lighting Conference of the Visegrad Countries (Lumen V4) Pub Date : 2018-09-01 DOI: 10.1109/lumenv.2018.8520970

Tomas Maixner

引用次数: 1

The Floodlighting Design System Based on the Object's Daytime Photography 基于物体日间摄影的泛光灯照明设计系统

2018 VII. Lighting Conference of the Visegrad Countries (Lumen V4) Pub Date : 2018-09-01 DOI: 10.1109/LUMENV.2018.8521001

R. Krupiński

{"title":"The Floodlighting Design System Based on the Object's Daytime Photography","authors":"R. Krupiński","doi":"10.1109/LUMENV.2018.8521001","DOIUrl":"https://doi.org/10.1109/LUMENV.2018.8521001","url":null,"abstract":"The article presents a solution to the problem of work and time consuming of the objects floodlighting projects creation. Currently, the only technically correct methods for creating such projects are a three-dimensional computer simulation using photometric files of luminaires or field trials using real equipment. Both of these methods have their advantages, but also many disadvantages. Among architects, in turn, a popular method of floodlighting designing is graphic processing of daytime or evening images objects. The method is relatively fast and it gives photorealistic effects but it is technically incorrect. An architect or graphic designer creates a picture that is attractive to the eye, but usually has nothing to do with reality. This is due to the fact that the lighting parameters of both lighting equipment and analyzing this type of project in terms of technology are not taken into account. The article presents a solution to this problem. It describes a system created especially for this purpose based on a dedicated computer application that allows simulation of the object floodlighting using its daily photograph. This is technically correct simulation, because it uses photometric files of luminaires. The system allows correction of basic photometric parameters: editing of photometric files, luminous flux, light in different directions, color temperature and the use of color filters. The computer application also enables photo editing, geometric correction, measurement and defining reflection and transmission properties of materials from which the object is actually built. Full lighting analysis is also possible and is based on luminance and illuminance distributions generated in the false color scale and measurements in points and selected areas. The advantages, disadvantages and limitations of the developed system are presented.","PeriodicalId":389317,"journal":{"name":"2018 VII. Lighting Conference of the Visegrad Countries (Lumen V4)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128852863","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 Adaptive and Monoculture Oriented LEDs Lamp 一种自适应单文化led灯

2018 VII. Lighting Conference of the Visegrad Countries (Lumen V4) Pub Date : 2018-09-01 DOI: 10.1109/LUMENV.2018.8521161

M. Gilewski

引用次数: 3

Lighting Design Using Ray Tracing 使用光线追踪的灯光设计

2018 VII. Lighting Conference of the Visegrad Countries (Lumen V4) Pub Date : 2018-09-01 DOI: 10.1109/LUMENV.2018.8521111

J. Skoda, Martin Motyčka

引用次数: 1

Evaluation of the Hazard Caused by Blue Light Emitted by LED Sources LED光源蓝光危害评价

2018 VII. Lighting Conference of the Visegrad Countries (Lumen V4) Pub Date : 2018-09-01 DOI: 10.1109/LUMENV.2018.8521150

A. Pawlak

{"title":"Evaluation of the Hazard Caused by Blue Light Emitted by LED Sources","authors":"A. Pawlak","doi":"10.1109/LUMENV.2018.8521150","DOIUrl":"https://doi.org/10.1109/LUMENV.2018.8521150","url":null,"abstract":"The first part of the paper discusses the positive and negative effects of blue light on humans. Then, the paper presents standardized methods of evaluation of potential hazards related to optical radiation emitted by light sources and a diagram of classification of light sources in terms of photobiological hazard. The methods covered in the standard EN 62471 and in the technical report IEC TR 62778:2014 constitute a breakthrough in treating light sources and luminaires as factors that may be significantly harmful to human health in certain conditions. These documents contain explanations and guidelines on evaluating the hazard from blue light emitted by lighting products which mainly emit optical radiation in the visible spectrum. Based on the measurements of photobiological safety based on methods described in the standard EN 62471 we can obtain information about a product and can assign it to one of the four hazard groups. Then, the paper presents the results of blue radiation measurements for the selected types of LED sources, especially those emitting cold colour of light. This is followed by a summary list of blue light hazard for three LED sources - emitting warm, neutral and cold colour of light. Conclusions concerning the safety of use of LED sources were drawn on the basis of analysis of normative documents and results of measurements.","PeriodicalId":389317,"journal":{"name":"2018 VII. Lighting Conference of the Visegrad Countries (Lumen V4)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115523405","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

Radiation of the Luminous Flux Into the Upper Half-Space in Wils - Building Design 建筑设计中光通量向上半空间的辐射

2018 VII. Lighting Conference of the Visegrad Countries (Lumen V4) Pub Date : 2018-09-01 DOI: 10.1109/LUMENV.2018.8521116

P. Becak, T. Novák, Richard Baleja, K. Sokanský

{"title":"Radiation of the Luminous Flux Into the Upper Half-Space in Wils - Building Design","authors":"P. Becak, T. Novák, Richard Baleja, K. Sokanský","doi":"10.1109/LUMENV.2018.8521116","DOIUrl":"https://doi.org/10.1109/LUMENV.2018.8521116","url":null,"abstract":"The article focuses on the further verification of the software goniophotometer in the BUILDING DESIGN computational program in terms of the possibility of calculating the radiation of the liminous flux flowing into the upper half-space from public lighting systems [1]. Software goniophotometer was tested by the previous verification for the accuracy of calculations of the direct and indirect component of luminaire luminous flux. The superstructure was conceived as the possibility of inserting a network of calculating points in the shape of a sphere. We can imagine the points showing normal illuminance towards the centre of the sphere as a lux meter sensor. The system thus designed duplicates the function of a real goniophotometer, a photometric laboratory instrument that measures luminous intensity or luminous intensity curves. The principle of a goniophotometer is that it allows to measure the luminous intensity in different planes and at different angles, which can be easily interpreted by a sphere with a network of calculation points. The density of the calculation points can be entered in an angular step according to the standard luminaire measurement plan C, y. The goal of implementing such a network of calculation points is to extend the possibilities of a computational program for modelling the luminous intensity curves of existing luminaires as well as newly composed luminaires. The main goal is calculating the radiation of the liminous flux flowing into the upper half-space from the outdoor lighting systems. It will be the basis for further astronomical calculations that focus on distracting light and increased sky luminance. Based on the testing, it will be possible to create model of lighting system in some city or district of the city by inserting LDT data of real luminaires, thus creating a real lighting system with real building models. From the resulting model, it will be possible to quantify the proportion of the direct and indirect luminous flux flowing into the upper half-space.","PeriodicalId":389317,"journal":{"name":"2018 VII. Lighting Conference of the Visegrad Countries (Lumen V4)","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117232852","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: 3