The aim of this study is to draw attention to the light transmittance level of special glasses with low light transmission. Although it is known that the light transmittance of these special glasses is low, this study is important in terms of knowing the light transmission rate in question and what kind of light problems it causes in practice, because these special glasses can be used for road lighting in some special climatic conditions, for some experiments, or for the use of light in architectural designs. For this reason, it is important to know these special glasses light transmittance properties. As the light transmittance of the luminaire glasses increases, the amount of light on the road also increases. In other words, the light source or glass type affects the lighting performance of the road. The luminaire affects the light emitted from glass-type luminaires and reduces the luminous flux falling from the lamp to the road surface. For this reason, the lamp’s luminous flux with the appropriate power should be increased according to the light transmittance factor of the glasses. Otherwise, the conditions, specified in the CIE road lighting standards, cannot be met. For this purpose, luminaire glasses with different properties that can be used in road lighting were analysed according to their light transmittance of single glass (4 mm), double glass (4 mm), electrochromic glass (reflective), electrochromic glass (absorbent), and thermochromics glass. As a result, it has been determined that when the luminaires used in road lighting are without glass or the luminaire glasses are made of different materials, the lamps luminous fluxes should be increased according to the transmittance coefficient of the glasses.
{"title":"The Effects of Luminaire Glass Type on Road Parameters in Road Lighting","authors":"Sakir Parlakyıldız","doi":"10.33383/2022-101","DOIUrl":"https://doi.org/10.33383/2022-101","url":null,"abstract":"The aim of this study is to draw attention to the light transmittance level of special glasses with low light transmission. Although it is known that the light transmittance of these special glasses is low, this study is important in terms of knowing the light transmission rate in question and what kind of light problems it causes in practice, because these special glasses can be used for road lighting in some special climatic conditions, for some experiments, or for the use of light in architectural designs. For this reason, it is important to know these special glasses light transmittance properties. As the light transmittance of the luminaire glasses increases, the amount of light on the road also increases. In other words, the light source or glass type affects the lighting performance of the road. The luminaire affects the light emitted from glass-type luminaires and reduces the luminous flux falling from the lamp to the road surface. For this reason, the lamp’s luminous flux with the appropriate power should be increased according to the light transmittance factor of the glasses. Otherwise, the conditions, specified in the CIE road lighting standards, cannot be met. For this purpose, luminaire glasses with different properties that can be used in road lighting were analysed according to their light transmittance of single glass (4 mm), double glass (4 mm), electrochromic glass (reflective), electrochromic glass (absorbent), and thermochromics glass. As a result, it has been determined that when the luminaires used in road lighting are without glass or the luminaire glasses are made of different materials, the lamps luminous fluxes should be increased according to the transmittance coefficient of the glasses.","PeriodicalId":49907,"journal":{"name":"Light & Engineering","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135201182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The article describes different spectral engineering technologies for maximum accuracy of museum exhibit colour rendering. Based on their own experience and studies, the authors present a detailed review of improvement of phosphor’s application for production of LED: their characteristics, features, and problems. A special consideration is given to a brand-new approach: application of semiconductor nanoparticles, the quantum dots. The key issue is to increase the quantum efficiency, specific features of spectral engineering are considered relative to the Planck curve, as well as the implemented special binning standard. The entire material is illustrated by practical examples such as the projects implemented by Lumileds in the Rijksmuseum as well as by MDM–Light in the State Hermitage Museum, Surround Art Gallery, Buzeon, ILONA-K Artspace. Substantiated technical solutions for establishment of an ideal museum lighting system are presented.
{"title":"Invisible Power of Light: Spectral Engineering Experience in Exhibition Lighting","authors":"Tatiana V. Trishina","doi":"10.33383/2022-060","DOIUrl":"https://doi.org/10.33383/2022-060","url":null,"abstract":"The article describes different spectral engineering technologies for maximum accuracy of museum exhibit colour rendering. Based on their own experience and studies, the authors present a detailed review of improvement of phosphor’s application for production of LED: their characteristics, features, and problems. A special consideration is given to a brand-new approach: application of semiconductor nanoparticles, the quantum dots. The key issue is to increase the quantum efficiency, specific features of spectral engineering are considered relative to the Planck curve, as well as the implemented special binning standard. The entire material is illustrated by practical examples such as the projects implemented by Lumileds in the Rijksmuseum as well as by MDM–Light in the State Hermitage Museum, Surround Art Gallery, Buzeon, ILONA-K Artspace. Substantiated technical solutions for establishment of an ideal museum lighting system are presented.","PeriodicalId":49907,"journal":{"name":"Light & Engineering","volume":"240 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135201181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Restoration workshops often stay in the periphery of museum life standing in the background of headline exhibitions. At the same time, restoration is an essential part of cultural heritage conservation. In this report, we would like to review the matters of formation of an optimal luminous environment using the workshops of the Grabar Art Conservation Centre as an example. The nature of light in a workshop is of primary importance for high quality of restoration work. We consider this case important since the Grabar Art Conservation Centre cooperates with many regional museums of Russia, and its experience may be interesting for museum practitioners.
{"title":"Illumination in Restoration Workshops: Pressing Challenges and Their Solutions","authors":"Elena I. Prokhanova","doi":"10.33383/2022-059","DOIUrl":"https://doi.org/10.33383/2022-059","url":null,"abstract":"Restoration workshops often stay in the periphery of museum life standing in the background of headline exhibitions. At the same time, restoration is an essential part of cultural heritage conservation. In this report, we would like to review the matters of formation of an optimal luminous environment using the workshops of the Grabar Art Conservation Centre as an example. The nature of light in a workshop is of primary importance for high quality of restoration work. We consider this case important since the Grabar Art Conservation Centre cooperates with many regional museums of Russia, and its experience may be interesting for museum practitioners.","PeriodicalId":49907,"journal":{"name":"Light & Engineering","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135201183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The article describes the experience in implementation of light engineering projects by the Moscow Lights Museum from 2009 to 2021. Examples are provided on how a light design may affect the target audience of a museum, duration of exhibition touring, expansion of the cultural and educational activities. Information about the role of light in adaptation of the museum for visually impaired visitors is also provided.
{"title":"How to Expand Target Audience of a Museum by Using Light","authors":"Natalya V. Potapova","doi":"10.33383/2022-057","DOIUrl":"https://doi.org/10.33383/2022-057","url":null,"abstract":"The article describes the experience in implementation of light engineering projects by the Moscow Lights Museum from 2009 to 2021. Examples are provided on how a light design may affect the target audience of a museum, duration of exhibition touring, expansion of the cultural and educational activities. Information about the role of light in adaptation of the museum for visually impaired visitors is also provided.","PeriodicalId":49907,"journal":{"name":"Light & Engineering","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135201189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nowadays, light design is not just a purely technical and functionally limited applied sphere but a sphere of active creative activity. Light engineering gradually moves rowards light design. This transformation has not just provided the latter with unlimited potential of design and art tools but has also provided it with a wide range of its capabilities, which makes it difficult for light design to self-identify to a certain extent. The processes provided light engineering with a variety of creative methods have dissolved the boundaries of the new profession still looking for self-identification. The contemporary trends in practical light design have allowed to identify the development direction more clearly, which allows us to enhance the education methodology. The conducted comparative analysis of the works by the leaders of international practice and professional education in the sphere of light design has identified a number of common trends, which allowed to set out the main methods of specialist training. A robust relationship between light design and theatre lighting and the use of the scenario-based principle of light modelling as well as the innovative experimental school laboratories equipped at the highest technical level and creative architectural and lighting design are becoming a most important component of future light designers training. The experience of training design is not only closely related to theory and methodology of technical aesthetic but also serves as a direct reflection of current design realia including artistic, media and information and engineering aspects.
{"title":"Light Design: From Practice to Education","authors":"E. Zaeva-Burdonskaya, Y. Nazarov","doi":"10.33383/2021-091","DOIUrl":"https://doi.org/10.33383/2021-091","url":null,"abstract":"Nowadays, light design is not just a purely technical and functionally limited applied sphere but a sphere of active creative activity. Light engineering gradually moves rowards light design. This transformation has not just provided the latter with unlimited potential of design and art tools but has also provided it with a wide range of its capabilities, which makes it difficult for light design to self-identify to a certain extent. The processes provided light engineering with a variety of creative methods have dissolved the boundaries of the new profession still looking for self-identification. The contemporary trends in practical light design have allowed to identify the development direction more clearly, which allows us to enhance the education methodology. The conducted comparative analysis of the works by the leaders of international practice and professional education in the sphere of light design has identified a number of common trends, which allowed to set out the main methods of specialist training. A robust relationship between light design and theatre lighting and the use of the scenario-based principle of light modelling as well as the innovative experimental school laboratories equipped at the highest technical level and creative architectural and lighting design are becoming a most important component of future light designers training. The experience of training design is not only closely related to theory and methodology of technical aesthetic but also serves as a direct reflection of current design realia including artistic, media and information and engineering aspects.","PeriodicalId":49907,"journal":{"name":"Light & Engineering","volume":"312 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75010653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. V. Matveev, R. Oleinik, N. P. Sapunova, S. Reznikov
The subject matter of the article is the effect of a visual stimulation in the form of visual environment formed by dynamic laser images with preset fractality parameters on human. The structural and restorative characteristics of this environment are similar to those of the natural visual environment known for its restorative properties: it reduces the level of loading of sensory systems, recovers functional (general) state of humans, etc. Such analogue environment is formed using a laser optoelectronic RGB device designed with a non-conventional optical element, which transforms the structure of light beams from sources of radiation into an abstract light field with fractal dimensions of D = 1.3–1.5 optimal for perception, which is a positive criterion of evaluation of correspondence between this field and the natural visual environment. To estimate the level of the effect of the visual analogue environment, the electroencephalography (EEG) method was used which is based on analysis of activity of human brain α rhythm related to relaxed wakeful state. The estimation demonstrated that the proposed visual stimulation causes a valid positive effect as a light therapy instrument. The obtained percentage data on the difference between median values of α rhythm power in 18 derivations before and after the visual stimulation has demonstrated increase of α rhythm power by 40 % as compared to the baseline level. Minimal growth was equal to 17.8 % which corresponds to parietal derivation P3-A1 whereas the maximum growth was 51.4 % and corresponded to the mid-temporal derivation T4-A2. Also valid reductions of systolic and diastolic blood pressure (BP) and cardiac rate (CR) by 8.5 % and 10 % respectively were observed. The obtained data are indicative of reduction of anxiety level, unloading of sensory systems and positive dynamics of the effect of dynamic laser images on human functional state. The statistical analysis confirms validity of the positive dynamics of α rhythm power, BP and CR changes.
{"title":"The Impact of Dynamic Fractal Laser Images on Human Functional State","authors":"N. V. Matveev, R. Oleinik, N. P. Sapunova, S. Reznikov","doi":"10.33383/2020-045","DOIUrl":"https://doi.org/10.33383/2020-045","url":null,"abstract":"The subject matter of the article is the effect of a visual stimulation in the form of visual environment formed by dynamic laser images with preset fractality parameters on human. The structural and restorative characteristics of this environment are similar to those of the natural visual environment known for its restorative properties: it reduces the level of loading of sensory systems, recovers functional (general) state of humans, etc. Such analogue environment is formed using a laser optoelectronic RGB device designed with a non-conventional optical element, which transforms the structure of light beams from sources of radiation into an abstract light field with fractal dimensions of D = 1.3–1.5 optimal for perception, which is a positive criterion of evaluation of correspondence between this field and the natural visual environment. To estimate the level of the effect of the visual analogue environment, the electroencephalography (EEG) method was used which is based on analysis of activity of human brain α rhythm related to relaxed wakeful state.\u0000The estimation demonstrated that the proposed visual stimulation causes a valid positive effect as a light therapy instrument. The obtained percentage data on the difference between median values of α rhythm power in 18 derivations before and after the visual stimulation has demonstrated increase of α rhythm power by 40 % as compared to the baseline level. Minimal growth was equal to 17.8 % which corresponds to parietal derivation P3-A1 whereas the maximum growth was 51.4 % and corresponded to the mid-temporal derivation T4-A2. Also valid reductions of systolic and diastolic blood pressure (BP) and cardiac rate (CR) by 8.5 % and 10 % respectively were observed. The obtained data are indicative of reduction of anxiety level, unloading of sensory systems and positive dynamics of the effect of dynamic laser images on human functional state. The statistical analysis confirms validity of the positive dynamics of α rhythm power, BP and CR changes.","PeriodicalId":49907,"journal":{"name":"Light & Engineering","volume":"12 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85381804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The goal of this article is to determine various approaches to forming of virtual luminous environment using latest international technologies and resources. Special attention is paid to the systematic approach to research of the ways of adaptation in architecture including elements of contemporary digital technologies and achievements in the field of virtual luminous environment arrangement. Conditions, theoretical basis and tools of virtual luminous environment forming in an enclosed underground space are reviewed. Virtual techniques of luminous environment modification are identified based on analysis of cases of their application. It is noted that different techniques of virtual luminous environment application as an integral component of an underground space use numerous ways to converse and control electrical lighting. The article may be useful both for theory and practice of virtual luminous environment forming in underground spaces providing brand new capabilities to architecture.
{"title":"Virtual Light Environment of Underground Spaces: An Alternative to Interaction","authors":"N. Saprykina","doi":"10.33383/2021-065","DOIUrl":"https://doi.org/10.33383/2021-065","url":null,"abstract":"The goal of this article is to determine various approaches to forming of virtual luminous environment using latest international technologies and resources. Special attention is paid to the systematic approach to research of the ways of adaptation in architecture including elements of contemporary digital technologies and achievements in the field of virtual luminous environment arrangement. Conditions, theoretical basis and tools of virtual luminous environment forming in an enclosed underground space are reviewed. Virtual techniques of luminous environment modification are identified based on analysis of cases of their application. It is noted that different techniques of virtual luminous environment application as an integral component of an underground space use numerous ways to converse and control electrical lighting. The article may be useful both for theory and practice of virtual luminous environment forming in underground spaces providing brand new capabilities to architecture.","PeriodicalId":49907,"journal":{"name":"Light & Engineering","volume":"44 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79212219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
G. Zissis, L. Canale, D. Buso, E. Madias, C. Bouroussis, Marta Krakowiak, Alberto Sozza, F. Topalis, S. Zerefos
The construction sector faces new challenges in order to provide smart, energy efficient and sustainable lighting environments for infrastructure, cities, buildings and the industry, in order to follow the 2050 low-carbon economy roadmap of the European Commission. In parallel, the Environmentally Conscious Smart Lighting (ECOSLIGHT) project aims to design training programs in lighting that will actively enhance employability and improve career prospects of lighting-related professionals, while also help businesses to find the right competences they need to increase their competitiveness. In this paper, by analysing critically the 438 collected answers though on-line ECOSLIGHT original developed questionnaire, we were able to understand clearly what are the needs of the sector for well-trained lighting professionals and indent the training needs for future lighting professionals who want find jobs in the sector. Further, we could establish standard “job-profiles” for two of the most popular need lighting professionals: lighting designers and lighting system engineers.
{"title":"Mapping the Needs for Trained Lighting Engineers in Construction Industry: The First Outcomes from ECOSLIGHT Skills Alliances European Project","authors":"G. Zissis, L. Canale, D. Buso, E. Madias, C. Bouroussis, Marta Krakowiak, Alberto Sozza, F. Topalis, S. Zerefos","doi":"10.33383/2021-087","DOIUrl":"https://doi.org/10.33383/2021-087","url":null,"abstract":"The construction sector faces new challenges in order to provide smart, energy efficient and sustainable lighting environments for infrastructure, cities, buildings and the industry, in order to follow the 2050 low-carbon economy roadmap of the European Commission. In parallel, the Environmentally Conscious Smart Lighting (ECOSLIGHT) project aims to design training programs in lighting that will actively enhance employability and improve career prospects of lighting-related professionals, while also help businesses to find the right competences they need to increase their competitiveness. In this paper, by analysing critically the 438 collected answers though on-line ECOSLIGHT original developed questionnaire, we were able to understand clearly what are the needs of the sector for well-trained lighting professionals and indent the training needs for future lighting professionals who want find jobs in the sector. Further, we could establish standard “job-profiles” for two of the most popular need lighting professionals: lighting designers and lighting system engineers.","PeriodicalId":49907,"journal":{"name":"Light & Engineering","volume":"46 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77024665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The article describes development of the set of recommendations concerning design and modernisation of illumination systems for catering industry. Relevant publications were studied, a number of parameters of illumination systems and colour layouts of catering outlets were reviewed, three scenarios of restaurant illumination were modelled, a questionnaire was developed and potential restaurant visitors (of different gender and age) were surveyed, and the summarised list (set) of recommendations to be used in design of catering outlets was formed.
{"title":"Development of Recommendations for Catering Industry Illumination Systems","authors":"Natalya V. Endiyarova, N. Tolstoba","doi":"10.33383/2021-055","DOIUrl":"https://doi.org/10.33383/2021-055","url":null,"abstract":"The article describes development of the set of recommendations concerning design and modernisation of illumination systems for catering industry. Relevant publications were studied, a number of parameters of illumination systems and colour layouts of catering outlets were reviewed, three scenarios of restaurant illumination were modelled, a questionnaire was developed and potential restaurant visitors (of different gender and age) were surveyed, and the summarised list (set) of recommendations to be used in design of catering outlets was formed.","PeriodicalId":49907,"journal":{"name":"Light & Engineering","volume":"58 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81946807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Aladov, A. Zakgeim, Julia V. Semyashkina, A. Chernyakov
The article reviews the main theoretical, engineering and technological, circuit-engineering and software aspects of development of a dynamically controlled luminaire based on light emitting diodes for contrast visualisation of biological tissues during surgical procedures. The design concept of such surgical luminaire is proposed, which combines high-quality white lighting and coloured accent lighting increasing the contrast of visualisation of particular tissues and borders between them. The calculation model of the luminaire optical system allows maximising the level of illumination and uniformity of illuminance and colour of the surgical area. The software of the luminaire allows to independently modifying intensity of radiation of six coloured light emitting diodes with blue (460 nm), turquoise (505 nm), green (530 nm), green-yellow (550 nm), orange (590 nm) and red (630 nm) light colours for synthesis of coloured lighting of virtually any chromaticity. The level of general lighting by means of phosphor light emitting diodes can also be varied within a wide range. Chromaticity and level of lighting are adjusted by means of pulse-duration modulation of light emitting diode current and the light parameters of the luminaire are controlled by a remote computer via a radio channel. This medical luminaire is primarily designed for lighting during surgical procedures and it can also be used for visual diagnostics based on the colour of analysed tissues.
{"title":"Dynamically Controlled LED Luminaire for Contrast Visualisation of Biological Tissues During Surgical Procedures","authors":"A. Aladov, A. Zakgeim, Julia V. Semyashkina, A. Chernyakov","doi":"10.33383/2021-059","DOIUrl":"https://doi.org/10.33383/2021-059","url":null,"abstract":"The article reviews the main theoretical, engineering and technological, circuit-engineering and software aspects of development of a dynamically controlled luminaire based on light emitting diodes for contrast visualisation of biological tissues during surgical procedures. The design concept of such surgical luminaire is proposed, which combines high-quality white lighting and coloured accent lighting increasing the contrast of visualisation of particular tissues and borders between them. The calculation model of the luminaire optical system allows maximising the level of illumination and uniformity of illuminance and colour of the surgical area. The software of the luminaire allows to independently modifying intensity of radiation of six coloured light emitting diodes with blue (460 nm), turquoise (505 nm), green (530 nm), green-yellow (550 nm), orange (590 nm) and red (630 nm) light colours for synthesis of coloured lighting of virtually any chromaticity. The level of general lighting by means of phosphor light emitting diodes can also be varied within a wide range. Chromaticity and level of lighting are adjusted by means of pulse-duration modulation of light emitting diode current and the light parameters of the luminaire are controlled by a remote computer via a radio channel.\u0000This medical luminaire is primarily designed for lighting during surgical procedures and it can also be used for visual diagnostics based on the colour of analysed tissues.","PeriodicalId":49907,"journal":{"name":"Light & Engineering","volume":"7 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82859763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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