Programme Updated June 2013, Version 4

Programme updated June 2013, version 4

Monday Tuesday Wednesday Thursday Friday Sat/Sunday Monday Tuesday Wednesday Thursday Friday June 24 June 25 June 26 June 27 June 28 June 29,30 July 1 July 2 July 3 July 4 July 5

09.00-11.00 Opening Bizjak (SI) Philips, Beu (RO) Beu (RO) Saturday Potamianos (GR) Quartier (B) Labayrade (F) Yilmaz (TR) workshop's results: session Lighting morning: presentation Application Visit to Centre Acropolis Museum 11.00-13.00 Poisel (D) Bizjak (SI) Philips, Sotiropoulou Zissis (F) Saturday Zerefos (GR) Verbeeck (B) Taner (TR) Lighting (GR) afternoon: Application free Centre 13.00-14.00 Lunch Lunch Lunch Lunch Lunch Lunch Lunch Lunch Lunch Lunch 14.30-16.00 Students’ Topalis (GR) Topalis (GR) Pezoulas (GR) Xintadekas (GR) Sunday: Doulos (GR) 4: Workshop 5: Workshop workshop's Final Examination and project work - presentation, Daily Indoor action Indoor action results: Evaluation structure and 16.00-18.00 1: Introduction of 2: Workshop 3: Workshop Zissis (F) excursion in preparation of Overview of the analysis workshop and Indoor action Indoor action Cap Sounion presentation course – closing Outdoor action ceremony with award of certificates >19.00 Welcome party Social event Farewell party >22.00 Outdoor action

Note: some afternoon sessions will be probably moved later into the night. Lecturers Institution Topics Students’ presentation, First LiDe (homework) assignment: before arrival, students from each institution are asked to work in group to prepare a short presentation (ppt or pdf structure and analysis file) of their Institute focusing on specific aspects: The main concept and orientation of lighting technology/design or light art education with respect to the general status of lighting design in their country and internationally. Main topics addressed in priority and developed skills. Duration of the presentation should not exceed 15 minutes. Prof. Hans Poisel D Hochschule Nürnberg Title: Sunlight and LED: Hybrid lighting with optical fibers Abstract: Daylight is the perfect light for displaying the right colours and perfect for human well-being & performance. Using the Solektor system, direct sunlight is concentrated, coupled to optical fibers and then tranported to the area to be illuminated. Thus a lot of energy can be saved, UV and IR damage are excluded and the reproduction of colours is almost 100%. The course will give insight into the principle and benefits of that daylighting system and also its extension for periods, when no daylight is available using hybrid luminaires containing LEDs. Prof. Grega Bizjak SI University of Ljubljana Title: Vision and visual effects of light Abstract: Light has many different effects on our body and our live but the most important is vision. Light enables our vision and contributes to over 80 % information we got from our environment. Without light we feel somehow lost in a non-lit space. In this lecture we will first explain how vision works and what are the most important characteristics of human eyes like visual acuity, eye adaptation and accommodation or depth perception. Although we need light for our vision, to much light or improper direction of it might also disturb our vision. So we will also mentioned phenomena like glare, shadows and double light, which we should avoid in good lighting design.

Title: Non visual effects of light Abstract: Although vision is very important effect of light on our body it is not the only one. Light has also some non-visual effects on our body like internal clock synchronization, reduction of melatonin or sunburns. In this lecture we will learn how this non-visual effects of light can be used to make our work better or our life more relaxing but also how to avoid some negative effects. Prof. Frangiskos Topalis GR NTU Athens Title: Radiometry-photometry basic Abstract: Visible radiation and light. The human eye. Photopic, scotopic and mesopic vision. Spectrum of visual light, basic colours, chromatic systems, tristimulus values. Black body radiation. Colour of light sources. Colour temperature. Colour rendering index. Basic principles and quantities of photometry. Luminous intensity, luminous flux, illuminance and luminance. Units of photometry. Basic laws of photometry. Luminaires. Distribution of luminous inensity. CIE planes. Cone diagrams. Zonal distribution of luminous flux. Calculation of luminous flux codes. Illuminance distribution (isolux diagrams). Luminance diagrams (Schoelner, CIE, DIN). Glare. Unified Glare Rating. Utilization factor. Lighting calculation methods. Light sources (halogen, fluorescent, high presure mercury, metal halide, high presure sodium, low presure sodium, LED). Prof. George Zissis F Université Paul Sabatier Toulouse Title: Classic Light sources Technologies for indoor and outdoor lighting applications Abstract: In this module the technology of "classic light sources" will presented. Classic light source family includes incandescent and electrical discharge lamps. The operating principles and the main characteristics will be presented. Adequation of each technology with the targeted indoor and outdoor lighting application will be discussed. Finally, some innovations, like molecular radiators as light sources, will be discussed.

Title: Light Emitting Diodes for Lighting Abstract: The objective of this module is to present Lighting Emitting Diode technology as light source for general and architectural lighting. The operating principles and the main characteristics of this technology will be presented. The advantages as well as the problems associated with this technology will be discussed. Some special aspects associated to Light Emitting Diodes like health issue and life cycle assessment will be addressed also. Organic Light Emitting diodes will be included in the presentation as potential future lighting technology. Dr. Dorin Beu RO Technical University of Cluj-Napoca Title: Lighting and health Light& Technology – Lighting software Abstract: The course will present the Dialux free software the most widespread used product in Europe. Besides making calculations, an important topic is the result interpretation and solutions comparisons. An important feature is the possibility to determine LENI. Another software that is mentioned in the course is AGi32.

Title: Light and health Abstract: Lighting is an important topic when it comes to individual wellbeing. Simply questions like why we sleep at night, why we wake in the morning didn’t had an answer till recent. Circadian photobiology is now a hot topic and the importance of good lighting, but also darkness is emphasized (light pollution, Light At Night and the Dark- sky movement). Researches in the area of eye show the importance of retinal photoreceivers, called ipRGC, very sensitive in the blue region. Dr. Sophia Sotiropoulou GR HOU Title: Colour perception and lighting Abstract: One of the most distinctive and fascinating aspects of vision is the perception of colour. It provides a variety of unique sensory experiences stemming from the natural world and constitutes an inexhaustible pool of inspiration and expression for humanity. The importance of colour in our visual perception of the world is naturally reflected to the high rate of colour rendition in the quality assessment of artificial lighting sources. Although the Color Rendering Index (CRI) was, until recently, the sole internationally recognized and widely used metrics to assess color rendition properties of white lighting sources, given the inefficiency of CRI in several aspects, in particular when used to assess lighting sources with narrowband SPD, there is recently a significant progress in developing new assessment procedures and more holistic approaches to the metrics of colour rendition, applicable to any sources used for illumination, including SSL. The several outcomes of the work in progress of CIE - TC 1-69: “Colour Rendition by White Light Sources” addressing multiple dimensions of light-source colour quality will be discussed with reference to the physiological mechanisms, psychological factors and cognitive functions involved in the perception of colour. Prof. Jacob Potamianos GR HOU Title: Awe and Light in Byzantine Architecture Abstract: The experience of space in a Byzantine church is something exceptional. It generates feelings of awe, mysticism and devotion. Byzantine architects, following a centuries-old study of light from both mathematical and constructional points of view, succeeded in creating methods for handling light in order to set off the most profound aspects of Christian theology and to instigate appropriate sensations to the visitors. Prof. Stelios Zerefos GR HOU Title: Digital representation in lighting design Abstract: This lecture will address issues in the representation of lighting design schemes through digital means. The students will be given an introduction in 3D modeling techniques and how they can be used in lighting simulation. Other subjects covered include: characteristics of virtual lighting fixtures and sources, characteristics of the virtual camera and the influence of lighting on materials and textures. The lecture will be supported by graphic material, images and case studies for each subject mentioned. Dr. Lambros Doulos GR NTU Athens Title: Lighting controls Abstract:In the past, controls were used primarily to turn lights on or off, or for special purposes such as stage, theater, and conference room lighting. More recently the use of controls has become an essential element of good lighting design and an integral part of energy management programs for lighting of commercial, residential, industrial, and exterior areas. Studies of buildings that have implemented control strategies have shown that it is possible to reduce overall lighting energy consumption by as much as 80% in some localities. Cumulative savings are dependent on the building configuration, the control hardware specified, the combination of control strategies selected, and the extent to which each of the control strategies is available for use within a building. Prof. Katelijn Quartier B Provinciale Hogeschool Limburg Title: Retail lighting: shedding light on people, products/brands and spaces Abstract: To understand where we are at, and to learn from the past, a brief history of retail lighting, with the focus on atmosphere will be given. Next, via the psychological aspects of lighting, its importance and the human-environment interaction will be explained. A study will be presented which shows the impact of lighting on the perception of atmosphere, the emotions and behaviour. Prof. Ar. Griet Verbeeck B Provinciale Hogeschool Limburg Title: Sustainability in lighting design and the role of daylight in interior design Abstract: Starting from the larger context of sustainability, the relation of lighting and sustainability is sketched, both its impact on ecological aspects (energy, material use and pollution) and on aspects of well being (visual comfort and social aspects). As a practical concept for improving the sustainability of lighting designs, the principle of the Trias Ecologica is presented. Hereafter the lecture focuses specifically on the role of daylight within this principle. Attention is paid to the pros and cons of daylight versus artificial light in interior design, the assessment of daylight, the aspects influencing the daylight in a room and some easy-to-use software for daylight assessment. Finally, a wide range of inspiring examples of daylight use in interior design are presented and discussed. Dr. Raphael Labayrade F Ecole Nationale des Travaux, Lyon Title: Multi-objective optimization of lighting installations taking into account user preferences Abstract: The design of lighting installations should take into account power demand (to minimize), and also user’ feeling and preferences about the lighting atmosphere (to maximize). The lecture presents a two stage multi-objective optimization framework aimed at designing lighting installations that realize the best possible tradeoffs between these conflicting objectives. In the first stage, subjective data are collected from psycho-visual tests conducted with panels of observers and are used to derive preference functions; in the second stage, these functions are included as objective functions along with a function modeling the power demand in the multi-objective optimization process itself. The best tradeoffs between the objectives are then identified. Two case studies are presented: office lighting and street lighting. Finally, the use of Internet for performing psycho- visual tests is discussed: in particular, the benefits and limits of an internet-based protocol for designing complex lighting installations that meet user expectations are highlighted. Inst. Dr. Duygu Koca TR Hacettepe University, Ankara Title: Re-Reproducing Space by Camera Obscura: the Travel of Sunlight through the Pinhole Abstract: Camera Obscura is an optical device –usually a closed box – that produces its outside environment in a closed box by the help of sunlight coming through a pinhole on that box. The device is made up of mirrors and the logic is mainly based on the reflection of light. This lecture will cover (i) the history of camera obscura and its usage in drawing in Renaissance Art in order to freeze the scene; (ii) the construction and the travel of light in the box; (iii) the importance of light in reconstructing space in different mediums. Prof. Dr. Meltem Yılmaz TR Hacettepe University, Ankara Title: The Maximalization of the Use of Daylight for Interior Lighting Abstract: While light is a creative medium, its most basic function is to enable us to see. Our visual acuity relies on the quantity of light and its spectral distribution. Seeing is therefore not only about distinguishing light and shade, but also color. The movement of light is a linear process where time and space meet. Any moment reveals frozen movement in time. We have evolved to respond to daily and seasonal change brought about by the movement of the sun, the moon and the stars. Through the passage of light we track the change of day into night as well as form and surfaces moving in light. In the 20th century, the electric light has radically changed our way of life. The rhythm of life was for the centuries determined by the cyclical succession of day and night. It was only the emergence of electric lighting that enabled man to break away from this imperative rhythm. All at once, technology gave man the possibility of warding off darkness and imagining a different world. Our modern society is equally dependent on abundantly available artificial light in any place and at any time. It is not only necessary to guarantee the continuity of our activities, but also to give shape and atmosphere to our visual perception of the environment, independent of the availability of daylight. For all architectural spaces whose envelopes are penetrated by any opening to the exterior environment, lighting design begins with recognition of the entry of daylight. It is a first consideration because the presence of daylight in an interior strongly influences spatial perception and also changes the color of surfacing materials in terms of how they appear elsewhere in the room under a number of different kinds of electric illumination. Spurred by the energy conservation movement of the past half century, architects, engineers and lighting consultants have adapted building design to direct sunlight into today’s interiors. An opaque ceiling of relatively high reflectance can serve as an indirect light source when it receives ample quantities of sunlight. This can be achieved by exterior and interior lightshelves, and by prism panels that can send daylight into interior space at specific angles. In this presentation, the effect of a light shelve for increasing the amount of daylight, will be presented depending on an experiment that will be held in Hacettepe University by a construction of a single room with a lightshelve on the window construction element. Prof. Dr. Tayfun Taner TR Yasar University, Izmir Title: Façade Lighting for Cultural Heritage Abstract: Cities live not only during the daytime, but also at night. Touristic cities like Rome, Paris and London live longer at night than others. Our cultural heritage (monuments, conserved buildings of architectural and artistic value, green spaces of various kinds, fountains, sculptures etc.) are also seen at night, and some are also visited. The latter is a useful strategy, in that it distributes visitor’s demand to a longer period and thus prevents overuse and damage. Townscape elements of all kinds are also observed, examined and visited at nights, especially in places of mild or hot climates. All these mean that due consideration must be given to how such elements of our urban fabric are lit up at night and presented to the public as well as the foreign visitors. This endeavour is art, as much as it is a matter of technique. This lecture will cover the above-mentioned issues, while giving examples from Turkey and abroad, indicating the successful and unsuccessful applications. Dimitrios Xintadekas GR Philips (Guest speaker) Title: LED product knowledge & Architectural indoor lighting applications Abstract: In the first part concerning LED Product knowledge will be presented: Benefits of using LED, LED Lamps, Luminaires outdoor (functional & decorative), Luminaires indoor (functional & decorative), Control and OLED. In the second part with applications of architectural indoor lighting will be included: Cove Lighting, Grazing light, Shelf lighting, Back lighting, Special effects & Projects examples. Konstantinos Pezoulas GR Gravani AE (Guest speaker) Title: Lighting Design and Energy Saving using LED Technology Abstract: we will present the latest technological developments in lighting, focusing on LED lighting, which, apart from the energy savings offers high quality technical solutions. We will present solutions, examples and projects about architectural lighting for buildings, street lighting and Urban lighting etc.