Êtes-vous un étudiant de l'EPFL à la recherche d'un projet de semestre?
Travaillez avec nous sur des projets en science des données et en visualisation, et déployez votre projet sous forme d'application sur GraphSearch.
Concept
Anidolic lighting
Résumé
Anidolic lighting systems use anidolic optical components to light rooms. Light redirected by these systems does not converge to a focal point or form an image, hence the name (from an, without, and eidolon, image).
Anidolic lighting uses non-imaging mirrors, lenses, and light guides to capture exterior sunlight and direct it deeply into rooms, while also scattering rays to avoid glare. The human eye's response to light is non-linear, so a more even distribution of the same amount of light makes a room appear brighter.
It is most challenging to effectively capture and redistribute light on cloudy, overcast days, when the sunlight is diffuse.
Mirrors are typically parabolic or elliptical mirrors. Lenses are frequently made in multiple sections, like a Fresnel lens. Light guides include light pipes and anidolic ceilings.
Prism lighting
Lens systems use reflection and refraction within optical prisms to redirect daylight. Some forms of prism lighting have been used for centuries, and others are 21st-century.
Deck prisms were set into the upper decks of ships to light the decks below. Pavement lights were set into floors or sidewalks to let light into a basement below. The underside was frequently extended into prisms to direct and spread the light.
Prism tiles were designed to bend sunbeams coming through a window upwards, so that they would reach deeper into a room. They were placed in the upper parts of window frames, where they were called "transom lights".
Daylight redirecting window film (DRF) is a thin, flexible plastic version of the old glass prism tiles. It can be used as a substitute for opaque blinds.
File:Luxfer sidewalk.gif|The basement under a sidewalk daylit with [[vault lights]].
File:Scatter.gif|Single vault light pendant prism, showing [[total internal reflection]]. Multi-prism vault lights were also made.
File:Window with prism tile transom.gif|Transom light. The upper part of the window is made of [[prism tile]]s, so the light passing through them is bent.
File:2angles.
Source officielle
À propos de ce résultat
Cette page est générée automatiquement et peut contenir des informations qui ne sont pas correctes, complètes, à jour ou pertinentes par rapport à votre recherche. Il en va de même pour toutes les autres pages de ce site. Veillez à vérifier les informations auprès des sources officielles de l'EPFL.
Publications associées (15)
Toward proper evaluation of light dose in indoor office environment by frontal lux meter
Jean-Louis Scartezzini, Ali Motamed, Maira Vieira Dias
The wearable Brazilian illuminance meter “OcuLux” provides the opportunity to monitor continuously pupilar illuminance for indoor environment. The device is calibrated to evaluate the illuminance in l
Elsevier2017Energetic, Visual and Non-Visual Aspects of Office Lighting
Light has important visual and non-visual effects on humans and high-quality light should therefore be supplied inside buildings in sufficient quantities. On the other hand, artificial lighting is res
EPFL2010Minimizing lighting power density in office rooms equipped with Anidolic Daylighting Systems
Jean-Louis Scartezzini, Friedrich Linhart
Physical or virtual models are commonly used to visualize the conceptual ideas of architects, lighting designers and researchers; they are also employed to assess the daylighting performance of buildi
2010Personnes associées (4)
Unités associées (1)
Concepts associés (2)
Anidolic lighting
Anidolic lighting systems use anidolic optical components to light rooms. Light redirected by these systems does not converge to a focal point or form an image, hence the name (from an, without, and eidolon, image). Anidolic lighting uses non-imaging mirrors, lenses, and light guides to capture exterior sunlight and direct it deeply into rooms, while also scattering rays to avoid glare. The human eye's response to light is non-linear, so a more even distribution of the same amount of light makes a room appear brighter.
Daylighting
Daylighting is the practice of placing windows, skylights, other openings, and reflective surfaces so that direct or indirect sunlight can provide effective internal lighting. Particular attention is given to daylighting while designing a building when the aim is to maximize visual comfort or to reduce energy use. Energy savings can be achieved from the reduced use of artificial (electric) lighting or from passive solar heating.
Cours associés (3)
AR-449: Architecture and Solar energy
Ce cours vise à donner aux architectes les connaissances et le regard critique nécessaires à utiliser des technologies et stratégies solaires adaptés (passives et actives, hivernales et estivales) dan
PHYS-118: Building physics
Ce cours traite des principaux phénomènes physiques observables dans le bâtiment et doit permettre à l'étudiant d'acquérir des connaissances de base dans le domaine de la physique du bâtiment.
AR-241: Building technology III
Ce cours traite des divers domaines techniques intervenant dans la conception et la réalisation d'un bâtiment, soit : physique du bâtiment, structures, matériaux, construction et installations techniq
Séances de cours associées (8)
Technologie du bâtiment III: Confort visuel
Explore la physique de la technologie du bâtiment et la physiologie de la vision, en mettant l'accent sur le confort visuel et les effets d'éclairage.
Mécanique des fluides : hydrostatique et caractéristiques de débit
Explore l'hydrostatique, les gradients de pression, les caractéristiques d'écoulement et l'effet Venturi en mécanique des fluides.
Physique du bâtiment : énergie et vitrage
Explore l'équilibre thermique des façades solaires passives et l'optimisation des enveloppes de bâtiments.