Review Paper: Innovative daylighting: Review of systems and evaluation methods

  title={Review Paper: Innovative daylighting: Review of systems and evaluation methods},
  author={Paul J. Littlefair},
  journal={Lighting Research \& Technology},
  pages={1 - 17}
  • P. Littlefair
  • Published 1990
  • Engineering
  • Lighting Research & Technology
New day lighting systems such as the light pipe, light shelf, mirrored louvres and prismatic glazing have two main objectives: to bring daylight deeper into a space, and to control and distribute direct sunlight so that this can be used as an effective working illuminant. While a large number of devices has been proposed, little has been done to show rigorously whether they do in fact save energy or improve the internal environment. This paper describes the available systems and gives initial… Expand
A Review of Light Shelf Designs for Daylit Environments
A review of the research realized in the last three decades concerning light shelves together with their associated implications in a building’s daylight performance as well as in its energy balance in a few cases is reviewed. Expand
Classification of indoor daylight enhancement systems
In a dense urban environment, sky obstruction caused by high rise buildings causes minimal daylighting for interiors on lower floors and in deep interior spaces. Innovative daylighting systems can beExpand
An active sunlight redirection system for daylight enhancement beyond the perimeter zone
Abstract Over the past years, extensive research has been carried out in the creation of working environments that utilize natural light as their primary source of illumination. TransferringExpand
The performance of innovative daylighting systems
Innovative daylighting systems have four key aims; to increase daylight levels deep within rooms, to improve daylight uniformity, to control direct sunlight and to reduce glare. Results fromExpand
Daylight coefficients for practical computation of internal illuminances
The interface between the sky modelling technique and simulation of internal reflection, and the modelling of blinds and innovative daylighting systems are described and the practical implementation of such a program to calculate year-round internal illuminances is outlined. Expand
Study and Analysis of Parameters Affecting Tubular Daylighting Device
Renewable energy resources are clean and nearly everlasting in nature. These days, daylighting using renewable energy resources is of great concern. The sun is an extraordinary source of renewableExpand
The impact of installing a concave curved profile blind to a glass window for visual comfort in office buildings
The results are promising, as the model system in general outperforms the reference case by successfully increasing an even distribution of light levels across the room and is thus, more likely to provide visual comfort. Expand
Modelling, design, construction and installation of a daylighting system for classrooms in rural South Africa
Modelling, Design, Construction and Installation of a Daylighting System for Classrooms in Rural South Africa A. Ikuzwe Thesis: MEng (Mech) December 2014 Use of natural daylight for interiorExpand
Non-imaging optics was used to set up novel daylighting systems that aim at an efficient collection and redistribution of the diffuse component of daylight, demonstrating sunlighting control capabilities that improve visual comfort and overall performance. Expand
Efficient and sustainable energy lighting solutions for human life: a review
It is shown that an efficient energy strategy in the design of a lighting system not only saves energy and is economic but also produces beneficial and important effects in other nonmaterial aspects of human life, such as well-being, productivity, and heritage conservation. Expand


Lighting systems performance in an innovative daylighted structure: An instrumented study
This paper presents conclusions from a one-year instrumented study of an innovative daylighted commercial building in the San Francisco Bay area. The building, a five-story structure housing 3000Expand
The use of reflectors in venetian blinds to enhance irradiance in greenhouses
Abstract Using a venetian blind as a basis, we describe and analyse novel forms of high-gain, nonfocussed sunlight concentrators and test experimental versions. Generally, midday winter light passingExpand
Luminance pattern simulation: Design of an artificial BRE Average Sky
The outcome of a feasibility study to design an artificial sky to simulate the BRE Average Sky is described, which could be used in a wide variety of lighting design problems, whenever a highly controlled luminance pattern is required. Expand
Concentrated and piped sunlight for indoor illumination.
It is argued that using sunlight directly for indoor illumination would be about twenty-five times more cost-effective than using sunlight to generate electricity with solar cells for powering electric lamps for indoor lighting. Expand
Lighting with sunlight using sun tracking concentrators.
The use of controlled beams of sunlight for lighting interior parts of a building is proposed as an economically attractive and practical option in a solar energy context and a preliminary experiment is given. Expand
An Analysis of Innovative Methods in Natural Lighting
Among the options for reducing lighting energy consumption is the effective utilization of natural lighting. This article analyses innovative methods for maximum utilization of natural light fromExpand
Beaming Daylight Into Deep Rooms
Among the options of reducing energy consumption by artificial lighting in buildings is the effective use of natural lighting. By using direct-beam radiation from the sun, deeper light penetrationExpand
Daylight in dynamic thermal modelling programs: Case study
Heating, cooling and lighting energy consumptions in buildings are inter-related, and a model which treats thermal performance and lighting simultaneously is required in order to evaluate the fullExpand
New efficient light guide for interior illumination.
This device combines the total internal reflection of optical fibers with the low attenuation of air transmission of light to make large-scale interior illumination with piped light feasible. Expand
Wide-angle lenses and image collapsing subreflectors for nontracking solar collectors.
A two-point corrected cylindrical stepped prism lens with 30.48-cm aperture height and F/D congruent with 1, which focuses well over the acceptance interval and wide-angle and image collapsing optical properties were confirmed by laser and solar experiments. Expand