Lighting Design And Architecture

- Sep 13, 2017 -

Design and architecture

Architectural lighting design

Main article: Architectural lighting design

Lighting without windows: The Pantheon in the 18th century, painted by Giovanni Paolo Panini.

Lighting design as it applies to the built environment is known as 'architectural lighting design'. Lighting of structures considers aesthetic elements as well as practical considerations of quantity of light required, occupants of the structure, energy efficiency and cost. Artificial lighting takes into account the amount of daylight received in an internal space by using Daylight factorcalculation. For simple installations, hand-calculations based on tabular data are used to provide an acceptable lighting design. More critical or optimized designs now routinely use mathematical modeling on a computer using software such as Radiancewhich can allow an Architect to quickly undertake complex calculations to review the benefit of a particular design.

In some design instances, materials used on walls and furniture play a key role in the lighting effect< for example dark paint tends to absorb light, making the room appear smaller and more dim than it is, whereas light paint does the opposite. In addition to paint, reflective surfaces also have an effect on lighting design.

Photometric studies

Photometric studies (also sometimes referred to as "layouts" or "point by points") are often used to simulate lighting designs for projects before they are built or renovated. This enables architects, designers, and engineers to determine which configuration of lighting fixtures will deliver the amount of light needed. Other parameters that can be determined are the contrast ratio between light and dark areas. In many cases these studies are referenced against IESNA or CIBSE recommended practices for the type of application. Depending on the building type, client, or safety requirements, different design aspects may be emphasized for safety or practicality. Specialized software is often used to create these, which typically combine the use of two-dimensional CADdrawings and lighting calculation software (i.e. AGi32, Visual, Dialux).

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