Light Trespass
[edit] Definition of light trespass
Light trespass occurs when there is a light spill or if light is cast where it is not wanted. It is somewhat subjective because it is difficult to define when, where, and how much light spill is acceptable or unacceptable. An example of light trespass is when light from a street or floodlight enters a neighbouring window.
There are various solutions to mitigate light spill or light trespass through the design of the lighting or ancillary items such as louvres, one such example is given below.
[edit] Lighting solutions - anti glare and diffusion
Louvres can provide essential glare control by creating directional light diffusion, source concealment and glare control. The effectiveness of a system depends on the materials being used and design of the system.
It is possible to use metal fabrics that are directional, thus reducing light penetration in certain directions, whilst letting light through in other directions.
One such example is a thin and light metal louvre, corrosive-resistant directional fabric for use inside or out. There are up to 700 paper-thin miniature bronze louvres woven into every metre of fabric. The tiny louvres are usually given a standard protective black polyester coating for a durable finish, absorbing and eliminating re-reflected heat, light and glare. They can be any colour, as well as having a matt or highly reflective finish to suit. The standard louvre angles are 17° and 0°. Angles between 17° and 0° can be produced on application. It can be used for various lighting purposes, including in: trading floors, museum or exhibition displays, shading traffic lights, and buildings and bridges around the globe.
[edit] Related articles on Designing Buildings
Featured articles and news
Global BACS Market: analytics and optimisation
A BSRIA glance at building automation and control systems.
What it is and how to use it.
Types of insulating plaster by binder and insulant.
Investors in People: CIOB achieves gold
Reflecting a commitment to employees and members.
Scratching beneath the surface; a guide to selection.
ECA 2024 Apprentice of the Year Award
Entries open for submission until May 31.
UK gov apprenticeship funding from April 2024
Brief summary the policy paper updated in March.
For the World Autism Awareness Month of April.
70+ experts appointed to public sector fire safety framework
The Fire Safety (FS2) Framework from LHC Procurement.
Project and programme management codes of practice
CIOB publications for built environment professionals.
Sustainable development concepts decade by decade.
The regenerative structural engineer
A call for design that will repair the natural world.
Buildings that mimic the restorative aspects found in nature.
CIAT publishes Principal Designer Competency Framework
For those considering applying for registration as a PD.
Introducing or next Guest Editor Arun Baybars
Practising architect and design panel review member.