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- Title
Herramienta para la evaluación de la luminaneia en señales y anuncios luminosos.
- Authors
Navas-Borrero, José Luis; de Andrés-Díaz, José Ramón; Heredia-Larrubia, Juan Ramón
- Abstract
The impact on electricity costs and the negative effects on environments such as astronomy and the environment, have led to public administrations regulate lighting installations considering light pollution as an important objective to counteract. Current regulations regarding light pollution set maximum luminance values, particularly in what concerns the assessment of illuminated advertisements. The determination of the points of the scene where these peaks occur is subject to observation opinion of the technician who perform the action. The sensitivity of the human eye to brightness is nonlinear and misleading in that its purpose is to identify the scene and not the measure of values and light intensities. Moreover, the use of conventional luminance meter involves measuring point to point on the scene. This requires making many measurements in order to sweep the whole scene and determine where the maximum is reached. This action is not only tedious and error prone, but involves taking measurements at different successive instants which affects repeatability errors and variation over time in unstable scenarios. This paper proposes the use of digital cameras to evaluate the brightness, particularly for illuminated advertisements. In this sense, digital photography has color and brightness information from all points within it. All information is taken simultaneously and can be stored, processed and evaluated by software.
- Subjects
BILLBOARD lighting; LUMINANCE (Photometry); DIGITAL cameras; ELECTRIC lighting &; the environment; LIGHT pollution; PHOTOMETRY equipment; ADVERTISING -- Environmental aspects; PREVENTION
- Publication
DYNA - Ingeniería e Industria, 2015, Vol 90, Issue 2, p174
- ISSN
0012-7361
- Publication type
Article
- DOI
10.6036/7261