A luminaire with variable light distribution

Abstract

Industrial facilities such as production and storage halls are a specific environment, which is usually characterized by a large usable area, which is managed in a way that brings together in the given area many functional zones for various purposes. Frequent changes in the management of industrial halls gives a need to change the lighting method. In such a situation, a lighting solution that enables the photometric characteristics of the luminaires to be adapted to variable development of the facility, covering not only the quantitative regulation of the luminous flux, but also the direction of its radiation into the environment, can be a helpful solution. The article presents an innovative concept of a luminaire, which makes it possible to change the light distribution without the need to replace optical elements. Simulation tests were carried out for the developed luminaire in order to check the possibility of obtaining the assumed distribution and shapes of light spots on the working plane. Thanks to the application of this solution in an environment where there is a need for frequent changes in the development of usable space requiring changes in lighting conditions, it is possible to dynamically adjust the characteristics of the installed system to new environmental conditions.

Adaptive Luminaire with Variable Luminous Intensity Distribution

“…Also, it provides rotationally symmetrical and bi-axially symmetrical distribution using the same optical system. The concept of an innovative luminaire was created, and preliminary simulation tests, which confirmed the assumptions, were conducted [28,29]. There were simulation works performed that only contained the possibility of luminous intensity distribution regulation by a designed optical system [28].…”

“…The concept of an innovative luminaire was created, and preliminary simulation tests, which confirmed the assumptions, were conducted [28,29]. There were simulation works performed that only contained the possibility of luminous intensity distribution regulation by a designed optical system [28]. The next step was simulation studies but extended by analyzing lighting conditions on work surfaces with variable geometry and position [29].…”

Compact illumination system with variable beam direction and beam divergence

“…Recently, a lighting system generating different radiation patterns has been designed to account for a changing arrangement of the useable area in a production hall, using reflectors [19][20][21] . A major disadvantage of using reflectors for spatial tuneable lighting is that these usually have a negative impact on the system size or are unable to capture all emitted light, reducing the maximum achievable efficiency.…”