The Balance Between Visual Effect and Engineering Correctness in Architectural Lighting

Abstract

Energy efficiency and light pollution are important issues in modern lighting technology. The field of electric lighting is characterized by the potential for large savings to be made and the possibility of the reduction of unwelcome threats. However, the issues of energy efficiency and light pollution have so far not been considered within the context of floodlighting. The main aim of this paper is to present the main considerations in this area. This analysis is based on computer simulations and a proposal for the assessment of these problems is carefully described. Additionally, the connection of visual effect to energy efficiency and light pollution is presented by means of the variant approach.

Virtual Reality for Smart Urban Lighting Design: Review, Applications and Opportunities

“…Another very important aspect of façade lighting is the position and directionality of the luminaires [96,[104][105][106][107]. The luminaire position and the direction of the luminous flux emission modify the appearance of the façade and the light effect.…”

“…The luminous intensity distribution of the luminaire is a parameter closely correlated with the light effect on the façade. It can be used as an additional lighting design parameter that contributes, together with the arrangement and directionality of the luminaires, to emphasize the architectural details, and allows for a correct perception of the whole façade [100,104,106,107].…”

“…The correlated colour temperature of the emitted light can be used in architectural lighting for different purposes [100,[104][105][106]111]. The light CCT can be used to align [100] or to differentiate [105] a building from its surroundings by using light with similar or different CCT in comparison to that used for the external lighting.…”