20 March 2020 Lighting design project focused on visual comfort
Countless situations demand that the professional specialist in lighting promotes visual comfort in the lighting solution presented, regardless of whether the project is residential or even commercial. When properly worked on, the lighting contributes to the feeling of well-being of those who inhabit or frequent the environment. In the workplace, the appropriate lighting design is capable of stimulating productivity, in addition to reducing accident rates.
Knowing how to work the composition of the lights to meet these objectives will bring, in addition to user satisfaction, other benefits such as:
– the creation of self-identity for that environment;
– the feeling of comfort to the user;
– the contribution to quality of life;
– the offering of an invitation to use the space more regularly;
– the reduction of excess lighting from other environments;
– intuitive user guidance through environments.
A good lighting project must take into account the space to which it will be applied, its purpose and the expectations presented by the client. With this information in hand, the lighting designer will be able to project the lighting interferences that he or she will operate, striving for visual comfort.
I have received countless professionals who seek to specialize in the correct use of light, in the specialization which I coordinate by the Graduate Institute IPOG, the Master in Lighting and projectual practices in Architecture. To offer this type of knowledge as a differential of the performance of the architect has been very well accepted by the market, and it has served as an upgrade for the elaborated projects, both in technical and financial terms.
Below, I guide you on some points that must be taken into account when developing projects with a focus on visual comfort.
Harmonization of lighting with elements of the environment
Outlining a lighting design project for an environment requires thinking about its composition with the other elements that integrate it, such as colors and textures applied to the walls, for example.
When it comes to colors, they directly interfere with the way the lighting will reverberate. Light colors help in the reflection of lighting and give the feeling of spaciousness of the place. Dark colors, on the other hand, generate the opposite effect, and require a reinforcement in the intensity of the chosen lamp, to meet the principles of visual acuity.
The textures applied to the walls when smooth allow the rays to be reflected easily, while the rough ones usually generate light and shadow effects, providing a certain sinuosity to the optical field.
Warm or cold light
To talk about the temperature of the light has no direct relationship with heat radiation, but with the type of hue that each light bulb offers when turned on. Light with a low tint, considered to be cold, offers a cozy feeling. On the other hand, warm light, more frequently, makes the environment more stimulating. Knowing how to match these two types of light with the colors applied to the environments and their functionality will be crucial to promote visual comfort.
Direction of the lighting fixtures
You have already thought about harmonizing light with the other elements of the environment, and you have chosen the type of light (warm or cold) that best fits. Now it is necessary to think about which fixture will be used, and in their direction or angle. There is nothing more unpleasant than directing light at eye level, regardless of the environment where it is installed.
To highlight some element of the environment, opt for direct light concentrated on it. Adopting indirect light, that is, the one that is first cast onto a surface and then hit the rest of the environment, also helps to compose the scene, contributing to the desired visual comfort.
Color rendering index
Through the color rendering index (IRC) of the light bulb it is possible to measure the color fidelity that the lighting will reproduce onto the objects. It ranges from 0 to 100. When positioned on a scale of 80 to 100, regardless of the temperature of the light, those that faithfully reproduce the colors of the decoration and the products that make up the environment are considered.
m as cores da decoração e dos produtos que compõem o ambiente.