Light is part of various disciplines, shaping the world as we know it. In physics, it serves as a measure of speed and makes vision, and the recording of images by the eye and camera lens possible. Throughout art history, the representation of light - or its absence - has guided secular movements in various manifestations with equally different techniques and supports. This means that light - and its derivative shadow - can create environments, atmospheres and sensations, which can be perceived in objects and spaces. Light is also a part of architecture.
Subscriptions are quickly becoming an integral part of everyday life. For example, streaming platforms have completely replaced the need to own video cassettes, while ride-sharing services partially cover the need to own a private car. Subscriptions have been largely understood as digital services, but a new trend suggests that the same concept could be transferred to physical objects in the near future. Instead of owning a fridge, a washing machine, or even light bulbs, one could acquire a subscription to ensure the freshness of produce, clean clothes, and a well-lit home.
The concept is known as the “subscription-based economy,” a variant of the “circular economy” notion. It postulates that instead of owning some of the objects used every day, one could subscribe to a service to gain access to the same benefits, but without the need to own, maintain or dispose of the object in question. Consumers no longer buy products; they buy access to services. Sometimes, it would mean simply leasing the object instead of purchasing it, but the model goes one step further. It inscribes a shift of responsibility and mentality. Because consumers no longer own the objects, the responsibility to reuse and recycle falls to the producers, who are now in charge of the entire life cycle of the objects they create.
The simple activity of taking a walk in the evening can easily turn from a relaxing leisurely activity to a dangerous endeavor by removing just one element from the streetscape: public lighting. While not often recognized as defining aspect of urban environments, artificial illumination has played an essential role in defining the character of modern cities. Crime control, the appeal of nightlife, the rise of the shop window, revolutionary movements, utopias, and ideals of social equity are all concepts whose development is tightly linked to the history of public lighting. Technological advancements over the past centuries have continuously shaped the appearance and symbolism of streetlamps. Still, the this element has remains a constant throughout its history.
Lighting is often a numbers game — too much, and interiors lose their edge (literally), too little, and the dim atmosphere can make a space seem bland. Its importance in interior design cannot be overstated: done right, it not only accentuates a space's architectural features but also makes inhabitants feel at ease. As Carmelo Zappulla of Lighting Studio External Reference explains in a recent interview with Architonic, light is a crucial tool to add an emotional element and "animate a space." It follows that a lighting concept gone wrong can have catastrophic consequences for an otherwise perfectly designed room.
Artificial lighting offers a range of strategies for interior design. Widely used in commercial projects and restaurants as an aesthetic device to attract customers and to create environments that stimulate the senses, it can transform rooms and create cozy and well-lit places in residential projects.
Over time, the kitchen has ceased to be considered only as a workspace and became a meeting and leisure area. For many, it is the heart of the home. Therefore, it is necessary to design an ambiance that can help when preparing dishes and also bring comfort during a gathering with friends and family.
Linear Suspended Lighting. Image Courtesy of Alcon Lighting
Lighting plays a crucial role in architecture: to allow users to see, safely inhabit spaces, and carry out their daily activities. But its power has long exceeded these basic functions, primarily driven by technological advances and new design trends that have led to greater innovation and creativity. Contemporary lighting design has the ability to completely transform a room, impacting visual comfort and setting the tone by defining volumes, drawing attention to texture and enhancing colors. It can also determine shape and size perception; for example, in a room that is particularly small, having extra lighting reflect off light-colored walls will help the space appear larger. Similarly, light has been proven to affect mood, concentration and overall well-being. Whereas an adequately illuminated environment is associated to warmth and improved energy levels, poor lighting can lead to health deficiencies, including headaches, eyestrain and even depression.
Natural or artificial, lighting is one of the most important elements in architecture, directly affecting our perception of spaces. It is capable of defining volumes, enhancing colors, textures, and therefore, contributing to the overall relationship between dimension, proportion, and contrasts. One of the many challenges of architecture is to shape spaces based on light and shade, and sometimes natural light is not enough, requiring additional light sources to be installed and controlled.
Lighting design for exhibition spaces in museums can be quite challenging because light must simultaneously enhance the space, preserve the integrity of the artworks and highlight them in a way that ensures the best conditions for the visitor's enjoyment.
In addition to having the highest CRI (Color Rendering Index), daylight contributes to a feeling of comfort and well-being in the built environment. In exhibition spaces, natural lighting is important to accurately reveal the colors of the objects on display, which is very significant for works of art and provides more visual comfort for visitors to clearly perceive the exhibits.
In dystopian films, it is a common trope to depict the sky as filled with a thick fog, blocking the sun's rays and bringing a dark atmosphere to the scenes. Whether in Blade Runner or in a Black Mirror episode, the lack of sun commonly represents a future we would rather not live in. The sun provides heat to planet Earth and is a great source of light energy, essential for the survival of many living creatures. We can generate electricity from the sun and still use only a fraction of the energy it provides. Sunlight also regulates our circadian cycle, which affects our mood. But recent forest fires and industrial pollution in some large cities have already made the dystopian blockage of sun a relatively common phenomenon, depriving hours of sunshine from many inhabitants. Concurrently, with the COVID-19 pandemic, we are living a plot that few science fiction writers could have predicted, and new technologies and solutions have emerged to try to contain the spread of this invisible enemy. Can the sun, or specifically ultraviolet radiation, kill viruses and bacteria? Could it kill the coronavirus?
Of the varying aspects of architectural and interior design, lighting is one element that can visually enhance or destroy a space. This influence stems from the wide range of artificial lighting designed for the most widely differing tasks, environments, and purposes, including internal and even external spaces such as facades and landscape projects. Think of two environments with the same dimensions and layout. Suppose that in the first, only one point of light was applied - a general, unspecified point of light in this case - while in the second a light project was performed considering the use of space and valuing certain aspects of the architectural design. Undoubtedly, the second option is a more pleasant space. In the same way, poor lighting design can ruin an environment. But how is it possible to achieve these different results?
In a previous article, we already showed how to calculate the correct light intensity required for each environment. Here, we compile a list of some of the key types of lighting systems.
