Lamps and lighting is an essential feature of modern living. Both for practical purposes, and for aesthetic reasons, the provision of light is ensured in virtually all spaces used by human beings in the 21st century.
Artificial light and natural light
A particular space can be illuminated either by artificial light or natural light. Artificial light fixtures are such as lamps with bulbs and other light fixtures are a ubiquitous feature of modern life. Natural day light can be captured to provide light to a space by means of windows and skylights. This is the oldest way of lighting the interiors of a living space. Daylighting reduces the consumption of electricity, and has been proven to have positive effects on the inhabitants of the space. For example, patients in hospitals and students in schools have been found to be in a better state of mind when there was enough day light in their living spaces.
Types of lamps
First of all there is the compact fluorescent lamps that can take the place of incandescent lamps in new and existing installations. LEDs or Light Emitting Diodes are another type that are devices in solid state, emitting light by electron movement in a semiconductor material. LED lamps are often claimed to be the best and environmentally friendly light source. Neon lights emit light in colours depending on the gas that is contained inside a glass tube. Halogen lamps are incandescent lamps that contain halogen gases like iodine or bromide inside. This renders it more effective than an ordinary incandescent lamp. Fluorescent light is a tube coated with phosphor and containing mercury vapour under low pressure. This emits white light.
Uses of lamps and lighting
The uses of lamps and lighting are rather obvious. We need light for practical purposes. However, there are other uses that are less obvious. Having proper and strategic lighting improves the appearance of a particular space. Also, living and working in a well-lit environment improves one’s performance. It also influences one’s mental state in a positive manner. In a study conducted in the 1970’s and 1980’s, it was found that patients who underwent surgery had shortened post-operative hospital stays if they had been assigned rooms which had a view of natural greenery, compared to those patients who stayed in rooms with windows facing a brick wall. They also took less analgesics than the latter group.