i) Special ward in hospital: For the patients in the wards, lighting should create a cozy and pleasant atmosphere. Lighting in the wards should be planned in such a way that it meets the specific requirements of the patients in a ward, for example, some of the patients may like to sleep before the scheduled time of ‘lights out ’ so a high level of illumination will be a nuisance to those patients. Considering all these requirements, the level of illumination of 100 lux is acceptable for general lighting of wards which will also meet the needs of the nursing staff. Apart from general lighting, individual patients can be provided with additional lights in the form of bed head lights which can be switched ‘on’ or ‘off’ by patients themselves. These lights also contribute to the general appearance of the wards by breaking the monotonous uniformity that will result from general lighting.
ii) Dentist’s Cabin: The right dental lighting should strike a balance between providing enough high intensity illumination to enhance work precision, especially when it comes to procedures such as colour matching for restorations and cosmetic work, as well as reducing eye strain and improving energy levels as light can affect how tired you feel at the end of the day.
That blue light is a dental curing light. It's basically a piece of dental equipment that we use to harden or cure our resin or basically, tooth-colored filling materials, as well as some other materials that we use such as cements and bonding agents that we use to restore your teeth back to health.