Proposed Safe Distance between Object & Artificial Light Sources in Historical Building or Museum in Terms of Conservation

It is well known fact that light is associated with its neighbouring spectrum of Ultraviolet ray (UV ray). UV has deleterious effects upon living and non-living objects. In order to avoid this bad effect of UV some simplified methods to need to try out. Experimentation has been carried out with Incandescent lamp, Conventional Fluorescent lamp, Compact Fluorescent Lamp (CFL) and Light Emitting Diode (LED) lamps and separately UV content as well as illuminance at various distances have been measured. UV-measurement has been made by UV meter made through world reputed make- Konica Minolta, Japan and illuminance is measured by Lux-Meter. The observations have been shown in the main body of the paper which shows successful results as per expectations. The system can be adopted for Museum lighting where important archives can be saved from bad effects of emitted UV from the ambient light sources. This simple methodology can thus be adapted for indoor application in Museum lighting/ Heritage building lighting where archives can be easily conserved.