RELATIVE ACCUMULATION ULTRAVIOLET RAYS QUANTITY MEASURING APPARATUS AND METHOD FOR PROVIDING INFORMATION ABOUT A RELATIVE ACCUMULATION ULTRAVIOLET RAYS QUANTITY

A relative accumulation ultraviolet ray quantity measuring apparatus and a method of providing information about a relative accumulation ultraviolet ray quantity are provided to display a hazard level of an ultraviolet ray exposure amount to a user. A relative accumulation ultraviolet ray quantity measuring apparatus includes a timer(110), a measurement part(108), a relative accumulation ultraviolet ray quantity calculation part(112), a memory part(102), and a controller(100). The timer checks a time exposed by an ultraviolet ray. The measurement part measures intensity of the exposed ultraviolet ray and calculates the intensity of the ultraviolet ray as an ultraviolet ray exposure amount. The relative accumulation ultraviolet ray quantity calculation part calculates a relative value of the ultraviolet ray exposure amount. The memory part stores critical values for determining whether the exposure amount is more than a hazard amount. The controller alarms to users if the exposure amount is more than the hazard amount.