Patent ID: 8793212

Claim:
A system for managing a user's exposure to ultraviolet radiation, comprising: a user input interface; display circuitry including a screen; control circuitry including at least one processor wherein the control circuitry is configured to communicate with the display circuitry and the user input interface; data storage means for storing program instructions that, when implemented by the control circuitry, are configured to: determine UV index information corresponding to a user's location; communicate with the user input interface to retrieve information for at least one user parameter, in which the at least one user parameter includes current time; calculate at least one recommended exposure time based on the UV index information and the user parameter information; and communicate with the display circuitry to display the recommended exposure time; the data storage means is further configured to store data representing a UV exposure level to produce a minimal erythemal response; and the program instructions are further configured to: calculate actual UV exposure level as a Gaussian function of the current time and the UV index; calculate the total daily recommended UV exposure; and calculate the number of minutes to receive the total daily recommended UV exposure based on the current time.