Outdoor time tracking via eyeglasses

Abstract

An eyewear and a method for determining user exposure wherein the eyewear includes at least one first sensor attached to a frame of the eyewear and wherein the first sensor is selected from at least one of: ultraviolet light sensor (UVS), photopic ambient light sensor (ALS), and a controller configured to receive values for a photopic light level and an ultraviolet light level from the at least one first sensor, provide a timeline for the received values of the photopic light level and the ultraviolet light level, calculate from the timeline, the photopic light level, and the ultraviolet light level, a probability of time duration the eyewear has been exposed to outdoor environment, and provide the calculated probability of time duration for a user of the eyewear.

Dependencies are inferred from the claim text.