Lighted headgear is provided to enable clear vision in poorly lit locations. The lighted headgear has lights, such as LEDs that generate narrow light beam cones. The headgear is preferably a baseball-type hat with the LEDs secured in small notches in the forward edge of the brim, or in light modules...http://www.google.co.uk/patents/US6659618?utm_source=gb-gplus-sharePatent US6659618 - Headwear having a brim with illumination device