Patent ID: 8075154

Claim:
A headlight, comprising: a housing positionable on the head of a user, the housing having a front end, a rear end, an air inlet, an air outlet, an intake chamber in fluid communication with the air inlet, an exhaust chamber in fluid communication with the air outlet, and a passageway establishing fluid communication between the intake chamber and the exhaust chamber, the passageway positioned forward of both the air inlet opening and the air outlet opening; a light assembly supported by the forward end of the housing; a heat sink positioned in the housing and in thermal communication with the light assembly to remove thermal energy from the light assembly, the heat sink positioned in at least one of the intake chamber and the exhaust chamber; and an air mover supported by the housing in such a way as to move air into the housing through the air inlet, through the intake chamber, over the heat sink, through the exhaust chamber, and out of the housing through the air outlet, wherein the heat sink has a base portion and a plurality of spaced apart pins extending from the base portion, the base portion being positioned in the exhaust chamber and the pins extending into the passageway, wherein each of the pins has a square shaped cross section with a width, and wherein the pins are arranged such that each pin is spaced apart from each adjacent pin by a distance that is substantially equal to the width of the pins.