Patent ID: 8147083

Claim:
An adjustable, wearable headlight assembly, comprising: a. a main body comprised of (i) a bore having a central axis and adapted to receive and retain a removable light cartridge and (ii) an aperture in a sidewall of the main body; b. a removable light cartridge disposed in the bore of the main body and comprising a light source that includes at least one electrically powered lamp and circuitry for connecting the lamp(s) to a power supply, wherein when operably disposed in the main body the light source is positioned proximate to the aperture so as to allow light produced by the light source when energized to exit with a direction of illumination substantially perpendicular to the central axis of the main body's bore and pass through the aperture and out of the headlight assembly; and c. an adjustable lens associated with the main body's aperture and proximate to the light source, wherein the adjustable lens can be adjusted in relation to the aperture to adjust one or more parameters associated with light produced by the light source when energized.