Patent ID: 7140747
Filing Date: 2006-11-28
Classification: F21V

Abstract:
1. A focusing flashlight, comprising: a housing body having a first end and a second end; a bulb holder positioned at the first end of the housing body; a bulb positioned in the bulb holder; a tail cover mounted at the second end of the housing body; a reflector connected to the bulb holder by a plurality of screw threads for adjusting the position of the bulb and having a barrel portion; a lock device between the reflector and the bulb holder to fix the relative position of the reflector and the bulb holder; and a plurality of grooves elongated in an axial direction formed on an outer wall of the barrel portion of the reflector at equal intervals; wherein the lock device has a cylindrical part with protruding ribs formed on an inner wall thereof at equal intervals to be engaged with the grooves, and the lock device has projections formed on an end of the lock device facing the bulb holder at equal intervals; and wherein the bulb holder has a flange on an end of the bulb holder contacting the housing body and has a plurality of recesses formed on the flange for receiving the projections at equal intervals.