Ball point pen with self-provided illuminator

Claim 1

A ballpoint pen with self provided illumination, comprising an illuminating device that includes a power source arranged in an illuminating tube, an electrically conductive spring leaf being fixed to a sliding switch operatively mounted in said tube for connecting one pole of the circuit, the other pole of the power source being directly connected with the end-point of a lamp bulb mounted inside a lamp reflector, said lamp reflector is coupled with said illuminating tube by means of a screw joint; a writing device comprising an opaque combining tube, a transparent pen holder, a writing cartridge and a ballpoint pen nib operatively connected to each other, said combining tube comprising on the inner wall a transparent tubular ring for holding the writing cartridge in an operative position and a light reflecting sleeve coupled with the pen holder by means of a screw joint, said writing cartridge being mounted inside the writing device with the ballpoint pen nib protruding beyond the pen holder for writing, and said writing device being coupled with the illuminating device by means of a screw joint.