Abstract: A writing instrument includes a tube having a cap secured to the lower portion and having a light element engaged in the cap. A pipe is slidably engaged in the tube and engaged on a writing element. A barrel is secured in the tube and a housing is slidably engaged in the upper portion of the tube. An insulating sleeve is engaged in the housing for receiving a battery and has a knob engaged on top. The knob is electrically connected to the housing for energizing the light element and is disengaged from the housing for turning off the light element.

Abstract: A retractable pen with illumination means has coaxial upper and lower barrel members which consist of a conductive body. A conductor element and a light-emitting diode having two chips are fitted in the front part of the lower barrel member. The chips of the light-emitting diode are arranged on symmetrically sides of the writing tip. When the reservoir tube is fitted in the upper and lower barrel members, the conductor element is connected with cells placed in the rear end of the upper barrel member; thus, the light-emitting diode illuminates evenly.