Patent ID: 7022973

Claim:
An advertising light emitting pen comprising an upper pen tube and a lower pen tube; the upper pen tube including a light emitting device, and a push-and-brake device for driving the light emitting device to move; the lower pen tube including an outer tube, an inner tube in the outer tube, a refill in the inner tube, a resilient spring in the inner tube and below the refill, and a light guide tube in the inner tube and being passed by an upper section of the refill; wherein a top of the light guide tube resists against a lower end of the light emitting device; a surface of the inner tube is coated with film having advertising patterns or texts thereon; the film basically is transparent except pattern or texts; when the light emitting device lights up, light transmits into the inner tube through the light guide tube and then emits out from the inner tube; the light emits from or reflects through the outer tube to radiate onto a paper to be written.