Device for adjusting brightness of brake lamps

A device for automatically adjusting brightness of a brake lamp of an automobile, comprising a bulb mounted to the central portion of a reflector and a lens attached to the outer edges of said reflector, further comprising:

• a hinge pin transversely mounted to the inside surface of said lens;
• a plate hinged to said pin, said plate having a curved shape corresponding to the inside surface of said lens and having a plurality of holes, and adapted for normally closing the upper portion of said lens and selectively opening said lens with an inertia force acting on the automobile;
• a weight mounted to the upper end of said plate for selectively opening the plate so as to increase brightness of said brake lamp;
• an electromagnet mounted to the upper portion of the inside surface of said reflector;
• an ECU connected to said electromagnet for controlling a magnetic force of said electromagnet;
• a plurality of sensors connected to said ECU for sensing speed characteristics of the automobile;
• and
• an elastic member mounted to said hinge pin for normally biasing said plate so as to elastically return the plate to its original position.