Shoe

Abstract

An exemplary shoe includes a upper, a sole, an LED (light-emitting diode) and a power supply device. The upper is disposed on the sole. The sole includes a receiving space. The LED is installed on an outside surface of the sole. The power supply module is for providing electric power to the light emitting diode. The power supply module further includes a piezoelectric member coupled to the sole and a electric power storing device. The piezoelectric member is disposed between the upper and the sole. The electric power storing device is received in the receiving space of the sole and electrically coupled between the piezoelectric member and the light emitting diode.

1 . A shoe, comprising:
 a sole;   an upper disposed on the sole;   a light emitting diode installed on an outside surface of the sole;   a power supply module for providing electric power to the light emitting diode, the power supply module comprising a piezoelectric member coupled to the sole and an electric power storing device, the piezoelectric member being configured for generating electric power, the electric power storing device being electrically coupled between the piezoelectric member and the light emitting diode.   
     
     
         2 . The shoe according to  claim 1 , wherein the light emitting diode is installed on a front outside surface of the sole. 
     
     
         3 . The shoe according to  claim 1 , wherein the electric power storing device comprises a capacitor or a rechargeable battery. 
     
     
         4 . The shoe according to  claim 1 , wherein the power supply module further comprises a switch electrically coupled between the electric power storing device and the light emitting diode. 
     
     
         5 . The shoe according to  claim 4 , wherein the power supply module further comprises a detecting device, the detecting device having a predetermined standard brightness value stored therein, the detecting device being configured for sensing a brightness of the exterior environment and comparing the detected brightness with the predetermined standard brightness, and controlling the switch to open or close according to the comparison result. 
     
     
         6 . The shoe according to  claim 5 , wherein the detecting device further comprises a sensing cell and a comparing cell, the sensing cell being configured for sensing the brightness of the exterior environment, the comparing cell being configured for comparing the detected brightness with the predetermined standard brightness thereby controlling the switch to open or close according to the comparison result. 
     
     
         7 . The shoe according to  claim 1 , wherein the piezoelectric member is made of a material selected from a group consisting of barium titanate, lithium germanium oxide and polyvinylidene fluoride. 
     
     
         8 . A shoe comprising:
 a sole having a heel portion;   an upper attached on the sole;   a light emitting member;   a piezoelectric member embedded in the heel portion for generating electric power, and   an electric power storing device configured for storing the electric power and being electrically coupled between the piezoelectric member and the light emitting member.