Stylus pen

A stylus pen, comprising:

• a hollow pen body of which a top end is concaved downward to form a cavity, a top of the cavity being covered with a cover glass;
• an electromagnetic touch pen module including an electromagnetic pen head which is disposed in the top end of the pen body, and a first circuit board which is mounted to an inner sidewall of the pen body, the first circuit board electrically connecting with the electromagnetic pen head for controlling the electromagnetic pen head to output corresponding electromagnetic signals;
• a camera module including a second circuit board, a camera lens embedded in a bottom wall of the cavity of the pen body, a USB connector disposed in a bottom end of the pen body, and a power button embedded in a lower position of an outer sidewall of the pen body, the second circuit board being mounted in the pen body and electrically connecting with the camera lens, the USB connector and the power button, the power button controlling work states of the camera module, images taken by the camera module being capable of being transmitted out by virtue of the USB connector;
• a rechargeable battery pack disposed in the pen body and connected with both the first circuit board and the second circuit board to supply power for the electromagnetic touch pen module and the camera module, the rechargeable battery pack being capable of being charged via the USB connector;
• and
• a function button embedded in an upper position of the outer sidewall of the pen body and electrically connected to the first circuit board and the second circuit board,
• wherein through powering on and off the power button, the stylus pen switches working modes between the camera module and the electromagnetic touch pen module, accordingly, when the stylus pen works by the camera module, the function button is acted as a shutter button, when the stylus pen works by the electromagnetic touch pen module, the function button is acted as a right mouse button.