LIGHT PEN EQUIPPED WITH SECURITY FUNCTION AND LEARNING MAT WITH THE LIGHT PEN EQUIPPED WITH SECURITY FUNCTION

摘要

PURPOSE: An electronic pen and a mat for educating a child thereof are provided to protect a child by using the material of a cover with nontoxic material. CONSTITUTION: An optical sensor(111) is installed in the leading end part of an electronic pen body(110). An optical sensor protective body(200) is covered on the optical sensor of the electronic pen body. A recess(112) is formed in the jaw of the electronic pen body contacting the side of the optical sensor protective body. The recess is used in order to easily eliminate the optical sensor protective body. The optical sensor protective body is formed into nontoxic material.