Rechargeable laser pointer for classroom use

With the increasing development and improvement of electronic technology, electronic equipment and products have penetrated into all aspects of people's daily lives. In education or training or conferences, laser pointers are widely used due to their excellent remote indication function. The laser pointer is also known as the Laser pointer or star pointer. Its low-power visible laser allows users to maximize the advantages of body language in teaching and presentations. For example, it makes teaching speech more vivid and perfect. The inconvenience of using the mouse in classrooms and meetings also has the advantages of helping astronomers to identify the stars. The rechargeable laser pointer uses a hard switch to control the turning on of the laser pointer, that is, when the button on the laser pointer is pressed, the laser pointer turns on. Although this working mode is simple and convenient, for some unavoidable misoperations (such as accidentally touching the switch), it may cause the laser to directly hit human eyes and other parts, which is more dangerous. Moreover, more importantly, if the working voltage of the laser light emitting device in the laser pointer is unstable, it makes the use of the laser pointer not safe and reliable enough, and makes the laser light emitting device extremely easy to be damaged, thereby reducing the life of the laser pointer.

2021-09-24 11:16:36