Introduction of Ring Laser Pointer

Laser pointers, also known as laser pointers, pointing stars, etc., are pen-shaped transmitters designed to be portable, easy to hold, and processed into laser modules (light-emitting diodes) with visible lasers. Common laser pointers include red light, green light, blue light and blue-violet light. It is usually used by reporting, teaching, and tour guides to project a light spot or a light directed at an object, but it is in a specific place. The laser pointer is now an important part of the teaching process for teachers. Teachers can use the laser pointer to indicate the location of the content they are telling. Modern teaching often uses PPT, and the teacher will prepare the PPT in advance and then put it in the classroom. Demonstration, because there are often more points on a page of PPT, in order to facilitate the teacher to tell the students the location of the points when demonstrating the PPT, the teacher will use a laser pointer when giving a lecture. However, the existing laser pointers are relatively similar in structure. They are all long strips, have no novelty, are inconvenient to carry, and are easy to lose.