Application and research of laser pointer flashlight

A movable lens type laser green laser pointer, which includes the switch key on the housing, the battery cover and the luminous body, switch, battery positive electrode connection piece, battery negative electrode connection piece, etc. arranged on the circuit board in the housing; on the front part of the luminous body Set up a lens holder that can move forward and backward to adjust the focus; set up the lens on the lens moving seat; also set the focus cap, lens, positioning spring and copper head on the front of the luminous body from front to back; adopt the lens to move Focusing; using this structure to focus, simple operation and reliable work. With the rapid development of science and technology, the application of laser technology in the field of optoelectronics has become increasingly widespread, and the focus of laser light sources has also become an indispensable part of the technology. Generally, PCB technology is used to adjust the focus, that is, to fix the lens and move the light-emitting component or circuit to complete the focusing work. There are many moving parts in this way, the moving range is large, the accuracy is poor, and the mechanical failure is relatively easy to occur. Laser flashlight has become a must-have for household life, especially when traveling, it is even more needed. When traveling, when the air quality in the tent is not good, negative ions can be used to purify the air in the tent. Existing products It only provides lighting functions and has simple functions. If it can be used as an emergency light at home, a laser flashlight is more cost-effective.