Laser pointer for Android program

Remove the filter. The filter is used to change the diversity of the laser beam. When you are ready to burn with the laser pointer, remove the lid so you can get a linear laser beam with a diameter of 1-5 mm, but if you want a way to burn things quickly, it may not be powerful enough. Extreme laser pointers are now generally green. This is not always the case, because for about two decades before the 2000s, there were only green laser pointer on the market. Only with the development of multiplier components at daily prices, the green light pointer was passed. For the human eye, this means a big step forward, because everyone perceives green is about 20 times better than red. Every extreme laser pointer needs a power source, mainly simple batteries or rechargeable batteries, some of which can also be charged via USB. The core of the laser is a semiconductor diode, which produces photons, that is, light. The two metal plates are tightly connected to each other, so when a voltage is applied, electrons can migrate, thereby repeatedly emitting photons.