There is no particular difficulty in manufacturing diodes

  • Figuring out how to make them, which semiconductor materials, deposition, and heat dissipation are the difficult parts. However, as I said, some laser pointers may cause some damage to your eyes, so if you want one or one, please make sure not to point it at anyone's eyes. Even if you have a friend pointed out that there is laser light in your eyes and thinks it is very interesting, but this is not the case, and making a mistake does not constitute right. Just show them how attractive you are.