Recent content by strat1953

Im working on a project with a 150mw green laser module with an adjustable focus ring .can i make the beam out of focus and also put a small lens in front of the beam to make it show a 5" round beam at 10ft from the laser? Will this make it safe if someone happens to look into it? Thank you for...

im working on a robot project for a friend.he wants me to install the laser behind a hole in the robots face.the robots head moves and it makes sound using a remote control.its 8ft tall. my question is he wants to use this at his backyard parties. how can i use this laser and keep it safe from...