I want to build a projector with multiple lasers, but creating a knife edge array is not that simple.
If the beams converge on the first mirror and are not parallel, I assume that they will create different patterns for each laser at an angle
I will buy a 4w laser, I want to know if the laser will be unfocused and have a spread of around 20cmx20cm(8"x8") at a distance of 5 meters.
Will it be dangerous if it will hit the eyes?
Hello
I always wanted to play with lasers and now my dream is coming true. So I will ask all the possible question about lasers that I can think of before I buy my first laser.
The first question will be about the danger of an unfocused 4W laser at around 5 meters distance