hey!
I am quite new to lasers, but I have understood everything about it.
I plan to build a LM317-driven DVD-burner laser module.
I have access to small glass lenses from old cameras, both concave and convex.
Now I could not found a serious tutorial about building a optical system to
archive a long and thin beam that will be visible over several 100 meters.
It should be possible to to this with 2 lenses, like in the picture.
Although I found articles that use the lenses in an other direction.
So how to do it REALLY?
Thanks
I am quite new to lasers, but I have understood everything about it.
I plan to build a LM317-driven DVD-burner laser module.
I have access to small glass lenses from old cameras, both concave and convex.
Now I could not found a serious tutorial about building a optical system to
archive a long and thin beam that will be visible over several 100 meters.
It should be possible to to this with 2 lenses, like in the picture.
Although I found articles that use the lenses in an other direction.
So how to do it REALLY?
Thanks