Ive read a lot of posts and have found no definitive answers for this
I'm building a laser pointer (red). I know I'll need a lens for it. Do all handeld lasers use a collimating lens? If so,why? If not why? Can you use any small lens made for a handeld with any color diode? If not why?
I'm planning on making my own heatsink. Is there a standard size to drill and tap for a focusing lens assembly? Say, if I were to buy one for it. And how close does the lens need to be to the diode? I have read it goes on the bottom of the assembly so I know it's reletively close. What the closest it should be?
Thanks for any help.
I'm building a laser pointer (red). I know I'll need a lens for it. Do all handeld lasers use a collimating lens? If so,why? If not why? Can you use any small lens made for a handeld with any color diode? If not why?
I'm planning on making my own heatsink. Is there a standard size to drill and tap for a focusing lens assembly? Say, if I were to buy one for it. And how close does the lens need to be to the diode? I have read it goes on the bottom of the assembly so I know it's reletively close. What the closest it should be?
Thanks for any help.