well...more information ? the point is this : I have 3 laser modules with fan cooling 5V , I would like to collimate the 3 laser beams into a single beam ,all here the 3 lasers are blue, with a wavelength of 445nm, and are all 3 of 445nm ,the light-emitting diodes that fit within them are all Nichia , 5.5 W and 2.5 W are 9mm while the 1.6 W is 5.6 mm ,Diachi explained to me that unfortunately it is NOT possible to focus 3 beams having the same wavelength , to be able to make such a collimation, there is a need that the 3 laser have different wavelengths ....all here ! so unfortunately I can't carry forward my project ,patience I will use them individually ,perhaps by transforming them externally to laser pointers ,just to have the impression that they are pointers and NOT laser modules
This is the one to 2.5 W (identical and precise)
This is the one to 1.6 W (identical and precise)
This is the one to 5.5 W (identical and precise)
Let me know if there is a vain hope to go forward with my project , in the meantime, I thank You ALL for listening to me and given advice , thanks guys
Oh thanks a lot ! finally I can finish my project ! we hope to come out a powerful beam ! so at least I use it for cooking and saving on your gas bill maybe by wrapping the whole (a finished work) to the inside of a pipe with a single exit hole of the beam , so as to not lose emission !
By wrapping the laser in a pipe, you won't do anything to affect the emission unless you cut off some of the beam. Also, I do not believe cooking with this laser is a good idea or a likely application. What safety goggles do you own?
I have lenses of red color in the glass specially made from my optical zeiss for laser blue ! you know I was joking on the fact of cooking ! beautiful London, I have dear friends there , and one of these has just passed the tests to be admitted as the driver of the "red bus" double-decker
Do you know what OD they are at. Some of the things that we hear on this forum, It wouldn't surprise me London has it's nice parts. Nice job for your friend getting his bus license. Not a easy thing in London.