Recent content by microgrit

It is exactly what i need ! A little bit expensive but i think it is the right lens for me .:thanks:

Hi, I am planning to make a red laser with a lpc-815. My goal is to have a beam diameter between 3 and 5 mm and as low divergence as possible. I don't care at all about having high power. I don't want to have good burnig power, i just want a nice beam. Of course i used the search engine of the...

Hi, I am about to make a laser using a lpc-815 and module coming from modwerx. I am wondering what kind of beam i can get with it ? What is the beam diameter ? Is it easy to have a good collimation or is there some divergences issues ? Thank you !

Oh yes ! This is diode coming from DVD burner. It's a cheap funnny project. I am going to use it. :thanks:

10nm wide is not really a problem. Do you have link to a web shop where i can buy this can of diode ?

Thank you for your help. goninanbl00d : i think 200-350mW is far too much ! May be it would be expensive and dangerous for my eyes ! This afternoon, a friend of mine gave me a 5mW red diode and it was almost what i need. I just need a little more. I think i am going to buy a 10mW. Bluefan ...

Or i have another idea. All the red laser diode i saw have three pin. 2 are for making the diode works and one is for a photodiode. I think the goal of the photodiode is to controle the diode. If i buy a red diode in wich electronic is source of problems for me, maybe i have just to cut the...

Thank you :thanks: So i have to change. My green laser will not fulfill my wishes. :( I have to choose a red laser diode module. But i think in some kinds of red diode there are also some problems with electronique. In a forum speaking about interferometry i had this reponse : "Another red...

Hi, I am a french astronome and in order to check the quality of the mirror of my telescope i have made a bath interferometer. You can find what is it here : Bath Interferometer - Starry Ridge For this purpose i use a 1mW green dot laser diode module. It works well but it would be better if i...