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Ok sure thanks! Are these diodes known for having bad rectangular artifact issues? Also, whats the power of that diode?

So in conclusion, its basically inherent to almost all lasers? I don't really get it on my 445 laser though... Do you guys think thats because my 445 is a better quality laser?

What do you mean ?

Ok thanks so much for replying! So, does it mean that the more powerful 520nm laser i have, the more obvious the rectangular artifact would be? It's not a quality issue right?

Oh okay thanks! Do all lasers have this issue? As in the 520s and 445s ? I feel like the one i'm experiencing is quite serious, the rectangle is very obvious

Thanks so much for ur help! Is there any way to overcome this? Or is every 520 laser like this? All my previous lasers i haven't had any of such issues, or maybe they just aren't serious. What factors affects how visible/serious the rectangular spot is?

This is the what i see when i unscrew the cap, does this particular diode have issue?

Mine has this rectangular shape even when the laser is at its most focused spot, and it only occurs with my 520nm laser, but my 532nm or 445nm laser has no such issue. Is it normal? Btw, thanks for ur reply!

Hey guys, I recently bought a green laser, a 150mw 520nm version. The beam is strong and powerful. However, whenever i shine the dot at a white wall, i will get something like this. The rectangle is not as bright as the dot, but it is noticable and really makes me annoyed. Its not the problem...