Recent content by muffins321

Okay, thanks. :D Now all I have to worry about is making sure the beam still has enough intenisty to brun someone when it coems out of the lenses.

really? That's great! :D But the shape will be a circle right? not something ugly or malformed? :D

I am using a diode laser, you guessed right :D. The shape may pose a problem then...I guess I'll have to find a way for it to not look ugly (any ideas). I suspected it would not have the same power, so I guess I'll have to make the beam extremely powerful so that it will still be able to...

I see. All I want is for the beam to still be a beam when it comes out of the second lens, not for it to act like a flash light and send light everywhere, because I still want it to have the burning laser qualities that it had before it entered the lenses. So in the end, I still want to the...

Yes, I am taking all the precautions. I am going to make sure no one is on the same floor, I have protective goggles, and I am going to wear fireproof clothing...I love Science, but there's no need to go blind or lose a limb for it. :D Thank you for the diagram, it helps me so much. Just one...

So you're saying that I should expand the beam by diverging it, and then converging the expanded beam to make it smaller but also focus it? Also, do you have any suggestions as to what the power of the lenses would be? I know I'm gonig to have to get a convex and a concave lens, but I'm not...

So, here I am again, and I have now built a strong laser which can set things on fire. Yay me. :D But, the second step comes in..how am I supposed to expand the laser beam? The beam is a 0.2 cm circle, and I need to get it to at least 2.5 cm. Can somebody explain how I can do this? (Try not...

Oh, so I need to find another way to expand it... And yes, my skills are up to it, I have protective goggles. :smile:

Okay, thanks, the link also helped. :D The goal of my project is to pass a laser beam through a concave lens to spread out the beam and increasing it in size, but then also sending it through a convex lens so that it focuses. Both of the lenses will be circles, so my plan is to have the...

Wow, thanks so much, it's really going to help. If it's not any trouble, I'd like to ask a few more questions. So, the beam will expand, not refract right? Also, it will when it expands, it won't take on a flash-light type role, where the light is shining everywhere right?

I'm doing this for a home project over the summer. So let's say I took a small laser and passed the beam through some focusing lenses (or evena single lense). Is it possible for the beam to expand? Also, if the laser is powerful enough to burn through paper, will the focusing lenses be...