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I'm new to this whole laser hobby thing so im sure this will sound like a noob question.... thats ok.
So lets say I have a laser pointer. I aim it at the wall a few feet away and the dot is say 3mm in diameter. Well what if I wanted to make the beam say 2 inches in diameter but not that i want a cone shaped beam, but I want the beam still collimated but 2 inches in diameter.
I thought at first what I was looking for was called a beam expander but after research it looks like beam expanders reduce divergance not expand the beam.
i dont want to reduce divergance, i want to make the beam 2 inches around when it exits the laser body and fly across the room still at 2 inches in diameter.
surely there is some really basic lab optic that will do that right?
So lets say I have a laser pointer. I aim it at the wall a few feet away and the dot is say 3mm in diameter. Well what if I wanted to make the beam say 2 inches in diameter but not that i want a cone shaped beam, but I want the beam still collimated but 2 inches in diameter.
I thought at first what I was looking for was called a beam expander but after research it looks like beam expanders reduce divergance not expand the beam.
i dont want to reduce divergance, i want to make the beam 2 inches around when it exits the laser body and fly across the room still at 2 inches in diameter.
surely there is some really basic lab optic that will do that right?
It will increase the diameter of the beam , decreasing divergence, which is not a bad thing unless you purposely want it to have worse divergence.
