Hi, I recently bought a few 30mW Green Laser Modules from DealExtreme, and I started to dig over the limits of that module.
Originally, it cant burn anything, its only 30mW
First tryed to do the famous pot mod. I increased the current from 260mA to 360mA. But it only gets more heat at a big resistor (I think its a shunt resistor) and getting a original 30mW Module by side, I didnt see any difference.
I noticed that I can dissasemble the Laser Module in three parts.
One is the Laser Diode with the Crystal, the second is some kind of lens, the third is the colimating lens.
I noticed that removing the second part, the laser burns Black Insulation Tape and other stuff like dark wood. So I thought its some type of filter or so.
PS: The beam still colimated without the second part. It has no visible difference in beam width.
Here is a video that I made showing that:
YouTube - Burning with 30mW Green Laser from DX - Without POT mod
The first part only beam:
http://www.energylabs.com.br/project/get.php?arquivo=340
So, what might be the "lens" in the middle?
Originally, it cant burn anything, its only 30mW
First tryed to do the famous pot mod. I increased the current from 260mA to 360mA. But it only gets more heat at a big resistor (I think its a shunt resistor) and getting a original 30mW Module by side, I didnt see any difference.
I noticed that I can dissasemble the Laser Module in three parts.
One is the Laser Diode with the Crystal, the second is some kind of lens, the third is the colimating lens.
I noticed that removing the second part, the laser burns Black Insulation Tape and other stuff like dark wood. So I thought its some type of filter or so.
PS: The beam still colimated without the second part. It has no visible difference in beam width.
Here is a video that I made showing that:
YouTube - Burning with 30mW Green Laser from DX - Without POT mod
The first part only beam:
http://www.energylabs.com.br/project/get.php?arquivo=340
So, what might be the "lens" in the middle?
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