Step 3: Laser Stability
The LASER was placed on top of a can. After adjustment the laser will wobble back and forth a little bit for quite a while till settling. I eliminated this anoyance by sticking a small wad of tissue paper into the opening and placing the laser upon this.
This laser uses an Open Can diode I found in a Lite On DVDRW drive, it has a 3 tripple A (AAA) cell battery holder and I have a 2.2 ohm resistor in series with the diode and I measured 310ma laser drive current. I used parts from the local hardware stores and for a colimnating lens I used the assembly on the end of a cheapo laser pointer. The lens is made of clear plastic. There is a switch on the end of and if i click it once it is on, click again it is off.
This laser uses an Open Can diode I found in a Lite On DVDRW drive, it has a 3 tripple A (AAA) cell battery holder and I have a 2.2 ohm resistor in series with the diode and I measured 310ma laser drive current. I used parts from the local hardware stores and for a colimnating lens I used the assembly on the end of a cheapo laser pointer. The lens is made of clear plastic. There is a switch on the end of and if i click it once it is on, click again it is off.
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andrewnonymous
says:
Nov 13, 2007. 1:22 PMReply
man i want one of those, how much did it cost you to make it?
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