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Newbie Laser Project help

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Aug 31, 2013
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Hello everyone, I am building a small device that has 3 lasers controlled by a switch and I need a bit of help with the electrical engineering.

I NEED TO POWER 3 LASER MODULES (DETAILS BELOW)

- How do I design the circuit (parallel/series)?
- What battery would be optimal for this (9v/AAA)?
- Do I need additional components (drivers/resistors)

(3) 650nm 5mW (Red) laser Line module 3VDC (RMD-9x22)

Product Details

Optical Line Power : 2.0-3.2mW
Operating Current : 20-40mA
Operating Voltage : 3.0V(+/-0.25V)
Wave Length at Peat Emission : 650nm(640-660nm)
Operating temp. Range : 14-104F
Storage Temp. Range -4-140F
Expected Life: 5,000 hours
Size (DxL ) : 9X22(mm)
Fan angle : 110 degree
Line width : 1.5-2mm @ 1m
Line length : 1:3.0

Thanks for your help in advance!
 





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