- Joined
- Apr 23, 2011
- Messages
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I just built a 445nm laser, bought the diode with aixis from danglasers.com, bought the driver from ebay-
1A 1.2A 1 WATT 445nm Laser DRIVER Circuit Board 1W | eBay
Buttoned it all up, worked great.
Day later, after 18 seconds of the laser running, the beam dims about 50%. I have it running off (6) aaa, and Thought it was the batteries, but new batteries did the same thing, as well as two fresh cr123's. I have a 8.3v 230ma power source, but I measured it with a multimeter to have 10.7v .9a, and the beam did not dim even after a minute, although the heat sink went from ambient to about 110F. Also, when I first assembled, the power source would allow it to burn, now it does not. Have I caused a malfunction in the driver or diode? Do I just need to go with different batteries like the 22600's? Help please, this is my First build, and I just bought parts for a 405nm 100mw that I really dont want to F up. Thanks all.
445nm Laser Problems | Facebook
^link to the album pictures, Sorry couldn't just put them here...
YouTube - 445nm Laser
^and an visually explanational video
1A 1.2A 1 WATT 445nm Laser DRIVER Circuit Board 1W | eBay
Buttoned it all up, worked great.
Day later, after 18 seconds of the laser running, the beam dims about 50%. I have it running off (6) aaa, and Thought it was the batteries, but new batteries did the same thing, as well as two fresh cr123's. I have a 8.3v 230ma power source, but I measured it with a multimeter to have 10.7v .9a, and the beam did not dim even after a minute, although the heat sink went from ambient to about 110F. Also, when I first assembled, the power source would allow it to burn, now it does not. Have I caused a malfunction in the driver or diode? Do I just need to go with different batteries like the 22600's? Help please, this is my First build, and I just bought parts for a 405nm 100mw that I really dont want to F up. Thanks all.
445nm Laser Problems | Facebook
^link to the album pictures, Sorry couldn't just put them here...
YouTube - 445nm Laser
^and an visually explanational video