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FrozenGate by Avery

Pictures of a 780nm laser build

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Hi all

I had some 780nm diodes left over from harvested sleds and have decided to build a 780nm laser.
My DX Dilda red laser has short-circuit inside and burnt the driver and the red diode. So I use this host for the build.
All the components are removed from the pcb and I use the LM317T for the new driver. The current was set op 224mA by a 5.5Ohm resistor. I didn't want to heat up the 1/4Watt resistor too much.

The famous Dilda laser :D
780nm-1.jpg


Flexdrive and Jib driver to compare the original driver.
780nm-2.jpg


Plenty of room to use the LM317 ic. It was place on a sticky heatpad.
780nm-3.jpg


The burn mark from the short-circuit is still there.
780nm-4.jpg


Ready to lase
780nm-5.jpg


A tiny red spot burning the paper. A very small smoke is seen :D
780nm-6.jpg


I hope you like it and be carefull with the invisible 780nm laser.
 





Yeah cool :) wanna buy a nice host with lens assebely ?


<--- click for big
 
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It has 160mW output measured with the Ophir LPM.
That was a long time ago I have build that 780nm laser. I have another 780nm diode in the C6 host. I don't use much of them. The dot and beam are invisible and the burning isn't impressive.
But I build it for my wavelength collection.
 
Sorry for posting here, I only saw the post's date just above me! Happy new year!
 
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