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Old 12-12-2011, 11:30 AM   #1
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Default Pictures of a 780nm laser build

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


Flexdrive and Jib driver to compare the original driver.


Plenty of room to use the LM317 ic. It was place on a sticky heatpad.


The burn mark from the short-circuit is still there.


Ready to lase


A tiny red spot burning the paper. A very small smoke is seen


I hope you like it and be carefull with the invisible 780nm laser.
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Old 12-12-2011, 01:27 PM   #2
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Default Re: Pictures of a 780nm laser build

Yeah cool wanna buy a nice host with lens assebely ?


<--- click for big
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Last edited by weeba2kv; 12-12-2011 at 01:55 PM.
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Old 12-12-2011, 04:14 PM   #3
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Default Re: Pictures of a 780nm laser build

No thanks, I will stick with my C6 host
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Old 12-12-2011, 10:45 PM   #4
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Default Re: Pictures of a 780nm laser build

Quote:
Originally Posted by weeba2kv View Post
Yeah cool wanna buy a nice host with lens assebely ?


<--- click for big
making your self seem desperate to sell that host lol.
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Old 12-13-2011, 03:32 AM   #5
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Default Re: Pictures of a 780nm laser build

It's just for sell
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400mw 532nm < dead
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200mw 650nm < gave it away
1mw 632.8 nm HeNe
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COHERENT INNOVA 90-5 GOD's power
MELLES GRIOT HeNe 75 mW max , 632.8 nm ( 38 mW )
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Old 12-31-2012, 03:11 PM   #6
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Default Re: Pictures of a 780nm laser build

Wow, nice laser! It's invisible, which makes it so much cooler. ^.^
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Old 12-31-2012, 04:16 PM   #7
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Default Re: Pictures of a 780nm laser build

How much power does it have? Nice (semi-)build!
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Old 12-31-2012, 10:51 PM   #8
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Default Re: Pictures of a 780nm laser build

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.
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638nm 175mW Ehgemus, 1W Rook
660nm 1216mW Skylaser PL660, 263mW LPC826 C6
685nm 33mW Fujitsu FLD6A2TK C6
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Old 01-01-2013, 06:26 AM   #9
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Default Re: Pictures of a 780nm laser build

Sorry for posting here, I only saw the post's date just above me! Happy new year!
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Old 01-06-2013, 01:37 PM   #10
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Default Re: Pictures of a 780nm laser build

Interesting build Blord. Just another to add to the list aye!
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Old 01-11-2013, 05:47 AM   #11
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Default Re: Pictures of a 780nm laser build

get some night vision on it!
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Old 01-12-2013, 04:59 PM   #12
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Default Re: Pictures of a 780nm laser build

nice laser!
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