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Old 01-13-2009, 12:16 AM #1
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Default Highest power scavenge diode

I'm looking into building a laser x/y plotter of my very own while hoping to spend as little money as possible, this is why i'm looking to use a diode from a dvd writer or similar rather then buying a high quality lab laser.

Idealy it'll be something like http://uk.youtube.com/watch?v=8rWXesRncL8
But using a diode with powers like http://uk.youtube.com/watch?v=B2mEpnogUMI (by the same guy as the above)

That second vid looks like the long, open can i've heard about but never used, would one of those be able to hit the powers indicated in the video and if so where can i get one
Or, would a IR diode from a cd writer or other source be more powerful? If given the choice i'd prefer a visible light to make focusing easier and safer (with proper goggles)

It will eventually be mounted in a custom alu heatsink so diode size isn't an issue as i hear there are 2 diode sizes with the smaller one being the common one, but if the larger size has more power without a hike in price could it be worth looking for?


In addition, does anyone know where to get some good quality coloured filter sheets to block the IR/Red light like the goggles? I'm thinking it'll be worth making a shield around the laser and target area so i don't have to worry about flare or reflections while it's active.


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Old 01-13-2009, 12:54 AM #2
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Default Re: Highest power scavenge diode

You can get a 16X Red from Senkat in his store IIRC...
I think that diode can be driven at 250mW or even higher...

This is a link to his store for the Sony SLD1239JL-54 16X DVD Burner OEM Diode.... http://stonetek.org/shop/


Here is some info on the LPC-815 Red that Milos had tested...

360mA = 220mW
390mA = 235mW
420mA = 250mW
435mA = 265mW
460mA = 275mW- 280mW

You could ask for the LPC-815 here...http://www.laserpointerforums.com/fo...m=1231270367/0


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Old 01-13-2009, 10:47 AM #3
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Default Re: Highest power scavenge diode

I've got a couple of those sony diodes from Senkat already bright, but not bright enough, this is why i'm aiming for the 400-500mW mark.

The C-Mount diodes at http://www.cnilaser.com/diode_laser.htm look like the sort of thing i'm after power wise, but i'm guessing the prices will be alot more then your normal diode.
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