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PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please sub

Someone is making micro LEP's , very cool.

 
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Thinking about grabbing some toys from China before prices go up, how cool is this moving head laser show ?


Here's an even bigger unit, very cool.

 
These little guys are pretty cool. All three of the ones I bought have three live diodes. Red looks like 635. Green looks 520ish. And the blue looks like 455 or 460 to me. Threshold as follows B=16mA, G=36mA, R=67mA. Combined beam is collimated to a hair fine waist about 6 inches or so in front of the module. Picture at the bottom is the spot on the wall about a meter away. None of the diodes is in fold-back @ 125mA, and total output at that drive is in excess of 100mW. At $2 a pop I may get a few more of these. :)


EDIT: A bit more poking around and it seems these are the light engines of ShowWX projectors. If you can figure out how to drive it, the galvo should be fast enough for at least 720P video. I went back today and got another 50 :-)




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These might be fun. My local surplus shop has a bin of these teeny RGB heads. Three diodes, (with external beam power monitor diodes), collimation lenses, beam combining optics, and a teeny little two axis galvo. Not a bad deal for $2.00 a pop!

I'm told they were originally for some type of VR display.

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I grabbed a few of these as well... So far, the first two I've tested have extremely weak Red diodes so I'm unable to attain white. However, the Green and Blue diodes are good and bright. I hope they aren't all like that.
 
I grabbed a few of these as well... So far, the first two I've tested have extremely weak Red diodes so I'm unable to attain white. However, the Green and Blue diodes are good and bright. I hope they aren't all like that.
How much current have you tried feeding the red diodes? So far all the ones I've tested look good. The red seems to be uniformly misaligned with the green and blue across the ones I've checked. Not sure if that's a bug or a feature.
 
How much current have you tried feeding the red diodes? So far all the ones I've tested look good. The red seems to be uniformly misaligned with the green and blue across the ones I've checked. Not sure if that's a bug or a feature.
I started around 100mA. The red diodes seem to work but they're just very dim. I'll probably test some more today and see what I come up with. There's gotta be a reason why this many modules suddenly became available and this might be it. Mixing the blue and green still makes some pretty neat blue/green colors though. I might try running the beam through a couple of lenses to try to clip off the all the splash and clean up the beam. Soldering wires to those short little leads is fun. I might just try scraping off the covering on the ribbon cable on the other ones.
 


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