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My >1W 520nm Handheld Build Video!

styropyro

styropyro

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So a while ago I finally lost my ability to resist buying the new 1W Nichia 520nm laser diode from DTR. For the build, I decided to go with a 2x 18650 host from Ehgemus and an X-drive to power the diode with. I can't quite remember what I ended up setting the current to, but my output is near 1.25W with a G2 lens so you can look at the PIV charts if you are curious enough. :D

I LOVE this build! The host was a perfect choice for this laser diode, as it is well heatsinked and can handle this power hungry and relatively inefficient laser diode. After I finished the laser, some things came up and I never got around to making a video until now.

As always, thanks for the great service DTR and Eghemus!!



http://www.youtube.com/watch?v=yFIvvcQeoc8
 





gozert

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Great to see a video of you again, it's been a while. You made yourself a very nice laser, definitely +rep worthy!

Is the divergence any good? I've been thinking about building a 1W 520nm since I dislike the divergence of my 445nm so much I'm not sure if I'll like this one.
 
BowtieGuy

BowtieGuy

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Very cool light saber you've got there styro, that 520nm certainly is beautiful! :beer:
 
styropyro

styropyro

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Thanks! I haven't done any official divergence measurements, but it's something on the order of our 445s. Single mode is always the way to go if you like a tight beam. :p
 
SteveT

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Awesome bit of kit there! Also interested in duty cycle? PS did you recite the hexamethyl equation from memory? ;)
 
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styropyro

styropyro

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Thanks! I try to run the laser at roughly 1 minute on/1minute off as it gets fairly warm. And yes I remembered the IUPAC name for the acetone peroxide trimer as that was one of my first organic chemical syntheses as a kid. :D
 
DTR

DTR

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Awesome video. Yea they do produce a lot of heat. Should be close to the heat of the 5W 445nm unit you built.:beer:
 
GR3EN

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1w of 520nm gets ridiculously hot ridiculously fast. I don't even run mine for more than 30sec at a time max. Very nice looking build there though. Probably one of my favorite wave lengths personally.
 
Alex2893

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wow iv waiting for this video lol. Amazingly bright. Im disappointed about the heat issue though. The m140 in my maglight runs super cool at 2w even after 9 minutes constant on which is pretty long.

I was actually thinking about a mag build with this 1w green diode as i wanted a long duty cycle. now im not so sure.

The good news is a just bought a white Arcane 2.0 462nm from the Joker. which is my favorite color. cant wait to get it.

Any plans on a video with the 462nm diodes? Im trying to find a good comparison of the m462 diode at 2w vs the m140 at 2w
 
styropyro

styropyro

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Thanks everyone!! :beer:
Alex2893 said:
wow iv waiting for this video lol. Amazingly bright. Im disappointed about the heat issue though. The m140 in my maglight runs super cool at 2w even after 9 minutes constant on which is pretty long.

I was actually thinking about a mag build with this 1w green diode as i wanted a long duty cycle. now im not so sure.

The good news is a just bought a white Arcane 2.0 462nm from the Joker. which is my favorite color. cant wait to get it.

Any plans on a video with the 462nm diodes? Im trying to find a good comparison of the m462 diode at 2w vs the m140 at 2w
Click to expand...

I actually built a 462nm laser using the 9mm laser diodes but never made a video. I might put something together though!
 
Robert S

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Wow, that thing is bright, really like your videos, you should upload more often. :D +rep
 
Ehgemus

Ehgemus

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That is so bright, I'd love to see one in person.

Great video as always.
 
Alaskan

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Nice, can you take some close up photographs of the host so we can see it better? Thanks :)
 
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