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520nm laser color






Yes, it is actually one of my many green laser pointers!
I took the picture with my own mobile smartphone.

I would never post threads like these if the laser itself is not mine ;)
 
Night Lase said:
You have more than one then, what power does the one in the photo have? It only says how many nm it is.
Click to expand...
The power is 500mW of the 520nm.

I have actually planned to buy a laser power meter sooner or later.
That means that I will know real output of my lasers and even post more awesome content on LPF!
 
My first build pointer build is going to be green after testing of the diodes, originally had planned to do blue, which still looks good, but green just looks so much brighter with less power.
 
LightSourceBlue said:
My first build pointer build is going to be green after testing of the diodes, originally had planned to do blue, which still looks good, but green just looks so much brighter with less power.
Click to expand...

Yeah, I mean green is definitely brighter than blue mW to mW.
Choose 520 nm since it's absolutely stunning 💯.
What kind of host will it be for your laser build?
 
I've got a Convoy M21F in frosted white, and a make shift heatsink. Final piece is figuring out which LD to go with, I got a few, but none seem like exactly the right option.

1000136779.jpg

1000136780.jpg
 
Coollaseruser said:
When will you build your green laser or finish building it?
Don't forget to later post a thread about your new laser build ;)
Click to expand...

I just bought a lathe, so thinking to wait till that arrives to do a proper heatsink. I can modify my heatsink before that to fit with the cheap mini rotary tool I have - but it's not great. And I still need to figure out the driver bit, I bought the drivers on Taobao (like Amazon but in Chinese) - and I'm not having a lot of luck getting the details I need for the drivers so I can use them.

Definitely will post when I have it completed
 
Coollaseruser said:
Yeah, I mean green is definitely brighter than blue mW to mW.
Choose 520 nm since it's absolutely stunning 💯.
What kind of host will it be for your laser build?
Click to expand...
Look at the new post about the nm to nm brightness calculator comparison.
Alien Laser posted the new link.. It take roughly 900% more power for a blue 445nm to equal the brightness of a 532nm green.
 
Last edited by a moderator:
LightSourceBlue said:
I just bought a lathe, so thinking to wait till that arrives to do a proper heatsink. I can modify my heatsink before that to fit with the cheap mini rotary tool I have - but it's not great. And I still need to figure out the driver bit, I bought the drivers on Taobao (like Amazon but in Chinese) - and I'm not having a lot of luck getting the details I need for the drivers so I can use them.

Definitely will post when I have it completed
Click to expand...
Great, I am looking forward to your build when it will be completed (y)
Hopefully you won't need to wait for too long to finish it :)
 
GSS said:
Look at the new post about the nm to nm brightness calculator comparison.
Alien Laser posted the new link.. It take roughly 90% more power for a blue 445nm to equal the brightness of a 532nm green.
Click to expand...

Just found this, really useful. The 1.6w green is equivalent to something like 20w of 445nm blue. Originally I was going to do a NUBM44 445nm as first custom build - but definitely the right move going to the lower power and higher brightness NUGM06!
 
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