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Attention Laser Designers!

G

giamonji

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Jun 8, 2011
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Hello everyone!

I'm interested in purchasing large quantities of atleast 2W laser pointers that are FDA compliant.
(If you are not aware of these laws I will provide them for you. Perhaps a custom build would be appropriate.)

I have this in the 445nm forum because, as I am aware, these are the only diodes capable of such power in a laser pointer.

Message me if you are interested in doing business.
 





you will need lots of cooling at 2W
so you will probably only find BIG hosts..
 
running the diodes to produce 2W is insane. the diodes willl have a super short life and you will have miserable customers. you should settle somewhere between 1-1.5W out put. still over driving but safer for LD. also to it won't be cheap, you will need good drivers, and good lens. What quantities are you thinking of?

michael.
 
well there are very few of us that can produce them at those power.
But it can be done. i would love for you to post those laws you have that you want the lasers to comply with.
I still have over 35+ 445nm diodes left along with around 10 hosts that are big enough to cool down a diode running at that power.
The driver i use is very new it has a feature very rarely seen to most, it has a slope as it turns on.
What that means is for the first .025 or so of a second it is slowly building up to its max current, this will extend a laser diodes life very much as normal drivers just blast it right up to full power.
lasersgroup.jpg

Image44.jpg

These have finned heat sinks to increase the surface area and allow air to flow threw the host cooling down the heat sink faster than an enclosed host.
 
Last edited:
chipdouglas said:
running the diodes to produce 2W is insane. the diodes willl have a super short life and you will have miserable customers. you should settle somewhere between 1-1.5W out put. still over driving but safer for LD. also to it won't be cheap, you will need good drivers, and good lens. What quantities are you thinking of?

michael.
Click to expand...

As far as I heard all 2W builds run just fine. What is the source of your information ?
 
2W builds are not very common due to the clicky switches rated for only 1.5 so running at 2w would blow out the switch and it takes multiple drivers to get to 2W and those are harder to build. Not to mention if you want any real duty time you need a large host.
And with most drivers not having a slope and just blasting the diode at its max power instantly, beyond what its rated for does not help.
Most 445nm lasers are rated 1.1-1.4 in power due to above limitations.
Also some power sources cant handle that type of discharge that fast, depending on power source quality.
 
kiyoukan said:
...edit...
i would love for you to post those laws you have that you want the lasers to comply with.
Click to expand...
Me too. :yh:
giamonji said:
(If you are not aware of these laws I will provide them for you. Perhaps a custom build would be appropriate.)
Click to expand...
Please provide them to us.
AFAIK:
Aperture shutter
Key-lock
3-second delay
Emission indicator light
Please let me know if there is something I am missing. :thinking:
 
^^^awesomelasers

@dr.sid i have read like 3 or 4 2W's that have gone bad. that is a lot considering there aren't many of them out there.

michael.
 
2W 445nm lasers with a single diode are a bad idea. If you go about it like DTR with the massive host, diode pressed heatsink, huge lithium battery, and 405-G-1 lens then you can get away with it but that is still pushing it. Ask him about his 2W builds. As far as I know he has done more of them than anyone else.
 
pushing 2W is something i have only done once and i found that the difference from 1.7 and 2w were not enough for me to care. why 2w?
why not stick with 1.5w last a long time and alot cheaper to make.
now i have a 3w (if you feel lucky and get 405-g1 lenses you may get up to 3.75W) version but your going to pay at least 500$ per unit for it.
yes this is a 2 diode laser made it in block form now just have to make it round to fit into the host.
thank god for rectangle beams turn one 90 and it makes the dot look better.
 
kiyoukan said:
now i have a 3w (if you feel lucky and get 405-g1 lenses you may get up to 3.75W) version but your going to pay at least 500$ per unit for it.
yes this is a 2 diode laser made it in block form now just have to make it round to fit into the host.
thank god for rectangle beams turn one 90 and it makes the dot look better.
Click to expand...

I've been lurking on this thread...

Can you please post pictures and videos of your 3W build?
 
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