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Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > 445nm Lasers



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Old 03-13-2011, 11:45 PM #1
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Default new 1w 445nm altoids laser

i just got done making these today the red one is for sale and the od green one is mine they work great they burn everything in sight even your right eye opps dont make them when your half asleep where your laser glasses i still need to get mine
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Last edited by snowflake; 03-14-2011 at 01:02 AM.
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Old 03-13-2011, 11:49 PM #2
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Default Re: new 1w 445nm altoids laser

um.. what?

the text part of your post didn't make much sence.. care to give more details about your build?

Last edited by GBD; 03-13-2011 at 11:52 PM.
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Old 03-14-2011, 12:06 AM #3
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Default Re: new 1w 445nm altoids laser

sorry im half asleep and i think i have some laser damage in my eye not good. the green one has a cooling fan from a laptop. the driver i made, it was for a 405nm diode i had but broke so the only thing good i did was to keep the driver schematic which drives up to 1 amp so i cant brake the diode now because its 2w.if u want the schematics for driver ill send it to anyone that wants it





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Last edited by snowflake; 03-14-2011 at 12:09 AM.
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Old 03-14-2011, 12:11 AM #4
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Default Re: new 1w 445nm altoids laser

Yeah, that looked to me like the typical linear driver (with the IC hidden under that clip I guess) also, if your driving the diode @ 1A, that doesn't mean you are outputing 2W.. no where near it. (1A gives around 900mW-1W, IIRC 1.7A-1.8A gives around 2W)

Also, how did you manage to get eye damage? where you not using the proper goggles and were shinning it into your eyes?
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Old 03-14-2011, 12:25 AM #5
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Default Re: new 1w 445nm altoids laser

last night i was finishing the red one and it wasent turning on so i look into it and it turns on and i dont have safety glasses for it. it might go away i hope and i no that its running at 1w because of the driver but that means i cant overpower it thats wht i want. thats how all my other diodes died i like your blue laser you made did you make the host
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Old 03-14-2011, 12:34 AM #6
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Default Re: new 1w 445nm altoids laser

Quote:
Originally Posted by snowflake View Post
last night i was finishing the red one and it wasent turning on so i look into it and it turns on and i dont have safety glasses for it. it might go away i hope and i no that its running at 1w because of the driver but that means i cant overpower it thats wht i want. thats how all my other diodes died i like your blue laser you made did you make the host
First off, go see an eye doctor as soon as possible. after that invest in laser safety goggles for 650nm and 445nm.
its your vision, and once you lose it you never get it back. from what you describe you probably did cause some damage, but dont rely on my post for a medical diagnosis. GO SEE A REAL DOCTOR AND DO IT NOW!

about the blue laser, yes, machined the host at home.
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Old 03-18-2011, 02:30 AM #7
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Default Re: new 1w 445nm altoids laser

my eye is getting beter
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Old 03-18-2011, 05:24 AM #8
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Default Re: new 1w 445nm altoids laser

With all that extra room you could add some more heatsinking material, and use a dual driver set up for a 2W Set-up...Esp on the one with a Fan.
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Old 03-19-2011, 07:20 PM #9
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Default Re: new 1w 445nm altoids laser

i plan on making a copper heatsink for them and if anyone can help me modify my driver to push out 1.5a that would be sweet


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Old 03-20-2011, 02:40 PM #10
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Default Re: new 1w 445nm altoids laser

That should be good enough. Just make sure the pot is large, the resistor is rated for 2W, and the lm317 has a big heat sink
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