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Old 10-20-2014, 05:25 AM #1
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Default First Build advice

Hello all!

I've been interested in lasers for quite some time, and feel I know more about them than the lay person, but alas, I know nowhere near enough to start my first build without some assistance on parts and what it will take to complete my project, so I'm looking for some insight into what drivers, diodes, and other such Items I'll need to build my first pointer.

So, lets start off with what I would like to build, I want to build a rugged keychain laser that I can carry with me wherever I go. Ive got the host picked out, DQG SPY 10180 Titanium Alloy Flashlight with Trit_DQG Flashlight_Electronics Wholesale - Powered by ECShop it fits a little 10180 3.7v battery. I'd like to throw a red (or green if the diode is small enough) in and push somewhere from 15-50mW (15 for green, 30 for red preferably) out of it, something noticeably brighter than your average $5 laser pointer, but not something that would be much of a risk to eyes. I know that the battery life will be pretty short, but I'm ok with that.

Now, my questions start, this is where I'll need help. I'll need a diode, a driver, and a heat sync. The driver will have to be pretty small, not sure of the exact internal dimensions of the light. And I'll need a diode. These I'm assuming will be the easy part. But the heat sync may not be so easy since the host is so small. Will I need to get something custom made? If so, who would I go about asking around the forum to commission such a part?

Thanks for any help guys! I really appreciate it!


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Old 10-20-2014, 03:04 PM #2
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Default Re: First Build advice

The forum member DTR may be able to help you with the diode part :-)

https://sites.google.com/site/dtrlpf/home is the website where he sells them.
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1 watt 445nm Blue WaterProof Laser with Lanyard,Case and Blue Glowring

Last edited by XD001; 10-20-2014 at 03:05 PM.
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Old 10-20-2014, 07:35 PM #3
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Default Re: First Build advice

Those 520nm diodes look nice. Can I pump only 20mW with this diode? https://sites.google.com/site/dtrlpf...nm-laser-diode
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Old 10-20-2014, 07:46 PM #4
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Default Re: First Build advice

Quote:
Originally Posted by ZEOXEO View Post
Those 520nm diodes look nice. Can I pump only 20mW with this diode? https://sites.google.com/site/dtrlpf...nm-laser-diode
Sorry I honestly don't know.. I am just building my first laser now, I pulled the red wire out of the module.. So I sent it back to DTR, he fixed it, the driver broke, so total repair cost was only $27+$3 priority shipping.. Anyways, yeah I just started my first build, too but ask DTR he will most likely be able to help you best.
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Lasers that I currently own/or am getting:

Have:
digi-accessary: Red Laser Pen Pointer Beam Light 5mw 650nm
grindlogic: Military Grade Adjustable Zoom GREEN Beam Laser Pointer Pen Kit
Wicked Lasers: Nano Purple 75mW
Sci-Fi Lasers: SF501B 445nm Blue 1.3W-1.8W
1 watt 445nm Blue WaterProof Laser with Lanyard,Case and Blue Glowring
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Old 10-20-2014, 09:01 PM #5
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Default Re: First Build advice

Quote:
Originally Posted by ZEOXEO View Post
Those 520nm diodes look nice. Can I pump only 20mW with this diode? https://sites.google.com/site/dtrlpf...nm-laser-diode
That diode is rated for 50mW, but can be pushed to ~100mW. My build with it topped out at 102mW. Not sure what the laseing threshold is, so not sure if you can drive it under 50mW.

These green diodes heat up alot though, so you won't have a long duty cycle in that tiny host.
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405nm SkyLaser PL 300-500 - ~500mW (523mW);| SkyLaser LP 5-80 - 5mW
405nm SkyRay 12X S06J w/450mA microboost - 485mW :|: BDR-209 16X w/700mA microboost 2X in ZeroLasers SkyRay and Chunk hosts
445nm ZeroLaser 2x18650 host 9mm w/2.3A X-drive - 2.8W :|: Trustfire A8 9mm w/2.4A X-drive - "The Sentinel" ~3W
445nm JetLasers PL-E - ~1.25W (1.32W) :|: 445nm 9mm w/2.4A X-drive Kryton "the Terminator" :|: Blord 501B build - 2.1W
450nm Osram PLTB450 in SL S4 host - 1.48W :|: 450nm Osram PL450B with ~280mA microboost in C6 host - 235mWBuild here
462nm 9mm diode in ZeroLasers chunk w/1.8A X-drive :|: M462 in sinner Cypreus-II w/microboost
473nm CNI lab 40mW
520nm NDG700 @1.8A in Cypreus-IIb - 1.04W :|: PL520 w/300mA x-boost in S4 host - 102mW Build here
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650nm copper module in C6 host - ~300mW (230mW) Build here
650nm module in custom host - ~300mW (224mW) "LiL Red Eye" Build Here

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Last edited by ChaosLord; 10-20-2014 at 09:05 PM.
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