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Beam Expander

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Anyone know where i can get a beam expander to fit a regular style laser pen/pointer? Like the same fitting/thread those novelty pattern attachments have.

FS: sold

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Hi guys,
Few more parts i've put together for sale:

1x Osram PLTB450B 1.6W 450nm Diode pressed into a 12mm Copper module with 22AWG silicone wire leads attached
$30usd - no lens
$40usd - 405-G-1 Lens.




1x Oclaro HL63193 700mW 638nm Diode pressed into a 12mm Copper module with 22AWG silicone wire leads attached (small crack in diode window edge, doesn't effect operation)
$25usd - no lens
$30usd - 3-element 638nm Lens



1x 3A TestLoad kit (included all items for the Testload, needs soldering)
$8usd



Shipping per Purchase/Package: $7usd, tracked international from Germany.
Paypal only

Offer!! Will sell all together for $70usd + postage with international tracking

Cheers :beer:

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Thoughts on my design

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Hello All,

I am an engineer and my goal is to make custom compact laser housings that can support strong diodes (1 watt for now)

Here is a design based on a CR2 battery, let me know your thoughts!?

It will be able to support any diode as long as the driver is small (15 x10mm)

I know there are many custom builders on this forum that already do a great job... but my goal is to design housings made for lasers from the get go.

Let me know your thoughts!? And yes I have done the calculations, the copper and aluminum heat sinks will provide good run times and it can except the standard copper diode housing (11x11.95mm 9mm lens)

I put a lot of thought and work into this puppy!

It is 65x20mm! Keychain

I ask that no one steals my design, as I am hoping to produce it and sell it for an affordable price to forum members; and give several away in exchange for improvements/ reviews. I don't think this would happen, but please respect my intellectual property.

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Laser Hosts Copper Color

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Finally, we have reached a turning point in the field of the hosts laser ,

I made a test with my laser modules and the single pointer 2W-445nm ....!
I found the suitable material that has a heat resistance up to 350°C ,the famous PETG which is also mentioned in a post ArcticDude ...! Now, for some good soul and willing I should let you know such data : 6W+ (max Peak 7.2) temperature reaches ? leaving it switched on for 4 minutes ! Once known, the real temperature will I start to print something for "proof" .

Let me know if you want to

10280 battery charger review

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Hi, I got a request to do a review on a 10280 battery charger I had made for me by a member. It's a custom build made from a button cell charger. The lights on the front blink blue as it's charging, than turn green when the battery fully charged. Like the way the builder used two small magnets to hold the ends to the battery when it's being charged, makes it real simple to use the charger. Also like the little holder for the magnets when not in use. I use it for two of my builds that take the 10280. A key chain mini build kit from Jayrob that takes one 10280 http://laserpointerforums.com/f39/fs...ery-42564.html and one built by BlackOps that take two 10280's http://laserpointerforums.com/f52/work-art-100184.html It's a small charger but it seem to work just fine and do a great job, had it for about a year and no problems :)















Hope you enjoy the small review. :)

Ps, if anyone has any small builds like this, they'd be willing to sell, shoot me a PM and see if we can work something out. thanks :)

Single-photon 3D imaging reaches 10 km range

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"As the need for more compact, lightweight, covert imaging methods expands for airborne and other portable platforms, single-photon-based time-of-flight (TOF) or light detection and ranging (lidar) imaging systems are gaining in popularity because their high sensitivity allows the use of smaller, lower-power laser systems. Rather than using several-tens-of-milliwatt visible laser sources, silicon single-photon avalanche diode (SPAD) detectors, and pixel-by-pixel readout (pixel-wise) image-processing algorithms, researchers from Leonardo MW and Heriot-Watt University (both in Edinburgh, Scotland) have instead developed a single-photon imaging lidar system that improves on an earlier single-pixel design and uses a 10 mW eye-safe 1550 nm laser, indium gallium arsenide/indium phosphide (InGaAs/InP) SPAD detector, and algorithms specially designed for time-correlated single-photon counting (TCSPC) to image at ranges up to 10.5 km."
From: http://www.laserfocusworld.com/artic...99&bid=1798959

See also for background on this development:
https://www.osapublishing.org/oe/abs...i=oe-21-7-8904
and
2013, 1km single photon imaging: http://www.laserfocusworld.com/artic...aging-1km.html
and
http://www.laserfocusworld.com/artic...d-ir-phot.html

Laser dependent technlogy Research, Development, Test, & Evaluation marches forward making technological feats thought to be impossible--possible. The rapid technological progress in the field of lasers and related laser applications never cease to surprise and amaze.

FS: 476nm & 505nm New Diodes

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Hi guys,
Got a few of the 476nm&505nm diode examples needing new homes :beer:

I have 3x ~476nm 50mW Diodes available:
#1 - 476nm Diode $45 usd [reserved]
#2 - 476nm Diode $45 usd
#3 - 476nm Diode $45 usd


And 3x 505nm 30mW Diodes available:
#1 - 505nm Diode $30 usd
#2 - 505nm Diode $30 usd
#3 - 505nm Diode $30 usd


-Payment: Paypal (PM for address)
-Postage: +$7usd (Deutsch Post, Standard International Brief with tracking (8-10days)
-Diodes: Brand new
-Will send within 1 day of Payment

Theres a few of these Diodes floating around now so hoping everyone can get one soon. Looking forward to see some finished builds :beer:

Cheers





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TESTING RGB MODULE WITH NUBM07E 465nm

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Hi!
Just want to share a colour rendering test for a single NUBM07E 'fighting' against two 'mits' ML501P73 and two NDG7475 520nm, all cyl correction.

07E is 'double CV cyl' corrected to get below 1mrad into minimal footprint. If set to max diode is capable to deliver up to 4W for a 8W RGB (2W red, 2W green, 4W blue).
However below test is performed at 2,5W on 465nm to get a better 'white'...so this is a 6,5W RGB very well colour balanced. <5mm beam 0.9mrad full angle.
NUBM07 despite its divergence performs really great in laser PJs (if well corrected)
Love this wavelength, module is INSANELY BRIGHT!!!

https://www.youtube.com/watch?v=xJ6qZuMKWs0

New abstract show "Take It" by Kongos

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I found this music during a late night music search on Youtube. My ears picked up at the driving beat and musical style changes and then... a singing gorilla. It had to be done. This was a fun one. Fast and dazzling with big expressive abstracts. I wanted to fill the screen with as much light and motion as possible. I wanted your eyes to say: “what did you just put in me?” and then blink and say: “more please”. I learned some new tricks on this one. Good tricks that melt your eyes.

made with LSX, and etherdream dac, and my homemade projector.


N450 Build, second times a charm.

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After my first crash and burn on making a N450 build. Waited for the wounds to heal, and had to take another crack at it. Well this time I got Photons, and lots of them. I'm using a3 element lens and the dot is surprisingly small. Think this diode is a winner!

There were a couple of thing new to this build in comparison to my previous lux-pro builds. I used a bb6 on this one which not qiute as tall as the sxd drivers. Which meant I could reuse the O-nut that held the contact board in. Made it a little cleaner of a build. Also had to use some double-sided Thermal Conductive tape to hold the driver in. I also used the tape as a padding/buffer between the bottom of the contact board and the top of the driver just to make sure nothing was going to touch something it shouldn't. To be on the safe side I tested the driver twice during this build. Once after I finished the pill and just before I soldered the diode on. Didn't want to take any chances. Over 4.7 watts at 4.0 amps not to shabby at all. Hopefully the pictures are pretty much in order so you get an idea of the step by step. Without further ado it's picture time! :)





















































































I'll try to get some night time beams shots when the coast is clear. Hope you enjoy the pics. :)


Ps; I updated the pictures, their a weeee bit clearer. :)

Over a 1 Watt Sanwu Pocket

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Just got this 445 Sanwu Pocket in. They generally come in at 500mw's but I asked them to push what could be pushed. They said they could probably get 800-900mw's out of one. So I said "I'm your huckleberry" go for it and let's see what happens. Well they did above and beyond the call of duty. Came in at 1064.308mw's, not to bad at all out of one 10440 battery. So I be one happy camper. And a big shout out to Sanwu for a job well done. :drool:










I wanted to throw this quick little review up. Hope you enjoy it. :)

Xtar VC2 plus master charger

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Just bought this new charger and have some new 18650 batteries. The intelligent charger has 0.5A and 1A modes and will automatically select the best charging rate so if you insert a smaller low cap an a high cap battery it will auto select 0.5 and you cant change it. But with high cap (3400) 18650 the charger should be able to use 1A. These new batteries can only be charged at 0.5 and when try to move to 1A it reverts back to 0.5. One was 12% and other 24% I think. So my question. Is this this because they are new batteries or because they are very low or both. ( I put in my 18650 2100 mAh at 74% and i could choose 1A) Also Im using a usb plug in the mains and even with one new battery it still uses 0.5. Any advice? :thinking:

HELP ME! 505nm Build request!

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Hey guys,

I've seen those new 505nm diodes popping up everywhere and $37 for just a diode dosen't sound too bad at all. I do have a request though:

1) Can anyone on the forums help build a laser pointer for me with this diode? Im not aware of how much current it takes etc... but don't really would like this diode pushed for more power honestly. If you could get it to run at what's it's rated that would perfect! :)

2) When it comes to a host, I was thinking of using an eBay pen and just slapping the diode in there, or any other advice you guys might recommend? $30 for 505 is too good to pass up! :)

Thanks!

Sanwu Pocket Laser 445nm 500mw help with acceptable battery dimensions

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Hello laser-loving people,

I just recently purchased a Sanwu Pocket Laser which takes a single 10440 battery. I am trying to find which batteries would work best with this laser.

There's a 4-pack of TrustFire 10440 batteries for about $26 CAD, but many of the reviews claim that the batteries are too long for some devices as they are 46mm in length. Would these batteries fit? This deal seems good because it comes with more batteries which would be convenient as the capacity is pretty low on 10440's.

Then there's also a 2-pack of PkCell 10440 batteries for about $10, these batteries seem to have the right dimensions at 44mm, but there are fewer reviews to rely on to determine the batteries reliability. This deal seems good because it's at least going to for sure fit as far as I know.

Any advice and help would be greatly appreciated as I'm trying to order these batteries so they can arrive at the same time as my laser. Just really trying to figure out if the 46mm's will fit.


2-pack

https://www.amazon.ca/350MAH-10440-L...keywords=10440

4-pack

https://www.amazon.ca/TrustFire-Rech...keywords=10440

Driver for PLT5 510

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Hello, I'm building my first laser. I need it to have an output of 510-518nm to work with my 520nm edge filter (for Raman spectrometer). The diode I'm using is Osram PLT5 510 B2.

It has 5.4 - 7.0v operating voltage and 60 - 100 mA (30 - 60 mA threshold) current. Power will come preferably from 5V DC. I read that diodes increase their output frequency at higher power, so I don't want to overdrive it.

What would be a good driver for this diode? I have one of these Chinese drivers (DC 3-5V 650nm 532nm 780nm 808nm 980nm Laser Diode LD Drive Driver Current Adjus | eBay ) but I'm not sure if it will work.

Photobucket just deleted;

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Sorry guys;

But Photobucket just went through and deleted all my photos, from every post! Don't know what to do? :yabbmad:

Too many to go back through all my posts with pictures in them and re-post.

So I'll send EP a message and see?

They say they wont re-post them, unless I sign up for a year service at 399.00. :crackup:

Will this work? DIY TTL driver for BDR-209

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For the cnc laser engraver that I have been wanting to build for a while, I wanted to build my own driver rather than buying one just so I could get more experience and understanding of the inner workings of laser drivers. I like BionicBadger's design from this thread http://laserpointerforums.com/f51/si...pwm-70812.html
because of its high efficiency, versatility, and TTL compatibility. The only issue is that I am going to be using a 12v power supply, which is needed for the stepper motors on the machine but is too much for the BDR-209 diode. Would it be possible to use a differential amplifier to reduce the 12v down to about 8v and then use the mosfet driver to regulate current? This scenario is different from handheld lasers with 3.7v batteries, so it could raise some new questions. :thinking:

Sanwu Pocket 650nm

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Hey everyone!

Guess who's back, back again? :yh: Well I meant to post sooner but life has been very busy lately. My apologies.

I spoke to Podo a while ago, he gave great advice, and I subsequently ordered a Sanwu Pocket 650nm running at 250mW with a G2 lens at a very fair price with an LPF discount... it turned up. I tried it...






Suffice to say it was fantastic. I've not looked back, and have been having lots of fun with it. I can truthfully say the machining quality is superb. Tolerances are great. It is a lovely little laser. I'll have to review it properly, but for now at least I've uploaded a couple of pictures while I poke my head in and say hello again :beer:

--All Sold---~476nm & ~505nm New Diodes

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Hi guys,
Got a few of the ~476nm&~505nm diode examples needing new homes :beer:

I have 3x ~476nm 50mW Diodes available:
#1 - ~476nm Diode $45 usd --sold
#2 - ~476nm Diode $45 usd--sold
#3 - ~476nm Diode $45 usd--sold


And 3x ~505nm 30mW Diodes available:
#1 - ~505nm Diode $30 usd --sold
#2 - ~505nm Diode $30 usd --sold
#3 - ~505nm Diode $30 usd --sold


-Payment: Paypal (PM for address)
-Postage: +$7usd (Deutsch Post, Standard International Brief with tracking (8-10days)
-Diodes: Brand new, not tested
-Will send within 1 day of Payment

Theres a few of these Diodes floating around now so hoping everyone can get one soon. Looking forward to see some finished builds :beer:

Cheers





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Happy Canada Day!

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To the Canadians on LPF, hope you're enjoying our 150th! :bday:
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