Beam splitter/combiner cubes for 14w of 450nm

February 6, 2016, 6:19 am

≫ Next: Flight tracker for checking flight paths?

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I have been looking and maybe I should put this under wanted to buy?

Is anyone aware of a 10mm x 10mm x 10mm or larger splitter/combiner cube capable of holding up combining 2 NUBM44's both beam corrected via cylindrical optics?

I may not even use a wave plate, the beam shape plus wont be all that misshapen, I just need one that's 10mm cube that will take 14 watts in the smallest area no less than 5/16 x 3/16 inches.

I'm hoping someone has already done this and knows of a good cube with low loss that won't fail.

If this is in the wrong thread I will move it, thanks.




PBS Blue - Opt Lasers




This should handle it no problem. Right?
Am I reading this right, will this take a 1000 watts per square cm?

So 15 watts is no problem Right??

Anyone?

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Flight tracker for checking flight paths?

February 6, 2016, 11:57 am

≫ Next: DIY 445nm laser engraver

≪ Previous: Beam splitter/combiner cubes for 14w of 450nm

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Is there any good flight tracker out there that would enable me to be more aware of flights overhead at night.
I can ask Siri what planes are over head, but I can do a better job just looking in the sky to see that.
I think it would be very beneficial to us laser users to have an accurate real time map of flight paths. I've seen apps that claim to do this before, most of the time are $$ and probably don't do as described.
Anyone care to drop there 2¢ here?

DIY 445nm laser engraver

February 6, 2016, 12:37 pm

≫ Next: I want a 2w blue laser

≪ Previous: Flight tracker for checking flight paths?

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Hello everybody,
I've read a ton of threads on this forum while designing the laser engraver that I'm currently building. I decided to ask all your guys expertise on my 2W 445nm laser. I've made the typical laser driver with an LM317 and a 22uf capacitor. I have a raspberry pi 2 to use to switch the laser on and off. For some reason it finally clicked in my head that I wouldn't be able to switch the laser on and off fast like a laser engraver requires, due to a capacitor being in parallel with the laser. I always thought that the capacitor acted as a filter and more importantly made sure the power didn't look like a square wave, which I heard was way easier on the diode. I'm confused on how engravers are able to turn the diode on and off so fast to engrave pictures, and still maintain diode life.
Any help is greatly appreciated.
Thanks,
Riot

I want a 2w blue laser

February 6, 2016, 1:11 pm

≫ Next: An Experiment[w/pictures]

≪ Previous: DIY 445nm laser engraver

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Hi! I'm having trouble choosing a 2w blue laser. I'm debating to myself about buying DTR's M140 Module with the glass lens for $53 and buy a driver and host on Ebay (total ~$80). However, I realized that there are some good options of prebuilt ones out there. My budget is <$120 for just the laser. I was considering the 2w one on Lucklaser (some say it only reached a max of only 1.6w, but still seems like a good deal). Another option for me was to buy one from these forums. This seemed like a good solution as some members can customize hosts to your liking (I would love a long, metal host with some good weight that could fit 2x18650's). The only problem is that my rep is low. (I'm fine with paying first, if that's the problem) Ideally, I want a laser that can produce around 2w, with on/off button (so I don't have to keep the button pressed for the laser to stay on), in a host that can fit 2x18650's (the driver will take care of the excess voltage, right?) for less that $120 ($53 module + $10 driver leaves about $60 for the host). I'm not asking for a fancy host, just a long metal one, preferably with a large heatsink for the diode. I would greatly appreciate anyone who can help me out with my dilemma. Btw, I already bought OD4+ glasses, so please don't bug me about it.

An Experiment[w/pictures]

February 6, 2016, 1:49 pm

≫ Next: PLEASE HELP!! I have a laser I know nothing about

≪ Previous: I want a 2w blue laser

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So, I created this as a totally experimental laser from a flashlight/laser sitting around my house. I had just received my Kryton GITD host from Grainde, and wanted to mess around with it. This was a completely temporary build since I want to get a diode from DTR in the future.

There where some issues of course with it being from a flashlight and it didn't really fit correctly in the host, but I had to mess around with something.

Also, as a side note, I have no idea what wavelength or how much power this laser is but I'm assuming it's <5mW because it was store bought.

So here is the flashlight host - missing the back and top covers.


Here's the top of it with the plastic covering over the LEDs and Laser.


I removed the covering so that I would gain access to the LEDs and Laser. Then I took them out from the host.




This is the laser piece with some glue that was very easy to remove.




So now I have de-soldered all wires from the leads and the LEDs, now I'm going to remove the yellow wire that attached the LEDS to the Laser and replace it with the white wire.



Then I took the Kryton host with pre-installed leads and wrapped the wires together, so I didn't want this to be a permanent thing, really this was just an experiment for me to mess around with for a couple hours.


Here's a picture of the host, it's so nice I can't wait to get a really nice diode in there in the future.


Now it wasn't a perfect fit, actually it really didn't fit at all. the lens adjustment didn't do anything since there was no lens for it to fit on.




But...it somehow actually worked, I really didn't think it would since this is my first type of experiment like this, but I enjoyed it heres some pictures of the dot and beam.




Thanks for checking my experimental laser out, pretty proud of it since I've literally done nothing like this before!

PLEASE HELP!! I have a laser I know nothing about

February 6, 2016, 3:04 pm

≫ Next: Fried my new Sci fi laser...

≪ Previous: An Experiment[w/pictures]

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So I know absolutely nothing about lasers and i need some help. I have a laser from Cyonics a division of Uniphase. I have no idea of the price. The model number is 2213-75GLYW. Is it worth anything? Please let me know, I would really appreciate it.

Fried my new Sci fi laser...

February 6, 2016, 5:55 pm

≫ Next: Hello from San Diego.

≪ Previous: PLEASE HELP!! I have a laser I know nothing about

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So i got my awaited scifi 445 laser. 1.6w, opened it up, got my batteries, two 16340's and stuck them in the way id been used to doing with my arctic, positive to the butt.
screwed on the click cap, and gave it a click. *sizzle*
never even got to see her shine.... unaware of what id done at the time, i thought id inserted them correctly.
First thing i did was email joker, and he told me id fried the module.
Then i take a look at the website to see it written, Positive side first, clearly in several places.
Im ashamed of myself. Ive waited over a month to receive this laser and i couldn't wait a little longer to confirm the correct way to insert the batteries.

Joker is replacing my module, which i could not be more thankful for.
This was complete ignorance and user error, but out of the kindness of his heart he's helping me out!

Mistakes happen, but this was stupidity.

If joker is sending me a whole new module, does that mean that the diode and all is fried? is there a chance the diode is still functional and i could buy a driver myself in attempt to fix it?
I asked joker but i suppose he's signed off for the night.
He may be upset with me, Im sorry Eitan :cryyy:

Hello from San Diego.

February 6, 2016, 5:55 pm

≫ Next: Well Hello

≪ Previous: Fried my new Sci fi laser...

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Hello everyone my name is Aaron. I love to tinker with stuff and have way to many hobbies and as it appears I have just found another.

I do the desert/sand dunes thing and big into atv's and buggies. Very mechanical stuff. Also I vape and make my own fluid and that is how I stumbled upon DTR's 22mm adapter for mods.

Decided to start out and got some cheapie lasers and couldn't hold myself back from ordering a pre assembled 22mm adapter with 2w 445nm, g2 lens and all that. Seems like it would be easier to have one and then later on be able to pull a working laser apart and learn to build them possibly.
Have to put a shout out to DTR here as it was in my hand within 2 days of ordering which is blazing fast.

Also into flashlights and whatnot but have yet to mod anything really.

Going to attempt to add some pics but I'm on a phone so bear with me. The IMG tags seem way to long but if it works I'll post more after. Thanks for having me everyone =).






Edit; pics worked so I added a few more.

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Well Hello

February 6, 2016, 10:56 pm

≫ Next: DVD drive Grave and something else

≪ Previous: Hello from San Diego.

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Hi,

Not entierly new to the forums as you can see from my join date. I originally joined so I could use the search function to get info. Back when I first joined I was mainly into making some white lase. I was semi successful but my lasers were way to different in power to really get anything aside from an inch or so.

Fast forward to now... Now I'm sober and getting back into the hobby. Basically starting from nothing except for some of my optics I somehow managed to keep a hold of through out all the moves. I've got one red off ebay in an axiz mount and have an order with Joker for a blue and a little sticker shocked at the difference in price/mw withe the greens. But I think I'm gonna go after some of the not so off the shelf wavelengths.

DVD drive Grave and something else

February 7, 2016, 1:33 am

≫ Next: Hi from Australia

≪ Previous: Well Hello

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Doing a cleanup of my laser/electronics area of destruction and i snapped a pic of a heavy pile of old DVD drives who's diodes have since now been sacrificed :can:

Left out a few drives before i took the picture but by the end the box was a little more than 3/4 full


Oh and if only they still put these labels on Computer drives these days:
[I

Hi from Australia

February 7, 2016, 4:56 am

≫ Next: Host plus beam expanders?

≪ Previous: DVD drive Grave and something else

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Hi everyone, i'm Tassie from Australia i have just joined because i have bought the Thor 11 laser,bit pricey but well worth the money this baby will light a match at 4ft impressive bit of kit.
Joining this forum will answer a lot of questions that will eventually come up and as i can see from my brief look at it it will pay of.

As i have already learned its best to throw away the charging unit that came with it and buy another one, someone recommended the Nitecore i2 & i4
which i will end up buying, one quick question if you don't mind! could you please tell me how long i need to charge the batteries which are...
imr 16340 600mAh Thanks guys Cheers Tassie

Host plus beam expanders?

February 7, 2016, 6:45 am

≫ Next: NUBM44/Mag Light Mod

≪ Previous: Hi from Australia

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I have a couple 2W blue lasers and I'm thinking of making one with a beam expander. I've been using the survival laser S4 host. I also have one of the stainless hosts. But I'm not aware of any beam expander (5x or 10x) that work with these.

1) Is there a beam expander that will work with either of the Survival Laser hosts? Link?

2) If not, what is a good (available) host/expander combination? Link where I can purchase.

Thanks,
Mike

NUBM44/Mag Light Mod

February 7, 2016, 7:07 am

≫ Next: slow motion laser burning

≪ Previous: Host plus beam expanders?

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Hi Folks,

This is a Mag Light that i Modified The color is a Gun Metal finish With a huge Ed Crouse heat sink, much larger than Jayrobs sinks for the Mag light. OK in it is ;

1- NUBM44 diode = Jordan (DTR)
1-4.5A SXD Driver = Angelos (Lazeerer)
Lens G2= (AixiZ)
2-Fielong 32650/6000mAh cells.
It also has an insert to use 2-26650's cells.
Well hope you folks enjoy the build as much as i did building it. The worst part of building is when it's done, i just love to build these huge units.
Here are some pics to go with the build..

Rich:)

Attached Thumbnails

         

     

slow motion laser burning

February 7, 2016, 7:47 am

≫ Next: Single Mode Laser Diodes

≪ Previous: NUBM44/Mag Light Mod

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Hi all, just thought I would test the slow motion capabilities of my camera and what better excuse to pop and burn balloons with my laser haha. Hope you enjoy the video and please give it a thumbs up :)

Happy lasering.

Single Mode Laser Diodes

February 7, 2016, 1:25 pm

≫ Next: Howdy!

≪ Previous: slow motion laser burning

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Anyone have an example of a laser pointer they have made, that uses a single mode diode, to produce a circular spot.

Is it possible to make a handheld class 4 laser using a single mode diode?

What diode did you use?

I'm curious what the build might be like, since most here are using multi mode diodes.

Thanks,

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Howdy!

February 7, 2016, 3:13 pm

≫ Next: Ehgemus/dtr custom 1+w 520nm laser

≪ Previous: Single Mode Laser Diodes

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Thought I already posted here. Guess not.

I was directed here by two sources. DTR and Survival Laser.

I became interested in lasers, when I got into night vision. I have a long interest in firearms and weapons and recently got into night vision. I have, as part of my night vision, both green laser and IR laser.

I began looking into higher power IR lasers and found a limit on what I could get commercially. I currently have a 0.7mW IR laser. I wanted something much more powerful (Yeah, I know about the danger). I have safety glasses and understand the danger of working with IR. But hey, firearms are dangerous too. "Danger" has never bothered me. I always try to learn as much as I can, before I jump in.

So, I started with visible lasers. I have a blue 2W, and a green 700mW on the way, as well as a 500mW IR laser diode on the way.

After I become familiar with the process of assembling the parts, I will venture into the IR world.

BTW, I don't really have any use for IR other than it's part of Night Vision and I love taking photos and videos using NV. So, I get to blend several of my hobbies (Jeeping, firearms, and photography).

That's about it, other than having a wife of 48 years, who still doesn't understand why I spend $10K on cameras, $6 on Night Vision, $80K on Jeeps and $50K on firearm stuff. But I think most wives are like that.

PS: I have a degree in Electrical Engineering and have been a design engineer for over 40 years. I just find a good first place to start any project is to see what others have done. No use in reinventing the wheel, as it were.

Ehgemus/dtr custom 1+w 520nm laser

February 7, 2016, 4:24 pm

≫ Next: Where to find optical lens for 445nm 3.2W laser?

≪ Previous: Howdy!

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The Beast is here !!! This is not going to be a big fancy review. Iv been sick for awhile and dont have much energy. But this laser is such a beast i managed to take some nice photos and get a lpm graph.

A few days ago i received my custom 520nm laser from Ehgemus with DTR's completed laser module with the NDG4745 diode. I have always wanted a green laser over 1 watt and this thing does not disappoint.

The process went very smooth. Once Ehgemus received the laser module i have the laser in my hands less then a week later. I will be doing this much more often now.

20160207_181946 by Alex Littig, on Flickr
20160207_181933 by Alex Littig, on Flickr
20160207_181924 by Alex Littig, on Flickr
20160207_181959 by Alex Littig, on Flickr
20160207_182121 by Alex Littig, on Flickr
20160207_174237 by Alex Littig, on Flickr
20160207_174315 by Alex Littig, on Flickr
20160207_174337 by Alex Littig, on Flickr

(1400mw 520nm laser vs 227mw 520nm laser)
20160207_174433 by Alex Littig, on Flickr

227mw 520nm vs 350mw 532nm vs 1400mw 520nm
20160207_181243 by Alex Littig, on Flickr

(1400mw 470nm vs 227mw 520nm vs 1400mw 520nm)
20160207_181116 by Alex Littig, on Flickr

:eg::eg::eg::eg::eg:
dtr ehgemus laser lpm graph by Alex Littig, on Flickr


This laser is amazing in every way. The feel the momentary button has is super high quality and seams like it will be very durable. it also has a clicky in the back to activate the momentary side switch. I love this feature as it wont turn on when i don't want it to. Duty cycle should be pretty good. like 2-3 minutes. It was just barly warm after the lpm test. Overall this is the best laser iv ever owned. The beam is just insanely bright. Never seen anything quite like it. Divergence is not bad. Im using a g2 lens. It has about the same divergence as a m140 with g2 lens. I measured 950 mw with 3 element lens. but the beam looks much more impressive with the g2 lens.

Where to find optical lens for 445nm 3.2W laser?

February 7, 2016, 7:38 pm

≫ Next: Overboosted 5mw laser?

≪ Previous: Ehgemus/dtr custom 1+w 520nm laser

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Want to start off by saying I'm an idiot. I have a 3.2W 445nm laser I bought a couple years ago and decided to shine it outside around 10pm. While adjusting the focusing piece, I loosened it a bit too far and thus, it fell off. I have no idea where it is so I'm cutting my losses and hoping it's not too difficult to find another one. This piece is still connected, it's the piece that connects to that via spring that's missing. You can probably tell by my definitions that I'm no expert at this. Hopefully it's not too difficult to find. I've included a picture of the laser from a while back with the piece I need: Imgur: The most awesome images on the Internet

Overboosted 5mw laser?

February 7, 2016, 9:15 pm

≫ Next: When is it acceptable to not wear glasses indoors?

≪ Previous: Where to find optical lens for 445nm 3.2W laser?

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I just bought a cheapo greenie off ebay for $5 and it is rated at 5mW. However, it is extremely bright and somewhat compares to my Dragon Laser 532nm - 200mW or my Wicked Laser 532nm on low power...but only for about 10 seconds. My guess is that it's briefly at over 50mW, then power drops considerably after that 10 seconds. I can clearly see the Rayleigh effect during this short time in a lighted house at night. Is the power dropoff a result of the diode overheating? If so, is there anything I can do to increase the "duty cycle"?

When is it acceptable to not wear glasses indoors?

February 7, 2016, 10:18 pm

≫ Next: Good Lord.

≪ Previous: Overboosted 5mw laser?

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I have a 2.5w wicked laser Arctic. And a room about 10x10.
I won't lie a bit I shine it in my room quite often, without safety glasses. Most of the time in low power mode for short amounts of time. I've kicked it up to high power mode as well. I shut and lock my door, making sure the dad or dog is in the safe before doing so let me mention that.
I've never really noticed my eyes hurting or any sort of difference in my sight, I've never struck a reflective surface other than the wall. And I've read and read all about how no surface is non-reflective, or else magicians would use it all the time. I just mean not a directly reflective surface such as a mirror or polished finish object.
I just spent a good hour using the search bar and reading about wall related, "my eye hurt" incidents or talks.
But almost found it unclear.
There is always the four rules of laser safety and one of which is, Always wear your safety glasses.
However I've seen people state that within so and so amount of feet you're in the safe, and others state that even matte walls still reflect harmful rays.

So my question is, am I like unknowingly killing my sight a little every time I play with it in there in my room?
I don't notice any different in my sight. When I do however I don't stare constantly on the spot on the wall, I don't shine the beam for very long at a time either.
I get it. And I don't plan to do this any more,

But am I seriously damaging my eyes? C'monnn
I wear the glasses if I'm burning something. And I don't find this very practical, I mean it's fun and cool and all but I like to see the light versus a orange rectangle.
I guess I like to fry my eyeballs too...
I'm open to a scolding if it'll teach me something.
So let me have it