59$ 50mW 450nm Single Mode Pen

[eytyxhs]

So if i wanted just 5mW of 445nm I'd have to go pay 279$ at LG?

No, this laser is very easy to dissasemly and Pot mod it

 

[eytyxhs]

Dot at ~45feet:

 

[StardustSprinkles]

Ohh. I see.

 

[Cyparagon]

No, this laser is very easy to dissasemly and Pot mod it

Have you done it yourself or is that pure speculation?

 

[aryntha]

Just got one of these, too. Definitely a bit more blue than the 445s, will spectro it later, I'm guessing 451-452, compared to other known units I have. 47mW says Kenometer and Radiant.

 

[DJNY]

Just got one of these, too. Definitely a bit more blue than the 445s, will spectro it later, I'm guessing 451-452, compared to other known units I have. 47mW says Kenometer and Radiant.

How is it next to the blue I sent you?

 

[aryntha]

It's weird, Phi... Really technically there's only one singlemode 450. But the one you sent me is a little darker and obviously only 15mW or so... So I'm really wondering if maybe there *is* more than one singlemode blue?

The one I got from you is certainly singlemode too though.

 

[qumefox]

Well there are multiple SM450s. OPNEXT has at least one. OSRAM has at least two. Who knows who else makes them. But every datasheet i've seen says +/-10nm.. so it's highly possible for one to be close to 440nm and another to be close to 460nm.

I'll put the three of these pens I have on the way on the spectrometer when I get them.

 

[rhd]

Well there are multiple SM450s. OPNEXT has at least one. OSRAM has at least two. Who knows who else makes them. But every datasheet i've seen says +/-10nm.. so it's highly possible for one to be close to 440nm and another to be close to 460nm.

I'll put the three of these pens I have on the way on the spectrometer when I get them.

I'm not convinced that the OPNEXTs are out in the wild yet.

Back in July, Avnet told me that they'd have the HL45023TG by October, for around the $200 price point (It's Avnet, not China, so the price sounded legit). But, apparently, they haven't actually received it yet, because as far as I can tell (as of December), it's not in their inventory.

 

[REXAR]

mini B - 445nm 50mW Pocket Low Power Blue Laser Pointer

Is this laser the same as Laserland's one? I know it says 445nm, but is there really that big of a difference? I'd really like to have a low power blue laser, but I really hate the pen host. Do you think Lazerer's laser is worth the money?

 

[Ash]

Ooh, ouch. What's with the thread jack?
-Rep

If you look at the picture they are totally different lasers.
Very few members have any of the new "low power" 445nm lasers...
It's worth the money if you want it enough.

 

[rhd]

Ooh, ouch. What's with the thread jack?
-Rep

If you look at the picture they are totally different lasers.
Very few members have any of the new "low power" 445nm lasers...
It's worth the money if you want it enough.

I'm with ASH. I won't neg rep you here, but seriously - it's obviously not the same laser. If you just looked at the photos, they're clearly different hosts. Even if you were just talking about whether it was the same diode, if you just read this thread, you'd see info from members discussing the various SM450s that are out on the market.

If you don't like the host, build your own. The diodes are $50, which is basically the same price as a multi-mode 445. It's no more difficult of a build. In fact, it's basically more similar to a PHR build (similar Vf, similar Current), but you get blue not violet. There are a TON of PHR builds and tutorials on this forum. Look one up, drop $50 on the SM450 diode of your choice, and do the build yourself in whatever host you want.

 

[REXAR]

I'm very sorry about bringing up an old thread, I guess I didn't look at the date. It won't happen again! I will definitely attempt a build, I didn't know diodes were cheap. Thanks for your help!

 

[qumefox]

One key difference though is that these single mode 450nm diodes are 3.8mm instead of 5.6mm. I believe the Vf is also even higher than that of 405's, but not as high as the 510's.

 

[rhd]

One key difference though is that these single mode 450nm diodes are 3.8mm instead of 5.6mm. I believe the Vf is also even higher than that of 405's, but not as high as the 510's.

I've found that their Vf is much much closer to a 405, if not almost exactly the same. I think that a beginner to the forum could try a 445 SM build using a 405 "tutorial" or "build guide" and basically come out well. There is a wealth of PHR info here, and I think if you followed something like this:
http://laserpointerforums.com/f51/diy-100-phr-803t-violet-laser-tutorial-36801.html
there wouldn't be much that you'd need to change to get a good SM 445 build out of the process.

 

[tsteele93]

I just got one of these today and am very pleased. It looks like every other cheapie pointer I have gotten so far (except the chrome greenie I got from Clif) and it is bright, with a nice precise point and a very visible beam. Money well spent with quick shipping actually.

Tom