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Laserlands 5mW 520nm Pointer with pics.

CurtisOliver

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In order to add some pics, I decided to move my review onto a new thread to prevent thread hijacking Razako. :) As you may be aware, six members were given free 520 pointers to review. As others have done the same I have made the review quite brief.

Laserlands 5mW 520nm Laser Pointer.

Wavelength: 520 +/-5nm

It has a beautiful colour, resembling traffic light green. I was pleasantly surprised by the colour compared to that of a 532nm. This wavelength is more pure of a green IMO. Although this seems to be more apparent in darker environments. I believe my laser is probably in the 520-525nm range.

Here are some comparison shots of my 532 and this 520.

IMG_1671.jpg
IMG_1674.jpg


Power: 5mW (Rated) Actual 5-6mW (LPM tested)

Its power also was of a surprise to me, I was in a reasonably lit room at the time and I was able to see a dim beam when hovering over black objects. Without an LPM test I can't say for definite, but the power is most likely exceeding 10mW. In a dark room, the laser is able to compete with my 589 Spartan so I'm most content with the power. The Spartan is probably 2-2.5x brighter.

Here are some beamshots.

IMG_1657.jpg
IMG_1656.jpg


Batteries:

This laser takes 2x 16340 (CR123A) at 3.7V each. It is too early to tell what the battery lifetime is yet, but I can imagine it will be longer than that of the 589 Aurora and slightly less than the 589 Spartan.

IMG_1667.jpg


Build quality:
For the retail price of this laser, one thing that was impressive was the quality of the host. The host is actually of high quality. The batteries fits fine, with no contact problems or rattle. The tail button turns on/off without issues. The lens end is well designed. The only thing I would say, is I'd rather have a glass lens. But for the price, I really can't complain. The lens does the job, you just have to be extra careful when cleaning it.

Edit: Something I found out by accident, is that the tail cap is also phosphorescent (glow in the dark). Very useful for when in near total darkness.

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IMG_1663.jpg

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Beam Specs:

I can say that I'm happy with the beam quality. The dot is slightly oval. The divergence is also very good, however the fast axis is actually negative. This is now the second laser in my collection to have a negative axis.

Beam Diameter: 4.06 x 1.20 mm
Beam Shape: Oval
Beam Divergence: ~(-1.027 x 0.381 mRad)

This is the beam profile when magnified by a long focal convex lens.

IMG_1668.jpg


A picture of the dot from around 5m away.

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This is how I measured the beam size. Both are at 0.2m away from the aperture.

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Shipping:

The shipping was quicker than expected, seeing that it was coming from China. Usually it can take up to a month for things to arrive, but only 9 days after I received my tracking number, it had arrived. :) Very good for the impatient hobbyist. :p

Packaging:

The seller had packaged the laser well. No risk of the laser being broken, as there was protective foam inside the laser box as well. But like Razako already said. The box saying laser torch on it does make it a bit risky going through customs. 1) Seeing the word laser, already can flag interest with the authorities. 2) The word 'torch' usually is an object which is particularly bright. Put both together, and you could have a problem.
Luckily for us, we didn't. But the custom label did state the item as a gift.

IMG_1673.jpg
IMG_1672.jpg


Overall, this laser has made a very nice addition to my collection. It is highly stable, giving me the idea that the diode inside might be able to cope with some more power? :whistle: Are these MDF520's or more powerful Osram PL520-50's possibly?
Well anyway, I finally have a 520. :p Already considering a 1.4W 520 soon. :whistle:

Also, just a quick thank you to Laserlands. He didn't have to send out free lasers to us, so again thank you. :beer: These are by far, the cheapest 520's on the market at the moment, and you sure would not think it. I highly recommend this laser to anyone, not just beginners.
 
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lasersbee

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Nice Review... I think I'll pick one up to
compare the color to the 1Watt 520nm
LD I just picked up.

Jerry
 

CurtisOliver

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Thank you Jerry. :) It will be interesting to see if you see any difference. The diode is rated at 515-520 according to Laserlands, but based on the difference between my 532, I am simply estimating it to be 520-525.
Enjoy your 1W 520. :beer: I am going to save up for one of Jordan's modules I think. :)
 

lasersbee

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I didn't get my 1W from Jordan... So I hope I
didn't get screwed..;)
Although I did buy the largest Copper heat sink
he had.

Jerry
 
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CurtisOliver

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Let's hope not. You should have a nice stable diode if you do get it. :beer:
 

BowtieGuy

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Nice review Curtis, and a pretty good little laser too! :beer:
I've always liked that host style, looks sturdy as a tank, and if your diode ever dies, you've got a great start for a transplant.
Good looking comparison shot with your 532nm, I really like 520nm color, especially when shown side by side with the 532.
I'm real curious to see what it will LPM at.
:gj:
 

CurtisOliver

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Nice review Curtis, and a pretty good little laser too! :beer:
I've always liked that host style, looks sturdy as a tank, and if your diode ever dies, you've got a great start for a transplant.
Good looking comparison shot with your 532nm, I really like 520nm color, especially when shown side by side with the 532.
I'm real curious to see what it will LPM at.
:gj:

Thank you BowtieGuy. :) Yes, the host is really good. The comparison was actually pretty hard to get with a phone. It is a nice colour. Especially if you shine it into a corner, the green glow is beautiful. :beer:
 

GSS

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Nice Curtis, :beer:
the only neg I could say was that styrofoam extra packing.
Great for safe packing but that stuff goes right through me like nails on a chalk board:eek:
 

CurtisOliver

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Thanks GSS. :) It came in handy for the colour testing though. :D
 

BowtieGuy

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To be honest, I think your phone camera did a pretty decent job of showing the wavelength difference, and I agree, the green glow is beautiful.
 

CurtisOliver

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It didn't do a bad job, took a couple of attempts to get past the brightness of both of them, but you can see a realistic colour difference.
 

diachi

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Thanks for the review! :) They're all looking rather decent so far.

Still waiting on mine...
 
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CurtisOliver

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Thanks for the review! They're all looking rather decent so far.

Still waiting on mine...

No problem. :) I hope yours turns up soon and also is a good one. Let us know when it arrives. :beer:

Nice lil lasers, thank you for sharing.
I recommend them, they are very cheap but reliable lasers so far.
 
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GSS

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Thanks for the review! :) They're all looking rather decent so far.

Still waiting on mine...
Wow didn't realize that you were still waiting. Are you seeing movement in tracking?

Anybody try chilling the host a little yet?
 
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CurtisOliver

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No not yet. It will be interesting to see if it makes any difference.
 




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