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FrozenGate by Avery

Arctic Vs Spartan.

ZapU said:
I may be mistaken, but I just assumed the 400mW Spartan used the same diode, just dialed back on power. Before the Casio diodes, a 400mW blue was very expensive.
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I managed to find the review of the Spartan 400mW that mentioned the lack of corrective optics.

"EDIT August 22, 2010: I can confirm that the Spartan does *NOT* use corrective optics. I managed to get the driver out, although I killed the laser in the process. Shouldn't be permanent, but we'll have to do some soldering..."

Thread posted by "jedirock" (nice review btw, and hope you manage to re-solder it ok).

http://laserpointerforums.com/f52/dragon-lasers-400mw-spartan-now-pictures-54429.html

Apparently, the issue of exactly how the 400mW Spartan delivers a round beam is still unclear. Someone in the same thread mentioned it had to use corrective optics somehow.

Does anyone know for certain exactly how the round beam's done?
 
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liranxs said:
Hey guys i think i found something that i think is better than the spartan or the arctic. check out my (first) thread for details:
http://laserpointerforums.com/f46/us-251-laser-better-then-arctic-1w-spartan-56706.html#post801241
i hope its not bs....
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IMHO it is not. It has the lowest power that I measured of the three, and the poorest beam alignment. The Spartan has the most power, with better beam alignment than the Rayfoss. The Arctic has the best beam alignment, but is in the middle in terms of power.

My opinions only, YMMV.
 
Garoq said:
IMHO it is not. It has the lowest power that I measured of the three, and the poorest beam alignment. The Spartan has the most power, with better beam alignment than the Rayfoss. The Arctic has the best beam alignment, but is in the middle in terms of power.

My opinions only, YMMV.
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did you measure it yourself? whats its output power? and you are aware that the rayfoss is focusable..?
 
liranxs said:
did you measure it yourself? whats its output power? and you are aware that the rayfoss is focusable..?
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Yes I measured it, it was in the mid-600mW range. The Rayfoss comes with a focusing tool but it can't be focused while in operation without burning your fingers (unless you bend the tool at a 90 deg. angle).
 
Garoq said:
Yes I measured it, it was in the mid-600mW range. The Rayfoss comes with a focusing tool but it can't be focused while in operation without burning your fingers (unless you bend the tool at a 90 deg. angle).
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Then you actually checked the FTB (www.rayfoss.com).
In the FWT (www.rayfoss.com) all you need to do is to turn the head.
These two are completely different (except the diode...)
And when your laser is focusable.. divergence is no longer an issue.
 
liranxs said:
Then you actually checked the FTB (www.rayfoss.com).
In the FWT (www.rayfoss.com) all you need to do is to turn the head.
These two are completely different (except the diode...)
And when your laser is focusable.. divergence is no longer an issue.
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If you notice my post here:

http://laserpointerforums.com/f65/1-1w-laser-igniting-solid-rocket-propellants-56624.html#post801011

...you will see that I ordered the unit originally shown on their website. For the reasons that they explained they shipped me a different unit. The focusing head on the unit I received is recessed within the host, and a tool is required to rotate it. I don't know if they have started shipping the design they initially advertised.

You're right, divergence is not the issue...what I said was that the beam comes out of the host at an angle that is a few degrees off-axis from the centerline of the host. In other words the diode and/or corrective optics are not accurately aligned with the host.
 
What is the material Arctic's lens? Spartan has plastic - it's bad. Easy to scratch even with a cotton swab. And is there possibility to adjust position of the lens in order to get better divergence?
 
graviton said:
What is the material Arctic's lens? Spartan has plastic - it's bad. Easy to scratch even with a cotton swab. And is there possibility to adjust position of the lens in order to get better divergence?
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Have you taken the Lens out and confirmed that the Lens is Plastic?

Please don't make a assumption like that unless you know it to be true.


FYI, My guess is that it's not plastic, for the same reason you can't use the Aixiz Acrylic Lens with the higher-power 445nm Casio DIY builds. The lens will actually smoke up and melt. So I doubt that CNI used plastic...yes CNI makes the Spartan...Dragaon Lasers just re-sells it.

The WL Arctic uses a 445nm coated aixiz Lens, or at least one designed very similarly.

The DL Spartan is already set to infinity, adjusting it will most likely only lead to worse performance.
 
It's definitely plastic or acrylic, because it is very easy to scratch even with the cotton swab and lens cleaning fluid. There were no abrasive particles and after cleaning I saw many microscratches. The material of lens seems to be like compact-disc coating - every material can cause scratches. Glass lens is very hard to scratch, especially with cotton - it's simply impossible. Such lenses don't melt because they have high transparency. In addition - there is no antireflection coating on lens. It's strange, because such coating might increase the power of outcomming beam.
 
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graviton said:
What is the material Arctic's lens? Spartan has plastic - it's bad. Easy to scratch even with a cotton swab. And is there possibility to adjust position of the lens in order to get better divergence?
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I'd really be surprised if the Spartan lens is plastic. I haven't taken the front cap off my Spartan so I couldn't tell you about lens adjustment. All I can say is that out of the three "commercial" 445nm handhelds I purchased it appears to be the best over all.
 
I think that the arctics are built better, but, the spartans can burn closer.Plus they are a lot cheaper and smaller.
 
BTW said:
I think that the arctics are built better, but, the spartans can burn closer.Plus they are a lot cheaper and smaller.
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Did you notice the date on the last post? This is 2011 and the last post was in 2010, it's over a year old.
 
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lol after 1 hour the batt is 3.77 volt lmao stupid video ! 300mW artic ?
 
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