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ArcticMyst Security by Avery

Spyder III Krypton Laser – Power Readings and Battery Current Draw

Lase

Lase

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romogracie said:
I question the accuracy of that comparison calculator.

According to that calculator, a 1.9W 445nm beam is only as bright as a 133mW greenie's beam. I just compared my 1.9W blue laser to my 160mW greenie (both measured by a Kenometer Pro) and the blue beam was MUCH brighter.
Click to expand...

You would have to look at the beams in a completely clean vacuum to see how bright the beams actually are. Dust, pollen, the colour of your room (reflecting light around) would all affect how you perceive the beams.

Lase
 





Hemlock_Mike

Hemlock_Mike

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As for IR filters ..... they can reflect some of the visible beam and this loss must be considered when making measurements of IR output. Not all the metered loss is due to IR. I use a small 808 nM laser to calibrate my filters.
Steve has done wonders with high power.......... Lonnnng ago, I had a 700 mW green from him but had to return it. He was going to send me another to review but it never happened. Oh Well ------------ 700 mW of green is a LOT.... My Dino @ 525 mW is plenty !!

HMike
 
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InfinitusEquitas

InfinitusEquitas

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Lase said:
You would have to look at the beams in a completely clean vacuum to see how bright the beams actually are. Dust, pollen, the colour of your room (reflecting light around) would all affect how you perceive the beams.

Lase
Click to expand...

Lol... actually no. If you were to look at the beams in a complete vacuum you would see no beams at all... nothing for the light to reflect off of;)
 
Hemlock_Mike

Hemlock_Mike

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No target in a vacuum??? That's how I measure beam dia. in air.
Flat black target on a "clear" night.
There is also a reason a laser beam "dies" when pointed into a dark sky -- no crap up there!
HMike
 
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jayrob

jayrob

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Hemlock_Mike said:
As for IR filters ..... they can reflect some of the visible beam and this loss must be considered when making measurements of IR output. Not all the metered loss is due to IR. I use a small 808 nM laser to calibrate my filters.
Steve has done wonders with high power.......... Lonnnng ago, I had a 700 mW green from him but had to return it. He was going to send me another to review but it never happened. Oh Well ------------ 700 mW of green is a LOT.... My Dino @ 525 mW is plenty !!

HMike
Click to expand...

It's definitely a very nice laser as long as it lasts...

Hope it does! :)




Cyparagon said:
That's almost definitely a buck driver. How about at 3V?
Click to expand...

I can test that easy enough, but I'm trying to get my battery to discharge to that low of a voltage. (in a P7 flashlight)

Might have to get back to you on this tomorrow, because I'm going to hit the sack, and I have not gotten the battery down to 3 volts yet...

Perhaps I'll let it get to about 3.2 volts. (I don't like to let my Li-Ion's get as low as 3 volts)
 
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LaZeRz

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Wicked is quite a large company, and they can't spend a few hundred dollars on some LPM's???? I mean, what the hell is going through their heads. If they are that greedy, they shouldn't act like they are trying to improve.
 
Dr.Laser

Dr.Laser

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LaZeRz said:
Wicked is quite a large company, and they can't spend a few hundred dollars on some LPM's???? I mean, what the hell is going through their heads. If they are that greedy, they shouldn't act like they are trying to improve.
Click to expand...

They used to include Coherent LPM graphs with the Spyder II when it was selling for $2k.

BILD0800.jpg

Picture courtesy of Midknight
 
Astralist

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Hi Jay, i'm waiting for beam width & divergence measurement.
maybe i'll bought one and see whats inside it, but first i need to know the beam profile. it's important thing.

:thanks:
 
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Guyfromhe

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This may be a completely retarded question so I hope it doesn't bother anyone...

Why do you care how bright a laser is if you can't look at it? I mean I can't really look at the dot from my ~100 mW green even across the room without my glasses on, so I don't want to imagine what 6 times that would look like... If you can really only look at it through glasses doesn't that defeat the purpose of having a super bright laser... It has the same burning power as any other laser with the same power...
 
Cyparagon

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jayrob said:
Perhaps I'll let it get to about 3.2 volts. (I don't like to let my Li-Ion's get as low as 3 volts)
Click to expand...

There are lots of other sources of power besides lithium ion batteries. a couple of D or C cells, a lithium primary, a wall wart, and a bench power supply to name a few
 
InfinitusEquitas

InfinitusEquitas

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@Guyfromhe - More powerful lasers produce much more visible beams... I use my 500mW o-like indoors all the time as well as my 445's, just don't look at the dot indoors, and be mindful of where you're pointing.

Outside it is quite spectacular to see a powerful beam...

Inside you may want to get yourself a beam dump... something matte black so it won't burn and reflect as little as possible. That way they splash from the dot will not overwhelm the beam itself.
 
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Guyfromhe

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InfinitusEquitas said:
@Guyfromhe - More powerful lasers produce much more visible beams... I use my 500mW o-like indoors all the time as well as my 445's, just don't look at the dot indoors, and be mindful of where you're pointing.

Outside it is quite spectacular to see a powerful beam...

Inside you may want to get yourself a beam dump... something matte black so it won't burn and reflect as little as possible. That way they splash from the dot will not overwhelm the beam itself.
Click to expand...

I guess... the beam on mine is quite visible too... but there's always that nasty dot at the end of it waiting to make my eyes sad... Even my shitty little laser makes a pretty nice beam outside.. Maybe I don't know because I haven't seen a really powerful one yet...

I have a beam dump, I got some matte black spray paint and painted a few boards with it (and painted the other side GITD) Even on that the green is unbearable to look at (though not nearly as bright) I also use it as a screen for my laser projector when I am sitting close to it.
 
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me_too_lazy

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I wonder if this will spur optotronics to lower their prices a tiny bit
I much rather have an RPL over this
but the price is just out of my league

Jack i know you'll be reading this lol
 
jayrob

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Cyparagon said:
There are lots of other sources of power besides lithium ion batteries. a couple of D or C cells, a lithium primary, a wall wart, and a bench power supply to name a few
Click to expand...

Yeah well obviously some cells won't fit in the tube. Besides, Alkaline's won't put out much over an Amp, and 2 X NiMH's won't be 3 volts...

Lithium primaries (e2 CR123's) will only put out maybe 900mA's current. (IIRC)

I'll test it with an IMR 18650...

Update: I just tried it at about 3.2 volts with a discharged IMR 18650, and when I try to go to high power mode, it turns off after a second. And the three battery indicator lights are flashing.

So that means that there was not enough juice/voltage left in the battery to run it on high...
 
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weeba2kv

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Did i read ( I measured 1680mA's battery current draw on high. (steady) )

My o-like 400mw draws almost 2 amps
 
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