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Wow! That's a very interesting story you've got there Radim. Glad things worked out and you didn't get injured. Could have been- not a good thing. I have scared stray cats before and a flock of crows just by flashing the beam near them. The deer, has stories now, to tell his offspring about the time he ran into an ET.
I'm think their eyes are more sensitive than our eyes are. Read that somewhere once. :thinking:
Would you consider this to be the world's most powerful handheld laser? Fear and awe:eg:
I think they might be more sensitive and likely in green region as vegetation is in this color and it is crucial to have good vision in green area. The dot must had look like something extraterrestrial to him.
Come on, everybody knows Arctic is. :crackup:
Radim: are you trying to say the Arctic isn't the most "powerful handheld laser in the world" ? You know that's blaspheme! :crackup:
I had that same thoughts about the green WL and photosynthesis. Think there's something there. :thinking:
Optical brighteners, optical brightening agents (OBAs), fluorescent brightening agents (FBAs) or fluorescent whitening agents (FWAs) are chemical compounds that absorb light in the ultraviolet and violet region (usually 340-370 nm) of the electromagnetic spectrum, and re-emit light in the blue region (typically 420-470 nm) by fluorescence.
...
I've no doubt Arctic is the most powerful laser. They claimed it, it must be truth. :crackup: (Disclaimer for those not aware and/or realizing we are joking here: Arctic is not the most powerful laser, even mine peaks nearly 4 W, there are 7 W diode lasers commercially available.)
Radim: Keep in mind/know that at one time Wicked Lasers were the hand held laser industry "trailblazers" long before anyone else and the "sea" of "me too" people came about. ---Arctic Spyder I was in fact the world's most powerful hand held laser --- the WL marketing guys just kept using the fact long after it was no longer the case.
"January 2006 - Launched the Spyder I Series
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The Spyder I had an output of 40mW in the 473nm blue ($3499) and 300mW in the 532nm green ($1999). Crafted out of heat-resistant brass, it was fully waterproof, with a continuous duty cycle. The Spyder I Series held the Guinness World Record for being the most powerful handheld laser in the world."
From: About us - Wicked Lasers
Yes, I'm aware of that. But as you mentioned - that's not valid anymore.
Wicked Lasers no longer makes the marketing claim of being "the world's most powerful hand held laser" either--that is ancient history for a long while now as well, so it is all a daydream/imaginings about a time that no longer exist.
Yes that WL used that claim for so long after it was no longer true is outrageous, but they didn't just make it up they did have at one time a legitimate ownership/claim to that factoid.
The reason I mentioned it is many imagine it was an outright marketing lie/misrepresentation which is not true.
WL did at one time have a right to make that claim.
The hand held laser business, all of it , in no small part was created by WL aggressive and unparalleled marketing campaigns.
In fact the reason LPF itself was created was because of the WL forum when it existed not satisfying many who visited the WL board/forum--so ....
So the point is when people are trashing WL as often happens, they need to realize that a part of why the hobby and other makers came along and exist today is because of the early and original work done by Wicked Lasers, good, bad or indifferent opinions, notwithstanding.
Bob, I've been somewhat interested in these for a while also, I believe the 520nm version would be best overall, and it's up to $200 cheaper depending on 532nm output power.
There has been some discussion about these in -This- thread (pages 8 & 9); I believe Len (Hakzaw) brought these up to the discussion.
It sounds as if they have not been sold here in the US yet, hopefully Gray will have any updated info., Len may also know the status of these as far as availability here.
I've no doubt Arctic is the most powerful laser. They claimed it, it must be truth. :crackup: (Disclaimer for those not aware and/or realizing we are joking here: Arctic is not the most powerful laser, even mine peaks nearly 4 W, there are 7 W diode lasers commercially available.)
Photosynthesis uses light absorbed, CO2 and water to build plant/tree structures. Since all visible part except green is absorbed this explain the green color of leaves, there is chlorophyll responsible for that:
My hypothesis is as wild animals, like deers, live in green environment their eyes are evolutionary adapted to be sensitive for spectre common in this environment to spot predators hidden in vegetation and terrain and run away (those with lack of this advantage were killed by predators before they were able to reproduce, those with this ability had higher chance to survive), also there might be effect of better ability to recognize various edible plants by slightly different color from those with poissoned and not tasty (?). Also plants are know to reflect ultraviolet, so here it also plays role. Also the active time of the day influenced eye evolution and that's why they are much more light sensitive than human.
As a consequence of high (and much higher than human eye) sensitivity to blue - green the bright laser dot therefore is something unknown and animals are led by instinct to escape from unknown and likely dangerous stuff. (I even bet it is a bit painful for them to see green/blue dot at dusk or near sunset.) I think also blue laser will work well, but red won't be much effective (as well as yellow and orange). Interesting is the sensitivity in UV and the shift of peak to blue compared to human eye sensitivity. So, they can even spot you when you think you are not visible, but because your clothes were washed in some detergent it will glow for them much more than human can see as the detergent fluorescent spectre is highly visible for them. So you will look blue in green vegetation to them even human won't see you due to camuflage and lack of sensitivity for that part of spectre.
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WHEW!
This thread is awesome--thanks ALL who have posted and the OP.
AixiZ is soon going to be selling the JL Yamtaka--but not at any Estore.
We are not comfy with sales of these to just anybody (btw the 520 is same price as the 400mW 532 IIRC)
Chuck is also a 'Carry' permit instructor and sells arms.
Thus he has enough contacts with LEs and goes to Gun Shows-- aside from just good sense-no good reason to sell ATM no 'need' for public sales while the seller can be sued for injury/death--and the '5mW' limit
///btw... about 6 yrs ago , at AixiZ, I saw a 'made only for the military' 532 handheld- three uncombined lasers-and took 3 26650s. end to end.
not sure of the Wattage.>2 .
I assume they converge at some point-- next visit I will ask for another peek and ask some Qs.
A 520 'Yama' is on its way to us.
some suggested improvements (already) a code or dongle pin to prevent its use on the victim.
A siren- - (for $25 you can buy the old style stun w/ siren),...
some asked about GPS and auto 911 calling-- but a cellphone serves that need.
A good holster.
a MUCH better video-- a working tutorial. video.... what Gray has now for the Yama can be greatly improved upon imo
I see very clearly that it is not just the Chinalaser sellers who BS about 'actual' powers-
in a search I saw 'claimed' Volts as high as 15 million-- for..
hundreds of devices and a dozen forms--
-BUT the only ones w/ a laser was== a red for AIMING your Taser darts.
I can see these replacing the LED flashlight carried by LE and security officers.
... one common 'Con' from LE is-'we have enough stuff on our belts already'
OK
so don't add.... replace.
anybody want to volunteer for test of the stun gun??
@ adding orange/red tape to pistol style dazzler
YES.. no brainer.
+rep to all when sys allows-
Len
___________combining________
SRRY
Had a tough time loading this pic.
IIRC this is the 'proto' for the dazzler Bob has.. its on a charger btw in this pic.. eiher that or 'yer gonna need a really LONG cord'
don't know if they ever sold them in this 'host'... it looked kewl to me back then ..but now.. not so much.
I've no doubt Arctic is the most powerful laser. They claimed it, it must be truth. :crackup: (Disclaimer for those not aware and/or realizing we are joking here: Arctic is not the most powerful laser, even mine peaks nearly 4 W, there are 7 W diode lasers commercially available.)
Photosynthesis uses light absorbed, CO2 and water to build plant/tree structures. Since all visible part except green is absorbed this explain the green color of leaves, there is chlorophyll responsible for that:
https://en.wikipedia.org/wiki/Chlorophyll
This is absorption spectrum of chlorophyll A and B. Source is wiki - the link above.
My hypothesis is as wild animals, like deers, live in green environment their eyes are evolutionary adapted to be sensitive for spectre common in this environment to spot predators hidden in vegetation and terrain and run away (those with lack of this advantage were killed by predators before they were able to reproduce, those with this ability had higher chance to survive), also there might be effect of better ability to recognize various edible plants by slightly different color from those with poissoned and not tasty (?). Also plants are know to reflect ultraviolet, so here it also plays role. Also the active time of the day influenced eye evolution and that's why they are much more light sensitive than human.
Check out this:
How Game Animals See & Smell | ?????????? ????????? ?????? HUNTER.RU
Source is the link above.
As a consequence of high (and much higher than human eye) sensitivity to blue - green the bright laser dot therefore is something unknown and animals are led by instinct to escape from unknown and likely dangerous stuff. (I even bet it is a bit painful for them to see green/blue dot at dusk or near sunset.) I think also blue laser will work well, but red won't be much effective (as well as yellow and orange). Interesting is the sensitivity in UV and the shift of peak to blue compared to human eye sensitivity. So, they can even spot you when you think you are not visible, but because your clothes were washed in some detergent it will glow for them much more than human can see as the detergent fluorescent spectre is highly visible for them. So you will look blue in green vegetation to them even human won't see you due to camuflage and lack of sensitivity for that part of spectre
I had that same thoughts about the green WL and photosynthesis. Think there's something there. :thinking: