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Old 01-25-2013, 08:19 PM #1
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Default 5W IR from O-Like: is it legit?

I've been browsing the O-Like website recently, and I found a page about what they claim to be a 5W 808nm laser.

My first (emotional) reaction: "OMG 5W SO MUCH BURNING POWER!!!11ONE" (yeah, so I can get pretty emotional )
My second (rational) reaction: "Hold your horses, remember how the old saying goes: if something sounds too good to be true, it probably isn't true."

And in fact, after I started thinking this over, there are many things that make me suspect that laser to be underspec and overpriced.
1) the price is so much higher than the 3W version, which uses the same identical pictures
2) the price of the 3.2W IR labby from O-Like is even lower
3) if the labby requires a big heatsink with a fan to work, PLUS another fan on the power supply, how can the supposedly 5W laser not burn itself out without any fan? (BTW, now they changed the photographs of the labbies, which now show a power supply without a fan)
4) some posts in the Companies section indicate that O-Like has been decreasing in quality, to the point that some call it "No-Like"

So I was wondering: has anyone tried it? And by that, I don't just mean burning stuff with it and decide that "it's pretty powerful", but measuring the power of the beam, its divergence, and whether it can actually have constant performance without dying due to too much heat. Is it legit? Is it an attempt by O-Like to pull a "wicked" stunt?


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Old 01-25-2013, 08:25 PM #2
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Default Re: 5W IR from O-Like: is it legit?

5W seems fairly reasonable, given the price and host size. It is an IR laser, those have been around for a loong time. Just know that you won't ever see more than a blinding faint red dot.
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Old 01-25-2013, 08:43 PM #3
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Default Re: 5W IR from O-Like: is it legit?

Yikes that seems like alot of current for a cheap 18650 to use.
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Old 01-25-2013, 09:11 PM #4
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Default Re: 5W IR from O-Like: is it legit?

Whoa I missed that. Don't the 5W IR diodes need about 4 amps?

Edit:
Threshold current (A) ≤1.20
Operating current (A) ≤5.40
Operating voltage (V) ≤2.2
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Last edited by ZRaffleticket; 01-25-2013 at 09:13 PM. Reason: nooooo 18650s
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Old 01-25-2013, 09:26 PM #5
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Default Re: 5W IR from O-Like: is it legit?

Quote:
Originally Posted by Devil_Master View Post
I've been browsing the O-Like website recently, and I found a page about what they claim to be a 5W 808nm laser.

My first (emotional) reaction: "OMG 5W SO MUCH BURNING POWER!!!11ONE" (yeah, so I can get pretty emotional )
My second (rational) reaction: "Hold your horses, remember how the old saying goes: if something sounds too good to be true, it probably isn't true."

And in fact, after I started thinking this over, there are many things that make me suspect that laser to be underspec and overpriced.
1) the price is so much higher than the 3W version, which uses the same identical pictures
2) the price of the 3.2W IR labby from O-Like is even lower
3) if the labby requires a big heatsink with a fan to work, PLUS another fan on the power supply, how can the supposedly 5W laser not burn itself out without any fan? (BTW, now they changed the photographs of the labbies, which now show a power supply without a fan)
4) some posts in the Companies section indicate that O-Like has been decreasing in quality, to the point that some call it "No-Like"

So I was wondering: has anyone tried it? And by that, I don't just mean burning stuff with it and decide that "it's pretty powerful", but measuring the power of the beam, its divergence, and whether it can actually have constant performance without dying due to too much heat. Is it legit? Is it an attempt by O-Like to pull a "wicked" stunt?
The IR hand held only puts out 4Watts.
That sounds about right if the are using an 808nm 5Watt LD
through the optics.


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Old 01-25-2013, 10:56 PM #6
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Default Re: 5W IR from O-Like: is it legit?

Obviously a 5W is going to be more expensive than 3W -.-
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Old 01-26-2013, 12:11 AM #7
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Default Re: 5W IR from O-Like: is it legit?

5W IR diodes are fairly common,

Note as laserbee said it just a 5w diode, output is probably closer to 4w

They claim temp00 which is probably worng...
since in the picture it is burning a line, not a hole...

IR diodes are the most efficient diodes,
so if it has a good driver, it would produce less heat than a 2W 445
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Old 01-26-2013, 01:56 PM #8
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Default Re: 5W IR from O-Like: is it legit?

Thank you all for the replies.
Quote:
Originally Posted by ZRaffleticket View Post
5W seems fairly reasonable, given the price and host size. It is an IR laser, those have been around for a loong time. Just know that you won't ever see more than a blinding faint red dot.
I know about IR diodes in general (and yes, "blinding faint red dot" is an accurate description of their output), I was just surprised about the existence of diodes that actually output 5W, also considering how this thread describes a 5W IR laser as a "piece of junk".
Quote:
Originally Posted by joeyss View Post
Yikes that seems like alot of current for a cheap 18650 to use.
Quote:
Originally Posted by ZRaffleticket View Post
nooooo 18650s
Does this imply that the battery won't be able to provide enough current and the diode won't lase (or will lase without reaching the stated power)?
Quote:
Originally Posted by Billiam View Post
Obviously a 5W is going to be more expensive than 3W -.-
Well yes, obviously. But the power/price ratio is lower for the 5W than for the 3W. That had made me suspect that the price had been inflated, especially since the specs mention the output power as ">4.0W", compared to the 3W labby, which output power is actually stated as "3.2-3.4W".

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Old 01-27-2013, 11:09 AM #9
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Default Re: 5W IR from O-Like: is it legit?

Personally, I'd be way too scared to use such a powerful IR laser!

The only way I'd go near it is if I could wear 3 pairs of safety glasses!
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Old 01-27-2013, 10:15 PM #10
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Default Re: 5W IR from O-Like: is it legit?

IR diodes are pretty efficient - up to 60% in some cases. That means it's dissipating about the same heat as your typical 445nm pointer.
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Old 01-28-2013, 12:30 PM #11
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Default Re: 5W IR from O-Like: is it legit?

Quote:
Originally Posted by Strahany View Post
Personally, I'd be way too scared to use such a powerful IR laser!

The only way I'd go near it is if I could wear 3 pairs of safety glasses!
Me too! But imagine... Don't mess with me!! haha
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Old 05-01-2013, 04:04 PM #12
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Default Re: 5W IR from O-Like: is it legit?

So what would be the point other than having a very HOT beam?
I know most of us buy them for the astetics. And to impress the girls. I have a 1W 445nm and want to build a 3W, just because it should produce a stronger beam that I can SEE. I'm still learning so....
How does the dot appear through your safty glasses BTW?
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Old 05-01-2013, 04:09 PM #13
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Default Re: 5W IR from O-Like: is it legit?

Quote:
Originally Posted by RawPaul View Post
How does the dot appear through your safty glasses BTW?
It doesn't Use a video camera with IR lasers to see where it's pointing.
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Old 05-02-2013, 01:02 AM #14
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Default Re: 5W IR from O-Like: is it legit?

This is good for night vision but not much else.
Need some good safety glasses too, OD5 glasses will allow 5mW to trasmitt through the glasses.
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Old 05-02-2013, 04:32 AM #15
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Default Re: 5W IR from O-Like: is it legit?

^Check the math again. OD3 allows 5mW. OD5 allows 50w.
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Old 05-02-2013, 04:55 AM #16
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Default Re: 5W IR from O-Like: is it legit?

Dammit that % gets me everytime :-D
__________________
405nm - 1,910mW (6)
445nm - 15,895mW (15)
450nm - 370mW (2)
473nm - 110mW (2)
532nm - 1250mW (6)
632.8nm - 2mW (1)
637nm - 5105mW (8)
660nm - 1,850mW (5)
670nm - 600mW (1)
685nm - 40mW (1)
808nm - 2,700mW (3)
RGB - 400mW (1)

In Progress:
405nm - 500mW+ Kryton Groove
445nm - 2,000mW+ C-88
520nm - 50mW Ultrafire RL-118 SS
632.8nm - 0.5mW Mini HeNe

Safety Glasses
2x Eagle Pair OD4+ 190nm-540nm
2x Eagle Pair OD4+ 90-400nm & 580-760nm
OEM Lasers OD 5+ 190-435nm & 730-1085nm

LaserBee 5W Laser Power Meter


>Fiddy's Review/Tutorial/Build Compilation Thread<
>>FS: Custom Glow Rings<<
>>>Plasma Speaker Kits (High Frequency Audio Tesla Coil) reserve yours today!<<<

CajunLasers FTW!
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