Old 07-07-2010, 05:04 PM #1
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Default confused...

soo.. I did this horrible thing last night and went to the local mall. Even worse than that, I entered Spencers Gifts.

The drew me in with their laser light show. Being curious as to the strength of the laser i pulled out the paper work and was really surprised to see that it states the item is <500mw

Could that be?? Is that even safe?

You can find the item here. unfortunately, it does not give the power. If you are interested in finding this information, you must open the box and pull the paperwork out of the plastic baggy.

Green Laser Kaleidoscope in


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Old 07-07-2010, 05:06 PM #2
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Default Re: confused...

Well, <500mW means just that - the output is less than 500mW.

It's probably a 5mW module in there.

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Old 07-07-2010, 05:07 PM #3
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Default Re: confused...

1mW IS <500mW

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Old 07-07-2010, 05:08 PM #4
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Default Re: confused...

I'm pretty sure it's only around 5mW.
After all 5 < 500, right?
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Old 07-07-2010, 05:41 PM #5
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Default Re: confused...

Yeah I understand the less than sign. Everything ive seen though typically reads as such

5mw <5mw
10mw <10mw
50mw <50mw
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Old 07-07-2010, 05:44 PM #6
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Default Re: confused...

Quote:
Originally Posted by ninjachic View Post
Yeah I understand the less than sign. Everything ive seen though typically reads as such

5mw <5mw
10mw <10mw
50mw <50mw
The power on the warning is supposed to be the max power. A lot of times it ends up not being so.

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Old 07-07-2010, 05:45 PM #7
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Default Re: confused...

Half watt green labby module with 100% duty cycle (only kind to use in lightshows) would probably cost around $1000, not $80.
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Old 07-07-2010, 05:57 PM #8
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Default Re: confused...

Even if 500mw was the total output it certanly has safety features preventing it from being inherently dangerous unless said safety features were defeated it should be safe. It might be worth the effort to disassemble one of these to see if the laser produces enough heat to burn things with.
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Old 07-07-2010, 06:01 PM #9
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Default Re: confused...

Quote:
Originally Posted by psi seeker 34 View Post
Even if 500mw was the total output it certanly has safety features preventing it from being inherently dangerous unless said safety features were defeated it should be safe. It might be worth the effort to disassemble one of these to see if the laser produces enough heat to burn things with.
Most likely no, as stated, there is no way you'll get burning laser inside a kaleidoscopic projector, and a cheap one at that.

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Old 07-07-2010, 09:49 PM #10
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Default Re: confused...

The laser itself might be up to 10 or 20mW since even then, no single beam will be more than 1mW.
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Old 07-12-2010, 04:36 PM #11
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Default Re: confused...

Wow, it used to be spencers actually carried 2 mirror independent motor (and controllable, but only via pots) spirograph. Now it's just diffraction grating? bleh!
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Old 07-12-2010, 06:58 PM #12
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Default Re: confused...

Quote:
Originally Posted by Eudaimonium View Post
Half watt green labby module with 100% duty cycle (only kind to use in lightshows) would probably cost around $1000, not $80.
I have a 10mw 100% duty cycle . lol I did not know there even were half watts
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Old 07-12-2010, 07:12 PM #13
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Default Re: confused...

Quote:
Originally Posted by Jacob32123 View Post
I have a 10mw 100% duty cycle . lol I did not know there even were half watts
Yep. 1/2 Watt = 500mW
So you have 1/100th of a Watt of 532nm.
Congratulations!
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