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laserbtb True < 1mW 450 nm Tested

moh17

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Hi, I want share with you the safest true blue laser on earth maximum output is 1mW verified. These laser is much safer than my PowerPoint presenter that measured 2.48mW. The laser is 100 % eye safe. The beam is clear at night. Kevin tested these laser before shipping and I verified that the output power is true.









Some Specification

Wavelength 450nm

Transverse mode TE00 single mode

M2 factor <1.2

Beam divergence,full angle <2.8mrad

Beam Diameter at Aperture <2.5 mm

Class 2 laser product
 
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moh17

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What's the current draw?



Is that a joke?

I haven't measured the current, I was concerned about the optical power, which is the only way to know if a laser is safe or not. Batteries do not last too long, it seems that it is a common problem with laserbrb.
 

Gabe

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Any pictures of the dot? How bright is it compared to other colours at that power? I was surprised to learn that you could easily see the beam at night, even at 1mW.
 

moh17

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Any pictures of the dot? How bright is it compared to other colours at that power? I was surprised to learn that you could easily see the beam at night, even at 1mW.

Hi, the laser is too dim to see in the day but it is very bright when you turn off the light or shine it at night. 450 nm is blue not purple. Also, it is brighter than 405nm.


The image is taken at my room after turning the light off
 
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rhd

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I haven't measured the current, I was concerned about the optical power, which is the only way to know if a laser is safe or not.
Well that's not true. I'm pretty sure that if I saw a laser etching metal, burning plastic, etc, I'd be able to identify that it was NOT safe, without knowing its optical power.
 

moh17

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Well that's not true. I'm pretty sure that if I saw a laser etching metal, burning plastic, etc, I'd be able to identify that it was NOT safe, without knowing its optical power.
You are right but not all the lasers that cannot burn are safe. A direct hit in the eye with a 20mW laser will permanently damage your eyes also, at this power the laser can't burn anything, in fact you will never know whether it is 20mW or not until you measure the optical power especially for blue lasers which are pretty dim.
 
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Cel

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I think some people are too paranoid about safety when talking about power.
 
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mortuus

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I think some people are too paranoid about safety when talking about power.
depend what power u are talking about? if we talk anything over 20mW then no u def dont want that in your eye, if u do i can shine my 100mW in your eyes if u are willing to take that risk, lasers are not toys!
 

Pman

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I am having trouble with the beam seeing if it's actually 1mW. Don't see how this is possible especially as you say "the beam is clear at night" unless you mean you can't see it because the beam is "clear";)
 

moh17

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the laser appears bright when I turn the light off. I was surprised that it is truly 1mW. I measured the laser on two different meters both confirmed that it's 1mW +- 0.5. Also, Kevin measured the laser, so 3 different measurment should confirm that the laser is in these range. The laser is 450nm which is brighter than 405nm. These laser makes my eyes feel comfortable even when shining it to white paper. I gave a presentation with this laser it can be seen when the light is off also, it attracts the audience and do not disturb them as green lasers do and most important, I will not get panic when taking direct hit from these laser in fact, I used to shine this laser to mirrors CDs and I'm feeling well. I don't encourage any one to take these risk even if no damage will happen at this very low power laser. Thanks,,
 

Pman

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I am having trouble understanding what you mean. Yes the dot is bright but do you see the whole beam in the dark or just a flicker here and there from a dust particle? Just so you understand I own MANY 405 and 445-462nm lasers in a wide variety of powers.
 
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moh17

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I am having trouble understanding what you mean. Yes the dot is bright but do you see the whole beam in the dark or just a flicker here and there from a dust particle? Just so you understand I own MANY 405 and 445-462nm lasers in a wide variety of powers.
Sorry, for miss understanding your question. I was confused about the laser beam and laser dot. You cannot see the beam except when it's too dark, you could see a very thin beam when viewing the laser directly. It is not good for viewing the beam, if you care about the beam then a 100mW will do the job. This laser is good for presentation purposes and cannot be used in astronomy unless the sky is clear which usually not the normal case. Best,,
 

Gabe

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I think some people are too paranoid about safety when talking about power.
I think this is so in this particular thread because the laser is meant for presentations, where nobody will be wearing safety glasses. So for a laser that specs out at 1W, a +/- 5mW would mean nothing safety wise. But for this laser, it's a huge difference, if you catch what I mean.
 

RYDorDIE278

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Im going to have to get one of these lasers! since last year N.Z. has a limit of 1mW lasers only, im sure one of these would last forever!(if looked after) with the diode being well underdriven,
Even though Us @ LPF dont Usually Underdrive diodes

It would Be awesome to be outside at Night and say "This"(1mW) laser is Legal here in NZ and "This"(copper DominatoR) Laser is not Legal In NZ . Can You Notice the Difference :eg:
 
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joeyss

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Im going to have to get one of these lasers! since last year N.Z. has a limit of 1mW lasers only, im sure one of these would last forever!(if looked after) with the diode being well underdriven,
Even though Us @ LPF dont Usually Underdrive diodes

It would Be awesome to be outside at Night and say "This"(1mW) laser is Legal here in NZ and "This"(copper DominatoR) Laser is not Legal In NZ . Can You Notice the Difference :eg:
Didn't somebody get in trouble in Aus for buying a cat laser at a store that said 1mw. Somehow they saw him shine it and they tested it and it came in at 1.2 mW and he got fined.

I swear I read that here. Like how the hell is it his fault he bought something in the country.
cause you know your eyes can tell the difference between 0.2mw
 




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