LED Shoppe lasers and IR danger

[Unoid]

I ordered two 5mw green lasers and a 50mw green from LED Shoppe, based on everyone reviews here.
I'm under the impression they do not have IR FILTERS.

How dangers would these lasers bee to play with? the two 5mw's not safe for playing with my cat, or for using in presentations etc?

IR comes out like a flashlight cone and not a beam correct? so if I point the beam to lets say, my ear, I would be soaking IR in my retina, correct?

Should I be adding filters to both the 5mw and 50mw?

 

[JLSE]

IR is commonly believed to behave like a flashlight, but it is not always the case. Test your laser and go by your individual tests, rather than guess. I have had greens that can manage 20mW+ of IR accross the room in the form of a four inch spot.


In other words, while kitty is chasing the 2mm dot, you could be lighting up his face with a dangerous ammount of IR..

 

[Unoid]

IR is commonly believed to behave like a flashlight, but it is not always the case. Test your laser and go by your individual tests, rather than guess. I have had greens that can manage 20mW+ of IR accross the room in the form of a four inch spot.


In other words, while kitty is chasing the 2mm dot, you could be lighting up his face with a dangerous ammount of IR..

thanks for your reply. I am at least smart enough to research this here and ask before using them. I don't want to blind my kitty.

How would I test? and has anyone installed an IR filter into the LED shoppe lasers? whats the process?

 

[Unoid]

Ok I found out I can see IR with my kodak v610 camera.

So I can test to see IR light spread so I know how dangerous.

Anyone know how hard it is to install an IR filter into these?

 

[Razako]

Ok I found out I can see IR with my kodak v610 camera.

So I can test to see IR light spread so I know how dangerous.

Anyone know how hard it is to install an IR filter into these?

You can test the IR with your camera and if too much is coming out then buy an IR filter for 99 cents from optotronics.

 

[hydrogenman15]

I really didn't see any IR on my camera. Although, 99 cents is not a lot of money anyways.
--hydro15

 

[Unoid]

5watt too much to play with a pussy cat?

 

[Xplorer877]

5watt too much to play with a pussy cat?

I think you mean 5mW. I only like to use cheap red lasers with my cats. 5mW of red is brighter than 5mW of red for humans so maybe it's the same for felines. Plus my cats cant see green for some reason.

 

[hashlasersdosei]

Hey, My cat can see green a bit. Not much tho.

I shone my 5mW green laser and he followed it a bit, then gave up

Then I shone a >1mW red, and he was chasing it for ages!

 

[Xplorer877]

Hey, My cat can see green a bit. Not much tho.

I shone my 5mW green laser and he followed it a bit, then gave up

Then I shone a >1mW red, and he was chasing it for ages!

Same.

My cats favorite color is blu-ray. lol! ;D

 

[Cyparagon]

I have had greens that can manage 20mW+ of IR accross the room in the form of a four inch spot.

So the area is about 80 cm[sup]2[/sup]. Assuming the cat's pupil has a diameter of even 1cm, that's only an area of 0.8 cm[sup]2[/sup] Only 1% of the power enters the pupil. One percent of 20mW is a fifth of a mW - a class 1 laser device. The green dot itself should be of far more concern to you.

Cats' eyes also reflect more light than ours.

You guys worry too much.