The LASERS Are Too Damn Bright!

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PHeller
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The LASERS Are Too Damn Bright!

I’m looking for as low-powered of a laser pointer as I can find. For safety’s sake, as a cat-toy.

It’s surprisingly difficult to find something that is under 1MW.

I had originally tried to find a lower power 18650 laser – one that would last a lifetime on a single charge, but I don’t trust those be low-powered enough.

Then I started looking for low powered AAA lasers, thinking the less battery would mean lower power…but all of them are listed as 1MW.

Any suggestions on a low-power laser for a cat toy?

Omega_17
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I love the red laser on my infrared thermometer. If you don’t have one its a super useful tool and very cheap.

Pip
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1 mW should be just fine, assuming the rating is actually accurate, which us a lot to assume. If it’s 1 MW we’re all in trouble. Wink

The real problem is that the chinese lasers have mostly fake ratings.

sesgum
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MW – mega watt 1,000,000W

mW – mili watt 0.001W

raccoon city
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I don't know lasers that well.

If you accidentally shine a 1 mW laser in an animal's eye, will the animal be okay?

CollectEverything
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raccoon city wrote:

I don’t know lasers that well.


If you accidentally shine a 1 mW laser in an animal’s eye, will the animal be okay?


That’s a good question and one I have every time I see a video of someone playing with their cat using a laser.

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Lightbringer
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Worst case, put sunglasses on it.

The laser, not the cat.

Colored plastic works fine, eg, even green plastic on a red laser to cut the brightness. No need to get ND gray or anything fancy/expensive.

Or get a pack of these https://www.amazon.com/dp/B0166JFLES/ , hang ‘em by the wires to make a chandelier of sorts, twirl it around, and make the cats go crazy trying to get each dot. “5mW” is likely quite… optimistic.

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Pip
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5 mW is the legal limit for laser pointers because the blink reflex is faster than the amount of time it takes to damage your eye at that brightness. Your eye will automatically close without harm.

Now if you intentionally stare into it, all bets are off.

CNCman
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Tape a piece of aluminum foil over the end and use a needle to put a tiny hole in front. I did this for our Rat Terrier to soften the light. Wink

PHeller
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Could you unscrew the laser “head” and put something in there for a cleaner, more stable way of dimming the beam?

turkeydance
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use an “almost dead” battery.

Couchmaster
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I know everyone is trying to help, but I just have visions of blind cats.

Lightbringer
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Problem is, that on a dark carpet, the dot won’t be very bright at all, but on a white wall or ceiling it’ll be really bright. Nature of the beast. Bright enough to be dazzling if you catch a reflection, but won’t show up well on dark carpets, and Mr Cat might lose interest.

Just gotta be sure to not be a jackass and shine anywhere there’d be a shiny/reflective surface. I was always careful with conventional red lasers. Cats loved ‘em. Never ever even came close to letting a cat get a laser in the eye, direct or reflected..

Any kids, or idiot adults, and all bets are off. Just forego the laser entirely.

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Bort
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sesgum wrote:
MW – mega watt 100,000W

mW – mili watt 0.001W


If 100,000W for more then a fraction of a second can be had from one 18650 or a few AAA batteries then sign me up Party

BTW a megawatt is 1,000,000 Watts Beer

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alumenum
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I’d assume the little keychain button cell ones they sell at pet stores would be ok. As others have said, avoid too much white walls until the battery drains a bit.

But if you have a thrower with a small hotspot, those work great too!

I can recommend the Noctigon K1, and the Manker MC13, both with CULNM1.TG. I have used both with cats and they are definitely safe (obviously as long as you don’t shine directly into the cats eyes). I use them on moonlight or low-medium and they work great even during the day. Mine are white but you could get a colored one which might be fun.

Though I guess all cats are different so YMMV but I can confirm 2 black cats go nuts over them and even seem to prefer them to a laser.

The MC13 is slightly better I’d say because of the TIR. You can get the 18650 tube for it too.

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yeah the lasers that run off 3 button cells are pretty low power

some run from 1 AAA and those are wimpy too

it;s the ones that run off 18650 that can get up there in power

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azj
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1mW is fine. The regulations say 5mW is safe for general use (dont point directly at your eye though). As you’ve mentioned/complained, it’s rather difficult to find actual low power ones now. Try a dollar store maybe?

If you want to feel better, see if you can either get one with a focusable (defocusable) beam and make the dot bigger, or scratch the lens to diffuse it..

Some come with “fancy” add-on things that make little pictures like butterflies or whatnot. All of these spread the light output over an area, degrading the power. Basically you just don’t want a tiny dot.

RobertB
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Most of your boardroom & classroom laser pointers are like 1mW. I have a certified 4.67 green laser for star gazing, pointing out constellations and such. Your classroom pointers are fine for cat toys. Just use it with some common sense. Frogs and Toads like them too. They think they are bugs and try and attack the dots.. pretty funny

Hank33
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RobertB wrote:
Most of your boardroom & classroom laser pointers are like 1mW. I have a certified 4.67 green laser for star gazing, pointing out constellations and such. Your classroom pointers are fine for cat toys. Just use it with some common sense. Frogs and Toads like them too. They think they are bugs and try and attack the dots.. pretty funny !{width:100%}https://i.imgur.com/yNINm3a.jpg![/quote]

Yeah, but can it light up a cigarette?tongue-out

Lightbringer
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RobertB wrote:
Frogs and Toads like them too. They think they are bugs and try and attack the dots.. pretty funny

Bugs some birds. LOL

Had a mourning dove just putzing around the backyard. I shined the laser dot right in front of him a foot or two, just steady.

He stops, gawks at it a while, tries to walk around it.

I move the dot so again it’s right in front of him a ways.

Nope, tries to walk around it again.

Repeat a half-dozen times or so.

He gets flustered, flies off.

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RobertB
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Hank33 wrote:

Yeah, but can it light up a cigarette?tongue-out


No, but my 1.7W laser can

fourbyfive
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Lasers and pets, a small anecdote. Took my red pointer over to a friend with two Rottweilers. They played hard and had fun, but when it was over one of them couldn’t let it go, and now goes nuts at every specular highlight it sees, inside or out. Chrome bumpers during a sunny day are a dicey thing, especially given the mass of these dogs. Take out your knees in a micro-second. It re-wired its brain somehow and turned into a real problem for the dog. Anyway, I no longer let animals play with laser dots. Sometimes when I see politicians on TV, I do wonder. Did their significant other recently have a pointer play day?

RichH
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raccoon city wrote:

I don’t know lasers that well.


If you accidentally shine a 1 mW laser in an animal’s eye, will the animal be okay?

Cat toy lasers are always red, it doesn’t cause blindness at low power. There is a guy on YouTube called Styropyro who does some crazy stuff but is very knowledgeable about the dangers.

South Saxon

PHeller
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What about a really tight hotspot using a different reflector and lens in a normal 18650 flashlight?

NVM – likely way more expensive than a cheap pointer.

Perception
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fourbyfive wrote:
Lasers and pets, a small anecdote. Took my red pointer over to a friend with two Rottweilers. They played hard and had fun, but when it was over one of them couldn’t let it go, and now goes nuts at every specular highlight it sees, inside or out. Chrome bumpers during a sunny day are a dicey thing, especially given the mass of these dogs. Take out your knees in a micro-second. It re-wired its brain somehow and turned into a real problem for the dog. Anyway, I no longer let animals play with laser dots. Sometimes when I see politicians on TV, I do wonder. Did their significant other recently have a pointer play day?

Cats and lasers are supposedly fine, dogs and lasers are not. Apparently lasers can cause significant and permanent psychological damage in dogs.

azj
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Theres always something like this:
https://www.chewy.com/ethical-pet-laser-exerciser-original/dp/56335

That said, they do seem to be fine to play with cats, but not dogs as someone above mentioned

RichH
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My terriers don’t even see the light spot of a laser.

South Saxon

Lightbringer
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Well, not anymore

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RichH
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Lightbringer wrote:
Well, not anymore
Big Smile

South Saxon

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Id just do away with the cat and buy a fish in a small fish bowl.

CR888

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