You can see infrared?!? Failing safety glasses
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- Опубліковано 29 вер 2024
- I can see infrared laser light? Will common safety glasses protect against it? Let's find out!
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I wish I had seen this before I started playing with my green laser.
Yep me too
yes, I have damaged my eyes with a laser pointer when I was 6 years old, just pointed it right into my eye and admired the red glow for like 10 mins. After I put away the laser I noticed my sight got worse and it is still to this day (27 now)
F
@@Serjgap How did you end up with a laserpointer at 6 years old without anyone warning you against doing something as blatant as that?
I don't remember, I lived with my grandmother, maybe she did not know herself, or maybe I did it secretly despite the warning out of curiosity
Another nicely done video. Can't wait for the next one!
With the 980 nm laser, I think that the percentage of the visibility is so low that your eyes won't realize that you're even seeing it.
Very interesting, great video!
Liquid fluorine vs magnet? Extra spicy
How well do welding masks protect against these lasers? I remember AvE did a test on random glasses and things for welding, and it seemed like the glass they used in masks blocked IR pretty well but I don't know what wavelengths he was looking at.
*Great video, i like it* ✋😁
if someone shines in you're eye with a cheap maby leaking laser what would your vision look like?
Depends a lot on the power level, beam diameter, distance to the laser etc. If lucky, it will just temporarily blind you like other bright flashes of light from the sun etc. But if unlucky with a powerful laser, it could burn permanent black spots in your vision (retina). Be careful with them lasers and thanks for watching :)
cool, i wondered cause my friend got a cheat 5 km laser light from croatia. I wondered if it was "save"
Your vision will look painful.
So bottom line is lasers and ignorance don't mix well. Thanks for the education.
ignorance is a natural selection accelerant as gasoline is to fire
yes
This is honestly important information outside of dealing with lasers. Wish he'd linked to the final glasses he tested. People cutting with an oxy-acetaline, or even a plasma cutter would greatly benefit from such glasses.
In the UK there was a news story about a woman who bought her 6 year old son. A very powerful laser, who almost immediately pointed it into his eyes.
It is quite amazing that people have no idea of the risk even a tiny laser can hold.
Oh they do have an idea of what it can do.
Kids point it at airplanes that are landing, or vehicles on the free way.
Some people just want to see the world burn.
Yes I did lick the video.
www.deviantart.com/kuroseishin/art/Animation-Shannrosh-327239281
FeatheredGryphon sinner
how it taste
How does it taste like
So did i
Warning: do not look directly into laser beam with remaining eye.
An old one, but worth repeating.
hahaha!
Hooray another great Brainiac video😃😃😀😀
My husband bought one of those green laser pens off some vendor that no longer exists on Amazon. Before watching your videos, I had no idea how dangerous they were. Thank you for the information!
I accidentally shined a
Same, caught a glint of a lab laser. It hurt but didn't damage me. If it hit dead center into my eye it probably would have damage my eyesight. Lasers are terrifying,
With a powerful mind like brainiac, It's only logical he would have super vision. Only him and Chuck Norris, are the ones that could win a staring contest with a laser, so don't try this at home folks!
Lol so right
After watching this, I'm quite content to simply watch the master at work, I want nothing to do with powerful lasers myself. You bring up a very valid point of economics in this video, that being that quality products cost more because they're worth more. Better materials and workmanship always equal higher prices, and goods like that are seldom offered at discounted rates. If ever they are, don't buy them, things are cheap for a reason. Excellent work, as always, carry on, sir!
Thanks for mentioning reflective glass surfaces. That’s how my vision damage occurred.
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Great show oh dangers of careless usage of lasers. Great work.👍
Yikes! Thank god I've always avoided power lasers because I can't find proper safety information for them or I might've been blind by now.
7:58 "Eye feel good"
I'll see myself out...
MEYEself?
I've never had any experience with lasers and never really thought about the risks of operating smaller units which you can buy regularly on the market. Surely, I know that they can damage eyesight but I would have never thought of the infrared reflective windows in offices and such.
Awesome video, been watching many of yours lately. Science is neat but it's not very forgiving.
This is amazing. I never knew all of this!
IR green tinted windows are common in new houses and cars also, mine are double pain glass, gas filled, green IR reflective coated. Made a big difference in heating and cooling. Any laser at a star on a slightly humid or even slightly foggy night can reflect the IR and laser light back at you. Moisture reflective micro water particles can be the worst, a water drop can act as a magnifying glass, or a mirror without any known directional reflection back at you or others.
Now I start to feel paranoid and want a pair of safety glasses on me everyday now .-.
808 is near infrared and is visible to most people. Just keep in mind that a class 3b 808 will only appear as bright as a 650nm in the micro Watt range.. Personally I can see up to 820nm and beyond that it disappears.
Yep, the 200 mW 808 nm is barely visible in a lit room to me, so I think it is on the limit of what I can see too. I've only got the 808 and 980 nm lasers, so I don't know how to test where my upper limit in wavelength is. But it will depend on the power level too... Thanks for watching and helping out with answers in the comment section. It's appreciated :)
808 nm light is only visible when at very high concentrations and if the output power is very high. Say you have an 808 nm flashlight; you won't be able to see it since it's so spread out.
*Correct me if that semicolon is put incorrectly.*
Don't believe you for a minute... as human vision is capable to a MAX of 740nm and tested so. I work with Infrared lasers of 808nm and 3 watt and 5 watt ( 5,000 mw ) and these project to 3 kilometers in the night sky (on a clear night)... So what you are saying is that you with naked eyes can see my beam of light from my lasers, from my laser to the 3 kilometer mark? - I doubt that very much... I have to use phosphor tubed night vision to capture this IR beam... as seen here. ua-cam.com/video/DbK8plFyCIk/v-deo.htmlfeature=shared
Could you send me the direct link for the infrared blocking glasses made by honeywell
The Honeywell laser goggles go by model name UVEX, but it also brings up alot of different ones. But searching with "UVEX" narrows it down by a lot.
Fascinating video with important warning about potential hidden dangers when using lasers. Please share with us what model of Honeywell safety glasses you have that DO protect against infrared laser energy. Thanks!
I love these safety videos
Where do you even get safety glasses that block both green and ir
I can see the IR from a remote control as a faint red colour as well. You don't need a powerful IR laser for trying it! Where did you buy those Honeywell safety glasses and how much do they cost? If they're too expensive, I'll have to save up before buying powerful lasers... It seems that they protect you against all kinds of lasers except powerful red ones in the 710-749 nm range so only one pair would be enough (as long as I tell my family and friends not to enter when I'm using powerful lasers).
you see it as a faint red? i see it as a "dim bright violet" color... Ive tried all remotes i have, and all look the same. Is there any difference?
Are you sure you're using your eyes and not a camera (maybe you're a robot and you didn't know)? Are you pressing the buttons? The remotes' IR LEDs sometimes are coated with a purple or black coating. You need to press the buttons and you'll see a pulsing light. It's very dim, though, you should try it on a dark room.
IR security cameras with the ring of LEDs around the lens are pretty obvious to me.
Yeah, I can also see it on a cheap night vision camera I bought (which has the only problem of being underpowered so it's laggy, especially at 720p, and it's unusable with ONVIF). but not everyone has a night vision camera on their house, so I used the remote controller as an example. In fact, I have lots of spare IR LEDs here, in my electronics lab, but almost nobody will have something as specific as that.
yes i am using my eyes. But you probably already answered my question... "The remotes' IR LEDs sometimes are coated with a purple or black coating". Thanks.
I just bought a 532nm green laser pointer and pointed it at the sky (don't worry, did it in the dead of the night when there were no airplanes or birds). It shone so brightly and so far up into the sky as far as the eyes can see, and was admiring the green laser beam coming out from the laser pointer (from the side) for ten seconds or so. My question is: can we hurt our eyes by looking at the laser beam from the side, or in this case, as it shines up high in the sky? Couldn't find much information on this on Google. Thank you.
3:35 Some months ago I was playing with a remote control and I was able to see the IR light. I thought there was something wrong with the IR LED.
I also shone it through a window glass and I still was able to see the light. I just thought that it was not an IR LED after all. I wasn't able to see my phone's IR LED light, though.
With my phone camera the remote light was way brighter. Thanks for call l clarifying that IR is visible at certain wavelengths! Weird that I didn't realize it when I was younger, when I played with a digital camera and a remote for the first time.
Another awesome and very informative video.
Excuse me, where can i buy these laser googles?
When you dive deep into it you realize that lasers are much more dangerous than expected
I looked into a doller store laser pointer when i was 9 and not just for one or two seconds i looked into it like a F**KING CAVE MAN!!! thinking wow this looks so kool, until i couldn't see the laser i freaked ran to my mom we went to the hospital and long story short i can still see from my right eye but i have a black spot that will NEVER GO AWAY...i wish youtube was a thing when i was growing up i might still have full vision today :(
I did the same thing but thankfully the batteries included with the laser pointer we're almost dead and my eye was ok
I of course don't recommend anyone using high powered lasers without appropriate safety gear but... really, if you have and use the lasers because you think the colors and beams are beautiful (like I do), and not for scientific/medical reasons, laser safety glasses take out all the fun and beauty since they literally take away the color you use the laser for in the first place xD don't tell me you always wear safety glasses when using a nice green laser to see its beam in mid air
Please give a link for your safety laser glasses
Which safety goggle protected safely against the green laser with the rest of IR radiation? Which safety glasses can you recommend for this kind of green laser?
This is not an obvious problem. Some beams are literally invisible.
And here I was happy with my cheap but bright green laser made of premium grade chinesium. I wasn't even aware of this issue before your videos. Gonna get me one of these detector cards now. And possibly IR protection goggles...
Hi Braniac, what are the good infrared glasses you have and what was the IR detection cars ?
hey Brainnica i can also see IR... and yes it's a red light!! i test on my TV remote and IR optical mouse (mouse IR is very powerful, its big red glow)
Hey there - time traveling back from Nov. 2022 - Thanks for this video. There are a TON of videos on how to make penlight burning lasers - but practically none on safety. I was already subscribed, but I wanted to appreciate your cautions. I'm embarking on a laser project myself and I need a good safety course. While this video isn't a "safety course" - it *did* expose a hazard I'd never heard of. Thanks again and continued success!
Hi. Can you please tell me the name of those expensive Honeywell glasses and where did you get them ?
I'm planning to add 5000mW laser to my 3d printer for engraving so the basic ones probably won't do :)
Thanks !
Did you ever find out the name or where to get them. Honeywell website is pretty bad right now.
@@ImHibby No. In the end I bought Eagle Pair EP-1 from Laserlands website. Should be good for 190nm-540nm & 800nm-1700nm
another place where people ignore infrared dangers is when dealing with very high intensity flames
like from torches used to weld steel and such oxy acetylen torches literally can cook your eyeballs with infrared
yet most people dont use proper infrared safety glasses
Sensational video. Thank you very much. I received a green laser, much like the one in your video with the pocket clasp, when I purchased a telescope. I liked (until now) using it in the dark like a Jedi Lightsaber. I can guarantee its a cheap and nasty one. Doesn't look like I'll be playing swords in the dark again with it now.
Definitely don’t do that outside! You might accidentally laser an aircraft!
@@mistyaqua Yeah mate,. I know right. I had no idea until I watched this channel.
most of these lasers on ebay claim they are powerful enough to burn, so clearly no IR filter, same goes with many red lasers too. Have to be careful not to shine on anything reflective!
Soooo whatz the name and model of those honeywell glasses? Glad i watched this now. Ive had a green Laser 303 for about a year.
Ah so thats why my green laser pointer stopped working (or so i thought) when taking it outside when it was freezing. I used to own one of these green lasers back when i was 11. I just naively believed the 5mW rating on the lable. Little did i know they were so dangerous. I now feel very lucky that i didnt end up with any eye damage from it
Yes, the KTP-crystal inside a green laser does not like freezing temperatures (they can be optimized to run at 20-25 or even 70 degrees Celsius as I remember it). A freezing cold KTP-crystal is far from its optimal performance... Thanks for watching!
After watching your videos I've stopped using my lasers. Where can I buy safety glasses for various lasers?
The point of the video is not to stop people from using lasers - just be more aware of a hidden safety issue like you. I bought the good safety glasses from Edmund Optics. Thanks for watching!
I know, but I'm not gonna use them as long as they are a serious hazard
Hi
Been binge watching your videos lately. They're awesome.
Can you tell me the model of the Honeywell glasses at 7:13?
Also, do you know of similarly good quality pair of safety glasses for UV light? I want to filter out the UV, but still see the fluorescence from various materials.
Thanks.
Uv is pretty easy to block afaik polycarbonate safety glasses can block
In case of most UV LEDs (UVA and UVB LEDs) they dont emit a lot of it so you don't have to worry about it.
Thank you for making this follow up video answering our questions!
You probably saved my eyes I was planning on pointing out stars with one of these to my daughter this summer since she's old enough to be interested in stargazing now. Thank you!
Laser in eye bad.
^^ THANKS... SUPERRRRRRRRRRR............!
If you check actual CIE standard color matching functions (or the derived spectral sensitivities of the human visual system) you see they are defined from 360 nm to 830 nm. 808 nm is definitely not in the IR range.
If you take a closer look at the separate responses for the cones at 808 nm (close to your example) you see that the long wavelength cones (red) have a stronger response of 0.000585 % than the mid wavelength cones (green) with 0.000211 %. The color matching function of the “green” cones is a stand-in for overall lightness response.
An important thing to notice is that the percentages don’t reflect the actually perceived lightness because the peception is logarithmic. And on top of that, the highly coherent light of a laser creates a much stronger response than the incoherent light we experience in nature.
where do you get the good glasses?
Harmonics. I think this is the reason you can see various UV frequencies, and why we see them as "purple". I'm probably totally wrong but I've held this theory since I was a kid.
Unsubscribed for the dumb clickbait-y title and thumbnail.
Hm. You're gonna miss a lot of great videos then. Bye bye.
I like buying expensive stuff
Just saying thanks; I thought I knew laser safety well enough...until I saw your videos. It reminds me of the reasoning behind "trust, but verify".
Yay! While I do enjoy the videos on other topics, I was thinking during this one how much I would enjoy some more videos about elements. Looking forward to the next video!
Thank you! I need to get an upgrade for my safety glasses while I'm working with my fine calibration measuring equipment, just to stay on the safe side. I really appreciate the heads up.
Hello Brian:
There’s a new season of Skinwalker Ranch. They have a multiple laser light test & a green laser that has a gap and the experimenters are looking for an explanation.
Can you check what they are doing & maybe come up with an explanation?
Season 5 of The Secret of Skinwalker Ranch.
I’m just a curious viewer. Earlier seasons did have a splitting and bending laser, but that can be explained. The gap is a puzzle-but the infrared transmittal seems promising.
Thank you!
So, if we humans have weak sensitivity to
Man I love seeing when you get sponsorships, because it makes you do more videos and you get moneys!!!!
Hi, I'm interested to buy a couple of non visible infrared lasers to play around with infrared photography. I was wondering if you could (a) share the places/links you purchased the lasers (b) recommend something that I could use to diffuse or scatter the resulting beam so that it spreads out rather than becomes focused at one tiny point?
So this for gaming
Great video. I have really enjoyed your laser experiments.
Could someone explain how can near IR melt plastic like that if it is less energy-dense than visible light, which does not exhibit this behaviour?
I imagine it's because it's a lot more IR light than what you normally see in the visible spectrum. I'm not 100% sure about that, if someone know more, it's be nice to know,
IR is also heat.
The individual photons have a tiny little bit less energy. Doesn't matter if there are enough photons.
Thank you.that was very enlightening :))
Excellent video. Thank you. Is there a practical way to aim a 980nm laser, like a pair of glasses that make ithe dot visible?
So what label should I look for on protective glasses ? They nearly all claim they block out 99 % UVA and UVB . I need them for stoking a wood fired kiln and just use sunglasses at the moment . Thanks for the video .
Use an old professional camcorder with a 3CCD or 3CMOS mark. Those will reproduce near IR colors exactly like human eyes, due to the character of prism color splitting.
YAY! another great video from our viking friend!
I used to look directly into lasers as a dumb kid... I have bad eyesight now
True story
I ever, but for about 0.1second
i looked into weak red lasers not really an issue
If someone were to point one of those lasers with the completely invisible infra-red at you, do you sense anything? see anything? phosphenes? part of your vision just goes black or blurry?
It's a scary thought that something you can't even have a reflex to can damage your eyes
When you run your finger around a wet wine glass to make it hum, the closer you get to the correct speed and pressure the louder and more pronounced the note becomes, but it will still hum a little even if you aren't rubbing it with the right speed/pressure. Same with your eyes. Your eyes are not tuned to see near infrared but your red cones are close enough that if there is enough energy in the near infrared spectrum it can create enough 'noise' in the red spectrum for your eyes to pick it up.
Same with the mosquito cell phone sound (remember that?) the high pitch whine that only kids can hear? Im 30 and i can still hear it BUT only if i know it is there and im focusing on it. Its technically out of my hearing range and it doesn't sound like a sound, its more of a feeling that there is a sound.
Side note, why are some lasers dots and some lines? what are they doing inside the laser to get the shame to change and why a thin rectangle?
Are there any laws regarding owning or handling lasers in Denmark? In Sweden you would not be allowed to own or handle any laser above 1mW without a permit and a valid reason to get the permit.
I work with testing lasers that have been confiscated by the police in Sweden and I can confirm that almost all green lasers have infrared components. Almost all lasers confiscated are of the cheap variety. The power of the infrared components are usually lower than the green part though. Often the 808nm part is the weakest at 0,1-2 mW perhaps while the 1064 nm part can be anything from a few mW to closer to 100mW depending on the overall power of the laser. I've seen lasers where the green part was fairly weak at less than 10mW while the 1064 nm from the same laser was around 80-90 mW so a big difference is perceived power compared to actual power.
Another things is that the power labeling on cheap green laser pointers is completely unreliable. It's almost as if they simply take stickers at random and place them on the lasers without matching it to the actual power at all. This goes both ways with lasers labeled with 5mW being much stronger and also lasers labeled at 10000 mW being much much weaker.
5:04 That's some good fumbling.
everyone can see infrared.
to see it, you put a piece of steel out in the sun on a very hot summer day.
Angle iron is the cheapest and you can use it for something down the road.
When I saw it, the temp was 105 in southwest michigan. I looked at it, then looked away and there was an after image in my eyesight.
You can see it. It probably does do harm to your eyesight. So I wouldn't obsess over it.
I can use laser in my right eye for long period .
I have no vision in right eye btw
Now the question is how many of the Cheap Made in China Christmas and Halloween laser projectors leak IR.
i have a class 3 b green laser 500mw which was cheap on amazon
after watching your videos i realised it is extreme junk quality
I have a modified phone which can see infrared lights and holy shit that green laser leaks infrared light in all directions totally not safe
Test UV I know people without lenses can see it such as my great-grandmother and money. But it would be cool to test though UV lasers are hard to come by also UVC is naaaasty
I love it when people who sound like they're eating yogurt when they talk also stick their microphone directly inside their mouths.
Where can I get the glasses that WORK? Define them. Tell me where I can buy them.
I recently saw a video explaining how a green laser can produce a dangerous beam in a cold environment.
How do you set up a inferred hunting camera so the animal can not see the inferred light. Thank you
wish they sold those for 10200 co2 lasers... love to test if my 40 dollar goggles work..
Tiz an expensive lil sensor card 200 bucks to detect light
A link for your glasses would be greatly appreciated
you can see the 980nm laser if you are in the dark and your eyes adjust. it actually looks green
What safety eye glasses you recommend for infrared light?
I’m on shrooms and the laser warning almost gave me a panic attack like lasers were gonna come out of nowhere and eat me
has anyone else noticed that the song in the into is from SCP Illustrations..?
What are the last glasses 🤓 called . Looking for that one to purchase
That was legitimately one of the most educational - if not most informative - videos I have ever seen. There's so much informational garbage all around the internet, the stray useless facts that only select few can apply to anything. This, however, sold me on proper safety technique in under 10 minutes.
Burning through plastic with the same laser that you show being nigh invisible and filter piercing is a powerful display.