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.

@StuartHollingsead

Жыл бұрын

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.

I wish I had seen this before I started playing with my green laser.

@Elyon074

5 жыл бұрын

Yep me too

@Serjgap

5 жыл бұрын

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)

@Oscar4u69

5 жыл бұрын

F

@VanillaLibrarian

5 жыл бұрын

@@Serjgap How did you end up with a laserpointer at 6 years old without anyone warning you against doing something as blatant as that?

@Serjgap

5 жыл бұрын

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

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!

So bottom line is lasers and ignorance don't mix well. Thanks for the education.

@jaewok5G

3 жыл бұрын

ignorance is a natural selection accelerant as gasoline is to fire

@spary833

3 жыл бұрын

yes

@Valkrss

3 жыл бұрын

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.

Yes I did lick the video.

@FeatheredGryphon

5 жыл бұрын

www.deviantart.com/kuroseishin/art/Animation-Shannrosh-327239281

@tf3confirmedbuthv54

4 жыл бұрын

FeatheredGryphon sinner

@missingno2401

4 жыл бұрын

how it taste

@redbabbler

3 жыл бұрын

How does it taste like

@InfinityGamingIMG

2 жыл бұрын

So did i

Thanks for mentioning reflective glass surfaces. That’s how my vision damage occurred.

@someone8944

2 жыл бұрын

F

@ockertoustesizem1234

6 ай бұрын

F

When you dive deep into it you realize that lasers are much more dangerous than expected

Warning: do not look directly into laser beam with remaining eye. An old one, but worth repeating.

@skeetabomb

3 жыл бұрын

hahaha!

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!

7:58 "Eye feel good" I'll see myself out...

@avi8aviate

5 жыл бұрын

MEYEself?

Hooray another great Brainiac video😃😃😀😀

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.

Great show oh dangers of careless usage of lasers. Great work.👍

I accidentally shined a

@schnizzyfizz7832

4 ай бұрын

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!

@maj113

5 жыл бұрын

Lol so right

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.

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.

Thank you for making this follow up video answering our questions!

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.

@brainiac75

5 жыл бұрын

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 :)

@Shonade_Malik

Жыл бұрын

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.*

This totally helps me on what safety glass to look up for to safely handle lasers, your videos are so educational that I honestly admit I'm learning some details I didn't know about lasers.

It's good that you make these kind of videos (the laser IR one and ect.) It really shows you that you have to be very careful around lasers. Really, now I am scared of some strong ones that I used without any fear before I discovered your channel 2 years ago.

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!

Now I start to feel paranoid and want a pair of safety glasses on me everyday now .-.

I love these safety videos

This is amazing. I never knew all of this!

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!

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.

Another nicely done video. Can't wait for the next one!

That's the best side of the KZread videos.. Sometimes there's a "pearl" like your channel is. Informative, concise and technical enough for the vast majority of uneducated people like me. Wish I'd found your channel before start playing with my green laser. Luckily for me I didn't inflected a self burnt retina! Excellent channel!!!

Another awesome and very informative video.

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!

Great video. I have really enjoyed your laser experiments.

Thank you for your work in educating us. I am always trying to improve my understanding with laser safety.

Just found brainiac a week ago. been binge watching. Love his voice. It makes me calm. think I may move to Denmark.

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.

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...

Your channell is and has always been smartly entertaining. Keep up with your great work!

Thank you so much for the information Brian!

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.

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!

Excellent and enlightening, great informative video thank you.

Thanks for the valuable info! Terrific video 👍🏻

Awesome video. Well explained

This video should be more highly valued. It is a GREAT representation of possible potential. Thank you so much for this! Maybe you can do a video about visible lasers, ir lasers, and black light lasers through all sorts of types of lenses. Maybe use some clear colored plastics and maybe even regular glasses at different focal lengths. You can pick up some cheap lenses at a local Walmart.

Man I love seeing when you get sponsorships, because it makes you do more videos and you get moneys!!!!

Very interesting, great video!

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".

Nice bloopers at the end...can't wait for the next video!

Thank you.that was very enlightening :))

Extremely cool video

Thank you very much for these warnings, I casually use my 200mw green lasers and at times without safety glasses, now I wonder!

All I ask is how and your are a GENIUS

thank you, surprising & important

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

Well done.

Brilliant braniac 👌

Awesome video as always.🍻🔬🔭🐒

Excellent thank you

The color you showed with the undervolted red laser is also how I see 808nm. One of my green lasers if I remove the head you can clearly see a red line from the 808 beam going through the crystal. I should try to photograph it some time. Also thank you for showing you why buying quality, properly certified laser safety glasses from a reliable company is so important. There's a reason I've spent a couple hundred bucks on them and your demo clearly shows why (and also why IR lasers scare the hell out of me!).

@brainiac75

5 жыл бұрын

Glad you recognized the 808 nm replication. I'm not sure everyone perceives these exotic wavelength in the same way :) Yep, IR-lasers is what drove me to buy the expensive glasses. Now, I'll never use the cheap ones again. Thanks for watching!

i love these videos i was so happy when i saw this one pop up

This is awesome thank you for making it Do you have one for uvc glasses?

Another great video

I learn a lot from u man Thank u !!! 😃

Very important video!

Okay, what was I doing three weeks ago when you uploaded a video? Also, 7:55 Woah, so dangerous yet amazingly looking!

@brainiac75

5 жыл бұрын

Hard to tell, but it seems KZread failed at notifying you of that upload? Not exactly a first... Thanks for watching :)

Fantastic video as usual! You should narrate a documentary 😁

Thank you.

Nice Vid , as Always :)

Keep it up!

NICE CREDITS !

YAY! another great video from our viking friend!

Great video! Goggles are necessary for work that needs to face lasers. I bought renhotecic brand goggles not long ago because I needed them, and they feel very good after use. If you are going to face laser work, it is recommended that you prepare goggles.

5:04 That's some good fumbling.

Nice animation in the credits, thank you. :)

@brainiac75

5 жыл бұрын

Glad you like it :) Don't want to disappoint my patrons :D

GREAT VIDEO!!!

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.

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?

Nice vid

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.

@mistyaqua

2 жыл бұрын

Definitely don’t do that outside! You might accidentally laser an aircraft!

@ironmaiden5658

2 жыл бұрын

@@mistyaqua Yeah mate,. I know right. I had no idea until I watched this channel.

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.

@hardnachopuppy

2 жыл бұрын

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.

I love your channel so much! Can you please do a vid with magnets and lasers?

@brainiac75

5 жыл бұрын

Thanks :) Not sure how I should combine magnets and lasers in an interesting way. They don't affect each other...

@Nyxiality

5 жыл бұрын

Brainiac75 you could do something like a CRT display... maybe like a directing beam? Or lasers and Radioactive elements!

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).

@Sharpless2

5 жыл бұрын

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?

@GRBtutorials

5 жыл бұрын

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.

@definesigint2823

5 жыл бұрын

IR security cameras with the ring of LEDs around the lens are pretty obvious to me.

@GRBtutorials

5 жыл бұрын

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.

@Sharpless2

5 жыл бұрын

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.

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

@brainiac75

5 жыл бұрын

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!

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.

Hi Braniac, what are the good infrared glasses you have and what was the IR detection cars ?

Thanks for the video. I was unaware of all the risks of that lasers. Also, I always wondered why I could see the IR lights used on surveillance cameras, I thought it could be a little of red wavelength being emitted from the LED or could be the curve of the eye sensitivity, turns out it is the latter. Perhaps this sensitivity could vary a little from person to person just like the hearing does?

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.

So is infrared harmful? You didn't mention it wisely or i couldn't catch it and is it the infrared or the laser that burns our retina? Thanks for yhis enlightening video

It would be interesting to know what blocks very short wavelengths like UVC given off by arc flash or sterilizing bulbs. In theory most plastics and glass should block it but it's hard to find concrete information.

Hi there Brainiac ! I do have a 532nm , 50mW green laser from Emax lasers. what kind of protection do i need i am talking about eye ware and infrared lenses ? thank you very much !!!

Thank you, that was very informative. But you've got me properly scared of high power lasers, so I won't be getting into that field myself anytime soon. BTW: How many mW does a usual laser from a CD, DVD or BD drive (or burner) normally have? Is their power already in the dangerous region?

@brainiac75

5 жыл бұрын

High-power lasers can be handled safely. Just need some preparation and knowledge :) The lasers in any device that can burn data to a disc is quite potent. Definitely an eye-hazard if they are taken out of the 'burner' and turned into a laser pointer. You can find several example videos here on YT. Thanks for watching!

Nice!

can i get a suggestion on a good rechargeable green laser for astronomy? (in 100-200mW) thanks love the vid!

I licked the like button!

@brainiac75

5 жыл бұрын

Hehe, not sure was I was thinking of when I said that x) But thanks for the lick and always watching and commenting!

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.

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)

Excellent video. Thank you. Is there a practical way to aim a 980nm laser, like a pair of glasses that make ithe dot visible?

well it looks like all 3 of my green lasers probably leak IR. ive had them for a few years now and like to shine them in the sky and at a street sign across the road( I can see if cars are coming so I only do it when I'm sure its safe, also I'm out in the country so there are no houses even close to where I shine them) and other things in my room, but never look at the beam directly or too long at the area that I shine it on. I'm glad I watched this video so I can be even more safe with the lasers....thank u for watching out for us laser users

I can often sometimes see the powerful infrared LEDs used in infrared barriers of automatic gates and the proximity sensor when of my phone (when I unlock it I can see a faint red glow from near the camera, its a proximity sensor that detects if your phone is in your pocket and disables the touchscreen to prevent you from doing crap.) If I can see it means it's quite powerful. Or maybe IR leds leak some red?

Hello, thank you for the video. question, what can I use as a pointer when showing aircraft parts (as an instructor) sometimes on direct sunlight sometimes in the dark, distance no more than 20feet. I have a cheap green light, i can tell it is no good for the eyes! regards,