How to see invisible UV Light - Easy At-Home Science
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- Опубликовано: 2 янв 2014
- Think this is just a clear peace of glass? Think again! Today Tech Adams shows us how to see the effects of an ultraviolet filter, even though we can't see UV Light!
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This is the exact opposite of what I was looking for
Yeah.
Yup
Same.
I know it's been a while since this was posted but can anyone point me in the right direction for the answer we are all looking for? Google is no help at all
@@ahorseofficial The only solution for this I could find is an expensive af UV camera. Which sucks. I want a filter like this that only allows UV light to pass through it while converting it into a visible light. The problem is that for conversion we need a UV sensor and computers to convert the UV image to visible light so that i can see where are the UV sources in a closed room.
The video should be called "How NOT to see invisible UV light".
I was looking to make glasses that transform UV light into violet or blue (or any other visible color) so that I could actually perceive or see UV radiation.
I wasn't looking for how to check if sunglasses are fake or if the paint is fluorescent.
That was my take as well
Why is the title of this video "How to see invisible UV Light"? You haven't shown how to see the light, you've shown how to block it.
misleading
Exactly - It was a crappy video
Drew Ward -- lols true!!
See IR torch's reflection in the table. There you go.
Not misleading- If you can block it you can show evidence that it is there- thus you can "see" it within the concept of scientific thinking.
@@Harlem55 actually its just remove the glow(something we can see) because it filters out uv and it cant react. . .idiot
you dont see the light, you see what it does to the ink
“Welcome kids. Today I show u how to NOT see da invisible light.“
This was How to "NOT" see invisible UV Light ,,, dhaaaa.
how NOT to see ultraviolet light
@Sienna Mahon This video shows how to block UV light, not see it.
is there is anyway we could make UV and IR visible instead of hiding it?
This is a tutorial on how not to se uv light.
Now is there a reversed filter were all visible light gets absorbed by the filter while all the ultraviolet light can go through?
The movie "They Live" based on UV seeing sunglasses
This video title is misleading.
Good day can I ask kindly if I should use ultraviolet or infrared flashlight to see the an invisible light?
#TechLaboratories you just showed us how to "not see" UV light.... really?!?!
How much UV and ir can cause damage to our eyes? Since phones and street cams are using it daily how does that affect our eyes in the long term?
I got eye damage recently because of street cam how to measure and proof that using high beam ir can cause damage? I got diagnosed with retina burn and that was due to looking at solar eclipse which there was none and never happened and the second guess is LASER which happened that I looked directly at the ir flood beam which I was clueless about.and mind you you won't feel a thing at the time the next day you will get symptoms like red eyes and opacity.
do you know where to get a UV light detector?
Hi, i would like to chęci if my mask realy stops UVA light, how can I check if UVA is not visible? I had a skin cancer in the past and I would like to try wearing Just plastic mask over my face instead tthick layer of sunscreens
Great short and to the point video! Thanks for not dragging it out for 10:01 minutes.
Everyone report this video for being misleading. Lets fight back against clickbait!
Phantom Kid i reported this.
I very rarely give thumb s down, but this video doesn't match title...
Well considering it's impossible to actually see ultra violet..
I want to see all sources of UV lights in my room while blocking all normal visible light. The filter should convert UV light into visible light.
This is genius!!! I was trying to figure out if home light therapy light is pure without harmful UV.....
Is it possible to have a UV light that doesn't shine in the visible spectrum? But things that glow under a black light would still glow?
Certain materials "bounce" the light back at a different wavelength. It has to do with excited electrons falling down an energy level, which in turn releases some of that energy in the form of light (which is how most reflections and light sources work. The important difference here is that it "transforms" other forms of light into one in the visible spectrum).
Hi, i've tried to reproduce this, just for fun, with ordinary highlighters (6 different brand and color), 3 different brand of UV filters (even stacked them together) and sunglass lenses too, with different type of lights (450nm laser, 395-400nm LED, UV-CFL way below 390nm), but to my biggest surprise there was no significant difference in brightness (some colors exhibit a little difference, but not nearly as much as in your video). If I have aroused your curiosity too, I can send some test pictures. I also experimented with phosphorescent paper in the past and the UV filter had little effect there either. The composition of the highlighter may be different, my cheap UV filters are fake, your lamp is special in some way, or what?
thank you for showing how to detect uv light
esta bueno para saber que lentes absorben los rayos uv y cuales no
whats the symphony used here???
Using fluorescence to check if an UV lamp works, nice idea.
glasses to see uv light? Show us that
That's what I want TETRACROMACY BABY who in the hell want's uv protection when they could have that.
KNOW WERE I COULD GET SOME?
Is this even ultraviolet? I get confused because I know we can't see uv. However things marked as UV we see purple and blue. Or at least I do and this is why I'm looking it up. However IR Infrared light is completely invisible unless an it lense or phone camera is used. This is why I am confused because I try looking it up. I do see light from a UV flashlight (not the UV light) but people say uv lights are invisible. So is he using a UV light or an IR light? And it's there true UV or false UV light being marketed as "UV lights" but they are just violet and blue LEDs? Seems like you can't get a straight answer
I'm a welder so protection from UV is fairly high on my list of important shit...
My dad had to get cataract surgery, and now he can see uv light.
+Brandon Johnson What does he see it as? Does it look like nothing before?
Iam Cleaver He said everything has sort of a purple tint, but he said it's pretty hard to explain :P
***** Just out of interest, does the sun look blue-shifted to him?
I mean does it look more blue/white than normal?
Iam Cleaver He said it does some
Does he still see UV light as strong as he used to?
I have LED lights in my room and i looked at the UV light and pressed the buttons and i could see clearly but vaguely the uv light
So why do UV filters exist? i mean they are removing non visible spectrum??
+wilgarcia1 UV is invisible to the eye, but not invisible to cameras. UV adds a bluish haze to the darks at a distance when photographing landscapes, and contributes to washing out the image when shooting in misty, hazy or partially foggy conditions, because of how it's scattered. UV filters eliminate that hazy look while still being optically clear in the visible spectrum.
Their clarity also allows photographers to simply leave them on their lenses when shooting as a way of protecting the more expensive lens elements - if a small rock or dust lands on the front element it will be the inexpensive (relatively) UV filter rather than the shaped and very expensive large front lens element. I have a couple of lenses that I just keep them on when I'm out shooting (not when I'm indoors mind you).
would this trick work to see if a UV lamp, that is used in a water filter for a pond, still works?
Oliver Roels No - you can see if the lamp is still emitting UV light, but "working" for killing bacteria is different than just producing UV - there's an intensity thing that you can't measure just by seeing it.
+TechLaboratories why didn't you make all your vids like the SR71 blackbird video?
that was the greatest explaination of anything I've ever seen and expected your other vidso to fall within that same standard
Anthony Abelardo The J58 video took 4 months of 9 hour days worth of research, filming, and animation. I was able to do it when I was unemployed, and yes, I'm quite proud of it. But it's unrealistic to do that for every video when I'm now working full time (or even if I were working on RUclips full-time) - I'd be releasing a video every 4 months to a year: not a great business plan. Sometimes you have to make the decision to sacrifice a degree of quality for consistency and the ability to actually make a living.
Also, this particular video, if you notice, is older than the Blackbird videos - I've grown since then, though I elect to keep my older videos up, even if I'm not entirely proud of how they turned out, because I still believe they have value.
TechLaboratories with the perspective you have, a team would make production easy
Anthony Abelardo A team would also cost a lot of money, which I don't have. Maybe in the future, when I have millions of subscribers instead of tens of thousands.
what is the bgm called
or get a TV remote and a camera point the camera at the front of the TV remote and press a button and u can see a beam that u cant see with a normal eye
UV is not exactly invisible. I can see extreme UV it is a dim greenish color. I can absolutely see UVa it is a whitish color just past violet. I do not see deep reds correctly they look black to me.
Thanks for the interesting video. I’ve been trying to figure out how to test my theory of UV light for materials used in fishing lures and this is exactly what I was looking for. A simple idea that works , what else could you ask for 👍
how can i tell if my AMOLED phone emits UV? without buying a expensive UV detector. i am mainly interested because of VR (virtual reality)
+colin schabel Simple answer: it doesn't - AMOLEDs are color-tuned subpixels with very tight wavelengths emitted near the primary values of Red, Green and Blue - it's not like a fluorescent backed LCD which can, technically, emit a small amount of UV - but so little that it's not even worth considering.
If you really wanted to, you can build a legitimate UV detector by using a visible light filter placed on a DSLR and doing a long exposure of your subject.
I was hoping something about how to see UV light without a UV bulb. Not, how to not see it with a lense. Anyway, interesting video.
I was kinda hoping to see a new color at the end of this video :P, is that even possible though?
People who have their lenses removed from their eyes (and replaced with synthetic) sometimes find the ability to see into the UV spectrum
Yes, but UV light is seen as white. I wonder if that is because the wavelength is small enough that it triggers everything, making it appear white.
I think i can see like 3 nm out of the max. normal human spectrum, so i can see UV light, but it's extremely faint to me.
This is to how NOT to see UV light...
Good project
How about even stronger lights, X-Ray or Gamma Ray?
+FortNikitaBullion There are ways of detecting them - phosphors & photographic films will react with x-rays and gamma rays, but you have to exclude other sources, otherwise they're drowned out (if you're trying to see the general cosmic background radiation) and if you're generating them in a lab, well, they they become really dangerous because they're ionizing radiation that can penetrate your skin and do damage to your body (which is why you wear a lead vest when getting an x-ray at the dentist) I actually have a source that will produce low-level X-rays, but I don't use it except when I'm demonstrating a specific scientific purpose (I don't just leave it "on", even though it looks really cool...)
I read online that children and young adults can see some near-ultraviolet light in certain conditions. Can anyone tell me those conditions?
Ultra violet light has a wave length of 400nm (nano meters) to about 10nm, the lower frequency of 400nm is just on the edge of visible light in the violet colour range. new young eyes are more sensitive and can see this end of the spectrum.
It's just like younger ears can hear higher frequencies. 400nm in the uv spectrum is known as UV-A the least harmful end of the spectrum, hope this helps
Dean Hunt Yeah thanks, is there anyway I can tell if I can see it? If so how?
if you could see it then you would not really know, it would possibly look like a very light shade of violet, so you would really not be able to know unless you have a known frequency output and an array of uv filters.
Dean Hunt Does that mean younger people can see adult's sunspots? and adults cannot see eachother's sunspots... interesting
How can you ever describe what shade of a colour you are seeing, you could both see the objects but with slight shade difference.
Bro got the Tlauncher photo
That's lenses read to invisible inks mark
what uv? uva, uvb, uvc?
does this work for welding
Welding goggles do have UV coating, but more important to protecting the eye there is the intensity of light. Staring into the welding spot is like looking into the sun - bad idea, primarily because of the brightness! Side note - that's why you can use high quality, sufficiently dark, welding goggles as solar observation glasses!
Treemaster16 Yeah, you can also weld UV light with this filter, but be careful not to cross the streams.
This doesn't show how to see invisible UV light. It shows how to absorb UV light which is already invisible to the eye. Your title makes it sound like you were going to show a method for seeing the actual UV light.
Anyone with any sense knows that would be impossible.
Thank you; good demonstration and presentation. Liked very much.
please make a ir cut filter
+amir aghamohamadi IR cut filters need very specific thicknesses, and can't be easily made by hand (like, without devices costing hundreds of thousands of dollars to get precise grinds...) Thanks for the idea though!
The title should be: how to block invisible uv light!
And BTW, they are not called phosphor pigments but Fluorescent pigments!!!
What if someone can see in UV light
Ultraviolet Lasers will make glow in the dark things glow.
The incompetence of the human race never ceases to amaze me. Anyone can BS there ignorance on the NET.
this is the opposite of what i wanted
LMAO phosfurs. Is it a new fur coat?
here's what you came for: GLO... NO GLO.... GLO. ...NO GLO
can we make a machine that make us see the ultraviolet light while our eyes cant see it !!??
Yes. Many light enhancing night vision goggles and cameras can see UV
Are there laser goggles that can see invisible lasers?
Title is a little misleading. You're not showing people how to see UV light. A good experiment to "see" UV light is to use something as simple as your phones camera. Point at the TV remote and fire away. You will see the UV light. This video shows you how to remove UV light. Not see it.
Actually, what your camera is seeing is infrared, at the other end of the light spectrum, from the IR diode in the remote control. Here what you're actually seeing is the direct secondary effects of UV light caused by the phosphorescence of the highlighter, which is reacting the same way that a camera can detect IR light: sensitivity outside human vision. Seeing through your camera or looking at a UV or IR photograph is still only looking at the secondary effects of UV or IR light, brought into the visible spectrum through film or digital processing.
TechLaboratories Thanks for the response! You are right. I had the two confused!
And thank you for watching! I appreciate the support!
littlec916 Hi guys. Is there a precise I.R light beam that you could shoot off - but only see it with certain filters (glasses perhaps?) but it would also not appear on film or video i.e: it's only be visible to the person wearing the glasses?
UBER KINGS one that can be strong enough to see day or night - but safe enough to project onto human skin?
that's cool but how to see invisible UV light?
I thought this was an instructable on making ultraviolet shit visible to the human eye :-/
Shove it, Adam
Glass stops UV. I hope you didn't pay for that filter.
why don't people use this at the beach so they don't get sunburned
UV Filters require thin film coatings, which don't work on human skin and are toxic. But your car windows typically have a UV coating so you don't get sunburned in the car.
First you say its invisible, then you try to see it. Make up your mind.
u can't see light it self, just what gets lighten
Detect is the better word. But I'm too lazy to change it.
wrong title bro!!!
More like how to NEVER see ultraviolet light.
This video's answer to "How to see invisible UV light" . . . use a UV flashlight. SMH
! ! !
#ultravioletfilter
#ultravioletpath
THANK YOU SO MUCH, DEAR WEB FRIEND!!!
Good video, very important to check for uv protection in sun glasses.
The pupil will open up when wearing sun glasses to let in more light and if not protected then you will also let in more UV too.
Never buy cheep untested glasses. Great Test.
Why does this have 750 dislikes
Piece, mate. Not peace.
You should try contacting Vsauce to get something going with them, because this is awesome! :-)
I would love to work with Michael, Kevin, or Jake; I think their channels are fantastic! Thank you for the complement! I sincerely appreciate it!
Fake media :0)
This is a nonsense title. Thanks for nothing.
This is absolutely attrocious, reported
PS you can see UV light dislike!
Wut? No you can't. Did you watch the video?
Shine UV light in your eyes. You can't see it.
UV reactive materials use UV light as a power source to emit an intense amount of visible "normal" light. That's what you're seeing.
You can have a procedure which removes the lense on the outer layer of your eyes which stops humans seeing uv light and removing the lense allows you to see it :D
tard...
🌈🦋The ophthalmologist told me that UV light causes EYE cancer. Make sure that your eyeglasses or sunglasses have UV protection just to make sure, it's more expensive but it's worth it to save your eyes. God bless-😎
So many people are misled over UV light, imo the phosphors in your highlighter were reflecting the light being shone from your torch whereas the black card/paper absorbed the light. The filter you used just took out the 'colour' from the light, thereby preventing the phosphors from reflecting the light. Makes one wonder whether UV radiation is one big scam.
Then why didn't the filter take the 'colour' out of the light being reflected from the phosphors at 1:08? Use your brain.
@@VidkunQL sorry i should have typed on my original comment the filter merely prevents the phosphors from reflecting the light!!! That's better!!
@@PeterPete That's no improvement.
Tech Adams claims that the filter blocks UV and passes visible light, and that when UV hits the phosphors, the phosphors emit visible light. This makes sense, and fits the observations.
You claim that the torch emits visible light, including a band we might call 'yellow', that the phosphors merely reflect yellow, and the filter... does _what?_ Does it block yellow? Does it do something _other than_ block some wavelengths of light?
@@VidkunQL quote - You claim that the torch emits visible light,
where did that come from? I never stated that in my comments so you must have made that up!
Btw just for clarification with regard to the video what do you actually mean by the word light?
@@PeterPete You wrote _"the phosphors in your highlighter were reflecting the light being shone from your torch"_ and now you're evading like hell.
Enough. You know you're wrong, and you'd rather argue forever than admit it.
i just love hot nerds... tech adams, you're welcome at my house any day ;-p
Video is nice, but it does not talk about the TITLE