Does UV Light harm you?

wikipedia/google? these kind of questions really dont need a whole thread dedicated to them, answers can be gotten from simple searches on any decent search engine.

HmmM ... as far as I know, those UV tubes that we use for PC Modifications would'nt have bad effects against our health.
But for safe purpose ... do not really expose it directly for long duration
Just my humble opinion.

http://en.wikipedia.org/wiki/Ultraviolet

In short, yes and no. It's actually good or you in some ways, but bad in others.

Yes, yes, this is the best explanation to all the questions about UV CCFL...

No it won't harm you, just don't stare at it stupidly long time la like if you're staring at it more than 5 minutes...

i'm going to move this to the case mod section, you'd get better informed answers there.

thread moved.

logical but no doctor here ???? and why was the thread moved to here ler, i was expecting a doctor in the health category to answer my queries

Longwave UV such as what you have for displays for the public, is not bad
for you if the intensity is low. The type of UV intensity used in your
computer, and for displays that are properly done, is okay to use.

High intensity UV in the longwave band would be dangerous at close range,
and with long exposer, if the proper eye protection is not used. Medium and
Shortwave UV are the dangerous ones to be concerned about, even at the low
power intensities.

The UV lamps sold to the public that are for displays or to illuminate a
room for entertainment, should not be dangerous. Just like any other light,
you should not stare in to it for any duration of time.

UV radiation can be blocked to a great extent with ordinary glass. UV tubes
and bulbs are made from a quartz mineral material to allow them to radiate
the UV rays.

Acrylic type materials are very transparent to UV radiation, and require
specialized coatings to pass the UV rays. When you have eye glasses that are
what we call the plastic lenses, they have to be coated to protect the
wearer from the UV rays coming in to his or her eyes.

Reflected UV light is also dangerous, if the intensity is high enough.
Materials that are giving off illumination from the UV light will not be as
dangerous, if the illumination is in the proper band for safe viewing.

As for any UV light, the less we look at it, the better off we are. UV
exposer will lead to the greater risk of cataracts, and other eye problems
over the long duration.

wikipedia/google? these kind of questions really dont need a whole thread dedicated to them, answers can be gotten from simple searches on any decent search engine.

its harmless except when u are staring long time at it . if ur talking abt radiation like CRT monitors or PC radiation . Metal casings have better RF ( radio frequency ) shielding than those perspex case ( full transparent cases ).

if it harms, they couldn't be selling it easily... :

cellphones do cook our brains, but guess what, u & i are buying, using, complaining but still using.

i called it stupidity.

Does UV Light harm you?

This is a good example of ppl who dont deserve to be in forums.  First of all, I do lash out at mods sometimes (you're human im human, so what).  THIS is a forum, people ASKED something to get some ANSWERS, they might not be as HIGH TECH as you are (or may I call it "nerdy") to know there's a wikipedia or another search engine besides Yahoo's.

color� l (�)� f (*1014 Hz)� Energy (*10-19 J)
violet� 4000 to 4600� 7.5 to 6.5� 5.0 to 4.3
indigo� 4600 to 4750� 6.5 to 6.3� 4.3 to 4.2
blue� 4750 to 4900� 6.3 to 6.1� 4.2 to 4.1
green� 4900 to 5650� 6.1 to 5.3� 4.1 to 3.5
yellow� 5650 to 5750� 5.3 to 5.2� 3.5 to 3.45
orange� 5750 to 6000� 5.2 to 5.0� 3.45 to 3.3
red� 6000 to 8000� 5.0 to 3.7� 3.3 to 2.5

ultra violet carries the most energy in the 7 colours in the natural light.
means UV harm most. not sure bout the one in ur rig..heh

UV is not in the visible spectrum!! (not in natural light)
UV is higher frequency than in visible light(means shorter wavelegth, like you said). And yes, it can carry higher enegry per photon(~12eV)

brother, we are coming off topic again here.
UV is is between indigo-to-transparent, barely visible by naked eyes, natural light/ sun light does consist UV.

ahh...ryan, i dont have the intension of arguing about anything, i just wanna share my point of view to TS and other members.

it seems like you are criticizing most of my posts in this thread. and i would like apologize if im the one who make you feel that way.

microwave or macromave, visible or not visible spectrum is not related to this thread. anyway the subject is:
Does UV Light harm you?, the one they use for PC decoration.

and i would just stress my opinion for once more which i already did in previous post.
"any kind of light do harm to human, but only in different level.
if our body recovery rate is greater than the aging rate done by the light, than it wont be a concern.  "

cheers

Yessuh, the UV lights will harmxor your skin.  First your skin will feel itchy and hot.  Then after sometimes near ur CPU for like a few months, your skin will start rotting from the inside.  When your skin peel off, you'll see maggots in ur arms and ur bones with crack lines.  After that you'll need to amputate your arm.  The horror... the horror...

you sound like ur in big trouble . Someone around u just got skin cancer or what ?
no offence .

copied from another forum

This is a good example of ppl who dont deserve to be in forums.  First of all, I do lash out at mods sometimes (you're human im human, so what).  THIS is a forum, people ASKED something to get some ANSWERS, they might not be as HIGH TECH as you are (or may I call it "nerdy") to know there's a wikipedia or another search engine besides Yahoo's.

@Threadstarter:  The UV CCFL is black light, not like the true UV from the sun, so its harmless.  Besides its inside the case and most of the time people put the case on the floor next to the table or on the table where the biggest part that's flashed by the black light is your pinky.

There are many criteria that we have to consider to say, whether we going to have harm on our body, if we are exposed to Electromagnetic wave (eg UV) or not. Few of it are :-
a) wavelength
b) intensity of the wave
c) how long you been exposed
d) maybe, which part of you body is exposed

In (a) usually, the shorter the wavelength is more harmful for our human body, but you have to remember that it not necessarily, that the penetration is deep into our body.
(b) The more the intensity, the more energy the wave carries. The more energy it carries, its more hamful.
� Simply, more time exposed, more teruk la.
(d) We have some organs that not protected well, such as our skin.

So, no one can ever tell, in certain that UV from CCFL is harmful or not (maybe in general we can predict). Unless you refer to its manual(if got), or you do the measurement of (a), (b) and �.
Pls feel free to correct me if i am wrong. 

totally agree. i'm one of the victims of those mod wanabes too. not spamming here but i'm just showing my support to threadstarter that her post is meaningful.

Its not criticizing. We are in forum, we correct each others mistakes, thats all. We are just share information in here, arent we?.
Its no harm to talk about physics and other science subject, if the topic is related isnt it? hehe!
If the TS ask the question, "Does UV Light harm you?, the one they use for PC decoration." and we answer....."yes" (or "no") Then im sure TS also sien seeing our replies...hehe! 
Anyway, i guess we had made our points clear here.    I hope, we had shared some good information with others. 

Cheers to you mate! 

Am i correct to safely say that the UV CCFL that i install in my ride is safe to switch it on at night while i drive?

im using them around a year, and i havun die yet. good enuff kua da answer. it wun harm u dat badly i guess, else they wudnt be selling them.

im using them around a year, and i havun die yet. good enuff kua da answer. it wun harm u dat badly i guess, else they wudnt be selling them.