Re: Brilliant Picture in http://www.dslreports.com/forum/r19517647 en Tue, 15 Dec 2009 04:33:28 EDT Tue, 15 Dec 2009 04:33:28 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19585361 nitestop : :huh: Yes Believe me laser damage to the eyes SUCKS.
Any laser will Damage your eyes, certain types are much more severe. It's the colors you cant see that are real bad.]]> http://www.dslreports.com/forum/remark,19585361 Sat, 08 Dec 2007 05:01:26 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19534905 rosco : If those fibers were part of a fiber system, wouldn't they have some sort of jacketing?

Chill out raythompsontn.]]> http://www.dslreports.com/forum/remark,19534905 Thu, 29 Nov 2007 21:33:52 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19521046 raythompsontn :
said by Matt See Profile :

You sure you're not blinded by all that nuclear radiation in Oak Ridge?
Nah. But some could argue that I should glow in the dark just like the lady in the picture. Maybe not green but a nice shade of blue would be nice.]]> http://www.dslreports.com/forum/remark,19521046 Tue, 27 Nov 2007 20:32:54 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19520446 maxpower : Something tells me shes gonna be ok..Maybe shes performing Korean Lasik? When will we get PFTTH?]]> http://www.dslreports.com/forum/remark,19520446 Tue, 27 Nov 2007 19:04:57 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19518868 Matt :
said by raythompsontn See Profile :

said by hopeflicker See Profile :

relax, it's just a hunch :p
I guess my amusement did not convey well in the message. I was, shall we say, "blinded by the light."
You sure you're not blinded by all that nuclear radiation in Oak Ridge?

(My daughter lives in Knoxville, so I'm familiar with the area.)]]> http://www.dslreports.com/forum/remark,19518868 Tue, 27 Nov 2007 14:48:04 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19518862 raythompsontn :
said by hopeflicker See Profile :

relax, it's just a hunch :p
I guess my amusement did not convey well in the message. I was, shall we say, "blinded by the light."]]> http://www.dslreports.com/forum/remark,19518862 Tue, 27 Nov 2007 14:46:53 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19518419 hopeflicker :
said by raythompsontn See Profile :

Well, in this case you would be markedly wrong buttermilk breath.
relax, it's just a hunch :p
--
People pray to God because they're told to.]]> http://www.dslreports.com/forum/remark,19518419 Tue, 27 Nov 2007 13:33:22 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19518364 raythompsontn :
said by TheBoz :

If it was a laser would like you say it was would it not be a point of light and not a big patch of light on face. Its probally LEDs thats being used. IMHO
Oh, I suspect that you are correct. I would also speculate that even with LED illumination the spot on the face would not be that large. The image was probably photoshopped to enhance the effect.

Regardless, I still feel the image promotes a very unsafe practice. One should never look at the output of any fiber system, period. Even knowing the emitter source is no guarantee. You only have two eyes and they cannot be replaced.]]> http://www.dslreports.com/forum/remark,19518364 Tue, 27 Nov 2007 13:23:52 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19518343 raythompsontn :
said by NYR 56 See Profile :

Also, you have been proved wrong, admit it, instead of rambling on with more technical posts to cover yourself. If you think people are going to go blind over a picture on DSLR then you better hope they don't venture into the rest of the internet either.
No one has proven anything about being wrong. The photo is there. It clearly shows someone looking at the output of a fiber system. High speed, long distance fiber systems are driven by laser emitters, not LED emitters.

I provided links about the dangers of green lasers. If you think they are safe then continue to shine them in your eyes. It won't bother me.

As for going blind from a photo I think that was myth perpetuated by my parents when they found that Playboy magazine. :o]]> http://www.dslreports.com/forum/remark,19518343 Tue, 27 Nov 2007 13:19:34 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19517367 anon : If it was a laser would like you say it was would it not be a point of light and not a big patch of light on face. Its probally LEDs thats being used. IMHO]]> http://www.dslreports.com/forum/remark,19517367 Tue, 27 Nov 2007 13:16:32 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19518280 raythompsontn : Well, in this case you would be markedly wrong buttermilk breath.]]> http://www.dslreports.com/forum/remark,19518280 Tue, 27 Nov 2007 13:10:05 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19518109 hopeflicker :
said by NYR 56 See Profile :

I'm impressed hopeflicker and think you hit the nail on the head. Sounds just like him.

Striking, isn't it? :p

Never understood why people make more than 1 account on these sites. What do you have to hide :o
--
People pray to God because they're told to.
 
 
]]> http://www.dslreports.com/forum/remark,19518109 Tue, 27 Nov 2007 12:37:46 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19518065 NYR 56 : I'm impressed hopeflicker and think you hit the nail on the head. Sounds just like him.

Whoever you are, get a grip. It's obviously not a laser and if you know anything about lasers it wouldn't look like that picture. Also, you have been proved wrong, admit it, instead of rambling on with more technical posts to cover yourself. If you think people are going to go blind over a picture on DSLR then you better hope they don't venture into the rest of the internet either.]]> http://www.dslreports.com/forum/remark,19518065 Tue, 27 Nov 2007 12:30:40 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19518055 raythompsontn :
said by hopeflicker See Profile :

a striking resemblance of user: Signmeuptoo ,»/useremail/u/520600

hummm...
Not sure what you mean by that comment. Should I be wearing my tinfoil underwear or other such body armor? :D]]> http://www.dslreports.com/forum/remark,19518055 Tue, 27 Nov 2007 12:29:59 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19517928 hopeflicker :
said by raythompsontn See Profile :

said by viperlmw See Profile :

Ever heard of 'multimode'? It uses LEDs as the light soruce, for short, in building runs, and has a larger core. 'Singlemode' fiber uses lasers.
Yep. Keyword in all of this is distance. Floor to floor within a building is not much distance. Distance without losses requires closely matched components.
a striking resemblance of user: Signmeuptoo ,»/useremail/u/520600

hummm...
--
People pray to God because they're told to.]]> http://www.dslreports.com/forum/remark,19517928 Tue, 27 Nov 2007 12:10:03 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19517909 raythompsontn :
said by Telukin See Profile :

So article about fiber comms (that uses laser) coupled with a stock photo of someone holding some fiber and being illuminated by the light from it means that the light in the photo must be a laser? Come on, lighten up.
The implication is there. And leave my weight out of this discussion.]]> http://www.dslreports.com/forum/remark,19517909 Tue, 27 Nov 2007 12:07:12 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19517900 raythompsontn :
said by viperlmw See Profile :

Ever heard of 'multimode'? It uses LEDs as the light soruce, for short, in building runs, and has a larger core. 'Singlemode' fiber uses lasers.
Yep. Keyword in all of this is distance. Floor to floor within a building is not much distance. Distance without losses requires closely matched components.]]> http://www.dslreports.com/forum/remark,19517900 Tue, 27 Nov 2007 12:05:46 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19517772 quatrix : I thought Slimer got her.]]> http://www.dslreports.com/forum/remark,19517772 Tue, 27 Nov 2007 11:44:42 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19517765 viperlmw : Ever heard of 'multimode'? It uses LEDs as the light soruce, for short, in building runs, and has a larger core. 'Singlemode' fiber uses lasers.]]> http://www.dslreports.com/forum/remark,19517765 Tue, 27 Nov 2007 11:43:41 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19517647 Telukin : So article about fiber comms (that uses laser) coupled with a stock photo of someone holding some fiber and being illuminated by the light from it means that the light in the photo must be a laser? Come on, lighten up.]]> http://www.dslreports.com/forum/remark,19517647 Tue, 27 Nov 2007 11:25:15 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19517555 raythompsontn :
said by Matt See Profile :

Some short distance fiber equipment even uses low-power LED lighting instead of lasers.
An LED is not just "any light" and in fact produces a narrower spectrum than just "any light".

LED's are indeed used for short length communications. To get the most distance, with minimal losses, requires the much purer light of a laser system. The characteristics of the fiber are matched to the very narrow frequency of the laser. To obtain the speeds mentioned in the article requires a laser, even for the short distances. LEDs would simply not do the job.

Fibers used on Christmas displays are not very powerful, they are not lasers, and certainly do not come close to the affects of a true green laser.

»www.mayoclinic.org/news2005-rst/2800.html
»www.electrooptics.com/features/f···ure_id=6

If you want to know about the dangers of green lasers. A web search will quickly show that green lasers, used improperly, are indeed a significant hazard.

Looking at the output end of a high speed link driven by lasers is just plain stupid.]]> http://www.dslreports.com/forum/remark,19517555 Tue, 27 Nov 2007 11:10:14 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19517503 raythompsontn :
said by ATTek See Profile :

said by raythompsontn See Profile :

Fiber does not use "green light".
Incorrect. Any light will travel through a fiber for a short distance. It needn't be a laser.
Ok, then try and use "any light" to communicate through a fiber. Laser light is used because it is pure and does not suffer from degradation over distance that "any light" suffers. It is also easy to modulate the light. Try to modulate "any light" and measure your success. Try and get "any light" to travel more than a few feet through a fiber. It ain't gonna work. Again, lasers are used because the diameter of the fiber is matched to the frequency of the laser to reduce losses and interference.

For the photograph they may have used "any light" but the impression is designed to promote fiber communication and that requires a laser modulated beam.]]> http://www.dslreports.com/forum/remark,19517503 Tue, 27 Nov 2007 11:00:17 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19517480 bogey780 : Having any light source directed into the eyes is not a good idea. Angled light of relativistic ambient intensity is fine but directed light significantly brighter than ambient lighting can be damaging.]]> http://www.dslreports.com/forum/remark,19517480 Tue, 27 Nov 2007 10:57:05 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19517468 Matt :
said by ATTek See Profile :

said by raythompsontn See Profile :

Fiber does not use "green light".
Incorrect. Any light will travel through a fiber for a short distance. It needn't be a laser. If the pic isn't doctored in some way, then it's likely just a green light to make a nice publicity picture. The Christmas tree question was a valid one......do you really think all of the decorations around that use fiber optic lighting are harmful to your eyes?
Yep.

Some short distance fiber equipment even uses low-power LED lighting instead of lasers.
--
Pretty Fly for a White Guy™]]> http://www.dslreports.com/forum/remark,19517468 Tue, 27 Nov 2007 10:54:45 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19517410 ATTek :
said by raythompsontn See Profile :

Fiber does not use "green light".
Incorrect. Any light will travel through a fiber for a short distance. It needn't be a laser. If the pic isn't doctored in some way, then it's likely just a green light to make a nice publicity picture. The Christmas tree question was a valid one......do you really think all of the decorations around that use fiber optic lighting are harmful to your eyes?
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What does THIS button do.....]]> http://www.dslreports.com/forum/remark,19517410 Tue, 27 Nov 2007 10:46:03 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19517328 raythompsontn :
said by ITALIAN926 See Profile :

That was such a dumb comment man, its just a green light. When you walk by those fiber Christmas trees , do you hide your eyes ?
Do you know that for sure? Have you read about the dangers of green lasers? Infared from those lasers? Fiber does not use "green light". They use lasers, a coherent light source, a highly concentrated light source.

Tell you what. Take a green laser and shine it in your eye. You can still see the keyboard with your one good eye.]]> http://www.dslreports.com/forum/remark,19517328 Tue, 27 Nov 2007 10:26:57 EDT When do you read warning labels? http://www.dslreports.com/forum/remark,19517133 telcolackey :

"DON'T LOOK AT LASER WITH REMAINING EYE"
]]> http://www.dslreports.com/forum/remark,19517133 Tue, 27 Nov 2007 09:45:07 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19517105 ITALIAN926 : That was such a dumb comment man, its just a green light. When you walk by those fiber Christmas trees , do you hide your eyes ?

LOL]]> http://www.dslreports.com/forum/remark,19517105 Tue, 27 Nov 2007 09:36:37 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19517094 raythompsontn : I highly suspect that it is Photoshopped as the exit light would not diverge that much. Still it does give the impression that the light is indeed shining directly into the eyes.]]> http://www.dslreports.com/forum/remark,19517094 Tue, 27 Nov 2007 09:34:48 EDT Re: Brilliant Picture http://www.dslreports.com/forum/remark,19517050 hopeflicker : ohh, it's probably just photoshopped or some type of harmless laser.
--
People pray to God because they're told to.]]> http://www.dslreports.com/forum/remark,19517050 Tue, 27 Nov 2007 09:20:41 EDT Brilliant Picture http://www.dslreports.com/forum/remark,19517037 raythompsontn : Yeh, lets shine a bright laser light into the face. Safety glasses or not, that is never a good idea.]]> http://www.dslreports.com/forum/remark,19517037 Tue, 27 Nov 2007 09:18:27 EDT