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FrozenGate by Avery

this guy...






I don't like it when uneducated people try to educate others.

He was probably told about UV lasers that use third harmonic generation of green, and now thinks that green lasers emit UV.
 
Rawful... "and remember kids, never take the covers off of your lasers"

"I want you to see how bright this light is visually" Now there's a concept. Has anyone here ever witnessed something audibly blinding?

Hey, at least he's not being irresponsible.
 
his title is "brian laser science experiment" i wonder if his full name is like this...
Brian Kay :thinking:
 
I wouldn't be too harsh on them, he did make the mistake of UV, but at least he was promoting the use of safety goggles.. and as for the question thing, the guy knew quite a bit about laws etc, but with the green and blue diodes he was a little off... but he may have new they were pumped crystals but was dimming it down a little for a normal audience who don't want to know about IR pumped YAG crystals :) (think it's YAG :p)
 
Asherz said:
I wouldn't be too harsh on them, he did make the mistake of UV, but at least he was promoting the use of safety goggles.. and as for the question thing, the guy knew quite a bit about laws etc, but with the green and blue diodes he was a little off... but he may have new they were pumped crystals but was dimming it down a little for a normal audience who don't want to know about IR pumped YAG crystals :) (think it's YAG :p)
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Yeah at least he used safety glasses and informed people of safety and the likes.


Also, generally YVO4 is used with diodes in smaller applications, like in pointers and labbys. If YAG is used you need to add a polarizer since YAG is unpolarized and wouldn't work with the KTP nearly as well, this takes up some space and adds costs. YAG can be flash lamp pumped as well as diode pumped.
 
diachi said:
Yeah at least he used safety glasses and informed people of safety and the likes.


Also, generally YVO4 is used with diodes in smaller applications, like in pointers and labbys. If YAG is used you need to add a polarizer since YAG is unpolarized and wouldn't work with the KTP nearly as well, this takes up some space and adds costs. YAG can be flash lamp pumped as well as diode pumped.
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I everyday get more amazed of your knowledge.

:worthy:
 
Every 5 seconds he spits out something wrong lol!
When dealing with green lasers there are indeed 2 kinds of "harmful" light you need to worry about, but none of them is UV.
So let's see:
UV from green lasers
green laser diodes
"this measures the miliwatts that come out of a laser"
using a lasercheck to take unfiltered readings
the "hot mirror" filters out 100% IR
"let's see how bright it is in miliwatts"
"notice how BRIGHT this light is VISUALLY"/"intensity of visual brightness"

His orange goggles aren't going to protect him from that extra 300% IR :whistle:
 
Hallucynogenyc said:
I everyday get more amazed of your knowledge.

:worthy:
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Haha , thank you ! I spend a lot of time reading on Sam's laser FAQ. Still got lots to learn though . ;) I read a lot of interesting stuff on Here , Alt.lasers and of course, photonlexicon. Where many of the members have looonnnngg complex discussions about lasers that are just absurdly complex :p A whole load of people on PL and Alt.lasers have first hand experience with lasers like Laserscopes, large frame argons/kryptons and CVLs, as well as other solid state and gas systems. Many of them have been working with these systems since the 80s, so they know their stuff ! :D

Regards,

Adam
 
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Apparently some of you don't know that optical based sensors are overly sensitive to IR. There's likely no more than a few mW of IR in that beam.
 
The problem with the Coherent LaserCheck is that you need to set the wavelength to detect, so if you set it to 532nm green, and there's green and a small amount of IR, the readings get thrown off a lot.
 
Cyparagon said:
Apparently some of you don't know that optical based sensors are overly sensitive to IR. There's likely no more than a few mW of IR in that beam.
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If you mean me when I said "His orange goggles aren't going to protect him from that extra 300% IR" , I was being sarcastic lol.:D
 
Cyparagon said:
Apparently some of you don't know that optical based sensors are overly sensitive to IR. There's likely no more than a few mW of IR in that beam.
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N0 wai man... I bet therez like 1W minimum!! I heard IR burnz your eyez like twice as fast as normal light too!! AND it's like a magnet for eyeballs... you could have it pointed away frum you but the light will bend around to enter directly in2 your eyez!~!!! LOL! I wear IR gogglez rather than green gogglez with my green pointers becuz the green is way less dangerous than IR.... OMG IR!!!


{/sarcasm}
 
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