Diffraction gratings tutorial - Green, blue & red laser show

[niek237]

where can you buy effect glassses ?

[dragonlasersfanman]

@niek237 if you mean laser safety glasses, you can get them from Dragonlasers at w w w dragonlasers com

[Liechengsos1]

al you min yum?

[dinnerbagel]

Haha green wins!



[elisama92]

lindo!!!!!!!!!!!!

[smiahaisilviu]

what size can these laser Diffraction have? can u make imagese on the sky in the night? pls answer

[dragonlasersfanman]

They are 57*42*3 (mm)

They can create beam effects visible in the sky BUT you need dark conditions, a powerful laser and to be standing in the right position to see them.

[smiahaisilviu]

what size can these laser Diffraction have? and can u make imagese reflect on the sky in the night

? pls answer

[dyslexiccowssayoom]

OR ROBOCOP

[dyslexiccowssayoom]

2:14 HOLY SH!T ITS THE TERMINATOR

[ATFDC24]

what happened to your red lasers? dont carry them anymore>

[dragonlasersfanman]

Nope. We have pretty much every color except red in portable lasers.

[ADisasterpiece]

Fuck... Whatever happened to the good old days of white light and triangular prisms..?

[dragonlasersfanman]

welcome to modern technology. Pink Floyd's album cover is out of date :)

[ADisasterpiece]

No way man, it's timeless! Besides, all of these diffraction grates are based off that image. Not the album cover but the image that they used on it from some guy's experiment. (Yeah, I forget his name)

Good CD though. Just found out that I'm missing "Breath" from it and I can find the CD. Haha

[genithlol]

The cover symbolizes something these laser cant... So no its not out of date at all. Thank you for the video, I can make my purchase now with this info.

[MSLuver09]

i dont get ittttt!!!!

please help me!

ok i dont think my laser is very strong

it is red and i got it from thos toy box thingy....

the ones where you put a toonie in there and turn the handle thingy

then a laser comes out in a sphere

so heres my question

when i shine it at something, it just makes a little red colour dot, no lines!!

y??

[dragonlasersfanman]

Sounds like your laser is too low in power to create lines.

[OGMO11]

make some smoke... if you mean the line you can actually see

[znippo1]

buy a high power green or blue laser

red are wery hard to see with your eye, you can werry rarely see the lines from a red laser because of the wavelenght of the light

[Stopusingoil]

diffraction is the bending of light as it passes through a gap the same size as it's wavelength.

i'm such a physics nerd

[ATFDC24]

What power is Sparan blue laser that you used?

[dragonlasersfanman]

That is a Spartan BP 40mW model

[StradaPower]

maybe u can built some lasers to burn everything

[ELkuken]

dear god, OPTICAL QUALITY? that's sooooo awesome

[FatalError2319]

ChrisMarshall1218, shut the fuck up and bag my groceries.

[teojm37]

hi i was just wondering what laser i can get for under 500usd that has the most brilliant beam(green) ty.

[az095hgl]

dude...they have laser pointer safety goggles....

[jonjobob]

dude, cant believe ur not blind, or have sight damage, if it goes threw the lenses in the glasses........

[dragonlasersfanman]

No danger of blindness if you are careful and especially not if you use laser safety glasses.

Have to be careful with the red laser though.

[cryingindian]

what is the main use of these lasers?

[dragonlasersfanman]

Mostly entertainment/fun. They do have a lot of practical applications such as alignment, search and rescue and avian dispersal

[cryingindian]

Sorry my experience of laser pointers is limited. So why are they made so powerful that they can damage? are these the one that are more for professional use like the areas you mentioned?

[dragonlasersfanman]

For both entertainment and professional use, having a beam that has long range and very bright is beneficial. You need a lot of power to give long range and brightness so these lasers can also do damage.

[cryingindian]

Read what he said. There are professions that use lasers such as search and rescue. Yeh but your totally right those people have no lives you idiot

[kila730]

your a fucking retard they have the best lasers in the world.

[Lanceshizzy]

um u know u sent me this one video

[dragonlasersfanman]

Oops, did not mean to send it to you twice

[semnopithecus2]

i tryet with lenses from a cd-rom drive, they make a similar effect.

[skittlesareyum48]

intresting video i lie kit. 5 stars

[Bentherdonthat]

Question. Lets say input beam is 1 watt what would be the energy density of each little dot?

Question: how many watts can the little diffraction glass take without being destroyd?

[dragonlasersfanman]

Very hard to say, the distribution of energy across the output beams is not completely uniform. The split beams also have a very high divergence so it depends on the range power is measured.

These diffraction gratings are designed for high power lasers and use high grade optical glass so they can handle multiple watt lasers with out any damage.

[FinalBlight]

nice 5*

[AskJeeves17]

That's so FREAKIN cool....

[06dogb]

Cool. Great Video

[hunterbob21]

AHHHHHHHHH MY EYES!!!!!

[JeepersMedia]

Dragonlasersfanman,

VERY interesting and cool Video!

Mike Mozart Your Friend and Toy and Product Guru of Jeepersmedia!

[loudspeaker911]

cool xD

[StupidIdiot12345]

Well done! Thanks for the vid!

[KILLERONROAD]

thats fuckin hot!

[ryanmaurer]

Thats pretty cool!

[dragonlasers123]

cool!!

[elgranto7]

diffraction rocks!

good times in my a-level physics class with my green laser haha

[cslevine]

thanks. This is beautiful.

But maybe dangerous if we accidently put the laser into a reflection device and if the reflected ray come into once's eyes, he becomes definitively blind in just a fraction of inattention time !

[tkktkt]

dude. friggin kewl

[GmodPlusWoW]

Hmmm, interesting.

[mikeeey1337]

awesome, but i prefer the look of the starburst defraction grating, not too many dots, but not to little. with this one there is awefully a lot of dots, can the beams of each one be seen at night?

[PoisonGerbal]

Thats cool man thanks

[gilligan07734]

no grape juice colored lasers?

[roremster]

Cool, thanks for sending it to me :)

[Darrylb500]

Awesome! Kind of like those old Lite Brite sets, only quicker to use, but much more expensive :P

[RoastySmish]

i love all your vids, thanks for making

[RexStrider909]

Man thats cool!That would definitely make for an awesome laser light show. Thanks for the info and demonstration :D

[jumpstart4418]

Wow, it looks like looking at the stars almost..