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ArcticMyst Security by Avery

Is it possible to make custom diffraction lenses?

L

laserlizard

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Hi there i'm new :beer:

i was curious if it'd possible to make custom shapes in those lenses that screw on the caps of laser pointers? After some research I don't think a grating is what I need since it diffracts lights in all directions.

I remember as a kid they had these tips with a pointer finger, an arrow, a crosshair, etc. you could screw on. something like that. I'd like to make a star shape for this film I'm shooting.

Any places I could contact to make me a custom tip? or a guide on how to make my own? I've always been fascinated by lasers so I wouldn't mind getting my hands dirty.
 





Tech_Junkie

Tech_Junkie

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No, you cant make your own. You can have some made but they are far from cheap. Google around for best prices.
 
JLSE

JLSE

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Unfortunately if you google laser and stars, I doubt he will find the
type hes looking for. I just tried on ebay and got what I figured..

$%28KGrHqZ,!jIE69y2fYteBPcu!7IunQ~~60_3.JPG


Try searching ebay for 'red keychain laser' and take your chances
with ones that come with a bunch of the heads, or try asking the
seller. Just watch when you use the term 'star', there are a lot of
different patterns referred to as such..

Look for something like this ..

12_TIP_LASER.JPG
 
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JLSE

JLSE

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Tech_Junkie said:
HERE. :whistle:
Click to expand...

Thats a good route if you need custom lettering etc.. If just the shape of a star
as mentioned in the OP, hed probably spend a lot less with a simple old school dollar store
pointer and caps.. IIRC there were 12$ pointers with like 50 caps.. got to be one in there.

Wish I could find my middle finger cap.. A 1W+ middle finger would be a sight to
see at distance on a large building :can:


@OP, there is a star in this ones pics, but this laser doesnt have caps, it rotates
to the next.. Though they are out there..

http://www.ebay.com/itm/Red-Laser-P...412?pt=LH_DefaultDomain_0&hash=item43abfdea84


$%28KGrHqZHJB8E63%28O8Re0BO8E%29NKv7Q%7E%7E60_35.JPG



*EDIT

Found the closest I could remember.. 42 caps. I would contact the seller, and see what
the patterns are. He appears to be located in the USA.

http://www.ebay.com/itm/POWERFUL-RE...550?pt=LH_DefaultDomain_0&hash=item45ff870696

$(KGrHqNHJCEE63(UQ+peBO8E7GtoGQ~~60_35.JPG
 
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Tech_Junkie

Tech_Junkie

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I guess he could use 5 single line gratings. Not sure if that would work though.
 
Meatball

Meatball

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I need a custom grating to project 3W of laser onto my wall that says

"DO NOT STARE AT THIS SIGN"

lol
 
ShortyInCanada

ShortyInCanada

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Every one of those dollar store cheapies I get has the single dot, a thumbs up (either left or right hand) and a 5 point star cap for it.
Just go out and look in your local stores and you will probably find it.
I got 40+ patterns with a cheapy for all of $5 some years back. The laser was more or less the same and the caps all fit on the $1 ones too.
They are out there and they are dirt cheap.
 
Tech_Junkie

Tech_Junkie

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A gay laser pointer, LMAO. I've seen it all now. :rolleyes:

$%28KGrHqZHJB8E63%28O8Re0BO8E%29NKv7Q%7E%7E60_35.JPG


Just found out the other day LOGO was a gay program channel. :tinfoil:
 
Tech_Junkie

Tech_Junkie

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I never watched it to be honest. My girl friend was checking out new channels on the box and told me about it.
 
L

laserlizard

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thanks i've contacted that seller. I've spoken to a few people about custom diffraction gratings and the lowest i've been charged is $20,000 so that's not gonna happen :crackup:

I should have clarified in my original post, the shape is actually a pentagram. so a 5 sided star with a circle around it, it's for a shoot for this clothing brand called UNIF from the US. apparently they have a "rebellious attitude" :evil:

anyways if a seller does have a 5 sided star for sale would it be possible to also get a tip that casts a circle and align them up to create the shape for the shot?
 
J

joeyss

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You can make projections using paper and a lens. Just burn whatever you want on a black piece of paper. If you make it the right size you can fit it in the beam of a 10x expanded beam and get a projection that goes very far, but it''ll be small.
 
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