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- Feb 11, 2009
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Hey guys,
I am looking for a "diffraction grating" (not sure if this is the name of the optic), that projects something like this when you shine a laser through it:
O O O O O O O O O O O O O O
The little green O's are the dots. I know that common diffraction gratings make a line or matrix of laser-light (as I own a couple), but I would need an optic that can do this
O O O O O O O O O O O O O O
instead of this
________________________________________
Any help is greatly appreciated.
Thanks
-Jakob
P.S. I remember finding a tiny little acrylic cylinder inside of a KES-400A BluRay drive that did this, but the dots were pretty bad quality, and were concentrated in the center (bright in the middle, and getting dimmer and dimmer as they went towards the ousides). It would be great if I could find a better quality one than that.
I am looking for a "diffraction grating" (not sure if this is the name of the optic), that projects something like this when you shine a laser through it:
O O O O O O O O O O O O O O
The little green O's are the dots. I know that common diffraction gratings make a line or matrix of laser-light (as I own a couple), but I would need an optic that can do this
O O O O O O O O O O O O O O
instead of this
________________________________________
Any help is greatly appreciated.
Thanks
-Jakob
P.S. I remember finding a tiny little acrylic cylinder inside of a KES-400A BluRay drive that did this, but the dots were pretty bad quality, and were concentrated in the center (bright in the middle, and getting dimmer and dimmer as they went towards the ousides). It would be great if I could find a better quality one than that.