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|05-16-2016, 05:22 PM||#1|
Join Date: Dec 2015
Location: Southern Ontario, Canada
Posts: 1,156Rep Power: 6833
Diffraction Optical Element - from Reddit & Material Sample Shop
Thanks to a thread that Rokakku made couple weeks ago (Diffractive Optical Element: Laser making cool patterns through plastic) I found this item and found it really interesting. They online store that sells these DOEs claimed that they were out of stock but, the shipping was actually a hell of a lot faster than I would've expected, especially being from Denmark. Copenhagen to Toronto in two weeks isn't bad for over seas + out of stock! I must say, I wasn't even expecting it to come in.
(Thanks to Canada Post, a DTR module and this got delivered to someone else's address. I'll be sure to have a word with CP...)
I noticed that this diffraction element that lower power lasers work quite nicely, rather than higher power e.g. class IV. It's just too much light scattered all over the place, and a bit of strain on the eyes. For all the images I'm showing, I used a 303.
Here's what it came in (I ordered two, both of which are in the bag attached via a chain):
I believe it's a plastic polymer, it's also barely visible unless under a black or darker surface.
Here it is in action! With help from the laser tripod to hold the 303:
Here's an attempt at a .gif, looks like the frames and frame rate were rather... unsuccessful but I tried to save a good chunk of what I could. The spinning globe animation really is quite interesting:
Buy it here: https://www.materialsampleshop.com/p...ptical-element
I'm selling some custom machined hosts. Click here to take a look!
632.8nm: Melles Griot HeNe, 1mW
532nm: Custom made GITD Pocket laser: ~133mW
532nm: Chrome laser pen: ~50mW
532nm: eBay 303: ~60mW
465nm: 07E Laser Box Build: 4W
462nm: M462 Pocket Build: 1W
450nm: Stainless Steel NUBM44 Handheld: 6.8W
445nm Pocket Series from Podo (Sanwu): 500mW
405nm: eBay pen
Keep yourself safe. *link*
|05-20-2016, 01:18 AM||#2|
Class 1M Laser
Join Date: Oct 2010
Location: Portland, OR
Posts: 110Rep Power: 108
Re: Diffraction Optical Element - from Reddit & Material Sample Shop
I remember seeing this, but had forgotten about it until now. Very cool to see it's for sale somewhere.
Now the question is, how can we make our own, with more interesting designs? Or somehow useful, they mention making a gameboard using this process on that page...
5mW 405nm eBay Pen
600mW 445nm Hotlight
5mW 532nm DealExtreme Pen
50mW 532nm Pen
30mW 650nm Pen