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How can one make a pattern head for a laser pointer? Answered

So I'd like to make some custom designs for a laser pointer, like some simple text and so on. I have no idea how! Even if there is some company that would do this for me I would be into that idea.


aiui, they use diffraction patterns that are basically made holographically, so pretty hard to roll your own.

You could try painting a small piece of plastic, and then using a very sharp pin to etch a pattern into it?