Recent content by nwytg

Thanks for the idea I checked 4 matte silicone cases for iphones. Thw white matte one almost didn't appear to have any apparent texture after projected onto, same with gray, the two black ones have some speckle shine on them. My guess is all of them do just the white shine on the brighter ones...

I'm not sure it needs to be if the pixels were very small. But it definitely needs to be smaller than the human eye can detect. So for a 20/20 vision which is 60 pixels per degree roughly 50mm stretched to 90 degrees gives 1/108th mm or about 9 micron (50mm / 90 deg x 60 pixels) grain or...

Because the screen viewed through a stereoscope or head mounted display is viewed through a magnifying lens, that's quite different than viewing something from up close because basically the image becomes a virtual image the size of a large wall appearing meters away from you and any texture on...

I'm not sure I was thinking a simple noise or checkerboard pattern would do the trick It will be like this. The LEDs have a peak wavelength with most generated light and with a narrow wavelength range for the rest of the generated light, so its not pure monochromatic like lasers with a single...

It doesn't even have to be near me, I'm perfectly fine with paying for shipping if there are online services or similar. As for DIY, well I do have access to a blue multimode laser CNC and an IR 80W laser CNC, but I doubt the motors can move in nanometer steps or focus the beam to a few...

Correct. Yeah, I had no idea there were low cost options for silicon etching. Short of university where else can I get this done? Thanks.

I edited my post when you were responding, the size is only 50x50mm.

Definitely considering etching as a possible option at this point. My size requirement is only 50x50mm square space to be etched or otherwise textured. Any ideas what's a typical etching resolution for a PCB? Technically I think with either laser cutter or a demagnified DLP projector the...

Berkeman, my supposed frustration comes from the two replies here, not internally or the single other thread I've made. I was given a suggestion with the poster refusing to clarify what he meant at all. I have zero interest in starting an online argument but the last response from the poster was...

No. I'm trying to be polite here but this is not an advice. That's not how you give suggestions by throwing words and leaving. You can't give a hypothetical solution to a problem by only mentioning the "what" without the "how". You mentioned two materials and gave zero explanation how they would...

Not sure how that can be made to work. Please tell me more.

I don't, but do let me know if you managed to find a seller of adhesive ir pass films

I wasn't saying the patent was not helpful because of what it achieved and I said it achieved more than what I needed. I was just saying it doesn't mention how the tiny granularity size/texture size on a reflective surface is produced because that wasn't the point of the patent. As for product...

I'm still not following, sorry. What do you mean by "I was operating under the apparently false assumption that the granularity size was the important characteristic and other things, scattering angle, etc., were secondary as long as they didn't get in the way."? I've said few times the...

Tom, what is this in response to? That does sound like something I could use. Haven't seen such matte blinds myself.