Recent content by LightningInAJar

This Voxon technology looks pretty cool. But I'd love to create 3D holograms for 3D models so I don't need to manufacture into physical objects in order to show them. Does anyone have predictions of when this might become more commercial? And what keeps the resolution so low? Still in proof of...

Just a cheap green laser pen about 2cm diameter. Less the 5mm laser beam. Roughly 8mm diameter Powell lens.

Chatgpt is the first place I went when asking about lenses. YouTube helped more.

I have basic tools. I worry just sticking laser to lens might make it harder to make adjustments. I think the light needs to hit it exactly right to get it to fan out. At least that's my sense from holding them in hand to line them up.

The lens has like 3mm diameter so the holder would need to be tiny. Ideally would like something that can be secured to a camera tripod thread. I have a 2 camera bar that can hold two cameras. I was thinking one could hold the lens, and the other a claw grip holding the laser pen.

Only using laser point and definitely pointing away.

I'd rather not use glue on a $40 lens. I was thinking more a clamp of some kind? They have 3 nob tightener type clamps which can screw onto a tripod type thread?

I went ahead and got a Powell lens on Amazon. It seems to do the trick. It's a small lens. Any special holders with maybe camera thread adapter to stand up?

Thanks. Hopefully eveeything gets funded again soon.

What is there website? Same type of sun images comparable to a telephoto lens and solar filter?

https://sdo.gsfc.nasa.gov/data/ Since the government shutdown this site stopped updating photos of the sun and now they seem to have server issues. I like looking at the day to day photos of the sun, but they still haven't gotten up and running again. Does anyone know when they might be back to...

The one I got was half a circle so flat on one side and convex on the other. Is the version in your picture what I'm looking for?

That is with the laser level giving a somewhat vertical line beam?

That is interesting. How much light do you think gets absorbed by the mug? I wish I could visualize how that happened. Looks like you reflected 90 degrees off of it?

I initially got a cylindrical lens on Amazon for under $8. It didn't work at all.