NASA did this apparentlyhttps://www.quora.com/Is-it-possible-to-transmit-an-image-with-an-optic-fiber-with-only-lenses-and-mirrors-without-the-use-of-electronic-devices …
-
-
Replying to @vgr
honestly i assumed "optical fibre" just meant a material that when bundled would faithfully conduct an image from one surface to another
1 reply 0 retweets 0 likes -
Replying to @doriantaylor
Apparently not. It transmits a Gaussian corresponding to the fiber’s’ain mode so it’s 1 pixel per strand if I’m understanding correctly
1 reply 0 retweets 1 like -
Replying to @vgr
oh weird then how many strands have to be in an endoscope?
1 reply 0 retweets 0 likes -
Replying to @doriantaylor
Dunno. I’m now fairly confused. Digital is easy since it’s a light bitstream. This analog use case is tricky.
1 reply 0 retweets 0 likes -
Replying to @vgr
yeah weird i mean i thought a property of optical fibre was it would conduct whatever you put through it faithfully to the other side
1 reply 0 retweets 0 likes -
Replying to @doriantaylor
I think I figured it out. Coherent fiber bundles can do what you think, but it’s 1 pixel/strand and they’re like 1mm cross section. I saw one device listed at 10k bundle (so 100x100). Apparently they’ve been increasingly replaced by ccd arrays at tip. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3163080/ …pic.twitter.com/bp3izPFKkN
1 reply 0 retweets 1 like -
Replying to @vgr
one majro benefit of digital (resolution notwithstanding) is that you don't have to screw around with high-precision calibration
1 reply 0 retweets 0 likes -
Replying to @doriantaylor
Venkatesh Rao Retweeted Venkatesh Rao
Now I’m way down the bunnytrailhttps://twitter.com/vgr/status/1292693004889632771?s=21 …
Venkatesh Rao added,
1 reply 0 retweets 1 like -
I might buy this kit. It’s just $55 https://www.amazon.com/Adventures-in-Fiber-Optics-Kit/dp/B000701B7Y#detail-bullets …
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.