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+--- Thread: Lens-less flat camera (/showthread.php?tid=2085)
Lens-less flat camera - terrafamilia - 02-16-2016
Bulky Cameras, Meet The Lens-less FlatCam
Camera technology has improved dramatically in the past decades, but one thing about even the newest cameras has stayed constant: They all have lenses.
Now, that's changing.
Engineers in Texas are building a camera that can make a sharp image with no lens at all.
A stepping stone to OPA sensors? Here's the paper -
FlatCam: Thin, Bare-Sensor Cameras using Coded Aperture and Computation
Ciao,
Terrafamilia
RE: Lens-less flat camera - Rynn - 02-16-2016
Cool. I like the idea of a wall paper that is covered in thousands of these sensors. Seems like a good basis for invisible unisurv.
RE: Lens-less flat camera - stevebowers - 02-17-2016
This would be useful for chameleon tech. A flatcam layer receives the light incident on one side of an object, and a phased-array system transmits the same image on the opposite side of the object, thus making the object appear transparent in all directions (not just one).
RE: Lens-less flat camera - JohnnyYesterday - 02-17-2016
You'd need phased arrays to act as the cameras and display to achieve true invisibility; the scene would have to be recorded holographically. Otherwise, what you'd have would be a flat moving image wrapped around a 3D object--which would look like Predator camo.
RE: Lens-less flat camera - stevebowers - 02-17-2016
That would be better than nothing, but you are right. Invisibility is a difficult trick, and I don't expect to see it in my lifetime
