On 7/30/2017 10:57 AM, jacobnavia wrote:
Caltech has demonstrated a camera without lenses.

https://petapixel.com/2017/06/22/cal...camera-future/

Unfortunately the link (and the links referenced in it) do not
give much information. Interesting questions a

1) Sensitivity (signal to noise ratio) compared to a camera
that does have a lens (and e.g. a CCD as detector)?
2) Does 'optical' mean infra-red or visible light? (IR may
be much more easy).
3) What is the bandwidth? A heterodyne system might be quite
limited here (which of course turns into an advantage if
you want a single spectral line..)

I don't immediately see this kind of information in related
articles either:
http://ieeexplore.ieee.org/search/searchresult.jsp?queryText=optical%20phased%20arra y

--
Jos