Researchers at Caltech have unveiled a new digital lensless camera design which needs no optics at all to function. Instead it uses in optical phased array to capture light at different times with different focus to create the entire image.
What’s the demonstration video below to learn more about the lensless camera created as a proof of concept prototype using 64 array sensors in an 8X8 grid. The sensors are exposed to light using sub nano-second timing each capturing a specific direction piecing together the complete image.
Professor of Electrical Engineering at Caltech Ali Hajimiri explains more about the unique camera design:
People, if you will imagine, have a very simple phased array already. That is, your ears, of course. If you are at a party and talking to someone and the conversation is very boring you might start listening around the room for other sounds or conversations. This is very much like the phased array we’ve built.
We’ve created a single thin layer of integrated silicon photonics that emulates the lens and sensor of a digital camera, reducing the thickness and cost of digital cameras. It can mimic a regular lens, but can switch from a fish-eye to a telephoto lens instantaneously—with just a simple adjustment in the way the array receives light
For more information on the new lensless camera jump over to the official Caltech website for details via the link below.