New technology that will redefine the camera is coming. The question is when it will be ready for prime time.
Researchers are working on cameras that can capture still images and video clips without a lens. It turns out that pictures can be taken with just an image sensor superimposed with specially imprinted thin film. Since this would obviate the need for bulky lenses — the film is a mere 1 micron thick — the technology is likely to find its way into a range of fields and could completely alter the competitive landscape of the camera industry.
Compared with today’s cameras, lensless models should be a lot cheaper to produce.
In Japan, the leader is Hitachi, which recently announced the development of the country’s first lensless camera. Over in the U.S., Rice University and semiconductor developer Rambus are leading the way. At this point, Hitachi’s technology stands out because of its speed.
Design-wise, the Japanese company’s lensless camera is fairly simple. It comprises an image sensor superimposed with special film imprinted with a pattern of concentric circles. The film interferes with the light that passes through to the sensor. A computer calculates the extent of that interference and reconstructs the image. (more…)