UK-based Plastic Logic and French company ISORG have created what the pair tout as a first in flexible printed electronics: a large area, conformable, organic image sensor printed on plastic. (Source: ISORG and Plastic Logic)
Excellent question, edsut. The answer to your first question, "doesn't every image sensor need a lens to properly focus in on some field of view?" is yes, but... A very accurate lens is only needed for taking pictures. We have been trained to think of image sensors as being used in cameras for increasingly sharp, accurate and realistic pictures, especially in machine vision. But in motion sensing, an image sensor such as the Kinect's doesn't have to "see" your gesture very well--it just has to sense the position and direction of your arm or other body movements, aided by a depth sensor for 3D and a tracking chip. Then the motion capture software takes over to decide what your gestures mean. The Kinect lens is small, round and unsophisticated. There's a good Wikipedia article on the subject. Regarding flexible lenses, the human eye has a flexible, curved lens, and some curved Fresnel lenses (used in lighthouses) are flexible. So are intra-ocular lenses implanted in the eye for correcting myopia.
Interesting, and note, I'm no optics expert, but doesn't every image sensor need a lens to properly focus in on some field of view? If the sensor is flexible, then doesnt' that make it tougher for the lens to do its job?
Interesting comment, William, since making flex circuits that don't break was one of the big challenges in the earlier days of this technology's R&D. I see your point about applications--flex image sensors could be used in many places where traditional rigid image sensors couldn't go before.
What has not been mentioned is the improvments in ruggedness and durability that would come from the circuitry not breaking when flexed a bit. That should open up a realm of applications where previously a display or sensor would have broken during normal use. A flexible image sensor could watch stamping die activity from a much closer viewpoint, for instance.
Even if they're not actually Dick Tracy-style, flexible wraparound watches and wristbands are definitely a possible application for this technology, as they are for other printed flex sensor technology. For example, those health-monitoring wristbands that take your temperature, heart rate and other data during exercise. Now they could record image data as well.
I especially appreciate the flexible nature of this technology. 'Wearable' smart devices (i.e. wristband) could become more of a reality with the ability to curve or bend the display surface. I would imagine the flexibility of this display surface would open up many new markets for innovative display applications.
A slew of announcements about new materials and design concepts for transportation have come out of several trade shows focusing on plastics, aircraft interiors, heavy trucks, and automotive engineering. A few more announcements have come independent of any trade shows, maybe just because it's spring.
At the JEC Europe 2015 composites show in Paris last month, makers of composite materials, software, and process equipment showed off their latest innovations. This year's show saw some announcements related to automotive applications, but many of the improvements came in the world of aerospace.
The DuPont-sponsored Plastics Industry Trends survey shows engineers want improved performance in a broad range of plastics and better recycling technology. These concerns top even processing enhancements that improve productivity.
Plastics leader SABIC recently announced a global initiative to help its customers take advantage of additive manufacturing (AM) and also advance 3D printing (3DP) technologies in several application areas. The company's plans go way beyond materials, and also include design, processing, and part performance.
A theme that was reflected in several ways at NPE 2015 was the use of 3D printing to assist in, or improve on, injection molding, as well as improvements in 3D printing materials and processes that are making better functional prototypes and end-use parts.
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