Toss in a low light environment and things get even more dicey – using flash, fiddling with ISO, changing aperture, etc. Professor Ma explained that unlike other photodetecting structures, the new silicon phototransistor is much more efficient because light cannot be blocked by metal layers.Īs most seasoned shooters know, capturing that perfect action shot requires high shutter speeds which comes at the price of decreasing the amount of light that the camera can collect resulting in less than sharp final results. “Currently, there’s no easy way to do that.” “We actually can make the curve any shape we like to fit the optical system,” Ma says. While many phototransistors are fabricated on rigid surfaces, and therefore are flat, Ma and Seo’s are flexible, meaning they more easily mimic the behavior of mammalian eyes. In a digital camera, that electrical charge becomes the long string of 1’s and 0’s that create the digital image. In the case of our eyes, the electrical impulses transmit the image to the brain. Like human eyes, phototransistors essentially sense and collect light, then convert that light into an electrical charge proportional to its intensity and wavelength. Integrated into a digital camera lens, for example, it could reduce bulkiness and boost both the acquisition speed and quality of video or still photos.ĭeveloped by UW–Madison collaborators Zhenqiang “Jack” Ma, professor of electrical and computer engineering, and research scientist Jung-Hun Seo, the high-performance phototransistor, they claim, far and away exceeds all previous flexible phototransistor parameters, including sensitivity and response time. The team of electrical engineers explains that this innovative new phototransistor could improve the performance of myriad products - ranging from digital cameras, night-vision goggles and smoke detectors to surveillance systems and satellites - that rely on electronic light sensors. Scientists at the University of Wisconsin are claiming they may have done exactly this with the creation of what they are calling the fastest, most responsive flexible silicon phototransistor ever made. The Holy Grail tech for those involved in the imaging world has always been to mimic, via digital means, exactly what the human eye sees through a camera and produce that vision as an image.
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