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I've reposted this article after a recent article posted on Imaging Resource about confusion of the real resolution of the CCD's used in Fuji's new SuperCCD digicams. Vitals: CCD pixel resolutions:
FUJIFILM'S DIGITAL IMAGING BREAKTHROUGH: NEW SUPER CCD IMAGE SENSOR SIGNIFICANTLY IMPROVES THE COLOR, CLARITY AND SHARPNESS OF DIGITAL PICTURES New Cameras Featuring Super CCD Technology Make Their Debut at PMA 2000 PMA 2000, LAS VEGAS, NV -- Leading the
way, once again, in digital imaging innovation, Fuji Photo Film Co., Ltd.,
in collaboration with its subsidiary Fujifilm Microdevices Co., Ltd.,
has developed a new charge-coupled device (CCD) technology that dramatically
improves the quality of digital images. Two digital cameras that feature
this new technology - the Fujifilm FinePix 4700 ZOOM and Fujifilm FinePix
S1 Pro - will be on display at PMA 2000. "This shift in CCD design can only broaden the consumer appeal of digital imaging, as pictures taken with a Super CCD camera are noticeably better than images captured using conventional CCD technology," said Manny Almeida, Vice President and General Manager, Digital Imaging Division, Fuji Photo Film U.S.A., Inc. The number of sensors in conventional
half-inch CCDs has increased dramatically in recent years, but it is generally
believed the apex has been reached at around three million sensors. Any
further increase in the number of sensors - which, conversely, decreases
the size of each sensor - is known to adversely affect sensitivity, dynamic
range and signal-to-noise ratio. A larger photodiode area (a Super CCD photodiode is 50 percent larger than that of a conventional photodiode) proportionately improves sensitivity, the signal-to-noise ratio and the dynamic range, key elements in digital image capture. As a result, a Super CCD sporting 1.3 million sensors would reproduce the picture quality of a conventional CCD with 2 million sensors. In addition, the Super CCD mirrors characteristics of the human eye to interpret collected information. Similar to the function of the retina, which is used to interpret color and light, the Super CCD transforms optical signals into electrical impulses. These impulses are then passed through
a signal processing system to form the image. And by allowing skipped readout of image
data without sacrificing quality, the Super CCD also streamlines the process
by which electrical charges are transmitted through the photodiodes, making
high-speed continuous photography possible and thus offering high-quality,
full-motion video output. What sets Fujifilm digital imaging products
apart is the technology that goes into each and every product. Fujifilm
is one of only a handful of marketers that both designs and manufactures
the key capture elements of a digital camera -- the lens, CCD and image
processing mechanisms. This total control ensures strict adherence to
design specifications. |
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REPOST:
Received an interesting news release (early) from an anonymous
poster which describes a little better how the SuperCCD technology differs
from standard CCD's. "The number of sensors
in conventional half-inch CCDs has increased dramatically in recent years,
but it is generally believed the apex has been reached at around three
million sensors. "
The
new sensor shape and arrangement of the Super CCD offers a number
of advantages over the current, conventional CCD. For example, space efficiency
for the photodiode located in each sensor has been dramatically improved
by its octagonal shape. In addition, the arrangement of the sensors allows
them to be packed at maximum density and this efficient use of space allows
for larger photodiodes and higher resolutions. 