ROCHESTER, N.Y., Feb. 4 --
Eastman Kodak Company (NYSE:EK) is enabling a new level of performance in
consumer imaging devices by redesigning the basic building blocks used to
collect light and is incorporating that technology into a brand-new sensor.
The company has combined its recently announced Color Filter Pattern
technology with a new CMOS pixel to create the KODAK KAC-05020 Image Sensor,
the world’s first 1.4 micron, 5 megapixel device. Designed for mass-consumer
camera applications such as mobile phones, Kodak’s new sensor enables a new
level of resolution in small optical formats, using significantly smaller
pixels. But unlike other small-pixel sensors which can produce poor images,
especially under low light conditions, the 1.4 micron pixel used in the
KAC-05020 Image Sensor changes this convention, providing image quality that
can equal or surpass what is available from current devices using larger, 1.75
micron pixel CMOS designs.
“Camera phones and other small-pixel consumer imaging devices often suffer
from poor performance, especially under low light conditions. To manufacture
sensors that utilize these very small pixels – only two to three times the
wavelength of visible light – we needed to challenge everything we knew about
pixel and sensor design,” said Chris McNiffe, General Manager of Kodak’s Image
Sensor Solutions business. “By completely rethinking the design of the CMOS
pixel and leveraging our work with high sensitivity color filter patterns and
algorithms, Kodak was able to develop this remarkable new sensor that will
enable a level of imaging performance previously unavailable from CMOS
devices.”
Key to the performance of this new sensor is the KODAK TRUESENSE CMOS Pixel,
a re-engineering of the fundamental design and architecture of traditional CMOS
pixels. In a standard CMOS pixel, signal is measured by detecting electrons
that are generated when light interacts with the surface of the sensor. As more
light strikes the sensor, more electrons are generated, resulting in a higher
signal at each pixel. In the KODAK TRUESENSE CMOS Pixel, however, the
underlying “polarity” of the silicon is reversed, so that the absence of
electrons is used to detect a signal. This change enabled a series of
improvements to the design and structure of the pixel that ultimately results
in CMOS imaging performance that rivals that available from CCD image
sensors.
Light sensitivity in the new sensor is enhanced through the use of the
recently announced KODAK TRUESENSE Color Filter Pattern, which adds
panchromatic, or “clear,” pixels to the red, green and blue pixels already on
the sensor. Since these pixels are sensitive to all wavelengths of visible
light, they collect a significantly higher proportion of the light striking the
sensor. This provides a 2x to 4x increase in sensitivity to light (from one to
two photographic stops) compared to current sensor designs, improving
performance in low light and reducing motion blur in action shots.
At 5 million pixels, the KAC-05020 provides the highest resolution available
in the popular ¼” optical format, and enables imagery up to ISO 3200 and
support for full 720p video at 30 fps. The sensor is also supported by the
Texas Instruments’ OMAPTM and OMAP-DM solutions, enabling a host of
KODAK Image Processing and Enhancement Features (such as digital image
stabilization, rapid auto-focus, red-eye reduction, and facial recognition)
that provide digital camera-like performance in a camera phone.
“For consumers today, high resolution is required but no longer sufficient,”
said Fas Mosleh, Worldwide Director of CIS Marketing and Business Development
for Kodak’s Image Sensor Solutions business. “Smaller and thinner camera
phones, high performance under low light, and superior video performance are
the types of features that will enable the next generation of consumer imaging
devices. And with this new Kodak sensor, camera designers can now put those
features directly into the hands of their customers.”
The new sensor expands Kodak’s portfolio of CMOS and CCD image sensors for
consumer and applied imaging applications, and positions the company to take
advantage of the growing demand for high-quality image capture in a variety of
devices, regardless of size.
The KAC-05020 will be demonstrated by Kodak at the GSMA Mobile World
Congress held Feb 11 – 14 in Barcelona, Spain. Samples of the KAC-05020 are
scheduled to be available in Q2 2008.
For additional information, please contact Image Sensor Solutions, Eastman
Kodak Company at (585) 722-4385 or by email at imagers@kodak.com. For more
information on Kodak’s entire image sensor product line, please visit www.kodak.com/go/imagers.
About Kodak
As the world's foremost imaging innovator, Kodak helps consumers,
businesses, and creative professionals unleash the power of pictures and
printing to enrich their lives.
To learn more, visit http://www.kodak.com/, and our blogs: 1000words.kodak.com, and 1000nerds.kodak.com.
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Kodak and TrueSense are trademarks of Eastman Kodak Company.