[February 05, 2016] |
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Panasonic Develops Industry-First*1 123dB Simultaneous-Capture Wide-Dynamic-Range Technology Using an Organic-Photoconductive-Film CMOS Image Sensor
Panasonic (News - Alert) Corporation today announced that it has developed a new
wide-dynamic-range[1] technology that can improve
simultaneous-capture wide dynamic range[2] 100 times wider
than conventional results can deliver, using a CMOS image sensor with an
organic photoconductive film (OPF) *2. With an OPF CMOS
image sensor, the charge-storage function and photoelectric-conversion
function can be set independently. By utilizing this unique feature of
the OPF CMOS image sensor, overexposure can be prevented under bright
conditions with no time distortion against moving objects. Moreover, a
sharp and texture-rich image can be reproduced even under dark
conditions. These technologies enable high-speed, high-precision imaging
with no time distortion in high-contrast scenes. - more -
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This newly developed wide-dynamic-range technology enables accurate
imaging and reproduction of a richer color tone, even under
high-contrast conditions (backlit scene or under studio lighting). In
addition, synthesizing multiple exposure data captured at different
times is unnecessary, thus enabling the accurate imaging of moving
objects at high speed. The technology therefore enables high-speed,
high-precision, and wide-dynamic-range imaging and sensing.
This new technology offers the following advantages.
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Wide incident angle (60 degrees), high sensitivity, high saturation
and highly-functional circuits due to a unique feature of OPF that
allows an OPF for photoelectric-conversion and readout circuits to be
independent.
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123dB simultaneous-capture wide dynamic range (100x wider than that of
common silicon image sensors*3), while maintaining
conventional chip size, due to our original "simultaneous-capture
structure."
This wide-dynamic-range technology includes the following.
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OPF CMOS Image Sensor Design Technology, where the
photoelectric-conversion part and circuit part can be designed
independently.
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Dual-Sensitivity Pixel Technology featuring two sensitivity detection
cells (one for brightness; one for darkness) in each pixel, taking
advantage of the high-saturation performance and flexibility of the
OPF CMOS image sensor sensitivity setting in order to achieve a
simultaneous-capture wide dynamic range.
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Capacitive-Coupled Noise Canceller Technology that can cancel pixel
reset noise to improve S/N[3] characteristics when imaging
dark objects.
Panasonic holds 58 Japanese patents and 44 overseas patents (including
patents pending) related to this technology.
Panasonic presented some of these technologies at the international
academic conference: ISSCC (International Solid-State Circuit
Conference) 2016 that was held in San Francisco from January 31 -
February 4, 2016.
Notes: *1: As of February 2, 2016, based on data available
to Panasonic. *2: We employ an organic photoconductive film (OPF)
developed by FUJIFILM Corporation. *3: Comparison with Panasonic
silicon CMOS image sensor.
About Panasonic Panasonic
Corporation is a worldwide leader in the development of diverse
electronics technologies and solutions for customers in the consumer
electronics, housing, automotive, enterprise solutions and device
industries. Since its founding in 1918, the company has expanded
globally and now operates 468 subsidiaries and 94 associated companies
worldwide, recording consolidated net sales of 7.715 trillion yen for
the year ended March 31, 2015. Committed to pursuing new value through
innovation across divisional lines, the company uses its technologies to
create a better life and a better world for its customers. To learn more
about Panasonic: http://www.panasonic.com/global
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