IMX078CQK |
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■ Diagonal 7.81 mm (Type 1/2.3)12.40M-effective pixels (4072H ×
3044V)
■ Pixel size: 1.55 μm unit pixel
■ Supports 12.40M-pixel imaging at 42 frame/s
■ Back-illuminated CMOS image sensor
that achieves both higher
pixel counts and higher sensitivity
■ Achieves full HD video imaging:
1920H × 1080V pixels at 60
frame/s
* "Exmor R" is a trademark of Sony Corporation.
The "Exmor R" is a Sony's CMOS image
sensor with significantly enhanced imaging
characteristics including sensitivity and low
noise by changing fundamental structure of
"Exmor" pixel adopted column-parallel A/D
converter to back-illuminated type.
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 High-Speed Performance: 12.40M
Pixels at 42 Frame/s |
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In the IMX078CQK, to achieve faster
performance, Sony adopted column-parallel
A/D conversion method and incorporated a
576 Mbps LVDS high-speed output interface.
As a result, the IMX078CQK achieves the
high frame rate of 42 frame/s in all-pixel scan mode, despite being a 12.40M-effective
pixel CMOS image sensor. It is also capable
of producing full HD video (1920H x 1080V
pixels at 60 frame/s). |
Back-Illuminated CMOS Image
Sensor that Achieves both Higher
Pixel Counts
and Higher Sensitivity |
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To achieve the higher resolution of 12.40M
effective pixels, the IMX078CQK adopts
a 1.55 µm unit pixel. In conjunction with
this reduced pixel size, Sony optimized both
the back-illuminated structure and the pixel
structure itself, and achieved a sensitivity
of 1437 digits (typical). (See table 2.)
Furthermore, this device achieves a saturation
signal of 3089 digits (minimum) and, in terms
of numbers of electrons converted per unit
area, achieves an increase of about 10% over
current Sony products. |
Full HD Video (1920H x 1080V Pixels
at 60 Frame/s) and
Readout Modes
that Respond to a Variety of Needs
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Users can select from a wide range of drive
modes according to the application, for
example high-resolution still imaging or high-speed
video capture. (See table 3.)
Due to achieving both higher pixel counts and
higher speed, full HD video (1920H x 1080V
pixels at 60 frame/s) is now possible, and this
device achieves about 2.3 times more detailed
imaging at ordinary HD (720p) resolution.
The IMX078CQK provides two modes for full
HD video: mode 1 which strives for picture quality, and mode 9 which suppresses power
consumption. It also provides modes that
support high-speed imaging: mode 4 (240
frame/s) and mode 7 (1000 frame/s). |
Improved Color Reproducibility
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For the IMX078CQK, Sony developed
technology that improves the sensor's light
collecting efficiency. This technology
improves the mixed-color characteristics
and, for example, at a wavelength of 550 nm,
the red and blue signal levels are improved
by about 5 points compared to current Sony
products at F2.8. (See figure 1.) As a result,
color reproducibility is improved for a wide
range of lens rays. |
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•••• Mr. Nikai, Mr. Kukita and Mr. Araki••••
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We pushed forward with the development
of this product with the idea of making
it possible to create digital cameras that
could produce detailed and beautiful
images in a wide range of scenes, such
as nighttime and interior scenes, and that
furthermore can easily capture full HD
video.
We strongly recommend that you look into
Sony's high-speed and high-sensitivity
imaging technologies for your next camera. |
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See
all articles with figures and tables.  |
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Vol.63 |
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