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Diagonal 6.0 mm (Type 1/3.0) 2.07M-Effective Pixel Primary Color
Progressive Scan CMOS Sensor for Cellular Phones
IMX011CQ
As megapixel class camera cellular phones become more widely used,
the shift to higher pixel counts in the cameras included in these cellular
phones has progressed.
Sony has now developed the IMX011CQ diagonal 6.0 mm (Type 1/3.0)
2.07M-effective pixel primary color progressive scan CMOS sensor.
In developing the IMX011CQ, at the same time as fully incorporating
Sony’s high picture quality know-how gained through Sony’s extensive
CCD development experience into a newly-developed 0.18 µm CMOS
sensor process, Sony also improved the device structure of the IMX006FQ
(see CX-NEWS Vol. 38) even further. As a result, this new sensor achieves
picture quality equivalent to that of CCD and reaches the high speed of
15 frames/s at 2.07M pixels. |
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IMX011CQ |
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* Diagonal 6.0 mm (Type 1/3.0) 2.07M
effective pixels
* High picture quality sensor for
mobile applications
* Built-in 10-bit A/D converter
* Extensive set of solutions |
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The IMX011CQ is a diagonal 6.0 mm
(Type 1/3.0) 2.07M-effective pixel CMOS
sensor that was developed for use in cellular
phone camera modules. It features
the industry’s smallest class unit pixel size
of 2.925 µm, and achieves both quality
equivalent to that of CCD and the high
speed of a 15 frames/s progressive scan
speed for 2.07M-pixel images.
The 1.28M-pixel IMX012CQ is under
development as another CMOS sensor of
the 2.925 µm unit pixel size generation.
Table 1 lists the device structure, and table
2 lists the imaging characteristics of both
the IMX011CQ and the IMX012CQ. |
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Improved Picture Quality |
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In developing this sensor, Sony created a
0.18 µm CMOS sensor process that fully
incorporates the know-how gained
through Sony’s CCD experience. In addition,
Sony also optimized the on-chip
microlenses and the pixel structure to
achieve the same high picture quality as
CCD with the same pixel size class. Furthermore,
since CMOS sensors do not
have a smear problem, it is possible to use
brighter lenses than can be used with
CCD. (See photograph 1.) |
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Application Circuit Example |
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The IMX011CQ integrates 10-bit A/D
converter, sensor control, and other circuits
on the same chip. At the same time
as significantly reducing the number of
external components, this allows the
IMX011CQ to be directly connected to a
DSP or other circuit with only digital signals.
(See figure 1.) |
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Extensive Set of Solutions |
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Sony provides an extensive set of solutions
for customer needs as IMX011CQ related
products, including the following.
• Independent sensors
• IU011 series (lens modules)
: sensor + optical system
• MCB770 series (camera modules)
: sensor + camera DSP + optical system
Since lenses optimized for the IMX011CQ
are used in these lens and camera modules,
these products achieve miniature
sizes, high resolution, and low shading. |
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•••• Mr.KAMEDA••••
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In this CMOS sensor development
project, we aimed at creating a
sensor whose image quality would
exceed that of CCD. I am pleased
that we succeeded in developing
an image sensor that is optimal,
in both performance and functionality,
for mobile equipment. I
strongly recommend that anyone
who has felt the limits of cellular
phone picture quality try the
IMX011CQ. Keep your eye on Sony
for an ever expanding line of
CMOS sensors. |
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See
all articles with figures and tables.  |
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Vol.40 |
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