Sony Commercializes APS-C size CMOS Image Sensor with Industry-leading 12.47 Effective Megapixel Resolution

August 20, 2007
Sony Commercializes APS-C size CMOS Image Sensor with Industry-leading 12.47 Effective Megapixel Resolution
"IMX021" CMOS Image Sensor

Sony today announced the commercialization of "IMX021", an APS-C size (diagonal: 28.40mm/Type 1.8) 12.47 effective megapixel ultra-high speed, high image quality CMOS image sensor designed to meet the increasing requirement for rapid image capture and advanced picture quality within digital SLR cameras. Sony will position "IMX021" as a key device capable of generating new added value in the high-growth digital SLR camera market, actively promoting its use within Sony and externally.

One of the main strengths of CMOS image sensors is their potential for system integration, enabling both analog and digital circuits to be combined on the same chip. "IMX021" maximizes these advantages, while also incorporating Sony's newly developed "Column-Parallel A/D Conversion Technique", providing each column within the sensor with its own A/D converter.

This system enables analog signals transferred from the Sensor's vertical signal lines to be A/D converted directly, over the shortest possible distance. It also minimizes image degradation caused by the noise that arises during analog processing, while at the same time delivering an extremely high signal conversion speed (in all-pixel scan mode) of 10.39 frame/s (12 bit).

Furthermore, since processing is performed in parallel for each column, even if the number of pixels or the frame rate increases, A/D conversion can be performed at significantly lower frequencies than with conventional non-parallel circuit structures. Consequently, high picture quality digital signals can be processed without the noise interference that results from high frequency signals.

The "Column-Parallel A/D Conversion Technique" aligns both digital and CDS circuits alongside each column. Column-parallel digital CDS circuits reduce not only pixel noise, but also the noise and inter-column processing variations that can affect analog CDS circuits. These circuits also limit A/D converter fluctuations. With this dual noise cancelling technology realizing high-precision noise reduction across both analog and digital circuits, the "IMX021" image sensor allows signals to be transferred, with limited noise, to the image processing circuits of the camera unit itself. This makes it ideally suited for the development of high image quality digital SLR cameras.

The enhanced quality images generated by "IMX021" are the result of its advanced noise cancelling features based on a unique circuit structure, its pixel array micro-fabrication technologies, and its cleaning and color-filtering capabilities - encapsulating the range of imaging expertise that Sony has accumulated throughout its history of CCD development.

"IMX021" production will be carried out at Sony Semiconductor Kyushu Corporation's Kumamoto Technology Center.

Source: Sony

Explore further: The Compound Eye lossless digital imaging system

Related Stories

The Compound Eye lossless digital imaging system

August 6, 2015

The imaging process is often affected by the field of view, wavefront aberration, ambient light, as well as the resolution of the optical imaging system and detector. In such cases, the image information of the object cannot ...

At CES: Color-changing E Ink film for display experience

January 7, 2015

Architects and designers create "experiences" and use the visual language of display through materials, colors, shapes and light. Their goals, though, are often limited in what they can achieve as the architectural elements ...

Now you see it: Sony picture taken with curved CMOS sensor

July 8, 2014

People are talking about Sony's first curved-sensor photo shown on Nikkei.jp, seen as a big deal because the company's technology signifies better-quality images and possibly cheaper lenses to come. This is capturing attention ...

Sony inspired by biomimicry develops curved CMOS sensors

June 14, 2014

Sony's advance in image sensors appears quite natural: the company has developed a set of curved CMOS image sensors based on the curvature of the eye. A report on the sensors in IEEE Spectrum said that, "in a bit of biomimicry," ...

Recommended for you

Interactive tool lifts veil on the cost of nuclear energy

August 24, 2015

Despite the ever-changing landscape of energy economics, subject to the influence of new technologies and geopolitics, a new tool promises to root discussions about the cost of nuclear energy in hard evidence rather than ...

Smart home heating and cooling

August 28, 2015

Smart temperature-control devices—such as thermostats that learn and adjust to pre-programmed temperatures—are poised to increase comfort and save energy in homes.

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.