Diagonal 9.33 mm (Type 1/1.7) 12.40M-Effective Pixel Color CMOS Image Sensor

photo_IMX226CQJ

Back-illuminated CMOS Image Sensor for Security Cameras and Industrial Applications Supports 4K High Resolution and High Sensitivity

Sony developed approximately 12.40M pixels back-illuminated CMOS image sensor, "IMX226CQJ", supporting Type 1/2 and 4K (approximately 17:9 ratio).
This image sensor has advantages in both high resolution and high sensitivity with back-illuminated structure 1.85 µm unit pixel, and suits for next generation of 4K security camera.

  • Back-illuminated structure 1.85 µm unit pixel
  • Higher resolution 4K video imaging mode (4096 H × 2160 V, 60 frame/s)
  • Higher sensitivity and lower noise
  • Favorable incident light angle characteristics and F-number dependency

Exmor R
* 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.

STARVIS
* STARVIS is a trademark of Sony Corporation. The STARVIS is back-illuminated pixel technology used in CMOS image sensors for surveillance camera applications. It features a sensitivity of 2000 mV or more per 1 µm2 (color product, when imaging with a 706 cd/m2 light source, F5.6 in 1 s accumulation equivalent), and realizes high picture quality in the visible-light and near infrared light regions.

Higher Resolution

The IMX226CQJ employs approximately 12.40M effective pixels and supports 12M (4:3 ratio) and 4K (approximately 17:9 ratio). High quality picture and fast video imaging is possible at 4K 60 frame/s with Type 1/1.9 approximately 9.03M pixels (approximately 17:9 ratio), and the specifications serve best for next generation of 4K high resolution security camera.
This image sensor provides higher quality picture and clearer imaging than full HD output image of the existing front-illuminated structure 3.75 µm unit pixel, the IMX185LQJ*1. (See photograph 1 and photograph 2.)

*1: See the New Products section released in 2013 August.

Higher Sensitivity and Lower Noise

For the image sensor with higher pixel counts supporting 4K video or other formats, the reduced pixel size might cause sensitivity deterioration, which is crucial for security camera purpose.
The IMX226CQJ has back-illuminated structure 1.85 µm unit pixel and achieves a big difference in its high sensitivity and low noise compared with the existing front-illuminated CMOS image sensor while it keeps 4K and the image size of Type 1/2.

Favorable Incident Light Angle Characteristics and F-number Dependency

The light collecting characteristics were optimized to maximize the light collecting efficiency of the back-illuminated structure. As a result, it obtained better conditions in incident light angle characteristics (See figure 1.) and F-number dependency (See figure 2.) than the existing IMX136LQJ with front-illuminated structure 2.8 µm unit pixel.
These characteristics are extremely important for security camera which often opens lens diaphragm during night-time shooting. And at the lower F-number better low light performance is possible than front-illuminated structure 2.8 µm unit pixel, the IMX136LQJ. (See photograph 3.)
Also, optical characteristics of this magnitude mean that the sensor can handle high power zoom lenses.

*If the mouse cursor changes over the photo, you can click to see the larger version in a new window.

Photograph 1 Resolution Comparison (2000 lx, 0 dB)

Photograph 1-1

IMX226CQJ

Photograph 1-2

Sony's existing IMX185LQJ

Photograph 2 Resolution Comparison (F11, 0 dB)

Photograph 2-1

IMX226CQJ

Photograph 2-2

Sony's existing IMX185LQJ

Photograph 3 Low Light Sensitivity Comparison (0.68 lx, F0.95, 12 bit, 60 fps, 45 dB)

Photograph 3-1

IMX226CQJ

Photograph 3-2

Sony's existing IMX136LQJ

Figure 1 Incident Light Angle Characteristics

Figure 1

Figure 2 F-number Dependency

Figure 2

Table 1 Device Structure
Item IMX226CQJ
Output image size Diagonal 9.33 mm (Type 1/1.7) 12M 4:3 ratio
Diagonal 8.61 mm (Type 1/1.9) 4K Approx. 17:9 ratio
Number of effective pixels 4072 (H) × 3046 (V) Approx. 12.40M pixels
4152 (H) × 2174 (V) Approx. 9.03M pixels
Unit cell size 1.85 µm (H) × 1.85 µm (V)
Optical
blacks
Horizontal Front: 96 pixels, rear: 0 pixels
Vertical Front: 16 pixels, rear: 0 pixels
Input drive frequency 72 MHz
Package 128-pin LGA
Power supply voltage VDD (Typ.) 2.9 V / 1.8 V / 1.2 V
Table 2 Image Sensor Characteristics
Item IMX226CQJ Remarks
Sensitivity (F5.6) Typ. 280 mV 1/30s accumulation
Saturation signal Min. 810 mV Tj = 60°C
Table 3 Basic Drive Mode
Drive mode Number of recommended recording pixels ADC Frame rate
12M 4:3 ratio 4000 (H) × 3000 (V)
12.00M pixels
10 bit 40 frame/s
12 bit 35 frame/s
4K Approx. 17:9 ratio 4096 (H) × 2160 (V)
Approx. 8.85M pixels
10 bit 60 frame/s
12 bit 30 frame/s
Full HD 2048 (H) × 1080 (V)
Approx. 2.21M pixels
10 bit 60 frame/s

*Sony reserves the right to change products and specifications without prior notice.

VOICE

group photo_Designers

We designed and commercialized the IMX226CQJ, taking initiative in higher pixel counts and 4K video in security camera industry. This image sensor was developed by our project members striving to utilize Sony's back-illuminated structure for the higher resolution and sensitivity. We can heartily recommend the IMX226CQJ from the Sony's Type 1/2 CMOS image sensor series for high performance security cameras.

Designers
Mr. Mori  Mr. Makiyama  Mr. Yagi
Mr. Kasai  Ms. Tamada  Mr. Yokoyama