In such cases where a high-speed moving subject is to be shot with standard CMOS Image sensors, focal plane distortion will occur and it might be a problem especially for the fields of industrial use. The new sensors feature a global shutter function and able to capture a high-speed moving image without focal plane distortion. Also the sensors have various functions including trigger mode or ROI (Region of interest) mode specially required in the fields of industrial use.
* Exmor is a trademark of Sony Corporation. The Exmor is a version of Sony's high performance CMOS image sensor with high-speed processing, low noise and low power dissipation by using column-parallel A/D conversion.
* Pregius is a trademark of Sony Corporation. The Pregius is global shutter pixel technology for active pixel-type CMOS image sensors that use Sony's low-noise CCD structure, and realizes high picture quality.
For industrial use, it is required to capture the exact shape of a high-speed moving subject. The existing CMOS image sensors have a rolling shutter as the electronic shutter function; therefore, focal plane distortion was inevasible in principle. A new pixel with analog memory was developed for the IMX174LLJ/LQJ and eliminated generation of the focal plane distortion by enabling to scan all pixel signals at once (referred to as "global shutter function" below). (See moving image 1.) The sensors accomplished high-picture quality combining with the column-parallel A/D conversion technology used for the existing Sony's CMOS Image sensors. (See photograph 1.)
For industrial use, it is required to capture the sequence of high-speed moving subject; therefore, frame rate is equally important as global shutter function. The IMX174LLJ/LQJ optimized the internal circuit and adopted LVDS 8ch output, and then realized high-speed imaging by achieving high frame rate with a maximum 164.5 frame/s using 10 bit ADC, and with a maximum 128.2 frame/s using 12 bit ADC. (See table 3.)
To meet market needs, there is a requirement to capture moving subject only in partial areas rather than a whole image view angle. ROI mode makes this possible. The IMX174LLJ/LQJ have the ROI mode and able to set at a maximum of 16 areas inside the effective pixels and output cropped partial pictures out of the image view angle. Also, since ROI mode scans less pixel count, even higher frame rate is achievable. (See photograph 2.)
The IMX174LLJ/LQJ are equipped with trigger mode, and the external pulse can control accumulation time. The sensors also have a pulse output function to indicate respective conditions during shutter operation and can be coordinated with peripheral circuits.
The IMX174LLJ/LQJ have internal register settings which can switch vertical scan direction (normal/inverted) of the sensors and support 2 frame set output mode utilizing high-speed frame rate. In this 2 frame set output mode, separate exposure time can be set for 2 consecutive frames, and each set of 2 frames can be handled as 1 set to automatically output consecutive images. This mode can generate a picture with a wide dynamic range as a result of the combination of multiple frames. Also the sensors support all-pixel scan (WUXGA), including UXGA, and full HD scan mode as the image data output format.
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Condition: 2000 lx F5.6 (UXGA image ADC 12 bit mode, 60 frame/s, internal gain 0 dB)
|Image size||Diagonal 13.4 mm (Type 1/1.2) (WUXGA mode)
Diagonal 11.9 mm (Type 1/1.35) (UXGA mode)
Diagonal 13.0 mm (Type 1/1.23) (full HD mode)
|Number of effective pixels||1936 (H) × 1216 (V)
Approx. 2.35M pixels
|Unit cell size||5.86 µm (H) × 5.86 µm (V)|
|Horizontal||Front: 0 pixels, rear: 0 pixels|
|Vertical||Front: 10 pixels, rear: 0 pixels|
|Input drive frequency||37.125 MHz / 74.25 MHz|
|Power supply voltage VDD (Typ.)||3.3 V / 1.8 V / 1.2 V|
|Sensitivity (F8)||Typ.||825 mV||1/30s accumulation|
|Saturation signal||Min.||850 mV||Tj = 60°C|
|Drive mode||Number of recommended recording pixels||ADC||Frame rate (Max.)|
|1920 (H) × 1200 (V)
Approx. 2.30M pixels
|10 bit||164.5 frame/s|
|12 bit||128.2 frame/s|
|UXGA||1600 (H) × 1200 (V)
Approx. 1.92M pixels
|10 bit||164.5 frame/s|
|12 bit||128.2 frame/s|
|Full HD||1920 (H) × 1080 (V)
Approx. 2.07M pixels
|10 bit||120.0 frame/s|
|12 bit||120.0 frame/s|
*Sony reserves the right to change products and specifications without prior notice.
The IMX174LLJ/LQJ are CMOS image sensors featuring a global shutter function developed for industrial use for the first time, and the product team put their best efforts to meet market demands. Please feel the excellence of the IMX174LLJ/LQJ providing high-picture quality and high-speed imaging without distortion.