Sony Semiconductor Solutions Corporation has developed the CMOS image sensor "IMX385LQR" for industrial applications. This new image sensor realizes high sensitivity approximately twice that of the existing product (IMX185LQJ)*1.
The IMX385LQR pursues picture quality at low illuminance most needed by cameras for industrial applications and mounts pixels with a sensitivity of 2350 mV, which is the highest sensitivity among Sony image sensors for industrial applications*2. In addition, SNR1s of 0.13 lx*3, which is the highest performance among Sony Full HD-compatible image sensors for industrial applications, is achieved by mounting an internal programmable gain amplifier and high conversion gain pixels. Superior performance as an image sensor for industrial applications is further achieved by combining HDR (High Dynamic Range) technology with technology that improves sensitivity in the near-infrared light region.
*1: See the New Product Information released in August 2013.
*2: As of January 2017 (based on in-house research)
*3: Low illuminance performance index advocated by Sony for image sensors for industrial applications
* 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.
Cameras for industrial applications are required to produce color images with high picture quality even in dark conditions. High sensitivity characteristics of 2350 mV, which is approximately twice that of the existing Type 1/2 Full HD product (IMX185LQJ) with the same 3.75 µm pixel size have been achieved by mounting a new pixel with the highest sensitivity among Sony image sensors for industrial applications.
In addition, mounting high conversion rate pixels achieved SNR1s of 0.13 lx, which is the highest performance among Sony Full HD-compatible image sensors for industrial applications.
Furthermore, combination with technology for improving sensitivity in the near infrared light region also improves picture quality under near-infrared LED lighting.
The IMX385LQR supports a DOL (digital overlap) -type HDR function. This function uses a method that outputs the data for three frames with different storage times line by line instead of frame by frame, enabling improvement of picture quality especially under low illuminance when compared to the existing multiple exposure HDR function.
The IMX385LQR is equipped with two different types of output interface (low-voltage LVDS serial, MIPI CSI-2) to meet the diverse needs of customers. The low-voltage LVDS serial interface has a maximum output data rate of 445.5 Mbps/ch, and the number of output channels can be selected from 1 ch, 2 ch, or 4 ch. The MIPI CSI-2 interface has a maximum output data rate of 742.5 Mbps/lane, and the number of output lanes can be selected from 1 lane, 2 lanes, or 4 lanes.
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Condition: 450 lx F2.0 (ADC12 bit mode, 30 frame/s, Internal gain: 0 dB)
Condition: 1 lx F2.0 (ADC12 bit mode, 30 frame/s, Internal gain 30 dB + High conversion efficiency mode)
|Output image size||Diagonal 8.35 mm (Type 1/2) aspect ratio 16:9|
|Number of effective pixels||1945 (H) × 1097 (V) approx. 2.13M pixels|
|Unit cell size||3.75 µm (H) × 3.75 µm (V)|
|Optical blacks||Horizontal||Front: 4 pixels, rear: 0 pixels|
|Vertical||Front: 16 pixels, rear: 0 pixels|
|Input drive frequency||37.125 MHz, 74.25 MHz|
|Output Interface||Sub-LVDS (444.5 Mbps / ch, Max. 4 ch)
MIPI CSI-2 (742.5 Mbps / lane Max. 4 lane)
|Supply voltage VDD (Typ.)||3.3 V / 1.8 V / 1.2 V|
|Sensitivity (F5.6)||Typ.||2350 mV||1/30s accumulation|
|Saturation signal||Min.||1210 mV||Tj = 60 °C|
|Drive mode||Recommended number of recording pixels||Frame rate
|All-pixel scan (12 bit)||1920 (H) × 1080 (V)||60||12|
|All-pixel scan (12 bit)||1920 (H) × 1080 (V)||30||12|
|All-pixel scan (10 bit)||1920 (H) × 1080 (V)||120||10|
|All-pixel scan (10 bit)||1920 (H) × 1080 (V)||60||10|
|All-pixel scan (10 bit)||1920 (H) × 1080 (V)||30||10|
|Drive mode||Recommended number of recording pixels||Frame rate (through synthesis)
|All-pixel scan (12 bit)
DOL *1 2F sequential control
|1920 (H) × 1080 (V)||30||12|
|All-pixel scan (10 bit)
DOL *1 3F sequential control
|1920 (H) × 1080 (V)||30||10|
*1 There are restrictions on the storage time setting values when using DOL.
*Sony Semiconductor Solutions Corporation reserves the right to change products and specifications without prior notice.
Project members focused on improving the S/N ratio in addition to sensitivity in order to improve visibility in low-illuminance environments, and worked together to develop the IMX385LQR. This CMOS image sensor achieved the highest performance at low illuminance among Sony Type 1/2 Full HD image sensors for industrial applications.
The IMX385LQR is a new addition to Sony's Type 1/2 CMOS image sensor series, and we are confident that it will meet your expectations.
Designers Mr. Shimizu , Mr. Ikeuchi