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Sony Semiconductor Solutions Corporation
Tokyo, Japan - Sony Corporation ("Sony") is announcing the commercialization of a new 2.45 effective megapixel CMOS image sensor for automotive cameras, the IMX390CQV type 1/2.7. Sony will begin shipping samples in May 2017.
This image sensor is equipped with an LED flicker mitigation function that reduces flickering when shooting LED signs and traffic signals, as well as an HDR function capable of 120dB*2 wide dynamic range shooting. The IMX390CQV is the first*1 in the industry that can simultaneously mitigate LED flicker and shoot in HDR, a capability made possible by Sony's original pixel structure and exposure method. It also offers high-sensitivity performance capable of producing high-quality color images even in light conditions as low as 0.1 lux, which is equivalent to moonlight.
In recent years, LEDs have been widely adopted for traffic signs and signals, and also for car components such as headlights and brake lights. Another trend has been the need for automotive cameras to be able to capture high-quality images with a wide dynamic range, even in situations of dramatic contrast, such as when entering or exiting tunnels during daylight hours. This image sensor simultaneously uses both the LED flicker mitigation and HDR functions to deal with these types of situations, providing more precise recognition in the diverse real-world traffic environments that drivers encounter.
|Model name||Sample shipment
shipment date (planned)
|IMX390CQV type 1/2.7, 2.45 effective megapixel CMOS
image sensor for automotive cameras
|May 2017||March 2018||5,000 JPY|
The IMX390CQV is planned to meet the requirements of the AEC-Q100 Grade 2 automotive electronic component reliability tests this fiscal year. Moreover, with this new product, Sony also introduced a development process that complies with ISO26262 automobile functional safety standards, aiming to achieve a high level of design quality for an automotive product. The new sensor also meets the functional safety requirement level ASIL C. By meeting these standards and quality requirements for automobile components, the product is ready for use in forward-sensing cameras for Advanced Driver Assistance System (ADAS) and cameras for Camera Monitoring System (CMS) that show persons and obstacles on an in-car monitor with clear visibility, an application expected to grow as a substitute for conventional rearview mirrors.
This image sensor uses original Sony pixel structure and exposure methods to achieve the industry's first*1-ever simultaneous LED flicker mitigation and HDR functions. LED signs and the LED lights of cars in front and behind the vehicle can be accurately recognized while enabling wide dynamic range image capture with no highlight blowout or loss of shadow detail in situations of dramatic contrast, such as when entering or exiting tunnels.
The new image sensor is equipped with circuits possessing improved efficiency when converting electronic signals received from photodiodes to voltage signals. This delivers the highest sensitivity, approximately 1.5x that of conventional*3 image sensors for 2.0 megapixel class automotive cameras (according to Sony research). This capability enables the sensor to capture high-quality color images even in light conditions as low as 0.1 lux, which is equivalent to moonlight, enhancing camera reliability in rendering obstacles and persons.
Additionally, Euro NCAP, an organization involved in automotive safety rating in European countries, has decided to include nighttime pedestrians as targets for automatic braking collision avoidance systems in 2018. Going forward, this will drive increased demand for high-sensitivity, high-quality image capture capabilities in the automotive camera market.
Image comparison under 0.1 lux light condition: IMX390CQV (Left), Visual image (Right)
|Number of effective pixels||2017 (H) × 1217 (V), approx. 2.45 megapixels|
|Image size||Diagonal 6.67mm (type 1/2.7)|
|Unit cell size||3.0μm (H) × 3.0μm (V)|
|Frame rate||Full-HD1080p||AD10bit 60fps, AD12bit 40fps|
|Sensitivity (F5.6 standard value, 1/30 second storage time)||1,953mV (green pixel)|
|Dynamic range (EMVA1288 standard)||120dB
110dB (When HDR function and LED flicker mitigation function are used simultaneously)
|Saturation signal (minimum value)||700mV|
|Power supply||Analog||2.9 V|
|Interface||MIPI CSI-2 serial output (4 lane / 2 lane)|
|Package||96pin plastic BGA|
|Package size||10.0mm × 10.6mm|