Sony Semiconductor Solutions to Release CMOS Image Sensor for Automotive Cameras with Industry-Leading 17.42-Effective Megapixels
Wednesday, September 20, 2023
Delivering sophisticated sensing and recognition performance and contributing to safe, secure automated driving
ATSUGI, Japan, Sept. 12, 2023 /PRNewswire/ -- Sony Semiconductor Solutions Corporation (SSS) today announced the upcoming release of the IMX735, a new CMOS image sensor for automotive cameras with the industry's highest(*1) pixel count, at 17.42 effective megapixels.(*2) The new sensor product will support the development of automotive camera systems capable of sophisticated sensing and recognition performance, thereby contributing to safe, secure automated driving.
Model name Sample shipment Sample price
date (planned) (including
tax)
IMX735 1/1.17 type (13.70 mm diagonal) September 2023 30,000 yen*3
17.42-effective-megapixel
*
2
CMOS image
sensor
For automated systems to deliver automated driving, they must offer sophisticated, high-precision sensing and recognition performance, encompassing all 360 degrees of the environment around the vehicle. Accordingly, there is considerable demand for image sensors that can help achieve this level of performance and support the development of more advanced automotive camera systems.
The new sensor product achieves the industry's highest(*1) pixel count of 17.42 effective megapixels,(*2) enabling high-definition capture of far-off objects. Moreover, automated driving systems often use automotive cameras in combination with LiDAR and other sensing systems. While typical CMOS image sensors readout signals output from pixels one vertical line at a time, this product outputs signals horizontally, one row at a time. This means that automotive cameras employing this sensor can more easily synchronize with mechanical scanning LiDAR(*4), since their laser beams also scan horizontally. This better synchronization will improve the sensing and recognition capabilities of the automated driving system as a whole.
Furthermore, the new sensors' improved saturation illuminance, made possible by a proprietary pixel structure, and unique exposure method yield a wide dynamic range of 106 dB even when simultaneously employing high dynamic range (HDR) imaging and LED flicker(*)(5) mitigation. The dynamic range is even higher, at 130 dB, when using dynamic range priority mode. This creative design helps suppress highlight blowouts even in backlit conditions, enabling more precise object capture in road environments with significant differences in brightness, such as tunnel entrances and exits.
Main Features
-- Long-distance recognition delivered by industry-leading 17.42
megapixelsThanks to the industry's highest(*1) pixel count of 17.42
effective megapixels,(*2) the new sensor is capable of high-definition
capture, extending the object recognition range to greater distances and
thereby allowing better detection of road conditions, vehicles,
pedestrians and other objects. Early detection of far-away objects while
driving helps make automated driving systems safer.
-- Horizontal pixel signal output for easier synchronization with
mechanical-scanning LiDAR When reading signals from pixels, CMOS image
sensors generally do so in a vertical direction one line at a time. This
product, on the other hand, employs a readout method that outputs
signals horizontally one row at a time, making it easier to synchronize
with mechanical-scanning LiDAR, which also uses a horizontal scanning
method. This means that the information output from automotive cameras
equipped with this product can be integrated with LiDAR information
downstream on the system. This will improve the sensing and recognition
capabilities of the automated driving system as a whole.
-- Wide dynamic range even during simultaneous use of HDR and LED flicker
mitigationIn automobile driving, objects must be precisely detected and
recognized even in road environments with significant differences in
brightness, such as tunnel entrances and exits. Automotive cameras are
also required to suppress LED flicker, even while in HDR mode, to deal
with the increasing prevalence of LED signals and other traffic devices.
The proprietary pixel structure and unique exposure method of this
product improves saturation illuminance, yielding a wide dynamic range
of 106 dB even when simultaneously employing HDR and LED flicker
mitigation (when using dynamic range priority mode, the range is even
wider, at 130 dB). This design also helps reduce motion artifacts(*6)
generated when capturing moving subjects.
-- Compliant with standards required for automotive applicationsThe product
is qualified for AEC-Q100 Grade 2 automotive electronic component
reliability tests by mass production. Also, SSS has introduced a
development process compliant with the ISO 26262 road vehicle functional
safety standard, at automotive safety integrity level ASIL-B(D). This
contributes to improve automotive camera system reliability.
-- Cybersecurity required for automotive applications (optional)The product
can support cybersecurity features such as camera authentication via a
public-key algorithm to confirm CMOS image sensor authenticity, image
authentication to detect any tampering with acquired images, and
communication authentication to detect any tampering with control
communications.
Key Specifications
Model name
IMX735
Effective pixels 3,017 × 5,777 (H × V), 17.42
megapixels
Image size Diagonal 13.70 mm (1/1.17-type)
Unit cell size 2.1
m
×
2.1
m (
H
× V
)
Frame rate (all pixels)
3AD 45 fps, 4AD 40 fps
Sensitivity (standard value F5.6, 1/30 second cumulative)
880mV (Green Pixel)
Dynamic range (EMVA 1288 standard) 106 dB (with LED flicker
mitigation)
130 dB (dynamic range priority)
Power supply Analog
3.3V
Digital
0.8V
Interface
1.8V
Interface MIPI CSI-2 serial output (4 lane
/2 lane)
Package
236-pin plastic BGA
Package size 14.54 mm × 17.34 mm (H × V)
*1: Among CMOS image sensors for automotive cameras. As of announcement on September 12, 2023.
*2: Based on the image sensor effective pixel specification method.
*3: May vary depending on the volume shipped and other conditions.
*4: LiDAR senses objects using horizontal laser beam scanning delivered by mechanical moving parts. This is a common method used in the automotive sensing domain.
*5: LED flicker that can occur when capturing LED signage or traffic signals.
*6: Noise generated when capturing moving subjects with HDR.
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SOURCE Sony Semiconductor Solutions Corporation
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