Sony Corporation (SONY) announced that it has officially launched the market for back-illuminated time-of-flight (ToF) distance measuring sensors that offer improved range-finding performance compared to its predecessors while reducing the size by only 1 / 2- And has VGA resolution, Sony will begin shipping samples from April 2018. Sony will use ranging technology ranging sensor collectively referred to as the DepthSense ® series, this is the first time the back-illuminated ToF technology is applied to DepthSense ® series product.
In addition to autonomous robots, drones and VR (Virtual Reality), markets such as AR (Augmented Reality) / MR (Mixed Reality) are gradually expanding, and in these fields, in order to accurately recognize gestures, objects, obstacle detection and the like , Must use a small precision range sensor.The sensor released at 10 micron pixel pitch for the development to make the structure more compact, far and near distance can be accurately ranging further extends the ToF image sensor in these areas of application .
Backlight ToF Distance Sensors 'IMX456QL'
In general, ToF refers to the distance from the object measured by the time of flight (time difference) when light reaches the object from the light source and then is reflected back to the sensor. ToF's image sensor is used, each pixel participating in ranging to obtain high Accuracy of the depth map. Only efficiently receive the reflected light, and high-speed ranging, in order to achieve high-precision ranging from distance.
The sensor combines two pixel technologies, one is to improve the reading accuracy of reflected light signal pixel technology, and the other is the back-illuminated CMOS image sensor pixel technology, thus greatly improving the light collection rate and ranging speed. Of ToF technology is difficult to measure the distance of about 10 meters, and the sensor is equipped with a high-sensitivity drive mode, even if the distance can be achieved with high precision ranging.The sensor with VGA resolution, between 30 cm to 1 m Close, the same can get high-precision depth map.
In addition, compared with laser scanning ranging method, the sensor can achieve high frame rate shooting, moving objects can effectively reduce the ranging error, to obtain a depth map in units of frames.
After Softkinetic Systems SA (Softkinetic) was acquired by Sony in 2015, Softkinetic later developed ToF ranging sensor technology as a subsidiary of Sony Semiconductor Solutions Ltd. On December 18, the company officially changed its name to Sony Depthsensing Solutions Holding SA / NV. The new company will accelerate technology convergence and begin with newly released sensors to reinforce the position of the DepthSense® family of products and to develop the company into a professional R & D location for ranging solutions to help enhance the commercial value of the product.
The main advantages of products:
1, using back-to-ToF technology, can achieve high-precision ranging distance
A combination of pixel technology to improve read accuracy of reflected optical signals and pixel technology for back-illuminated CMOS image sensors to achieve pixel spacings up to 10 microns, a single camera module enables high-precision ranging from 10 meters to 30 centimeters.
2, to reduce the error of moving objects ranging
Compared with the laser scanning ranging method, can achieve high frame rate shooting, moving objects can effectively reduce the ranging error,
3, to provide auxiliary camera research and development supporting software
Sample shipments will be accompanied by complementary camera R & D software (software, hardware)
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