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Image Sensor

Polarization Image Sensor with Four-Directional on-chip Polarizer and global shutter function

  • Diagonal 11.1 mm (Type 2/3) Approx. 5.07M-Effective Pixel Monochrome/Color Polarization CMOS Image Sensor
    IMX250MZR / MYR

    IMX264MZR / MYR

    Diagonal 17.6 mm (Type 1.1) Approx. 12.37M-Effective Pixel Monochrome/Color Polarization CMOS Image Sensor
    IMX253MZR / MYR

  • IMX250MZR / MYR

Sony’s polarization image sensor (polarization sensor) has a multi-directional polarizer which is formed on top of the photodiode of the image sensor chip*1. In addition to capturing brightness and color*2, this image sensor can also capture polarization information that cannot be detected by a normal image sensor. This sensor can be used in many applications in the industrial field, such as inspection when visibility and sensing are difficult.

*1 IMX250MZR/MYR (5.07M-Effective Pixel) were launched in September/December 2018.
IMX264MZR / MYR (5.07M-Effective Pixel) samples are on sale from October 2020.
IMX253MZR/MYR (12.37M-Effective Pixel) were launched in September/October 2019.

*2 IMX250MYR(color)/IMX264MYR(color)/IMX253MYR(color) only.

Features

Four directional polarizer is formed on the image sensor

Sony Semiconductor Solutions’ polarization sensor can capture a four directional polarization image in one shot by the four directional polarizer (Fig.1). It can calculate the direction and degree of polarization (DoP) based on the intensity of each directional polarization. Together with subsequent signal processing, it can capture the polarization information*3 in real time*4.

  • *3. Degree of Polarization and Direction of Polarization
  • *4. Subject to subsequent signal processing power
On-Chip Lens Polarizer photodiode

Fig.1. Structure

Global Shutter function

Industrial applications require imaging of fast-moving objects. However, existing CMOS image sensors are unable to accurately identify fast-moving objects, due to the focal plane distortion, which is caused by the rolling shutter function. The IMX250MZR/MYR, IMX264MZR/MYR, IMX253MZR/MYR address this issue by providing an analog memory inside each pixel and realizing the global shutter function to enable high-picture-quality without focal plane distortion.

High Frame Rate

The column-parallel A/D conversion technology of Sony's CMOS image sensors is used to realize high-speed imaging of up to 163.4frame/s (ADC 8 bit) for the IMX250MZR/MYR, 35.7 frame/s(ADC 12 bit) for the IMX264MZR/MYR and 68.3frame/s (ADC 8 bit) for the IMX253MZR/MYR. Increased processing speed is used for industrial applications.

ROI mode and trigger mode

IMX250MZR/MYR, IMX264MZR/MYR, IMX253MZR/MYR, are equipped with variety of functions necessary for industrial applications, such as ROI Mode and Trigger Mode. ROI Mode crops required areas. Up to 8 × 8 = 64 locations can be set with IMX250MZR/MYR, and 1 location with IMX264MZR/MYR. In addition to setting 8 × 8 = 64 locations, IMX253MZR/MYR provides greater freedom of specifying regions and allows overlap of specified regions. Various exposure methods are provided with the trigger mode, which controls the exposure time using an external pulse.

Specifications

Table 1 Device Structure
Item IMX250MZR/MYR IMX264MZR/MYR IMX253MZR/MYR
Features Four-directional Polarization
Image size Progressive scan mode : Diagonal 11.1 mm (Type 2/3) Full-HD mode : Diagonal 7.7 mm (Type 1/2.35)
Progressive scan mode : Diagonal 17.6 mm (Type 1.1)
Number of effective pixels 2464 (H) × 2056 (V)
Approx. 5.07 M pixels
4112 (H) × 3008 (V)
Approx. 12.37 M pixels
Unit cell size 3.45 µm (H) × 3.45 µm (V)
Optical blacks Horizontal Front: 0 pixels, rear: 0 pixels
Vertical Front: 10 pixels, rear: 0 pixels
Input drive frequency 37.125 MHz / 54.0 MHz / 74.25 MHz
Package 226-pin LGA
Supply voltage VDD (Typ.) 3.3 V / 1.8 V / 1.2 V
Table 2 Image Sensor Characteristics
Item IMX250MZR/MYR IMX264MZR/MYR IMX253MZR/MYR Remarks
Sensitivity (monochrome) Typ.[F8] 342 mV 3200 K, 706 cd/m2、
1/30s accumulation
Sensitivity (color) Typ.[F5.6] 430mV
Saturation signal Min. 1001 mV Tj = 60 °C
Table 3 Basic Drive Mode
Product name Drive mode Recommended number of recording pixels ADC
[bit]
Frame rate (Max.)
[frame/s]
IMX250MZR/MYR Progressive scan 2448 (H) × 2048 (V)
Approx. 5.01 M pixels
12 89.5
10 144.7
8 163.4
Full-HD 1920 (H) × 1080 (V)
Approx. 2.07 M pixels
12 120.0
10 120.0
IMX264MZR/MYR Progressive scan 2448 (H) × 2048 (V)
Approx. 5.01 M pixels
12 35.7
Full-HD 1920 (H) × 1080 (V)
Approx. 2.07 M pixels
12 60
IMX253MZR/MYR Progressive scan 4096 (H) × 3000 (V)
Approx. 12.29 M pixels
12 46.4
10 64.6
8 68.3

Fig.3. IMX250MZR/IMX264MZR/IMX253MZR Omnidirectional Extinction Ratio (Min.)

Subject to test and environment conditions

Sony' s Polarization technology

  • Polarsens is a CMOS Image Sensor pixel technology that has several different angle polarizer formed on chip during the semiconductor process allowing highly accurate alignment with pixel.

Sony reserves the right to change products and specifications without prior notice.

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