Sony's SWIR Image Sensors Capturing Images Across Both the Visible and Invisible Light Spectrums
Sony Corp. announced the upcoming release of two new models of short-wavelength infrared (SWIR) image sensors for industrial equipment.
The new sensors are capable of capturing images in the visible and invisible light spectrum in the short-wavelength infrared range and boast a compact size made possible by the industry's smallest 5μm pixel size.
The new products employ Sony's original SenSWIR technology, in which photodiodes are formed on an indium gallium arsenide (InGaAs) compound semiconductor layer and are connected via Cu-Cu connection with the silicon (Si) layer which forms the readout circuit — a design which enables high-sensitivity over a broad range of wavelengths. This breakthrough yields a SWIR image sensor that is compact yet capable of delivering seamless image capture over a broad range of wavelengths covering from the visible to invisible light spectrum in the short-wavelength infrared range (wavelength: 0.4μm to 1.7μm).
Employing these products enables sensing even in wavelengths not visible to the human eye, making possible the development of cameras and testing equipment for various applications and contributing to the development of diversifying industrial equipment.
| Model name | Sample shipment date | Sample price (excluding tax) |
|
|---|---|---|---|
| IMX990 1/2-type (8.2 mm diagonal) approx. 1.34 effective megapixel SWIR image sensor | Ceramic PGA package with built-in thermoelectric cooling device | July 2020 | 900,000 JPY |
| Ceramic LGA package | June 2020 | 800,000 JPY | |
| IMX991 1/4-type (4.1 mm diagonal) approx. 0.34 effective megapixel SWIR image sensor | Ceramic PGA package with built-in thermoelectric cooling device | July 2020 | 500,000 JPY |
| Ceramic LGA package | June 2020 | 400,000 JPY | |
| Model name | IMX990 | IMX991 | |
|---|---|---|---|
| Number of effective pixels | 1296 (H) × 1032 (V) Approx. 1.34 megapixels |
656 (H) × 520 (V) Approx. 0.34 megapixels |
|
| Image size | Diagonal 8.2mm (1/2-type) | Diagonal 4.1mm (1/4-type) | |
| Unit cell size | 5μm (H) × 5μm (V) | 5μm (H) × 5μm (V) | |
| Frame rate | Full pixel | 8 bit: 130 fps 10 bit: 120 fps 12 bit: 70 fps |
8 bit: 250 fps 10 bit: 240 fps 12 bit: 130 fps |
| Power supply | Pixel | 2.2 V, 1.2 V | 2.2 V, 1.2 V |
| Analog | 3.3 V, 2.2 V | 3.3 V, 2.2 V | |
| Digital | 1.2 V | 1.2 V | |
| Interface | 1.8 V | 1.8 V | |
| Main functions | Global shutter, digital thermometer, ROI |
Global shutter, digital thermometer, ROI |
|
| Output | SLVS (2/4ch switching) | SLVS (2/4ch switching) | |
| Package | Ceramic PGA with built-in thermoelectric cooling 30.0mm (H) × 30.0mm (V) Ceramic LGA 20.0mm (H) × 16.8mm (V) |
Ceramic PGA with built-in thermoelectric cooling 30.0mm (H) × 30.0mm (V) Ceramic LGA 20.0mm (H) × 16.8mm (V) |
|
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