QHY990/QHY991 SWIR Camera
QHY990/QHY991 SWIR Camera
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QHY990/991 Series are scientific short wavelength infrared cameras. With Sony IMX990/IMX991 InGaAs sensor, a square 5um*5um pixel array and 1.31M/0.4M effective pixels. The chips have wide waveband (0.4um-1.7um) with high sensitivity. QE is up to 77% at 1200nm.
By using the Cu-Cu interconnect technology, the sensor has very low FPN noise and a low defect pixel ratio.
QHY990/991 Series cameras include 25mm filter holders. 25mm filter is a very common filter type for lab applications. The SWIR filter can be easily installed on the camera with a 17.5mm C-mount B.F.L.
QHY990Pro II have both air cooling and liquid cooling version (customization). The air cooling can get the -35C below ambient. The liquid cooling version can get -45C below ambient with normal temperature liquid and can get -60 to -80C below ambient with cold liquid. Typically, the InGaAs sensor has a high dark current than Silicon-based material. If you need long exposure (eg. >5 sec), we recommend the liquid cooling version.
| Model | QHY990 | QHY990Pro II | QHY991 |
| CMOS Sensor | Sony IMX990 | Sony IMX990 | Sony IMX991 |
| FPA Material | InGaAs | InGaAs | InGaAs |
| Pixel Size | 5.0um*5.0um | 5.0um*5.0um | 5.0um*5.0um |
| Total Pixels(includes optic black pixels) | 1392*1052 | 1392*1052 | 752*520 |
| Effective Pixel Area | 1296*1032 | 1296*1032 | 656*520 |
| Effective Pixels | 1.3 Megapixels | 1.3 Megapixels | 0.4 Megapixels |
| Effective Image Area | 1/2 inch | 1/2 inch | 1/4 inch |
| AD Sample Depth | 12-bit A/D | ||
| Shutter Type | Global Shutter | ||
| QE | 77% @ 1200nm | ||
| Full Well | Typical 120ke- | ||
| Readout Noise | The measured data is after Bias Frame FPN calibration Typical 150 e- at lowest gain Typical 50e at a middle gain Typical 20e- at high gain |
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| Frame Rate | 66FPS@Full Resolution 12bit137FPS@480Line 12bit 256FPS@240Line 12bit 518FPS@100Line 12bit 925FPS@40Line 12bit 1150FPS@20Line 12bit |
USB3.0 66FPS@Full Resolution 12bit137FPS@480Line 12bit 256FPS@240Line 12bit 518FPS@100Line 12bit 925FPS@40Line 12bit 1150FPS@20Line 12bit2*10G TBACameraLink TBA |
133FPS @ Full resolution 12bit254FPS @ 240Line 12bit 510FPS @ 100Line 12bit 700FPS @40Line 12bit 830FPS @20Line 12bit |
| Trig Function | One Hardware Trig-In Socket (RCA type).Opto-isolated | ||
| Computer Interface | USB3.0 | USB3.0 2*10Gigabit Fiber Optic Interfaces 2*CameraLink Interfaces |
USB3.0 |
| Lens Interface | C-Mount | ||
| Telescope Interface | 1.25inch Adapter | ||
| Basic Interface | Flange with 6-M3 screw holes | ||
| 25mm Filter Adapter | Support D=25mm and D=25.4mm filter | ||
| Back Focal Length | C_Mount,1.25inch adapter 17.5mm with 25mm filter adapter, 14.5mm without filter adapter Basic Interface 12.5mm |
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| Liquid Cooling | – | Supported (Customization) | – |
| Cooling System | Dual Stage TE Cooler-Air Cooling version Maximum -35C with ambient(Test temperature +20°) |
Dual Stage TE Cooler-Air Cooling version Maximum -35C with ambient(Test temperature +20°)Liquid Cooling version Maximum -45C with ambient by using normal water -60C to -80C with ambient by using cold liquid |
Dual Stage TE Cooler-Air Cooling version Maximum -35C with ambient(Test temperature +20°) |
| Recommended flow rates for water-cooled versions | – | 1.6ml/s | – |
| Body length | 92.5mm | 92.5mm | |
| Weight | About 520g | About 1000g | About 520g |
