Uncooled intensified scientific camera
Zhongke Yuanzi's ICMOS camera directly couples a CMOS image sensor to an image intensifier through a fiber-optic taper. This intensified camera series offers compact construction, small size, low power consumption and low distortion, providing low-light, high-resolution, wide-dynamic-range, large-area image output. Customization is available for different applications. Coupling an image intensifier to a CMOS sensor through relay optics provides two key benefits. First, selecting suitable intensifier input windows, photocathodes and filters extends the ICMOS spectral response from visible light to X-rays, ultraviolet or near infrared for different uses. Second, sensitivity is greatly improved to 10⁻⁴lx, addressing low-light imaging limitations of ordinary cameras. With the intensifier as its core, the camera uses pulsed high voltage to control optical-electrical-optical-electrical conversion and amplify weak light. Advanced optomechanical and electronic integration combines the intensifier, picosecond/nanosecond gating module, timing module, fiber-optic taper and CMOS sensor. Short optical gating supports synchronized weak-signal detection in low-light imaging, range gating, combustion diagnostics, time-domain Raman spectroscopy, three-dimensional imaging and fluorescence-lifetime measurements.
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Overview
Specifications
| Parameter | Value |
|---|---|
| CMOS Camera - Resolution | 2048*2048 |
| CMOS Camera - Pixel size | 6.5 um × 6.5 um |
| CMOS Camera - Sensor Dimensions | 1.2" |
| CMOS camera - Sensor active area | 13.3*13.3mm /18.8 diagonal |
| CMOS camera - Acquisition frame rate | 32fps@full frame |
| CMOS Camera - Pixel Depth | 8bit / 12bit / 16bit HDR |
| CMOS Camera - Exposure Mode | Global reset |
| CMOS Camera - Exposure Time | 12μs-60s |
| CMOS camera - Full well capacity [HCG] | 12.1 ke- |
| CMOS camera - Full well capacity [LCG] | 46.4 ke- |
| CMOS camera - Full well capacity [HDR] | 35.8 ke- |
| CMOS camera - Readout noise [HCG] | 5.4 e- |
| CMOS camera - Readout noise [LCG] | 21.02 e- |
| CMOS camera - Readout noise [HDR] | 2.89 e- |
| CMOS camera - Conversion gain [HCG] | 2.69 e-/ADU |
| CMOS camera - Conversion gain [LCG] | 15.49 e-/ADU |
| CMOS camera - Conversion gain [HDR] | 0.55 e-/ADU |
| CMOS Camera - Dark Current | 8e-/s/pix |
| CMOS Camera - Signal-to-noise ratio [HCG] | 40.8 dB |
| CMOS Camera - Signal-to-noise ratio [LCG] | 46.7 dB |
| CMOS Camera - Signal-to-noise ratio [HDR] | 45.5 dB |
| CMOS Camera - Cooling method | Passive cooling |
| Image intensifier - Photocathode | Hi QE GaAs / S25 / S20 |
| Image intensifier - Equivalent background illuminance [Photocathode ：Hi QE GaAs] | ＜0.25μlx |
| Image intensifier - Equivalent background illuminance [Photocathode ：S25] | ＜0.25μlx |
| Image intensifier - Equivalent background illuminance [Photocathode ：S20] | ＜0.25μlx |
| Image intensifier - Spectral range [Photocathode ：Hi QE GaAs] | 350-900nm |
| Image intensifier - Spectral range [Photocathode ：S25] | 400-900nm |
| Image intensifier - Spectral range [Photocathode ：S20] | 200-700nm |
| Image intensifier - Effective aperture [Photocathode ：Hi QE GaAs / S25 / S20] | ϕ18mm |
| Image intensifier - Coupling ratio [Photocathode ：Hi QE GaAs / S25 / S20] | 1:1 |
| Image intensifier - Gain [Photocathode ：Hi QE GaAs / S25 / S20 / Single-layer MCP] | ＞10000cd/㎡/lx( Single-layer MCP ) |
| Image intensifier - Gain [Photocathode ：Hi QE GaAs / S25 / S20 / Double layer MCP] | ＞100000cd/㎡/lx( Double layer MCP) |
| Image intensifier - Resolution [Photocathode ：Hi QE GaAs / S25 / S20 / Single-layer MCP] | 55-65lp/mm( Single-layer MCP ) |
| Image intensifier - Resolution [Photocathode ：Hi QE GaAs / S25 / S20 / Double layer MCP] | 25-35lp/mm( Double layer MCP) |
| Image intensifier - Phosphor screen [Photocathode ：Hi QE GaAs / S25 / S20] | P43/P46 |
| Image intensifier - Minimum optical gate width [Photocathode ：Hi QE GaAs / S25 / S20] | 3ns-3000 Model 500ps-500 Model |
| Image intensifier - Repetition frequency [Photocathode ：Hi QE GaAs / S25 / S20 / @3ns] | Maximum 300kHz@3ns |
| Image intensifier - Repetition frequency [Photocathode ：Hi QE GaAs / S25 / S20 / @500ps] | 10kHz@500ps |
| Synchronization/gating circuit - Operating mode | Continuous high level:set the channel to continuously output a 4V DC signal; internal trigger mode:set the channel to output a 0.02Hz-200kHz pulse signal with adjustable pulse width and delay; external trigger mode:for an external trigger input of 0.1Hz-300kHz, output a pulse signal at the same frequency with adjustable pulse width and delay |
| Synchronization/gating circuit - Synchronization interface | External trigger Input *1； Synchronous output *2 |
| Synchronization/gating circuit - External trigger input specifications | Trigger threshold: 0.25-3.3V adjustable; input impedance: 50Ω/10kΩ configurable; minimum trigger width: 3ns |
| Synchronization/gating circuit - Synchronization signal output | 2 output channels: output amplitude 4V, impedance 50Ω; channel signal parameters: pulse width 3ns-10s, minimum adjustment resolution 10ps; channel delay 0-10s, minimum resolution 10ps |
| Synchronization/gating circuit - Width setting | 2ns-10s， Resolution 10ps |
| Synchronization/gating circuit - External trigger delay | <85ns |
| Synchronization/gating circuit - Internal trigger frequency | 0-300kHz |
| Synchronization/gating circuit - Timing jitter | Interchannel jitter and external-trigger jitter ＜35ps rms |
Applications
Key Features
Datasheet
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