ITR3CMOS26000KPA Low Light Imaging/Semiconductor Cooled Camera

Product Introduction

The ITR3CMOS series is designed for low-light and long-exposure scientific/industrial imaging, featuring Sony Exmor and other high-performance CMOS sensors with dual-stage thermoelectric (TEC) deep cooling architecture. It is optimized for fluorescence/chemiluminescence, spectral/UV detection, semiconductor and material analysis applications. The built-in anti-fogging optical structure and closed-loop temperature control can reduce sensor operating temperature by approximately 40 °C below ambient and stabilize to the set value within minutes (model dependent), ensuring low dark current and noise while maintaining quantum efficiency and imaging consistency.

The camera uses USB3.0 (5 Gbit/s) as the primary link, supporting 8/12/16-bit data output and long-term exposure (typically up to 3600 s, model dependent). It provides free-running, software/hardware triggering and multi-camera synchronization, with industrial-grade I/O for integration with external light sources/motion platforms/acquisition systems. Optional multi-interface versions (such as 10GigE/Camera Link, model dependent) are available to meet different cabling and bandwidth requirements. Includes ToupView software and cross-platform SDK (Windows / Linux / macOS / Android) for easy system integration and secondary development.

Key Features

High-sensitivity low-noise CMOS sensors (Sony Exmor and others, model dependent), covering visible to near-UV applications
Dual-stage TEC deep cooling: typical temperature difference ΔT ≈ 40 °C (below ambient), significantly reducing dark current
Closed-loop temperature control and temperature programming; temperature can stabilize to set value within short time (model dependent)
Anti-fogging/anti-condensation optical structure, maintaining window and sensor cleanliness during low-temperature and long-exposure conditions
Optional protective windows: IR-CUT / dual AR (model and application dependent)
Bit depth and dynamic range: 8 / 12 / 16-bit data output (model dependent), enhancing weak signal gradation
Long exposure capability: typically up to 3600 s (model dependent), suitable for extremely low-light imaging
Data and interfaces: USB3.0 high-speed link; optional 10GigE / Camera Link versions (model dependent)

Trigger modes: free-running, software trigger, external hardware trigger; supports multi-camera and peripheral timing synchronization
Image functions: ROI/windowing, digital binning, mirroring, Gamma/LUT, etc. (model dependent)
Industrial-grade I/O: optically isolated trigger/strobe output and programmable GPIO (model dependent)
Spectral/band adaptation: visible / NIR / UV (depending on sensor and window materials)
Electrical and reliability: low-noise power supply and anti-interference design, supporting long-term continuous stable operation
Supporting software: ToupView; provides Windows / Linux / macOS / Android SDK, compatible with common third-party interfaces
Application fields: fluorescence/chemiluminescence, spectral/UV detection, semiconductor and material analysis, low-light microscopy, etc.

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Product Details

Key Parameters
Model	ITR3CMOS26000KPA
Sensor	Sony IMX571BQR-C
Effective Pixels / Resolution	26MP (6224×4168)
Frame Rate (Full Resolution and Key Resolution Modes)	14 fps@6224×4168; 37 fps@3104×2084; 110 fps@2064×1388
Shutter Type	Rolling Shutter
Color Type	Color
Imaging Performance
Pixel Size	3.76 µm × 3.76 µm
Sensor Size	23.48 mm × 15.67 mm
Diagonal	1.8" (28.29 mm)
Dynamic Range	81.78 dB
Bit Depth	8-bit/16-bit
Sensitivity	485 mV
Interface & Mechanical
Data Interface	USB3.0
GPIO	1x optically isolated input, 1x optically isolated output, 2x non-isolated I/O ports
Lens Mount	C-mount
Dimensions	80 mm × 80 mm × 101.5 mm
Weight	860 g
Power Supply	USB3.0 interface power/DC12V power
Environment & Certification
Operating Temperature / Humidity	-10 °C ~ +50 °C / 20%-80% non-condensing
Storage Temperature / Humidity	-30 °C ~ +70 °C / TBD
OS Support	Windows/Linux/macOS/Android multi-platform SDK (native C/C++, C#/VB.NET, Python, Java, DirectShow, TWAIN, etc.)
Certification	CE/FCC

Product Overview

ITR3CMOS26000KPA is a scientific-grade cooled camera designed for low-light imaging and long exposure applications. It features the high-performance Sony IMX571BQR-C image sensor with the following characteristics:

High Sensitivity Imaging: 26MP (6224×4168) resolution with 3.76 µm × 3.76 µm pixel size and 23.48 mm × 15.67 mm sensor size, ensuring effective capture of weak signals.

Deep Cooling Technology: Dual-stage semiconductor deep cooling, 42 °C below ambient temperature , effectively reducing dark current and thermal noise with typical dark current of 0.07 mV @ -20 °C .

Ultra-Long Exposure Time: Maximum exposure time up to 1 hour , supporting long integration imaging for extremely weak signal detection.

Anti-Condensation Design: Features sealed chamber and anti-condensation window design to ensure no moisture formation on sensor surface during low-temperature operation, maintaining stable image quality.

Precise Temperature Control: Adjustable cooling temperature allows users to balance low noise with quantum efficiency according to requirements, optimizing imaging performance.

High-Speed Data Transmission: Utilizes USB3.0 interface with hardware buffer to ensure smooth and stable transmission of large data volumes.

High Bit Depth Output: Supports 8-bit/16-bit bit depth output with 81.78 dB dynamic range, preserving more image details.

Dual Power Supply Design: USB3.0 interface power/DC12V power ensures stable operation of the cooling system.

Core Performance Indicators

Cooling Capability

42 °C below ambient temperature

Maximum Exposure Time

Up to 1 hour

Typical Dark Current

0.07 mV @ -20 °C

Resolution

26MP (6224×4168)

Scientific Application Features

Astronomical Observation

Ultra-low noise and long exposure capability suitable for capturing dim targets such as deep-sky objects, comets, and nebulae.

Spectral Analysis

High dynamic range and linear response for precise spectral information recording, suitable for Raman spectroscopy and fluorescence spectroscopy applications.

Bioluminescence Imaging

Extremely high sensitivity for capturing weak signals from bioluminescence and chemiluminescence, supporting in vivo imaging research.

Long-Term Monitoring

Stable cooling system and anti-condensation design support long-term unattended scientific observation.

Recommendation

The ITR3CMOS26000KPA cooled camera, with its exceptional low-light detection capability, ultra-long exposure time, and scientific-grade image quality, is the ideal choice for astronomical observation, spectral analysis, bioluminescence imaging, and other low-light applications. Deep cooling technology effectively suppresses noise, while anti-condensation design ensures long-term stable operation, providing reliable imaging solutions for scientific research.

ITR3CMOS26000KPA Product Manual

PDF format with detailed technical specifications and dimensional drawings

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SDK Development Kit

Supports Windows, Linux, macOS and other platforms

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3D Model Files

STEP format for mechanical design integration

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Product Overview

Professional Features of ITR3CMOS Series Thermoelectric Cooled Cameras

The ITR3CMOS series represents ToupTek's high-performance thermoelectric cooled USB3.0 CMOS cameras, featuring Sony back-illuminated CMOS sensors combined with two-stage thermoelectric cooling technology and low-noise electronic architecture. Specifically designed for long-exposure, high-sensitivity imaging and scientific observation applications, this series offers high quantum efficiency (QE), ultra-low dark current, and wide dynamic range, making it ideal for astronomical observations, spectral analysis, and scientific-grade imaging tasks.

Core Features

Two-Stage TEC Cooling

35-45℃ cooling, ultra-low dark current

Back-Illuminated CMOS

Sony sensor, high quantum efficiency

Ultra-Low Noise

Read noise as low as 1e⁻

Long Exposure

Supports multi-hour deep sky imaging

Performance Highlights

Cooling Capacity

-45℃

Below ambient temperature

Dark Current

<0.003

e⁻/pixel/sec@-20℃

Dynamic Range

75 dB

Scientific-grade imaging

Resolution

2-20 MP

Multiple specifications

In-Depth Product Introduction

Advanced Two-Stage TEC Cooling System

Utilizing advanced two-stage thermoelectric cooling (TEC) technology, the sensor temperature can be reduced to 35-45℃ below ambient temperature, significantly suppressing dark current generation. At -20℃ operating temperature, the typical dark current is below 0.003e⁻/pixel/sec, enabling multi-hour long exposures without significant thermal noise. Combined with precise temperature control systems and anti-condensation design, stable operation is ensured under various environmental conditions.

High-Performance Back-Illuminated Sensor Technology

Equipped with Sony back-illuminated CMOS sensors, featuring extremely high quantum efficiency and ultra-low read noise. The back-illuminated architecture positions photodiodes above the circuit layer, dramatically improving photon collection efficiency and achieving high signal-to-noise ratios even under low-light conditions. Optimized electronic design with multiple gain modes reduces read noise to as low as 1e⁻, ensuring precise detail representation in images. Pixel sizes range from 2.4µm to 4.63µm, perfectly balancing high resolution with high sensitivity requirements.

Scientific-Grade Imaging Quality Assurance

Supporting 8bit/12bit/16bit data output with dynamic range up to 75dB and signal-to-noise ratio reaching 50dB, meeting stringent scientific research requirements. Wide exposure control range from minimum 50µs to several hours, capable of capturing rapidly changing phenomena and enabling long-term integration for deep space objects. Built-in large-capacity DDR buffer combined with USB3.0 high-speed interface ensures lossless transmission of high-resolution images, guaranteeing scientific data integrity.

Industrial-Grade Reliability Design

Featuring CNC aluminum alloy housing with integrated high-efficiency heat dissipation system, ensuring stability during extended operation. Anti-condensation window design effectively prevents condensation issues during low-temperature operation. USB3.0 single-cable power design simplifies system integration while supporting external 12V auxiliary power for more stable cooling performance. Operating temperature range of -10~50℃ with low power consumption design makes it suitable for unattended long-term observation missions.

Comprehensive Software Development Ecosystem

Providing full-platform SDK support for Windows, Linux, and macOS, compatible with mainstream development languages including C/C++ and Python, facilitating rapid integration into existing scientific systems. Accompanying professional software provides complete camera control, image acquisition, processing, and analysis functions. Standardized interface design enables easy integration into various scientific equipment including astronomical observation systems, spectrometers, and microscopes, providing reliable imaging solutions for scientific research.