Skip to content
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
QHYCCD QHY991 Class 1 SWIR Camera

QHYCCD QHY991 Class 1 SWIR Camera

by QHYCCD
SKU QHY-110092
$11,800.00 - $11,800.00
$11,800.00
$11,800.00 - $11,800.00
$11,800.00
Price Match Policy!
  • Class 1 Scientific SWIR Camera
  • Sony InGaAs Sensor Technology
  • Broad Spectral Response (400-1700 nm)
  • Active Air and Liquid Cooling Support
  • Standard C-Mount Interface
Backordered
Request Stock Alert
Availability Info
FREE Shipping in CONUS
Framing Simulator Preview
Framing Simulator Instant FOV Preview

Preview your camera's FOV

Simulate the exact field of view of the QHYCCD QHY991 Class 1 SWIR Camera with your specific telescope.

Launch Imaging Assistant
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • QHY991 Class 1 SWIR Camera

    The QHY991 is a Class 1 scientific short-wave infrared (SWIR) camera built around a high-sensitivity Sony InGaAs sensor, designed for applications requiring a broad spectral response from visible light into the SWIR spectrum.

    Sony InGaAs Sensor: Broad SWIR Spectral Response

    At the core of the QHY991 is a Sony InGaAs sensor, which provides high sensitivity across an exceptionally broad spectral range. This allows for detailed imaging in wavelengths beyond the reach of typical silicon-based sensors. The sensor's architecture, which utilizes Cu-Cu interconnect technology, is engineered to minimize fixed-pattern noise and reduce the pixel defect ratio, ensuring clean data for scientific analysis.

    Essential Cooling for Low-Noise InGaAs Operation

    InGaAs sensors inherently produce a higher dark current than their silicon counterparts, making active cooling a critical requirement for long-exposure or high-precision measurements. The QHY991 addresses this with a powerful cooling system that supports both air and liquid cooling methods. This thermal management is essential for stabilizing the sensor and reducing thermal noise to achieve the highest possible signal-to-noise ratio in demanding conditions.

    C-Mount and Filter Integration for Lab Use

    Designed for straightforward integration into scientific and industrial setups, the QHY991 features a standard C-mount thread. The camera body also includes an integrated filter holder designed for common filter sizes used in laboratory applications. This allows you to easily install SWIR-pass or other specialized filters required for your specific imaging or measurement task without complex adapters.

  • What types of applications is the QHY991 SWIR camera designed for?

    The QHY991 is a scientific camera ideal for applications that benefit from imaging in the short-wave infrared spectrum. This includes semiconductor inspection, material sorting, anti-counterfeiting, biological imaging, and specialized astronomical imaging where SWIR can reveal details obscured in visible light.

    Why is powerful cooling necessary for the QHY991's InGaAs sensor?

    InGaAs sensors, by nature, generate more thermal noise (dark current) than silicon CMOS or CCD sensors. The QHY991's robust air and liquid cooling support is essential to lower the sensor's operating temperature, which significantly reduces this noise. Lower noise is critical for achieving clear, high-contrast images, especially during longer exposures.

    How would the QHY991's broad spectral response help with imaging a planet like Jupiter?

    Jupiter's atmosphere has distinct absorption and reflection bands in the SWIR spectrum, particularly for methane. Using the QHY991 with an appropriate methane filter would allow you to capture high-contrast images of Jupiter's cloud structures, revealing details about storm systems and atmospheric layers that are invisible to standard RGB cameras.

    What is the benefit of the Cu-Cu interconnect technology in the QHY991 sensor?

    The Cu-Cu (copper-to-copper) interconnect technology used in the QHY991's Sony sensor allows for a more direct and efficient connection between pixel layers. This advanced manufacturing technique results in significantly lower fixed-pattern noise (FPN) and a lower defect pixel ratio, leading to cleaner and more uniform images.

    How do I mount filters on the QHY991 camera?

    The QHY991 includes an integrated filter holder designed to accept common filter sizes used in laboratory and industrial settings. This allows for the direct installation of SWIR-pass, bandpass, or other analytical filters into the optical path in front of the sensor.

    What does "Class 1" signify for the QHY991 camera?

    Class 1 typically refers to the grade of the sensor, indicating it meets the manufacturer's highest standards for quality. For scientific cameras, this usually means the sensor has a very low number of pixel defects and provides the most uniform response, making it suitable for quantitative measurement and analysis.

  • Product Scientific Cameras - QHY991
    Sensor Class Class 1
    Spectrum SWIR (Short-Wave Infrared)
    Sensor Technology InGaAs
    Cooling Air Cooling (Liquid Supported)
  • QHYCCD Warranty