QHY550P M /P

The QHY550P ColdMOS Monochrome Polarized Camera is a specialized imaging device designed for capturing polarized light in the field of astronomy and scientific research. The QHY550M ColdMOS Monochrome  Camera is a specialized imaging device designed for astronomy and scientific research. Let’s delve into its features:

1. Sensor and Polarization:

   • The QHY550P features a 2/3-inch Sony 5 MP IMX250 Global Shutter CMOS sensor.
   • It is the monochrome version with a unique twist: an on-pixel four-direction polarize image capability.
   • With this feature, the camera can capture polarized images using just one exposure, eliminating the need to change polarize filters frequently.
   • When recording video, the QHY550P achieves a remarkable 68 frames per second (fps) for polarized video¹.

2. Applications:

   • Many celestial objects emit polarized light, including nebulae. By using the QHY550P, you can explore these objects from a fresh perspective.
   • In solar imaging, phenomena like the corona and sunspots benefit from polarization.
   • The polarization sensor is created during semiconductor fabrication, ensuring excellent uniformity, mass production, and durability. An anti-reflection layer covers the sensor to prevent flare and ghosting¹.

3. Technical Specifications:

   • Pixel Array & Resolution: 2464 x 2056 (5.07 MP)
   • Pixel Size: 3.45 microns
   • Fullwell: 11,000 electrons
   • AD Sample Depth: 12-bit
   • Readout Noise: 2.0 to 2.5 electrons
   • Dark Current: 0.005 electrons/pixel/sec @ -10°C
   • Frame Rates:
     • 67 fps at 5 MP with 8-bit output
     • 34 fps with 12-bit output
     • Higher frame rates achievable using the Region of Interest (ROI) function¹

4. Cooling System:

   • Detecting subtle differences in polarized light requires precise temperature control.
   • The QHY550P incorporates a 2-stage TEC cooling system, allowing the sensor to cool to -35°C below ambient.
   • This significantly reduces dark current and enhances dark signal detection performance¹.

5. Anti-Dew Technology:

   • The camera features full anti-dew technology for both the CCD sensor cover glass and the sensor chamber optical window.
   • An electric heating board prevents dew formation on the chamber window.
   • A silicon gel tube socket maintains dry conditions in the sensor chamber¹.

6. Optical Window:

   • The AR+AR coated optical window ensures no halos around bright stars.
   • It provides full access to the red wavelength of H-alpha and SII.
   • For RGB color balance, a separate removable 2-inch UV/IR filter is included¹.

In summary, the QHY550P ColdMOS Monochrome Polarized Camera combines advanced features, precise cooling, and anti-dew technology to enhance your astronomical and scientific imaging endeavors