IRDK17 Infrared Optimized Optical Tube Assembly

The IRDK17 from PlaneWave Instruments is an engineered optical system designed specifically for superior performance in infrared wavelengths. It is an exceptional tool for advanced astronomical research and remote sensing applications, delivering excellent capabilities in infrared imaging.

Key Features Overview

The IRDK17 features impressive specifications that are optimized for infrared applications:

• Gold-coated mirrors optimized for high reflectivity in infrared wavelengths (ultraviolet optimization available)
• 17-inch (432 mm) aperture
• 2939 mm focal length
• f/6.8 focal ratio
• 262.33 mm back focus from mounting surface
• 70 mm image circle
• Rock-solid fused silica mirrors with low thermal expansion
• Lightweight and rigid carbon fiber optical tube assembly
• About the IRDK17 (Infrared Optimized) Optical Tube Assembly

  IRDK17’s Key Features

  Large Aperture and Optimized Focal Ratio

  The IRDK17 features a considerable 432 mm aperture and an f/6.8 focal ratio, enhancing its ability to capture infrared light effectively. This configuration is ideal for precise infrared observations and long-exposure imaging, offering superior light-gathering capabilities.

  Specialized Optical Design for Infrared

  The Dall-Kirkham optical design of the IRDK17 is finely tuned for infrared wavelengths. There are no refractive lenses, only reflective components made from fused silica. The reflective coatings are a protected gold with better than 98% reflectivity from .65 microns (650nm) to 5 microns (5000nm), making it optimal for infrared astronomy or LIDAR applications. UV-optimized coatings can also be provided, enhancing the telescope's versatility—please contact our technical sales team to discuss UV optimization.

  Robust Mechanical Structure

  Constructed using carbon fiber, the optical tube of the IRDK17 ensures durability and stability with minimal thermal expansion. This feature guarantees consistent performance across various conditions and is suitable for intensive scientific and research applications.

  Advanced Thermal Management

  The IRDK17 has cooling fans and a system ready for Delta-T applications, promoting rapid thermal equilibrium. This system is essential for minimizing air turbulence within the tube, reducing potential image distortion, and improving overall imaging quality.

  Integrated Dew Control

  Given that infrared observations are prone to condensation, the IRDK17 incorporates advanced dew-prevention technology. Heater pads, controlled via PlaneWave’s software, ensure the optical surfaces remain clear from dew, maintaining consistent and sharp imaging performance.

  Application-Specific Benefits

  Infrared Astronomy

  The IRDK17 excels in infrared astronomy, where its large aperture and infrared-optimized optics allow for detailed observation of celestial objects in infrared light. This capability is vital for uncovering astrophysical phenomena invisible to the naked eye or conventional optical wavelengths.

  Advanced Research and LIDAR Applications

  With its specialized design and infrared optimization, the IRDK17 is a robust platform for advanced scientific research, including applications in LIDAR, leveraging its specialized optical capabilities.

  Aperture17 in (432 mm)Focal Length116 in (2939 mm)Focal Ratiof/6.8Central Obstruction23.7% by surface area; 48.6% of the primary mirror diameterBack Focus from Mounting Surface10.32 in (262.33 mm)Back Focus from Racked in Focuser7.24 inch (184 mm)Weight106 lbs (48 kg)OTA Length42 in (1067 mm)Upper CageCarbon Fiber TrussLower CageCarbon Fiber Truss with Carbon Fiber Light Shroud

  Diameter	7.48 in (190 mm)
  Material	Fused Silica (quartz)
  Shape	Spherical
  Coating	Protected Gold

  Optical Diameter17 in (432 mm)Outer Diameter17.5 in (445 mm)ShapeProlate EllipsoidMaterialFused Silica (quartz)CoatingProtected Gold

  Included Items	Heating Elements for Dew Prevention - The heating pads on the primary and secondary mirror require the 600195 Delta-T controller sold separately
  	OTA Cover - To protect the primary mirror and inside of the optical tube
  	Flashdrive - Contains software and instructions for collimation and spacing the primary to secondary mirror
  	Wrench Set (5812A35) - Standard hex wrenches (European orders only)