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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.
Optical Systems
| Aperture | 432mm (17 in) |
| Focal Length | 2939 |
| Focal Ratio | f/6,8 |
| Central Obstruction | 23.7% by surface area; 48.6% of the primary mirror diameter |
| Back Focus From Mounting Surface | 262.33mm (10.32 in) |
| Back Focus From Racked In Focuser | 184mm (7.24 in) |
| Weight | 48kg (106 lbs) |
| OTA Length | 1067mm (42 in) |
| Upper Cage | Carbon Fiber Truss |
| Lower Cage | Carbon Fiber Truss and light shroud |
Secondary Mirror
| Diameter | 165mm (6.5 in) |
| Material | Fused Silica (Quartz) |
| Shape | Spherical |
| Coating | Protected Gold |
Primary Mirror
| Optical Diameter | 432 mm (17 in) |
| Outer Diameter | 445 mm (17.5 in) |
| Shape | Prolate Ellipsoid |
| Material | Fused Silica (quartz) |
| Coating | Protected 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 |
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