IRDK12.5’s Key Features
Large Aperture and Optimized Focal Ratio
The IRDK12.5 features a significant 318 mm aperture and an f/8 focal ratio, enhancing its efficiency in capturing infrared light. This setup is perfect for detailed infrared observations and extensive exposure imaging, offering outstanding light-gathering capacity.
Specialized Optical Design for Infrared
The Dall-Kirkham optical design of the IRDK12.5 is tailored for infrared wavelengths. It incorporates only reflective fused silica mirrors and no refractive lenses. The reflective coatings are protected gold, ensuring more than 98% reflectivity from 0.65 microns (650nm) to 5 microns (5000nm), making it ideal for infrared astronomy and environmental LIDAR applications. UV-optimized coatings are also available upon request.
Robust Mechanical Structure
Constructed using carbon fiber, the optical tube of the IRDK12.5 ensures durability and stability with minimal thermal expansion. This design maintains consistent performance under varying environmental conditions, suitable for rigorous scientific applications.
Advanced Thermal Management
Equipped with cooling fans and a system ready for Delta-T applications, the IRDK12.5 promotes rapid thermal equilibrium. This feature is critical for minimizing air turbulence inside the tube, thereby reducing potential image distortion and enhancing the quality of imaging.
Integrated Dew Control
The IRDK12.5 is designed to combat condensation, a common challenge in infrared observations. Advanced dew prevention technology, including heater pads controlled via PlaneWave’s software, keeps the optical surfaces clear of dew, ensuring consistent and clear imaging performance.
Application-Specific Benefits
Infrared Astronomy
The IRDK12.5 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 essential for studying astrophysical phenomena not visible in standard optical wavelengths.
Advanced Research and LIDAR Applications
With its specialized design and infrared optimization, the IRDK14 is a robust platform for advanced scientific research, including LIDAR and other remote sensing applications.
Optical Systems
| Aperture | 318mm (12.5 in) |
| Focal Length | 2541 (100 in) |
| Focal Ratio | f/8 |
| Central Obstruction | 42% of the primary mirror diameter |
| Back Focus From Mounting Surface | 265mm (10.4 in) |
| Weight | 19kg (42 lbs |
| OTA Length | 787mm (31 in) |
| Upper Cage | Carbon Fiber Truss |
Secondary Mirror
| Diameter | 118mm (4.65 in) |
| Material | Fused Silica (Quartz) |
| Shape | Spherical |
| Coating | Protected Gold |
Primary Mirror
| Optical Diameter | 318mm (12.5 in) |
| Outer Diameter | 330mm (13 in) |
| Shape | Prolated 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 | |
| Flash drive - Contains software and instructions for collimation and spacing the primary to secondary mirror | |
| Wrench Set (5812A35) - Standard hex wrenches (European orders only) | |
| Cable connector for fan power - Provides a connection method for powering for the fans if the user does not have the 125901 EFA kit. User must provide 12VDC power supply 2.1 barrel jack connector that is center positive. (Not included for European orders) |
