Planewave - IRDK 24 Infrared Optimized Dall Kirkham Optical Tube Assembly
The Planewave IRDK 24 is a 24" optical tube featuring a Dall-Kirkham design optimized for infrared with a focal length of 3,962 mm (f/6.5).
Its mirror coatings are specifically optimized for infrared wavelengths (with an option for ultraviolet optimization). The mirrors are constructed from fused silica, known for its low thermal expansion properties.
The optical tube comes equipped for Delta-T dew prevention.
If you choose to place an order for this item, you will be contacted for crating and shipping fee information and options. To receive a quote contact us at [email protected].
Planewave IRDK 24 Infrared Optimized Optical Tube Assembly
The Planewave Instruments IRDK24 stands as a specialized 24-inch infrared-optimized optical tube meticulously crafted for research applications demanding impeccable on-axis performance. This optical marvel adheres to the Dall-Kirkham design philosophy, boasting a focal length of 3,574 mm (f/6.5). In a departure from traditional designs, the IRDK24 exclusively relies on reflective components, eschewing refractive lenses.
The mirror coatings are a testament to its commitment to excellence in infrared applications. Specifically, the reflective coatings are composed of protected gold, ensuring unparalleled performance with over 98% reflectivity across the spectrum from 0.65 microns (650nm) to 5 microns (5000nm). This remarkable feature makes the IRDK24 particularly well-suited for applications in infrared astronomy and LIDAR, where precision and reliability are paramount.
The optical tube incorporates fused silica mirrors, chosen for their low thermal expansion properties, adding a layer of stability and resilience to environmental variations. The design is not only a triumph in technological sophistication but also a practical solution, as it comes prepared for Delta-T dew prevention, safeguarding its optical integrity in varying atmospheric conditions.
For those venturing into ultraviolet (UV) realms, the IRDK24 offers the flexibility of UV optimization. This adaptability underscores the commitment to meeting diverse research needs. Interested parties are encouraged to engage with our technical sales team to explore the possibilities of UV optimization and delve deeper into the capabilities of the IRDK24 for their specific research requirements. In essence, the IRDK24 represents a pinnacle in optical engineering, seamlessly blending cutting-edge design, advanced materials, and adaptability to cater to the discerning demands of research applications in both infrared and ultraviolet domains.
Planewave IRDK24 Features
- Infrared and UV optimized fused silica optics
- Diffraction limited across a 20mm image circle at the focal plane
- 8" Dovetail
- Focal length 3.962 mm (f/6.5)
- Delta T Ready
Planewave Fused Silica Optics
Fused Silica stands as a remarkable synthetic amorphous silica glass renowned for its unparalleled purity and exceptional transparency. It outshines other types of glass in terms of optical and thermal properties, thanks to its inherent purity. The transmission and homogeneity of fused silica surpass even crystalline quartz, all while avoiding the temperature instability challenges associated with the crystalline form.
The coefficient of thermal expansion of fused silica is a mere one-sixth that of Borosilicate (Pyrex) glass. This characteristic imparts a unique advantage—when fused silica undergoes cooling, it remarkably retains its shape with an impressive level of accuracy. This attribute ensures consistent optical performance and a steadfast focus, irrespective of temperature fluctuations. The superior stability of fused silica over various temperature ranges makes it an ideal choice for applications demanding precision, reliability, and minimal optical distortion.
With an exceptionally high melting temperature, exceeding approximately 1,600 degrees Celsius, fused silica exhibits robustness in extreme conditions. Its resistance to thermal shock further reinforces its suitability for professional observatories and a diverse array of scientific applications. The enduring popularity of fused silica in these realms is a testament to its reliability, ensuring that it remains the material of choice for those who prioritize consistent, high-performance optics in the face of challenging environmental conditions.
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|Optical Tube Material
|In The Box
- 24" Planewave IRDK Optical Tube
- Heating elements for dew prevention on the primary and secondary mirrors, ready to accept a Delta-T controller (sold separately)
- OTA Cover
- Flashdrive containing software, instructions for collimation and spacing the primary to secondary mirror
- Wrench Set(5812A35) (European orders only)
- Soft cover for secondary mirror
- 12v AC adapter
- Back plate to focuser spacer (attached)