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PlaneWave - Infrared Dall-Kirkham Optical Tube Assembly 20"

Model#: IR DK20

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Availability: In stock

$35,000.00

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Manufactured by: PlaneWave Instruments

Details

PlaneWave Infrared Dall-Kirkham Optical Tube Assembly 20"


This is a Dall-Kirkham optical design with coatings that are optimized to transmit in infrared wavelengths.  It is diffraction limited across a 20mm image circle at the focal plane.  There are no refractive lens, only reflective components to the design.  The reflectives coatings are a protected gold which give better than 98% reflectivity from .65 micron (650nm) to 5 micron (5000nm).  This design is ideal for infrared astronomy or LIDAR applications.

 

 

 

 

 

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Additional Information

Name PlaneWave - Infrared Dall-Kirkham Optical Tube Assembly 20"
Manufacturer PlaneWave Instruments
Model IR DK20
Aperture 20" (.51m)
Backfocus Distance 8.9" from focuser mounting surface, 5.81" from racked in focuser
Central obstruction 39% of the Primary Mirror Diameter
Focal Length 3454 mm
Focal Ratio f/7
Material (primary mirror) Precision Annealed Pyrex
Mounting (primary mirror) Laser Collimated and Permanently Fixed
Optical Coatings Protected Gold Reflective Coating - 98% (.65-16micron)
Optical Tube Length 47"