Infrared Thermal Imaging

Coaxial Cassegrain Collimator

Product description: The coaxial Cassegrain collimator is designed to generate high-quality parallel light using a reflective optical system. It features compact structure, achromatic performance, and wide spectral adapta
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Coaxial Cassegrain Collimator

The Coaxial Cassegrain Collimator is a high-precision optical instrument designed to generate stable and uniform parallel light beams. Based on a reflective Cassegrain optical configuration, the primary and secondary mirrors are aligned coaxially to minimize chromatic aberration and ensure consistent optical performance across a wide spectral range.

It is widely used in optical component testing, imaging system calibration, sensor evaluation, and laboratory research.


2020 TK Coaxial Cassegrain Collimator	3030 TK Coaxial Cassegrain Collimator	5030 TK Coaxial Cassegrain Collimator

Parameter

Parameter	2020 TK	3030 TK	5030 TK
Optical Design	Coaxial Cassegrain	Coaxial Cassegrain	Coaxial Cassegrain
Primary Mirror	Quartz (Std) / Zerodur (Opt)	Quartz (Std) / Zerodur (Opt)	Quartz (Std) / Zerodur (Opt)
Coating	Al + Si (Std) / Ag / Au / Dielectric	Al + Si (Std) / Ag / Au / Dielectric	Al + Si (Std) / Ag / Au / Dielectric
Reflectivity	≥85%	≥85%	≥85%
Focal Length	2000mm	3000mm	5000mm
Aperture	Ø 200mm	Ø 300mm	Ø 300mm
Field of View	≥0.8°	≥0.5°	≤0.5°
Collimation Accuracy	≤5”	≤5”	≥0.3”
Wavefront Error	RMS < 1/15λ @632.8nm	RMS < 1/15λ @632.8nm	RMS < 1/15λ @632.8nm
Weight	19KG	100KG	120KG