Off-Axis Three-Mirror Collimator

Collimator is used to test the imaging quality and focal length of ultraviolet, visible, and infrared optical lenses and systems. It can also measure the defocus of optical systems. MG-Optics can manufacture large-aperture off-axis three-mirror Collimator, large-aperture off-axis RC Collimator, short-focus small-aperture Collimator, off-axis Gregorian Collimator, large-aperture wide-spectrum Collimator, as well as custom collimators according to customer requirements.

Off-Axis Three-Mirror Collimator

Main Functions:
This specialized equipment is used for testing spectral imaging systems. It can complete the testing and calibration of performance indicators such as camera focal length, field of view, spectral band alignment, and imaging quality (MTF).

Camera Optical System Performance Testing:
Used for testing the focal length, resolution, star point geometric aberration, and field of view of the camera's optical system.

Camera System Performance Testing:
Can test the overall system's distortion, spectral band alignment, and the camera system's Modulation Transfer Function (MTF).

Spectral Response Range Testing:
When combined with a monochromator, it is used for detecting the spectral response range of the camera system.

· Effective Aperture: Ф600mm;

· Focal Length: 8m;

· Effective Field of View (at image plane): > Ф100mm;

· System Wavefront Aberration: Center field RMS ≤ 120, 0.7 field RMS ≤ 15 (λ = 632.8nm);

· Beam Parallelism: ≤ 3;

· Structure Type: Off-Axis Three-Mirror

· Spectral Range: 300nm - 8000nm;

· Coating Requirements: A SiO2 average reflectivity ≥ 85%;

· Glass Material: fused silica

The total length of the parallel light tube is ≤ 5.5m, with a center height of 1600mm.

It is equipped with a detachable image plane target adjustment mechanism with a focusing range of 0-100mm and a focusing accuracy of ±0.005mm. The focal plane target configuration includes a set of fused silica material identification plates (5 pieces), star point plates, borosilicate plates, striped plates, rectangular slits, band-pass filters, and neutral density filters, among others.

MG-Optics is bringing new and novel optics solutions, especially complex optical system. From optical design services to custom fabrication of precision complex optics including aspheres, freeforms, off-axis sections and optical system alignment and Optical Metrology.

Just send us your drawings or specifications, we will begin preparing a quotation for you.

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