660 mm off-axis ellipsoidal reflector and mirror holder


Description: This ellipsoidal mirror is the most important assembly of the large FOV off-axis three-mirror collimator.

Technical Parameters:

Overall aperture: 660 mm;

In-frame surface precision: Superior to λ/50@632.8 mm;

Reflectivity: R≥97%@450-900 nm;

Optical axis direction: Measurable optical axis directivity; the deviation of such optical axis direction is less than 40″ from the three-mirror axis;

Overall dimensions: 175 mm x 840 mm;

Adjustment feature: With capabilities of pitch and azimuth adjustment; the accuracy of adjustment is 20″, and the lock function is available.

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