Figure | Partial output results of the three-mirror freeform system design working in the VIS band. (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Figure | Partial output results of the three-mirror freeform system design working in the VIS band.

Caption

The second design example is a three-mirror freeform imaging system that has a field-of-view of 4°×4°, a focal length of 450 mm and a F-number of 9, which works in the VIS band. Through 35.3 hours of automatic computation, 59 systems are obtained, all of which have the AVG WFE RMS smaller than 0.075λ (λ = 587.6 μm).

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by Benqi Zhang, Guofan Jin and Jun Zhu

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