'first time right' design results for a four-surfaces monolithic infrared camera objective (IMAGE)

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

'first time right' design results for a four-surfaces monolithic infrared camera objective

Caption

a Cross-section of the system from direct calculations with peak-to-valley freeform departure (PV) from the base sphere for the second and only freeform surface. b Corresponding spot diagrams for six selected fields based on aberration calculations. c Cross-section of the subsequently optimized system combined with peak-to-valley freeform departure (PV) from the base sphere for the second surface. d Corresponding spot diagrams for the same six fields based on aberration calculations.

Credit

by Fabian Duerr and Hugo Thienpont

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