ZTF Filter Options P. Jelinsky 2013-02-12 2013-02-01ZTF Technical Meeting 1.

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Presentation transcript:

ZTF Filter Options P. Jelinsky ZTF Technical Meeting 1

Optic Terminology ZTF Technical Meeting 2 Filter/ Focal Plane Corrector Window 12 flatteners 12 detectors

Filter Options Case A –Filter at the front of corrector. (Only Window and Flattener) Case B –Flat filter between mirror and window. Case C –Fixed filters (make the flatteners the filters, window only). Case D –Fixed filters (make the flatteners the filters, but keep the current "filter" as a corrector) ZTF Technical Meeting 3

12 Segment Trade Study PTF Corrector Distance = mm; Original Corrector Distance = mm (A) = asphere; (S) = sphere ZTF Technical Meeting 4 CaseFilterWindowFlattenerR Band FWHMG Band FWHM Corrector Distance IMeniscus (5mm)Meniscus(A)Off axis9.1µm (0.60”)13.2µm (0.88”) mm IIMeniscus (5mm)Plano-Concave(S)Off axis9.1µm (0.61”)14.1µm (0.94”) mm IIIMeniscus (5mm)Meniscus(A)On axis9.0µm (0.60”)14.1µm (0.94”) mm IVMeniscus (5mm)Plano-Concave(S)On axis9.1µm (0.61”)14.0µm (0.93”) mm VMeniscus (5mm)Meniscus(A)Identical9.0µm (0.60”)13.7µm (0.92”) mm VIMeniscus (5mm)Plano-Concave(S)Identical9.4µm (0.63”)13.9µm (0.92”) mm VIIPlano-Convex (5mm)Concave-Plano(S)Off axis9.4µm (0.63”)14.8µm (0.98”) mm VIIIPlano-Convex (5mm)Concave-Plano(S)On axis9.4µm (0.63”)16.8µm (1.12”) mm IXPlano-Convex (5mm)Concave-Plano(S)Identical9.5µm (0.63”)16.8µm (1.12”) mm XMeniscus (10mm)Meniscus(A)Off axis9.7µm (0.65”)14.5µm (0.97”) mm XIMeniscus (10mm)Meniscus(S)Off axis9.8µm (0.65”)15.5µm (1.04”) mm XIIMeniscus (10mm)Meniscus(S)On axis9.8µm (0.65”)15.5µm (1.03”) mm XIIIMeniscus (10mm)Meniscus(S)Identical10.1µm (0.67”)15.5µm (1.04”) mm XIVPlano-Convex (10mm)Biconcave(S)Identical9.7µm (0.65”)16.8µm (1.12”) mm XVPlano-Convex (5mm)Biconcave(S)Identical9.1µm (0.60”)14.9µm (1.00”) mm XVIPlano-Plano(10mm)Meniscus(A)Identical20.5µm (1.37”)27.7µm (1.85”) mm XVIIPlano-Plano(10mm)Meniscus(A)Off axis20.5µm (1.37”)27.9µm (1.86”) mm XVIIIPlano-Plano(5mm)Meniscus(A)Off axis18.0µm (1.20”)24.6µm (1.64”) mm B D D D

12 Segment Trade Study (cont) PTF Corrector Distance = mm; Original Corrector Distance = mm (A) = asphere; (S) = sphere; (F) = flat focal plane; (T) segmented focal plane ZTF Technical Meeting 5 CaseFilterWindowFlattenerR Band FWHMG Band FWHM Corrector Distance XVIIPlano-Plano(10mm)Meniscus(A)Off axis20.5µm (1.37”)27.9µm (1.86”) mm XVIIIPlano-Plano(5mm)Meniscus(A)Off axis18.0µm (1.20”)24.6µm (1.64”) mm XVPlano-Convex (5mm)Biconcave(S)Identical9.1µm (0.60”)14.9µm (1.00”) mm XXINoneMeniscus(S)Identical16.8µm (1.12”)22.7µm 1.51”) mm XXNoneMeniscus(A)Identical15.7µm (1.05”)21.2µm (1.41”) mm XXINoneMeniscus(A)Off axis15.4µm (1.03”)20.9µm (1.39”) mm CaseFilterWindowFlattenerR Band FWHMG Band FWHM Corrector Distance IPlano-convex(5mm)Biconvex(S)None (F)23.0µm (1.54”)29.1µm (1.94”) mm IIPlano-Plano(5mm)Biconvex(S)None (F)23.9µm (1.59”)29.3µm (1.95”) mm IIIPlano-Convex (10mm)Biconvex(S)None (F)25.6µm (1.70”)32.5µm (2.16”) mm IVPlano-convex(5mm)Biconvex(A)None (F)22.6µm (1.51”)28.9µm (1.93”) mm VPlano-convex(5mm)Biconvex(A)None (T)22.7µm (1.52”)28.5µm (1.90”) mm VINoneMeniscus(A)Identical15.4µm (1.03”)20.9µm (1.39”) mm 3 X 3 A/C Not Ready for Prime Time