a doppelband - optic system (10), preferably for use in the thermal infrared wellenband provides an initial collection of a target in a first wellenband (8 - 12 m) with a wide gesichtsfeld and reconstituted zielerkennung in the second wellenband (3 - 5 m) at higher magnification and narrow field of view without any gesichtsfeldveru00e4nderungs mechanism.the system (10) includes a detektoranordnung (11) in the two wellenbu00e4ndern addresses, and an optical arrangement (16) with a common objektivkomponente (15) for both wellenbu00e4nder.a wellenband by dichroitischen strahlteiler (17, 18) of the arrangement (11) pass, while the other of the strahlteilern (17, wellenband18), reflected by a feldlinse (18) be allowed to get through before the arrangement (11).both wellenbu00e4nder fall on a spektralselektive u00f6ffnungsblende (20)what a big opening for the field with low magnification and a small opening for the field with high magnification).
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