OPTICAL SYSTEM OF SPECTRUM DIVIDER FOR IR-AREA OF SPECTRUM

摘要

FIELD: physics. ^ SUBSTANCE: optical system of spectrum divider for IR-area of spectrum comprising flat-parallel plate with spectrum-dividing coat installed at the angle of 45 degrees to optical axis differs by the fact that plate is located in convergent bundle of beams in space for objective image, downstream compensator of aberrations is installed comprising two lenses: the first one located along with beams travel is positive with convex first surface and cylindrical second surface, the second one is plano-concave that it inverted with its concavity to image and displaced in meridional plane along with direction perpendicular to optical axis. ^ EFFECT: creation of optical system of spectrum divider for instruments that operate simultaneously in two different ranges of spectrum IR-area with simultaneous increase of aberrations correction quality and reduction of instrument dimensions. ^ 3 dwg, 4 tbl