ERECT IMAGE MICROSCOPE OBJECTIVE Russian patent published in 1999 - IPC

FIELD: optical instrument engineering, in particular, mirror-lens microscope objectives, applicable in microscopes. SUBSTANCE: erect image microscope objective has two components with intermediate real image between them; the first component comprises a correction meniscus lens, its concavity facing the object, and two concentric concave with the a hole in the center and convex mirrors, and the other component is made of a concave mirror with a hole concentric to the mirrors of the first component and a plane mirror with a hole in the center, as well as a diverging lens, whose second surface is aplanatic to the image. EFFECT: enhanced numerical aperture and increased magnification of microscope objective at a good correction of spherical aberration, chromatism of position and curvature of field. 2 cl, 2 dwg, 1 tbl