| 摘要 |
FIELD: optics. ^ SUBSTANCE: invention may be used in microscope objections and also in luminescent microscope operated at high temperature drops in which luminescence excitation is carried out by deep ultra-violet (from 250 nm), and work is carried out in visible IR range (from 404 to 1000). Plan achromatic microscope objective contains quartz-fluorite series two positive einzel lenses, two positive three-lens components and einzel lens. Each of three-lens positive components is made of negative two-bond lens including positive fluorite lens and negative quartz glass lens and of positive einzel fluorite lens from. Einzel lens mounted behind three-lens positive components is negative fluorite. ^ EFFECT: greater aperture, improvement of image quality in the centre and across visual field, reduced chromatic aberration of position and chromatism of magnification, provided "infinity" length tube without triple bonding. ^ 1 dwg |
