PLAN ACHROMATIC QUARTZ-FLUORITE MICROSCOPE OBJECTIVE

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 einzel frontal lens and two positive components one of which consists of three einzel frontal lenses, and another one consists of two positive fluorite lenses with negative quartz glass lens mounted between them. Between einzel frontal lens and first positive component there are two additional two einzel fluorite lenses with in-between negative quartz glass lens. And first positive component is made of two negative quartz glass lenses and in-between positive fluorite lens. ^ EFFECT: greater aperture and visual field maintaining plan achromatic aberration correction and providing "infinity" length tube. ^ 1 dwg