LENS TELEOCENTRIC IN SPACE OF SUBJECTS Russian patent published in 2017 - IPC G02B13/22 G02B9/62 

FIELD: physics.

SUBSTANCE: lens contains six lenses and an aperture diaphragm arranged in series on the optical axis: a plano-convex lens located on the plane to the aperture diaphragm, a positive meniscus with an aspherical convex surface facing the object space, a weakly negative meniscus facing the aperture diaphragm, an aperture diaphragm, a glued lens consisting of biconcave and biconvex lenses and located with its concave side to the aperture diaphragm, a biconvex lens and a weakly negative meniscus with a convex side facing the aperture diaphragm.

EFFECT: expanding the field of application, improving the technical characteristics and increasing the manufacturability of manufacture.

2 cl, 3 dwg, 1 tbl