OBJECTIVE LENS Russian patent published in 2014 - IPC G02B9/60 G02B9/34 

FIELD: physics, photography.

SUBSTANCE: invention can be used as a lens of a television camera with a CCD array and a photodetector of a range finder. The objective lens comprises, on the beam path, first component in form of a positive glued lens consisting of a biconvex and a biconcave lens, a second component in form of a positive meniscus, glued from a biconvex and a biconcave lens, a third component in form of a meniscus glued from a biconvex and a biconcave lens, a spectrum-dividing unit which divides the wavelength of laser radiation and the spectral sensitivity range of the CCD array with which a fourth component, made in form of a negative lens, is optically connected. The objective lens includes a fifth component in form of a positive lens placed after the fourth component. Sixth and seventh components are in form of positive menisci, optically connected to the face of the spectrum-dividing unit, which selects the wavelength of laser radiation, and face the image plane with their concave surfaces. Relationships given in the claim hold.

EFFECT: enabling focusing of an image of objects lying at a short distance in an image plane associated with the face of a spectrum-dividing unit, which selects the spectral sensitivity range of a CCD array while maintaining image quality.

7 cl, 18 dwg, 12 tbl