LENS WITH TWO FIELDS OF VIEW FOR VISIBLE SPECTRUM Russian patent published in 2025 - IPC G02B9/04 

FIELD: optics.

SUBSTANCE: invention relates to lenses and can be used in video cameras with image formation on a CCD matrix. Lens with two fields of view for the visible region of the spectrum consists of the first and second optical components with positive refracting power installed along the beam path. First component comprises a glued lens and a single plano-convex lens whose convex surface faces the object space. Glued lens of the first component consists of a negative convex-concave lens whose convex surface faces the object space, and a positive plano-convex lens whose convex surface faces the object space. Second component comprises a first glued positive lens, a second glued negative lens, a first single biconvex lens, a second single plano-convex lens whose convex surface faces the object space. First glued lens of the second component consists of a positive and a negative meniscus whose convex surfaces face the image space. Second glued lens of the second component with its concave surface facing the object space consists of a biconcave lens and a biconvex lens. Angular field of view is changed by moving the second glued lens of the second component and two single lenses of the second component.

EFFECT: lens provides two fields of view for the visible spectrum while maintaining high image quality in the visible spectral range from 0.47 mcm to 0.65 mcm.

1 cl, 10 dwg, 5 tbl