TWO-CHANNEL MIRROR LENS SYSTEM Russian patent published in 2024 - IPC G02B17/08 G02B23/04 

FIELD: optoelectronic instrument making.

SUBSTANCE: invention can be used in multichannel optoelectronic systems for detecting and identifying objects of observation in the visible and infrared regions of the spectrum. Two-channel mirror-lens system consists of a main concave aspherical mirror with a central hole located along the path of beams, spectrum divider made in the form of a concave-convex aspherical lens with a dichroic coating on the convex surface, a first channel comprising a first positive convex-concave lens, a second positive convex-concave aspherical lens, a third negative convex-concave lens, a fourth positive convex-concave lens and an infrared radiation spectrum receiver, a second channel comprising a first concave-convex aspherical lens, a second positive concave-convex lens, a third negative concave-convex aspherical lens, a fourth negative convex-concave lens, a fifth positive concave-convex lens and a radiation detector, for example, in the visible spectrum. Spectrum divider is installed in the converging beam after the main mirror and simultaneously performs the functions of the secondary mirror of the first channel and the first lens of the second channel. Additionally, an optical filter is shown.

EFFECT: due to the spectral divider and the lens elements of the first and second channels, the length of the optical circuit of the channels is reduced, which enables to improve the weight and size characteristics of the two-channel mirror-lens system.

1 cl, 1 dwg, 2 tbl