TWO-CHANNEL MIRROR-LENS SYSTEM Russian patent published in 2018 - IPC G02B17/08 G02B23/04 

FIELD: optics; electrical engineering.

SUBSTANCE: invention can be used in multi-channel optoelectronic systems designed to detect and recognize objects of observation in the visible and infrared regions of the spectrum. System consists of a thermal imaging channel containing the first component in the form of an aspherical main concave mirror with a central hole and a secondary mirror, second component, containing two positive convex-concave lenses and a radiation receiver, and a television channel located in the central shielding zone of the thermal imaging channel having a common optical axis with it and containing a positive lens, an aspherical main concave mirror with a central hole and a radiation receiver. In the thermal imaging channel in the second component, positive and negative concave-convex lenses are additionally introduced between two positive convex-concave lenses. Between the first and second components an intermediate image is formed. In the television channel, the positive lens is concave-convex with a reflective coating in the central region of the convex surface.

EFFECT: improving the image quality when expanding the spectral range of the thermal imaging channel and reducing the number of elements in the television channel.

3 cl, 1 dwg, 4 tbl