METHOD FOR MANUFACTURING A COMBINED OPTICAL ELEMENT Russian patent published in 2020 - IPC G02B3/02 G02B5/08 G02B5/18 

FIELD: optics; technological processes.

SUBSTANCE: invention can be used in production of combined (hybrid) optical elements for optoelectronic systems with high requirements to allowable level of scattered light and parasitic flares. Method includes application of adhesive coating on substrate working surface, application of polymer composition on adhesive coating of substrate, pressing to polymer composition of master matrix with preliminary applied on its working surface separating layer, hardening of the polymer composition, as a result of which a replicated optical surface is obtained, separating the master matrix from it on the separating layer, removal of residuals of separating layer from replicated optical surface, as a result of which combined optical element is obtained. At that, on the working surface of the substrate, before application of the adhesive coating, a correcting layer is applied, to which then a metal nanolayer is applied, which is resistant to oxidation, wherein the value of the refractive index of the material of the correcting layer is less than the value of the refraction index of the substrate material and is greater than the value of the refraction index of the material of the polymer composition.

EFFECT: use of the invention improves functional capabilities of combined optical elements by reducing the relative intensity of parasite flares occurring at the interface of the "substrate-polymer composition" by approximately 45 times (from 0_45 % to 0_01 %).

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