METHOD FOR HIDING OPTOELECTRONIC DEVICES FROM LASER LOCATING SYSTEMS Russian patent published in 2021 - IPC G02B26/04 

FIELD: optoelectronic technology.

SUBSTANCE: invention relates to the field of optoelectronic technology and can be used in optoelectronic countermeasures systems. The essence of the invention is that the method of hiding optoelectronic devices (OEDs) from laser locating systems (LLS) is based on the reception of optical radiation of the OED, measuring the parameters of the received optical radiation, distinguishing the parameters of the spontaneous emission of the transmitting channel of the LLS, preceding the main one, recording the time of receiving the spontaneous radiation of the transmitting of the LLS channel t_C and determining the time of arrival t_O of the fundamental radiation of the LLS transmitting channel, determining the angular coordinates of the LLS α and β from the values of the spontaneous emission parameters, setting during the time Δt < t_C - t_O at the input aperture of the OED of the screen in coordinates х = f sinα, у = f sinβ and area S, while where is the radius of the screen, f is the focal length of the OED lens, Δ is the distance of the location of the reflecting surface with specular reflection properties relative to the focal point of the OED lens, λ_max is the maximum transmission wavelength of the optical radiation of the OED lens, absorption by the screen of a portion of the radiation from the LLS reflected from the surface of the OED with mirror properties reflections.

EFFECT: increasing efficiency of hiding the OED from the LLS by providing all-aspect protection and reducing the energy losses of the useful signal during the shielding of the OED aperture.

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