METHOD FOR FORMING IMAGE OBJECTS WITH SUBDIFFRACTIONAL RESOLUTION IN ACOUSTIC RANGE OF WAVELENGTHS Russian patent published in 2018 - IPC G01N29/06 

FIELD: image forming devices.

SUBSTANCE: using for the formation of objects images with subdifractional resolution in acoustic range of wavelengths. Core of the invention is that the placement of an observation object in the focal region of the acoustic lens is carried out, immersion medium associated with the object under investigation is placed between the lens and the object and the reception of reflected or transmitted radiation from the object of investigation, converting the received radiation into electrical signals and generating, according to the electrical signals, a visually perceptible image of the observation object, while in the radiation focusing region of the forming system, a mesodimensional particle is placed with a characteristic size not exceeding the transverse dimension of the focusing region and not less than λ/2, where λ is the wavelength of the radiation used in the medium, with the sound speed in the particle material relatively to the sound speed in the medium in the range from 0.5 to 0.83, region with an increased radiation intensity with transverse dimensions on the order of λ/3-λ/4 and a length of not more than 10λ is formed on its outer boundary from the incident radiation and the observation object is placed in this region.

EFFECT: provided possibility of improving the resolution of acoustic systems for constructing images of observation objects.

1 cl, 1 dwg