OPHTHALMIC DEVICE WITH VARIABLE OPTICAL PROPERTIES, INCLUDING LIQUID CRYSTAL ELEMENTS WITH NANO-SIZED DROPLETS OF LIQUID CRYSTALS Russian patent published in 2017 - IPC G02C7/04 A61F2/14 

FIELD: medical equipment.

SUBSTANCE: device for ophthalmic lens comprises insert with variable optical properties, containing front and rear curved elements. Rear surface of front curved insertion component and front surface of rear curved insertion component have different radii of curvature. Power source is built in insert in area containing non-optical zone. Insert comprises layer formed of drops of liquid crystal material, density of drops is characterized by spatial non-uniformity, capable to cause spherical focusing, change in refraction index, violation of light polarization, change of focal characteristics of lens, change of light polarization state or change of rotation of polarization plane. In compliance with second version, insert additionally contains intermediate curved element.

EFFECT: technical result is smooth and complex variation of optical properties of lens, increased amplitude of such changes without increasing amount of liquid crystal material and absence of negative effect of dispersion on lens.

16 cl, 18 dwg