Optics (G02)

G   Physics(393877)
G02            Optics(10591)

Imaging device, imaging control method and programme // 2642811
FIELD: physics.SUBSTANCE: imaging device includes a display for displaying an image section and a video processing section for gradually lowering the output power to the image. The output power is gradually reduced for light radiation with a wavelength in the range of 446 nanometers to 483 nanometers of light radiation. And the gradual reduction is performed after the user observes the image.EFFECT: reduction in the degree of the user fatigue who observes the colour image by gradually lowering the output power of a separate range of light waves, which does not cause degradation of the video signal display.19 cl, 11 dwg
ethod of manufacturing electrochromic device and electrochromic device // 2642558
FIELD: physics.SUBSTANCE: inventions relate to the field of light-relieving devices, providing a colour change under the influence of electric current voltage, namely to devices based on electrochromic compositions and technology of their manufacture. The electrochromic device comprises two electrodes, at least, one of which is optically transparent. A closed space is formed between the electrodes, in which there is a solid electrochromic layer containing a crosslinked polymer matrix with a filler in the form of an electrochromic solution.EFFECT: work in conditions of long-term maintenance of the coloured state and the effect of elevated temperatures, including structures with sufficiently large working surface dimensions.34 cl, 2 dwg, 7 ex

ethod for manufacture of ophthalmological lenses equipped with passive system of painting based on events // 2642551
FIELD: medicine.SUBSTANCE: method comprises formation of an ophthalmic lens consisting of soft biocompatible material and encapsulation of a colouring mechanism based on events within the said lens. The colouring mechanism is capable of inducing a visual indication in the lens based on the occurrence of a predetermined event. Lens moulding comprises addition of a monomer reaction mixture to the front curved surface of the casting mould, to the rear curved surface of the mould, or both, placement of the rear curved surface of the casting mould adjacent to the front curved surface, curing of the monomer reaction mixture, shaping of the front and rear curved surfaces of the casting mould and lens extraction. The colouring mechanism further comprises a rigid insert.EFFECT: ability to track the properties of the eye environment using passive colouring mechanisms based on events.24 cl, 6 dwg

Automatic retractable lens and terminal // 2642546
FIELD: physics.SUBSTANCE: claimed terminal containing the automatic retractable lens, includes a camera lens, the first elastic node, a swivel node, a slide switch, and the second elastic element. The camera lens is connected with one end of the first elastic node and the body of the terminal, respectively. On the side, the camera lens is provided with a connecting groove, and the second end of the first elastic node is connected to the body. The slide switch is configured to move downward. The slide switch rotates the swivel node so that the swivel node disengages from the connecting groove and the first elastic node pushes the camera lens. After actuation, the camera lens is pressed downwards so that the first elastic node is compressed; the connecting groove is clamped by the swivel node. The swivel node rotates the slide switch so that the slide switch is returned to its original position. The slide switch is connected with the body through the second elastic node. After the slide switch returns to its original position, the second elastic node locks the slide switch.EFFECT: ability to automatically push and pull the camera lens with the possibility of placing the camera lens inside the body, thus preventing damage to the camera lens.6 cl, 7 dwg

Navigation in menu of head-mounted display unit // 2642545
FIELD: physics.SUBSTANCE: navigation method in the menu of the head-mounted display unit is based on tracking the focal point of the head-mounted unit relative to one or more navigation menu items. After the fixed position of the focal point on the navigation element of the menu for a predetermined period of time, a process corresponding to the navigation element of the menu is executed. In this case, the working area of the displayed navigation element exceeds the area of the working element itself.EFFECT: providing navigation and control of the virtual reality environment without the introduction of an independent control device.19 cl, 8 dwg

Coupler for fibre-optic connector, having curvilinear external surface for alignment // 2642534
FIELD: physics.SUBSTANCE: invention relates to connectors for an optical fibre, in particular to an arrangement of couplers in the fibre-optic connectors. The submitted coupler contains a body supporting the end portion of optical fibres and having an outer surface for alignment with a complementary surface of the alignment sleeve, where the outer surface of the body is generally cylindrical, having a cross-sectional profile of the contact surface, which generally has an oval shape. The body comprises two half-couplers, where a plurality of longitudinal open grooves is provided at least on the surface of one of the half-couplers, where a half-coupler having a plurality of grooves is formed from the blank by punching, thereby defining the grooves with respect to the outer surface of the half-coupler. The coupler has an outer surface for alignment with the complementary surface of the equalizing (aligning) sleeve.EFFECT: reducing the signal loss.14 cl, 14 dwg

Block of fiber adapters // 2642533
FIELD: physics.SUBSTANCE: fiber optic adapter block contains at least three fiber optic adapters in a serial arrangement, elongated along the width in the longitudinal direction. Every second adapter of the at least three fiber optic adapters is disposed in a forward-backward offset relative to the adjacent adapter, wherein the front ends of said each second adapter of said at least three fiber optic adapters are aligned at a first depth and the front end of the adjacent adapter is located at a second depth different from the first depth. At the same time, at least three adapters of the block of fiber optic adapters are formed as a single unit with a solid cast housing of the block of fiber optic adapters.EFFECT: ability to control cables, facilitate installation and facilitate access to controls.7 cl, 17 dwg

ethod of manufacture and testing of fiber-optic cartridge // 2642523
FIELD: physics.SUBSTANCE: double flexible optic scheme comprises of: a flexible substrate holding a plurality of optical fibers; the first connector terminating the optical fibers at the first end of the double flexible optic scheme and the second connector terminating the optical fibers at the second end of the double flexible optic scheme. Each of the optical fibers is arranged in one of a plurality of separate protrusions formed by the flexible substrate when the optical fibers extend from the first connector to the second one. The first and second connectors are adapted for testing when they are connected via a double flexible optic scheme. This double optic scheme is capable of dividing into halves after the completion of testing to obtain two separate flexible optic schemes. The method for assembling a flexible optic scheme comprises pf the steps of: placing a plurality of tips in a latch, placing a flexible optic scheme in the latch so that the optical fibers of this flexible optic scheme pass through the tips, curing and spreading the optical fibers, polishing the tips, and removing the flexible optic scheme from the latch.EFFECT: optimisation of the permissible limits of bending radius and cartridge configuration requirements.20 cl, 106 dwg

Device for generation of second harmonic of optical radiation // 2642472
FIELD: physics.SUBSTANCE: device contains an active element based on aluminium nitride. The active element is made in the form of a waveguide with air clads, the waveguiding layer of which is made of at least one pair of alternating layers: an intrinsic conductance aluminium nitride layer (1) (100-1400 nm in thickness) and a layer (2) of material with a metallic conductivity of 1- 5 nm.EFFECT: increasing the efficiency of generation of the second harmonic of optical radiation.3 cl, 4 dwg

Electrodynamic servounit and focusing lens // 2642450
FIELD: electricity.SUBSTANCE: rotor is connected to the stator via an elastic connecting piece. The stator bush is fastened to the rotor bushing. One of the stator bush and the rotor bush is a bush made of a material with permanent magnet properties, and the other is a bush made of non-magnetic material. The assembly to which the nonmagnetic material bush belongs comprises a pre-magnetizable element and an excitation coil. The pre-magnetized element is made of a material with the properties of a permanent magnet or a magnetizable material and is fixed relative to the sleeve of a material with permanent magnet properties. The resilient coupling is in a state of balance of forces in the event that no power is supplied to the field coil due to the presence of a pre-existing magnetic field force between the pre-magnetizable element and the core material sleeve.EFFECT: reduced excitation current and reduced power consumption.11 cl, 6 dwg

System and method of transforming two-dimensional videorecord to three-dimensional videorecord // 2642367
FIELD: physics.SUBSTANCE: method of converting two-dimensional videorecord to a three-dimensional one contains the stages at which: the direction of movement and length of movement is calculated between the part of video frame x and a part of the video frame y; the viewed frames L and R are determined on the basis of the movement direction; the viewed frame R based on the direction of movement and length of movement is changed to create a changed viewed frame R'. The change of the viewed frame R based on the direction of movement includes the deformation of the viewed frame R to the direction of movement for the extension components on the basis of the direction of movement so that the components in the modified viewed frame R', which are closer to the first side of the changed viewed frame R' are stretched less than the components closer to the second side of the changed viewed frame R'. The components are located in the array to represent the snapshot in the changed viewed frame R' and each component is a part of the snapshot.EFFECT: simplification of the conversion of two-dimensional videorecord into three-dimensional videorecord.11 cl, 20 dwg

Athermalised wideangle lens for ir spectral region // 2642173
FIELD: physics.SUBSTANCE: lens has four components. The first - a negative meniscus from germanium, the second - a positive meniscus, the third - a negative meniscus from zinc selenide. All menisci face the image plane with their concave surfaces. The fourth component - a positive lens. The second and the fourth components are made of oxygen-free glass IKS-25 or chalcogenide glass IRG-26. The second surfaces of the first and the second components are made aspherical with asphericity coefficient of 0.42 to 1.56 and from minus 0.86 to 2.6, respectively. Relations are made between the optical forces of the components and the air gaps between them, as indicated in the claim.EFFECT: increasing the field of view and expanding the temperature range of the lens.2 cl, 3 dwg, 5 tbl

Ophthalmological lenses with patterns containing inserts // 2642171
FIELD: medicine.SUBSTANCE: method for formation of a multi-element insert with a pattern for an ophthalmic lens comprises formation of the first rear curved insertion member, formation of the first front curved insertion member, conductive material application to one or both of the first front and first rear curved insertion members, attachment of at least a part of the electronic component to the conductive material, application of the first material to form the first sealant on the surface of one or both of the first front and first rear curved insertion members, combining the first front and first rear curved insertion members to form an ophthalmic insert, dye application to at least one surface of either or both of the first front and first rear curved insertion members.EFFECT: ability to change the appearance of the observer's eye through pattern application.10 cl, 15 dwg

Universal system for mounting optical sight for hand firearm // 2642163
FIELD: weapons and ammunition.SUBSTANCE: system consists of a main guide (10) fixed on the weapon unit (23a 23b, 23c), which is connected with a fastening element fixed an optical sight (4a, 4b, 4c) with the possibility of dismantling. The main guide (10) consists of a counter plate (12, 12A) positioned on the side of the weapon or retaining elements and an adjustment plate (11, 11a) held on the counter plate (12, 12A) or on the retaining elements in two planes perpendicular to each other. The optical sight (4a, 4b, 4c) is detachably fixed on the adjustment plate (11, 11a) by means of a receiving guide (7) or other retaining elements. On the upper side of the adjustment plate a separation plane (17) is formed, in which zone the sight (4a, 4b, 4c) can be removed from the weapon unit and moved to another weapon unit.EFFECT: creating universal system for mounting optical sight of hand firearm of the common type, in which there is no need in readjustment of the optical sight once adjusted by weapon unit when moving this optical sight to another weapon unit.10 cl, 7 dwg

Display device // 2642160
FIELD: physics.SUBSTANCE: device includes the following components: a front-side assembly that includes a display and a holder, wherein the display is configured to allow display an image on the display screen, and the holder supports the display on the periphery side and includes an attached projection; and a back-side assembly that includes a rear chassis and an attachment frame. The rear chassis is located on the side opposite the surface with respect to the display screen, and the attachment frame is attached to the surface on the side of the rear chassis display and includes a protrusion for attachment. The front-side assembly is configured in such a way as to adhere butt to the back-side assembly and to slide against the back-side assembly toward the surface of the display screen, allowing the attached protrusion to enter into the recess with the protrusion for attachment to allow the front-side assembly to join the back-side assembly.EFFECT: invention makes it possible to increase the adaptability of the work of assembling the display device.7 cl, 30 dwg

Binocular magnifier with changed optical force using lens technology of lens filled with liquid // 2642159
FIELD: physics.SUBSTANCE: binocular magnifier comprises a jumper comprising a connector for attachment to eyeglasses and magnifier eyepieces that contain a magnifying lens of fixed optical power, a sealed lens filled with liquid and having variable optical power; a control element to change the optical power of the lens, a distance sensor attached to the jumper, to measure the distance between the user and the object, and an electronic control device that is attached to the jumper, to perform a comparison of the measured distances with the focal length of the magnifier eyepieces. If the measured distance is outside the threshold range from the focal length, the optical power of one or more lenses is independently adjusted. Eyepieces, the distance sensor, the electronic device can be executed modularly with the possibility of removal and installation.EFFECT: ensuring the ease and continuity of the adjustment of the liquid lens for correcting the positive optical power and improving the binocular vision due to the independence of each lens setting.17 cl, 6 dwg

ethod of manufacturing oriented film and method of manufacturing body of display // 2642152
FIELD: physics.SUBSTANCE: oriented film includes the first to fourth regions having the first to fourth orientation angles. The first polarized light having the first intensity is emitted to the first and the second regions of the photosensitive film. The second polarized light having the second intensity is emitted to the second and the third regions of the photosensitive film. The third polarized light having the third intensity is emitted to the first to fourth regions of the photosensitive film. The polarization angles of the first-third polarized light differ from each other. The second polarization angle is larger than the first polarization angle, and the third polarization angle is larger than the second polarization angle. The polarization angle of the second or the third polarized light emitted to the third region is less than the third orientation angle. The third intensity is less than the first intensity and the second intensity.EFFECT: invention makes it possible to manufacture a film with different directions of orientation with a high accuracy.7 cl, 22 dwg

Composite lens and display system containing it // 2642149
FIELD: physics.SUBSTANCE: composite lens can be used in virtual reality devices. The composite lens comprises a central portion of the lens having the first focal length and at least one peripheral portion of the lens surrounding the central portion and having the second focal length. The first focal length is greater than the second focal length. The central portion of the lens and at least one peripheral portion of the lens have coincident focal planes. Within the range α, which determines the value of the central part of the observed object, the following equality is performed: where Δ0 - the distortion caused by the central part of the lens; Δ - the distortion caused by the peripheral part of the lens; - the focal length of the central part of the lens; ƒ' - the focal length of the peripheral part of the lens.EFFECT: improving the image quality by using a composite lens that provides a higher resolution in the central part of the image and a lower resolution in the peripheral part of the image.30 cl, 53 dwg, 2 tbl

ethod for manufacturing diffraction grids // 2642139
FIELD: physics.SUBSTANCE: method includes the formation of strokes of a given frequency, with the geometrical parameters in the cross section close to the set parameters of strokes of the diffraction grid, in a layer of the plastic material on the polished substrate, and the removal of the layer of the plastic material via a reactive ion-beam etching, the strokes formed in the layer of the plastic material are used as a technological strokes that are formed with a slope angle of the sloping faces to the surface of the substrate, equal to 3°-12°, and completely removed by reactive ion-beam etching under an angle of 90° to the surface of the substrate while the substrate in the formation of strokes with a set angle of "shine" and with the set period of the grid. The material of the technological strokes is a material the etching rate of which is higher than the etching rate of the substrate material.EFFECT: ensuring the possibility of improving the production quality of the diffraction grids.3 cl, 3 dwg

Device for virtual image displaying // 2642130
FIELD: physics.SUBSTANCE: device for virtual image displaying contains a video element, a lightguide element, a projection lens. In this case, the light guide element contains five surfaces that reflect light. Moreover, two surfaces of the light guide are made with asymmetrical curved surfaces, and the projection lens includes the lens surface in the form of a non-axisymmetric aspherical surface.EFFECT: providing a wide viewing angle, reducing the size and weight.11 cl, 26 dwg, 25 tbl

Product with luminous surface provided by led // 2642126
FIELD: lighting.SUBSTANCE: product with luminous surface comprising a light guide providing the mentioned luminous surface, wherein the light guide comprises a plurality of scattering elements to produce an almost uniform light output at the luminous surface, and a plurality of solid-state lighting elements. Each of the mentioned solid-state lighting elements is configured to emit a light beam into the light guide. The light guide also includes the first body configured to create corresponding optical images in the light guide by creating corresponding areas in the light guide which are shaded from the corresponding light beams.EFFECT: invention allows to exclude the need for a body on the light guide surface with uniform illumination.14 cl, 8 dwg

Fibre stabilization of optical path length difference in wide frequency range for long period of time // 2642124
FIELD: physics.SUBSTANCE: method of fibre stabilization of optical path length differences includes the operation of splitting a beam radiated by a laser into the first optical beam and the second optical beam. Also, the first optical beam is directed to the adjustable optical telescope and the second optical beam - to the reference optical telescope. The first directed beam is divided into the first optical beam and the beam of the adjustable optical telescope and the second directed beam - into the second optical beam and the beam of the reference optical telescope. Using an interferometer, a sinusoidal signal is obtained on the basis of the first and the second optical beams. The sinusoidal signal is filtered to generate a high-frequency signal for controlling the fibre expander and a low-frequency signal for controlling the translational table.EFFECT: collecting light from two telescopes through optical fibres with minimal differences in optical path lengths and with minimal optical dispersion by using a reference laser connected to these two optical fibres.15 cl, 4 dwg

Terahertz-infrared converter for visualization of sources of terahertz radiation // 2642119
FIELD: physics.SUBSTANCE: converter consists of a base and transducers of terahertz radiation into infrared radiation. The base is made in the form of a matrix, transparent in the terahertz and infrared ranges of frequencies. Transducers are evenly distributed in the volume of the matrix and are made in the form of gold nanoparticles. The diameter of gold nanoparticles is determined by the formula D≈[(8/π)⋅(mAu/ρ)⋅(EF/hν)]1/3, where D is a diameter of gold nanoparticles, mAu - a mass of the gold atom, ρ - a density of gold, EF - Fermi energy of gold, hν - a photon energy of terahertz radiation.EFFECT: increasing the conversion efficiency and sensitivity of the device.2 cl, 3 dwg, 2 tbl

Ophthalmological lenses with inserts containing painted pattern // 2642112
FIELD: medicine.SUBSTANCE: multi-element insert contains a rear curved insert element and an adjacent front curved insert element, a conductive material pattern on one or both front and the rear curved insert elements, an electronic component attached to one or both front and rear curved insert elements with attachment is at least partially provided to conducting material, and a painted pattern on the surface of one or both front and rear curved insert elements. The ophthalmic lens structure contains an encapsulating layer, which comprises a multi-element ophthalmic insert and is a hydrogel.EFFECT: ability to close or make the components located in the inset under the pattern less visible.24 cl, 6 dwg

Composite construction with built-in measuring system // 2641638
FIELD: measuring equipment.SUBSTANCE: composite construction comprises a composite material and an optical fiber placed in this composite material. The optical fiber contains many quantum dots to enhance its nonlinear optical properties. The quantum dots may be located in the core, in the shell and/or on the surface of the optical fiber. The optical fiber is configured to transmit signals and is made sensitive to a defect in the composite material. The quantum dots create a nonlinear effect, such as second order effect, in response to a defect in the composite material. On the basis of registration and analysis of signals having a nonlinear effect created by the quantum dots, a defect in the composite material may be detected.EFFECT: possibility of detecting defects in a composite construction.12 cl, 7 dwg

Display panel and its structure of fanout lines // 2641636
FIELD: information technology.SUBSTANCE: display panel includes a display area and a communication area. The display area includes a number of signal lines, and the communication area includes a contact pad. The structure of the fanout lines includes a number of fanout lines, located between the display area and the communication area. The first outputs of the fanout lines are connected to the contact pad, the second terminals of the fanout lines are connected to the signal lines. The fanout line also includes an intermediate section between the first terminal and the second terminal and is a conductive line with a two-layer structure including the first conductive layer and the second conductive layer. The projections of the first conductive layer and the second conductive layer disposed in the middle section are completely interleaved with each other in the plane of the display panel, the first conductive layer being located under the second conductive layer. The two-layer structure further includes an insulating layer and a passivation layer, wherein the insulating layer is disposed between the first conductive layer and the second conductive layer, and the passivation layer is disposed above the second conductive layer and the insulating layer.EFFECT: risk of electrostatic discharge between the two fanout conducting layers is reduced, thereby the output volume is increases and the cost price reduces.12 cl, 7 dwg

Infrared lens with variable focal distance // 2641513
FIELD: physics.SUBSTANCE: lens includes the first positive meniscus with one aspherical surface located in the course of the ray, facing concavity to the image plane, the second meniscus with the possibility of rotating it by 180° and moving along the optical axis, and the third positive meniscus with one aspherical surface turned concavity to the image plane. The aperture diaphragm is located between the third meniscus and the image plane. Air gap d6 between the third meniscus and the aperture diaphragm is d6≤0.5⋅S'ƒ'len, where S'ƒ'len - the rear focal length of the lens.EFFECT: reduction in the overall dimensions of the optics along the diameter and length, and a decrease in the weight of the optical parts while maintaining aperture and acceptable image quality.1 dwg, 2 tbl

ethod for centering lens in rim and rim therefor // 2641320
FIELD: physics.SUBSTANCE: method involves installing the lens on a flat support flange of a cylindrical hole in the intermediate portion of the rim, which is placed by the flange on the support flange of the cylindrical hole in the main rim. The rim is rotated around its base axis, the runout of the center of curvature of the first lens surface is measured relative to the center of curvature of the second lens surface, the lens is moved radially on the flat support flange of the intermediate part of the rim to align the centers of curvature of the first and the second working surfaces of the lens, and the lens is fixed in the intermediate part of the rim. The runout of the centers of curvature of the first and the second surfaces with the axis of rotation is measured, the intermediate part of the rim is shifted to the support flange of the main rim for combining the centers of curvature of the first and the second surfaces with the axis of rotation and the position of the intermediate part of the rim is fixed in the main rim. The rim has an external cylindrical base surface and a flat external base flange which form the reference axis of the rim, an internal cylindrical opening with a flat support flange in which the intermediate cylindrical part is inserted with an increased seating clearance, the said intermediate cylindrical part having a flat support flange for mounting the lens.EFFECT: increasing the accuracy of centring the lens while maintaining centring on both working surfaces of the lens and simplifying the manufacturing of the main rim.6 cl, 5 dwg
Optionally transferable optical system with reduced thickness // 2641316
FIELD: physics.SUBSTANCE: optical system includes a system of synthetic images, which consists of one or more structures of the structured image icons, which are largely in contact with one or more structures of focusing elements, but not fully included in them. Focusing elements are made in the form of a matrix of micro lenses or micromirrors. At the same time, one or more of the focusing element structures are focused on one or more image icon structures and form at least one synthetic image of at least a portion of the pictograms of the images. When this interstitial space between the focusing elements in one or more structures of the focusing elements not included in the formation referred at least one synthetic image, and the image icons intersect with a depth of focus of the focusing elements.EFFECT: reducing the overall thickness of the authentication system applied to the surface.34 cl, 7 dwg
ethod of increasing service life of optical cable // 2641298
FIELD: technological processes.SUBSTANCE: according to the method, the construction length of optical cable is subjected to temperature cycles, for which the drum with construction length of the optical cable is placed in a climatic chamber in which thereafter several temperature cycles are performed, wherein, at the beginning of each cycle, a predetermined positive temperature is set in the climatic chamber, then during the cycle, the temperature in the climatic chamber is gradually lowered to the set negative values, then the temperature is subsequently increased in the climatic chamber to the set positive values, after which the cycle is completed, wherein the transition from one set temperature value to the other is carried out for a predetermined time interval and each set temperature value is set in the climatic chamber for a predetermined time interval.EFFECT: extending the service life of modular optical cable.2 dwg

ethod of controlling phase shift in interference systems // 2640963
FIELD: measuring equipment.SUBSTANCE: in the method of controlling the phase shift in interference systems, including the formation of coherent monochromatic radiation by the laser source, its separation into the reference and object light beams by a collimating system, directing them on measurement object and supporting surface to form a phase shift in them intended for the interpretation of interference pattern at their reflection on the photodetector, the phase shift Δϕ of the reference and object light beams is formed by their Bragg diffraction on the similar by number and sign orders by passing on the section between collimating system and the support surface and the measurement object, respectively, through identical acousto-optic modulators, on which the reference vibrations U1 and U2 are fed from the common generator so that U1=U0 cos[2π f×t+Δϕ] and U2=U0 cos[2π f×t], where U0 is amplitude of reference oscillations; f is frequency of reference oscillations of acousto-optic modulators; t is the time of reference oscillations, and it is possible to supply the reference oscillations U1 on the acousto-optic modulator through which the object light beam passes, and the reference oscillations U2 - on the acousto-optic modulator through which the reference light beam passes, or vice versa.EFFECT: increased reliability through improved accuracy and noise immunity.3 cl, 3 dwg
Optical material of infrared range and method of its production // 2640764
FIELD: physics.SUBSTANCE: optical material is a single crystal indium InI monochloride of rhombic syngony with a spectral transmission region of up to 51 mcm. A method of producing InI includes a pre-treatment of the initial charge by rectification, the growing of the single crystal by Bridgman method at a speed of broach of not more than 2.0 mm/h in a quartz ampoule made of glass "Pyrex", the separation of the muddy part from the end part of the grown crystal and the fourfold crystal-physical clearance obtained at the previous stage of the high-purity material by re-growing the crystal with the intermediate separation of the end muddy part of the crystal after each cleaning.EFFECT: invention allows to obtain single crystals of InI, transparent from the visible to the far infrared range of the spectrum, non-hygroscopic.2 cl, 3 dwg, 1 tbl, 6 ex

Protective device for projecting set of synthetic images // 2640716
FIELD: physics.SUBSTANCE: device includes a set of focused elements and, at least, one layer of the image, which together project a different image, wherein, at least, one image layer consists of many individual digitized areas, each region is identical to the subset of optical prints of each focusing element, and regions are separate, and each point in each subset is the nearest to the appropriate focus element, and each region is divided into a number of individual pixels, equal to the number of images, each image is exposed to digital processing, the number of pixels in each digitally transformed image is equal to the total number of focusing elements, pixels in each processed image are distributed to the same location within each digitized region.EFFECT: projecting the images defined by the viewpoint by creating a layer of another image.21 cl, 40 dwg

Visual alarm device for motor vehicle // 2640678
FIELD: physics.SUBSTANCE: visual alarm device (1) for motor vehicle comprises a light source (5), a light guide (3), and a diffusive lens (4). The light source is configured to emit light signals. The light guide is arranged to direct the light signals through a plurality of apertures (31) of the light guide (3) so as to project a plurality of light images (6) onto the vehicle surface (7). The diffusive lens is arranged to scatter light signals coming from the light guide (3).EFFECT: possibility to send visual messages to the driver on the windshield of the car, without interfering the driver to drive the vehicle.9 cl, 1 dwg

Liquid crystal display and multi-screen display // 2640651
FIELD: physics.SUBSTANCE: liquid crystal display includes: a liquid crystal panel; a light source of the LED for illuminating the back surface of the said liquid crystal panel with light; a diffusion plate disposed between the liquid crystal panel and the light source of the LED; a reflective sheet located on the side opposite the diffusion plate with respect to the light source of the LED; a panel fastening means disposed on the back surface side of the reflective sheet; and at least one photodetector located on the back surface side of the reflective sheet to detect light reflected by the back surface of the diffusion plate and propagated in the gap between the reflective sheet and the panel fastening means.EFFECT: increasing the accuracy of detecting the brightness of the source.10 cl, 11 dwg
ethod of obtaining polarization converter // 2640603
FIELD: physics.SUBSTANCE: oxide glass is treated with a focused laser beam. The glass melting is performed at temperatures from 1650 to 1700°C. The composition of the glass is as follows, in mol. %: MgO 5-10, CaO 5-10, B2O3 5-10, Al2O3 15-20, SiO2 55-65.EFFECT: simplification of the technology, reduction of the standard deviation of the value of the phase shift of the nanogrid.2 ex, 1 dwg
Contact lenses containing water-soluble polymers or copolymers of n-(2-hydroxyalkyl)methacrylamide // 2640593
FIELD: medicine.SUBSTANCE: ophthalmic article is made of hydrogel as a cross-linked polymer matrix and contains at least one water-soluble, non-reactive hydrophilic polymer containing less than 20 mole % of anionic repeating units and repeating units derived from a compound of formula I where R1 is hydrogen or methyl; R2 is H or C1-4 alkyl substituted by at least one hydroxyl group; R3 is C1-4 alkyl substituted by at least one hydroxyl group. The water-soluble hydrophilic polymer has a polymerization degree of 100 to 100,000, and is free of end hydrophobic polymer units. Method for ophthalmic article wettability improvement includes ophthalmic article contacting with a solution containing at least one of the above water-soluble nonreactive hydrophilic polymer, under conditions sufficient for inclusion of an effective lubricant quantity of hydrophilic polymer into the ophthalmic article. The ophthalmic solution contains from 10 m. p. and to 10 wt % of at least one water-soluble, nonreactive hydrophilic polymer.EFFECT: invention allows to increase the wettability of an ophthalmic article without surface treatment.29 cl, 1 tbl, 1 ex

Non-polarized acousto-optical monochromator // 2640123
FIELD: measuring equipment.SUBSTANCE: device contains a noncollinear acousto-optic (AO) filter in which the orientated facet of the acousto-optic filter cell crystal is used as an element for useful diffracted light beam separation. To compensate for the filter crystal dispersion, an adjusting prism made from the AO filter material is used, located behind the output face of the AO filter crystal along the diffracted light beam direction.EFFECT: increased transmittance, simplification and cheaper construction.2 cl, 2 dwg, 1 tbl

Portable device for fixing connector to optical fibre // 2640096
FIELD: physics.SUBSTANCE: inventive connector is configured to receive an optical fibre and further comprises: a connector housing, a fibre fastening member disposed in the connector housing, and a thermoformable material disposed around the fibre attaching member and mounted to receive the optical fibre between the fibre attaching member and the thermoformable material and for attaching the optical fibre to the fibre attachment member. Herewith the fibre optic connector for mechanical connecting to another fibre optic connector comprises an optical fibre having a bare end that has an end face and comprises a core and a shell surrounding the core, whereint the shell has a radius of curvature at the end face in the range from 0.4 mm to 4 mm.EFFECT: high wear resistance with a sequence of joints and undocking.29 cl, 69 dwg

Single-mirror off-axis lens // 2639995
FIELD: physics.SUBSTANCE: lens includes longitudinal and transversal elements, a focusing node located therein on the optical axis, a backlash-free linear movement with a carriage installed on the housing, a mirror installed on the carriage, a rod drive of the movement, one end of which is connected with the housing, and the other one - with the carriage, and a main mirror secured to the housing. The focusing node is also installed on the carriage, the guiding movements are installed at an angle ϕ to the optical axis of the lens, found from the equation given in the formula of the invention, and the actuator rod of the movement is made of a material with a large coefficient of linear expansion and is fixed so that moves the carriage, compensating thermal change of the housing dimensions.EFFECT: simultaneous stabilization of the focus position and the sighting axis with the temperature changes and simplification of the design of the thermocompensator assembly while maintaining the operating temperature range.2 cl, 1 dwg

Lighting device with circular distribution of light // 2639980
FIELD: lighting.SUBSTANCE: device (2) comprises a light source (210) having a main direct radiation direction (20) and a bulb (220) in which a light source (210) is located. Bulb (220) contains the upper land (225) scattering properties, and is placed to reflect light from a source (210) light and the main direct (20) radiation and to miss part of the light from a source (210) light.EFFECT: distribution of the light intensity of the lighting device is more uniform, since the intensity of light in the opposite and lateral directions increases, while the light in the main forward direction of the radiation also passes.10 cl, 22 dwg

ethod and apparatus for hard insert encapsulation into contact lens for vision adjustment in patients with astigmatism // 2639785
FIELD: medicine.SUBSTANCE: method for formation of an ophthalmic lens with a rigid insert, which contains the following steps: addition of an initial volume of reactive monomers mixture to the anterior curvature mould part, at that, the initial volume of the reactive monomers mixture is less than the volume needed for ophthalmic lens formation; rigid insert placement on the initial volume of the reactive monomers mixture; preliminary curing of the initial volume of the reactive monomers mixture for fixed retention of the rigid insert near the anterior curvature mould part, with preliminary curing forming the anterior curvature unit; addition of an extra volume of the reactive monomers mixture required for ophthalmic lens formation, to the anterior curvature unit. The initial and the extra volumes of the reactive monomers mixture encapsulate the rigid insert, posterior curvature mould part placement near the anterior curvature unit, forming the anterior and posterior curvature unit; curing of the initial and extra volumes of the reactive monomers mixture with ophthalmic lens formation; extraction of the anterior and posterior curvature unit; lens extraction from the extracted anterior and posterior curvature unit; ophthalmic lens hydration.EFFECT: expansion of the arsenal of technical means.17 cl, 5 dwg, 1 tbl
Polymer composition and material with improved characteristics of turbidity and light transmission, modificator and method of producing polymer composition // 2639778
FIELD: chemistry.SUBSTANCE: polymer composition comprises a polymer matrix and crosslinked copolymer microspheres. Crosslinked copolymer microspheres represent an alternating copolymer formed from monomers with anhydride, amide and/or imide groups, and olefin monomers and/or furan and its derivatives, and crosslinked by the crosslinking agent. Preferably, the composition has a turbidity of, at least, 92%, and a light transmission of, at least, 55%, more preferably a turbidity of, at least, 95%, and a light transmission of, at least, 59%.EFFECT: material produced from the polymer composition for the present invention, has excellent light-scattering properties, which contributes to energy savings, low cost, and easy production.30 cl, 1 tbl, 25 ex

Photon computer // 2639698
FIELD: physics.SUBSTANCE: proposed photon computer (FC), which includes a element that contains a processing element that contains a compute module connected via an optical input-output switch device, and contains a source of laser radiation, more than one processor elements connected via the first group of the optical input-output switches, bidirectional optical communication channels in the distributed multi-processor computer system and connected via their second group of the optical input-output bidirectional communication channels to one inputs-outputs of the input/output device, the first of the other inputs / outputs of which is connected by a bidirectional optical communication channel with the first input-output of the laser source, and the second of the other input-output devices is connected by a bidirectional electronic communication channel with the first input-output conversion device of the computing tasks in the program for the FC, the second input-output of which is connected with the second input-output of the laser source.EFFECT: increased productivity and energy efficiency.15 dwg
Display device, head display, display system and control method for display device // 2639654
FIELD: physics.SUBSTANCE: transmissive type display device is provided that allows a user to visually recognize a display screen as a virtual image and visually recognize a focal distance display screen that is consistent with the user convergence angle. The device comprises an object recognition section, a distance detection section, a display control section. The display control section controls the screen for displaying the image surrounding the actual object to direct the user's visual line to the convergence angle, which is consistent with the detected distance, on the display screen.EFFECT: ensuring that the virtual object is perceived in the correct location relative to the real object due to the ability to adjust the user's convergence angle so that it corresponds to the detected distance between the user and the real object.13 cl, 12 dwg

ethod and device for recognizing fingerprints // 2639648
FIELD: physics.SUBSTANCE: in the method that is applicable in an electronic device with a liquid crystal display screen, in which the sensors of the fingerprint recognition and light-sensitive sensors of the LCD display are distributed, the reception of the request command of the fingerprint recognition initiated by user's finger is carried out; the area of shielding is determined, consisting of the provisions light-sensitive sensors shielded by the fingers upon receiving the command of the fingerprint recognition; a part of sensors of the fingerprint recognition is selected, depending on the shielding field; the selected part of sensors of the fingerprint recognition is controlled for the fingerprint recognition.EFFECT: reducing the consumption of resources caused by the fact that all fingerprint recognition sensors located on the whole surface of the LCD screen, have the ability to recognize fingerprints, that preserves the used resources.13 cl, 10 dwg

Electroactive ophthalmological device with multi-state component // 2639623
FIELD: physics.SUBSTANCE: device contains a front curved optical part containing a front curved upper and lower optical surface, a rear curved optical part containing a rear curved upper and lower optical surface, a cavity formed by front curved lower optical surface and rear curved top optical surface, a fluid with the first refractive index and a dielectric film in contact with part of the fluid and a covering electrode, capable to establish the electrical field, gas with the second refractive index that differs from the first refractive index; and one or more sections of the tank. Reduction of the tank volume leads to the movement of fluid into the cavity through the channels and the exchange of gas and fluid. In the first discrete state, the cavity contains fluid, and in the second - gas.EFFECT: providing a variable focal length that varies discretely.21 cl, 15 dwg

Devices and methods for contact lense with inward-facing light source // 2639616
FIELD: physics.SUBSTANCE: eye-mounted device comprises a transparent material having a central region, concave and convex surfaces, a ring-shaped substrate, at least, partially embedded in the transparent material, a light source disposed on the substrate far from the central region and configured to emit light that can be seen through the pupil, and a circuit located on the substrate and configured to modulate the light emitted by the light source. The concave surface is removable on the surface of the cornea with overlapping a pupil, and the convex surface is designed to be compatible with the eyelid movement.EFFECT: ensuring the relationship between the user and the eye-mounted device.20 cl, 14 dwg
Control method by laser beam // 2639609
FIELD: physics.SUBSTANCE: control method by a laser beam, in which a rotating platform with a mirror is placed in the magnetic field to reflect the incident laser beam located on one of its sides. On the other side of the platform, an electric current conductor and a rotary mechanism are located. And the conductor is made in the form of ring turns, which are located along the perimeter of the turntable platform. The swing mechanism is installed in the center of gravity of the platform. A magnetic field is formed by a system of electromagnets. Current of the ring turns and electromagnets is controlled from the condition of reflection of the laser beam from the mirror in a given direction.EFFECT: increasing the responsiveness of the laser beam control.1 cl
Ophthalmological lens with communication system // 2639608
FIELD: physics.SUBSTANCE: method for providing the original properties of an ophthalmological lens, which includes power supply to the communication system that forms part of the ophthalmic lens; transmission of data relating to a unique identifier to a processor in communication with the communication system; generation of the original properties of the lens and correlating them with a unique identifier; encryption of a unique identifier and registration of a unique identifier in the communication system in the form of an encoded signal that allows access to a database containing information on the original properties of the lens.EFFECT: improvement of the lens.19 cl, 8 dwg
 
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