Optionally transferable optical system with reduced thickness

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

 



 

Same patents:

FIELD: physics.

SUBSTANCE: disclosed is an image capturing device which captures a plurality of primary images in continuous capturing mode. The image capturing device includes an image capturing means configured to capture a plurality of auxiliary images during the interval between capturing a primary image and capturing the next primary image. The device also comprises a means of determining a primary object configured to determine a primary object. Furthermore, the device comprises first and second object tracking processing means. The first object tracking processing means is configured to detect an area where an object identical to a primary object exists, from a first area which is part of a first auxiliary image, from a plurality of auxiliary images.

EFFECT: high accuracy of the object tracking function of an image capturing device during continuous capture owing to elimination of time delay between detection of an object and obtaining focus information at the position of the object.

10 cl, 12 dwg

FIELD: physics, optics.

SUBSTANCE: invention relates to optical instrument-making, particularly optical benches and holographic tables. The optical adjustment table comprises a base with a dovetail profile, a support with a lock in the upper part, a lifting screw with a trapezoidal thread, fastened in the upper part to the fixed platform of the table, a movable platform of the table driven a micro-screw. The fixed platform is connected to the base of the table by an expanding mechanical connection - tractor. A screw with a trapezoidal thread is used to drive the movable platform. In the base of the tractor there is a curved thread for a retention screw designed to fix the base of the tractor after an adjusted angle. A transparent arrow with a guide mark is attached to the outer side of the base of the tractor and a scale in degrees is placed on the upper plane of the base of the table.

EFFECT: enabling cross movements and adjustment movements in the form of rotations about a vertical axis.

5 dwg

FIELD: instrument making.

SUBSTANCE: method is based on joint use of a long-exposition image and series of N spectrally-filtered short-exposition images.

EFFECT: improved quality of an image of a probed section of earth surface.

2 dwg, 1 tbl

FIELD: electricity.

SUBSTANCE: invention relates to a LED light source made with the ability to retrofit the lamp that uses the light source with the filament. The light source comprises a light guide in which light is entered from one or more LEDs of the light head located at one end of the light guide, and a reflector having a reflecting surface, located on another end of the light guide and facing the light guide allowing reflection of the light incident on the reflecting surface. According to the present invention, the reflector comprises at least one transmissive part located so that at least part of the light incident on at least one transmissive part is transmitted through the reflector, for example, the through opening extending along the axis, providing the light intensity of the light source almost independent from the viewing angle.

EFFECT: increased efficiency of lighting.

12 cl, 9 dwg

FIELD: physics.

SUBSTANCE: apparatus for fixing an optical sighting device consists of a mounting plate 1 on which there are opposite blind-end graded slots 2. Supports 4 are mounted in the slots 2 such that they are able to rotate on axes 3, said supports having a radius surface 5 on which there are liners 6 made of elastic material, the outer side of which has a slant 7. The axes 3 are mounted in slots 8 perpendicular to the graded slots 2 and are fixed with screws 9. In the graded slots 2 under the supports 4, there are plate springs 10, one end of which forced into a cut 11 made in the step 12 of the slot 2 and the other rests on the edge of the supports 4.

EFFECT: fast and reliable fixing of the device when switching the device from a working position to a stowed position and vice versa.

5 dwg

FIELD: radio engineering, communication.

SUBSTANCE: device includes N light-emitting and N light-sensitive elements, said elements being placed between planes perpendicular to an axis of rotation; the light-emitting elements are mounted inside a shaft on its transparent part, and the light-sensitive elements are mounted inside a bushing, wherein the space inside the bushing and the shaft is divided by corresponding partition walls into light-proof sections, wherein the partition walls dividing the shaft into sections are placed in the same plane as partition walls dividing the bushing into sections.

EFFECT: enabling transmission of information over multiple channels.

1 dwg

FIELD: transport.

SUBSTANCE: invention relates to measuring and testing instruments and aims at controlling ICE timing phases and measuring steering wheel free travel. Proposed device comprises bracket with tightening screw and angle meter including base with built-in magnets and case with graduated torus-like glass ampoule filled with fluid with air bubble and angle meter scale with count start from left to right. Note here that said case with ampoule is articulated with angle meter base. Proposed device differs from know designs in that angle meter is integrated with bracket to arrange the latter vertically with its screw directed downward. Note also that angle meter base is connected by magnets to bracket vertically with its hinge directed upward. Besides, said case with ampoule may be located on the right of hinge. Note here that aforesaid scale with origin of count from right to left is applied on opposite side of scale with origin of count from left to right.

EFFECT: control over ICE timing.

3 dwg

FIELD: physics.

SUBSTANCE: device which forms two fields of vision with different magnification has a first component in form of a biconvex lens with a reflective coating at the centre of a second surface and a second component in form of a divergent Mangin lens with a reflective coating on a second surface, the central zone of which does not have a reflective coating. There is a third component in form of a biconvex lens and a fourth component in form of a biconcave lens, having total optical power equal to minus 0.5-1.5 times the optical power of the first lens of the device. Distance between the first and second components is equal to (0.2-0.6)∙F1. Distance between the second and third components and between the third and fourth components is in the range of (0.001-0.02)∙F1 each, where F1 is the focal distance of the first lens of the device.

EFFECT: high information content of viewing and longer viewing distance in wide and narrow fields of vision owing to high value of magnification of the device.

2 dwg

FIELD: physics.

SUBSTANCE: stereoscopic images of the monitored underwater space are taken directly in the aquatic medium, wherein the monitored space is illuminated and the serial images obtained are analysed. When implementing the method, stereoscopic images are simultaneously taken from several spatially distributed points, the direction of observation and the distance between which is selected based on the condition for providing maximum possible continuity of viewing the monitored space. All stereoscopic images obtained at each given time instant are analysed and boundaries of the monitored space and/or protected object and/or a region in its immediate vicinity are illuminated. Foreign objects are identified from their shadows from light sources on multi-aspect images obtained beyond the illuminated area.

EFFECT: efficient monitoring of extended and large-area underwater areas while preserving advantages of stereoscopic photography.

4 cl, 7 dwg

FIELD: physics.

SUBSTANCE: method of making a dial from a glass polished work piece involves the following sequence: grease is removed from the work piece using lint-free napkins saturated with organic solvent. The work piece is rotated at 3500 rpm, successively adding a cleaning solution and water. First thermal processing is done on a hot plate (the work piece of the dial is put on the plate with a gap, and when making a scale, for example the work piece is directly in contact with the plate) at 130°C in an enclosed volume in the presence of an adhesive. Positive photoresist based on a diazo-compound is deposited on the work piece, which is rotated at 1000 rpm at the first stage and then unwound at 3500 rpm with deviation of ±10 rpm. Second thermal processing is done in the same way as the first, but without adhesive. Exposure is done on an installation for making topological features with thickness of 1.5 mcm. The developer is placed in the working zone of the work piece, rotating at 3500 rpm. The work piece is then washed with water. A chrome masking coating is deposited on the work piece through vacuum deposition. The protective photoresistive coating is removed using organic solvent. Non-aggressive organic solvents are used in all operations. Air in the room complies with class 5 ISO, GOST ISO 14644-1-2002, and the water used does not contain particles with size greater than 0.2 mcm.

EFFECT: improved technical characteristics and quality of components, cutting on labour input and consumption of material by half, improved safety level of the method with respect to occupational and environmental safety.

FIELD: physics, optics.

SUBSTANCE: apparatus for generating stereoscopic images comprises an objective lens for forming an image of an object in the form of a real image or an imaginary image, as well as a plurality of optical image-forming systems which form a plurality of light streams of an object from capturing, which are output on different paths from the optical system of the objective lens and then in the form of images with parallax, using a plurality of independent optical systems. The focal distance of the objective lens and the distance (L) from the rear principal point of the optical system of the objective lens to the front principal point of the optical image-forming system satisfy the relationship: |f/(L-f)|≤1, where the value of the focal distance is positive when the optical system of the objective lens forms an image of the object in the form of a real image, and the value of the focal distance is negative when the optical system of the objective lens forms an image of the object in the form of an imaginary image.

EFFECT: maintaining image quality during stereoscopic capturing, when the captured object and the imaging apparatus are located at a finite distance.

2 cl, 26 dwg

FIELD: physics.

SUBSTANCE: display device contains a display panel with the array of display pixels and the array of elongated lenses, lens structure for forwarding of output signal from various pixels into various spatial positions to make possible viewing the stereoscopic image. The lens structure contains electrically switched layer of a liquid crystal, which sets a lens image or lens replicated image. Orientational regularity of liquid crystal from the layer of liquid crystal is electrically switched so, that the lens structure is switched between two-dimensional and three-dimensional modes. In the two-dimensional mode the orientational regularity of the liquid crystal is aligned in the first direction, actually, in the plane of lens structure, and in the three-dimensional mode the orientational regularity of the liquid crystal is aligned in the second, perpendicular direction, also actually in the plane of lens structure. Output light of the display panel is polarized in the second direction for two-dimensional and three-dimensional modes, meanwhile in the two-dimensional mode the optical axis of the switched layer of the liquid crystal is oriented perpendicular to lenses.

EFFECT: maintaining perpendicularity between output light of the display panel and the direction of the orientational regularity of the liquid crystal for two perpendicular planes of observation.

10 cl, 7 dwg

FIELD: games.

SUBSTANCE: invention relates to attractions in amusement parks. The device of projecting an image is proposed. The device has a housing with a transparent projection surface. The stroboscopic light source is supported by the housing and is configured to illuminate the transparent projection surface. On the transparent projection surface an image is located. To activate and set the duration of the stroboscopic light source at a predetermined time, the controller is configured. The device also comprises a central processor for receiving data about the vehicle position to move to the viewer based on the sensors located on the tracks or the vehicle.

EFFECT: creation of physiological illusion in the invited viewer.

15 cl, 9 dwg

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to a method of detecting the level of perception of depth of patterns on plane images. The method includes calibrating perception, which comprises recording coordinates of the left and right eyes of an observer when sensing a three-dimensional (3D) image using a 3D raster image and a stereogram with a known horizontal disparity. The method also includes recording coordinates of the left and right eyes when observing plane images. The level of perception of depth of patterns on plane images is determined based on comparing the difference in coordinates of the left and right eyes obtained during calibration and the difference in coordinates of the left and right eyes obtained while observing plane images.

EFFECT: determining horizontal disparity relationships in conditions of sensing stereoscopic depth of stereograms, the depth of perception of a raster image with perception of depth of a plane image.

2 cl, 7 dwg

FIELD: physics, optics.

SUBSTANCE: infrared polarisation light filter is described, installed on an emitter of infrared sync signals of a device of stereoscopic image display. The device alternately displays the right and left images by the method of time separation using polarised light in one direction. Glasses include polarising plates arranged near in the right and left fields of view. On the front surfaces of polarising plates above each other there are opening/closing fields of view and liquid crystal cells that adjust inclination. A sync signal receiver is installed on the frame of the glasses and receives a polarised infrared light sync signal. Liquid crystal cells that open/close fields of view are actuated synchronously so that the right and left fields of view alternately open/close relative to the displayed light of the device of stereoscopic light display. Voltage is applied to liquid crystal cells that adjust inclination in accordance with the angle of inclination. A detector of the inclination angle is also installed on the frame. The angle of rotation of the light polarisation plane in liquid crystal cells that adjust inclination is regulated. Maximum screened condition is always maintained during closure of fields of view.

EFFECT: prevention of crosstalk.

13 cl, 9 dwg

FIELD: physics, optics.

SUBSTANCE: invention relates to the stereoscopic display, which can display the images characterized by binocular parallax with the time-division multiplexing. At the output of the image for the right eye on the left side of the centre line a light blocking field BR1 is formed, and at deduction of the image for the left eye on the right side of the centre line a light blocking field BR2 is formed. When an observer is located in these areas, the right eye of the ER observer sees separately the image for the right eye, and the left eye of the EL observer sees separately image for the left eye. As a result, even when the observer watches the stereoscopic display by unaided sight, he can observe the stereo-image, while the eyes of the observer are located in the light blocking fields BR1, BR2. The image for the right eye and image for the left eye are combined in the field differing from the light blocking fields BR1, BR2. Some observers can simultaneously observe the stereo-image, if they use glasses for view.

EFFECT: decreasing overall dimensions.

6 cl, 12 dwg

FIELD: printing.

SUBSTANCE: method is implemented using a printing system comprising a control module made with the ability to coordinate the work of basic units of the system during printing; generation module of images under microlenses based on a three-dimensional model of the object; a projection module made with the ability of local exposure of the photographic material at the location of each of the microlenses and recording to it of the generated microimages; a scanning system made with the ability of sequential recording the generated microimages on photographic material; a lamination unit made with the ability of application of the lenticular screen on exposed and processed photographic material and completion of production of the integral photograph. In the second embodiment, the system comprises a module of constructing a three-dimensional object model on the basis of a series of two-dimensional digital images recorded from different angles.

EFFECT: ensuring full parallax and high resolution of three-dimensional image.

17 cl, 9 dwg

FIELD: medicine.

SUBSTANCE: invention refers to a stereoscopic image generator. A unit 311 for an image projection on the surface of a horopter aims at a non-stereoscopic image projection through a signal line 129 on a cylindrical surface (the horopter) comprising the horopter circumference. The horopter circumference is specified, e.g. with the use of a radius as the horopter circumference data. Besides, the relation of two eyes is specified as an eye distance. A unit 316 for projection on a display surface for the right eye is used for projection of the image projected on the horopter, on the display surface of the right eye. A unit 317 for projection on the display surface for the left eye is used for projection of the image projected on the horopter, on the display surface of the left eye. For this reason, the identical images on the retina are supplied to both eyes to eliminate the effect of physiological stereoscopic elements and to produce a stereoscopic depth.

EFFECT: eliminating the effect of the physiological stereoscopic elements by the image processing using projection transformation.

6 cl, 33 dwg

FIELD: physics, optics.

SUBSTANCE: invention relates to optoelectronics and display equipment and can be used in high-speed 3D glasses when operating with virtually any type of 3D display, designed to operate with active 3D glasses with standard (60-160 Hz) and high (hundreds of hertz) and ultra-high (up to several kilohertz) frame frequency. According to the invention, a layer of non-helicoidal ferroelectric liquid crystal with optimised physical parameters is used in optical shutters of high-speed liquid crystal 3D glasses.

EFFECT: high optical contrast of ferroelectric liquid crystal shutters, low amplitude of control voltage.

3 cl, 6 dwg

FIELD: physics.

SUBSTANCE: display includes an individual stereo projection module situated on a means of movement capable of moving to an arbitrary point of the optical system of the display, a unit for generating and preprocessing images, an optical element which forms a region for viewing 3D images, a means of detecting and tracking the position of a viewer, and a system for obtaining, storing and generating 3D information. The individual stereo projection module is in form of a microprojector-fitted robot-aided, self-propelled and self-adjusting module with self-contained power supply, wireless communication, a video surveillance and orientation system and a distributed computer system, capable of concurrently processing 3D information and facilitating interaction with other similar modules, and capable of forming, in the region of location of the optical element which forms the region for viewing 3D images, a real image of the displayed information, and operating as an intelligent module for displaying 3D information individually for each viewer during arbitrary movement thereof.

EFFECT: enabling formation of a non-aspect 3D image aimed at each viewer and allowing change in position of the viewers in a wide range.

15 cl, 13 dwg

FIELD: printing.

SUBSTANCE: document comprises a substrate and a protective element comprising the first and the second structures contained on the substrate. The substrate also comprises a region which is translucent or even transparent, and within which the first and second structures are located at least partially. The first and the second structures within the transparent area when the document is viewed in reflected light have at least the first and the second colours, respectively, and when the document is viewed in transmitted light, a mutual change of the said first and second colours occurs.

EFFECT: improved protection.

12 cl, 14 dwg

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