Multipoint ophthalmological laser probe |
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IPC classes for russian patent Multipoint ophthalmological laser probe (RU 2435544):
               
 Hologram filter (versions) / 2376617
Hologram filter relates to devices for filtering optical radiation. The filter consists of a transparent substrate, coated with a transparent polymer film which contains a reflection hologram, and a protective layer adjacent to the polymer film. In the first version, the protective layer is in form of an optical wedge, the working surface of which, except the radiation inlet window in the thin part of the wedge, is coated with a reflecting layer. In the second version the filter additionally contains a mirror, placed opposite the reflecting hologram with possibility of varying the angle between the mirror and the hologram. Upon double passage of radiation through the reflecting hologram at different angles of incidence, a narrow spectral peak of the passing radiation is obtained at the output.
 Photopolymer recording media for three-dimensional optical memory for very-large-scale information capacity / 2325680
Invention pertains to organic light sensitive recording media and can be used for making archival three-dimensional holographic optical memory with large scale information capacity. The photopolymer recording medium is described. It consists of solid triplexed polymer films or glass plates and light-sensitive layer between them, including unsaturated compounds, which are capable of ion-radical photopolymerisation; a system providing for photoactivation through radiation in the 400-600nm range and consisting of photochromic compounds and co-initiator. The light sensitive layer contains photochromic compounds with a long mean life of the photo-induced state or thermal irreversible photochromic bonds, and not necessarily, polymer binder, plasticizer and non-polymerisation organic liquid with a large refractive index. There is also proposed usage of such a recording medium in devices for three-dimensional holographic memory of large scale capacity.
 Directing optical signals by means of mobile optical diffraction component / 2256203
Source 70, 72, 74, 76 of optical signals 10 is directed toward mobile optical diffraction component 32. Each optical signal is characterized by its respective wavelength. Mobile optical diffraction component generates output optical signals 92, 94 and distributes them between output devices 88, 90.
 Diffraction display, diffraction device, method for forming of display and method for forming different diffracted beams / 2256202
Device is used for displaying graphic images. One of variants of its realization includes holographic diffraction picture 100, positioned on constant magnet 120 or element connected to it, and coil or wire 160, through which current is let for moving the magnet. Rotation of holographic diffraction picture relatively to axis 10 forms an image using light, diffracting on holographic diffraction grid. Other variant of realization of display includes faceted rotary element, including facets matrix, each of which contains diffraction grid, and drive, meant for rotation of faceted rotary element from idle position to observation position. Rotation of faceted rotary element leads to forming of image by diffracted light.
 The method of recording a holographic diffraction grating in the volume of a photosensitive material (options) / 2199769
The invention relates to optics and can be used to create optical filters
 A method of manufacturing a holographic diffraction gratings / 2165637
The invention relates to holography and can be used for holographic protection of industrial goods and securities, optical instrumentation, laser technology, optoelectronics
 Lens for holographic systems / 2132077
 The holographic lens for glasses (options) / 2128355
The invention relates to optics and, more specifically, to the design of lenses for sunglasses, decorative, advertising or club holographic glasses, the effect of which is provided a holographic image arising from the illumination lenses natural or artificial light
 Method of fabricating spiral long-period fibre lattice / 2426158
Proposed method consists in winding polymer fibre, turn-by-turn, onto optical fibre parison from glass to clip the ends of wound fibre.
 Latticed image and method of obtaining said image / 2422863
Latticed image includes latticed patterns defined by a lattice constant and angular orientation, and/or at least partially includes latticed patterns which form a lustreless pattern. The latticed patterns which contain a latticed drawing, consisting of a plurality of lattice lines arranged in a certain manner and acting on electromagnetic radiation, form a flat region of a half-tone image with constant level of brightness when illuminated.
 Marking articles / 2413962
Article in form of a solid pharmaceutical product which is not in powdered form has a diffraction microstructure formed on its surface which enables its identification and authentication. The solid pharmaceutical product is prepared by pressing powdered or granular material. The pharmaceutical product or its surface is not completely transparent but absorbs and scatters. The method of making the said article involves formation of a diffraction microstructure on the surface of the pharmaceutical product during the pressing step by placing the original negative onto a die mould.
 Method to produce diffraction grating / 2393512
Proposed method consists in preliminary treatment of initial plate in degreasing solution to form grating surface and preset structure elements thereon with the help of photolithography processes, and fixation of preset structure on carrier. Note here that said initial plate is made from molybdenum-rhenium alloy with thickness not over 0.035 mcm. After said preliminary treatment by degreasing solution, it is additionally subjected to treatment by solution of the following composition, wt %: hydrogen nitrate - 35-40, hydrogen dioxide - 30-35, ferric chloride - (111) 10-15, water making the rest. Treatment is effected at room temperature for 0.1-0.2 minutes with subsequent annealing in hydrogen atmosphere at 980-1000°C for 25-30 minutes in mandrel made from molybdenum. Formation of diffraction grating preset structure elements by photolithography processes is performed at other claimed conditions of said processes.
 Multilayer body and method of making multilayer body / 2390808
Method of making a multilayer body (100), which is a protective element with a partially moulded first layer (3 m) and a multilayer body made using the said method are proposed. A diffraction first relief structure (4) is formed in the first region of a replicative layer (3) of the multilayer body such that the first layer (3 m) is deposited on the replicative layer (3) in the first region and in the second region in which the relief structure in the replicative layer (3) is not moulded. A photosensitive layer or a photosensitive wash-up mask as a replicative layer is deposited on the first layer (3 m). The photosensitive layer or the washing mask is exposed through the first layer (3 m) such that the photosensitive layer or washing mask is differently exposed in the first and in the second regions through the first relief structure. The first layer (3 m) is removed using the exposed photosensitive layer or washing mask as a masking layer in the first region, but not in the second region, or in the second region and not in the first region.
 Method for production of difraction grating on sheet material from single crystals of metals, their alloys, semiconductors and device for its realisation / 2389048
Method for production of diffraction grating on sheet material from single crystals of metals, their alloys, semiconductors consists in the fact that solution of crystallised materials salt is applied onto sheet material, sheet material is impregnated with this solution, and this material is exposed to pulses of laser radiation, while interference pattern of lines is created on sheet material. At the same time signal crystals are grown along these lines, and a diffraction grating is produced from their combination. Besides in device that realises this method, diffraction grating is created from signal crystals of metals, their alloys, semiconductors, on sheet material placed into natural medium.
 Device for optical recording diffraction structures / 2377615
Invention relates to optical instrument making, and specifically to making diffraction optical structures and elements. The device for optical recording diffraction structures includes a base plate with an opening in which is fitted a spindle unit with a workpiece, at least two guides, a movable table with at least two sliders, fitted with aerostatic bearings and rigidly connected to each other using a connector assembly, a recording head, a radiation source, a control unit, a reflecting element, a laser interferometre unit, which is connected by a light beam with the reflecting element and radiation source, and electrically connected to the control unit, a linear motor unit, which is electrically connected to the control unit and kinematically connected to the movable table.
 Optical component of safety / 2366986
Optical component of safety for authentication of document or product has plastic transparent film, which has at least one diffraction lattice. Embossed surface is at least partially coated with layer of dielectric material with high index of refraction, which creates effect of colouring into the first colour for the first orientation of component and into the second other colour for orientation that is perpendicular to the first orientation. Layer of dielectric material is coated from the side, which is opposite to direction of surveillance, by layer with low index of refraction, and then by contrast coloured layer having transparent zones and coloured zones, to increase differences of colouring in case of orientation variations.
 Method of diffraction gratings manufacturing by means of magnetic liquid / 2351966
Method of diffraction gratings manufacturing includes application of thin layer of magnetic liquid on substrate and influence with magnetic field on it. Thus for obtaining of hexagonal structure, thin layer of magnetic liquid on substrate is applied in the field of homogeneous constant magnetic field guided perpendicularly the plane of glass plate, forming system of identical drops. For obtaining of band structure use the nonuniform magnetic field guided under an acute angle to the glass plate plane. Magnetic liquid having highly volatile basis is used in the method.
 Optical device of laser resonator (versions) / 2345388
Optical device of the laser resonator consisting of a plate of an optical material with a blanket, executed in the form of a diffraction grating with accents in the form of sequence of dimples or the blanket salients, differing that area Sxy of dimple or salient in the field of a blanket with in co-ordinates X and Y is spotted from expression
 Microlens protective coating with floating image using material with shape memory / 2428730
Protective coating has a layer of polymer material with shape memory, having a surface made of microlenses, where each microlens is associated with one of a plurality of images on the protective coating. The layer of polymer material with shape memory is sensitive to external stimulating effect, for example to temperature, a solvent or moisture, owing to transition from a first state in which the optical property of the microlens has a first value to a second state in which the optical property of the microlens has a second value. The microlenses have refracting surfaces which transmit light to positions in the protective coating, yielding a composite image from images formed on the protective coating when the layer of polymer material with shape memory is in one of a first or second state.
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FIELD: medicine. SUBSTANCE: group of inventions relates to medical equipment, namely, to laser probes and their combinations, applied in ophthalmology. Probe contains irradiating optic fibre for light beam irradiation, optic system, located on the irradiation side of irradiating optic fibre, and two or more receiving optic fibres, located opposite to irradiating optic fibre. Optic system contains diffractive surface. Light beam, irradiated by irradiating optic fibre, is diffracted into two or more diffracted light beams, focused in plane, parallel to diffraction surface. Receiving ends of each of two or more receiving optic fibres, are intended for reception of light beam, diffracted by optic system, are located in plane, parallel to diffraction surface. Another version of implementation is ophthalmologic laser probe, containing irradiating optic fibre and optic system, located on irradiation side of irradiating optic fibre. Optic system is made in the same way as in the previous version. Connection for laser probe contains case, optic system, located in case, first connecting link, located on one side of optic system; and second connecting link, located on the other side of optic system. Optic system contains diffraction surface, each of two or more diffracted light beams is focused in plane, parallel to said surface. EFFECT: application of group of inventions will make it possible to reduce operation time due to probe construction which makes it possible to form multipoint laser beam. 27 cl, 16 dwg
The prior art inventions The invention relates to a laser probe for use in ophthalmic procedures, and more particularly to multi-point laser probe for use in photocoagulation. From the anatomical point of view of the eye is divided into two distinct parts - the front segment and the rear segment. The anterior segment includes the lens and extends from the outer layer of the cornea (corneal endothelium) to the back of the lens capsule. The rear segment includes a segment of the eye behind the lens capsule. The rear segment extends from the anterior hyaloid membrane of the retina, in direct contact, which is the posterior hyaloid membrane of the vitreous body. The rear segment size is considerably larger than the front segment. The rear segment includes the vitreous body is a transparent colourless gel-like substance. It takes approximately two thirds of the eye, determining its shape and form even before birth. It is 1% of collagen and hyaluronate sodium and 99% of the water. The anterior border of the vitreous body is the anterior hyaloid membrane, which is in contact with the posterior capsule of the lens, while the posterior hyaloid membrane forms the rear boundary and is in contact with the net is Oh. Macular degeneration is a disease seen mainly in the elderly, in which the Central part of the inner lining of the eye, known as the area of the macula, is undergoing thinning, atrophy, and in some cases bleeding. This can lead to loss of Central vision, which entails the inability to see small objects to read or recognize faces. According to the American Academy of ophthalmology this is the main cause of loss of Central vision, and today in the United States suffer from this disease are those whose age is more than fifty years. When blood vessels under the retina bleed, it leads to a form of macular degeneration called wet macular degeneration. In some cases, the bleeding can be stopped or slowed down using a procedure known as photocoagulation. Photocoagulation is a technique used by surgeons is the retina for the treatment of some eye diseases, one of which - exudative (wet) form of macular degeneration. In the course of such treatment laser beams directed into the eye, focusing on having the pathology of blood vessels beneath the retina. The laser causes cauterization of blood vessels, seal them and prevent further leakage"that gives hope to prevent the IC further vision loss. Using standard laser probe with a single point of the emitted beam, the surgeon-ophthalmologist usually disables and enables the laser beam is interleaved in "quick" mode, using the foot pedal, as he scans the beam surface of the retina for education on the retina one-dimensional or two-dimensional array of spots cautery formed by laser photocoagulation. Using adenopathy laser probe, covering the desired area of the retina points, which held photocoagulation, can take a long time. Multi-point laser probe can potentially reduce the time required for the formation of the desired set of points cauterization by the laser. However, if you use the laser with reduced radiation power, which is already operating at its maximum capacity, multi-point laser probe may not lead to the reduction of time required for the formation of the desired set of points cauterization by the laser. This is due to the fact that the fixed power P of the laser is split between the N points of penetration of the beam and, thus, the energy at a given point average only P/N. Therefore, to ensure equal cautery exposure time required should be approximately N times greater than the exposure time when using dopuskovogo laser probe. Therefore, not the motrya that you should perform is only 1/N of the desired number of laser burns, performed odnopozova probe, the exposure time, which accounts for one searing beam is N times greater than when using dopuskovogo probe. Thus, the total time of forming the pixel array cautery remains the same. However, currently available new laser for photocoagulation, such as lasers next generation" (NGL) Alcon Laboratories, Inc., the desired beam intensity which is necessary to ensure the ideal point of coagulation, is a small fraction f of the maximum possible intensity of the beam. If the value of f is equal to 1/N, then you can use multipoint laser beam with N the number of emitted beams at a maximum power level of the laser beam, and then the time for the formation of the desired set of points undergoing coagulation, is only 1/N of the time that would be required when using single-point laser probe. This reduces the total time for each operation and allows you to perform more operations in one day, which reduces the overall cost of operation. Thus, it is desirable to have multi-point laser probe to perform photocoagulation. The invention In one embodiment consistent with the principles of the present invention, the present invention is a laser probe, sod is Rashi radiating optical fiber, optical system and two or more receiving optical fibers. Radiating optical fiber emits a beam of laser light. The optical system provides diffraction of a light beam emitted from emitting optical fiber. Each of the receiving optical fiber receives the light beam, dragirovaniya optical system. In another embodiment consistent with the principles of the present invention, the present invention is a connection for the laser probe, which includes a housing, an optical system located in the housing, and two connecting links, one on each side of the optical system. The optical system is diffraction beam of the incident light. In another embodiment consistent with the principles of the present invention, the present invention is an ophthalmic laser probe containing radiating optical fiber and the optical system. The optical system is diffraction of a light beam emitted from emitting optical fiber into two or more diffracted beams of light. It should be understood that both the foregoing General description and the subsequent detailed description are merely exemplary and explanatory and are intended to provide additionally the explanation of the invention in the claims. In the subsequent description as well as in the practical aspect of the invention, described and proposed additional advantages and objectives of the invention. Brief description of drawings The accompanying drawings, which are included in the present description and are part of it, illustrate several embodiments of the invention and together with the description used to explain the principles of the invention. Figure 1 shows a view in cross section of a simple system of forming images with the transition from fiber to fiber in accordance with the principles of the present invention. Figure 2 shows a view in cross section of the image with the transition from fiber to fiber, which uses a lens with a diffraction grating according to the principles of the present invention. Figure 3 shows a view in cross section of the distal end of the laser probe, which includes the handle and attached cannula according to the principles of the present invention. 4 shows diffraction grating, which creates an array of 2×2 spots according to the principles of the present invention. Figure 5 shows a system of imaging that uses a diffraction grating according to the principles of the present invention. On figa and 6B shows respectively a view in sectional side view and a front view of a hybrid multiplex node of the lattice n is the surface lattice/volume hologram. 7 shows a view in cross section side view of the layout of the beams formed hybrid multiplex node array based surface lattice/volume holograms presented on Fig.6. On Fig shows a view in cross section of the connecting structure according to the principles of the present invention. Figure 9 shows a partial view of the laser probe according to the principles of the present invention. Figure 10 shows the connection between the laser probe presented on Fig.9, and the connecting structure provided on Fig. Figure 11 and 12 show views of the face covering, and covered the connecting links, respectively, in accordance with the principles of the present invention. On Fig shows a view in cross section of the laser probe. On Fig shows a view in cross section of the laser probe with a diffraction grating according to the principles of the present invention. On Fig shows the exploded view in cross section of the distal tip of the laser probe presented on Fig. On Fig shows the exploded view in cross section of the distal tip of the laser probe, in which the diffraction grating is endowed with optical power. A detailed description of the preferred embodiments Will be made detailed reference to examples of embodiments of the invention, the examples show the and the accompanying drawings. Where possible, the drawings used a single reference position for the same or similar parts. Figure 1 shows a view in cross section of a simple system of forming images with the transition from fiber to fiber in accordance with the principles of the present invention. In the embodiment represented in figure 1, the system has two fibers 110, 120 and two lenses 130, 140. Fiber 110 emits a divergent light beam, which comes from a laser source (not shown). Diverging beam collyriums lens 130. As you know, the collimated light is light, whose rays are parallel and form a planar wave front. This collimated beam is focused by lens 140 in the spot of a small diameter at the input end surface of the receiving fiber 120. In this case, each of the lenses 130, 140 is a PLANO-convex aspheric lens. In a PLANO-convex aspheric lens one surface is flat and the other surface is convex, with high-precision aspheric surface to focus the light in a spot of minimum diameter. This scheme gives the lowest aberration of the beam and may allow you to get almost perfect diffraction-limited laser spot on the receiving fiber 120. In one embodiment of the present invention, each of the fibers 110, 120 is soboy-micron fiber, NA=0,15. The size of the lenses appropriately dimensioned for exact occurrences in the standard arm ophthalmic instrument with an internal diameter of 0.035 inch, such as manufactures and markets Alcon Laboratories, Inc. Figure 2 shows a view in cross section of the image with the transition from fiber to fiber, which uses a lens with a diffraction grating. In figure 2, the system includes radiant fiber 110, the lens 130, the lens 140 with a diffraction grating 205, and three receiving fiber 220, 230, 240. In the embodiment represented in figure 2, the diffraction grating 205 is located on the flat side of the PLANO-convex lens 140. Such a diffraction grating capable of diffraction of the incident beam with many beams at the output, which focus on the individual spots, as shown in the drawing. In this case, the node 210 lens/grating performs the diffraction of the incident beam and focuses it in two different discrete spot beam. The thickness of the surface elements of the diffraction grating is designed so that approximately one third of the light dirrahiuma in each diffracted spot, and one third of the light remains in the spot of the zero order redirecionado beam. In this case, each of the three receiving fibers 220, 230, 240 carries approximately one third of the laser light from daysago beam. In this arrangement produces multiple laser spots from a single incident laser beam. Diffraction grating 205 at node 210 lens/grating can be designed so as to form a multiple diffracted beam spots, which may be associated with many receiving fibers 220, 230, 240. In one example, the diffraction grating can be made with the possibility of diffraction of the incident beam so that almost 100% of the light directed in dragirovaniya beams (and the zero order beam would be excluded). In General, these gratings can be made with the possibility of the formation of the diffraction diagrams of the location of the beam on one straight line or in a two-dimensional region (as shown in figure 4). Diffraction grating 205 presented in figure 2, can physically direct contact with the lens 140 or may be separated from it. In this case, the diffraction grating can be performed using a polymer or a glass structure, which is separated from the lens. Diffraction grating 205, which is separated from the collecting lens 140 may be located behind the collecting lens 140, between the collecting lens 140 and the collimating lens 130, and the front collimating lens 130. Figure 3 shows the distal end of the laser probe, which includes the handle and attached cannula according to which rincipal of the present invention. Figure 3 node 300 laser probe includes radiant fiber 110, a lens 130, a lens with a diffraction grating 210, three receiving fiber 220, 230, 240, the handle cannula 310 and 320. Each of the three receiving fibers 220, 230, 240 has a curved distal end. These curved ends of the guide dragirovaniya laser spots on different parts, thus forming the layout of the spots. When using the node 300 laser probe for photocoagulation of blood vessels of the retina curved ends of the receiving fibers 220, 230, 240 form the layout of the spots, which can be used for more rapid and effective coagulation of blood vessels. Each time you switch the laser on the retina can be projected many spots, covering a considerable portion of its surface. 4 shows diffraction grating, which creates an array of 2×2 spots according to the principles of the present invention. Figure 4 diffraction grating 410 form 4 spots in two-dimensional region. Each of the four spots coincides with the receiving fiber 420, 430, 440, 450. Using various design solutions for the diffraction grating 410, you can get any number of layouts spots. Figure 5 shows a system of imaging that uses a diffraction grating according to the principles of this is part II of the invention. Figure 5 the system includes radiant fiber 510, two receiving fibers 520, 530, and a diffraction grating 540. Figure 5 refractive lenses were removed and replaced with a diffraction grating 540. In this case, the edge of the grid 540 is required to ensure the angle of refraction of about 17 degrees to the optical system with a magnification of 1:1, NA=0,15). Gratings with surface topography is capable of providing nearly 100% diffraction efficiency at small angles of refraction, however, with increasing angle of refraction of the diffraction efficiency decreases dramatically. In this case, the diffraction grating can be used volumetric hologram. On figa and 6B shows respectively a view in sectional side view and a front view of a hybrid multiplex node diffraction grating-based surface lattice/volume hologram. On figa node 600 grating includes a layer 610 of the grating with surface relief, the adhesive layer 620, the layer 630 dimensional holograms, as well as a glass substrate 640. The node 600 grating has a Central region 615 (diffraction surface of the grating) and the peripheral region 625 (of diffraction volume hologram). The node 600 lattice, in General, has a round shape, as shown in figv. Peripheral region 625 (of diffraction volume hologram) implements a three-dimensional hologram. If the volume on which ogramme diffraction grating is within the volume of the material of the hologram. The volume hologram has a medium to low diffraction efficiency for small angles of refraction (for example, less than 10 degrees) and potentially 100% diffraction efficiency for increased angles of refraction (e.g., greater than 10 degrees). Thus, the diffraction node 600 effectively provides diffraction using Central region 615 (diffraction surface of the grating) for small angles of refraction. The node 600 also effectively provides diffraction for increased angles of refraction using peripheral region 625 (of diffraction volume hologram). The use of such node 600 can provide nearly 100% diffraction efficiency in a limited volume that is enclosed in the handle of the probe. An example of the shape of the beam for the node 600 is shown in Fig.7. On Fig-10 shows the design of the connection of the fibers according to the principles of the present invention. On Fig shows the connection. The optical system is located in the housing 830, which connects the laser console with available laser probe. On Fig optical system (in this case, the lens 130 and the lens with a diffraction grating 210, although you may be used and other optical elements) located in the housing 830. Covered link 810 is located at one end of the building is sa 830, and covering the connecting link 820 is located at the other end of the housing 830. In one embodiment, the connecting links are standard connecting links SMA, however, can be used and other connecting links. Figure 9 shows a partial view of the laser probe according to the principles of the present invention. The available multi-point laser probe includes a covered link 910, shell 920, which carries one or more optical fibers, arm 930 and the cannula 940, which ends three optical fibers 220, 230, 240 (each of which has a curved end). Figure 10 shows the connection between the laser probe presented on Fig.9, and the connecting structure provided on Fig. Figure 10 covered with the connecting link 910 is engaged with covering a connecting link 820, attaching, thus, the laser probe to the laser generator. The optical system contained in a housing 830, provides diffraction of the incident beam, transforming into many beams passing through the optical fibers 220, 230, 240. Figure 11 and 12 show views of the end construction of the connecting links in accordance with the principles of the present invention. Figure 11 shows end view covering connective C is s, and Fig - end view of the covered bridge. Spring-loaded ball 1110 engages in a groove 1210 and provides axial alignment of the optical fibers (shown as circles of small diameter) in the desired position. Other mechanical elements for alignment, such as grooves and mating protrusions can also be used for coaxial alignment of the optical fibers in the desired position. On Fig shows a view in cross section of the laser probe. On Fig laser probe has a shell 1310 from polyvinyl chloride (PVC), arm 1320, optical fiber 1330, and the cannula 1340. The laser beam is emitted from the distal end of the fiber 1330. On Fig shows a view in cross section of the laser probe with a diffraction grating according to the principles of the present invention. On Fig diffraction grating 1410 planted at the end of the cannula 1340. Optical fiber 1330 ends inside the cannula before 1340 diffraction grating 1340. Thus, the laser beam emitted from the optical fiber 130, passes through the diffraction grating 1410. As discussed earlier, the diffraction grating 1410 creates many diffracted beam spots. On Fig shows two diffracted beam, but in other embodiments, implementation of the present invention by passing the incident beam through a diffraction grating can be formed by rosolino the number of diffracted beams. In various embodiments of the present invention can be used for surface diffraction grating, a volume hologram or a combination thereof, as discussed above. In other embodiments, implementation of the diffraction grating 1410 may be configured to create different layouts spots, as discussed earlier. On Fig shows the exploded view in cross section of the distal tip of the laser probe presented on Fig. In this drawing more clearly shows the arrangement of components and the beam trajectory. Fig also includes a centering cylinder 1510, made with the possibility of alignment of the optical fiber 1330 in the cannula 1340. The distal end of the optical fiber 1330 is located at a distance from the diffraction grating 1410 so that the beam emitted from the optical fiber 1330, could expand and fill the diffraction grating 1410, as shown. Diffraction grating 1410 performs diffraction beam in many directions, so that in the plane of the emitting fiber is a set of virtual images. On Fig shows the exploded view in cross section of the distal tip of the laser probe, where the diffraction grating is endowed with optical power. Diffraction grating 1610 is configured to focus the diffracted beams. For example, diffraction the second grating can be made with the possibility of radiation multiple collimated diffracted beams. Collimated dragirovaniya beams lead to the formation of circuits with more concentrated location of the spots on the retina. In other embodiments, implementation of the diffraction grating 1610 is executed with a possibility of formation of converging diffracted beams. From the foregoing it can be understood that the present invention provides an improved system for photocoagulation of the retina. Using a diffraction grating or a node, only the incident laser beam can be dimagiba education schemes spots suitable for photocoagulation of blood vessels of the retina. The present invention is shown here as example, and the average expert in the art can make various changes. Other embodiments of the invention will become obvious to a person skilled in the art from consideration of the description and practical aspect of the invention presented here. It is assumed that the description and examples should be considered only as illustrative, the true nature and scope of the invention are defined by the subsequent claims. 1. Laser probe containing: 2. The laser probe of claim 1, wherein the optical system further comprises: 3. Laser probe according to claim 2, in which the first lens is an aspheric lens and the second lens is an aspheric lens with a diffractive surface. 4. Laser probe according to claim 1, which which the optical system is arranged to dragirovaniya light beam, the emitted radiant optical fiber, with the formation of a two-dimensional array of beam spots. 5. The laser probe of claim 1, wherein the optical system includes a diffraction grating. 6. The laser probe of claim 1, wherein the optical system includes a hybrid multiplex node of the diffraction grating on the surface of the diffraction grating and/or a volume hologram. 7. Laser probe according to claim 6, in which the grid nodes further comprises: 8. Laser probe according to claim 1, in which at least one of the two or more receiving optical fibers has a curved distal end. 9. Laser probe according to claim 1, in which two or more receiving optical fibers are arranged such that each of the two or more receiving optical fibers is associated with a single light beam, diregiovani optical system. 10. Laser probe according to claim 1, additionally containing: 11. Connection for the laser probe, containing: 12. Connection by claim 11, in which the optical system further comprises: 13. The connection section 12, in which the first lens is an aspheric lens and the second lens is an aspheric lens with a diffractive surface. 14. Connection by claim 11, in which the optical system is arranged to dragirovaniya light beam emitted from emitting optical fiber, with the formation of a two-dimensional array of beam spots. 15. Connection by claim 11, in which the optical system includes a diffraction grating. 16. Connection by claim 11, in which the optical system includes a hybrid multiplex node of the diffraction grating on the surface of the diffraction grating and/or a volume hologram. 17. The connection clause 16, in which the grid nodes further comprises: 18. Connection by claim 11, in which the first and second connecting links are connecting links SMA. 19. Connection by claim 11, in which at least one of the first and second connectors includes a mechanism for alignment of the optical fibers. 20. Ophthalmic laser probe containing: 21. Laser probe according to claim 20, in which the optical system includes a diffraction grating. 22. Laser probe according to claim 20, in which the optical system includes a hybrid multiplex node of the diffraction grating on the surface of the diffraction grating and/or a volume hologram. 23. Laser probe according to article 22, in which the grid nodes further comprises: 24. Laser probe according to claim 20, in which the optical system includes a diffraction grating made with the possibility of what callmerobbie. 25. Laser probe according to claim 20, further comprising: 26. Laser probe according to claim 20, further comprising: 27. Laser probe according to claim 20, which further comprises:
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