512results about "Bundled fibre light guide" patented technology

The invention discloses an optical fiber transmission image recovery method and device based on a complex amplitude regulation metasurface diffraction device, and the method comprises the steps: obtaining the complex amplitude distribution of each diffraction layer through the training of a diffraction neural network, designing a corresponding metasurface array, and preparing a cascaded metasurface diffraction device with a complex amplitude regulation function, deploying a cascade metasurface diffraction device to the far end of the multimode optical fiber and performing complex amplitude modulation on emergent circularly polarized light to realize high-resolution or high-sampling-rate image recovery; or an optical fiber transmission inverse matrix is solved by using an analytical method, and a corresponding metasurface array is designed, so that the single-layer metasurface diffraction device with a complex amplitude regulation and control function is prepared; and deploying the single-layer metasurface diffraction device to the far end of the few-mode optical fiber and carrying out complex amplitude modulation on emergent circularly polarized light to realize low-resolution or low-sampling-rate image recovery. Miniaturization of a multimode optical fiber imaging system can be realized, and the image recovery quality is effectively improved based on complex amplitude modulation of the metasurface diffraction device.

A fiber-optic light guide is provided. The light guide includes plurality of optical fibers and an enveloping material. The plurality of optical fibers define a flexible fiber bundle. The flexible fiber bundle has a first diameter and a length along a longitudinal axis. The enveloping material encloses the plurality of optical fibers at one end of the flexible fiber bundle and over at least a part of the length to define a rigid portion. The plurality of optical fibers in the rigid portion are fused with one another. The flexible fiber bundle has a modified or formed cross-sectional geometry in a region of the enveloping material.

The invention discloses a windable optical cable belt and a manufacturing method thereof, and the manufacturing method comprises the steps: distributing a plurality of parallel optical fibers in the same plane, so as to form an optical cable belt; a dispensing valve is adopted to carry out dispensing and bonding on the two adjacent optical fibers, intermittent dispensing is carried out in the first direction at a first preset interval so as to form bonding parts, and the two adjacent bonding parts of the optical cable belt in the second direction are distributed at a second preset interval in the first direction; and curing the bonding part of the optical cable tape, so that the upper surface of the cured bonding part is sunken downwards, and the lower surface of the cured bonding part is sunken upwards. According to the optical fiber manufacturing method, the adjacent optical fibers are bonded in a manner of carrying out interval dispensing at the first preset interval in the first direction, and the adjacent bonding parts in the second direction have the second preset interval in the first direction, so that compared with an existing optical fiber dipping method, the method has the advantages that the crimpability of an optical cable belt can be effectively improved; and the glue consumption can be reduced.

The utility model discloses a tool for assembling an optical fiber array by an optical fiber connector, which comprises a base provided with a mounting groove group and a clamping groove, the mounting groove group and the clamping groove are arranged in one-to-one correspondence, the mounting groove group comprises a plurality of mounting grooves, the plurality of mounting grooves are distributed at intervals along the length extension direction of the base, and the mounting grooves are used for mounting the optical fiber array. The clamping grooves are used for installing optical fiber connectors. A plurality of different optical fiber arrays can be conveniently mounted in the mounting groove group through the arranged mounting groove group; the optical fiber connector can be conveniently embedded in the clamping groove to prevent shaking; an adjusting window is arranged on the base to be matched with the mounting groove group and the clamping groove to adjust the optical fiber array and the optical fiber connector simultaneously.

To provide an optical fiber which can prevent an increase in size of the optical fiber which can transmit an image or light, which can expand a visual field or an irradiation range, and which can maintain an insertion property into a curved part of a lumen.SOLUTION: An optical fiber 100 of the present invention includes a body 110 and a tip end part 120. The tip end part 120 is curved in advance with respect to the body 110. For example, the curve angle K1 is set such that a region along an axial core Ax1 of the body 110 is included in a light receiving or irradiation range Vr with an axial core Ax2 of the tip end part 120 as a center thereof.SELECTED DRAWING: Figure 1

The utility model discloses a light-emitting decorative cloth and a light-emitting decorative device, the light-emitting decorative cloth comprises a basic fabric and a light-emitting unit, the light-emitting unit comprises at least one optical fiber, the optical fiber comprises a weaving section woven in the basic fabric, the weaving section comprises a stacking part and a smooth part, and the stacking part and the smooth part are arranged in the basic fabric. And the brightness of the stacking part is greater than that of the smooth part. The decorative cloth can display different patterns through the special structure of the optical fibers, and the visual effect is improved.

The invention relates to an adjustable optical fiber array unit based on piezoelectric ceramic displacement control, and the unit comprises a coupling clamp which is used for fixing an optical fiber array; the plurality of piezoelectric ceramic actuators are connected with the coupling clamp and are used for controlling six degrees of freedom of the coupling clamp; according to the invention, the plurality of piezoelectric ceramic actuators are used for controlling the movement of the coupling clamp in each degree of freedom, so that the position of the coupling clamp can be accurately controlled. Compared with an existing optical fiber array unit which cannot be finely adjusted, the coupling difficulty is greatly reduced, automatic coupling is facilitated, and therefore working hours and cost are greatly saved; in the long-term application process, if the position of the fixed optical fiber array unit drifts due to stress release and the like, the optical fiber array unit can be recoupled to the maximum power by adjusting the corresponding piezoelectric ceramic actuator, so that the long-term reliability is greatly improved.

The invention relates to a micro-convex structure optical fiber image transmission array and a preparation method and application thereof. The method comprises the following steps: drawing a core material glass rod and a skin material glass tube into a primary monofilament; drawing the black absorption glass rod into a light absorption glass gap wire; drawing the skin glass rod into a skin glass gap wire; performing hexagonal densest arrangement on the primary monofilaments, sequentially inserting light absorption glass gap filaments and skin glass gap filaments into gaps of the primary monofilaments to obtain a primary composite rod, and drawing the primary composite rod into primary multifilaments; arranging the primary multifilaments in a hexagonal densest manner to form a secondary composite rod, and drawing the secondary composite rod into secondary multifilaments; performing hexagonal densest arrangement on the secondary multifilaments, performing fixed-length cutting, arranging the secondary multifilaments into plate sections, and performing hot melt pressing on the plate sections to form molten fiber rods; post-processing the fused fiber rod into an optical fiber image transmitting array; and carrying out ion beam etching on the optical fiber image transmission array in vacuum. According to the method, the convex structure on the surface of the output end of the optical fiber image transmitting array is prepared by using an ion beam bombardment etching process, and the uniformity of surface etching processing of the convex structure is improved.

A coherent fiber optic bundle breakout cable assembly includes a trunk fiber bundle having a plurality of optical fibers in a close-packed 2D array at a trunk connector end face, and multiple breakout bundles emanating from the trunk fiber bundle and each including a group of optical fibers in a close-packed 2D array at a breakout connector end face, with optical fibers being in lateral contact with one another. Bonding material is arranged in interstitial spaces of optical fibers near ends of each breakout bundle. A method for fabricating such an assembly includes holding the plurality of optical fibers within an elastomeric fixture, dicing the plurality of fibers to provide diced ends thereof, selectively applying and curing bonding material in interstitial spaces between optical fibers proximate to the diced ends according to a bundle-forming pattern, separating groups of optical fibers into breakout bundles, and retaining each breakout bundle in a corresponding breakout bundle ferrule aperture of one or more breakout bundle ferrules.

An optical fiber cable comprises a sensing fiber and a hollow-core fiber (HCF). Communication signals are propagated through the HCF. The sensing fiber permits detection of a potential fault or potential damage to the optical fiber cable.

The invention relates to thermal expansion-balanced transverse Anderson localization optical waveguides that have reduced bowing. The optical waveguide is formed of a fiber bundle comprising at least two distinct structural elements. The low curvature of the waveguide is achieved by a net CTE modulus being close to zero, which is achieved by relocating some of the structural elements of the fiber bundle to a different quadrant of the waveguide cross-section.

The application discloses a novel combined ferrule fiber array and a method and a core adjusting dispensing tool thereof, and the fiber array comprises a fiber, a bottom plate, a cover plate, ceramic ferrules and fixing glue; the ceramic ferrule is a cylindrical ferrule with a center hole in the middle, and the outer diameter tolerance is set as ±0.5μm; the number of the ceramic ferrules is consistent with that of the fibers; the ceramic ferrules are sequentially and closely connected in an array and arranged between the bottom plate and the cover plate; the bottom plate, the ceramic ferrule group and the cover plate are fixed by using the fixing glue; the center hole diameter is matched with the outer diameter of the fiber with the coating layer stripped; the fiber with the coating layer stripped is inserted into the ceramic ferrule one by one, and the novel ferrule fiber array is formed. The high-precision ceramic ferrules are closely arranged on the bottom plate for assembly and fixation, the spacing error of the fibers is small, the precision is high, the number of channels of the fiber array can be flexibly adjusted, the part structure is simple, the assembly is simple by using the core adjusting dispensing tool, and the reliability and stability of the fiber array product are improved.

The disclosure relates to waveguides for transmitting electromagnetic waves, for example image guides for transmitting image information, and to methods of manufacturing waveguides, which operate using transverse Anderson localization and may have an optically active material for improved contrast.

In an optical combiner, deformation in the cross section of a predetermined first optical fiber is reduced more than in conventional optical combiners. The optical combiner (10) includes: an optical fiber bundle (11) formed by a plurality of first optical fibers (111 to 117); and a second optical fiber (12) having a diameter equal to or larger than the diameter of the optical fiber bundle (11). The plurality of first optical fibers (111 to 117) include a predetermined first optical fiber (117) and the other first optical fibers (111 to 116), the predetermined first optical fiber (117) being composed of one or more materials having higher softening temperatures than one or more materials for the other first optical fibers (111 to 116).

A multi-core fiber includes a cladding, cores extending in an extending direction inside the cladding, a marker inside the cladding, and an end surface inclined in an inclined direction that is not orthogonal to the extending direction. The cores at the end surface are line-symmetrically arranged with respect to a virtual axis orthogonal to the inclination direction. The virtual axis virtually divides the end surface into a first area and a second area. The cores include a first core disposed farthest from the virtual axis in the first area and a second core disposed farthest from the virtual axis in the second area. A center of the marker at the end surface is disposed in an area between a straight line, passing through the first core, parallel to the virtual axis and a straight line, passing through the second core, parallel to the virtual axis.

The application discloses a manufacturing process of a quartz optical fiber image transmission bundle, which comprises a threading plate and a straight line chuck, a plurality of threading holes are formed on the surface of the threading plate, the plurality of threading holes are arranged in a honeycomb shape, a quartz optical fiber is first perforated to form a threading-out section; glue is dropped on the threading-out section to obtain a first shaped clamping end; the optical fiber is pulled out in parallel until a required length is reached to obtain an optical fiber arrangement bundle, then glue is again dropped on the optical fiber on the back side of the threading plate, and a second shaped clamping end is obtained after solidification; the second shaped clamping end is cut to obtain an optical fiber arrangement section with a third shaped clamping end, and the optical fiber arrangement section is immersed in sulfuric acid to remove the coating layer on the surface of the optical fiber; then the first shaped clamping end and the third shaped clamping end are twisted and glue is dropped, the first shaped clamping end and the third shaped clamping end are cut off after solidification, and the finished product is obtained after grinding and polishing. The application breaks through the blockade of the prior art to prepare the quartz optical fiber bundle, has low cost and is easy to produce.

The utility model relates to the technical field of optical fiber array assembling equipment, and discloses an efficient optical fiber array assembling machine which comprises a workbench, a material carrying frame, a material carrying mechanism, a fiber penetrating assembling mechanism, a dispensing mechanism, a bottom image acquisition mechanism, a bottom plate and a cover plate, the material carrying frame is arranged at the top of the workbench, the material carrying mechanism is arranged on the front side of the material carrying frame, and the fiber penetrating assembling mechanism is arranged on the bottom plate. The fiber penetrating assembly mechanism, the dispensing mechanism and the bottom image acquisition mechanism are arranged at the top of the workbench and located on the front side of the carrying frame, and a feeding mechanism located on the left side of the fiber penetrating assembly mechanism is arranged at the top of the workbench. According to the efficient optical fiber array assembling machine, rapid and continuous feeding of the bottom plate and the cover plate can be achieved without shutdown, smooth proceeding of the production process is guaranteed, time waste caused by material replacement due to shutdown is reduced, manual operation is reduced, the continuous operation capacity and the machining efficiency of equipment are remarkably improved, and the production cost is reduced. And the use of a user is facilitated.

The present application relates to a capillary array, its manufacturing method, and use. The capillary array includes a plurality of parallel-axially arranged capillaries made of a first glass, each of which has an inner wall provided with a low-refractive-index layer whose refractive index is lower than that of a liquid scintillator, and a light-absorbing layer made of a second glass between any two adjacent capillaries. The capillary array includes a capillary region in which T1 - T2 is 30 to 50°C, where T1 is the softening point of the first glass and T2 is the softening point of the second glass, and the thermal expansion coefficient of the first glass is α1. The capillary region is made of a third glass, which is disposed outside the capillary region and in contact with the outer surface of the capillary region, and has a softening point of T3, where T2 - T3 is 50 to 100°C, and the thermal expansion coefficient of the third glass is α3, where α1 - α3 is 2×10. -7 ~10×10 -7 / °C. The technical problem to be solved by the present application is to manufacture a capillary array such that a liquid scintillator optical fiber panel manufactured using the capillary array has high spatial resolution, high hole diameter uniformity, high numerical aperture, and high coupling efficiency, and the manufacturing process is simple.

The invention relates to the technical field of optical fiber communication, and discloses a high-precision optical fiber array, an optical communication module and a processing method, the high-precision optical fiber array comprises N optical fibers, a substrate and a cover plate, the substrate is provided with N accommodating grooves, the optical fibers are at least partially arranged in the accommodating grooves, the cover plate covers the N accommodating grooves, and the optical fibers and the cover plate are fixed through laser welding. According to the design, before the N optical fibers and the substrate are assembled, the N optical fibers can be fixed on the cover plate through a laser welding process by adopting the positioning tool with the high-precision V-shaped groove in advance, so that the optical fiber array does not depend on the processing precision of the accommodating groove on the substrate in the assembling process, the manufacturing precision of the optical fiber array is improved, and the manufacturing cost is reduced. And moreover, the accommodating groove on the substrate is not limited to a V-shaped groove any more and can be expanded to a U-shaped groove, a square groove or a circular groove and other groove-shaped structures, so that the Pitch precision and consistency of the optical fiber array are improved.

The application discloses a method for using a fiber array pre-assembly tool, a first positioning block is placed on a mounting seat with a lifting pressing needle, and a side of the first positioning block abuts against a side wall of a stop table; a slide needle is slid until it abuts against the first positioning block; a first fiber array is installed in a mounting groove; a second positioning block is placed above the first positioning block; a second fiber array is installed in a buckle groove; a clamping jaw cylinder is aggregated to make two clamping blocks clamp the second positioning block; the front end faces of the coplanar first positioning block, the second positioning block, the first fiber array and the second fiber array are all arranged in the same plane; the pressing needle is fixed, and the adjusting pin is loosened; a visual detection device is finely adjusted to be the same height as the first positioning block; the visual detection device is turned on; a visual signal transmitted by the visual detection device is observed; a micrometer knob assembly is adjusted to make the first fiber array and the second fiber array reach a predetermined position.

The utility model provides an image transmission optical fiber self-adaptive structure and an endoscope image transmission system. The image transmission optical fiber self-adaptive structure comprises a fixed seat, a butt joint structure and a limiting part, the butt joint structure is connected with the fixing seat through an elastic piece, the butt joint structure is provided with a butt joint space used for butt joint of the first optical fiber insertion core and the second optical fiber insertion core, the first optical fiber insertion core is arranged in the butt joint space, and the second optical fiber insertion core is constructed to be at least partially inserted into the butt joint space in the first direction so as to be in butt joint with the first optical fiber insertion core; the butt joint structure is further provided with a limiting matching wall, and the limiting piece abuts against the limiting matching wall to limit the butt joint structure to move in the first direction. According to the utility model, even if the insertion angle deviation or the assembly error exists, the second optical fiber insertion core can still realize accurate butt joint with the first optical fiber insertion core in the butt joint space along the first direction through the synergistic effect of the limiting piece and the elastic piece, so that the self-adaptive elastic force of the elastic piece is ensured; therefore, high-quality transmission of image data can be realized with stable optical power.

This invention belongs to the field of glass technology and relates to a high-temperature resistant structural glass material, its preparation method, and its applications. The glass is composed of the following components by mass percentage: 60%-70% silicon dioxide, 5.5%-11% boric acid, 0.1%-5% aluminum hydroxide, 0%-3% potassium nitrate, 5.5%-13% potassium carbonate, 0%-12% sodium carbonate, 0.1%-4% calcium carbonate, 0%-2% calcium fluoride, 0%-1% lithium carbonate, 0%-2% basic magnesium carbonate, 0.1%-1% titanium dioxide, 0%-2% zirconium dioxide, and 0%-1% cerium dioxide; the total mass percentage of potassium nitrate, potassium carbonate, sodium carbonate, and lithium carbonate does not exceed 22%. This structural glass possesses a high softening temperature, a suitable coefficient of thermal expansion, high-temperature resistance, thermal shock resistance, and processing performance, making it suitable as a structural material for optoelectronic devices.

The invention relates to an optical fiber close-packed structure, a radar transmitting and receiving device and a laser radar system, which are applied to a laser radar, the optical fiber close-packed structure comprises two substrates which are stacked up and down, and the opposite surfaces of the two substrates form an accommodating space; a V-shaped groove is formed in at least one side wall surface of the accommodating space, the V-shaped groove is used for placing coupling optical fibers, the adjacent coupling optical fibers form an optical fiber group, and the transverse distance between the adjacent coupling optical fibers in the optical fiber group is smaller than or equal to the diameter of a fiber core; at least two optical fiber groups are arranged in the accommodating space, a distance exists between different optical fiber groups, and each optical fiber group forms a detection range. According to the invention, each optical fiber group has small vertical angle resolution, the light-emitting angle density of the laser radar is increased, the plurality of optical fiber groups respectively form a detection range, each detection range corresponds to a light-sensitive surface of one receiving detector, the number of the receiving detectors is reduced, and the design cost is reduced.

The invention relates to an infrared image system having a lens for generating an image of a motif having at least two different temperatures T1 and T2, an image guide associated with the lens at a distal end for image transfer and a detector unit for image capture. The detector unit is associated with a proximal end of the image guide and the ratio of the shared thermal resolution (NETD) of the image guide and the detector unit to the thermal resolution (NETD) of the detector unit is less than 10, preferably less than 5, particularly preferably less than 2.

The present invention discloses a lens for fiber optic lighting equipment and the fiber optic lighting equipment having the lens. When using optical fibers for lighting, the lens allows light to be evenly and completely concentrated on the optical fibers to minimize brightness differences of each optical fiber, thereby improving the quality of lighting through the optical fibers.

The present invention provides a method for manufacturing a glass filament that generates less broken yarn when stretched into a glass fiber, and a method for manufacturing a glass yarn that generates less broken yarn and fuzz when twisted, and has less quality deviation at the start and end of winding. The method for manufacturing a glass filament includes: (1) a stretching step in which a raw yarn formed from a glass composition containing 90% or more of SiO2 by mass is stretched into a glass fiber under conditions in which the melting temperature is 1,500 to 3,500°C and the tension is 0.1 to 1.0 cN per root; and (2) a bundling step in which 30 to 400 of the glass fibers obtained in the stretching step are bundled to manufacture a glass filament.

To provide a unit equipped with an illumination light guide or an image guide for a single-use endoscope which enables high transmittance and high color reproduction fidelity.SOLUTION: Provided is an illumination device including at least one illumination light guide 30 and / or an image guide for transmitting electromagnetic radiation, wherein the illumination light guide or the image guide has a proximal end face for incidence or emission of the electromagnetic radiation and a distal end face for emission or incidence of the electromagnetic radiation. The proximal end face and / or the distal end face consist at least partially or in some sections of a transparent plastic part or are integrally formed thereon from a transparent plastic, wherein the transparent plastic is biocompatible and / or does not have cytotoxic properties for human or animal cell structures for an action time of less than one day. A unit which can be produced at low cost can thus be realized, in particular for a single-use endoscope 1.SELECTED DRAWING: Figure 1