42results about "Bundled fibre light guide" patented technology

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 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.

A method for producing a glass strand, the method including: (1) a drawing step of drawing raw filaments composed of a glass composition containing SiO2 in a compositional amount of 90% by mass or more into glass fibers under conditions of a melting temperature of 1,500 to 3,500° C. and a tension of 0.1 to 1.0 cN per filament; and (2) a bundling step of bundling 30 to 400 of the glass fibers obtained in the drawing step to produce a glass strand. This can provide a method for producing a glass strand in which the occurrence of thread breakage during drawing into glass fibers is reduced, and a method for producing a glass yarn in which the occurrence of thread breakage or fuzzing during thread twisting is reduced and a variation in quality is small between the beginning part and end part of winding in a long-length glass yarn.

This invention relates to the field of optical fiber imaging and the preparation of its glass materials, and particularly to a high-temperature resistant, low-refractive-index skin glass material, its preparation method, and its application in optical fiber panels. It comprises, by molar parts, the following ions: 50-70 parts Si. 4+ 4 to 14.5 parts of Al 3+ 16-25 parts of alkali metal cations (selected from Na) + and K + ), 6-13 portions of B 3+ 0.1 to 3 parts of alkaline earth metal cations (selected from Ca) 2+ and Mg 2+ At least one of the following), 0.1 to 1 part of Ce 4+ 0.1 to 3 parts of F ‑ And 0.5 to 1 part Zr 4+ Among them, Si 4+ Al 3+ and B 3+ The total molar fraction is 70-82 parts. The glass material provided by this invention can balance the compatibility of low refractive index with coefficient of thermal expansion and softening temperature, has a high viscosity matching degree with high refractive index core glass, and has good anti-crystallization performance and high temperature resistance.

The present application relates to a capillary array and a preparation method and application therefor. The capillary array includes: a capillary region, including a plurality of capillaries of a first glass, which are disposed in an axis-parallel manner, wherein a low refractive index layer is disposed on an inner wall of each of the capillaries, and a refractive index of each low refractive index layer is less than a refractive index of a liquid scintillator; a light absorption layer of a second glass material is disposed between any two adjacent capillaries; a softening point of the first glass is T1, a softening point of second glass is T2, and a value of T1 minus T2 is in a range from 30°C to 50°C; and a thermal expansion coefficient of the first glass is α1; and an edge covering region, disposed on an outer side of the capillary region and making contact with an outer side face of the capillary region, wherein a material of the edge covering region is a third glass, a softening point of the third glass is T3, and a value of T2 minus T3 is in a range from 50°C to 100°C; and a thermal expansion coefficient of the third glass is α3, and a value of α1 minus α3 is in a range from 2×10-7 / °C to 10×10-7 / °C. The technical problem to be solved by the present application is how to prepare a capillary array that enables a liquid scintillator fiber optical panel made of the capillary array to have a high spatial resolution, high aperture uniformity, a high numerical aperture, high coupling efficiency, and a simple preparation process.

Provided is an optical combiner that can easily perform fusion processing of an input-side optical member and an output-side optical member. An optical combiner (40) includes an optical output portion (130) having a connection end surface (135) to which an optical input portion (110, 120) having a core (11, 21) is connected. The optical output portion (130) includes: a core (31, 33) that propagates light; and an outer cladding layer (34) that is located outside the core (33). The optical input portion (110, 120) is connected to the connection end surface (135) of the optical output portion (130) in such a manner that the core (11, 21) is optically coupled to the core (31, 33) of the optical output portion (130). An outer diameter (D1) of the outer cladding layer (34) on the connection end surface (135) of the optical output portion (130) is smaller than a diameter of a minimum containing circle (C1) of a cladding layer (22) of the optical input portion (120) that contains all of the optical input portion (120) on the connection end surface (135) of the optical output portion (130).

A multi-beam system includes a light source configured to emit light; a fiber bundle connected to the light source; and a camera configured to capture an image set including images corresponding to each fiber connected to the light source. The fiber bundle includes a central fiber having one end connected to the light source, and N layers of fibers surrounding the central fiber. The first layer of fibers includes M fibers, each having one end connected to the light source, and the Nth layer of fibers includes more than M fibers, but only M fibers in the Nth layer of fibers have one end connected the light source. A processor is configured to determine a centroid of each image in the image set to produce a centroid map and generate a fiber location map comprising fiber locations of all fibers in the fiber bundle based on the centroid map.

A receptacle for a plurality of light-guiding fibres is provided. The receptacle has a glass part with a first end face, a second end face, a plurality of rectilinear channels extending between the first and second end faces, and a lateral surface between the first and second end faces along a longitudinal direction. The glass part has a length defined between the first and second end faces where the length is greater than a largest transverse dimension of the glass part. The rectilinear channels are open at the first end face and / or the second end face so that the light-guiding fibres are receivable therein, respectively. The rectilinear channels have a channel length that is greater than a channel transverse dimension. The lateral surface has a parting surface thereon.

In the fiber bundle (200), each of the plurality of optical fibers (40) includes: a first diameter portion (43); a second diameter portion (44) having a diameter larger than that of the first diameter portion (43); and a third diameter portion (46) having a diameter larger than that of the second diameter portion (44) and including a covering portion. The resin portion (70) includes: a first resin portion (71) connecting the first diameter portion (43) and the second diameter portion (44) to the inner surface (51a) of the first optical fiber receiving portion (51); a second resin portion (72) connecting the third diameter portion (46) to the inner surface (61a) of the second optical fiber receiving portion (61); and a third resin portion (73) bonded to the second diameter portion (44) and connecting the first resin portion (71) and the second resin portion (72). The third resin portion (73) is spaced apart from the inner surface (61a) of the second optical fiber receiving portion (61).

Some implementations of the disclosure describe an imaging system comprising: a camera including multiple image sensors that are spaced apart, each of the image sensors to capture an image of a respective sample location of multiple sample locations of a sample; and a fiber bundle comprising multiple fiber cores, each of the fiber cores to emit a light beam that is projected on a respective one of the sample locations.

The present disclosure provides an optical fiber bundle including a core element having a first hardness, a first optical fiber helically stranded about the core element, the first optical fiber having a second hardness less than the first hardness, and a second optical fiber helically stranded about the core element. The core element is configured to deform into a compressed state in response to axial or compressive force acting on the optical fiber bundle to provide strain relief to the first and second optical fibers. The core element may include a metallic wire having a soft polymer coating, twisted yarn, yarn laid parallel around a wire with polymer coating, or a monofilament of polymeric material. The optical fiber bundle may further include filler material surrounding the optical fibers and filling interstitial spaces.

The invention relates to flexible optical waveguides for transmitting electromagnetic waves, in particular for transmitting image information, and to methods of manufacturing flexible optical waveguides.

The present invention provides a method for manufacturing glass strands that exhibit less breakage when stretched into glass fibers, and a method for manufacturing glass yarn that exhibits less breakage and fuzzing when twisted, and has less variation in quality between the beginning and end of the winding in long lengths of glass yarn. [Solution] A method for manufacturing glass strands, (1) A stretching step in which a filament made of a glass composition containing 90% by mass or more of SiO2 is stretched into glass fibers at a melting temperature of 1,500 to 3,500°C and under conditions of tension of 0.1 to 1.0 cN / strand, (2) A bundling process in which the glass fibers obtained in the stretching process are bundled into 30 to 400 strands to produce glass strands. A method for producing glass strands, characterized by including the following:

The application discloses a low-stress fiber loop design method based on finite element simulation and belongs to the technical field of computer-aided design. The low-stress fiber loop design method of the application is aimed at the jump-turn transition area of an octupole symmetrical winding method fiber loop, constructs a jump-turn geometric model containing cross-layer jump-turn optical fibers and regular layer winding optical fibers, establishes a local Cartesian coordinate system and adopts a sweeping method to perform structured grid division, applies a fixed constraint to the regular layer winding optical fibers, applies tension and opposite displacement loads to the cross-layer jump-turn optical fibers to simulate jump-turn deformation, considers the nonlinear mechanical behavior of the optical fibers, solves equivalent stress distribution by adopting a nonlinear finite element algorithm, obtains an optimal transition path based on the equivalent stress distribution fitting, and adjusts the jump-turn angle and wrapping buffer materials. The application can truly restore the local stress state under the jump-turn scene, effectively reduces the stress concentration of the jump-turn transition area, and improves the design reliability and mechanical stability of the fiber loop.

The application provides a kind of optical fiber array imaging sensor and liquid level measurement method for liquid level monitoring, the sensor includes optical fiber bundle and sensing array, isolated window structure and sensing signal demodulation unit, optical fiber bundle and sensing array are made into compact array by multiple optical fibers, for transmitting optical signal and forming corresponding bright and dark reflection light distribution with liquid level, isolated window structure is optically coupled to one end of optical fiber bundle of optical fiber bundle and sensing array, isolated window structure is made of mounting and fixing component, high light transmission base material and sealing component, for realizing undistorted transmission of optical signal and medium physical isolation, sensing signal demodulation unit is optically coupled to isolated window structure, sensing signal demodulation unit includes light source module, light splitting device, image acquisition unit, signal processing unit and voltage output port, for generating output light, collecting bright and dark distribution image, processing signal and outputting standard voltage signal.The application scheme has strong adaptability, excellent anti-interference capability, and can meet the real-time monitoring needs of various reservoir liquid levels.

This invention belongs to the field of glass technology, and relates to a glass material for fiber optic imaging elements, its preparation method, and its application. The glass composition, by mass percentage, comprises the following components: 72-84% SiO2, 0.5-10% B2O3, 0.1-5.0% Al2O3, 1-10.5% K2O, 0.1-13% Na2O, 0.1-3% CaO, 0-1% CaF2, 0-1% Li2O, 0-1% MgO, 0-2% TiO2, 0-2% ZrO2, and 0-1% CeO2. The glass prepared by this invention is used for encapsulating or supporting imaging elements. It possesses a high softening point temperature, a coefficient of thermal expansion matching relevant optical materials, excellent flexural strength, elastic modulus, and good machinability. In high-temperature melting and pressing processes, it is placed on the outside of the imaging part, providing mechanical protection and thermal stability.

The application relates to the fields of optical fiber image transmission and glass materials, in particular to a low-refraction anti-erosion skin layer glass, a preparation method thereof and application of the glass in an optical fiber inverter. The glass is composed of the following raw materials in terms of mass percentage of the mixture powder: 44-65% of SiO2, 5-16.5% of Al(OH)3, 2-7% of Na2CO3, 14-26.5% of KNO3, 5-13% of H3BO3, 0.5-5% of an alkaline earth metal carbonate, 0.1-1% of CeO2 and 0.1-1.5% of YF3, and the total amount of the silica, the boric acid and the aluminum hydroxide ranges from 69% to 81%. The glass has the characteristics of low refractive index (less than 1.48), good matching with high refractive index core material, excellent anti-erosion and chemical stability and environmental protection and no heavy metal, and can effectively optimize the production process and reduce the cost while improving the performance of the optical fiber device and prolonging the service life.

An illumination system includes a surface configured to have an imaging target placed thereon, a light source, a beam splitter and at least a first mirror. The beam splitter is configured to split the beam of light from the light source and the first mirror is configured to reflect a first beam from the beam splitter onto the surface with the imaging target. An imaging system includes an imaging surface configured to have an imaging target placed thereon, a mirror, and a capturing device. The capturing device is configured to capture an image of the imaging target through a path of emitted light that extends from the imaging target, reflects off of the mirror, and to the capturing device. The mirror, the capturing device, or both are configured to move in a diagonal direction with respect to the imaging surface to reduce a length of the path of emitted light. Systems and methods to calibrate an imaging system to remove or reduce non-uniformities within images of samples due to imaging system properties.

The present invention relates to a flexible optical waveguide for transmitting electromagnetic waves, and in particular for transmitting image information, and to a method for manufacturing a flexible optical waveguide.

An optical fiber cable includes a cable jacket defining a bore of the cable and a buffer tube that includes at least one optical fiber. The buffer tube has at least one of a non-circular exterior profile or a non-circular interior profile.

A dual-band aperture for a high-speed vehicle includes a substrate composed of a radiofrequency (RF)-transparent material. The substrate has an inner surface arranged to face an internal region of the vehicle and an outer surface arranged to face an environment outside the vehicle. The dual-band aperture further includes multiple, spaced-apart rods composed of an electro-optical / infrared (EO / IR)-transparent material. The rods extend through the substrate between the inner surface and the outer surface to provide EO / IR paths through which the environment outside the vehicle can be imaged.

An optical fiber arrangement method includes: preparing an intermittently connected optical fiber ribbon including optical fibers arranged side by side at a first pitch larger than a fiber diameter; holding a non-connecting region of the optical fiber ribbon with a holder, wherein connecting portions of the optical fiber ribbon intermittently connect the optical fibers extending out from the holder to each other; changing a width of the optical fiber ribbon in an interior of the holder; and arranging the optical fibers, extending out from the holder, with intervals of the optical fibers changed from the first pitch to a second pitch smaller than the first pitch by removing the connecting portions in a holding state where the holder is holding the optical fibers.

The utility model relates to the technical field of clamp, disclose a kind of solidification assembly fixture of optical fiber array, including operation platform, and optical fiber array mechanism is arranged on operation platform, and optical fiber array mechanism includes base, and several V-shaped grooves are opened in base, and optical fiber is placed on V-shaped groove, and the clamping mechanism for fixing the position of optical fiber is equipped with on the both sides of optical fiber, and lifting mechanism is equipped with directly above clamping mechanism;Limiting mechanism for fixing optical fiber array mechanism is also arranged on operation platform, and the limiting block of fixed base is included in limiting mechanism, and rubber pad is fixed in the inside of limiting block.The upper support of the utility model can form symmetrical clamping with lower support, and optical fiber is accurately clamped from top to bottom direction, avoid the intensity deviation of artificial operation, and the inside of upper support and lower support is equipped with flexible buffer layer, both can buffer the pressure when clamping by self elasticity, avoid the fracture of glass material due to rigid extrusion of optical fiber, and upper support and lower support can also prevent hard friction from occurring on the surface of optical fiber, and scratch optical fiber.

Disclosed is a hollow-core microstructured fiber ribbon and a preparation method thereof. The hollow-core microstructured fiber ribbon includes a plurality of hollow-core microstructured fibers arranged side by side. The plurality of hollow-core microstructured fibers have identical end-face structures and are coated with a ribbon-forming resin for fixing positions of the hollow-core microstructured fibers. A plurality of anti-resonant microstructured elements are distributed on an inner side of a glass capillary tube, an outermost coating are coated on the glass capillary tube, and the outermost coating has at least one pair of parallel positioning surfaces. Positioning surfaces of adjacent hollow-core microstructured fibers are aligned and spliced with each other, such that the plurality of hollow-core microstructured fibers arranged side by side are fixed in the ribbon-forming resin in a same orientation. In the hollow-core microstructured fiber ribbon provided by the disclosure, the hollow-core microstructured fibers are oriented by means of non-circular fiber coatings and are arranged side by side by means of parallel positioning surfaces, ensuring consistent orientations of the end-faces of all the hollow-core microstructured fibers in the fiber ribbon, thereby improving splicing efficiency and reducing splicing losses.

A method for producing a glass strand, the method including: (1) a drawing step of drawing raw filaments composed of a glass composition containing SiO2 in a compositional amount of 90% by mass or more into glass fibers under conditions of a melting temperature of 1,500 to 3,500°C and a tension of 0.1 to 1.0 cN per filament; and (2) a bundling step of bundling 30 to 400 of the glass fibers obtained in the drawing step to produce a glass strand. This can provide a method for producing a glass strand in which the occurrence of thread breakage during drawing into glass fibers is reduced, and a method for producing a glass yarn in which the occurrence of thread breakage or fuzzing during thread twisting is reduced and a variation in quality is small between the beginning part and end part of winding in a long-length glass yarn.

Provided in the present application are a high-resolution fiber optic image transmission element for X-ray detection, a preparation method therefor and the use thereof. The preparation method for a high-resolution fiber optic image transmission element for X-ray detection comprises the steps of: acid pickling the cross section of one end of a fiber optic image transmission element, such that microporous structures having a depth of 100-500 μm are formed at the cross section, thereby obtaining an acid pickled fiber optic image transmission element, the core of the fiber optic image transmission element being made of an acid-etchable material, and a cladding being made of a material resistant to acid etching; filling the microporous structures with perovskite quantum dot glass powder to obtain a filled fiber optic image transmission element; and providing a protective layer at a filling surface of the filled fiber optic image transmission element to obtain a high-resolution fiber optic image transmission element for X-ray detection.

The utility model belongs to optical fiber lighting technical field especially relates to a modularization curtain formula optical fiber light emitting device, include: light guide base, light panel, shading patch, optical fiber and light emitting lamp strip, one end of light guide base is provided with panel mounting groove, the other end of light guide base is provided with light groove, light emitting lamp strip is installed in light groove, light panel is installed in panel mounting groove, shading patch sets up in the one side of light panel deviating from light groove, light panel and shading patch are all interval setting with optical fiber mounting hole along the length direction, optical fiber mounting hole with optical fiber adapts, the optical fiber is inserted in optical fiber mounting hole. The utility model discloses shading patch eliminates cross light, realizes even light silk curtain effect, the utility model discloses every optical fiber can be replaced individually, reduces maintenance cost, the utility model discloses the end face of optical fiber and the light -transmitting surface are pasted, cooperate light groove and can improve coupling efficiency.

This invention provides an optical fiber reversal control system based on a pitch-changing optical fiber array. The control system includes a server, a V-groove component, an optical fiber cladding, and at least two optical fibers. It also includes a detection module, a reversal module, a supply module, and a pulling module. The reversal module adjusts the position of each optical fiber. The supply module supplies the optical fiber cladding and winds it around the distributed optical fibers to form the main body of the optical fiber array. The detection module detects the wound optical fiber array, and the pulling module pulls the wound optical fiber array. This invention, through the cooperation of the detection unit and the supply module, improves the processing accuracy of the optical fiber array during manufacturing, ensuring a high yield rate for the entire optical fiber array.