259results about "Bundled fibre light guide" patented technology

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 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.

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.

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 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 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 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.

The invention relates to the field of optical fiber ribbons, and discloses a high-fiber-density windable optical fiber ribbon and a preparation method thereof.The high-fiber-density windable optical fiber ribbon comprises a plurality of optical fibers arranged side by side and a photocuring product of a bonding resin composition, the bonding resin composition comprises modified epoxy acrylate, a photoinitiator, a reactive diluent and a modified multi-walled carbon nanotube; the modified epoxy acrylate is prepared by polymerizing a hydroxyl-terminated intermediate prepared by reaction of 4-hydroxy-3-trifluoromethyl benzaldehyde and 4-aminophenol with a silicon-containing epoxy group intermediate to prepare hyperbranched epoxy resin, and introducing acrylic acid for reaction; the silicon-containing epoxy group intermediate is prepared by reacting phenyl tri (dimethyl siloxane) silane with allyl glycidyl ether; and the modified multi-walled carbon nanotubes are prepared by carrying out chemical silver plating on the multi-walled carbon nanotubes by adopting a silver ammonia method. The optical fiber ribbon prepared by the invention has good mechanical properties, high-temperature and high-humidity resistance, antistatic property and flame retardance.

Provided are a reduced-diameter low-loss optical fiber and an optical cable. The reduced-diameter low-loss optical fiber includes a quartz layer, an adhesive layer, a first coating layer, and a second coating layer which are sequentially provided from inside to outside along a radial direction of the reduced-diameter low-loss optical fiber; where the adhesive layer is configured to increase an adhesive force between the first coating layer and the quartz layer; the first coating layer is configured to protect the quartz layer; and the second coating layer includes a second coating layer matrix and a plurality of reinforcing members, a base material of the second coating layer matrix is the same as that of the first coating layer, and the plurality of reinforcing members are distributed in the second coating layer matrix, so as to increase a strength of the reduced-diameter low-loss optical fiber.

The present disclosure relates to a head up or head mounted display arrangement and a method for presenting at least one image via at least one surface element of a head up or head mounted display arrangement. The arrangement comprises at least one image generating element (301, 302) arranged to generate an image in a first image plane (346', 346"), at least one surface element, and a fibre optic face plate (340).The face plate is arranged in relation to the at least one image generating element such that the first surface lies at a first image plane. A second image plane lies at the second surface and the at least one surface element is arranged in the beam path from the second surface. The first image plane comprises a plurality of first part image planes each associated with an individual first part surface of the fibre optic face plate and / or the second image plane comprises a plurality of second part image planes each associated with an individual second part surface of the fibre optic face plate.

The invention discloses a non-polishing low-loss coupling optical fiber array adaptive to a deep silicon etching photon chip, a deep silicon etching photon chip coupling assembly and a method, and belongs to the technical field of silicon photon integration. The device comprises an optical fiber array main body, a V-shaped groove substrate and a special-shaped cover plate, the special-shaped cover plate is attached to the upper surface of the V-shaped groove substrate, an avoiding groove is formed in the position, corresponding to a deep silicon etching area of the end face of the chip, of the special-shaped cover plate, and the depth of the avoiding groove is not smaller than the total height of a residual step on the end face of the chip and a deep groove protruding structure so as to eliminate mechanical interference. The tail end of the optical fiber is positioned in the V-shaped groove, and the light-emitting end face is parallel and tightly butted with the end face of the chip. The customized avoiding groove is integrated in the cover plate, direct, lossless and low-loss coupling of the optical fiber array and the deep silicon etching silicon optical chip with the composite three-dimensional morphology end face can be achieved without extending the optical fiber, removing a bottom cover or polishing the end face of the chip, the integrity of the end face of the chip is effectively protected, and the coupling precision and the device yield are improved.

The utility model discloses an optical fiber array end face coupling packaging structure, which relates to the field of optical fiber communication, and comprises a glass substrate and a glass cover plate, the top surface of the glass substrate is provided with a plurality of V-shaped grooves for placing optical fiber arrays, and one ends of two groups of optical fiber arrays are arranged in the V-shaped grooves and are in butt joint one by one; the glass cover plate is arranged on the top surface of the glass substrate and used for being matched with the glass substrate to fix the optical fiber array; and injecting optical glue into one side where the glass substrate and the glass cover plate are connected so as to bond and cure the two groups of butted optical fiber arrays. According to the utility model, the glass substrate with the V-shaped groove is used for bearing the two groups of optical fiber arrays, so that the two groups of optical fiber arrays are respectively arranged at the two sides of the glass substrate with the V-shaped groove and are matched with the glass cover plate to complete fixation, and the two groups of optical fiber arrays are positioned in the same V-shaped groove to complete butt joint coupling without professional coupling equipment, thereby not only improving the butt joint precision, but also improving the accuracy of butt joint. And the operation is simpler and more convenient.

The utility model discloses an optical fiber array with double cover plates, which belongs to the technical field of optical fiber arrays and comprises a mounting seat, a rear cover plate is arranged at the top end of the mounting seat, a detachable drying assembly is fixedly mounted at the top end of the mounting seat, and the detachable drying assembly comprises a mounting groove, a moving block, a connecting plate, an ultraviolet lamp and an air blowing cylinder. Mounting grooves convenient to mount and dismount are formed in the two sides of the interior of the mounting base, moving blocks are slidably connected into the mounting grooves, and the rear cover plate, steps of a glass V-shaped groove, an optical fiber fusion point and a second optical fiber can be rapidly dried and solidified after glue bonding by dismounting the drying assembly; according to the optical fiber array processing device, the bonding effect is prevented from being affected by external impact or collision between optical fiber arrays, the working efficiency of optical fiber array processing is improved, meanwhile, the position of the connecting plate can be adjusted through cooperation of the mounting groove and the moving block, the moving block can be rapidly mounted and dismounted, and the device is convenient for workers to use.

An illumination unit for illuminating an area of operation during open surgery. The illumination unit including: a body; a fiber bundle configured to guide light towards a distal end of the body, and a reflector body arranged at the distal end of the body. Where at least a part of the fiber bundle is guided inside the body along a longitudinal direction, the fiber bundle is split up into a plurality of optical fibers which form a fiber layer on an inner surface of the body, end faces of the plurality of optical fibers are arranged at the distal end of the body, the reflector body encloses the end faces of the plurality of optical fibers in a radial direction and extends distally beyond the distal end of the body in the longitudinal direction, and an inner surface of the reflector body is a reflective surface.

To accurately position individual fibers of a light guide body and to keep minimum the size of the light guide bodies having ends terminated and connected.SOLUTION: The present invention relates to a storage member (1) for a plurality of optical fibers (3) of a light guide body (5) which comprise two end faces (9, 10) located on mutually opposite sides, and the storage member is manufactured from glass and has a plurality of linear passages (7), wherein the passages extend from the one end face (9) of the storage member to the other end face and also each have at least one end part made open, so that one optical fiber can be inserted into each passage. The passage has a length larger than its lateral dimension, the storage member has a length given by a distance of each end face and larger than a maximum lateral dimension of the storage member, and a separation face (13) formed at least partially or sectionally in the form of a fracture surface (131) extends on an outer peripheral surface (11) of the storage member.SELECTED DRAWING: Figure 1

A laser communication terminal comprises a laser, a receiver, and a photonic integrated circuit (PIC) optically coupled to the laser and receiver. The laser communication terminal also includes multiple optical fibers. Each of the multiple optical fibers is optically coupled to the PIC and to a microlens array. Each of the multiple optical fibers is attached to the microlens array. The PIC can include multiple waveguides and multiple phase-matching elements, and each of the multiple waveguides can be optically coupled to a corresponding phase-matching element.

The application discloses high-refractive glass for high-transmittance optical fiber image transmission elements and a preparation method thereof. The glass is composed of the following components: SiO2 15.0-25.0%, Al2O3 0-0.5%, B2O3 20.0-30.0%, MgO 1.01-2.0%, SrO 1.0-5.0%, BaO 15.0-25.0%, ZnO 0.5-2.0%, SnO2 0.1-0.2%, TiO2 5.0-9.0%, WO3 1.0-5.0%, La2O3 5.0-10.0%, Nb2O5 1.0-5.0%, Y2O3 0.5-2.0%, Ta2O5 1.1-5.0%, Gd2O3 0-0.9%. The application has good transmittance, high refractive index and high strain point temperature, and is used for filling glass of optical fiber image transmission elements.

The invention discloses a preparation method of a high-positioning-precision array stacked chalcogenide optical fiber image-transmitting bundle. The preparation method comprises the following steps: preparing an optical fiber preform with a square cross section, preparing a multifilament preform, preparing a first-stage optical fiber multifilament and a second-stage optical fiber multifilament, and preparing the optical fiber image-transmitting bundle. According to the preparation method, through a pre-compensation hot extrusion process, the shape rule of the square-section optical fiber monofilament is effectively ensured, and the regularity and stability of array arrangement are remarkably improved; a secondary optical fiber multifilament structure is introduced, monofilament accumulative errors are limited in a local range, the two ends of the secondary optical fiber multifilament are shaped in the vacuum heat treatment process through a mold with a limiting function, the sizes of the end faces of the secondary optical fiber multifilament are made to be consistent, and transmission and amplification of the errors in the follow-up bundling process are effectively restrained. Based on the process, the prepared array stacking chalcogenide optical fiber image-transmitting bundle has the comprehensive advantages of high resolution (small wire diameter), large number of pixels and high monofilament positioning precision.

The present invention relates to a waveguide (1) for transmitting electromagnetic waves, and in particular to a waveguide for transmitting image information from a proximal end (2) of the waveguide to a distal end (4) of the waveguide along a transmission direction (5) extending between the proximal and distal ends and across a cross section extending transversely to the transmission direction, wherein light may be transmitted through the waveguide (1) by Anderson localization, and the waveguide (1) has improved properties compared to conventional optical fiber bundles.

A tiled collimator array is disclosed. The tiled collimator array comprises a plurality of end caps, each connected to an optical fiber at its rear end, wherein the end caps are selected from hexagonal end caps and square end caps, and include an adhesive for bonding the end caps together, and the end caps are stacked in a compact structure.

The application relates to a device and method for pupil dilation and display of a virtual image phase array-based augmented reality display, which comprises a swept-frequency laser, a modulator, a collimator, a mirror, a MEMS and a virtual image phase array, the output end of the swept-frequency laser is connected with the input port of the modulator, the output port of the modulator is connected with the collimator, a video signal is used for modulating laser through the modulator, the output end of the modulator is connected with the collimator through an optical waveguide, the output of the collimator is reflected to the virtual image phase array through the mirror and then output, the mirror is controlled by the MEMS and scans along the X direction, the output spectrum of the swept-frequency laser is real-time changeable, and scanning along the Y direction is realized after the virtual image phase array.

The present disclosure relates to an optical device (1) for controlling light, the optical device (1) comprising: a first waveguide (2) for receiving a light beam from an external light source; at least a second waveguide (3); an optical coupler (4) for coupling the light beam from the first waveguide (2) to the second waveguide (3); a beam shaping structure (5) having a light emitting area (6) for emitting the light beam, wherein the second waveguide (3) is configured to guide the light beam coupled from the first waveguide (2) to the beam shaping structure (5), wherein the beam shaping structure (5) is configured to propagate the light beam received from the second waveguide (3) to the light emitting area (6) such that a beam divergence of the light beam emitted from the light emitting area (6) is lower than a beam divergence of the light beam received from the second waveguide (3).