EP2920629A1 - Dispositif de liaison optique - Google Patents

Dispositif de liaison optique

Info

Publication number
EP2920629A1
EP2920629A1 EP13779550.6A EP13779550A EP2920629A1 EP 2920629 A1 EP2920629 A1 EP 2920629A1 EP 13779550 A EP13779550 A EP 13779550A EP 2920629 A1 EP2920629 A1 EP 2920629A1
Authority
EP
European Patent Office
Prior art keywords
optical
coupling
circuit board
connection device
guide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP13779550.6A
Other languages
German (de)
English (en)
Inventor
Ying HAO
Gino Leuenberger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Reichle and De Massari AG
Original Assignee
Reichle and De Massari AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Reichle and De Massari AG filed Critical Reichle and De Massari AG
Publication of EP2920629A1 publication Critical patent/EP2920629A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables

Definitions

  • the invention relates to a connecting device according to the preamble of patent claim 1.
  • DE 102 39 575 B3 discloses a connecting device for connecting and transmitting optical signals from an optical printed circuit board designed as a plug-in card to an optical backplane and vice versa.
  • the object of the invention is in particular to provide a generic connection device with advantageous properties with respect to a coupling of two optical circuit boards.
  • the object is achieved by the characterizing features of claim 1, while advantageous embodiments and further developments of the invention can be taken from the subclaims.
  • the invention is based on an optical connection device with at least one first coupling unit, which defines a first beam direction and is provided for coupling to at least one first optical circuit board, with at least one second coupling unit, which defines a second beam direction and for coupling to at least one second optical Circuit board is provided, wherein the first beam direction with the second beam direction forms an angle of at least substantially 90 °, and with at least one light guide, which is arranged between the at least one first coupling unit and the at least one second coupling unit. It is proposed that the optical connection device has at least one guide unit which at least partially guides the at least one light guide, starting from the at least one first coupling unit to the at least one second coupling unit.
  • optical connection device is, in particular, a device which is provided to connect at least one optical waveguide of at least one first optical printed circuit board to at least one optical waveguide of at least one second optical printed circuit board, the optical connecting device being in particular separate, in particular from the
  • an "optical printed circuit board” is to be understood in this context in particular as a printed circuit board which comprises at least one optical waveguide.
  • the term "provided” should be understood to mean in particular and / or equipped here and hereinafter a “coupling unit” is to be understood in this context in particular a unit which is provided with at least one optical circuit board and in particular with an edge to be coupled at least one optical circuit board.
  • the coupling unit is intended to be mechanically coupled, in particular by at least one plug-in operation, to the at least one optical printed circuit board
  • At least one optical connecting path between the at least one optical waveguide of the at least one optical printed circuit board and the at least one optical waveguide is produced in a coupled state of the connecting device
  • an end face of the at least one optical waveguide of the connecting device is sufficiently precise relative to an end face of the at least one optical waveguide
  • the coupling unit preferably has alignment elements, such as, for example, pins and / or sockets, for a particularly passive alignment of the at least one en light guide relative to at least one optical fiber of the at least one optical circuit board.
  • a main extension plane of the at least one first optical printed circuit board preferably runs at least substantially perpendicular to a main extension plane of the at least one second optical printed circuit board.
  • a second beam direction "an angle of at least substantially 90 °" is to be understood in particular that two straight lines which run along the beam directions form a cutting angle which is less than 20 °, in particular less than 10 °, preferably deviates by less than 5 ° and particularly advantageously by less than 2 ° from a right angle.
  • a "guide unit” should be understood as meaning, in particular, a unit which comprises at least one guide element whose geometry and / or arrangement, in particular also relative to at least one further guide element of the guide unit, at least partially guide at least one light guide
  • a "guide element” should be understood to mean, in particular, an element which, in an assembled state, at least partially guides the at least one light guide by abutting on at least one of its surfaces.
  • the guide element has at least one groove and / or at least one bore and / or at least one web for the at least partial guidance of the at least one optical waveguide.
  • the at least one guide element is made, for example, from a material having a greater rigidity, in particular bending stiffness, than the at least one light guide, for example from a metal and / or a metal alloy and / or from plastic and / or from a combination of various suitable materials ,
  • the fact that the guide unit "guides the light guide at least partially" is to be understood in particular that the guide unit and in particular the at least one guide element in at least one sub-region at least one guideway along which the at least one light guide in an assembled state of the
  • the guideway is preferably designed to be closed on at least three sides, in particular the light guide between the at least one first coupling unit and the at least one second coupling unit is at least 25%, in particular over at least 50%, preferably over at least 75% and especially partly over at least 95% of a path length.
  • the at least one guideway at least partially describes a circular arc, in particular with a radius of at least 7 mm, preferably at least 9 mm and particularly advantageously at least 10 mm and in particular a midpoint angle of at least 30 °, preferably at least 60 ° and particularly advantageous at least 85 ° and in particular of at most 95 °.
  • the at least partial guidance of the at least one optical waveguide by the guide unit is preferably carried out both in an uncoupled state and in a coupled state of the optical connecting device.
  • optical connection device in this context should be understood in particular to mean a state in which the optical connection device is separated from the at least one first optical circuit board and / or from the at least one second optical circuit board State "should be understood in particular a state in which there is an optical coupling between the connecting device and the at least one first optical printed circuit board and / or the at least one second optical printed circuit board.
  • a "light guide” is to be understood in this context, in particular an optical transmission conductor, which is intended in particular to transport light signals, and which in particular a transparent core, preferably made of glass or plastic fiber, and a sheath surrounding the core of a material
  • the optical waveguide can be embodied in particular as a singlemode and / or multimode optical waveguide
  • a large number of optical waveguides are guided, in particular at least substantially parallel to one another
  • the direction relative to the reference direction has a deviation, in particular less than 2 °, Weiner advantageous than 1 0 and more preferably less than 0.5 °.
  • an optical connection device can be provided with advantageous properties with respect to a coupling of two optical circuit boards, which allows in particular a comfortable and modular connection of two optical circuit boards.
  • a coupling of the optical Connecting device can be achieved with a edge of an optical circuit board space-saving connection to a second optical circuit board.
  • the at least one light guide be bendable in a disassembled state.
  • the fact that the light guide is "bendable" should in this context be understood in particular to mean that the light guide, in particular at a temperature between at least 0 ° C and at most 40 ° C, is plastically and / or elastically deformable and, in particular, destructive and / or without damage, a bending radius of less than 10 mm, preferably a bending radius of less than 9 mm and particularly advantageously less than 7 mm, can be understood in this context to mean, in particular, a state prior to assembly of the light guide in the guide unit.
  • the at least one light guide is designed as an optical fiber.
  • an "optical fiber” is to be understood as meaning, in particular, an element which comprises a light-conducting thread which is covered with a material which has a lower refractive index than the light-conducting thread
  • the optical fiber is formed as a glass fiber
  • the at least one optical waveguide be designed as an optical waveguide
  • Optical waveguide is to be understood in particular a waveguide for the transmission of light signals, which in particular has a non-circular cross section, in particular with at least one at least substantially flat side.
  • the optical waveguide has an at least substantially rectangular cross section.
  • the optical waveguide can be made of silicon and / or glass and / or transparent ceramic and / or plastic, for example.
  • the optical waveguide is a polymer waveguide.
  • a "polymer waveguide" is to be understood as meaning, in particular, a plastic optical waveguide, the polymer waveguide preferably having a core, in particular in particular, a core of polymethylmethacrylate, and a sheath, in particular a sheath of fluorinated methacrylates, with a lower refractive index than that of the core, on.
  • a plurality of polymer waveguides can be introduced into a film substrate, such as a PET film, or applied to the film substrate.
  • a film substrate such as a PET film
  • an advantageously simplified manufacturing process for the optical connecting device can be achieved.
  • the guide unit at least partially surrounds the at least one light guide.
  • the fact that the guide unit "at least partially surrounds at least one light guide” is to be understood in particular to mean that the at least one guide element of the guide unit surrounds the light guide in the circumferential direction on at least two sides.
  • At least one of the coupling units is designed as a ferrule.
  • a "ferrule” is to be understood as meaning, in particular, a receptacle made of ceramic, plastic, glass and / or metal, in particular ends of a light guide or a plurality of light guides.
  • the at least one first coupling unit and the at least one second coupling unit are both formed as ferrules. ⁇ br/> ⁇ br/> [0009]
  • a "spring element” is to be understood as meaning in particular an element which has at least one extension which, in a normal operating state, is at least one spring element 10%, in particular by at least 20%, preferably by at least 30% and particularly advantageously by at least 50% elastically changeable, and which in particular produces a counterforce dependent on a change in extension and preferably proportional to the change, which counteracts the change.
  • An “extension” of an element should be understood as meaning, in particular, a maximum distance between two points of a vertical projection of the element onto a plane Tolerances that occur in particular during assembly of the connecting device can be advantageously compensated.
  • the optical connection device comprises at least one elastic sleeve, which is arranged between the at least one light guide and at least one of the coupling units.
  • An “elastic sleeve” is to be understood in particular as meaning a sleeve made of an elastic material, the inner geometry of which is designed such that it surrounds the at least one optical waveguide in a form-fitting manner elastic sleeve between the at least one first coupling unit and the at least one light guide and at least one second elastic sleeve between the at least one light guide and the at least one second coupling unit is an "elastic" material is to be understood in particular a material that is damage-free and / or non-destructively repeatedly deformable and in particular strives after a deformation independently back to a basic shape.
  • the elastic material preferably has a hardness of not more than 78 Shore A, preferably not more than 66 Shore A, particularly preferably not more than 50 Shore A and in particular of at least 40 Shore A.
  • a system comprising at least a first optical circuit board, at least one second optical circuit board and at least one optical connection device according to the invention.
  • the at least one first optical circuit board and the at least one second optical circuit board each comprise at least one light guide, which comprises at least one end that extends at least substantially to an edge of the respective optical circuit board.
  • an "edge" of an optical printed circuit board should be understood to mean, in particular, an outermost edge region of the optical printed circuit board, which is formed in particular by at least one component, such as one end of a light guide and / or a carrier plate in that one end of a light guide "substantially reaches as far as an edge of an optical circuit board” should be understood in particular that the edge of the optical circuit board is formed by the end of the light guide itself and / or that the end of the light guide at most by 20 ⁇ , In particular, at most by 15 ⁇ , preferably at most by 10 ⁇ and more preferably offset by at most 5 ⁇ toward a center of the optical circuit board from the edge of the optical circuit board.
  • At least one of the optical circuit boards has at least one adapter which comprises at least one alignment element and is provided for coupling to the at least one optical connection device.
  • an "adapter” should be understood as meaning in particular an arrangement of at least one alignment element and at least one light guide, in particular on an edge of an optical printed circuit board, which forms an interface between at least one optical printed circuit board and at least one optical connecting device the adapter is a mechanical and / or optical coupling of at least one optical connecting device with at least one optical printed circuit board.
  • a “mechanical coupling” is to be understood in particular as meaning that there is a detachable connection between at least one optical printed circuit board and an optical connecting device
  • optical coupling is to be understood in particular that the at least one optical fiber of an optical circuit board in particular with respect to position, orientation and / or geometry of the at least one optical fiber of a optical connection device is adapted that an advantageously low-loss transmission of an optical signal is achieved.
  • an "alignment element” is to be understood in particular to mean an element, such as a pin or a sleeve, which is in particular intended to be positively connected to at least one alignment element of the at least one optical connection device.
  • FIG. 1 shows a part of a system with an optical connection device, which has optical fibers for signal transmission, and an optical circuit board coupled to the optical connection device,
  • FIG. 2 shows an alternative optical connection device which comprises optical fibers combined into a signal transmission in a flat cable
  • FIG. 3 shows a further optical connection device, which comprises polymer waveguides for a signal transmission. Description of the embodiments
  • Figure 1 shows an optical connection device 10a with a first coupling unit 12a, which is coupled to an optical circuit board 16a.
  • a second coupling unit 18a of the optical connection device 10a is intended to be coupled in the same way to a second, not shown, optical circuit board.
  • the optical connection device 10a has a guide unit 24a, which is arranged in a mounting frame 36a of the optical connection device 10a.
  • the guide unit 24a is arranged between the coupling units 12a, 18a.
  • the mounting frame 36a of the optical connector 10a is made of a hard elastic material such as a suitable plastic, preferably polyethylene and / or polypropylene.
  • the coupling units 12a, 18a are arranged and aligned within the mounting frame 36a such that two beam directions 14a, 20a defined by the coupling units 12a, 18a enclose an angle of 90 °.
  • the coupling units 12a, 18a of the optical connection device 10a are formed as ferrules with a cuboid base body.
  • the main body is preferably made of plastic, glass, ceramic and / or metal.
  • the coupling units 12a, 18a each have two recesses. The depressions are rectangular. In these recesses grip elements 42 a of the mounting frame 36 a. Due to the material properties of the mounting frame 36a, the holding elements 42a exert a force on the coupling elements 12a, 18a, which is respectively directed in the direction of the guide unit 24a and ensures positioning of the coupling units 12a, 18a within the mounting frame 36a of the optical connection device 10a.
  • the coupling units 12a, 18a are positioned such that their front sides 38a terminate at least substantially flush with the mounting frame 36a of the optical connection device 10a. Preferably, however, the coupling units 12a, 18a are positioned such that their front sides 38a protrude beyond the mounting frame 36a of the optical connector 10a. This makes it possible to ensure that, when coupled to an optical circuit board 16a, the front sides 38a of the coupling units 12a, 18a contact the optical circuit board 16a in front of the mounting frame 36a of the optical connection device 10a.
  • the coupling units 12a, 18a form mutually parallel guide tubes 44a. For clarity, in Figure 1 only six guide tubes 44a shown. However, a different number is also conceivable.
  • the guide tubes 44a have a circular cross-section.
  • the guide tubes 44a extend continuously from in each case one rear side 40a of the coupling units 12a, 18a to the respective front sides 38a of the coupling units 12a, 18a. Between the guide tubes 44a is in each case a mutual distance of 250 ⁇ . Depending on the application, a different distance between the guide tubes 44a can also be selected. Via not shown connecting elements, the optical circuit board 16a is mechanically connected to the optical connection device 10a.
  • the guide unit 24a which is disposed within the mounting frame 36a of the optical connector 10a between the coupling units 12a, 18a, has two flat surfaces which are at right angles to each other. The flat surfaces abut on the mounting frame 36a of the optical connector 10a.
  • the guide unit 24a Opposite the right angles formed by the two flat surfaces, the guide unit 24a has a concave surface 52a, which is designed in particular in a radius of at least 7 mm.
  • the guide unit 24a has guide channels 50a open towards the concave surface.
  • the guide channels 50a are each formed the same depth along an entire length.
  • the guide channels 50a have a U-shaped or V-shaped cross section.
  • the guide channels 50a are parallel to each other. Ends of the guide channels 50a are aligned with the guide tubes 44a of the coupling units 12a, 18a.
  • the number of guide channels 50a corresponds to the number of guide tubes 44a of the coupling units 12a, 18a.
  • FIG. 1 shows that each coupling unit 12a, 18a is assigned in each case two spring elements 26a.
  • the spring elements 26a are embedded in spring element receptacles 54a of the guide unit 26a.
  • the spring element receptacles 54a are designed as blind holes, the openings of which are respectively directed in the direction of the coupling units 12a, 18a.
  • the spring elements 26a exert a force on the coupling elements 12a, 18a, which counteracts the force exerted by the holding elements 42a of the mounting frame 36a on the coupling elements 12a, 18a.
  • an equilibrium of forces arises at the coupling elements 12a, 18a, whereby in particular manufacturing tolerances can be compensated.
  • optical fibers 22a of the optical connector 10a are arranged in the guide channels 50a of the guide unit 26a.
  • the light guides 22a are formed as individual glass fibers. Alternatively, it would also be conceivable to form optical fibers as individual polymeric optical fibers.
  • the light guides 22a are bendable in a disassembled state. Thus, the light beams 22a assume a predetermined shape by the guide channels 50a.
  • light guides 22a are shown in only two of the guide channels 50a.
  • the guide channels 50a surround the light guides 22a from three sides. Within the guide channels 50a, the light guides 22a are guided over the entire path length between the coupling elements 12a, 18a.
  • an example wavy guidance of the light guide 22a within the guide channels 50a is conceivable.
  • linear movements of the coupling units 12a, 18a by stretching and / or compression of the waves, in which the light guides 22a are guided can be compensated.
  • a fixation of the light guides 22a in the guide channels 50a can be done via a particular punctiform bonding.
  • the ends of the light guides 22a are passed through the guide tubes 44a, which are inserted into the coupling elements 12a, 18a, and terminate in a known manner flush with the front sides 38a of the coupling units 12a, 18a.
  • the light guides 22a of the connecting device are fixed, for example by gluing.
  • the optical circuit board 16a to which the optical connector 10a is coupled has a number of optical fibers 30a corresponding to the number of optical fibers 24a of the optical connector 10a.
  • the optical fibers 30a of the optical circuit board 16a are applied to a substrate of the optical circuit board 16a. It is also conceivable to embed optical fibers of an optical printed circuit board, for example by lamination, in a substrate of the optical printed circuit board. In a coupling region, the optical fibers 30a of the optical circuit board 16a are parallel to each other and orthogonal to an edge 32a of the optical circuit board 16a.
  • the optical waveguides 30a of the optical printed circuit board 16a terminate in each case in particular with an end face flush with the edge 32a of the optical printed circuit board 16a.
  • the optical circuit board 16a has an adapter 34a for aligning the optical circuit board 16a relative to the optical connector 10a.
  • the adapter 34a has alignment elements, not shown, which engage in a coupling in non-illustrated counterparts of the coupling elements 12a, 18a, whereby the optical fibers 22a of the optical circuit board exactly to the optical fibers 30a are aligned with the optical connection device 10a, so that an at least largely loss-free transmission of optical signals is ensured.
  • FIGS. 2 and 3 show two further embodiments of the invention.
  • the following descriptions and the drawings are essentially limited to the differences between the exemplary embodiments, with reference in principle also to the drawings and / or the description of the other exemplary embodiments, in particular of FIG. 1, with respect to identically named components, in particular with regard to components having the same reference symbols , can be referenced.
  • To distinguish the embodiments of the letter a is the reference numerals of the embodiment in Figure 1 adjusted.
  • the letter a is replaced by the letters b and c.
  • FIG. 2 shows an optical connection device 10b with a first coupling unit 12b for coupling to a first optical circuit board and with a second coupling unit 18b for coupling to a second optical circuit board.
  • the coupling units 12b, 18b are each designed in two parts and each have an upper half 62b and a lower half 64b.
  • the two halves of the coupling units 12b, 18b are inextricably linked together in particular by gluing. Both halves of the coupling units 12b, 18b have an identical structure. In the connected state, this structure forms guide tubes 44b inside.
  • the coupling units 12b, 18b each have two rectangular recesses. In these recesses, holding elements 42b, which are formed by a mounting frame 36b of the optical connection device 10b, engage. Due to the material properties of the mounting frame 36b, the retaining elements 42b exert a force on the coupling elements 12b, 18b, which ensures positioning of the coupling units 12b, 18b within the mounting frame 36b of the optical connection device 10b.
  • the light guides 22b are in particular guided within a flat cable 56b and formed as individual glass fibers and / or individual polymeric optical fibers.
  • the flat Cable 56b with the light guides 22b is completely surrounded by a guide unit 24b in the circumferential direction over a total path length between the first coupling unit 12b and the second coupling unit 18b.
  • the guide unit 24b is designed as a bent tube with a flat, in particular rectangular, cross-section. The inner dimensions of the guide unit 24b are dimensioned such that the flat cable 56b is enclosed at least substantially free of play.
  • the guide unit 24b is made of metal and / or plastic and has a bend of 90 °, which is designed in particular in a radius of at least 7 mm. Between the guide unit 24b and the coupling units 12b, 18b, an elastic sleeve 28b is arranged in each case.
  • the elastic sleeve 28b may be made of an elastomer based on natural and / or synthetic rubber, for example.
  • the elastic sleeve 28b has a particular rectangular cross-section. Furthermore, the elastic sleeve 28b is traversed by a passage opening with a particularly rectangular cross section.
  • the elastic sleeves 28b are each guided with a first end over one end of the guide unit 24b.
  • a respective second end of the elastic sleeves 28b is positively inserted into a cavity of the respective coupling unit 12b, 18b.
  • the flat cable 56b extends with the light guides 22b free from the guide unit to the guide tubes 44b of the coupling units 12b, 18b.
  • the individual light guides 22b extend within the guide tubes 44b and terminate in a known manner flush with a front side 38b of the respective coupling unit 12b, 18b.
  • the light guides are fixed in particular by gluing and / or jamming.
  • the coupling units 12b, 18b associated with each two spring elements 26b.
  • FIG. 3 shows an optical connection device 10c with a first coupling unit 12c for coupling to a first optical circuit board and with a second coupling unit 18c for coupling to a second optical circuit board.
  • 18c each have a rectangular recesses 60c is introduced, which extends from a rear side 40c of the respective coupling unit 12c, 18c to a front side 38c of the respective coupling unit 12c, 18c.
  • an elastic sleeve 28c is fitted in each case.
  • a light guide 22c is arranged between the first coupling unit 12c and the second Koppentician 18c.
  • the light guide 22c is designed as a polymer waveguide, which has light-conducting paths 58c, which are embedded in particular in a flexible film substrate. For the sake of clarity, only two of the light-conducting paths 58c are shown.
  • the light guide 22c is guided inside the elastic sleeves 28c through the coupling elements 12c, 18c and ends flush with a respective front face 38c of the coupling units 12c, 18c.
  • the light guide 22c is completely surrounded by a guide unit 24c in the circumferential direction over a total path length between the first coupling unit 12c and the second coupling unit 18c.
  • the guide unit 24c is made of metal and / or plastic and has a bend of 90 °, which is designed in particular in a radius of at least 7 mm.
  • the coupling units 12c, 18c are each assigned two spring elements 26c.
  • at least one spring element can be arranged between the mounting frame 36c and the guide unit 24c.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

L'invention concerne un dispositif de liaison optique (10a; 10b; 10c) comprenant au moins une unité de couplage (12a; 12b; 12c) qui définit une première direction du faisceau (14a; 14b; 14c) et est prévue pour être couplée à au moins une première carte de circuits imprimés optique (16a), au moins une deuxième unité de couplage (18a; 18b; 18c) qui définit une deuxième direction du faisceau (20a; 20b; 20c) et est prévue pour être couplée à au moins une deuxième carte de circuits imprimés optique, la première direction du faisceau (14a; 14b; 14c) formant avec la deuxième direction du faisceau (20a; 20b; 20c) un angle d'au moins pratiquement 90°, et au moins un guide de lumière (22a; 22b; 22c) qui est disposé entre ladite première unité de couplage (12a; 12b; 12c) et ladite deuxième unité de couplage (18a; 18b; 18c). Pour produire un dispositif de liaison optique de type générique aux propriétés avantageuses pour ce qui est du couplage de deux cartes de circuits imprimés optiques, le dispositif de liaison optique présente au moins une unité de guidage (24a; 24b; 24c) qui guide au moins en partie ledit guide de lumière (22a; 22b; 22c) en partant de ladite première unité de couplage (12a; 12b; 12c) vers ladite deuxième unité de couplage (18a; 18b; 18c).
EP13779550.6A 2012-11-13 2013-10-16 Dispositif de liaison optique Withdrawn EP2920629A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012110903.6A DE102012110903A1 (de) 2012-11-13 2012-11-13 Optische Verbindungsvorrichtung
PCT/EP2013/071577 WO2014075863A1 (fr) 2012-11-13 2013-10-16 Dispositif de liaison optique

Publications (1)

Publication Number Publication Date
EP2920629A1 true EP2920629A1 (fr) 2015-09-23

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EP (1) EP2920629A1 (fr)
DE (1) DE102012110903A1 (fr)
WO (1) WO2014075863A1 (fr)

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WO2003021322A2 (fr) * 2001-08-31 2003-03-13 Teradyne, Inc. Connecteur de fibres optiques a plaquette

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
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WO2014075863A1 (fr) 2014-05-22

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