WO2012147486A1 - Connecteur optique - Google Patents

Connecteur optique Download PDF

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Publication number
WO2012147486A1
WO2012147486A1 PCT/JP2012/059362 JP2012059362W WO2012147486A1 WO 2012147486 A1 WO2012147486 A1 WO 2012147486A1 JP 2012059362 W JP2012059362 W JP 2012059362W WO 2012147486 A1 WO2012147486 A1 WO 2012147486A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical fiber
optical
collimator lens
optical connector
resin joint
Prior art date
Application number
PCT/JP2012/059362
Other languages
English (en)
Japanese (ja)
Inventor
鈴木　等
小林　武
Original Assignee
三菱鉛筆株式会社
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 三菱鉛筆株式会社 filed Critical 三菱鉛筆株式会社
Publication of WO2012147486A1 publication Critical patent/WO2012147486A1/fr

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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
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3887—Anchoring optical cables to connector housings, e.g. strain relief features
    • G02B6/3888—Protection from over-extension or over-compression
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4292—Coupling light guides with opto-electronic elements the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G02B6/4214—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4246—Bidirectionally operating package structures

Definitions

  • the present invention relates to an optical connector using an optical collimator.
  • JP 2007-241094 A Japanese Patent Application Publication No. 11-133270
  • the size is small in terms of shape, and the positional relationship between the optical fiber and the collimator lens is maintained even if insertion and removal are repeated on the device surface Is required.
  • the present invention has been made in view of the foregoing, and it is an object of the present invention to provide an optical connector capable of aligning a collimator lens and an optical fiber with high accuracy without requiring a complicated assembly process.
  • a metal holding member having an accommodating portion for accommodating the collimator lens at one end and an insertion hole for inserting an optical fiber at the other end, and the holding member inserted at one end
  • a first insertion hole is formed, and the other end has a through hole in which a second insertion hole in which the optical fiber is inserted is formed, and an optical fiber gripping area is formed in a part of the through hole
  • An optical connector comprising: a resin joint, wherein at least one of the end face of the collimator lens and the optical fiber is brought into contact with a depressed portion formed in the vicinity of the housing portion of the holding member to perform positioning
  • An optical fiber fixing portion for housing an optical fiber fixing member is formed on the optical fiber holding area in the resin joint.
  • At least one of the collimator lens and the optical fiber is made to abut on the depressed portion provided in the holding member to position the collimator lens and / or the optical fiber with reference to the depressed portion. Since positioning can be performed, the working efficiency can be improved as compared with the case where a separate part is inserted into the holding member as in the conventional case, and the collimator lens and the optical fiber can be easily made while suppressing an increase in cost. It becomes possible to perform positioning. Further, since the optical fiber fixing portion for housing the optical fiber fixing member is formed on the optical fiber holding area in the resin joint, it is possible to firmly fix the positioned optical fiber with a small number of parts. As a result, the collimator lens and the optical fiber can be aligned with high accuracy without requiring a complicated assembly process.
  • a part of the optical fiber holding area is opened to the optical fiber fixing part side, and a part of the optical fiber inserted in the optical fiber holding area is at the bottom of the optical fiber fixing part It is possible to expose.
  • the optical fiber is pressed from above by the bottom surface of the optical fiber fixing member accommodated in the optical fiber fixing portion, the positioned optical fiber can be firmly fixed.
  • the optical fiber fixing member may have a convex portion accommodated in the optical fiber fixing portion, and a flat portion disposed on the upper surface of the resin joint.
  • the optical fiber fixing member since the optical fiber fixing member has a simple structure, the cost required for the manufacture can be reduced.
  • the optical fiber fixing member is exposed from a fixing portion having a substantially U-shaped cross section housed in the optical fiber fixing portion, a part of the resin joint, and the second insertion hole.
  • a bundling unit for bundling a part of the optical fiber.
  • a plurality of the first insertion holes may be provided in parallel. In this case, even an optical connector loaded with a plurality of optical fibers can be obtained by a simple assembly process.
  • a fitting portion may be provided on the outer periphery of the resin joint to be fitted to the fitting portion on the device side when connected to the device.
  • the connection between the optical connector and the device can be made favorable.
  • the optical fiber is a plastic optical fiber.
  • the material is flexible, it can be suppressed from above by the optical fiber fixing member, and the number of parts can be reduced.
  • the present invention it is possible to align the collimator lens and the optical fiber with high accuracy without requiring a complicated assembly process.
  • FIG. 4A is a perspective view of the resin joint in the first embodiment
  • FIG. 4B is a side sectional view of the resin joint in the first embodiment
  • FIG. 6 is a cross-sectional view taken along the line AA shown in FIG. It is an enlarged view in the dashed-two dotted line B shown in FIG. It is explanatory drawing which shows the assembly process of the optical connector which concerns on 1st Embodiment.
  • FIG. 1 is a side sectional view schematically showing a state in which the optical connector according to the present invention is connected to a device.
  • FIG. 1 for convenience of explanation, a device provided with a light receiving / emitting element is described, but the configuration of the device is not limited to this and can be changed as appropriate.
  • the light receiving / emitting element 101 is disposed inside the case 102 and not shown on the optical axis of the light receiving / emitting element 101.
  • a condenser lens 103 and an oblique polishing surface 104 supported by a support means are arranged.
  • an opening 105 for inserting the optical connector 10 is provided on the side surface of the case 102 in the device 100.
  • the laser light emitted from the light emitting element 101 is reflected by the oblique polishing surface 104 through the condensing lens 103 and is guided to the opening 105. Then, the light reflected by the oblique polishing surface 104 is condensed by the collimator lens 12 of the optical connector 10 and enters the optical fiber 13. The light thus incident propagates in the optical fiber 13.
  • the optical path of the laser beam emitted from the light emitting element 101 is indicated by a dotted line.
  • the device 100 light propagating through the optical fiber 13 is collimated by passing through the collimator lens 12. Then, the laser beam emitted from the optical fiber 13 is reflected by the oblique polishing surface 104, and is guided to the light receiving element 101 through the condensing lens 103.
  • the optical path of the laser light emitted from the optical fiber 13 is indicated by a dotted line.
  • the optical connector 10 when the optical connector 10 is inserted to a predetermined position in the case 102, the laser light transmitted between the light receiving / emitting element 101 and the optical fiber 13 is focused on the condensing lens 103 and diagonally It is designed to be able to enter and exit properly through the polishing surface 104.
  • the configuration of the optical connector 10 according to the present invention connected to such a device 100 will be described.
  • FIG. 2 is an external perspective view of the optical connector 10 according to the first embodiment of the present invention.
  • FIG. 3 is a side sectional view of the optical connector 10 according to the first embodiment of the present invention.
  • the optical connector 10 is held by a plurality of (two in the present embodiment) holders 11 as holding members having a generally cylindrical shape and one end of each holder 11.
  • the collimator lens 12, a plurality of (two in the present embodiment) optical fibers 13 inserted from the insertion holes 11a provided at the other end of the holders 11, the holders 11 and the optical fibers 13 are held.
  • a fixing binding member 15 for fixing and binding each optical fiber 13 and a jacket 16 for covering each optical fiber 13.
  • a plastic optical fiber is preferably inserted as the optical fiber 13.
  • the holder 11, the collimator lens 12, and the optical fiber 13 constitute an optical collimator 10a. Details of this optical collimator 10a will be described later.
  • FIG. 4A is a perspective view of the resin joint 14, and FIG. 4B is a side sectional view of the resin joint 14.
  • the resin joint 14 has a generally rectangular parallelepiped shape, and a through hole is provided along its longitudinal direction. One end of the through hole is provided with an insertion hole 14a into which the holder 11 is inserted, and the other end is provided with an opening 14b into which the optical fiber 13 is inserted.
  • an optical fiber fixing portion 14 c having a shape in which a part of the outer periphery of the resin joint 14 is cut out in a substantially rectangular shape in cross section is formed.
  • a front end portion 14d the portion of the resin joint 14 on the front side of the front end portion of the optical fiber fixing portion 14c
  • a rear end portion 14e the portion of the resin joint 14 on the rear side of the rear end portion of the optical fiber fixing portion 14c
  • a fitting portion 14f having a concave groove shape which is substantially triangular in cross section is formed.
  • a plurality (two in the present embodiment) of holder insertion areas 14g and optical fiber gripping areas 14i are provided corresponding to the number of optical fibers 13 to be fixed to the optical connector 10.
  • a positioning portion 14j is provided at the boundary between the holder insertion area 14g and the optical fiber gripping area 14i.
  • the inner diameter of the holder insertion area 14 g is configured to be substantially the same as the outer diameter of the holder 11.
  • the inner diameter of the jacket insertion area 14 h is configured to be substantially the same as the outer diameter of the jacket 16.
  • the inner diameter of the optical fiber gripping area 14i is configured to be substantially the same as the outer diameter of the optical fiber 13.
  • a part of the optical fiber gripping area 14i is opened toward the optical fiber fixing portion 14c.
  • the mating portion 14 f of the resin joint 14 is an optical connector inserted into the device 100 by fitting with the convex fitting portion 105 a provided on the inner periphery of the opening 105 in the device 100 (see FIG. 1). 10 is provided to prevent misalignment and to improve the connection between the optical connector 10 and the device 100. Also, by inserting the optical connector 10 into the device 100 until the fitted portion 14 f and the fitting portion 105 a are fitted, the optical connector 10 can be always positioned at a predetermined position in the case 102. .
  • the fixed binding member 15 has a substantially U-shaped cross section in the longitudinal direction, that is, a fixed portion 15a having a substantially U shape as viewed from the side of the fixed binding member 15, and a substantially U-shaped cross section in the short direction. That is, it is comprised from the binding part 15b, 15c which is substantially U-shaped seeing from the front-back direction of the fixed binding member 15. That is, as shown in FIG.
  • the fixing portion 15 a is disposed at the optical fiber fixing portion 14 c of the resin joint 14.
  • the binding portion 15 b covers a part of the top surface, the side surface and the bottom surface of the rear end portion 14 e of the resin joint 14.
  • the binding portion 15 c covers a part of the optical fiber 13 (jacket 16) exposed from the opening 14 b of the resin joint 14.
  • the upper surface of the binding portion 15 b and the binding portion 15 c is connected.
  • the jacket 16 is formed of, for example, an elastic member or a tensile strength fiber, and covers all the optical fibers 13 along the longitudinal direction of the optical fiber 13 exposed in the jacket insertion area 14 h of the resin joint 14 or the opening 14 b.
  • the jacket 16 and the optical fiber 13 are not in close contact with each other, and are mounted with a gap. Therefore, even if the jacket 16 is pulled, no force is applied to the optical fiber 13, and disconnection of the optical fiber 13 can be prevented.
  • FIG. 5 is a side view of the optical collimator 10a according to the first embodiment of the present invention.
  • 6 is a cross-sectional view taken along the line AA in FIG.
  • the holder 11 is formed of, for example, a metal material such as stainless steel. In particular, in terms of workability, the holder 11 is preferably formed of austenitic stainless steel. As shown in FIG. 6, an opening 11 b is provided at an end of the holder 11 on the side of the collimator lens 12. Inside the opening 11b, a housing 11c for housing the collimator lens 12 is provided. In order to prevent the surface of the collimator lens 12 from being damaged, the housing portion 11 c is provided in a size that can receive the entire collimator lens 12 inside, and the collimator lens 12 is configured to be press-fit. Further, a through hole 11 d having a diameter slightly larger than the outer diameter of the optical fiber 13 is provided inside the holder 11.
  • the through hole 11d is in communication with the insertion hole 11a and in communication with the housing portion 11c. Furthermore, the holder 11 is provided with a plurality of depressions 11 e formed by pressing from the outer peripheral portion thereof with a tool or the like. These depressions 11e are provided between the accommodation portion 11c and the through hole 11d, and are used for positioning of the collimator lens 12 and the optical fiber 13 as described later in detail.
  • the collimator lens 12 is formed of, for example, a glass material, and is configured of a ball lens having a spherical shape. As shown in FIG. 6, the collimator lens 12 is disposed to face the tip of the optical fiber 13 inserted into the through hole 11 d in a state of being accommodated in the accommodation portion 11 c of the holder 11.
  • the optical fiber 13 is composed of a core 13a provided through the center thereof, a clad 13b covering the core 13a, and a reinforcing layer 13c covering and reinforcing the clad 13b.
  • the core 13a, the clad 13b and the reinforcing layer 13c are disposed on the same plane. That is, at the end face facing the collimator lens 12, the core 13a, the clad 13b and the reinforcing layer 13c are arranged in line.
  • the optical fiber 13 is inserted into the through hole 11 d through the insertion hole 11 a, and is fixed in a state in which the tip end portion is disposed in the vicinity of the collimator lens 12 so as to face the spherical surface.
  • the optical fiber 13 is made of, for example, a graded index (GI) type optical fiber, and the refractive index changes continuously in a cross section perpendicular to the fiber axis. It is configured.
  • the core 13a and the cladding 13b are made of, for example, a perfluorinated optical resin in which H of CH bond is substituted by F.
  • high-speed and large-capacity communication can be realized by configuring the optical fiber 13 with the all-fluorine-substituted optical resin and configuring with the GI-type optical fiber.
  • the optical collimator 10a according to the first embodiment is provided in the holder 11 for simply positioning the collimator lens 12 and the optical fiber 13 while suppressing an increase in cost.
  • the depression 11e is used. Specifically, positioning is performed by bringing the collimator lens 12 and a part of the optical fiber 13 into contact with the depressed portion 11 e provided in the holder 11, thereby eliminating the need for a configuration such as a spacer for these positioning, and cost The positioning of the collimator lens 12 and the optical fiber 13 can be easily performed while suppressing the rise of the lens.
  • FIG. 7 is within the two-dot chain line B shown in FIG. FIG.
  • a part of the collimator lens 12 abuts on the part facing the collimator lens 12 in the recess 11 e, while the optical fiber 13 is formed on the part facing the optical fiber 13.
  • the cladding 13 b or the reinforcing layer 13 c other than the core 13 a or a part of the cladding 13 b and the reinforcing layer 13 c abuts.
  • the collimator lens 12 and the optical fiber 13 are respectively positioned at predetermined positions of the holder 11 in such a state of contact.
  • the depressed portion 11 e is a plane orthogonal to the insertion direction of the optical fiber 13 (for example, a plane C disposed parallel to the end face of the optical fiber 13 shown in FIG. 7 and passing the center of the depressed portion 11 e ),
  • the angle of the part facing the collimator lens 12 and the angle of the part facing the optical fiber 13 are provided at different angles.
  • Such a recess 11 e is provided, for example, by pressing using a tapered tool having a different shape of the tip.
  • the depression 11e differs in angle between the part facing the collimator lens 12 and the part facing the optical fiber 13 with respect to the central axis at the time of the press processing. By setting the angle, it is possible to effectively position the collimator lens 12 and the optical fiber 13 having different shapes.
  • a plurality (three in the present embodiment) of such depressions 11 e are provided on the same circumference of the holder 11.
  • the formation of the depressions 11e on the same circumference can be considered, for example, by simultaneously pressing from the outer periphery of the holder 11 with tools having different tip shapes as described above. Since the collimator lens 12 and the optical fiber 13 can be brought into contact with each other at a plurality of positions by providing a plurality of depressions 11 e on the same circumference in this manner, the collimator lens 12 and the optical fiber 13 can be more accurately. It becomes possible to perform positioning.
  • the portion of the recess 11 e facing the collimator lens 12 constitutes an inclined surface 11 e 1 .
  • the inclined surface 11e 1 is a plan (e.g., orthogonal to the insertion direction of the optical fiber 13 shown by the arrows in FIG. 7, arranged parallel to the end face of the optical fiber 13 shown in FIG. 7, passes through the base end portion of the recess 11e It is provided so that angle (theta) 1 with respect to the plane D) to become may become 0 degree or more and 45 degrees or less.
  • the optical fiber 13 in the collimator lens 12 Since positioning can be performed while supporting part of the side, the positional accuracy of the collimator lens 12 can be enhanced.
  • the portion of the recess 11 e facing the optical fiber 13 constitutes an inclined surface 11 e 2 .
  • the inclined surface 11e 2 is a plane perpendicular to the insertion direction of the optical fiber 13 (e.g., a plane E which is parallel to the end face of the optical fiber 13 shown in FIG. 7) the angle theta 2 is 20 ° or less 0 ° or more with respect to It is provided as.
  • the core 13a, the cladding 13b, and the reinforcing layer 13c are on the same plane as described above.
  • the optical collimator 10a positioning is performed such that a part of the collimator lens 12 and a part of the optical fiber 13 are brought into contact with the recess 11e provided in the holder 11. Since the collimator lens 12 and the optical fiber 13 can be positioned with reference to the depression 11e, the working efficiency can be improved as compared with the case where another component is inserted into the holder 11 as in the prior art. It is possible to easily position the collimator lens 12 and the optical fiber 13 while suppressing an increase in cost.
  • FIGS. 8 to 10 are explanatory views sequentially showing an assembling process of the optical connector 10.
  • the assembling step of the optical connector 10 includes a step (a) of pressing the holder 11 into the resin joint 14, a step (b) of inserting the optical fiber 13, a step (c) of mounting the jacket 16, and a fixed binding member 15. Mounting step (d). Each step will be described in detail below.
  • Step (a) First, as shown in FIG. 8, the holder 11 is press-fit through the insertion hole 14 a of the resin joint 14.
  • the collimator lens 12 is positioned and housed in the housing portion 11c of the holder 11 in a state of being in contact with the depressed portion 11e.
  • the holder 11 press-fitted from the insertion hole 14a comes to rest when the insertion hole 11a of the holder 11 abuts on the positioning portion 14j. At this time, the holder 11 is positioned at a predetermined position.
  • Step (b) Next, as shown in FIG. 9, the optical fiber 13 is inserted from the opening 14 b of the resin joint 14.
  • the optical fiber 13 is guided by the inner diameter of the resin joint 14 to reach the insertion hole 11a of the holder 11, and is guided by the inner diameter of the holder 11 to reach the recess 11e.
  • the insertion operation is completed.
  • the optical fiber 13 is positioned at a predetermined position.
  • the optical fiber 13 is loaded in the optical fiber holding area 14i, the optical fiber 13 is disposed so that a part thereof is exposed at the bottom of the optical fiber fixing portion 14c.
  • the jacket 16 is mounted so as to cover the entire optical fiber 13 along the longitudinal direction of the optical fiber 13 exposed from the inside of the jacket insertion area 14h of the resin joint 14 or the opening 14b. However, in FIG. 10, a part of the jacket 16 is omitted.
  • the jacket 16 of the part loaded in the holder 11 and the optical fiber holding area 14i is peeled off before the step (b) of inserting the optical fiber 13
  • the optical fiber 13 is exposed.
  • the fixing portion 15a of the fixing binding member 15 is disposed in the optical fiber fixing portion 14c of the resin joint 14, and the binding portion 15b and the binding portion 15c are exposed from the rear end 14e and the opening 14b of the resin joint 14
  • the fixing portion 15a fixes the optical fiber 13 by being pressed from above the optical fiber fixing portion 14c. That is, the plurality of optical fibers 13 loaded in the optical fiber gripping area 14i and disposed so that their heads come out at the bottom of the optical fiber fixing portion 14c are held down from above by the fixing portion 15a and fixed at one time .
  • the binding portion 15 b and the binding portion 15 c are crimped to fix the resin joint 14 and the jacket 16 by pressing the both side surfaces thereof. This configuration makes it possible to further increase the connection strength between the resin joint 14 and the optical fiber 13.
  • the optical connector 10 As described above, in the optical connector 10 according to the first embodiment, at least one of the collimator lens 12 and the optical fiber 13 is brought into contact with the depressed portion 11e provided in the holder 11 for positioning. Therefore, since the collimator lens 12 and / or the optical fiber 13 can be positioned with reference to the recess 11e, the working efficiency can be improved as compared to the case where another component is inserted into the holding member as in the related art. It is possible to easily position the collimator lens 12 and the optical fiber 13 while suppressing an increase in cost. Further, the optical fiber fixing portion 14 c for housing the fixing portion 15 a of the fixing binding member 15 is formed on the optical fiber holding area 14 i of the resin joint 14 to firmly fix the positioned optical fiber 13. As a result, assembly work can be performed easily with a small number of parts.
  • a partition (spacer portion) is formed for positioning the optical fiber and the collimator lens as in the prior art
  • processing such as cutting on a holding member (holder) made of a metal material or the like.
  • the holding member of the optical connector used in the above-mentioned application since the size is reduced, the processing accuracy of cutting is lowered, and the cost associated with the processing (for example, the cost due to the generation of defective products). The increase is noticeable.
  • the holder 11 of the optical connector 10 according to the first embodiment, plastic working is performed instead of forming the partition (spacer portion) by performing cutting on the holder 11 as a holding member.
  • the partition spacer portion
  • the cost involved in the processing can be significantly reduced.
  • the optical fiber grip formed in the resin joint 14 is The optical fiber 13 is fixed by the fixing portion 15 a of the fixing binding member 15 accommodated in the region 14 i and the optical fiber fixing portion 14 c. In this case, the optical fiber 13 is firmly fixed in the positioned state. Therefore, in an application for performing large-capacity communication between devices or within devices using optical fiber 13, the positional relationship between optical fiber 13 and collimator lens 12 is maintained even when insertion and removal are repeated. be able to.
  • the collimator lens 12 and the optical fiber 13 are positioned by bringing a part of the collimator lens 12 and a part of the optical fiber 13 into contact with the recess 11 e provided in the holder 11 doing.
  • the method of positioning the collimator lens 12 and the optical fiber 13 is not limited to this, and can be appropriately changed. For example, instead of bringing both the collimator lens 12 and the optical fiber 13 into contact with the depression 11 e, one of the collimator lens 12 or the optical fiber 13 is brought into contact, and the other is the holder 11 other than the depression 11 e. You may make it position by a part.
  • the portion for positioning the other is designed in a fixed positional relationship with the recess 11e. That is, in the optical connector 10 according to the present invention, the idea of bringing one of the collimator lens 12 or the optical fiber 13 into contact with the depressed portion 11 e is also included.
  • FIG. 11 is an external perspective view of the optical connector 20 according to the second embodiment.
  • FIG. 12 is a side sectional view of the optical connector 20 according to the second embodiment.
  • the same reference numerals are given to the same components as those of the optical connector 10 according to the first embodiment, and the description thereof will be omitted.
  • the fixing member 25 is a flat portion 25a having a rectangular shape in a top view and disposed on the upper surface of the resin joint 14, and a substantially rectangular convex portion disposed in the optical fiber fixing portion 14c. And 25b. As described above, since the fixing member 25 has a simple structure, it can be manufactured at low cost.
  • the convex portion 25 b of the fixing member 25 is disposed in the optical fiber fixing portion 14 c of the resin joint 14.
  • the fixing member 25 fixes the optical fiber 13 by pressing the flat portion 25 a from above. That is, the plurality of optical fibers 13 loaded in the optical fiber gripping area 14i and arranged so that a part thereof is exposed at the bottom of the optical fiber fixing portion 14c are pressed from above by the convex portion 25b of the fixing member 25. It is fixed at once.
  • the optical fiber grip formed in the resin joint 14 is The optical fiber 13 is fixed by the region 14i and the convex portion 25b of the fixing member 25 accommodated in the optical fiber fixing portion 14c. In this case, the optical fiber 13 is firmly fixed in the positioned state. Therefore, in an application for performing large-capacity communication between devices or within devices using optical fiber 13, the positional relationship between optical fiber 13 and collimator lens 12 is maintained even when insertion and removal are repeated. be able to.
  • the plastic optical fiber is described as an example of the optical fiber 13.
  • the optical fiber 13 applied to the optical connector 10 (20) according to the above embodiment is limited to the plastic optical fiber It is not something to be done. For example, it is also possible to apply glass fiber.

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

Abstract

La présente invention a pour objet un connecteur optique qui permet d'aligner avec une grande précision une lentille de collimateur et une fibre optique sans qu'un procédé d'assemblage compliqué ne soit nécessaire. Un connecteur optique comprend : un élément de retenue métallique (11), une partie boîtier étant formée sur une extrémité de cet élément et contenant une lentille de collimateur (12), et un trou d'introduction étant pratiqué sur l'autre extrémité et conçu pour qu'une fibre optique (13) y soit introduite ; ainsi qu'un joint en résine (14) qui comporte en outre un trou débouchant, un premier trou d'introduction (14a) étant pratiqué sur une extrémité de ce trou débouchant et servant à l'introduction de l'élément de retenue (11), un second trou d'introduction étant situé sur l'autre extrémité dudit trou débouchant et destiné à l'introduction de la fibre optique (13), et une région de serrage de fibre optique se trouvant dans une partie du trou débouchant. Au moins une face d'extrémité de la lentille de collimateur (12) ou de la fibre optique (13) est mise en contact avec une partie évidement, qui est située à proximité de la partie boîtier de l'élément de retenue (11), ou est alignée sur cette partie évidement. Une partie d'ancrage de fibre optique (14c) est présente sur la région de serrage de fibre optique dans le joint en résine (14) et contient un élément d'ancrage de fibre optique (15).
PCT/JP2012/059362 2011-04-25 2012-04-05 Connecteur optique WO2012147486A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011096917A JP5743676B2 (ja) 2011-04-25 2011-04-25 光コネクタ
JP2011-096917 2011-04-25

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WO2012147486A1 true WO2012147486A1 (fr) 2012-11-01

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TW (1) TWI530721B (fr)
WO (1) WO2012147486A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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JP2014095807A (ja) * 2012-11-09 2014-05-22 Mitsubishi Pencil Co Ltd 光コネクタ

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JPH0538607U (ja) * 1991-10-23 1993-05-25 日新電機株式会社 ボールレンズコリメータ
JPH07120642A (ja) * 1993-10-21 1995-05-12 Mitsubishi Rayon Co Ltd 光ファイバ式光電スイッチ用アタッチメント
JPH09159867A (ja) * 1995-12-07 1997-06-20 Toray Ind Inc 光コネクターおよびその製造方法
JP2011227201A (ja) * 2010-04-16 2011-11-10 Mitsubishi Pencil Co Ltd 光コリメータ及びこれを用いた光コネクタ、並びに、光コリメータ用保持部材

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Publication number Priority date Publication date Assignee Title
WO2014050194A1 (fr) * 2012-09-25 2014-04-03 三菱鉛筆株式会社 Élément de couplage optique et connecteur optique l'utilisant
JP2014066807A (ja) * 2012-09-25 2014-04-17 Mitsubishi Pencil Co Ltd 光結合部材およびこれを用いた光コネクタ
US9581764B2 (en) 2012-09-25 2017-02-28 Mitsubishi Pencil Company, Limited Optical coupling member and optical connector using the same
JP2014095807A (ja) * 2012-11-09 2014-05-22 Mitsubishi Pencil Co Ltd 光コネクタ

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