Scattered light receiving and transmitting cluster type optical fiber connector

Abstract

A scattered light receiving and transmitting bundling type optical fiber connector comprises an optical fiber sheath assembly internally provided with bundling optical fibers, the two ends of the optical fiber sheath assembly are a light receiving end and a light emitting end respectively, the light receiving end is provided with a light inlet window matched with connecting equipment in a butt joint mode, and the light emitting end is provided with a light outlet window matched with the connecting equipment in a butt joint mode. A single optical fiber is replaced by the bundled optical fiber, the overall hardness of the transmission optical fiber is reduced, the light inlet window and the light outlet window are matched with connecting equipment, and the luminous flux is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical fiber connector technical field, specifically is a scattering light receiving and transmission cluster type optical fiber connector. BACKGROUND

[0002] Scattering light collection and regulation technology has important application prospect in biomedical, optical imaging, optical communication and many other fields. Scattering light carries specific optical information, and the information is transmitted from the light spot to the optical analysis equipment such as spectrometer using optical fiber, so that a certain optical characteristic can be obtained. In the field of optical fiber communication, sensing and spectral analysis, the receiving and transmission of scattering light is one of the key technologies. The traditional scattering light receiving and transmission SMA jumper assembly is completed, and the core diameter of the single optical fiber is 200-1000 mu m, when the core diameter is less than 800 mu m, the light flux often does not meet the requirements, and when the core diameter is greater than 800 mu m, the optical fiber is high in hardness and is not easy to bend, which limits the application scene. The light window of the traditional SMA jumper is connected with the spectrometer in the spectral analysis, and the spectrometer is often a rectangular slit, so that the overall transmission efficiency is not high. The optical fiber of the traditional SMA optical fiber connector is uniformly arranged in the light window, and cannot be well adapted to the special light receiving structure. SUMMARY

[0003] To solve the above technical problems, the utility model provides a kind of scattering light receiving and transmission cluster type optical fiber connector, adopt cluster optical fiber to replace single optical fiber, reduce the overall hardness of transmission optical fiber, and, make light, light window and connecting equipment adapt, improve light flux.

[0004] To achieve the above technical purpose, the technical scheme adopted is: a kind of scattering light receiving and transmission cluster type optical fiber connector, including the optical fiber sheath assembly with cluster optical fiber being installed inside, the two ends of optical fiber sheath assembly are light receiving end and light emitting end respectively, light receiving end has the light window of being adapted to the butt joint of connecting equipment, light emitting end has the light window of being adapted to the butt joint of connecting equipment.

[0005] The optical fiber connector also includes a connecting nut sleeved on the light receiving end and / or the light emitting end.

[0006] The optical fiber sheath assembly is provided with a snap spring for limiting the back-off of the connecting nut.

[0007] The optical fiber sheath assembly is provided with a boss for preventing the connecting nut from falling off the optical fiber sheath assembly.

[0008] The optical fiber connector further comprises a socket, the socket is provided with a socket hole for inserting the light receiving end and / or the light emitting end, one end of the socket is provided with a threaded structure matched with the connecting nut, and the other end of the socket is a connecting structure matched with the connecting device.

[0009] The socket hole of the socket is matched with the light receiving end or the light emitting end.

[0010] The socket and the light emitting end are provided with matched key grooves and positioning keys.

[0011] The connecting structure is one of an SMA interface, an FC interface, an LC interface, an SC interface, an ST interface and an MT interface.

[0012] The outer side of the socket is provided with a baffle for conveniently applying force to the socket and limiting the depth of the socket inserted into the connecting device.

[0013] The end face of the baffle is a polygon.

[0014] The utility model has the advantages of:

[0015] 1. The connector adopts a bundled optical fiber to replace a single optical fiber, realizes information transmission from a light spot to a connecting device, the bundled optical fiber is integrated by a plurality of single optical fibers, has a large receiving range of scattered light, can branch and collect light at a light inlet window, is subjected to average force when being bent, can be bent, has lower overall hardness compared with the hardness of a single optical fiber of the same size, can be used in various scenes and is not limited by scenes, meanwhile, the windows at both ends of the connector are matched with the windows of the connecting device in the plug-in position, and sufficient light flux is ensured.

[0016] 2. The connecting nut is added to the basic connector structure, the plug-in position of the connecting device can be connected through the connecting nut, and the stability of the plug-in position is ensured, and the connecting nut is not easy to fall off.

[0017] 3. The connecting nut is limited in the front and back directions through the added snap spring and boss, that is, the position of the connecting nut is limited, and the use of the connecting nut is not affected.

[0018] 4. In order to match the connecting structure of the plug-in position of different connecting devices, different types of sockets are added to the connecting nut, diversified adaptation is realized, the connection is simple, the process cost is low, the fastening property is good, the light receiving end and the light emitting end are protected, the connecting structure is used for fastening connection with the connecting device, and the plug-in stability function is realized.

[0019] 5. The socket is matched with the light receiving end or the light emitting end, which ensures the quick insertion of the light receiving end or the light emitting end and prevents the light receiving end or the light emitting end from shaking and being damaged.

[0020] 6. The non-rotation part may change the position under the vibration and impact, which affects the normal operation of the equipment. The matched key groove and positioning key prevent the rotation of the light emitting end and prevent the insertion error. In the equipment which needs to be accurately controlled, the accidental rotation of the part may affect the operation accuracy and the product quality.

[0021] 7. The baffle is convenient for fixing the socket for installation and can be used as the limiting part when the connection equipment is inserted. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 Fig. 1 is a structural schematic diagram of the embodiment 1 of the utility model;

[0023] Figure 2 Fig. 2 is a structural schematic diagram of the embodiment 2 (1) of the utility model;

[0024] Figure 3 Fig. 3 is a structural schematic diagram of the embodiment 2 (2) of the utility model;

[0025] Figure 4 Fig. 4 is a structural schematic diagram of the embodiment 2 (3) of the utility model;

[0026] Figure 5 Fig. 5 is a structural schematic diagram of the light receiving end of the utility model; Figure 4

[0027] Figure 6 Fig. 6 is a structural schematic diagram of the light emitting end of the utility model; Figure 4

[0028] Figure 7 Fig. 7 is a structural schematic diagram of the embodiment 3 (1) of the utility model;

[0029] Figure 8 Fig. 8 is a structural schematic diagram of the embodiment 3 (2) of the utility model;

[0030] Figure 9 Fig. 9 is a structural schematic diagram of the embodiment 3 (3) of the utility model;

[0031] Figure 10 Fig. 10 is a structural schematic diagram of the embodiment 4 of the utility model;

[0032] Figure 11 Fig. 11 is a schematic diagram of the bundled optical fiber of the utility model;

[0033] ​​Figure 12 Figure 1 is a schematic view of the socket of the present application;

[0034] Reference signs:

[0035] 1, bundle optical fiber;

[0036] 2, optical fiber protection assembly, 21, optical receiving end, 22, optical transmitting end, 201, outer sheath, 202, connecting sleeve, 203, light-in plug, 204, light-out plug, 203-1, light-in window, 204-1, light-out window;

[0037] 3, connecting nut;

[0038] 4, socket, 401, connecting structure, 402, baffle, 403, plug hole;

[0039] 5, key groove, 6, positioning key, 7, clamping spring, 8, boss. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical scheme and advantages of the present application more clear and understandable, the present application will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and not to limit the present application.

[0041] It should be noted that the diagrams provided in the present embodiment only illustrate the basic concept of the present application in a schematic manner, and only the components related to the present application are shown in the diagrams, not drawn according to the number, shape and size of the components in actual implementation. The shape, number and proportion of each component in actual implementation can be changed arbitrarily, and the component layout pattern can also be more complex.

[0042] The structure, proportion, size, etc. shown in the drawings attached to the present specification are only used to cooperate with the content disclosed in the specification, for understanding and reading by those skilled in the art, and do not define the limiting conditions for the implementation of the present application, so they do not have substantial technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that the present application can produce, should still fall within the scope of the technical content disclosed by the present application.

[0043] The orientations or positional relationships indicated by the terms such as "upper", "lower", "left", "right", "intermediate", "longitudinal", "transverse", "horizontal", "inner", "outer", "radial", "circumferential", etc. in the present specification are based on the orientations or positional relationships shown in the drawings, and are only used to facilitate the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0044] The utility model discloses a connector's specific embodiment 1, a scattering light receiving and transmission cluster type optical fiber connector, including the optical fiber sheath subassembly 2 of installing the cluster optical fiber 1 in the inside, cluster optical fiber 1 installs according to the axis direction of optical fiber sheath subassembly 2, and one end of cluster optical fiber 1 is used to receive scattering light, and the other end is used to send scattering light, as shown in Figure 12 Cluster optical fiber 1 is made of multiple single optical fibers, and branch processing multipoint light collection can be carried out at the light inlet window, so that the light receiving efficiency is improved, when the needle is inserted, the optical fiber at the special-shaped interface is inserted first, then the glue is poured and solidified, and the arrangement is according to the principle of proximity, so that the force borne by each optical fiber is minimized. When cluster optical fiber 1 is subjected to bending force, multiple small-size optical fibers are actually bent, and compared with a single optical fiber of the same size, the average hardness of the force is low, and the bending can be carried out, so that the cluster optical fiber can be applied to the scene needing bending, and the application range is wider.

[0045] As shown in Figure 1 、 Figure 2 , the two ends of the optical fiber sheath subassembly 2 are respectively a light receiving end 21 and a light emitting end 22, the optical fiber sheath subassembly 2 is usually composed of an outer sheath 201, a connecting sleeve 202, a light inlet needle 203 and a light outlet needle 204, the two ends of the outer sheath 201 are connected with the light inlet needle 203 and the light outlet needle 204, the connecting sleeve 202 connects and fixes the needle and the outer sheath 201 together, the light receiving end 21 has a light inlet window 203-1 adapted to be connected with a connecting device, and the light emitting end 22 has a light outlet window 204-1 adapted to be connected with the connecting device, the connecting device connected with the light inlet window 203-1 is usually a light collecting instrument, for example, if the light outlet connecting interface of the light collecting instrument is circular, the cross section of the light inlet window 203-1 is circular, as shown in Figure 5 The connecting device connected with the light outlet window 204-1 is usually a spectrum analyzer or a lighting device, and the light inlet connecting interface of the connecting device is not limited to circular, elliptical, rectangular, triangular, hexagonal, octagonal and the like, the cross section of the light outlet window 204-1 is consistent with the shape of the light inlet connecting interface, so that the light flux entering the light inlet window 203-1 and the spectrum analyzer is sufficient, as shown in Figure 6 The cross section of the light inlet window 203-1 is rectangular.

[0046] The utility model discloses a connector's specific embodiment 2, the difference between this embodiment and the specific embodiment 1 of the utility model of a scattering light receiving and transmission cluster type optical fiber connector as above lies in: the optical fiber connector still includes the connecting nut 3 of setting in the light receiving end 21 and / or the light emitting end 22. As shown in Figure 2 The connecting nut 3 is arranged on the light receiving end 21 in the implementation mode (1); as shown in Figure 3As shown, the embodiment (2) is that the light emitting end 22 is sleeved with the connecting nut 3; as Figure 4 As shown, the embodiment (3) is that the light receiving end 21 and the light emitting end 22 are both sleeved with a connecting nut 3.

[0047] As shown in the embodiment 2, further, the connecting nut 3 is sleeved with the light receiving end 21 and / or the light emitting end 22. Figure 2 、 Figure 3 、 Figure 4 As shown, the fiber optic jacket assembly 2 is provided with a snap spring 7 for limiting the backoff of the connecting nut 3, the backoff direction refers to the center direction of the fiber optic jacket assembly 2, the fiber optic jacket assembly 2 is provided with a boss 8 for preventing the connecting nut 3 from falling off the fiber optic jacket assembly 2, the boss 8 and the snap spring 7 can be used independently or in cooperation.

[0048] The difference between the embodiment 3 of the connector and the above-mentioned embodiment 2 of the scattering light receiving and transmission cluster type optical fiber connector of the utility model lies in that the optical fiber connector further comprises a socket 4, the socket 4 is provided with a plug hole 403 for the insertion of the light receiving end 21 and / or the light emitting end 22, one end of the socket 4 is provided with a threaded structure matched with the connecting nut 3, the other end of the socket 4 is a connecting structure 401 matched with the connecting device, and the socket 4 is fastened on the light receiving end 21 and / or the light emitting end 22 by tightening the connecting nut 3. The setting form has three kinds, the embodiment (1) as shown in the figure, the light receiving end 21 is sleeved with the socket 4 connected with the connecting nut 3, the embodiment (2) as shown in the figure, the light emitting end 22 is sleeved with the socket 4 connected with the connecting nut 3, and the embodiment (3) as shown in the figure, the light receiving end 21 and the light emitting end 22 are both sleeved with the socket 4 connected with the connecting nut 3. Figure 7 Figure 8 Figure 9

[0049] Further, on the basis of the embodiment 3, the plug hole 403 of the socket 4 is in clearance fit with the light receiving end 21 or the light emitting end 22, and the structure is stable and prevents the light receiving end 21 or the light emitting end 22 from shaking.

[0050] Further, as shown in the figure, Figure 6 、 Figure 9 、 Figure 11 The socket 4 and the light emitting end 22 are provided with a matched key groove 5 and positioning key 6, the rotation between the socket 4 and the light emitting end 22 is prevented, and the effect of preventing misinsertion is achieved, in order to facilitate the key groove forming, the optimal scheme is that the key groove 5 is arranged on the outer surface of the light emitting end 22, that is, on the light emitting pin 204, and the positioning key 6 is arranged on the inner surface of the socket 4.

[0051] ​​​Further, the connecting structure 401 is one of SMA interface, FC interface, LC interface, SC interface, ST interface, and MT interface, for example, as shown in Figure 11 The socket is an SMA-905 socket, and the light inlet window and the light outlet window are connected by screw fastening.

[0052] The difference between the embodiment 4 of the connector and the embodiment 3 of the scattering light receiving and transmitting bundled optical fiber connector of the utility model lies in that: the outside of the socket 4 is provided with a baffle 402 for conveniently applying force to the socket 4 and limiting the depth of the socket 4 inserted into the connecting device.

[0053] Further, the end face of the baffle 402 is polygonal, and the shape of the baffle 402 is similar to that of a nut, which is convenient for installation and disassembly.

[0054] The above is only the preferred example of the utility model, and is not used for limiting or defining the utility model. For the researchers or technicians in the field, the utility model can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope declared by the utility model.

Claims

1. A scattered light receiving and transmitting bundled fiber optic connector, characterized by: The optical fiber connector comprises an optical fiber sheath assembly (2) with a bundled optical fiber (1) installed inside, two ends of the optical fiber sheath assembly (2) are an optical receiving end (21) and an optical emitting end (22), the optical receiving end (21) has an optical inlet window (203-1) adapted to be connected with a connecting device, and the optical emitting end (22) has an optical outlet window (204-1) adapted to be connected with the connecting device.

2. A scattered light receiving and transmitting bundled fiber optic connector as in claim 1, wherein: The optical fiber connector further comprises a connecting nut (3) sleeved on the optical receiving end (21) and / or the optical emitting end (22).

3. A scattered light receiving and transmitting bundled fiber optic connector as in claim 2, wherein: The optical fiber sheath assembly (2) is provided with a snap spring (7) for limiting the backoff of the connecting nut (3).

4. A scattered light receiving and transmitting bundled fiber optic connector as in claim 2, wherein: The optical fiber sheath assembly (2) is provided with a boss (8) for preventing the connecting nut (3) from falling off the optical fiber sheath assembly (2).

5. A scattered light receiving and transmitting bundled fiber optic connector as claimed in any one of claims 2-4, characterized in that: The optical fiber connector further comprises a socket (4) provided with a socket hole (403) for inserting the optical receiving end (21) and / or the optical emitting end (22), one end of the socket (4) is provided with a threaded structure matched with the connecting nut (3), the other end of the socket (4) is a connecting structure (401) matched with the connecting device, and the socket (4) is fastened on the optical receiving end (21) and / or the optical emitting end (22) by tightening the connecting nut (3).

6. A scattered light receiving and transmitting bundled fiber optic connector as in claim 5, wherein: The socket hole (403) of the socket (4) is matched with the optical receiving end (21) or the optical emitting end (22) with a gap.

7. A scattered light receiving and transmitting bundled fiber optic connector as described in claim 5, wherein: The socket (4) and the optical emitting end (22) are provided with a matched key groove (5) and a positioning key (6).

8. A scattered light receiving and transmitting bundled fiber optic connector as described in claim 5, wherein: The connecting structure (401) is one of an SMA interface, an FC interface, an LC interface, an SC interface, an ST interface and an MT interface.

9. A scattered light receiving and transmitting bundled fiber optic connector as described in claim 5, wherein: The socket (4) is provided with a baffle (402) on the outside for facilitating the application of force to the socket (4) and limiting the depth of the socket (4) inserted into the connecting device.

10. A scattered light receiving and transmitting bundled fiber optic connector as in claim 9, wherein: The end surface of the baffle (402) is polygonal.

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