CN215575777U - Optical fiber collimator - Google Patents

Abstract

The utility model belongs to the technical field of fiber communication technique and specifically relates to a fiber collimator is related to, it includes first sleeve, set up in the first sleeve and one end extendible second sleeve outside first sleeve, set up in collimating lens, the rotation cover in first sleeve one end are located retaining member on the first sleeve other end and set up in fiber body in the second sleeve, the second sleeve include the stack shell and with the stack shell is close to a plurality of elastic clamping piece of retaining member one end fixed connection, and is a plurality of the lateral wall of clamping piece has certain tapering, and is a plurality of the one end extendible of clamping piece is outside first sleeve, the one end inside wall of retaining member can with the lateral wall looks butt of clamping piece, and works as during the retaining member locking, and is a plurality of the optical fiber body can be pressed from both sides to the clamping piece. The application has the effects of simple assembly, convenient replacement and high utilization rate.

Description

Optical fiber collimator

Technical Field

The application relates to the field of optical fiber communication technology, in particular to an optical fiber collimator.

Background

The optical fiber collimator is formed by accurately positioning a tail fiber and a lens. The light source can convert transmission light in an optical fiber into collimated light (parallel light) or couple external parallel light (approximate parallel) into a single-mode optical fiber, and the light source can convert a light beam with a larger divergence angle (small beam waist) into a light beam with a smaller divergence angle (large beam waist) through a lens, so that the light beam can be coupled into other optical devices with lower loss.

The components of the existing light collimator are fixedly connected together through glue, when the glue of the connector of the light collimator is aged or damaged and needs to be replaced, the whole light collimator needs to be abandoned, certain difficulty is brought to maintenance and replacement, and the phenomenon of waste is also caused.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned technical shortcomings, the present application provides an optical fiber collimator.

The optical fiber collimator provided by the application adopts the following technical scheme:

the utility model provides an optical fiber collimator, include first sleeve, set up in the first sleeve and one end extendible to the outer second sleeve of first sleeve, set up in collimating lens, the rotation cover in first sleeve one end are located retaining member on the first sleeve other end and set up in optic fibre body in the second sleeve, the second sleeve include the stack shell and with the stack shell is close to a plurality of elasticity clamping piece of retaining member one end fixed connection, and is a plurality of the lateral wall of clamping piece has certain tapering, and is a plurality of the one end extendible of clamping piece is outside the first sleeve, the one end inside wall of retaining member can with the lateral wall looks butt of clamping piece, and works as when the retaining member locks, and is a plurality of but the optic fibre body is pressed from both sides to the clamping piece.

Preferably, the barrel body is provided with a first through hole matched with the optical fiber body, and a tapered groove is formed at the position, close to the opening of the clamping piece, of the first through hole.

Preferably, an optical fiber limiting part used for positioning the optical fiber body is arranged on the inner side wall of one end, close to the collimating lens, of the cylinder body.

Preferably, one end of the second sleeve, which is located in the first sleeve, is provided with a first inclined plane, one end of the collimating lens, which faces the second sleeve, is provided with a second inclined plane, the inclined angles of the first inclined plane and the second inclined plane are the same, and the first inclined plane and the second inclined plane are arranged at a distance.

Preferably, the first sleeve is fixedly connected with a sleeve limiting part on the inner side wall between the first inclined plane and the second inclined plane.

Preferably, the second sleeve is slidably connected with the first sleeve.

Preferably, the first sleeve, the second sleeve, the locking member and the optical fiber body are coaxially arranged.

Preferably, a flange is fixedly connected to the outer side wall of the first sleeve.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the optical fiber collimator is characterized in that the first sleeve, the second sleeve and the locking piece are matched with each other, so that the second sleeve can be arranged in the first sleeve in a penetrating mode, when the optical fiber body is installed, the optical fiber body can be clamped only by inserting the end of the optical fiber body into the second sleeve and screwing the locking piece, and the plurality of clamping pieces can clamp the optical fiber body, and further the optical fiber body is fixed on the optical fiber collimator;

2. through setting up the structure that the spacing portion of taper groove, first via hole, sleeve and the spacing portion of optic fibre mutually supported, can make the axiality that improves optic fibre body, first sleeve and collimating lens three, and then improve optic fibre collimator's assembly precision and performance.

Drawings

Fig. 1 is an overall sectional structural schematic diagram of an embodiment of the present application.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Description of reference numerals: 1. a first sleeve; 2. a second sleeve; 21. a barrel body; 22. a clamping piece; 3. a collimating lens; 4. a locking member; 5. an optical fiber body; 6. a first via hole; 7. a conical groove; 8. an optical fiber limiting part; 9. a first inclined plane; 10. a second inclined plane; 11. a sleeve limiting part; 12. and (4) a flange.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, a plurality of means is two or more, and greater than, less than, more than, etc. are understood as excluding the present number, and greater than, less than, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless explicitly defined otherwise, the terms "disposed," "mounted," "connected," and the like are to be understood in a broad sense, and for example, may be directly connected or indirectly connected through an intermediate; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be a mechanical connection; either as communication within the two elements or as an interactive relationship of the two elements. The specific meaning of the above-mentioned words in the present invention can be reasonably determined by those skilled in the art in combination with the detailed contents of the technical solutions.

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses an optical fiber collimator. Referring to fig. 1, the optical fiber collimator includes a first sleeve 1, a second sleeve 2, a collimating lens 3, a locking member 4 and an optical fiber body 5, wherein the first sleeve 1, the second sleeve 2 is cylindrical, the second sleeve 2 is composed of a barrel body 21 and a plurality of clamping pieces 22 fixedly connected with one end of the barrel body 21, and the outer side walls of the four clamping pieces 22 are all provided with a taper of a certain size, in this embodiment, the collimating lens 3 is a spherical lens, the barrel body 21 and the clamping pieces 22 are formed by plastic integrated molding with certain elastic deformation capability, and the clamping pieces 22 are provided with four in total, the four clamping pieces 22 are evenly distributed along the circumferential direction of the end face of the barrel body 21, and the taper of the outer side walls of the four clamping pieces 22 is set to be 3 °.

The second sleeve 2 is slidably disposed in the first sleeve 1, the barrel 21 is disposed in the first sleeve 1, one end of the four clamping pieces 22 connected to the barrel 21 is also disposed in the first sleeve 1, and one end of the four clamping pieces 22 away from the barrel 21 extends out of the first sleeve 1. Collimating lens 3 sets up in the one end that tight piece 22 was kept away from to first sleeve 1, the one end periphery side that collimating lens 3 was kept away from to first sleeve 1 is provided with the external screw thread, the second via hole has been seted up on the terminal surface of retaining member 4, retaining member 4 accessible external screw thread and first sleeve 1 threaded connection, and when retaining member 4 locked on first sleeve 1, the lateral wall of second via hole can press from both sides the lateral wall looks butt of piece 22 with four, at this moment, four press from both sides tight piece 22 and take place elastic deformation to the direction that is close to optic fibre body 5, make the ectoderm that the inside wall of four tight pieces 22 of pressing from both sides can press from both sides tight optic fibre body 5, and then be fixed in second sleeve 2 with optic fibre body 5.

Referring to fig. 1 and 2, a first inclined plane 9 is disposed at one end of the barrel 21 close to the collimating lens 3, a second inclined plane 10 is disposed at one end of the collimating lens 3 facing the barrel 21, an inclination angle of the second inclined plane 10 is the same as that of the first inclined plane 9, and the second inclined plane 10 is spaced from the first inclined plane 9.

Referring to fig. 1 and 2, set up on the stack shell 21 and supply optical fiber body 5 to wear to establish and with the first via hole 6 of optical fiber body 5 external diameter looks adaptation, improve optical collimator's assembly precision when for convenient optical fiber body 5 installation, with first sleeve 1, stack shell 21, first via hole 6 and retaining member 4 coaxial setting to set up taper groove 7 at first via hole 6 near the opening part of pressing from both sides tight piece 22, make things convenient for optical fiber body 5 to insert and establish into first via hole 6. Simultaneously, barrel 21 is located fixedly connected with the spacing portion 8 of optic fibre on the one end inside wall that first via hole 6 is close to collimating lens 3, and first sleeve 1 is located the fixed spacing portion 11 of sleeve that is provided with on the inside wall between first inclined plane 9 and the second inclined plane 10, and in this embodiment, the spacing portion 8 of optic fibre and the spacing portion 11 of sleeve are the ring, and the spacing portion 8 of optic fibre only with the exocuticle lateral wall butt of optic fibre body 5. Therefore, when the optical fiber body 5 is connected with the optical fiber collimator, the barrel body 21 can be abutted against the sleeve limiting part 11, one end of the optical fiber body 5 can be abutted against the optical fiber limiting part 8, the installation positions of the second sleeve 2 and the optical fiber body 5 are relatively fixed, and the assembly precision of the optical fiber collimator can be improved. In addition, a flange 12 is fixedly connected to the outer side wall of the first sleeve 1, so as to facilitate the fixed installation of the optical fiber collimator.

The implementation principle of the optical fiber collimator in the embodiment of the application is as follows: through setting up first sleeve 1, barrel body 21, retaining member 4 and four structure of pressing from both sides tight piece 22 and mutually supporting, make 5 cocoa dismantlements of optic fibre body install in second sleeve 2, compare with the form that adopts glue bonding to fix, the fiber collimator that this embodiment provided only needs to pass through elasticity retaining member 4, alright realize the fibre body 5 and be connected with dismantling between the fiber collimator, the fiber collimator that has avoided bringing because of glue is ageing damages or the phenomenon of precision reduction, fiber collimator's utilization ratio has also been improved simultaneously.

Simultaneously, through setting up the spacing portion 8 of optic fibre and the spacing portion 11 of sleeve to make stack shell 21, first sleeve 1, first via hole 6 and the coaxial setting of retaining member 4, can improve the installation accuracy of second sleeve 2 and optical fiber body 5, and then improve optical collimator's assembly accuracy, with improvement optical collimator's practicality.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. A fiber optic collimator, characterized by: the optical fiber connector comprises a first sleeve (1), a second sleeve (2) which is arranged in the first sleeve (1) and one end of which can extend out of the first sleeve (1), a collimating lens (3) which is arranged in one end of the first sleeve (1), a locking member (4) which is rotatably sleeved on the other end of the first sleeve (1) and an optical fiber body (5) which is arranged in the second sleeve (2), wherein the second sleeve (2) comprises a barrel body (21) and a plurality of elastic clamping sheets (22) which are fixedly connected with one end, close to the locking member (4), of the barrel body (21), the outer side walls of the clamping sheets (22) have certain taper, one end of each clamping sheet (22) can extend out of the first sleeve (1), the inner side wall at one end of the locking member (4) can be abutted against the outer side wall of each clamping sheet (22), and when the locking member (4) is locked, a plurality of the clamping pieces (22) can clamp the optical fiber body (5).

2. A fiber optic collimator according to claim 1 in which: the optical fiber connector is characterized in that a first through hole (6) matched with the optical fiber body (5) is formed in the barrel body (21), and a conical groove (7) is formed in the position, close to the opening of the clamping piece (22), of the first through hole (6).

3. A fiber optic collimator according to claim 1 in which: and an optical fiber limiting part (8) for positioning the optical fiber body (5) is arranged on the inner side wall of one end of the barrel body (21) close to the collimating lens (3).

4. A fiber optic collimator according to claim 1 in which: one end of the second sleeve (2) located in the first sleeve (1) is provided with a first inclined plane (9), one end of the collimating lens (3) facing the second sleeve (2) is provided with a second inclined plane (10), the inclined angles of the first inclined plane (9) and the second inclined plane (10) are the same, and the first inclined plane (9) and the second inclined plane (10) are arranged at intervals.

5. A fiber optic collimator according to claim 4 in which: the first sleeve (1) is fixedly connected with a sleeve limiting part (11) on the inner side wall between the first inclined plane (9) and the second inclined plane (10).

6. A fiber optic collimator according to claim 1 in which: the second sleeve (2) is connected with the first sleeve (1) in a sliding mode.

7. A fiber optic collimator according to claim 1 in which: the optical fiber connector comprises a first sleeve (1), a second sleeve (2), a locking piece (4) and an optical fiber body (5) which are coaxially arranged.

8. A fiber optic collimator according to claim 1 in which: the outer side wall of the first sleeve (1) is fixedly connected with a flange (12).

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