CN214375399U

CN214375399U - Flange type unbiased collimator and coupling structure

Info

Publication number: CN214375399U
Application number: CN202023276681.4U
Authority: CN
Inventors: 金新刚
Original assignee: Jiaxing Xurui Electronic Technology Co ltd
Current assignee: Jiaxing Xurui Electronic Technology Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-10-08
Anticipated expiration: 2030-12-29

Abstract

The utility model provides a flange type does not have inclined to one side collimater and coupling structure. A flange-type unbiased collimator includes a flange sleeve composed of a flange part and a sleeve part, a tail fiber and a lens are arranged in the sleeve, and the lens is close to one side of the flange part. The tail fiber is tightly matched with the flange sleeve and used for fixing the output position of the collimated light beam, so that the output point of the light beam is on the axis of the sleeve, a certain gap is reserved between the periphery of the lens and the inner wall of the sleeve, the position of the lens can be adjusted, the output direction of the collimated light beam is adjusted, the direction of the light beam is completely perpendicular to the end face of the flange, and the lens with the adjusted position is fixed in a bonding mode. The coupling structure can directly align and attach the flange surfaces of the two flange type unbiased collimators, and a window sheet can be added between the flanges; coupling may also be employed with connecting members. The utility model discloses the flange type of various structures does not have inclined to one side collimater and coupling structure all has simple to operate, the strong advantage of interchangeability.

Description

Flange type unbiased collimator and coupling structure

Technical Field

The utility model belongs to the technical field of optical device, in particular to flange type unbiased collimator.

Background

The flange type collimator is generally used for structural design of front end face installation, is of a T-shaped structure, and utilizes a flange face as a fixed installation face. As shown in fig. 1, the sleeve 11 of the flange sleeve 1 is provided with the pigtail 2 and the lens 3' to form a flange type collimator, and since the precision of machining and installation cannot meet the requirement of optical precision, the output direction of the emergent beam always has a certain angle and cannot be completely perpendicular to the flange surface 13 of the flange 12. As shown in fig. 2, the conventional flange collimator generally needs to be adjusted by matching with a two-dimensional adjusting bracket, or an angle is adjusted by using elastic deformation of the O-shaped rubber gasket 4 to change the direction of the flange collimator, so that the two collimators can be aligned and coupled with each other.

In the prior art, an adjusting method is provided, so that a gap is left between the tail fiber and the sleeve, and the position of the tail fiber is adjusted in the radial direction until the emergent light is parallel to the sleeve in the axial direction. However, this direction can only adjust the direction of the light beam, and cannot adjust the light exit position. I.e. it can only be adjusted so that the beam is parallel to the axis of the sleeve and not coaxial with the axis. The coupling effect is still significantly reduced.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a novel flange type unbiased collimator, which can enable the light beam output by the collimator to be completely perpendicular to the flange surface and basically coaxial with the mechanical shaft of the sleeve.

The technical scheme of the utility model be, a flange type does not have inclined to one side collimater, include the flange sleeve pipe that comprises mutually perpendicular's flange portion and sleeve pipe portion, the sleeve pipe embeds there are tail optical fiber and lens, and lens are close to flange portion one side. It is characterized in that the existing flange type unbiased collimator is distinguished: the tail fiber is tightly matched with the flange sleeve and used for fixing the output position of the collimated light beam, the output point of the light beam is on the axis of the sleeve, the radial direction of the lens is smaller than the inner diameter of the sleeve, a certain gap is reserved between the periphery of the lens and the inner wall of the sleeve, the position of the lens can be adjusted, the output direction of the collimated light beam is adjusted, the direction of the light beam is completely vertical to the end face of the flange, and the lens with the adjusted position is fixed in a bonding mode. The axial distance between the lens and the tail fiber can be adjusted by pushing and pulling the tail fiber forwards and backwards and can also be adjusted by moving the lens forwards and backwards. The dimming before the lens is fixed by gluing can adopt the dimming method of the optical device in the prior art.

Furthermore, the lens can be fixed with the sleeve or directly fixed with the end face of the tail fiber. Therefore, the lens of the present invention has a certain gap between the periphery of the lens and the inner wall of the casing, and only has a certain gap between the lens and the inner wall of the casing before the lens is fixed. The lens may be fixed with glue filling the voids.

As the preferred scheme, one end of the sleeve close to the flange is in a step shape with the expanded inner diameter, and one part of the lens is arranged on the step part and is fixed with the step part, so that the design can facilitate the adjustment and the fixation of the lens; it is also possible to place the lens entirely on the stepped portion, so that a larger diameter lens can be used.

Preferably, the sleeve portion of the flange sleeve comprises a plurality of parallel holes forming a plurality of parallel sleeves, forming an array flange type unbiased collimator. The periphery of the flange sleeve can be round, square or other shapes.

The utility model discloses a flange type collimator, output beam expand the facula and just have basically coaxial with the sleeve pipe for the collimation, have reduced the coupling degree of difficulty, can conveniently realize the coupling between the collimator.

The utility model also further provides the coupling structure of above-mentioned flange type collimater, realizes the alignment coupling of collimater.

The coupling structure is characterized in that the flange end faces of two flange type collimators are directly attached and fixed. The flange part can be provided with a guide pin hole and positioned by a guide pin. The fixing mode can be screw joint, adhesive joint or magnetic attraction.

As the preferred scheme, the window sheets with uniform thickness are clamped between the flange end faces of the two flange type collimators and then fixed. The window plate may be any solid optically transparent material, such as a quartz plate. Under the condition that the flange part is positioned by using the guide pin, a smaller window sheet can be adopted to give way to the position of the guide pin hole; or the window sheet is provided with holes corresponding to the positions of the guide pin holes of the flange part.

In some applications, a collimator is fixed to the device, and the collimator coupled thereto needs to be frequently disassembled and assembled, so that the fixed collimator lens is easily contaminated by dust, moisture, and the like. Utilize the utility model discloses a flange type collimator just can be at the collimator flange face of fixed one end on the installation window piece, plays airtight, watertight, dustproof effect.

And the other coupling structure can realize the structure for converting the 90-degree direction of the optical path. The right-angle converter comprises a right-angle connecting plate and a conversion mirror, wherein the right-angle connecting plate is a right angle, and light through holes which correspond to each other and are matched with the flange type collimator are formed in two surfaces of the right-angle connecting plate. The two flange type collimators are respectively fixed with two outer angle surfaces of the right-angle connecting plate, and the conversion mirror is a right-angle prism or a reflecting mirror arranged at 45 degrees and fixed with the inner angle surface of the connecting plate. Thus, the light from the light collimator enters the right-angle prism through the light through hole of the connecting plate, and is reflected by 90 degrees and enters the coupled incident light collimator through the light through hole of the other plate surface of the connecting plate.

Another coupling structure is a connector for coupling. The connector is composed of a connector containing a flange type collimator and a bridging sleeve. The spring in the connector applies radial external thrust to the flange type collimator, the inner diameter of the bridging sleeve is tightly matched with the flange part, when the two connectors are inserted into the bridging sleeve from two sides, the two flange type collimators meet in the middle of the bridging sleeve, and the end faces of the two flange type collimators are attached under elastic pressure. The connector is in threaded connection or clamping connection with the bridging sleeve. The periphery of the bridging sleeve can be provided with a mounting flange so as to be convenient for mounting other components.

One preferable scheme of the coupling structure is that a vertical window sheet is arranged in the middle of the bridging sleeve, and the flange end faces of the two flange-type collimators are respectively attached to the window sheets on two sides.

The utility model discloses the flange type of various structures does not have inclined to one side collimater and coupling structure all has simple to operate, the strong advantage of interchangeability.

Drawings

FIG. 1 is a schematic diagram of a prior art flange-type collimator;

FIG. 2 is a schematic diagram of a coupling structure of a prior art flange-type collimator;

fig. 3 is a schematic diagram of an example 1 of a flange-type unbiased collimator according to the present invention;

fig. 4 is a schematic diagram of an example 2 of a flange-type unbiased collimator according to the present invention;

fig. 5 is a schematic diagram of an example 3 of a flange-type unbiased collimator according to the present invention;

fig. 6a, 6b and 6c are schematic views of an example 4 of a flange-type unbiased collimator according to the present invention, wherein fig. 6a is a view of a flange end face, fig. 6b is a schematic view of fig. 6a taken along a-a section, and fig. 6c is a schematic perspective view;

fig. 7a, 7b and 7c are schematic views of an example 5 of a flange-type unbiased collimator according to the present invention, wherein fig. 7a is a view of a flange end face, fig. 7b is a schematic view of fig. 7a taken along a-a section, and fig. 7c is a schematic perspective view;

fig. 8 is a schematic diagram of an embodiment 1 of a coupling structure of a flange-type unbiased collimator according to the present invention;

fig. 9 is a schematic diagram of an embodiment 2 of a coupling structure of a flange-type unbiased collimator according to the present invention;

fig. 10 is a schematic diagram of an embodiment 3 of a coupling structure of a flange-type unbiased collimator according to the present invention;

fig. 11a, 11b and 11c are schematic diagrams of an embodiment 4 of a flange-type unbiased collimator coupling structure according to the present invention;

fig. 12a, 12b, and 12c are schematic diagrams of a flange-type unbiased collimator coupling structure in accordance with an embodiment 5 of the present invention, where fig. 12a is a perspective schematic diagram of an external structure, fig. 12b is a schematic cross-sectional diagram before installation, and fig. 12c is a schematic cross-sectional diagram after coupling installation.

In the figure: 1-flange sleeve, 11-sleeve part, 12-flange part, 13-flange end face, 14-sleeve step part, 15-guide pin hole, 2-tail fiber, 3-lens, 3' -lens in the prior art, 4-O-shaped gasket in the prior art, 5-window piece, 6-right angle converter, 61-right angle connecting plate, 62-clear hole, 63-connecting plate guide pin hole, 71-right angle prism, 72, reflector, 8-connector, 81-spring, 9-bridge sleeve and 91-mounting flange.

Detailed Description

Flange type unbiased collimator

Example 1

Referring to fig. 3, a flange-type unbiased collimator includes a flange sleeve 1 composed of a flange portion 12 and a sleeve portion 11 perpendicular to each other, the flange portion having guide pin holes 15 near the outer periphery. The sleeve is provided with a pigtail 2 and a lens 3, and the lens 3 is arranged on the side close to the flange part 12. The tail fiber 2 is tightly matched with the inner wall of the sleeve part 11 and is used for fixing the output position of the collimated light beam, so that the output point of the light beam is on the axis of the sleeve; the radial direction of lens 3 is less than the sleeve pipe internal diameter, and lens 3 periphery has certain clearance with the sleeve pipe inner wall, can adjust the position of lens to adjust the output direction of collimated light beam, make the light beam direction perpendicular to flange terminal surface completely, the lens cementing of position regulation is fixed. The axial distance between the lens and the 3 tail fiber 2 can be adjusted by pushing and pulling the tail fiber back and forth or by moving the lens back and forth. The dimming of the lens 3 before the gluing and fixing can be performed by the dimming method of the optical device in the prior art.

The lens 3 may be fixed to the ferrule or directly to the end face of the pigtail 2.

Example 2

As shown in fig. 4, this example differs from embodiment 1 in that: the sleeve portion 11 is formed at one end thereof close to the flange portion 12 in a stepped portion 14 having an enlarged inner diameter, and a part of the lens 3 is placed on and fixed to the stepped portion. This design may facilitate adjustment and fixation of the lens.

Example 3

As shown in fig. 5, this example differs from embodiment 2 in that: the lens 3 is entirely disposed within the stepped portion 14. This allows the use of larger diameter lenses.

Example 4

As shown in fig. 6a, 6b, and 6c, the difference between this embodiment and embodiment 1 is that the sleeve portion 11 of the flange sleeve 1 includes a plurality of parallel holes, forming a plurality of parallel sleeves, and the pigtails 2 and the lenses 3 are disposed in each sleeve in the manner of embodiment 1, forming an array type flange-type unbiased collimator, and the outer circumference of the flange sleeve is circular.

Example 5

As shown in fig. 7a, 7b, and 7c, the difference between this embodiment and embodiment 4 is that the outer periphery of the flange sleeve is rectangular.

(II) coupling structure of flange type unbiased collimator

The utility model discloses still further provide the coupling structure of above-mentioned flange type unbiased collimator, realize the alignment coupling of collimator.

Example 1

As shown in fig. 8, the flange part 12 of the flange-type unbiased collimator is provided with guide pin holes 15, and the two flange end faces 13 of the flange-type unbiased collimator are directly attached to each other by positioning with guide pins. The fixing mode can be screw joint, adhesive joint or magnetic attraction. Because the light beam is subjected to unbiased collimation and is coaxial with the axis of the sleeve, accurate coupling can be realized only by aligning and attaching two flange-type unbiased collimators with the same specification oppositely.

Example 2

As shown in fig. 9, the present embodiment is different from embodiment 1 in that: and a window sheet 5 with uniform thickness is clamped between the flange end faces 13 of the two flange unbiased collimators and then fixed. The window plate may be any solid optically transparent material, such as a quartz plate. The size of the window piece 5 can be set aside the position of the guide pin hole 15.

Example 3

As shown in fig. 10, the present embodiment is different from embodiment 2 in that: a large window sheet 5 is adopted, and holes are formed in the window sheet 5 at the positions, corresponding to the flange part guide pin holes 15, of the window sheet 5.

In some applications, a collimator is fixed to the device, and the collimator coupled thereto needs to be frequently disassembled and assembled, so that the fixed collimator lens is easily contaminated by dust, moisture, and the like. By using the flange type collimator of the embodiment, the window sheet can be arranged on the flange surface of the collimator at one fixed end, so that the effects of air tightness, water tightness and dust prevention are achieved.

Example 4

As shown in fig. 11a, 11b, and 11c, the coupling structure of the present embodiment can realize 90-degree direction conversion of the optical path. The right-angle converter 6 comprises a right-angle connecting plate 61 and a conversion mirror, and light through holes 62 which correspond to each other and are matched with the flange type collimator are formed in two surfaces of the right-angle connecting plate 61. The two flange collimators are respectively fixed with two outer angle surfaces of the right-angle connecting plate 61, and the conversion mirror is fixed with an inner angle surface of the connecting plate. The transfer mirror in fig. 11b is a right-angled prism 71, the two right-angled faces of which abut the two inner-angled faces of the right-angled connecting plate 61, and in fig. 11c the transfer mirror is a 45-degree mirror, the back of which is seen. Thus, the light exiting the light-collimator passes through the clear aperture 62 of the link, is reflected by the conversion mirror through 90 degrees, and enters the coupled-in light-collimator through the clear aperture of the other plate of the right-angle link 61.

The figure of this embodiment, what adopt is that the periphery is above-mentioned the utility model discloses well array flange type collimater of rectangle, in fact also can adopt the utility model discloses in the flange type collimater of any kind of embodiment.

Example 5

Fig. 12a, 12b, and 12c show a coupling structure in which coupling is performed by a connector according to the present embodiment. The connector is formed by a coupling head 8 comprising a flange-type collimator and a bridging sleeve 9. The connectors are provided with springs 81 for applying radial outward thrust to the flange type unbiased collimator, the middle part in the bridging sleeve is provided with a vertical window sheet 5, the inner diameter of the bridging sleeve 9 is tightly matched with the flange part 12, and when the two connectors are inserted into the bridging sleeve 9 from two sides, the flange end surfaces 13 of the two flange type collimators are respectively attached to the window sheets 5 at two sides under elastic pressure. The connector is in threaded connection or clamping connection with the bridging sleeve. A mounting flange 91 is provided around the outer periphery of the bridging sleeve 9 for easy mounting to other components.

Claims

1. The utility model provides a flange type unbiased collimator, includes flange sleeve pipe (1) that constitutes by mutually perpendicular's flange portion (12) and sleeve pipe portion (11), and the sleeve pipe embeds has tail-fiber (2) and lens (3), and lens (3) are close to flange portion (12) one side, characterized by: the tail fiber (2) is tightly matched with the inner wall of the sleeve part (11), the lens (3) is radially smaller than the inner diameter of the sleeve, and the lens (3) is fixed with the inner wall of the sleeve or the end face of the tail fiber (2).

2. A flange-type unbiased collimator as claimed in claim 1, characterized in that: the flange part (12) is provided with a guide pin hole (15) close to the periphery.

3. A flange-type unbiased collimator as claimed in claim 1, wherein: one end of the sleeve part (11) close to the flange part (12) is a step part (14) with an enlarged inner diameter, and part or all of the lens (3) is arranged in the step part (14) and fixed with the step part (14).

4. A flange-type unbiased collimator as claimed in claim 1, wherein: the sleeve part (11) of the flange sleeve (1) comprises a plurality of parallel holes to form a plurality of parallel sleeves and an array type flange type unbiased collimator, and the periphery of the flange sleeve (1) is circular or rectangular.

5. A coupling structure of a flange type unbiased collimator is characterized in that: the flange-type unbiased collimator as claimed in any one of claims 1 to 4, wherein the flange portion (12) of the flange-type unbiased collimator is provided with guide pin holes (15) for positioning by guide pins, and the flange end faces (13) of the two flange-type unbiased collimators are attached and fixed.

6. The coupling structure of a flange-type unbiased collimator as claimed in claim 5, wherein: the two flange type collimators are fixed by screw connection or adhesive connection or magnetic attraction.

7. The coupling structure of a flange-type unbiased collimator as claimed in claim 5, wherein: and a window sheet (5) with uniform thickness is clamped between the flange end faces (13) of the two flange unbiased collimators.

8. A coupling structure of a flange type unbiased collimator is characterized in that: the flange-type unbiased collimator is the flange-type unbiased collimator as claimed in one of claims 1 to 4, having a right angle converter (6) including a right angle link plate (61) and a conversion mirror, the two faces of the right angle link plate (61) having light through holes (62) corresponding to each other and matching with the flange-type collimator; the two flange type collimators are respectively fixed with two outer angle surfaces of the right-angle connecting plate (61), and the conversion mirror is fixed with an inner angle surface of the connecting plate.

9. The coupling structure of a flange-type unbiased collimator as claimed in claim 8, wherein: the conversion mirror is a right-angle prism (71), and two right-angle surfaces of the right-angle prism (71) are fixedly attached to two inner-angle surfaces of the right-angle connecting plate (61).

10. The coupling structure of a flange-type unbiased collimator as claimed in claim 8, wherein: the conversion mirror is a reflecting mirror (72) arranged at 45 degrees and fixed with the inner corner surface of the right-angle connecting plate (61).

11. A coupling structure of a flange type unbiased collimator is characterized in that: the flange type unbiased collimator is the flange type unbiased collimator according to one of claims 1 to 4, and is composed of a connector (8) and a bridging sleeve (9), wherein the connector contains the flange type collimator, a spring (81) is arranged in the connector and applies radial outward thrust to the flange type unbiased collimator, the inner diameter of the bridging sleeve (9) is tightly matched with a flange part (12), the two connectors are inserted into the bridging sleeve (9) from two sides, flange end faces (13) of the two flange type collimators are attached to the middle part in the bridging sleeve (9) under elastic pressure, and the connector is in threaded connection or clamped connection with the bridging sleeve.

12. The coupling structure of a flange-type unbiased collimator as claimed in claim 11, wherein: the middle part in the bridging sleeve (9) is provided with a vertical window sheet (5), and the two flange end faces (13) are respectively attached to the window sheets (5) at two sides.

13. A coupling structure of a flange-type unbiased collimator as claimed in claim 11 or 12, wherein: and a mounting flange (91) is arranged on the periphery of the bridging sleeve (9).