Lens focusing collimator satisfying multiband

Abstract

The utility model discloses a lens focusing collimator satisfying multiband, comprising an adjusting cylinder, one end portion of the adjusting cylinder is bent inwards to form a folding edge, an adjusting groove is arranged on the inner wall of the adjusting cylinder, a lens cone is arranged in the adjusting cylinder, one end of the lens cone is contacted with the folding edge, the other end of the lens cone is provided with a connector, and the connector is connected with the adjusting groove. The outer side of the lens barrel is provided with spiral channel holes which are transversely distributed along the axis of the lens barrel, the supporting barrel is installed in the lens barrel, and a lens is installed in the supporting barrel. According to the utility model, by rotating the adjusting cylinder, the lens rotates in the lens cone and moves leftwards or rightwards to change the initial position of the lens under the combined action of the adjusting groove, the pan head screw and the channel hole, and focusing of the lens can be completed until the position meets the optimal working distance that an emergent light beam is collimated light; therefore, a single lens realizes focusing of light of different wave bands, and can adapt to various optical application requirements.

Description

Technical Field

[0001] The utility model particularly relates to a lens focusing collimator that meets the needs of multiple bands. Background Art

[0002] A collimator is an optical component used to convert divergent light into parallel light (collimated light) or vice versa. Its working principle is to collimate the light beam through a lens, that is, to convert a light beam with a larger divergence angle into a light beam with a smaller divergence angle. Specifically, after the divergent light is emitted from the optical fiber port, it passes through the lens system inside the collimator, and the light is focused and adjusted into a parallel beam. During this process, the focal length of the lens and the distance to the optical fiber port need to be precisely matched to ensure the beam quality. It is an optical component used for input and output in optical fiber communication devices. It is currently widely used in more and more fields such as medicine, communications, and scientific research.

[0003] However, traditional collimators can only meet the collimation function of a single band when in use, and have a small scope of application and need to be improved.

[0004] Therefore, it is necessary to invent a lens focusing collimator that meets multi-band requirements to solve the above problems. Utility Model Content

[0005] (1) Purpose of the utility model

[0006] In order to solve the technical problems existing in the background technology, the utility model proposes a lens focusing collimator that meets the requirements of multiple bands. By rotating the adjustment tube, under the joint action of the adjustment slot, pan head screw and groove hole, the lens will rotate inside the tube while moving left or right to change its initial position until the position meets the optimal working distance for the outgoing light beam to be collimated light. The focusing of the lens can be completed, so that a single lens can realize the focusing of light in different bands and can adapt to the needs of various optical applications.

[0007] (2) Technical solution

[0008] In order to achieve the above object, the utility model provides the following technical solution: a lens focusing collimator that meets multi-band requirements, comprising an adjustment tube, one end of which is bent inward to form a folded edge, and an adjustment groove is provided on the inner wall of the adjustment tube;

[0009] A lens barrel is installed inside the adjusting barrel, one end of the lens barrel contacts the folded edge, and the other end is installed with a connector, and the outer side of the lens barrel is provided with a spiral groove hole distributed transversely along the axis of the lens barrel;

[0010] A support tube is installed inside the lens barrel, and a lens is installed inside the support tube;

[0011] A pan head screw is installed on the outer wall of the support tube, and the top end of the pan head screw passes through the channel hole and extends into the interior of the adjustment slot.

[0012] Preferably, the number of the pan head screws is set to four, and the four pan head screws are evenly distributed on the outside of the support tube in a circular array.

[0013] Preferably, there are four adjustment slots, and the adjustment slots are in a straight line shape as a whole and are distributed along the axis of the adjustment cylinder. The top ends of the four pan head screws extend into the corresponding adjustment slots respectively.

[0014] Preferably, the support tube is provided with different specifications for mounting lenses of different sizes, and the outer diameters of the support tubes of different specifications are all adapted to the inner diameter of the lens barrel.

[0015] Preferably, a positioning groove is provided on the outer side of one end of the lens barrel away from the folded edge.

[0016] Preferably, a ball plunger is installed inside the end of the adjusting cylinder away from the folded edge, and the bottom end of the ball plunger extends into the interior of the positioning groove.

[0017] Preferably, the positioning groove is arranged in an annular shape, the number of the ball plungers is arranged to be two, and the two ball plungers are symmetrically distributed about the center of the regulating cylinder.

[0018] Compared with the prior art, the beneficial effects of the above technical solution of the utility model are:

[0019] 1. The utility model rotates the adjustment tube. Under the limit of the adjustment slot, the pan head screw moves along the opening direction of the channel hole. That is, the pan head screw moves left or right inside the adjustment slot, thereby driving the support tube to move left or right inside the lens barrel, so that the lens rotates in the lens barrel and changes its initial position. When the position of the lens reaches the optimal working distance for the outgoing light beam to be collimated light, the rotation of the adjustment tube is stopped and the ball plunger is locked again to complete the focusing of the lens. This enables a single lens to achieve the focusing of light of different wavelength bands and can adapt to various optical application requirements.

[0020] 2. The utility model is provided with different specifications through the support tube, which can be used to install lenses of different sizes, and can meet the multi-band use of lenses of multiple sizes, with high adaptability and strong flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is an exploded view of the utility model;

[0024] Figure 3 This is a schematic diagram of the connection structure between the adjustment tube and the lens tube of the utility model;

[0025] Figure 4 This is a schematic diagram of the connection structure between the support tube and the lens of the utility model.

[0026] Description of reference numerals:

[0027] 1 Adjusting tube, 2 Folding edge, 3 Adjusting groove, 4 Lens tube, 5 Connecting head, 6 Channel hole, 7 Support tube, 8 Lens, 9 Pan head screw, 10 Positioning groove, 11 Ball plunger. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] The utility model provides Figure 1-4 The multi-band lens focusing collimator shown in the figure comprises an adjustment tube 1, one end of which is bent inward to form a folded edge 2, and an adjustment groove 3 is formed on the inner wall of the adjustment tube 1;

[0030] The lens barrel 4 is installed inside the adjusting barrel 1. One end of the lens barrel 4 contacts the folded edge 2, and the other end is installed with a connector 5. The outer side of the lens barrel 4 is provided with a spiral groove hole 6 distributed transversely along the axis of the lens barrel 4.

[0031] A support tube 7 is installed inside the lens barrel 4, and a lens 8 is installed inside the support tube 7;

[0032] A pan head screw 9 is installed on the outer wall of the support tube 7 , and the top end of the pan head screw 9 passes through the channel hole 6 and extends into the interior of the adjustment slot 3 .

[0033] In one embodiment, the number of the pan head screws 9 is set to four, and the four pan head screws 9 are evenly distributed in a circular array on the outside of the support tube 7. The number of the adjustment slots 3 is set to four, and the adjustment slots 3 are generally in a straight line shape and are distributed along the axial direction of the adjustment tube 1. The top ends of the four pan head screws 9 extend into the corresponding adjustment slots 3 respectively, so that when the adjustment tube 1 rotates, the four pan head screws 9 can move synchronously to the left or right, thereby making the force on the outside of the support tube 7 balanced, which is conducive to stable movement inside the lens barrel 4.

[0034] In one embodiment, the support tube 7 is provided with different specifications for installing lenses 8 of different sizes, and the outer diameters of the support tubes 7 of different specifications are adapted to the inner diameter of the lens barrel 4, so that the collimator can not only meet the multi-band use requirements of a single lens 8, but also adapt to lenses 8 of different sizes, with higher flexibility and adaptability to market demand.

[0035] In one embodiment, a positioning groove 10 is provided on the outer side of the end of the lens barrel 4 away from the folded edge 2, and a ball plunger 11 is installed inside the end of the adjustment tube 1 away from the folded edge 2, and the bottom end of the ball plunger 11 extends into the positioning groove 10. The positioning groove 10 is arranged in a ring shape, and the number of the ball plungers 11 is set to two. The two ball plungers 11 are symmetrically distributed about the center of the adjustment tube 1. When the position of the lens 8 is confirmed, the position of the adjustment tube 1 and the lens barrel 4 can be fixed by screwing into the ball plunger 11, which is convenient and easy to operate.

[0036] The specific implementation method is as follows: when the utility model is in use, the inner wall of the adjustment tube 1 is also provided, and the lens 8 to be used is selected and installed in the support tube 7, and the lens barrel 4 is sleeved on the outside of the support tube 7, and then the pan head screw 9 is screwed into the end of the support tube 7. At this time, the end of the pan head screw 9 passes through the groove hole 6 and is exposed on the outside, so the adjustment tube 1 is installed on the outside of the lens barrel 4 by adopting the thermal expansion and contraction method, and then the ball head plunger 11 is screwed into the end of the adjustment tube 1, and the bottom end of the ball head plunger 11 is screwed into the inside of the positioning groove 10. The pressure of the ball head plunger 11 fixes the lens barrel 4 inside the adjustment tube 1, and the assembly of the collimator is completed. Finally, the optical fiber of the corresponding wavelength band is connected to the connector 5 at the end of the lens barrel 4, and the collimator is installed in the optical system and can be put into use.

[0037] When the light source changes, that is, light of different wavelengths passes through the lens 8 and needs to be focused, the staff unscrews the ball plunger 11 to release the limit of the lens barrel 4 and the adjusting barrel 1, and then rotates the adjusting barrel 1 counterclockwise. Since the lens barrel 4 is connected to the external optical system, it will not rotate accordingly. At this time, under the limit of the adjusting slot 3, the pan head screw 9 will move along the opening direction of the groove hole 6, that is, the pan head screw 9 moves to the right inside the adjusting slot 3, and then drives the supporting barrel 7 to move to the right inside the lens barrel 4, so that the lens 8 rotates and moves to the right in the lens barrel 4 until the position of the lens 8 reaches the optimal working distance for the outgoing light beam to be collimated light, completing the focusing. Correspondingly, if the lens 8 needs to be reset to the left or focused, it is only necessary to rotate the adjusting barrel 1 clockwise. Finally, the staff tightens the ball plunger 11 again, pressing the outer side of the lens barrel 4 while limiting the position of the adjusting barrel 1, ensuring that the lens 8 can be stably put into use;

[0038] This embodiment specifically solves the problem in the prior art that the current collimator can only meet the collimation function of a single band when in use, has a small scope of application, and needs to be improved.

[0039] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A lens focusing collimator that meets multi-band requirements, characterized by: include: An adjusting cylinder (1), wherein one end of the adjusting cylinder (1) is bent inward to form a folded edge (2), and an adjusting groove (3) is provided on the inner wall of the adjusting cylinder (1); A lens barrel (4) is installed inside the adjustment barrel (1), one end of the lens barrel (4) contacts the folded edge (2), and the other end is installed with a connector (5), and the outer side of the lens barrel (4) is provided with a spiral groove hole (6) distributed transversely along the axis of the lens barrel (4); A support tube (7) is installed inside the lens tube (4), and a lens (8) is installed inside the support tube (7); A pan head screw (9) is mounted on the outer wall of the support tube (7), and the top end of the pan head screw (9) passes through the channel hole (6) and extends into the interior of the adjustment slot (3).

2. The multi-band lens focusing collimator according to claim 1, characterized in that: The number of the pan head screws (9) is set to four, and the four pan head screws (9) are evenly distributed on the outside of the support tube (7) in a circular array.

3. The multi-band lens focusing collimator according to claim 2, characterized in that: There are four adjustment slots (3), and the adjustment slots (3) are in a straight line shape as a whole and are distributed along the axis of the adjustment cylinder (1). The top ends of the four pan head screws (9) extend into the interior of the corresponding adjustment slots (3).

4. The multi-band lens focusing collimator according to claim 1, characterized in that: The support tube (7) is provided with different specifications for mounting lenses (8) of different sizes, and the outer diameters of the support tubes (7) of different specifications are all adapted to the inner diameter of the lens barrel (4).

5. The multi-band lens focusing collimator according to claim 1, characterized in that: A positioning groove (10) is provided on the outer side of one end of the lens barrel (4) away from the folded edge (2).

6. The multi-band lens focusing collimator according to claim 5, characterized in that: A ball plunger (11) is installed inside the end of the regulating cylinder (1) away from the folded edge (2), and the bottom end of the ball plunger (11) extends into the interior of the positioning groove (10).

7. The multi-band lens focusing collimator according to claim 6, characterized in that: The positioning groove (10) is arranged in an annular shape, the number of the ball plungers (11) is arranged to be two, and the two ball plungers (11) are symmetrically distributed about the center of the regulating cylinder (1).

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