CN211826665U

CN211826665U - CVD diamond cone lens structure

Info

Publication number: CN211826665U
Application number: CN202020407457.5U
Authority: CN
Inventors: 刘宏明; 赵芬霞
Original assignee: Huzhou Zhongxin Semiconductor Technology Co ltd
Current assignee: Huzhou Zhongxin Semiconductor Technology Co ltd
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2020-10-30
Anticipated expiration: 2030-03-26

Abstract

The utility model relates to the technical field of conical lens, and discloses a CVD diamond conical lens structure, which comprises a conical lens and a protective tube, wherein pipe orifices at two ends of the protective tube are both connected with a plane mirror through a clamping mechanism, the conical lens is connected in the protective tube through a positioning mechanism, the conical lens comprises a cylinder and a cone, the cylinder and the cone are integrated into a whole, and the conical bottom surface of the cone is superposed with the cylindrical top surface; the screens mechanism includes concave type pole and two screens subassemblies, and two screens subassemblies set up about the level crossing symmetry, and the both sides of two screens subassemblies centre gripping level crossings, and the screens subassembly includes screens groove, screens hole, spring and screens piece, and the screens groove is seted up on the inner pipe wall of protective tube. The utility model discloses still be convenient for maintain the axicon lens structure when protecting axicon lens, can change the light beam position of axicon lens as required moreover.

Description

CVD diamond cone lens structure

Technical Field

The utility model relates to a conical lens technical field especially relates to a CVD diamond awl lens structure.

Background

Axicons, also commonly referred to as rotationally symmetric prisms, are lenses that consist of a conical surface and a flat surface. Cone lenses are commonly used to generate beams of Bessel intensity distributions or conical non-diverging beams. When the collimated light beam is changed into the annular light beam, the plane of the cone lens faces the collimated light source. The lens structure is divided into two parts, one half part is cylindrical, and the other half part is conical. The CVD diamond cone lens structure has the following defects:

because the CVD diamond cone lens has a simple structure, the CVD diamond cone lens is easy to damage when falling on the ground in the use process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the damage of the conical lens is easily caused when the CVD diamond conical lens is dropped on the ground due to the simple structure of the CVD diamond conical lens in the prior art, and providing the CVD diamond conical lens structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a CVD diamond cone lens structure comprises a cone lens and a protective tube, wherein pipe orifices at two ends of the protective tube are both connected with plane mirrors through clamping mechanisms, the cone lens is connected in the protective tube through a position adjusting mechanism, the cone lens comprises a cylinder and a cone, the cylinder and the cone are integrated, and the bottom surface of the cone coincides with the top surface of the cylinder;

the clamping mechanism comprises a concave rod and two clamping components, the two clamping components are symmetrically arranged around the plane mirror, the two clamping components clamp two sides of the plane mirror, the clamping components comprise clamping grooves, clamping holes, springs and clamping blocks, the clamping groove is arranged on the inner pipe wall of the protective pipe, the clamping hole is arranged at the center of the bottom of the clamping groove, one end of the spring is fixedly connected with the bottom of the clamping groove, the other end of the spring is connected with one end of the clamping block, one end of each clamping block, which is far away from the spring, passes through the notch of the clamping groove and extends into the protective pipe, two clamping blocks on the two clamping assemblies clamp two sides of the plane mirror, the horizontal end of the concave rod is arranged on the outer pipe wall of the protective pipe, and the vertical ends of the two ends of the concave rod penetrate through the two clamping holes of the two clamping components and the two springs and are connected with one ends of the two clamping blocks close to the bottoms of the clamping grooves respectively.

Preferably, the positioning mechanism comprises a positioning groove, a positioning hole, a positioning rod and a rubber ring, the positioning groove is arranged on the inner wall of the protection pipe along the horizontal linear direction, the positioning hole is arranged at the bottom of the positioning groove, one end of the positioning rod is fixedly connected to the annular side wall of the conical lens, the other end of the positioning rod sequentially penetrates through the positioning groove and the positioning hole and extends out of the protection pipe, the rubber ring is fixedly sleeved on the rod wall of the positioning rod, and the outer annular wall of the rubber ring is arranged on the hole wall of the positioning hole.

Preferably, the side wall of the clamping block close to one end of the spring is symmetrically and fixedly connected with a sliding block, sliding grooves are symmetrically formed in the groove wall of the clamping groove along the vertical direction, and the sliding block is connected in the corresponding sliding grooves in a sliding mode.

Preferably, a sealing groove is formed in the hole wall of the clamping hole, a sealing ring is arranged between the sealing groove and the vertical end of the concave rod, and the sealing ring is fixedly sleeved at the bottom of the sealing groove.

Preferably, the outer side of the horizontal end of the concave rod is fixedly connected with a pull handle.

Preferably, the rod wall of the positioning rod is fixedly sleeved with a dustproof plate, and the dustproof plate is connected to the bottom of the positioning groove in a sliding mode.

Compared with the prior art, the utility model provides a CVD diamond awl lens structure possesses following beneficial effect:

1. this CVD diamond awl lens structure, through setting up concave type pole, the screens groove, the screens hole, a screens mechanism is constituteed to spring and screens block, protect the awl lens of CVD diamond material under the prerequisite that does not influence awl lens use through protective tube and plane mirror, when the level crossing takes place to damage, exert the pulling force to concave type pole, concave type pole drives screens piece compression spring and moves to the tank bottom direction in screens groove, draw in the screens groove back completely with the screens piece, can change and clamp again the level crossing that damages, still be convenient for maintain the awl lens structure when protecting awl lens.

2. This CVD diamond awl lens structure constitutes a positioning mechanism through setting up positioning groove, positioning hole, positioning rod and rubber ring, through the slip frictional force between rubber ring and the positioning hole for the positioning rod can not remove easily under the exogenic action that does not receive the manpower to apply, when the light beam position who changes awl lens, exerts the removal power to the positioning rod, and the positioning rod drives awl lens and moves in the protective tube, thereby changes awl lens's light beam position.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses still be convenient for maintain the awl lens structure when protecting awl lens, can change the light beam position of awl lens as required moreover.

Drawings

Fig. 1 is a schematic structural diagram of a CVD diamond axicon structure according to the present invention;

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

In the figure: 1 cone lens, 2 protective tubes, 3 clamping mechanisms, 31 concave rods, 32 clamping grooves, 33 clamping holes, 34 springs, 35 clamping blocks, 4 plane mirrors, 5 positioning mechanisms, 51 positioning grooves, 52 positioning holes, 53 positioning rods, 54 rubber rings, 6 sliding blocks, 7 sliding grooves, 8 sealing rings, 9 pull handles and 10 dust-proof plates.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, a CVD diamond cone lens structure, including cone lens 1 and protective tube 2, the pipe orifice of both ends of protective tube 2 is all connected with the level mirror 4 through the clamping mechanism 3, cone lens 1 connects in protective tube 2 through the positioning mechanism 5, cone lens 1 includes cylindrical and conical, cylindrical and conical structure as an organic whole, conical bottom surface and cylindrical top surface coincide, cylindrical bottom surface is the laser entrance surface, conical surface is the exit surface, both surfaces are processed with the industrial grinding equipment after the laser cutting, the surface roughness is no more than Ra 10nm, laser is incident perpendicularly along the centre of the entrance surface, the exit optical fiber extends from the conical top to the length of the product of beam diameter and 35 degrees inverse sine function, because the CVD diamond has excellent thermal conductivity, can dissipate the heat energy that photon and lens molecule scatter to the outside with a fast speed, thereby supporting higher laser withstand power;

the clamping mechanism 3 comprises a concave rod 31 and two clamping components, the two clamping components are symmetrically arranged about the plane mirror 4 and clamp two sides of the plane mirror 4, the clamping components comprise a clamping groove 32, a clamping hole 33, a spring 34 and a clamping block 35, the clamping groove 32 is arranged on the inner pipe wall of the protective pipe 2, the clamping hole 33 is arranged at the center of the bottom of the clamping groove 32, one end of the spring 34 is fixedly connected to the bottom of the clamping groove 32, the other end of the spring 34 is connected with one end of the clamping block 35, one end of the clamping block 35 far away from the spring 34 penetrates through the notch of the clamping groove 32 and extends into the protective pipe 2, the two clamping blocks 35 on the two clamping components clamp two sides of the plane mirror 4, the horizontal end of the concave rod 31 is arranged on the outer pipe wall of the protective pipe 2, the vertical ends of the two ends of the concave rod 31 respectively penetrate through the two clamping holes 33 of the two clamping components and the two springs 34 and are respectively connected with one end of the two clamping blocks 35 close to the bottom of the clamping groove 32, protect the awl lens of CVD diamond material under the prerequisite that does not influence awl lens use through protective tube 2 and plane mirror 4, when plane mirror 4 takes place to damage, exert the pulling force to concave type pole 31, concave type pole 31 drives screens piece 35 compression spring 34 and moves to the tank bottom direction of screens groove 32, draw in screens piece 35 completely behind screens groove 32, can change and clamp again damaged plane mirror 4, still be convenient for maintain the awl lens structure when protecting awl lens 1.

The positioning mechanism 5 comprises a positioning groove 51, a positioning hole 52, a positioning rod 53 and a rubber ring 54, the positioning groove 51 is arranged on the inner pipe wall of the protective pipe 2 along the horizontal straight line direction, the positioning hole 52 is arranged at the bottom of the positioning groove 51, one end of the positioning rod 53 is fixedly connected on the annular side wall of the conical lens 1, the other end of the positioning rod 53 sequentially passes through the positioning groove 51 and the positioning hole 52 and extends out of the protective pipe 2, the rubber ring 54 is fixedly sleeved on the rod wall of the positioning rod 53, the outer ring wall of the rubber ring 54 is arranged on the hole wall of the positioning hole 52, the positioning rod 53 is not easily moved by an external force applied by a human force by a sliding frictional force between the rubber ring 54 and the positioning hole 52, and when the beam position of the axicon lens 1 is changed, the positioning rod 53 applies a moving force, and the positioning rod 53 drives the cone lens 1 to move in the protective tube 2, so that the light beam position of the cone lens 1 is changed.

The lateral wall symmetry fixedly connected with slider 6 that screens piece 35 is close to spring 34 one end position has seted up spout 7 along vertical direction symmetry on the cell wall of screens groove 32, and slider 6 sliding connection carries out synchronous motion in spout 7 during the motion of screens piece 35, prevents that screens piece 35 from being bounced out of screens groove 32 by spring 34 in the spout 7 that corresponds.

The seal groove has been seted up on the pore wall of screens hole 33, is equipped with sealing ring 8 between the vertical end of seal groove and concave type pole 31, and sealing ring 8 is fixed to be cup jointed at the tank bottom of seal groove, prevents that external dust from entering into in the protective tube 2 through screens hole 33.

The outer side of the horizontal end of the concave rod 31 is fixedly connected with a pull handle 9, and the concave rod 31 is conveniently driven to move through the pull handle 9.

The dust guard 10 is fixedly sleeved on the rod wall of the positioning rod 53, the dust guard 10 is slidably connected to the bottom of the positioning groove 51, and dust outside the dust guard pipe 2 is prevented from entering the protective pipe 2 through the positioning groove 51 and the positioning hole 52 through the dust guard 10.

In the utility model, the conical lens made of CVD diamond material is protected through the protective tube 2 and the plane mirror 4 under the premise of not influencing the use of the conical lens, when the plane mirror 4 is damaged, the pulling force is applied to the concave rod 31, the concave rod 31 drives the clamping block 35 to compress the spring 34 to move towards the bottom direction of the clamping groove 32, after the clamping block 35 is completely pulled into the clamping groove 32, the damaged plane mirror 4 can be replaced and clamped again, and the conical lens structure can be conveniently maintained while the conical lens 1 is protected; through the sliding friction force between the rubber ring 54 and the positioning hole 52, the positioning rod 53 cannot easily move under the action of external force exerted by manpower, when the light beam position of the axicon lens 1 is changed, the positioning rod 53 is exerted with moving force, and the positioning rod 53 drives the axicon lens 1 to move in the protective tube 2, so that the light beam position of the axicon lens 1 is changed.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A CVD diamond cone lens structure comprises a cone lens (1) and a protective tube (2), and is characterized in that tube orifices at two ends of the protective tube (2) are connected with a plane mirror (4) through clamping mechanisms (3), the cone lens (1) is connected in the protective tube (2) through a positioning mechanism (5), the cone lens (1) comprises a cylinder and a cone, the cylinder and the cone are of an integral structure, and the bottom surface of the cone coincides with the top surface of the cylinder;

the clamping mechanism (3) comprises a concave rod (31) and two clamping components, the two clamping components are symmetrically arranged about the plane mirror (4), the two clamping components clamp two sides of the plane mirror (4), each clamping component comprises a clamping groove (32), a clamping hole (33), a spring (34) and a clamping block (35), the clamping groove (32) is formed in the inner pipe wall of the protective pipe (2), the clamping hole (33) is formed in the center of the bottom of the clamping groove (32), one end of each spring (34) is fixedly connected to the bottom of the clamping groove (32), the other end of each spring (34) is connected with one end of the corresponding clamping block (35), one end, far away from the spring (34), of each clamping block (35) penetrates through the notch of the corresponding clamping groove (32) and extends into the protective pipe (2), the two clamping blocks (35) on the two clamping components clamp two sides of the plane mirror (4), the horizontal end of the concave rod (31) is arranged on the outer pipe wall of the protective pipe (2), and the vertical ends of the two ends of the concave rod (31) respectively penetrate through two clamping holes (33) of the two clamping components and two springs (34) and are respectively connected with one ends of two clamping blocks (35) close to the bottoms of the clamping grooves (32).

2. A CVD diamond axicon lens structure according to claim 1, wherein the positioning mechanism (5) comprises a positioning groove (51), a positioning hole (52), a positioning rod (53) and a rubber ring (54), the positioning groove (51) is opened on the inner tube wall of the shielding tube (2) along the horizontal straight direction, the positioning hole (52) is opened on the bottom of the positioning groove (51), one end of the positioning rod (53) is fixedly connected to the annular side wall of the axicon lens (1), the other end of the positioning rod (53) passes through the positioning groove (51) and the positioning hole (52) in sequence and extends out of the shielding tube (2), the rubber ring (54) is fixedly sleeved on the rod wall of the positioning rod (53), and the outer ring wall of the rubber ring (54) is arranged on the hole wall of the positioning hole (52).

3. A CVD diamond tapered lens structure according to claim 1, wherein the side wall of the position-locking block (35) near one end of the spring (34) is symmetrically and fixedly connected with a sliding block (6), the groove wall of the position-locking groove (32) is symmetrically provided with sliding grooves (7) along the vertical direction, and the sliding block (6) is slidably connected in the corresponding sliding groove (7).

4. The CVD diamond tapered lens structure according to claim 1, wherein a sealing groove is formed in the wall of the clamping hole (33), a sealing ring (8) is arranged between the sealing groove and the vertical end of the concave rod (31), and the sealing ring (8) is fixedly sleeved at the bottom of the sealing groove.

5. A CVD diamond axicon structure according to claim 1, characterized in that a pull handle (9) is fixedly connected to the outside of the horizontal end of the concave rod (31).

6. A CVD diamond cone lens structure according to claim 2, characterized in that the rod wall of the positioning rod (53) is fixedly sleeved with a dust guard (10), and the dust guard (10) is slidably connected to the bottom of the positioning groove (51).