Holmium laser generating device

Abstract

The utility model discloses a holmium laser generating device which comprises a pulse xenon lamp, a holmium laser rod is horizontally arranged in a ceramic cavity from bottom to top, two ends of the pulse xenon lamp horizontally extend to the outside of the ceramic cavity and are respectively connected with a motor chuck, one end of the holmium laser rod horizontally extends to the outside of the ceramic cavity, and the other end of the holmium laser rod horizontally extends to the inside of the ceramic cavity. The total-reflection film is plated on one end face of the holmium laser rod, the other end of the holmium laser rod horizontally extends out of the ceramic cavity, and the semi-reflection film is plated on the other end face of the holmium laser rod; the semiconductor laser assembly comprises a semiconductor laser and a semiconductor laser base, the semiconductor laser is installed at the end, close to the total-reflection film, of the shell through the semiconductor laser base, and laser beams emitted by the semiconductor laser are aligned with the total-reflection film; the coupler is mounted at one end, close to the semi-reflective film, of the shell through the coupler seat, and a laser focusing channel of the coupler is aligned with the semi-reflective film. According to the utility model, the laser emission efficiency is improved, and the laser light path stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser generating devices, in particular to a holmium laser generating device. Background Art

[0002] At present, the existing laser generating devices adopt independently arranged total reflection mirrors and semi-reflection mirrors. When the laser rod emits laser, since the installation positions of the total reflection mirror and the semi-reflection mirror are easily affected by external factors and cannot be aligned with both ends of the laser rod, the optical path is likely to deviate from the axis of the laser rod. Therefore, the laser emission efficiency is reduced and the stability of the laser optical path is poor.

[0003] Therefore, a holmium laser generating device is developed to solve the above problems. Summary of the Utility Model

[0004] The utility model provides a holmium laser generating device to solve the problems that the optical path of the existing laser generating device deviates from the axis of the laser rod, resulting in reduced laser emission efficiency and poor stability of the laser optical path.

[0005] The utility model realizes the above object through the following technical solutions:

[0006] A holmium laser generating device, comprising:

[0007] A housing, which is a sealed structure with a hollow interior;

[0008] A holmium laser assembly, which is arranged in the housing. The holmium laser assembly includes a support, a ceramic cavity, a pulsed xenon lamp, a holmium laser rod, a motor chuck, a total reflection film and a semi-reflection film. The ceramic cavity is horizontally arranged on the support. The pulsed xenon lamp and the holmium laser rod are horizontally arranged from bottom to top in the ceramic cavity. Both ends of the pulsed xenon lamp horizontally extend to the outside of the ceramic cavity and are respectively connected to a motor chuck. One end of the holmium laser rod horizontally extends to the outside of the ceramic cavity. The total reflection film is plated on one end face of the holmium laser rod. The other end of the holmium laser rod horizontally extends to the outside of the ceramic cavity. The semi-reflection film is plated on the other end face of the holmium laser rod;

[0009] A semiconductor laser assembly, which includes a semiconductor laser and a semiconductor laser seat. The semiconductor laser is installed on the housing near the total reflection film end through the semiconductor laser seat. The laser beam emitted by the semiconductor laser is aligned with the total reflection film;

[0010] A coupling assembly, which includes a coupler and a coupler seat. The coupler is installed on the housing near the semi-reflection film end through the coupler seat. The laser focusing channel of the coupler is aligned with the semi-reflection film.

[0011] Specifically, the support member includes a left end head, a right end head, an upper connecting member at the end head, and a lower connecting member at the end head. The left end head and the right end head are respectively arranged on both sides inside the housing. The lower ends of the left end head and the right end head are connected by the lower connecting member at the end head, and the upper ends of the left end head and the right end head are connected by the upper connecting member at the end head. The ceramic cavity, the pulsed xenon lamp, and the holmium laser rod are all arranged between the upper connecting member at the end head and the lower connecting member at the end head. One end of the ceramic cavity, one end of the pulsed xenon lamp, and one end of the holmium laser rod are all installed on the left end head, and the other end of the ceramic cavity, the other end of the pulsed xenon lamp, and the other end of the holmium laser rod are all installed on the right end head.

[0012] Preferably, both the upper connecting member at the end head and the lower connecting member at the end head are connecting rods.

[0013] Specifically, the left end head and the right end head are respectively fixed on the inner bottom surface of the housing by fixing bolts.

[0014] Furthermore, the semiconductor laser seat includes an installation cylinder and a fastening bolt. The installation cylinder is horizontally arranged, one end of the installation cylinder passes through the side wall at one end of the housing and extends into the housing. The semiconductor laser is horizontally embedded in the installation cylinder, and the lower end of the fastening bolt is inserted into the installation cylinder from the top of the installation cylinder and abuts against the top of the semiconductor laser.

[0015] Preferably, the coupler seat is an L-shaped member. The coupler seat is arranged inside the other end of the housing. The upper end of the coupler seat is provided with an internal threaded hole, one end of the coupler is provided with an external threaded structure. The coupler is horizontally arranged, one end of the coupler passes through the side wall at the other end of the housing and extends into the housing. The coupler seat and the coupler are threadedly connected through the internal threaded hole and the external threaded structure.

[0016] Specifically, the housing includes a bottom plate, an upper baffle, a lower baffle, and an optical path cover. The upper baffle and the lower baffle are respectively vertically arranged at both ends of the bottom plate. One end of the optical path cover is hermetically connected to the left end face of the upper baffle, the other end of the optical path cover is hermetically connected to the right end face of the lower baffle, and the lower end of the optical path cover is hermetically connected to the upper end face of the bottom plate.

[0017] Specifically, the bottom of the upper baffle and the bottom of the lower baffle are both fixed to the bottom plate by bolt structures, and both ends of the optical path cover are respectively fixed to the top of the upper baffle and the top of the lower baffle by screws.

[0018] Preferably, the housing is a structure made of aluminum alloy material.

[0019] Preferably, the light-blocking rate of the total reflection film is greater than 99.8%, the light-blocking rate of the semi-reflection film is 55% ± 2%, the total reflection film is an HR coating, and the semi-reflection film is a PR coating.

[0020] The beneficial effects of the present utility model are as follows:

[0021] A holmium laser generating device proposed by the present utility model coats a total reflection film on one end of a holmium laser rod and coats a semi-reflection film on the other end of the holmium laser rod, cancels the setting of the lens, and directly sets the total reflection film and the semi-reflection film on the holmium laser rod. Thereby, the situation where the optical path deviates from the axis of the laser rod is avoided. The laser optical path is coupled and focused through a coupler, and the irradiation energy of the pulsed xenon lamp is concentrated through the high reflectivity of the ceramic cavity. Thereby, the laser emission efficiency is improved and the stability of the laser optical path is improved. Description of the Drawings

[0022] Figure 1 It is a structural diagram of a holmium laser generating device of the present application.

[0023] In the figure: 1 - bottom plate; 2 - optical path cover; 3 - upper baffle; 4 - lower baffle; 5 - ceramic cavity; 6 - pulsed xenon lamp; 7 - holmium laser rod; 8 - motor chuck; 9 - total reflection film; 10 - semi-reflection film; 11 - semiconductor laser; 12 - semiconductor laser seat; 13 - coupler; 14 - coupler seat; 15 - left end head; 16 - right end head; 17 - upper connecting piece of the end head; 18 - lower connecting piece of the end head. Detailed Embodiments

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated herein can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0026] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is customarily placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0028] In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0029] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, terms such as "arrangement" and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] The following will describe in detail the specific embodiments of the present utility model with reference to the drawings.

[0031] As Figure 1 shown, a holmium laser generating device in this embodiment includes:

[0032] A housing, the housing is a sealed structure with a hollow interior;

[0033] A holmium laser assembly, the holmium laser assembly is arranged in the housing. The holmium laser assembly includes a support member, a ceramic cavity 5, a pulsed xenon lamp 6, a holmium laser rod 7, a motor chuck 8, a total reflection film 9, and a semi-reflection film 10. The ceramic cavity 5 is horizontally arranged on the support member. The pulsed xenon lamp 6 and the holmium laser rod 7 are horizontally arranged from bottom to top in the ceramic cavity 5. Both ends of the pulsed xenon lamp 6 horizontally extend to the outside of the ceramic cavity 5 and are respectively connected to a motor chuck 8. One end of the holmium laser rod 7 horizontally extends to the outside of the ceramic cavity 5. The total reflection film 9 is plated on one end face of the holmium laser rod 7. The other end of the holmium laser rod 7 horizontally extends to the outside of the ceramic cavity 5. The semi-reflection film 10 is plated on the other end face of the holmium laser rod 7;

[0034] A semiconductor laser module, which includes a semiconductor laser 11 and a semiconductor laser base 12. The semiconductor laser 11 is mounted on the housing near one end of the total reflection film 9 through the semiconductor laser base 12, and the laser beam emitted by the semiconductor laser 11 is aligned with the total reflection film 9.

[0035] A coupling module, which includes a coupler 13 and a coupler base 14. The coupler 13 is mounted on the housing near one end of the semi-reflection film 10 through the coupler base 14, and the laser focusing channel of the coupler 13 is aligned with the semi-reflection film 10.

[0036] The housing is sealed to ensure that the laser does not leak. The laser emitted by the semiconductor laser serves as a aiming and indicating function, and locates the laser light path emitted by the holmium laser rod 7. The laser emitted by the semiconductor laser is visible light, while the laser emitted by the holmium laser rod 7 is invisible light. The laser light path emitted from one end of the holmium laser rod 7 is reflected back by the total reflection film 9 and converges with the laser light path emitted from one end of the holmium laser rod 7, and then enters the coupler 13 and is focused by the coupler 13 to form a light spot. In this process, since the total reflection film 9 and the semi-reflection film 10 are directly set at both ends of the holmium laser rod 7, and the light path is transmitted through the film layer, the situation that the light path deviates from the axis of the laser rod is avoided. The ceramic cavity 5 can pulse the light emitted by the xenon lamp 6 back and forth, has a high reflectivity, and the irradiation energy is more concentrated. In actual application, cooling water can be introduced into the ceramic cavity 5 to dissipate heat from the pulsed xenon lamp 6 and the holmium laser rod 7. The motor chuck is used to supply power to the pulsed xenon lamp 6. The coupler couples and focuses the laser beam through the internal focusing lens.

[0037] As Figure 1 shown, in some embodiments, the support member includes a left end head 15, a right end head 16, an upper connecting member 17 at the end head, and a lower connecting member 18 at the end head. The left end head 15 and the right end head 16 are respectively arranged on both sides inside the housing. The lower ends of the left end head 15 and the right end head 16 are connected by the lower connecting member 18 at the end head, and the upper ends of the left end head 15 and the right end head 16 are connected by the upper connecting member 17 at the end head. The ceramic cavity 5, the pulsed xenon lamp 6, and the holmium laser rod 7 are all arranged between the upper connecting member 17 at the end head and the lower connecting member 18 at the end head. One end of the ceramic cavity 5, one end of the pulsed xenon lamp 6, and one end of the holmium laser rod 7 are all mounted on the left end head 15, and the other end of the ceramic cavity 5, the other end of the pulsed xenon lamp 6, and the other end of the holmium laser rod 7 are all mounted on the right end head 16.

[0038] As Figure 1 shown, in some embodiments, both the upper connecting member 17 at the end head and the lower connecting member 18 at the end head are connecting rods.

[0039] As Figure 1As shown, in some embodiments, the left end head 15 and the right end head 16 are respectively fixed to the inner bottom surface of the housing by fixing bolts.

[0040] As Figure 1 shown, in some embodiments, preferably, the semiconductor laser seat includes a mounting cylinder and a fastening bolt. The mounting cylinder is horizontally arranged, one end of the mounting cylinder passes through a side wall at one end of the housing and extends into the housing. The semiconductor laser 11 is horizontally embedded in the mounting cylinder. The lower end of the fastening bolt is inserted into the mounting cylinder from the top of the mounting cylinder and abuts against the top of the semiconductor laser 11.

[0041] As Figure 1 shown, in some embodiments, the coupler seat 14 is an L-shaped part. The coupler seat 14 is arranged inside the other end of the housing. An internal threaded hole is provided at the upper end of the coupler seat 14. An external threaded structure is provided at one end of the coupler 13. The coupler 13 is horizontally arranged. One end of the coupler 13 passes through a side wall at the other end of the housing and extends into the housing. The coupler seat 14 and the coupler 13 are threadedly connected through the internal threaded hole and the external threaded structure.

[0042] As Figure 1 shown, in some embodiments, the housing includes a bottom plate 1, an upper baffle 3, a lower baffle 4 and an optical path cover 2. The upper baffle 3 and the lower baffle 4 are respectively vertically arranged at both ends of the bottom plate 1. One end of the optical path cover 2 is hermetically connected to the left end face of the upper baffle 3. The other end of the optical path cover 2 is hermetically connected to the right end face of the lower baffle 4. The lower end of the optical path cover 2 is hermetically connected to the upper end face of the bottom plate 1. A sealed housing is formed by the bottom plate 1, the upper baffle 3, the lower baffle 4 and the optical path cover 2.

[0043] As Figure 1 shown, in some embodiments, the bottom of the upper baffle 3 and the bottom of the lower baffle 4 are both fixed to the bottom plate 1 by bolt structures. Both ends of the optical path cover 2 are respectively fixed to the top of the upper baffle 3 and the top of the lower baffle 4 by screws.

[0044] In some embodiments, preferably, the housing is a structure made of aluminum alloy material.

[0045] In some embodiments, preferably, the light blocking rate of the total reflection film 9 is greater than 99.8%, the light blocking rate of the semi-reflection film 10 is 55% ± 2%, the total reflection film 9 is HR coated film, and the semi-reflection film 10 is PR coated film.

[0046] A holmium laser generating device proposed by the utility model coats a total reflection film on one end of a holmium laser rod and a semi-reflection film on the other end of the holmium laser rod, cancels the setting of lenses, and directly sets the total reflection film and the semi-reflection film on the holmium laser rod, thereby avoiding the situation that the optical path deviates from the axis of the laser rod. The laser optical path is coupled and focused through a coupler, and the irradiation energy of a pulsed xenon lamp is concentrated through the high reflectivity of a ceramic cavity, thereby improving the laser emission efficiency and the stability of the laser optical path.

[0047] The above are only the preferred embodiments of the utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the utility model.

Claims

1. A holmium laser generating device, characterized in that: include: A housing, wherein the housing is a sealed structure having a hollow interior; A holmium laser assembly, the holmium laser assembly being arranged in the housing, the holmium laser assembly comprising a support, a ceramic cavity (5), a pulsed xenon lamp (6), a holmium laser rod (7), a motor chuck (8), a total reflection film (9) and a semi-reflection film (10), the ceramic cavity (5) being arranged horizontally on the support, the pulsed xenon lamp (6) and the holmium laser rod (7) being arranged horizontally from bottom to top in the ceramic cavity (5), the two ends of the pulsed xenon lamp (6) respectively extending horizontally to the outside of the ceramic cavity (5) and being respectively connected to a motor chuck (8), one end of the holmium laser rod (7) extending horizontally to the outside of the ceramic cavity (5), the total reflection film (9) being plated on an end surface of one end of the holmium laser rod (7), the other end of the holmium laser rod (7) extending horizontally to the outside of the ceramic cavity (5), and the semi-reflection film (10) being plated on an end surface of the other end of the holmium laser rod (7); A semiconductor laser component, the semiconductor laser component comprising a semiconductor laser (11) and a semiconductor laser holder (12), the semiconductor laser (11) being mounted on the housing through the semiconductor laser holder (12) at one end close to the total reflection film (9), the laser beam emitted by the semiconductor laser (11) being aimed at the total reflection film (9); A coupling component, the coupling component comprising a coupler (13) and a coupler seat (14), the coupler (13) being mounted on the housing through the coupler seat (14) at one end close to the semi-reflective membrane (10), and the laser focusing channel of the coupler (13) being aligned with the semi-reflective membrane (10).

2. A holmium laser generating device according to claim 1, characterized in that: The support member comprises a left end head (15), a right end head (16), an upper end head connecting member (17) and a lower end head connecting member (18); the left end head (15) and the right end head (16) are respectively arranged on two sides of the interior of the shell; the lower end of the left end head (15) and the lower end of the right end head (16) are connected via the lower end head connecting member (18); the upper end of the left end head (15) and the upper end of the right end head (16) are connected via the upper end head connecting member (17); the ceramic cavity (5), the pulse xenon lamp (6) and the holmium laser rod (7) are all arranged between the upper connecting piece (17) and the lower connecting piece (18) of the end; one end of the ceramic cavity (5), one end of the pulse xenon lamp (6) and one end of the holmium laser rod (7) are all mounted on the left end (15); the other end of the ceramic cavity (5), the other end of the pulse xenon lamp (6) and the other end of the holmium laser rod (7) are all mounted on the right end (16).

3. A holmium laser generating device according to claim 2, characterized in that: The upper end connection piece (17) and the lower end connection piece (18) are both connection rods.

4. A holmium laser generating device according to claim 2, characterized in that: The left end head (15) and the right end head (16) are respectively fixed to the inner bottom surface of the shell by fixing bolts.

5. A holmium laser generating device according to claim 1, characterized in that: The semiconductor laser seat (12) comprises a mounting tube and a fastening bolt, the mounting tube is arranged horizontally, one end of the mounting tube passes through a side wall of one end of the shell and extends into the shell, the semiconductor laser (11) is horizontally embedded in the mounting tube, and the lower end of the fastening bolt is inserted into the mounting tube from the top of the mounting tube and abuts against the top of the semiconductor laser (11).

6. A holmium laser generating device according to claim 1, characterized in that: The coupler seat (14) is an L-shaped member, and the coupler seat (14) is arranged inside the other end of the shell. The upper end of the coupler seat (14) is provided with an internal thread hole, and one end of the coupler (13) is provided with an external thread structure. The coupler (13) is arranged horizontally, and one end of the coupler (13) passes through the side wall of the other end of the shell and extends into the shell. The coupler seat (14) and the coupler (13) are threadedly connected to the external thread structure through the internal thread hole.

7. A holmium laser generating device according to claim 1, characterized in that: The shell comprises a base plate (1), an upper baffle plate (3), a lower baffle plate (4) and a light path cover (2); the upper baffle plate (3) and the lower baffle plate (4) are respectively arranged vertically at the two ends of the base plate (1); one end of the light path cover (2) is sealedly connected to the left end surface of the upper baffle plate (3); the other end of the light path cover (2) is sealedly connected to the right end surface of the lower baffle plate (4); and the lower end of the light path cover (2) is sealedly connected to the upper end surface of the base plate (1).

8. A holmium laser generating device according to claim 7, characterized in that: The bottom of the upper baffle (3) and the bottom of the lower baffle (4) are both fixed to the base plate (1) via a bolt structure, and the two ends of the light path cover (2) are respectively fixed to the top of the upper baffle (3) and the top of the lower baffle (4) via screws.

9. A holmium laser generating device according to claim 1 or 7, characterized in that: The shell is a structure made of aluminum alloy material.

10. The holmium laser generating device according to claim 1, characterized in that: The light blocking rate of the fully reflective film (9) is greater than>99.8%, the light blocking rate of the semi-reflective film (10) is 55%±2%, the fully reflective film (9) is an HR coating, and the semi-reflective film (10) is a PR coating.

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