Optical coupler and laser medical equipment
By designing an optical coupler using a shell, collimating lens barrel and adjustment bolt, the problem of difficult heat dissipation caused by the L-shaped adjustment frame in the prior art is solved, and the structure simplification and heat dissipation effect of the optical coupler are achieved. promote.
Patent Information
- Application Number
- CN202421199817.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-28
AI Technical Summary
In existing optical couplers, the L-shaped adjustment frame is used to adjust the angle of the collimator, which makes it difficult to dissipate heat in time, affecting the accuracy of the optical device and possibly causing damage.
An optical coupler is designed, using a structure of a shell, a collimating lens barrel and a number of adjustment bolts. The angle of the collimating lens barrel is adjusted by adjusting the screws, eliminating the L-shaped adjustment frame and simplifying the structure. Improves heat dissipation effect.
The precise adjustment of the light angle of the alignment collimator is achieved, the structure of the optical coupler is simplified, the heat dissipation effect is enhanced, and the damage to the optical device is avoided by heat accumulation.
Smart Images
Figure CN222506613U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of laser coupling, in particular to an optical coupler and laser medical equipment. Background Art
[0002] Laser technology is increasingly used in medical equipment, and optical couplers are important components that connect lasers and medical optical fibers. The interior of the optical coupler is equipped with optical components such as collimators, beam splitters, and focusing lenses. In practical applications, the laser beam emitted by the laser passes through collimators, beam splitters, and focusing lenses in sequence before entering the medical optical fiber.
[0003] like Figure 1 As shown, in order to allow the light beam passing through the collimator to be accurately irradiated to the beam splitter 40', usually, an L-shaped adjustment frame 10' is arranged outside the collimator barrel 20' of the collimator, and the angle of the collimator barrel 20' is finely adjusted by the L-shaped adjustment frame 10' to achieve the purpose of adjusting the angle of the collimator. However, due to the complex structure of the L-shaped adjustment frame 10', it is difficult to dissipate the heat generated by the optical coupler during operation in time, and the accumulated heat will have an adverse effect on the optical device, not only affecting the accuracy of the optical device, but even causing damage to the optical device. Utility Model Content
[0004] The first object of the utility model is to provide an optical coupler to solve the technical problem that the heat is difficult to dissipate in time in the existing method of adjusting the angle of the collimator using an L-shaped adjustment frame.
[0005] The optical coupler provided by the utility model comprises a shell, a collimating lens barrel and a plurality of adjusting bolts, wherein the shell has a side wall, the collimating lens barrel has a mounting end face facing the side wall, the mounting end face is provided with a plurality of adjusting screw holes, the plurality of adjusting screw holes are arranged at intervals around the axial direction of the collimating lens barrel, and the number of the adjusting bolts is the same as the number of the adjusting screw holes; the side wall is provided with a plurality of adjusting light holes, the number of the adjusting light holes is the same as the number of the adjusting screw holes and the positions correspond one to one, and the plurality of adjusting bolts are respectively and one to one passed through the plurality of adjusting light holes and screwed into the corresponding adjusting screw holes.
[0006] Furthermore, the collimating lens barrel comprises a barrel body and a flange surrounding the barrel body, a side of the flange facing the side wall forms the mounting end surface, and a plurality of adjusting screw holes are provided on the flange.
[0007] Furthermore, the cylinder includes a large diameter section and a small diameter section arranged along its own axial direction, the side wall is provided with a through hole, the through hole is opposite to the cylinder along the axial direction of the cylinder, and the small diameter section is penetrated through the through hole.
[0008] Furthermore, the adjusting screw hole is a through hole structure that penetrates the flange along the axial direction of the cylinder.
[0009] Furthermore, the mounting end surface is abutted against the side wall.
[0010] Furthermore, the large diameter section and the flange are both arranged inside the shell.
[0011] Furthermore, the flange is a circular ring structure.
[0012] Furthermore, the plurality of adjusting screw holes are arranged at equal intervals in the axial direction around the collimating lens barrel.
[0013] Furthermore, the number of the adjusting screw holes is three.
[0014] The beneficial effects brought by the optical coupler of the utility model are:
[0015] By providing an optical coupler mainly composed of a housing, a collimating lens barrel and a plurality of adjusting bolts, when assembling the collimating lens barrel, the mounting end face of the collimating lens barrel can be firstly directed toward the side wall of the housing, and the plurality of adjusting screw holes provided on the mounting end face can be respectively opposite to the plurality of adjusting light holes provided on the side wall; then, the plurality of adjusting bolts are respectively passed through the plurality of adjusting light holes in a one-to-one correspondence and screwed into the corresponding adjusting screw holes. In this process, the angle of the collimating lens barrel can be finely adjusted when the adjusting bolts are not tightened, so as to adjust the optical path of the collimating lens passing through the interior of the collimating lens barrel, so that the light beam emitted by the collimating lens can be accurately emitted to the beam splitter; and after adjusting the angle of the collimating lens barrel, the respective adjusting bolts can be tightened to fix the collimating lens barrel, so as to ensure the working stability of the optical coupler.
[0016] The optical coupler not only realizes the adjustment of the light output angle of the collimator through the above arrangement, but also eliminates the need for an L-shaped adjustment frame, simplifies the structure of the optical coupler, and enables the heat generated by the optical coupler during operation to be dissipated in time, thereby enhancing the heat dissipation effect, thereby effectively solving the problem in the prior art that the heat is difficult to dissipate in time when the angle of the collimator is adjusted using an L-shaped adjustment frame.
[0017] The second purpose of the utility model is to provide a laser medical device to solve the technical problem that the heat is difficult to dissipate in time in the existing method of adjusting the angle of the collimator using an L-shaped adjustment frame.
[0018] The laser medical device provided by the utility model comprises a laser, a medical optical fiber and the above optical coupler, wherein the laser is arranged at the light input end of the optical coupler, and the medical optical fiber is arranged at the light output end of the optical coupler.
[0019] The beneficial effects brought by the laser medical equipment of the utility model are:
[0020] The laser medical device adopts the above-mentioned optical coupler. In actual application, the light beam emitted by the laser enters the optical coupler and is finally output by the medical optical fiber. Therefore, the laser medical device has all the advantages of the above-mentioned optical coupler, which will not be described one by one here. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.
[0022] Figure 1 A partial schematic diagram of the internal structure of an optical coupler provided in the prior art;
[0023] Figure 2 A partial schematic diagram of the internal structure of an optical coupler provided in an embodiment of the utility model;
[0024] Figure 3 A schematic diagram of the appearance of an optical coupler provided in an embodiment of the utility model;
[0025] Figure 4 A partial exploded view of the internal structure of the optical coupler provided in an embodiment of the utility model.
[0026] Description of reference numerals:
[0027] 10'-L-shaped adjustment frame; 11'-vertical section; 12'-horizontal section; 13'-mounting hole; 20'-collimation lens barrel; 30'-adjustment bolt; 40'-beam splitter; 50'-adjustment screw hole;
[0028] 100-housing; 200-collimation lens tube; 300-beam splitter;
[0029] 110-side wall; 120-adjusting light hole; 130-perforation;
[0030] 210 - cylinder body; 211 - large diameter section; 212 - small diameter section; 220 - flange; 221 - mounting end surface; 222 - adjustment screw hole. DETAILED DESCRIPTION
[0031] like Figure 1As shown, the optical coupler provided by the prior art adjusts the angle of the collimator through an L-shaped adjustment frame 10'. Specifically, the L-shaped adjustment frame 10' includes a vertical section 11' and a horizontal section 12'. The vertical section 11' is provided with a mounting hole 13', and the collimator barrel 20' is penetrated through the mounting hole 13'; the vertical section 11' is also provided with an adjustment screw hole 50' intersecting with the mounting hole 13', and the adjustment bolt 30' is penetrated through the above-mentioned adjustment screw hole 50' and abuts against the outer wall of the collimator barrel 20'. By screwing the adjustment bolt 30', the extension length of the adjustment bolt 30' is changed, so as to achieve the purpose of fine-tuning the angle of the collimator barrel 20', so that the light beam emitted through the collimator can accurately be emitted to the beam splitter 40'.
[0032] However, due to the complex structure of the L-shaped adjustment frame 10', the heat generated by the optical coupler during operation is difficult to dissipate in time, and the accumulated heat will have an adverse effect on the optical device, not only affecting the accuracy of the optical device, but even causing damage to the optical device.
[0033] Therefore, the purpose of the present invention is to provide an optical coupler and a laser medical device to solve the above problems.
[0034] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0035] like Figure 2 and Figure 3 As shown, this embodiment provides an optical coupler, including a housing 100, a collimating lens barrel 200 and a plurality of adjusting bolts (not shown in the figure), wherein the housing 100 has a side wall 110, the collimating lens barrel 200 has a mounting end face 221 facing the side wall 110, the mounting end face 221 is provided with a plurality of adjusting screw holes 222, the plurality of adjusting screw holes 222 are arranged axially at intervals around the collimating lens barrel 200, and the number of the adjusting bolts is the same as the number of the adjusting screw holes 222; the side wall 110 is provided with a plurality of adjusting light holes 120, the number of the adjusting light holes 120 is the same as the number of the adjusting screw holes 222 and the positions correspond one to one, and the plurality of adjusting bolts are respectively and one to one passed through the plurality of adjusting light holes 120 and screwed into the corresponding adjusting screw holes 222.
[0036] When assembling the collimating lens barrel 200, the mounting end surface 221 of the collimating lens barrel 200 can be firstly directed toward the side wall 110 of the housing 100, and the plurality of adjusting screw holes 222 provided on the mounting end surface 221 can be respectively opposite to the plurality of adjusting light holes 120 provided on the side wall 110; then, the plurality of adjusting bolts can be respectively passed through the plurality of adjusting light holes 120 and screwed into the corresponding adjusting screw holes 222. In this process, the angle of the collimating lens barrel 200 can be fine-tuned when the adjusting bolts are not tightened, so as to adjust the optical path of the collimating lens passing through the interior of the collimating lens barrel 200, so that the light beam emitted by the collimating lens can be accurately emitted to the beam splitter 300; and after adjusting the angle of the collimating lens barrel 200, the adjusting bolts can be tightened to fix the collimating lens barrel 200, so as to ensure the working stability of the optical coupler.
[0037] The optical coupler not only realizes the adjustment of the light output angle of the collimator through the above arrangement, but also eliminates the need for an L-shaped adjustment frame, simplifies the structure of the optical coupler, and enables the heat generated by the optical coupler during operation to be dissipated in time, thereby enhancing the heat dissipation effect, thereby effectively solving the problem in the prior art that the heat is difficult to dissipate in time when the angle of the collimator is adjusted using an L-shaped adjustment frame.
[0038] In addition, the arrangement of the adjusting bolt not only serves the purpose of connecting the collimating lens barrel 200 and the housing 100, but also serves the purpose of adjusting the angle of the collimating lens barrel 200, further simplifying the structure of the optical coupler. Moreover, since the L-shaped adjustment frame is omitted, the weight of the optical coupler can be reduced, and the manufacturing cost can be saved.
[0039] It should be noted that after the adjustment bolt is used to adjust the angle and fix the collimating lens barrel 200, the matching positions of the adjustment bolt, the adjustment light hole 120 and the adjustment screw hole 222 can also be glued to improve the connection stability, avoid changing the light path due to the shaking of the collimating lens barrel 200, and ensure the accuracy of the light beam emitted by the collimating lens to the spectrometer 300.
[0040] It should also be noted that, in this embodiment, the angle adjustment of the collimating lens barrel 200 includes adjusting the up and down pitch angles of the collimating lens barrel 200 , and also includes adjusting the left and right deflection angles of the collimating lens barrel 200 .
[0041] Please continue to refer to Figure 2 In this embodiment, the collimating lens barrel 200 may include a barrel body 210 and a flange 220 surrounding the barrel body 210 , wherein a side of the flange 220 facing the side wall 110 forms a mounting end surface 221 , and a plurality of adjusting screw holes 222 are opened in the flange 220 .
[0042] This structural form of the collimating lens barrel 200 not only ensures the reliability of the connection with the side wall 110, but also does not increase the external dimensions of the barrel body 210, so that the collimating lens barrel 200 is still applicable to the original collimating lens and its installation structure.
[0043] In this embodiment, the barrel 210 and the flange 220 can be an integral structure, that is, the collimating lens barrel 200 is an integrally formed part. In other embodiments, the barrel 210 and the flange 220 can also be set as separate parts, and the collimating lens barrel 200 is obtained by fixing the barrel 210 and the flange 220 together.
[0044] like Figure 4 As shown, in this embodiment, the cylinder 210 includes a large diameter section 211 and a small diameter section 212 arranged along its own axial direction, wherein the side wall 110 of the shell 100 is provided with a through hole 130, the through hole 130 is opposite to the cylinder 210 along the axial direction of the cylinder 210, and the small diameter section 212 is penetrated through the through hole 130.
[0045] When assembling and connecting the collimating lens barrel 200 and the housing 100, the small diameter section 212 of the collimating lens barrel 200 can be inserted into the through hole 130 of the side wall 110 of the housing 100, and the through hole 130 can be used to provide a certain limiting support for the collimating lens barrel 200, so as to improve the assembly efficiency of the collimating lens barrel 200.
[0046] It should be noted that, in this embodiment, the large diameter section 211 and the small diameter section 212 of the cylinder 210 are relative. The large diameter section 211 refers to the portion of the cylinder 210 with a larger outer diameter, and the small diameter section 212 refers to the portion of the cylinder 210 with a smaller outer diameter.
[0047] Please continue to refer to Figure 2 In this embodiment, the adjusting screw hole 222 is a through hole structure that penetrates the flange 220 along the axial direction of the cylinder 210 .
[0048] This arrangement of the adjusting screw hole 222 allows for smooth chip removal during machining, facilitating machining.
[0049] Please continue to refer to Figure 2 In this embodiment, the mounting end surface 221 is in abutment with the side wall 110 . That is, when the collimating lens barrel 200 is assembled to the side wall 110 of the housing 100 , the flange 220 of the collimating lens barrel 200 is in close contact with the side wall 110 .
[0050] The above arrangement can play a certain role in limiting the axial movement of the collimating lens barrel 200 , thereby preventing the collimating lens barrel 200 from axially moving toward the side wall 110 after being installed in the housing 100 .
[0051] Please continue to refer to Figure 2 and Figure 4In this embodiment, the large diameter section 211 and the flange 220 are both disposed inside the housing 100 . That is, when the collimating lens barrel 200 is assembled to the side wall 110 of the housing 100 , the main structure of the collimating lens barrel 200 is accommodated inside the housing 100 .
[0052] The above arrangement can realize the concealed installation of the collimating lens barrel 200 in the optical coupler. By utilizing the outer shell 100 to accommodate the collimating lens barrel 200, on the one hand, it can reduce the space occupied by the collimating lens barrel 200 around the outer shell 100, which is beneficial to reducing the overall size of the optical coupler. On the other hand, it can also play a certain protective role for the collimating lens barrel 200 and the collimating lens inside it.
[0053] Please continue to refer to Figure 2 and Figure 4 In this embodiment, the flange 220 is a circular ring structure.
[0054] This structural form of the flange 220 is not only convenient for processing and manufacturing, but also can prevent sharp edges from scratching operators.
[0055] Please continue to refer to Figure 2 In this embodiment, the plurality of adjusting screw holes 222 are arranged at equal intervals around the axial direction of the collimating lens barrel 200. In other words, the plurality of adjusting light holes 120 are arranged at equal intervals around the through hole 130.
[0056] By arranging the plurality of adjusting screw holes 222 at equal intervals around the axial direction of the collimating lens barrel 200, when the collimating lens barrel 200 is finally fixed to the side wall 110 of the housing 100 by means of adjusting bolts, the collimating lens barrel 200 is subjected to a more uniform force along its circumference, thereby effectively avoiding load concentration.
[0057] Preferably, in this embodiment, the number of the adjusting screw holes 222 is three, and accordingly, the number of the adjusting light holes 120 is also three, and the positions of the three adjusting light holes 120 correspond to the positions of the three adjusting screw holes 222; the number of the adjusting bolts is also three.
[0058] The above-mentioned number of adjusting screw holes 222 can, on the one hand, avoid the situation where the manufacturing cost is high due to too many screw holes, and on the other hand, avoid the situation where the angle adjustment accuracy of the collimating lens barrel 200 and the connection reliability between the collimating lens barrel 200 and the side wall 110 are reduced due to too few screw holes.
[0059] In addition, this embodiment also provides a laser medical device, including a laser, a medical optical fiber and the above-mentioned optical coupler, wherein the laser is arranged at the light input end of the optical coupler, and the medical optical fiber is arranged at the light output end of the optical coupler.
[0060] The laser medical device adopts the above-mentioned optical coupler. In actual application, the light beam emitted by the laser enters the optical coupler and is finally output by the medical optical fiber. Therefore, the laser medical device has all the advantages of the above-mentioned optical coupler, which will not be described one by one here.
[0061] Although the utility model is disclosed as above, the utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the scope defined by the claims.
[0062] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.
[0063] In the above embodiments, the descriptions of directions such as “upper”, “lower”, “side”, etc. are all based on the drawings.
[0064] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An optical coupler, characterized in that: The invention comprises a housing (100), a collimating lens barrel (200) and a plurality of adjusting bolts, wherein the housing (100) has a side wall (110), the collimating lens barrel (200) has a mounting end face (221) facing the side wall (110), the mounting end face (221) is provided with a plurality of adjusting screw holes (222), the plurality of adjusting screw holes (222) are arranged at intervals around the axial direction of the collimating lens barrel (200), and the number of the adjusting bolts is the same as the number of the adjusting screw holes (222); the side wall (110) is provided with a plurality of adjusting light holes (120), the number of the adjusting light holes (120) is the same as the number of the adjusting screw holes (222) and the positions thereof correspond one to one, and the plurality of adjusting bolts are respectively and one to one passed through the plurality of adjusting light holes (120) and screwed into the corresponding adjusting screw holes (222).
2. The optical coupler according to claim 1, characterized in that The collimating lens barrel (200) comprises a barrel body (210) and a flange (220) surrounding the barrel body (210); a side of the flange (220) facing the side wall (110) forms the mounting end surface (221); and a plurality of adjusting screw holes (222) are provided on the flange (220).
3. The optical coupler according to claim 2, characterized in that The cylinder (210) comprises a large-diameter section (211) and a small-diameter section (212) arranged along its own axial direction; the side wall (110) is provided with a through hole (130); the through hole (130) is opposite to the cylinder (210) along the axial direction of the cylinder (210); and the small-diameter section (212) is passed through the through hole (130).
4. The optical coupler according to claim 2, characterized in that: The adjusting screw hole (222) is a through hole structure that penetrates the flange (220) along the axial direction of the cylinder (210).
5. The optical coupler according to claim 3, characterized in that: The mounting end surface (221) is in abutment with the side wall (110).
6. The optical coupler according to claim 3, characterized in that: The large diameter section (211) and the flange (220) are both arranged inside the housing (100).
7. The optical coupler according to claim 2, characterized in that: The flange (220) is a circular ring structure.
8. The optical coupler according to claim 1, characterized in that The plurality of adjusting screw holes (222) are arranged at equal intervals around the axial direction of the collimating lens barrel (200).
9. The optical coupler according to claim 1, characterized in that: The number of the adjusting screw holes (222) is three.
10. A laser medical device, characterized in that: It comprises a laser, a medical optical fiber and the optical coupler according to any one of claims 1 to 9, wherein the laser is arranged at the light input end of the optical coupler, and the medical optical fiber is arranged at the light output end of the optical coupler.