Laser fiber output beam expanding device
By designing a laser fiber output beam expansion device, the combination of the double concave lens and light guide column of the light guide assembly is solved, and the uniform distribution of laser energy and power are achieved, which is suitable for irradiation needs of different areas.
Patent Information
- Application Number
- CN202422288746.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-19
AI Technical Summary
When used, due to its concentrated irradiation, the energy output from the fiber cannot be evenly distributed to the surface to be irradiated.
A laser fiber output beam expansion device is designed, and the beam expansion processing of the laser fiber output is realized through the combination of a light guide assembly including a double concave lens and a light guide column, so that the laser energy output by the optical fiber is evenly distributed.
The laser energy distribution and power distribution of the fiber output are achieved, which is suitable for illumination needs of different areas. The specifications of the biconcave lens and light guide column can be adaptively replaced as needed.
Smart Images
Figure CN223022428U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of laser optical fibers, and particularly relates to a laser optical fiber output beam expanding device. Background Art
[0002] When a laser optical fiber is applied, since its irradiation is relatively concentrated, when it is necessary to irradiate a relatively large area, only a relatively concentrated point can be irradiated, resulting in the energy output from the optical fiber not being evenly distributed on the surface to be irradiated.
[0003] Therefore, a laser optical fiber output beam expanding device is developed to solve the above problems. Content of the Utility Model
[0004] The utility model provides a laser optical fiber output beam expanding device to solve the problem that the energy output from the existing optical fiber cannot be evenly distributed on the surface to be irradiated.
[0005] The utility model realizes the above purpose through the following technical solutions:
[0006] A laser optical fiber output beam expanding device includes:
[0007] A handle, the handle has a hollow structure inside;
[0008] An optical fiber, the optical fiber is horizontally arranged, the optical fiber extends into the inside of the handle from one end of the handle, and extends out of the handle from the other end of the handle;
[0009] A light guiding component, the light guiding component includes a biconcave lens, a first connecting component, a light guiding column and a second connecting component. The biconcave lens is arranged on the first connecting component. One end of the first connecting component is detachably connected to the other end of the handle. The positive concave surface of the biconcave lens faces the optical fiber, and the center point of the biconcave lens is aligned with the central axis of the optical fiber. The light guiding column is horizontally arranged, the light guiding column is arranged on the second connecting component, one end of the second connecting component is connected to the other end of the first connecting component, the negative concave surface of the biconcave lens faces one end face of the light guiding column, the central axis of the light guiding column is on the same horizontal line as the central axis of the optical fiber, and the diameter of the light guiding column is larger than the diameter of the biconcave lens.
[0010] Further, the first connecting component includes a fixing ring and a first internally threaded pipe joint. The biconcave lens is vertically clamped in the through hole of the fixing ring. One end port of the fixing ring is connected and communicated with the first internally threaded pipe joint. The other end of the handle is provided with a first externally threaded pipe joint, and the first internally threaded pipe joint is threadedly connected with the first externally threaded pipe joint.
[0011] Further, the first connection component further includes a second internally threaded pipe joint. The other end port of the fixing ring is connected to and communicates with the second internally threaded pipe joint. The second connection component includes a fixing cylinder and a second externally threaded pipe joint. The second externally threaded pipe joint is connected to and communicates with one end port of the fixing cylinder. The light guide column is horizontally arranged in the hollow channel of the fixing cylinder, and the second externally threaded pipe joint is threadedly connected to the second internally threaded pipe joint.
[0012] Further, the first connection component further includes a lens limiting ring. The lens limiting ring is clamped on the inner circumference of the second internally threaded pipe joint. The lens limiting ring is arranged between the biconcave lens and the light guide column. The middle part of the lens limiting ring is a channel with a diameter gradually increasing from small to large. The small-diameter end of the channel faces the concave surface of the biconcave lens, and the large-diameter end of the channel faces one end face of the light guide column.
[0013] Further, the second connection component further includes a third externally threaded pipe joint and a light guide column limiting ring. The third externally threaded pipe joint is connected to and communicates with the other end port of the fixing cylinder. The inner part of the light guide column limiting ring is provided with an internal thread structure. The third externally threaded pipe joint is threadedly connected to the light guide column limiting ring through the internal thread structure. The through hole of the light guide column limiting ring faces the other end face of the light guide column.
[0014] Preferably, the light guide column is a K9 light guide column.
[0015] The beneficial effects of the present utility model are as follows:
[0016] Through the action of the light guide component, the laser fiber output beam expanding device of the present utility model can expand the laser originally output concentratedly by the optical fiber, so that the laser energy output by the optical fiber is uniform, can be evenly distributed on the surface to be irradiated, and the power is evenly distributed. Moreover, the specifications of the biconcave lens and the light guide column can be adaptively replaced according to the area to be irradiated. Description of the Drawings
[0017] Figure 1 It is a structural diagram of the laser fiber output beam expanding device of this application.
[0018] In the figure: 1 - handle; 110 - first externally threaded pipe joint; 2 - optical fiber; 3 - fixing ring; 310 - first internally threaded pipe joint; 320 - second internally threaded pipe joint; 4 - biconcave lens; 5 - lens limiting ring; 6 - fixing cylinder; 610 - second externally threaded pipe joint; 620 - third externally threaded pipe joint; 7 - light guide column; 8 - light guide column limiting ring; 810 - internal thread structure. Detailed Embodiments
[0019] 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 with reference to the accompanying 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. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings herein can be arranged and designed in various different configurations.
[0020] 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 claimed present utility model, but merely represents 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 shall fall within the scope of protection of the present utility model.
[0021] It should be noted that: like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0022] 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 when the product of this utility model is normally placed, 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 element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.
[0023] In addition, the terms "first", "second", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.
[0024] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, 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 elements. 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.
[0025] The following will specifically describe the embodiments of the present utility model with reference to the accompanying drawings.
[0026] As Figure 1 shown, a laser fiber output beam expanding device in this embodiment includes:
[0027] A handle 1, and the handle 1 has a hollow structure inside;
[0028] An optical fiber 2, the optical fiber 2 is horizontally arranged, the optical fiber 2 extends into the interior of the handle 1 from one end of the handle 1, and extends out of the handle 1 from the other end of the handle 1;
[0029] A light guiding assembly, the light guiding assembly includes a biconcave lens 4, a first connecting assembly, a light guiding column 7 and a second connecting assembly, the biconcave lens 4 is arranged on the first connecting assembly, one end of the first connecting assembly is detachably connected to the other end of the handle 1, the positive concave surface of the biconcave lens 4 faces the optical fiber 2, the center point of the biconcave lens 4 is aligned with the central axis of the optical fiber 2, the light guiding column 7 is horizontally arranged, the light guiding column 7 is arranged on the second connecting assembly, one end of the second connecting assembly is connected to the other end of the first connecting assembly, the negative concave surface of the biconcave lens 4 faces one end face of the light guiding column 7, the central axis of the light guiding column 7 and the central axis of the optical fiber 2 are on the same horizontal line, and the diameter of the light guiding column 7 is larger than the diameter of the biconcave lens 4.
[0030] The light beam emitted by the optical fiber 2 is expanded by the biconcave lens 4, and then is exported parallelly and uniformly through the light guiding column 7, thereby realizing the expansion of the light beam emitted by the optical fiber 2.
[0031] As Figure 1 shown, in some embodiments, the first connecting assembly includes a fixing ring 3 and a first internally threaded joint 310, the biconcave lens 4 is vertically clamped in the through hole of the fixing ring 3, one end port of the fixing ring 3 is connected and communicated with the first internally threaded joint 310, the other end of the handle 1 is provided with a first externally threaded joint 110, and the first internally threaded joint 310 is threadedly connected to the first externally threaded joint 110.
[0032] As Figure 1 shown, in some embodiments, the first connecting assembly further includes a second internally threaded joint 320, the other end port of the fixing ring 3 is connected and communicated with the second internally threaded joint 320, the second connecting assembly includes a fixing cylinder 6 and a second externally threaded joint 610, the second externally threaded joint 610 is connected and communicated with one end port of the fixing cylinder 6, the light guiding column 7 is horizontally arranged in the hollow channel of the fixing cylinder 6, and the second externally threaded joint 610 is threadedly connected to the second internally threaded joint 320.
[0033] As Figure 1As shown, in some embodiments, the first connection component further includes a lens limiting ring 5, which is clamped on the inner circumference of the second internally threaded connecting pipe 320. The lens limiting ring 5 is arranged between the double concave lens 4 and the light guide column 7. The middle part of the lens limiting ring 5 is a channel with a diameter increasing from small to large. The small-diameter end of the channel faces the concave surface of the double concave lens 4, and the large-diameter end of the channel faces one end face of the light guide column 7.
[0034] As Figure 1 As shown, in some embodiments, the second connection component further includes a third externally threaded connecting pipe 620 and a light guide column limiting ring 8. The third externally threaded connecting pipe 620 is connected and communicated with the other end port of the fixed cylinder 6. The inner part of the light guide column limiting ring 8 is provided with an internal thread structure 810. The third externally threaded connecting pipe 620 and the light guide column limiting ring 8 are threadedly connected through the internal thread structure 810. The through hole of the light guide column limiting ring 8 faces the other end face of the light guide column 7.
[0035] In some embodiments, it is preferred that the light guide column 7 is a K9 light guide column 7.
[0036] The beneficial effects of the present utility model are as follows:
[0037] Through the action of the light guiding component, a laser fiber output beam expanding device of the present utility model can expand the laser originally output concentrated by the optical fiber, so that the laser energy output by the optical fiber is uniform, can be evenly distributed on the surface to be irradiated, and the power is evenly distributed. Moreover, the specifications of the double concave lens and the light guide column can be adaptively replaced according to the area to be irradiated.
[0038] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.
Claims
1. A laser fiber output beam expansion device, characterized in that: include: A handle (1), wherein the handle (1) is an internal hollow structure; An optical fiber (2), the optical fiber (2) being arranged horizontally, the optical fiber (2) extending from one end of the handle (1) into the interior of the handle (1), and extending from the other end of the handle (1) to the outside of the handle (1); A light guide component, the light guide component comprising a biconcave lens (4), a first connecting component, a light guide column (7) and a second connecting component, the biconcave lens (4) being arranged on the first connecting component, one end of the first connecting component being detachably connected to the other end of the handle (1), the positive concave surface of the biconcave lens (4) facing the optical fiber (2), the center point of the biconcave lens (4) being aligned with the center axis of the optical fiber (2), the light guide column (7) being arranged horizontally, the light guide column (7) being arranged on the second connecting component, one end of the second connecting component being connected to the other end of the first connecting component, the negative concave surface of the biconcave lens (4) facing one end face of the light guide column (7), the center axis of the light guide column (7) being on the same horizontal line as the center axis of the optical fiber (2), and the diameter of the light guide column (7) being larger than the diameter of the biconcave lens (4).
2. A laser fiber output beam expansion device according to claim 1, characterized in that: The first connecting assembly comprises a fixing ring (3) and a first internally threaded pipe (310); the biconcave lens (4) is vertically clamped in a through hole of the fixing ring (3); one end port of the fixing ring (3) is connected to and communicates with the first internally threaded pipe (310); the other end of the handle (1) is provided with a first externally threaded pipe (110); the first internally threaded pipe (310) is threadedly connected to the first externally threaded pipe (110).
3. A laser fiber output beam expansion device according to claim 2, characterized in that: The first connection component further comprises a second internally threaded pipe (320), the other end port of the fixing ring (3) being connected to and in communication with the second internally threaded pipe (320), the second connection component comprises a fixing tube (6) and a second externally threaded pipe (610), the second externally threaded pipe (610) being connected to and in communication with one end port of the fixing tube (6), the light guide column (7) being horizontally arranged in the hollow channel of the fixing tube (6), and the second externally threaded pipe (610) being threadedly connected to the second internally threaded pipe (320).
4. A laser fiber output beam expansion device according to claim 3, characterized in that: The first connection assembly further comprises a lens stop ring (5), the lens stop ring (5) being clamped on the inner circumference of the second internally threaded pipe (320), the lens stop ring (5) being arranged between the biconcave lens (4) and the light guide column (7), the middle portion of the lens stop ring (5) being a channel whose diameter changes from small to large, the small-diameter end of the channel facing the reverse concave surface of the biconcave lens (4), and the large-diameter end of the channel facing one end surface of the light guide column (7).
5. The laser fiber output beam expansion device according to claim 3, characterized in that: The second connection assembly further comprises a third externally threaded pipe (620) and a light guide column limiting ring (8); the third externally threaded pipe (620) is connected to and communicates with the other end port of the fixing tube (6); an internally threaded structure (810) is provided inside the light guide column limiting ring (8); the third externally threaded pipe (620) and the light guide column limiting ring (8) are threadedly connected via the internally threaded structure (810); and the through hole of the light guide column limiting ring (8) is directly opposite to the other end face of the light guide column (7).
6. The laser fiber output beam expansion device according to claim 1, characterized in that: The light guide column (7) is a K9 light guide column.