Input light processing device

Abstract

The invention discloses an input light processing device, which is used for realizing light coupling when light is input along a first direction, and is used for realizing light collimation when light is input along a direction opposite to the first direction, and comprises a first light processing structure, a second light processing structure, a second light processing structure, a third light processing structure and a fourth light processing structure, the second light processing structure is internally provided with a second light channel opposite to the first light channel; the second light processing structure is also provided with a light hole for communicating the first light channel with the second light channel; the lens is arranged at the tail end of the first optical channel in the first direction; the side, facing the light-transmitting hole, of the lens is a plane, the side, away from the light-transmitting hole, of the lens is a spherical surface, and the spherical focal point of the lens is located in the light-transmitting hole. When light is input to the first light channel in the first direction, coupled light is output through the second light channel; when light is input to the second light channel and in the direction opposite to the first direction, collimated light is output through the first light channel. Light coupling or collimation can be realized through one set of equipment, and parts are reduced.

Description

Technical Field

[0001] This invention relates to the field of optical device adjustment, and more specifically, to an input light processing device. Background Technology

[0002] In optical communication modules, lidar, and precision optical sensing systems, efficient coupling and collimation of optical signals are two crucial fundamental operations. For example, in optical transceiver components, it is necessary to efficiently couple the light emitted by the laser chip into a single-mode fiber for transmission. Simultaneously, it is also necessary to convert the received fiber output light into a high-quality collimated beam for subsequent detection by isolators, filters, and other components. These two functions have a decisive impact on the system's insertion loss, signal-to-noise ratio, and stability.

[0003] Currently, the mainstream solutions for achieving the above two functions typically employ a combination of discrete optical components. A typical approach is to use a collimating lens and a focusing lens to perform collimation and focusing of light respectively, and then use a precise mechanical structure to spatially arrange and align these two optical subsystems.

[0004] However, this architecture results in a long optical path, a large number of components, and a complex and bulky overall structure. Each assembly involves fine adjustments of multiple degrees of freedom, which not only leads to low production efficiency and high costs, but also makes the system performance more sensitive to vibration and temperature drift, posing challenges to long-term reliability. Summary of the Invention

[0005] The purpose of this invention is to provide an input light processing device that can achieve light coupling or collimation with a single set of equipment, thereby reducing the number of components.

[0006] The embodiments of the present invention are implemented as follows: This application provides an input light processing device for achieving light coupling when light is input along a first direction and for achieving light collimation when light is input in the opposite direction to the first direction, comprising: The first light processing structure has a first light channel inside, which is a stepped aperture and its inner diameter decreases along the first direction. The second light processing structure has a second light channel inside that is opposite to the first light channel; the second light processing structure also has a light-transmitting hole to connect the first light channel and the second light channel. A lens is disposed at the end of the first light channel along the first direction; the side of the lens facing the light-transmitting hole is a plane, and the side away from the light-transmitting hole is a spherical surface, and the focal point of the spherical surface of the lens is located inside the light-transmitting hole; When light is input into the first optical channel along the first direction, coupled light is output through the second optical channel; when light is input into the second optical channel in the opposite direction to the first direction, collimated light is output through the first optical channel.

[0007] In a possible implementation, the lens includes a lens body and a spherical structure. The lens body is cylindrical, and the spherical structure is partially spherical and integrally connected to the side of the lens body. A mounting groove is provided in the first optical channel for mounting the lens body. In a possible implementation, the second light processing structure is further provided with a light shield, the light shield having a light shielding groove and communicating with the second light channel through the light-transmitting hole, and the end of the first light processing structure extending into the light shielding groove. In a possible implementation, a multi-axis adjuster is also included for adjusting the input or output light path of the first optical channel. In a possible implementation, the multi-axis adjuster includes an angle adjuster and a linear adjuster; the first light processing structure is boss-shaped, the angle adjuster is connected to the top surface of the boss, and the linear adjuster is connected to the side surface of the boss. In a possible implementation, the angle adjuster includes: The first angle adjustment mechanism includes a first screw and a first threaded cylinder; the first screw extends into the interior of the first threaded cylinder, and the two are connected by a threaded pair; the bottom end of the first threaded cylinder is connected to the top surface of the boss. The second angle adjustment mechanism includes a second screw and a second threaded cylinder; the second screw extends into the interior of the second threaded cylinder, and the two are connected by a threaded pair; the bottom end of the second threaded cylinder is connected to the top surface of the boss. The third angle adjustment mechanism includes a third screw and a third threaded cylinder; the third screw extends into the interior of the third threaded cylinder, and the two are connected by a threaded pair; the bottom end of the third threaded cylinder is connected to the top surface of the boss.

[0008] In possible implementations, it also includes: A cover plate is disposed opposite to the top surface of the boss; the cover plate is provided with a first operating hole, a second operating hole and a third operating hole respectively, and the heads of the first screw, the second screw and the third screw are respectively located in the first operating hole, the second operating hole and the third operating hole; A tension spring assembly includes multiple tension springs; the multiple tension springs are respectively disposed between the cover plate and the top surface of the boss, and their two ends are respectively connected to the cover plate and the top surface of the boss.

[0009] In a possible implementation, the first operating hole, the second operating hole, and the third operating hole are disposed at equal angles on the cover plate, and the plurality of tension springs are disposed at equal angles between the cover plate and the top surface of the boss.

[0010] In a possible implementation, the linear regulator includes: The first linear adjustment mechanism includes a fourth screw and a fourth threaded cylinder; the fourth screw extends into the interior of the fourth threaded cylinder, and the two are connected by a threaded pair; the bottom end of the fourth threaded cylinder is connected to the side of the boss. The second linear adjustment mechanism includes a fifth screw and a fifth threaded cylinder; the fifth screw extends into the interior of the fifth threaded cylinder, and the two are connected by a threaded pair; the bottom end of the fifth threaded cylinder is connected to the side of the boss. The first linear fixing mechanism includes a sixth screw and a sixth threaded cylinder; the sixth screw extends into the interior of the sixth threaded cylinder, and the two are connected by a threaded pair; the bottom end of the sixth threaded cylinder is connected to the side of the boss; wherein, the first linear adjustment mechanism, the second linear adjustment mechanism, and the first linear fixing mechanism are located in a horizontal plane and are arranged at equal angles. The second linear fixing mechanism is arranged perpendicular to the first linear adjusting mechanism and includes a seventh screw and a seventh threaded cylinder; the seventh screw extends into the interior of the seventh threaded cylinder and the two are connected by a threaded pair; the bottom end of the seventh threaded cylinder is connected to the fourth threaded cylinder. The third linear fixing mechanism is arranged perpendicular to the second linear adjusting mechanism and includes an eighth screw and an eighth threaded cylinder; the eighth screw extends into the interior of the eighth threaded cylinder and the two are connected by a threaded pair; the bottom end of the eighth threaded cylinder is connected to the fifth threaded cylinder.

[0011] In a possible implementation, the system further includes side plates, which together with the cover plate form placement spaces for placing the first light processing structure and the second light processing structure; the side plates are respectively provided with a fourth operating hole, a fifth operating hole, and a sixth operating hole, and the heads of the fourth screw, the fifth screw, and the sixth screw are respectively located in the fourth operating hole, the fifth operating hole, and the sixth operating hole; the cover plate is also provided with a seventh operating hole and an eighth operating hole, and the heads of the seventh screw and the eighth screw are respectively located in the seventh operating hole and the eighth operating hole.

[0012] The beneficial effects of the embodiments of the present invention are: This device integrates functions that traditionally require two separate optical components (one for coupling and the other for collimation) into a single unit. Through the arrangement and optical design of the first optical channel, lens, aperture, and second optical channel, the device can automatically switch between coupling and collimation based on the direction of light input (the first direction or its reverse). This significantly simplifies the internal architecture of optical modules (such as optical transceiver modules) and reduces the number of components. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a perspective view of the input light processing device according to an embodiment of the present invention. Figure 2 This is a perspective view of the input light processing device according to an embodiment of the present invention. Figure 3 This is a top view of the input light processing device according to an embodiment of the present invention; Figure 4 for Figure 3 A cross-sectional view along the AA direction, where the coupler is located; Figure 5 for Figure 3 A cross-sectional view along the AA direction, where the collimator is located; Figure 6 A perspective view of the internal structure of the input light processing device according to an embodiment of the present invention; Figure 7 for Figure 6 Top view.

[0015] Icons: 1. First light processing structure; 11. First light channel; 2. Second light processing structure; 21. Second light channel; 22. Light shield; 23. Light-transmitting hole; 3. Lens; 41. First angle adjustment mechanism; 411. First screw; 412. First threaded cylinder; 42. Second angle adjustment mechanism; 421. Second screw; 422. Second threaded cylinder; 43. Third angle adjustment mechanism; 431. Third screw; 432. Third threaded cylinder; 44. First linear adjustment mechanism; 441. Fourth screw; 442. Fourth threaded cylinder; 45. Second linear adjustment mechanism; 4 51. Fifth screw; 452. Fifth threaded cylinder; 46. First linear fixing mechanism; 461. Sixth screw; 462. Sixth threaded cylinder; 47. Second linear fixing mechanism; 471. Seventh screw; 472. Seventh threaded cylinder; 48. Third linear fixing mechanism; 481. Eighth screw; 482. Eighth threaded cylinder; 5. Cover plate; 51. First operating hole; 52. Second operating hole; 53. Third operating hole; 54. Seventh operating hole; 55. Eighth operating hole; 6. Tension spring; 7. Side plate; 71. Fourth operating hole; 72. Fifth operating hole; 73. Sixth operating hole. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0020] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0021] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] refer to Figures 1 to 7 This application provides an input light processing device for achieving light coupling when light is input along a first direction and for achieving light collimation when light is input in the opposite direction of the first direction. The device includes a first light processing structure 1 and a lens 3. The first light processing structure 1 has a first light channel 11 inside, which is stepped and its inner diameter decreases along the first direction. A second light channel 21 is also provided inside the first light processing structure 1, opposite to the first light channel 11. The second light processing structure 1 also has a light-transmitting hole 23 to connect the first light channel 11 and the second light channel 21. The lens 3 is located at the end of the first light channel 11 along the first direction. The side of the lens 3 facing the light-transmitting hole 23 is planar, and the side away from the light-transmitting hole 23 is spherical, with the focal point of the spherical lens 3 located within the light-transmitting hole 23. When light is input into the first light channel 11 along the first direction, coupled light is output through the second light channel 21. When light is input into the second light channel 21 in the opposite direction of the first direction, collimated light is output through the first light channel 11.

[0023] In this embodiment, the overall function of the system is determined by the direction of the light input. When the light is input along the first direction, i.e., from left to right (which can be understood as the forward direction of transmission from the laser to the optical fiber), the device acts as a coupler, aiming to efficiently converge the light emitted by the light source and guide it into an optical waveguide (such as an optical fiber). Conversely, when the light is input from the opposite direction, i.e., from right to left (which can be understood as the reverse direction of receiving the optical signal from the end of the optical fiber), the device acts as a collimator, aiming to convert the diverging beam output from the optical fiber into parallel light. This dual-purpose characteristic replaces the traditional two sets of independent optical elements with a single fixed device.

[0024] Specifically, in forward (coupling) mode: light enters from the larger end of the first optical channel 11. The first optical channel 11 is designed as a stepped aperture with its inner diameter decreasing along the first direction. This structure serves to initially converge the light beam and reduce stray light. After passing through lens 3, the light is refracted and converged due to its spherical surface. Since the spherical focal point of lens 3 is precisely set at the light-transmitting aperture 23, the light, which appears to originate from a virtual focal point on the other side of lens 3 from the perspective of the first channel, converges precisely at the real image point of the light-transmitting aperture 23 after passing through lens 3. The converged light spot then enters the size-matched second optical channel 21 through the light-transmitting aperture 23, thereby efficiently coupling into the subsequent optical waveguide.

[0025] In reverse (collimated) mode: Light enters through the second optical channel 21 and then through the aperture 23. Since the aperture 23 is located precisely at the focal point of the lens 3, it is optically equivalent to a point light source at the focal point. The diverging light emitted from this point light source, after passing through the same lens 3, is inevitably converted into parallel (collimated) light and emitted, according to the principles of geometric optics. The collimated light then exits through the first optical channel 11. Here, the "reduced inner diameter" structure of the first optical channel 11 effectively guides and constrains the already collimated beam, helping to maintain its collimation and suppress aperture diffraction effects.

[0026] The first optical channel 11 and the second optical channel 21 are aligned to ensure that the two optical paths are basically aligned on the mechanical axis, while the light-transmitting hole 23 connects the two to realize the optical path connection. All the features of the entire device—the optical channels with specific shapes, the lens 3 (plano-convex shape) located in a key position, and the relationship between the connecting hole and the focal point of the lens 3—are inseparable and combined to form a self-consistent optical function mapper without moving parts: the input port (direction) and the output optical state (coupled light / collimated light) are fixed in a one-to-one correspondence.

[0027] In some embodiments, the lens 3 includes a lens body and a spherical structure. The lens body is cylindrical, and the spherical structure is partially spherical and integrally connected to the side of the lens body. A mounting groove is provided in the first optical channel 11 to mount the lens body.

[0028] In this embodiment, the mounting groove provides a clearly defined axial stop surface for the cylindrical lens body. Once the lens 3 is pushed into the bottom of the groove, its axial position is determined. By precisely designing the depth of the mounting groove, the axial distance between the planar side (or spherical vertex) of the lens 3 and the light-transmitting aperture 23 can be directly controlled, ensuring that the focal length of the lens 3 matches the optical path length, thereby ensuring that the focal point falls precisely within the light-transmitting aperture 23.

[0029] In some embodiments, the second light processing structure 2 is further provided with a light shield 22, the light shield 22 is provided with a light shielding groove and communicates with the second light channel 21 through a light transmission hole 23, and the end of the first light processing structure 1 extends into the light shielding groove.

[0030] In this embodiment, the light-transmitting aperture 23 connects the first optical channel 11 and the second optical channel 21, and is also a relatively sensitive area of ​​the entire system. In actual use, ambient light may leak from the second optical channel 21 or its interface and directly illuminate the area surrounding the light-transmitting aperture 23, creating background noise. The added light shield 22 physically surrounds the light-transmitting aperture 23 and its connecting area, effectively blocking ambient light from entering the core optical path. In addition, during the transmission of optical signals (such as high-power lasers), scattering from the inner wall of the optical channel, diffraction from the edge of the lens 3, or reflection from non-ideal interfaces will generate stray light. If this stray light is reflected multiple times within the cavity, it may create noise or interfere with the main optical path. The light-shielding groove and the light shield 22 can absorb or block light arriving near the light-transmitting aperture 23 from non-central directions, suppressing stray light crosstalk within the optical cavity, thereby improving the purity and contrast of the output beam.

[0031] In some embodiments, a multi-axis adjuster is further included for adjusting the input or output light path of the first optical channel 11. The multi-axis adjuster includes an angle adjuster and a linear adjuster; the first optical processing structure 1 is boss-shaped, with the angle adjuster connected to the top surface of the boss and the linear adjuster connected to the side surface of the boss.

[0032] In this embodiment, the angle adjuster, by acting on the top surface of the first light processing structure 1, can directly control the tilt of the structure, together with the first light channel 11 and the end lens 3 inside it, in the pitch and yaw directions, thereby changing the direction of the entire optical axis and used to correct the angle deviation of the beam or adjust the angle of the optical path; the linear adjuster, by acting on the side of the boss, can drive the first light processing structure 1 to translate in a plane perpendicular to the optical axis, thereby correcting the lateral positional deviation between the light source or receiver and the light channel or adjusting the angle of the optical path.

[0033] In some embodiments, the angle adjuster includes: a first angle adjusting mechanism 41 (Zθ1), a second angle adjusting mechanism 42 (Zθ2), and a third angle adjusting mechanism 43 (Zθ3); the first angle adjusting mechanism 41 includes a first screw 411 and a first threaded cylinder 412; the first screw 411 extends into the first threaded cylinder 412 and the two are connected by a threaded pair, and the bottom end of the first threaded cylinder 412 is connected to the top surface of the boss; the second angle adjusting mechanism 42 includes a second screw 421 and a second threaded cylinder 422; the second screw 421 extends into the second threaded cylinder 422 and the two are connected by a threaded pair, and the bottom end of the second threaded cylinder 422 is connected to the top surface of the boss; the third angle adjusting mechanism 43 includes a third screw 431 and a third threaded cylinder 432; the third screw 431 extends into the third threaded cylinder 432 and the two are connected by a threaded pair, and the bottom end of the third threaded cylinder 432 is connected to the top surface of the boss.

[0034] In this embodiment, each mechanism consists of a screw and a threaded cylinder connected by a threaded pair. When the screw is rotated, the screw tip undergoes precise axial linear displacement relative to the fixed threaded cylinder through the helical drive of the threaded pair. Since the bottom end of the threaded cylinder is connected to the top surface of the boss, this minute linear thrust or pull will act directly on a specific point on the top surface of the boss.

[0035] By arranging three such adjustment points on the top surface of the boss (which can be distributed in a triangle), the tilt attitude of a first optical processing structure 1 in space can be constrained and controlled. By turning the first screw 411, the second screw 421, and the third screw 431 respectively, the height of their respective points of action can be changed, and the tilt angle of the boss (and its internal optical path) can be driven precisely and independently, thereby achieving minute adjustments to the pitch and yaw angles.

[0036] In addition, the threaded joint itself has a frictional self-locking characteristic. Once adjusted, the static friction between the screw and the threaded cylinder can effectively resist external vibration or stress relaxation, locking the adjusted angle at the current position and ensuring long-term stability.

[0037] The top of the entire fixed component is held in place by three set screws and three tension springs. Each set screw ensures that tightening it raises the apex and loosening it lowers the apex. These three points determine the spatial state of the plane. When the heights of the three support points are different, angular deflection will occur. The required angle adjustments for θX and θY can be achieved by adjusting Zθ1, Zθ2, and Zθ3 together. When it is necessary to coordinate the linear height of the Z-axis without needing to deflect the angle, tighten the three set screws Zθ1, Zθ2, and Zθ3 to the same height to complete the adjustment.

[0038] In some embodiments, the assembly further includes: a cover plate 5 and a tension spring assembly. The cover plate 5 is disposed opposite to the top surface of the boss; the cover plate 5 is provided with a first operating hole 51, a second operating hole 52, and a third operating hole 53, and the heads of the first screw 411, the second screw 421, and the third screw 431 are respectively located in the first operating hole 51, the second operating hole 52, and the third operating hole 53; the tension spring assembly includes a plurality of tension springs 6; the plurality of tension springs 6 are respectively disposed between the cover plate 5 and the top surface of the boss, and their two ends are respectively connected to the cover plate 5 and the top surface of the boss. The first operating hole 51, the second operating hole 52, and the third operating hole 53 are disposed at equal angles on the cover plate 5, and the plurality of tension springs 6 are disposed at equal angles between the cover plate 5 and the top surface of the boss.

[0039] In this embodiment, the three operating holes on the cover plate 5 provide access points for adjustment tools (such as Allen wrenches). This prevents the tool from slipping during adjustment and damaging the screw head or other optical components, greatly improving the operability and safety of the adjustment operation. During assembly, the pre-tension of the tension spring 6 first brings the boss to an initial, balanced position close to the screw end. During adjustment, the operator rotates the screw through the operating holes on the cover plate 5, overcoming the tension of the tension spring 6 to precisely lift a portion of the boss. Due to the presence of the tension spring 6, the adjustment process is free of backlash and provides a clear feel. After adjustment, the system automatically locks in a balanced state, achieving not only precise angle adjustment but also ensuring the long-term retention of the adjustment result and stability in complex environments.

[0040] In some embodiments, the linear adjuster includes: a first linear adjustment mechanism 44, a second linear adjustment mechanism 45, a first linear fixing mechanism 46, a second linear fixing mechanism 47, and a third linear fixing mechanism 48; the first linear adjustment mechanism 44 includes a fourth screw 441 and a fourth threaded cylinder 442; the fourth screw 441 extends into the fourth threaded cylinder 442, and the two are connected by a threaded pair, with the bottom end of the fourth threaded cylinder 442 connected to the side of the boss; the second linear adjustment mechanism 45 includes a fifth screw 451 and a fifth threaded cylinder 452; the fifth screw 451 extends into the fifth threaded cylinder 452, and the two are connected by a threaded pair, with the bottom end of the fifth threaded cylinder 452 connected to the side of the boss; the first linear fixing mechanism 46 includes a sixth screw 461 and a sixth threaded cylinder 462; the sixth screw 461 extends into the sixth threaded cylinder 462. Furthermore, the two are connected by a threaded pair, and the bottom end of the sixth threaded cylinder 462 is connected to the side of the boss; wherein, the first linear adjustment mechanism 44, the second linear adjustment mechanism 45 and the first linear fixing mechanism 46 are located in the horizontal plane and are set at equal angles; the second linear fixing mechanism 47 is set perpendicular to the first linear adjustment mechanism 44 and includes a seventh screw 471 and a seventh threaded cylinder 472; the seventh screw 471 extends into the interior of the seventh threaded cylinder 472 and the two are connected by a threaded pair, and the bottom end of the seventh threaded cylinder 472 is connected to the fourth threaded cylinder 442; the third linear fixing mechanism 48 is set perpendicular to the second linear adjustment mechanism 45 and includes an eighth screw 481 and an eighth threaded cylinder 482; the eighth screw 481 extends into the interior of the eighth threaded cylinder 482 and the two are connected by a threaded pair, and the bottom end of the eighth threaded cylinder 482 is connected to the fifth threaded cylinder 452.

[0041] Furthermore, a side plate 7 is provided, which, together with the cover plate 5, forms a placement space for placing the first light processing structure 1 and the second light processing structure 2; the side plate 7 is provided with a fourth operating hole 71, a fifth operating hole 72 and a sixth operating hole 73, and the heads of the fourth screw 441, the fifth screw 451 and the sixth screw 461 are located in the fourth operating hole 71, the fifth operating hole 72 and the sixth operating hole 73, respectively; the cover plate 5 is also provided with a seventh operating hole 54 and an eighth operating hole 55, and the heads of the seventh screw 471 and the eighth screw 481 are located in the seventh operating hole 54 and the eighth operating hole 55, respectively.

[0042] Optionally, all the above set screws use fine threads with a pitch of 0.25, that is, the adjustment height is 0.25mm for one feed turn, controlling the adjustment accuracy to the level of 0.01mm, and ensuring the positional accuracy of the adjustment.

[0043] The first linear adjustment mechanism 44, the second linear adjustment mechanism 45, and the third linear adjustment mechanism are arranged at equal angles, i.e., the angles between them are all 120°. The first linear adjustment mechanism 44 is along the X-axis, the second linear adjustment mechanism 45 is along the Y-axis, and the third linear adjustment mechanism is along the Z-axis. The specific adjustment process is as follows: To adjust the X-axis, turn the X-axis adjusting set screw counterclockwise. Tightening the screw in will cause the adjusting component to move to the right for positive X-axis adjustment. Conversely, turn the X-axis adjusting set screw clockwise. Tightening the screw out or in will cause the adjusting component to move to the left for reverse X-axis adjustment.

[0044] Y-axis adjustment: Tighten the Y-axis adjustment set screw counterclockwise. The screw is screwed in, driving the adjustment component inward for positive Y-axis adjustment; conversely, tighten the Y-axis adjustment set screw clockwise. The screw is screwed out or screwed in, driving the adjustment component outward for reverse Y-axis adjustment.

[0045] The third linear adjustment mechanism plays a fixing role. During the adjustment of the X-axis or Y-axis, the third linear adjustment mechanism clamps the first light processing structure 1 together with the X-axis or Y-axis in the Z-axis direction to avoid large deviations.

[0046] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An input light processing device, characterized in that, When light is input along the first direction, it is used to achieve light coupling; when light is input along the opposite direction of the first direction, it is used to achieve light collimation, including: The first light processing structure has a first light channel inside, which is a stepped aperture and its inner diameter decreases along the first direction. The second light processing structure has a second light channel inside that is opposite to the first light channel; the second light processing structure also has a light-transmitting hole to connect the first light channel and the second light channel. A lens is disposed at the end of the first light channel along the first direction; the side of the lens facing the light-transmitting hole is a plane, and the side away from the light-transmitting hole is a spherical surface, and the focal point of the spherical surface of the lens is located inside the light-transmitting hole; When light is input into the first optical channel along the first direction, coupled light is output through the second optical channel; when light is input into the second optical channel in the opposite direction to the first direction, collimated light is output through the first optical channel.

2. The input light processing device according to claim 1, characterized in that, The lens includes a lens body and a spherical structure. The lens body is cylindrical, and the spherical structure is partially spherical and integrally connected to the side of the lens body. A mounting groove is provided in the first optical channel for mounting the lens body.

3. The input light processing device according to claim 1, characterized in that, The second light processing structure is further provided with a light shield, the light shield has a light shielding groove and is connected to the second light channel through the light transmission hole, and the end of the first light processing structure extends into the light shielding groove.

4. The input light processing apparatus according to any one of claims 1 or 3, characterized in that, It also includes a multi-axis adjuster for adjusting the light input path or light output path of the first optical channel.

5. The input light processing device according to claim 4, characterized in that, The multi-axis adjuster includes an angle adjuster and a linear adjuster; the first light processing structure is in the shape of a boss, the angle adjuster is connected to the top surface of the boss, and the linear adjuster is connected to the side surface of the boss.

6. The input light processing apparatus according to claim 5, characterized in that, The angle adjuster includes: The first angle adjustment mechanism includes a first screw and a first threaded cylinder; the first screw extends into the interior of the first threaded cylinder, and the two are connected by a threaded pair; the bottom end of the first threaded cylinder is connected to the top surface of the boss. The second angle adjustment mechanism includes a second screw and a second threaded cylinder; the second screw extends into the interior of the second threaded cylinder, and the two are connected by a threaded pair; the bottom end of the second threaded cylinder is connected to the top surface of the boss. The third angle adjustment mechanism includes a third screw and a third threaded cylinder; the third screw extends into the interior of the third threaded cylinder, and the two are connected by a threaded pair; the bottom end of the third threaded cylinder is connected to the top surface of the boss.

7. The input light processing apparatus according to claim 6, characterized in that, Also includes: A cover plate is disposed opposite to the top surface of the boss; the cover plate is provided with a first operating hole, a second operating hole and a third operating hole respectively, and the heads of the first screw, the second screw and the third screw are respectively located in the first operating hole, the second operating hole and the third operating hole; A tension spring assembly includes multiple tension springs; the multiple tension springs are respectively disposed between the cover plate and the top surface of the boss, and their two ends are respectively connected to the cover plate and the top surface of the boss.

8. The input light processing apparatus according to claim 7, characterized in that, The first operating hole, the second operating hole, and the third operating hole are disposed at equal angles on the cover plate, and the plurality of tension springs are disposed at equal angles between the cover plate and the top surface of the boss.

9. The input light processing apparatus according to claim 7, characterized in that, The linear regulator includes: The first linear adjustment mechanism includes a fourth screw and a fourth threaded cylinder; the fourth screw extends into the interior of the fourth threaded cylinder, and the two are connected by a threaded pair; the bottom end of the fourth threaded cylinder is connected to the side of the boss. The second linear adjustment mechanism includes a fifth screw and a fifth threaded cylinder; the fifth screw extends into the interior of the fifth threaded cylinder, and the two are connected by a threaded pair; the bottom end of the fifth threaded cylinder is connected to the side of the boss. The first linear fixing mechanism includes a sixth screw and a sixth threaded cylinder; the sixth screw extends into the interior of the sixth threaded cylinder, and the two are connected by a threaded pair; the bottom end of the sixth threaded cylinder is connected to the side of the boss; wherein, the first linear adjustment mechanism, the second linear adjustment mechanism, and the first linear fixing mechanism are located in a horizontal plane and are arranged at equal angles. The second linear fixing mechanism is arranged perpendicular to the first linear adjusting mechanism and includes a seventh screw and a seventh threaded cylinder; the seventh screw extends into the interior of the seventh threaded cylinder and the two are connected by a threaded pair; the bottom end of the seventh threaded cylinder is connected to the fourth threaded cylinder. The third linear fixing mechanism is arranged perpendicular to the second linear adjusting mechanism and includes an eighth screw and an eighth threaded cylinder; the eighth screw extends into the interior of the eighth threaded cylinder and the two are connected by a threaded pair; the bottom end of the eighth threaded cylinder is connected to the fifth threaded cylinder.

10. The input light processing apparatus according to claim 9, characterized in that, It also includes side plates, which together with the cover plate form placement spaces for placing the first light processing structure and the second light processing structure; the side plates are respectively provided with a fourth operating hole, a fifth operating hole and a sixth operating hole, and the heads of the fourth screw, the fifth screw and the sixth screw are respectively located in the fourth operating hole, the fifth operating hole and the sixth operating hole; the cover plate is also provided with a seventh operating hole and an eighth operating hole, and the heads of the seventh screw and the eighth screw are respectively located in the seventh operating hole and the eighth operating hole.

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