Laser emission device and ophthalmic system

Abstract

The present application relates to a laser emission device and an ophthalmic system, and relates to the field of positioning optical technology. The laser emission device includes: a moving member is provided with a convex block on one side along a first direction, and the convex block includes a mounting portion and a deflection portion arranged along the first direction; a support member is located on the side of the moving member where the convex block is provided and is spaced apart from the moving member, and a receiving cavity is provided on the support member, and the deflection portion is rotatably located in the receiving cavity; a laser emitter is arranged on the mounting portion; a retaining member passes through the moving member and is threadedly connected to the support member so that the outer surface of the deflection portion contacts the cavity wall of the receiving cavity; an actuating assembly includes two actuating members arranged on the outer periphery of the convex block, the actuating members pass through the moving member along the first direction and abut against the side of the support member close to the moving member, and the actuating members are threadedly connected to the moving member. In summary, in the laser emission device of this embodiment, the direction of the laser beam emitted by the laser emitter can be changed with relatively high precision, ensuring that the laser beam emitted by the laser emitter accurately irradiates the center position of the target area.

Description

Technical Field

[0001] The present application relates to the field of positioning optical technology, and particularly to a laser emitting device and an ophthalmic system. Background Art

[0002] In clinical medicine, ophthalmologists usually need to perform fundus examinations on patients' eyeballs for diagnosis and treatment. In the prior art, a fundus camera is used to take pictures of the bottom of the human eye, and doctors diagnose and treat patients based on the pictures taken by the fundus camera. When the fundus camera works, the laser of the fundus camera emits a laser beam towards the patient's eye for laser scanning imaging of the human eye.

[0003] In the related art, the laser of the fundus camera is installed on the positioning device in the fundus camera for guiding the light beam. The positioning device can change the irradiation direction of the laser beam emitted by the laser; however, the positioning accuracy of the positioning device is poor, and it is difficult to adjust the irradiation direction of the laser beam with high precision, resulting in the laser beam emitted by the laser being difficult to accurately irradiate the center of the human eye. Summary of the Invention

[0004] Based on this, in view of the problem that the laser beam emitted by the laser in the current fundus camera is difficult to accurately irradiate the center of the human eye, it is necessary to propose a laser emitting device and an ophthalmic system.

[0005] A laser emitting device includes:

[0006] A moving member, on one side along a first direction, is provided with a convex block, and the convex block includes a mounting portion and a deflection portion arranged along the first direction;

[0007] A support member is located on the side of the moving member where the convex block is provided and is spaced from the moving member. The support member is provided with a receiving cavity, and the deflection portion is rotatably located in the receiving cavity;

[0008] A laser emitter is arranged on the mounting portion;

[0009] At least one retaining member is arranged on the support member. The retaining member penetrates the moving member along the first direction and is threadedly connected to the support member, so that the outer surface of the deflection portion contacts the cavity wall of the receiving cavity;

[0010] An actuating assembly includes two actuating members arranged on the outer periphery of the convex block. The actuating members penetrate the moving member along the first direction and abut against the side of the support member close to the moving member. The actuating members are threadedly connected to the moving member.

[0011] In one embodiment, the actuator includes an actuating portion and an abutting portion. The actuating portion penetrates through the moving member along the first direction, and the actuating portion is in threaded connection with the moving member.

[0012] The abutting portion is connected to the actuating portion and is located between the actuating portion and the support member. The outer surface of the abutting portion abuts against one side of the support member close to the moving member.

[0013] In one embodiment, the support member includes a first region and a second region disposed around the outside of the first region.

[0014] The opening of the accommodating cavity faces one side of the first region of the support member close to the moving member, and the outer surface of the abutting portion abuts against one side of the second region of the support member close to the moving member.

[0015] In one embodiment, on one side of the second region of the support member close to the moving member, there is an accommodating groove corresponding to the actuator. In the accommodating groove, there are two rollers arranged at intervals. The abutting portion in the actuator corresponding to the accommodating groove is located between the two rollers, and the outer surface of the abutting portion abuts against the outer circumferences of the two rollers.

[0016] In one embodiment, the moving member is provided with a mounting hole corresponding to the holding member, and the mounting hole penetrates through the moving member along the first direction.

[0017] The holding member includes a bolt and a first elastic member. The bolt includes a nut and a screw rod. The nut is located on one side of the moving member away from the support member and is arranged at an interval from the moving member along the first direction. One end of the screw rod is connected to the nut, and the other end passes through the mounting hole along the first direction and is in threaded connection with the second region of the support member. The first elastic member is located between the nut and the moving member, and the first elastic member is sleeved on the outer circumference of the screw rod.

[0018] In one embodiment, the mounting hole includes a first mounting hole section and a second mounting hole section that are coaxially arranged and communicate with each other. The first mounting hole section is arranged on one side of the moving member away from the support member along the first direction. The second mounting hole section is arranged on one side of the moving member close to the support member along the first direction. The diameter of the first mounting hole section is larger than that of the second mounting hole section, and the outer diameter of the screw rod is smaller than the diameter of the second mounting hole section.

[0019] One end of the screw rod away from the nut passes through the first mounting hole section and the second mounting hole section in sequence along the first direction and is in threaded connection with the support member.

[0020] In one embodiment, a plurality of first assembly holes are provided on the second region of the support member, and the first assembly holes penetrate through the support member along the first direction;

[0021] The laser emitting device includes a mounting member and at least one mounting bolt. The mounting member is disposed on a side of the support member away from the moving member. A plurality of second assembly holes corresponding to the plurality of first assembly holes are provided on a side of the mounting member close to the support member. Each of the second assembly holes is coaxially disposed with the corresponding first assembly hole, and the diameter of the second assembly hole is smaller than the diameter of the first assembly hole; the mounting bolt passes through any one of the first assembly holes and is threadedly connected to the second assembly hole corresponding to the first assembly hole.

[0022] In one embodiment, the laser emitting device includes a plurality of the mounting bolts, and the number of the plurality of mounting bolts is smaller than the number of the plurality of first assembly holes;

[0023] Each of the mounting bolts passes through a different one of the first assembly holes and is threadedly connected to the second assembly hole corresponding to the first assembly hole, and the diameter of the second assembly hole is adapted to the diameter of the bolt head of the mounting bolt.

[0024] In one embodiment, the laser emitting device includes a base, and the mounting member is slidably connected to the base and is configured to slide relative to the base along the first direction.

[0025] In the laser emitting device of this embodiment, by adjusting the position of the threaded connection between the actuating member and the moving member, adjusting the dimension of the portion of the actuating member located between the moving member and the support member, and pushing the deflection portion in the moving member to rotate in the accommodating cavity, the laser emitter on the mounting portion is further facilitated to rotate under the drive of the deflection portion, changing the irradiation direction of the laser beam of the laser emitter, so that the laser beam irradiates to the central position of the target area. In the above process, the outer surface of the deflection portion always remains in contact with the cavity wall of the accommodating cavity, the actuating member will rotate around the contact point with the support member, and the rotation axis of the actuating member intersects with the extending direction of the actuating member, and the rotation axis of the deflection portion is parallel to the rotation axis of the actuating member.

[0026] The actuator is threadedly connected to the moving member. The dimension of the part of the actuator located between the moving member and the support member can be adjusted more precisely. The actuator can push the deflection part to rotate with high precision in the accommodation cavity. It should be added that two actuators are arranged on the outer periphery of the bump. By adjusting the positions of different actuators threadedly connected to the moving member and the dimensions of the parts of different actuators located between the moving member and the support member, the deflection part can be pushed to rotate around different axes in the accommodation cavity, and the laser beam emitted by the laser emitter can be adjusted from two different directions to ensure that the laser beam emitted by the laser emitter is accurately irradiated to the center position of the target area, so that the center of the target area is located at the center of the image, and further the image obtained by the image processing unit according to the laser beam reflected from the target area is more uniform, complete and clear.

[0027] The present application also provides an ophthalmic system, including the laser emission device described in any one of the foregoing, and

[0028] a laser transmission component for transmitting the laser emitted by the laser emission device to the target object; an image processing unit for obtaining an image of the target object according to the laser reflected by the target object.

[0029] In the ophthalmic system of this embodiment, the laser beam emitted by the laser emitter in the laser emission device is transmitted to the target object through the laser transmission component and is reflected by the target object. The image processing unit obtains an image of the target object according to the laser beam reflected by the target object.

[0030] In the laser emission device, by adjusting the position of the threaded connection between the actuator and the moving member and the dimension of the part of the actuator located between the moving member and the support member, the deflection part in the moving member is pushed to rotate in the accommodation cavity. Further, it is convenient for the laser emitter on the mounting part to rotate driven by the deflection part, changing the irradiation direction of the laser beam of the laser emitter, so that after the laser beam is transmitted through the laser transmission component, it is irradiated to the center position of the target area on the target object. In the above process, the outer surface of the deflection part always remains in contact with the cavity wall of the accommodation cavity. The actuator will rotate around the contact point with the support member, and the rotation axis of the actuator is parallel to the rotation axis of the deflection part.

[0031] The actuator is threadedly connected to the moving part. The size of the part of the actuator located between the moving part and the support part can be adjusted more precisely. The actuator can push the deflection part to rotate with high precision in the accommodation cavity. It should be added that there are two actuators arranged on the outer periphery of the bump. By adjusting the positions of different actuators threadedly connected to the moving part and adjusting the sizes of the parts of different actuators located between the moving part and the support part, the deflection part can be pushed to rotate around different axes in the accommodation cavity, and the laser beam emitted by the laser emitter can be adjusted from two different directions, ensuring that after the laser beam emitted by the laser emitter is transmitted by the laser transmission component, it is accurately irradiated to the center position of the target area on the target object, so that the center of the target area is located at the center of the image, and further enabling the image processing unit to obtain a more uniform, complete and clear image based on the laser beam reflected from the target area. Brief Description of the Drawings

[0032] In order to more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of the present application, the following will briefly introduce the drawings required for use in the description of the embodiments or exemplary embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0033] Figure 1 Structural schematic diagram of a laser emission device in an embodiment of the present application.

[0034] Figure 2 For Figure 1 Structural schematic diagram of the laser emission device shown.

[0035] Figure 3 For Figure 1 Exploded view of the laser emission device shown.

[0036] Figure 4 For Figure 3 Partial structural schematic diagram of the moving part in the exploded view shown.

[0037] Figure 5 Structural schematic diagram of an ophthalmic system in an embodiment of the present application.

[0038] Figure 6 Image obtained after the laser beam irradiated to the human eye model before calibration of the ophthalmic system in the present application is reflected.

[0039] Figure 7 Image obtained after the laser beam irradiated to the human eye model after calibration of the ophthalmic system in the present application is reflected.

[0040] Reference numerals:

[0041] Ophthalmic system 1;

[0042] Laser emitting device 10;

[0043] Moving member 110, bump 111, mounting portion 111-1, deflecting portion 111-2, mounting groove 111-3, locking block 111-4, first through hole 111-5, mounting hole 112, laser cover 113, light-emitting hole 113-1;

[0044] Support member 120, receiving cavity 121, second through hole 122, receiving groove 123, roller 124, first assembly hole 125, first region 126, second region 127;

[0045] Holding member 130, bolt 131, nut 131-1, screw 131-2;

[0046] Actuating assembly 140, actuating member 141, actuating portion 141-1, abutting portion 141-2;

[0047] Mounting member 150, second assembly hole 151, guiding portion 152, adjusting rod 153, first bolt 154;

[0048] Mounting bolt 160;

[0049] Base 170, guiding groove 171, groove 172, limiting groove 173, limiting member 174, second bolt 175, guiding rod 176;

[0050] Second elastic member 180;

[0051] Laser transmission assembly 20, lens 210, first lens 211, second lens 212, third lens 213, fourth lens 214, mirror 220, first mirror 221, second mirror 222, third mirror 223, scanning galvanometer 230, human eye model 240. Detailed implementation manners

[0052] To make the above objects, features, and advantages of the present application more apparent and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0053] Please refer to Figures 1 to 4 , Figure 1The schematic structural diagram of a laser emission device in an embodiment of the present application is shown. A laser emission device 10 provided in an embodiment of the present application for an ophthalmic imaging device includes: a moving member 110, a support member 120, a laser emitter (not marked in the figure), at least one holding member 130, and an actuating assembly 140. A bump 111 is provided on one side of the moving member 110 along the first direction. The bump 111 includes a mounting portion 111-1 and a deflection portion 111-2 arranged along the first direction. The support member 120 is located on the side of the moving member 110 where the bump 111 is provided and is spaced apart from the moving member 110. A receiving cavity 121 is provided on the support member 120. The deflection portion 111-2 is rotatably located in the receiving cavity 121, and the laser emitter is arranged on the mounting portion 111-1; at least one holding member 130, the holding member 130 penetrates the moving member 110 along the first direction and is threadedly connected to the support member 120, so that the outer surface of the deflection portion 111-2 contacts the cavity wall of the receiving cavity 121; the actuating assembly 140 includes two actuating members 141 provided on the outer periphery of the bump 111. The actuating member 141 penetrates the moving member 110 along the first direction and abuts against the side of the support member 120 close to the moving member 110. The actuating member 141 is threadedly connected to the moving member 110.

[0054] In the laser emission device 10 in this embodiment, by adjusting the position of the threaded connection between the actuating member 141 and the moving member 110, adjusting the dimension of the portion of the actuating member 141 located between the moving member 110 and the support member 120, the deflection portion 111-2 in the moving member 110 is pushed to rotate in the receiving cavity 121. Furthermore, it is convenient for the laser emitter on the mounting portion 111-1 to rotate driven by the deflection portion 111-2, changing the irradiation direction of the laser beam of the laser emitter, so that the laser beam irradiates the central position of the target area. In the above process, the outer surface of the deflection portion 111-2 always contacts the cavity wall of the receiving cavity 121. The actuating member 141 will rotate around the contact point with the support member 120. The rotation axis of the actuating member 141 intersects with the extending direction of the actuating member 141. The rotation axis of the deflection portion 111-2 is parallel to the rotation axis of the actuating member 141.

[0055] The actuating member 141 is threadedly connected to the moving member 110. The dimension of the portion of the actuating member 141 located between the moving member 110 and the support member 120 can be adjusted more precisely. The actuating member 141 can push the deflection portion 111-2 to rotate in the receiving cavity 121 with high precision.

[0056] It should be noted that two actuators 141 are provided on the outer periphery of the bump 111. By adjusting the positions of different actuators 141 threadedly connected to the moving member 110 and adjusting the dimensions of the portions of different actuators 141 located between the moving member 110 and the support member 120, the deflection portion 111-2 can be pushed to rotate around different axes within the receiving cavity 121, adjusting the laser beam emitted by the laser emitter from two different directions to ensure that the laser beam emitted by the laser emitter is accurately irradiated towards the central position of the target area, so that the center of the target area is located at the center of the image, and further enabling the image processing unit to obtain a more uniform, complete, and clear image based on the laser beam reflected from the target area.

[0057] Please refer to Figure 3 and Figure 4 , in some embodiments, the actuator 141 includes an actuating portion 141-1 and an abutting portion 141-2. The actuating portion 141-1 penetrates through the moving member 110 in a first direction, and the actuating portion 141-1 is threadedly connected to the moving member 110; the abutting portion 141-2 is connected to the actuating portion 141-1 and is located between the actuating portion 141-1 and the support member 120, and the outer surface of the abutting portion 141-2 abuts against the side of the support member 120 close to the moving member 110.

[0058] In some embodiments, the outer surface of the abutting portion 141-2 is a curved surface. Optionally, the curved surface includes a first spherical surface having a partial spherical shape, and the first spherical surface abuts against the side of the support member 120 close to the moving member 110.

[0059] In other embodiments, the deflection portion 111-2 includes a second spherical surface having a partial spherical shape, and the receiving cavity 121 is a chamber having a partial hollow spherical shape to facilitate at least partially receiving the second spherical surface, and the deflection portion 111-2 is configured to rotate around the center of the receiving cavity 121 within the receiving cavity 121.

[0060] In other embodiments, two actuators 141 are arranged around the outer periphery of the bump 111, and the included angle between the two actuators 141 is 90 degrees.

[0061] Please refer to Figure 3 and Figure 4 , in some embodiments, the support member 120 includes a first region 126 and a second region 127 disposed around the outside of the first region 126; the opening of the receiving cavity 121 faces the side of the first region 126 of the support member 120 close to the moving member 110, and the outer surface of the abutting portion 141-2 abuts against the side of the second region 127 of the support member 120.

[0062] In this embodiment, by designing the partial spherical shape of the deflection part 111-2 of the laser emitting device 10, the need to adjust the laser emitting device 10 is satisfied and the volume of the laser emitting device 10 can be reduced.

[0063] In some embodiments, a second through hole 122 is provided on the side of the first region 126 of the support member 120 away from the moving member 110. The second through hole 122 extends along the first direction and communicates with the accommodation cavity 121. The mounting portion 111-1 is located in the second through hole 122, and there is an annular gap between the outer periphery of the mounting portion 111-1 and the inner wall of the second through hole 122. In the direction of the moving member 110 pointing to the support member 120, the mounting portion 111-1 at least partially extends out of the second through hole 122 to be connected to the laser emitter.

[0064] In some embodiments, a mounting groove 111-3 is provided on the side of the mounting portion 111-1 away from the deflection portion 111-2 along the first direction, and the laser emitter is located in the mounting groove 111-3.

[0065] In some embodiments, a clamping block 111-4 is provided in the mounting groove 111-3, and a clamping groove (not shown) is provided on the laser emitter. The clamping groove on the laser emitter is clamped with the clamping block 111-4 in the mounting groove 111-3.

[0066] In some embodiments, a first through hole 111-5 is provided on the side of the moving member 110 away from the support member 120 along the first direction. The first through hole 111-5 extends along the first direction, sequentially passes through the deflection portion 111-2 and the mounting portion 111-1, and communicates with the mounting groove 111-3. The first through hole 111-5 is for the control line of the laser emitter to pass through.

[0067] In some embodiments, the moving member 110 includes a laser cover 113. The laser cover 113 covers the light outlet of the laser emitter and is threadedly connected to the mounting portion 111-1. The laser cover 113 is provided with a light outlet hole 113-1 extending along the first direction, and the light outlet hole 113-1 is for the laser of the laser emitter to emit.

[0068] Please refer to Figure 3 And Figure 4 , in some embodiments, a receiving groove 123 corresponding to the actuating member 141 is provided on the side of the second region 127 of the support member 120 close to the moving member 110. Two rollers 124 are arranged at intervals in the receiving groove 123. The abutting portion 141-2 of the actuating member 141 corresponding to the receiving groove 123 is located between the two rollers 124, and the outer surface of the abutting portion 141-2 abuts against the outer peripheries of the two rollers 124.

[0069] In this embodiment, by arranging the abutting portion 141-2 in the actuating member 141 between the two rollers 124, and the outer surface of the abutting portion 141-2 abuts against the outer circumferences of the two rollers 124, it is convenient to limit the abutting portion 141-2 by means of the two rollers 124; when adjusting the size of the portion of the actuating portion 141-1 between the moving member 110 and the supporting member 120, it is prevented that the deflecting portion 111-2 rotates in the receiving cavity 121 around an axis parallel to the first direction.

[0070] In some embodiments, the receiving groove 123 is located on one side of the receiving cavity 121 along the third direction. Two rollers 124 arranged at intervals along the second direction are provided in the receiving groove 123, and each roller 124 extends along the third direction. The first direction, the second direction, and the third direction are arranged intersecting each other in pairs.

[0071] Please refer to Figure 3 and Figure 4 , in some embodiments, the moving member 110 is provided with a mounting hole 112 corresponding to the holding member 130, and the mounting hole 112 penetrates through the moving member 110 along the first direction; the holding member 130 includes a bolt 131 and a first elastic member (not marked in the figure). The bolt 131 includes a nut 131-1 and a screw rod 131-2. The nut 131-1 is located on the side of the moving member 110 away from the supporting member 120 and is arranged at an interval from the moving member 110 along the first direction. One end of the screw rod 131-2 is connected to the nut 131-1, and the other end passes through the mounting hole 112 along the first direction and is threadedly connected to the supporting member 120 in the second region 127. The first elastic member is located between the nut 131-1 and the moving member 110, and the first elastic member is sleeved on the outer circumference of the screw rod 131-2.

[0072] In this embodiment, when the portion of the actuating member 141 between the moving member 110 and the supporting member 120 pushes the deflecting portion 111-2 in the moving member 110 to rotate in the receiving cavity 121, the distance between the moving member 110 and the nut 131-1 changes, and the first elastic member undergoes elastic deformation. The first elastic member that undergoes elastic deformation exerts an elastic force on the moving member 110. Under the action of the elastic force, the outer surface of the deflecting portion 111-2 always remains in contact with the cavity wall of the receiving cavity 121.

[0073] In some embodiments, the laser emitting device 10 includes a plurality of holding members 130, and the plurality of holding members 130 are arranged around the convex block 111 around an axis parallel to the first direction.

[0074] Please refer to Figure 3 and Figure 4, in some embodiments, the mounting hole 112 includes a first mounting hole section (not labeled in the figure) and a second mounting hole section (not labeled in the figure) that are coaxially arranged and communicate with each other; the first mounting hole section is arranged on the side of the moving member 110 away from the support member 120 along a first direction; the second mounting hole section is arranged on the side of the moving member 110 close to the support member 120 along the first direction, the diameter of the first mounting hole section is larger than the diameter of the second mounting hole section, and the outer diameter of the screw 131-2 is smaller than the diameter of the second mounting hole section; one end of the screw 131-2 away from the nut 131-1 sequentially passes through the first mounting hole section and the second mounting hole section along the first direction and is threadedly connected to the support member 120.

[0075] In this embodiment, since the outer diameter of the screw 131-2 is smaller than the diameter of the second mounting hole section, during the process of the actuator 141 pushing the deflection part 111-2 to rotate in the accommodation cavity 121, the relative position between the central axis of the screw 131-2 and the central axis of the second mounting hole section will change, and the moving member 110 will move relative to the screw 131-2, so as not to limit the movement of the moving member 110.

[0076] Please refer to Figure 2 , in some embodiments, a plurality of first assembly holes 125 are provided on the second area 127 of the support member 120, and the first assembly holes 125 penetrate the support member 120 along a first direction; the laser emitting device 10 includes a mounting member 150 and at least one mounting bolt 160, the mounting member 150 is arranged on the side of the support member 120 away from the moving member 110, and a plurality of second assembly holes 151 corresponding to the plurality of first assembly holes 125 are provided on the side of the mounting member 150 close to the support member 120. Each second assembly hole 151 is coaxially arranged with the corresponding first assembly hole 125, and the aperture of the second assembly hole 151 is smaller than the aperture of the first assembly hole 125; the mounting bolt 160 passes through any one of the first assembly holes 125 and is threadedly connected to the second assembly hole 151 corresponding to the first assembly hole 125.

[0077] In this embodiment, when the laser beam emitted by the laser emitter needs to irradiate the target area, the staff will push the support member 120 to move relative to the mounting member 150 along the second direction or the third direction to drive the moving member 110 to move synchronously, so that the laser emitter on the mounting part 111-1 in the moving member 110 moves relative to the target area along the second direction or the third direction until the laser beam emitted by the laser emitter irradiates the target area, and then the staff stops pushing the support member 120.

[0078] In the above process, the first assembly hole 125 will move along the second direction or the third direction relative to the second assembly hole 151, and the axis of the first assembly hole 125 will no longer coincide with the axis of the first assembly hole 125; since the aperture of the first assembly hole 125 is larger than the aperture of the second assembly hole 151, when the staff pushes the support member 120 to make a small movement, the projection of the second assembly hole 151 on the support member 120 will always be located in the first assembly hole 125, and the staff can normally use the mounting bolt 160 to pass through the first assembly hole 125 and threadedly connect it to the second assembly hole 151 corresponding to the first assembly hole 125, so as to fix and lock the relative position relationship between the support member 120 and the mounting member 150.

[0079] To summarize, in this embodiment, the relative position of the support member 120 and the mounting member 150 can be adjusted and changed in the second direction and the third direction, and then the position of the laser emitter relative to the mounting member 150 can be adjusted, so that the laser beam emitted by the laser emitter irradiates the target area, and the image processing unit obtains an image based on the laser beam reflected at the target area, and the staff can observe the image on the display device.

[0080] See also Figure 2 In some embodiments, the laser emitting device 10 includes a plurality of mounting bolts 160, and the number of the plurality of mounting bolts 160 is less than the number of the plurality of first assembly holes 125; each mounting bolt 160 is passed through a different first assembly hole 125, and is threadedly connected to a second assembly hole 151 corresponding to the first assembly hole 125, and the aperture of the second assembly hole 151 matches the diameter of the bolt head (not shown) of the mounting bolt 160.

[0081] In this embodiment, when the relative position relationship between the support member 120 and the mounting member 150 is to be adjusted, the staff will loosen all the mounting bolts 160 and use a lever (not shown) to lever any first assembly hole 125 that is not passed through by the mounting bolt 160, so that each first assembly hole 125 passed through by the mounting bolt 160 moves along the second direction or the third direction relative to the corresponding second assembly hole 151, thereby pushing the support member 120 to move along the second direction or the third direction relative to the mounting member 150, until the laser beam emitted by the laser emitter on the mounting portion 111-1 in the moving member 110 driven by the support member 120 irradiates the target area, and the staff stops levering and tightens each loosened mounting bolt 160.

[0082] See also Figure 2 In some embodiments, the laser emitting device 10 includes a base 170, and the mounting member 150 is slidably connected to the base 170 and is configured to slide relative to the base 170 along a first direction.

[0083] In this embodiment, by pushing the mounting member 150 to move relative to the base 170 in the first direction, the support member 120 can be driven to move synchronously, so that the laser emitter on the mounting portion 111-1 of the moving member 110 moves relative to the base 170 in the first direction, changing the relative positional relationship in the first direction between the focus of the laser beam emitted by the laser emitter and the target area, ensuring that the focus of the laser beam emitted by the laser emitter is located within the target area, and thereby improving the clarity of the image obtained by the image processing unit based on the laser beam reflected from the target area.

[0084] In some embodiments, the mounting member 150 and the base 170 are arranged at intervals in the first direction. The mounting member 150 is provided with an adjusting rod 153. The adjusting rod 153 extends in the first direction. The adjusting rod 153 passes through the mounting member 150, and one end of the adjusting rod 153 contacts the side of the base 170 close to the mounting member 150.

[0085] In some embodiments, a guiding groove 171 is provided on one side of the base 170 along the third direction. The guiding groove 171 extends in the first direction. The mounting member 150 is provided with a guiding portion 152. The guiding portion 152 is located in the guiding groove 171 and is configured to slide along the extending direction of the guiding groove 171.

[0086] In some embodiments, a limiting groove 173 is provided on one side of the base 170 along the third direction. The limiting groove 173 is located on the side of the guiding groove 171 away from the mounting member 150 in the first direction. The limiting groove 173 extends in the second direction. The limiting groove 173 communicates with the guiding groove 171. The dimension of the limiting groove 173 in the second direction is larger than the dimension of the guiding groove 171 in the second direction. A limiting member 174 is provided in the limiting groove 173. The outer periphery of the limiting member 174 contacts the side wall of the limiting groove 173. The laser emitting device 10 includes a second elastic member 180. The second elastic member 180 extends in the first direction. One end of the second elastic member 180 is connected to the guiding portion 152, and the other end is connected to the limiting member 174.

[0087] In some embodiments, a first bolt 154 is provided on the side of the guiding portion 152 away from the base 170 along the third direction. A second bolt 175 is provided on the side of the limiting member 174 away from the base 170 along the third direction. One end of the second elastic member 180 is connected to the first bolt 154, and the other end is connected to the second bolt 175.

[0088] In some embodiments, grooves 172 are provided on the opposite side walls of the guiding groove 171 along the second direction. The grooves 172 extend in the first direction. Guide rods 176 are provided in the grooves 172. The guide rods 176 extend in the first direction. The outer periphery of the guide rods 176 contacts the side walls of the grooves 172.

[0089] In some embodiments, chutes (not labeled in the figure) are provided on opposite sides of the guiding portion 152 along the second direction. The chutes extend along the first direction, and the two chutes are correspondingly arranged with the two guiding rods 176. Each guiding rod 176 is located in the region outside the groove 172 and contacts the wall of the corresponding chute.

[0090] Please refer to Figure 5 , Figure 5 , which shows a schematic structural diagram of an ophthalmic system in an embodiment of the present application. An ophthalmic system 1 provided in an embodiment of the present application includes the aforementioned laser emitting device 10, as well as a laser transmission component 20 and an image processing unit. The laser transmission component 20 is used to transmit the laser emitted by the laser emitting device 10 to a target object; the image processing unit is used to obtain an image of the target object based on the laser reflected by the target object.

[0091] In the ophthalmic system 1 of this embodiment, the laser beam emitted by the laser emitter in the laser emitting device 10 is transmitted to the target object (human eye model 240) through the laser transmission component 20 and is reflected by the target object. The image processing unit obtains an image of the target object based on the laser beam reflected by the target object.

[0092] The laser emitting device 10 adjusts the size of the portion of the actuating member 141 located between the moving member 110 and the supporting member 120 by adjusting the position of the threaded connection between the actuating member 141 and the moving member 110, and pushes the deflecting portion 111-2 in the moving member 110 to rotate in the receiving cavity 121. Furthermore, it is convenient for the laser emitter on the mounting portion 111-1 to rotate driven by the deflecting portion 111-2, changing the irradiation direction of the laser beam of the laser emitter, so that after the laser beam is transmitted through the laser transmission component 20, it irradiates the center position of the target area on the target object. During the above process, the outer surface of the deflecting portion 111-2 always remains in contact with the wall of the receiving cavity 121, the actuating member 141 will rotate around the contact point with the supporting member 120, and the rotation axis of the actuating member 141 is parallel to the rotation axis of the deflecting portion 111-2.

[0093] The actuating member 141 is threadedly connected to the moving member 110. The size of the portion of the actuating member 141 located between the moving member 110 and the supporting member 120 can be adjusted more precisely, and the actuating member 141 can push the deflecting portion 111-2 to rotate with high precision in the receiving cavity 121.

[0094] It should be further noted that there are two actuators 141 provided on the outer periphery of the bump 111. By adjusting the positions of different actuators 141 threadedly connected to the moving member 110 and adjusting the dimensions of the portions of different actuators 141 located between the moving member 110 and the support member 120, the deflection portion 111-2 can be pushed to rotate around different axes in the accommodation cavity 121, and the laser beam emitted by the laser emitter can be adjusted from two different directions, ensuring that after the laser beam emitted by the laser emitter is transmitted by the laser transmission assembly 20, it is accurately irradiated to the center position of the target area on the target object, so that the center of the target area is located at the center of the image, and further enabling the image processing unit to obtain a more uniform, complete, and clear image based on the laser beam reflected from the target area.

[0095] It should be further noted that before adjusting the positions of the actuators 141 threadedly connected to the moving member 110, the following operations will be performed: (1) adjusting the relative positional relationship between the axis of the second assembly hole 151 and the axis of the first assembly hole 125 to change the relative position between the support member 120 and the mounting member 150; (2) pushing the mounting member 150 to move relative to the base 170 in the first direction to change the relative positional relationship between the focus of the laser beam emitted by the laser emitter and the target area in the first direction. So that the focus of the laser beam emitted by the laser emitter falls within the target area, and the image obtained by the image processing unit based on the laser beam reflected from the target area can be clearly observed on the display unit.

[0096] It should be further emphasized that as Figure 6 shown is the image obtained after the laser beam irradiated to the human eye model 240 before the calibration of the ophthalmic system 1 is reflected; Figure 7 shown is the image obtained after the laser beam irradiated to the human eye model 240 after the calibration of the ophthalmic system 1 is reflected; Compared with the image obtained after the laser beam irradiated to the human eye model 240 before the calibration of the ophthalmic system 1 is reflected, the image obtained after the laser beam irradiated to the human eye model 240 after the calibration of the ophthalmic system 1 is reflected can be more clearly observed, and the center of the target area is located at the center of the image, ensuring the integrity of the image. Therefore, by observing the image, the above adjustments can be made to the laser emission device 10 in the ophthalmic system 1 of the present invention until a target image that meets the requirements is obtained, and the above adjustment process is completed.

[0097] In some embodiments, the laser transmission assembly 20 includes a lens 210, a mirror 220, and a scanning galvanometer 230. The laser beam emitted by the laser emitter in the laser emission device 10 passes through the lens 210 and is reflected by the mirror 220 to the scanning galvanometer 230, and is irradiated to the human eye model 240 under the emission of the scanning galvanometer 230.

[0098] In some embodiments, the lens 210 includes a first lens 211, a second lens 212, a third lens 213, and a fourth lens 214, and the mirror 220 includes a first mirror 221, a second mirror 222, and a third mirror 223; the laser beam emitted by the laser emitter in the laser emission device 10 passes through the first lens 211 and shines on the first mirror 221. After being reflected by the first mirror 221, it passes through the second lens 212 and shines on the second mirror 222. Under the reflection of the second mirror 222, it shines on the scanning galvanometer 230, and after being reflected by the scanning galvanometer 230, it passes through the third lens 213 and shines on the third mirror 223. Under the reflection of the third mirror 223, it passes through the fourth lens 214 and shines on the human eye model 240.

[0099] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0100] The above-described embodiments merely represent several implementation manners of the present application, and the description thereof is relatively specific and detailed. However, it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A laser emitting device for ophthalmic imaging equipment, characterized in that: include: A moving member, wherein a protrusion is provided on one side along a first direction, wherein the protrusion comprises a mounting portion and a deflection portion arranged along the first direction; a support member, located at a side of the moving member where the protrusion is provided, and spaced from the moving member, the support member being provided with a receiving cavity, the deflection unit being rotatably located in the receiving cavity, the deflection unit comprising a second spherical surface having a partial spherical shape, the receiving cavity being a chamber having a partial hollow spherical shape, and the deflection unit being configured to rotate around the center of the receiving cavity in the receiving cavity; A laser transmitter is arranged on the mounting portion; at least one retaining member, the retaining member being inserted through the moving member along the first direction and being threadedly connected to the supporting member so that the outer surface of the deflecting portion contacts the cavity wall of the accommodating cavity; The actuating assembly comprises two actuating members arranged on the periphery of the protrusion, the actuating members penetrate the moving member along the first direction and abut against a side of the supporting member close to the moving member, and the actuating members are threadedly connected to the moving member.

2. The laser emitting device according to claim 1, characterized in that: The actuating member comprises an actuating portion and an abutting portion, the actuating portion is disposed through the moving member along the first direction, and the actuating portion is threadedly connected to the moving member; The abutting portion is connected to the actuating portion and is located between the actuating portion and the supporting member. The outer surface of the abutting portion abuts against a side of the supporting member close to the moving member.

3. The laser emitting device according to claim 2, characterized in that: The support member includes a first area and a second area surrounding and arranged outside the first area; The opening of the accommodating cavity faces the side of the first region of the supporting member close to the moving member, and the outer surface of the abutting portion abuts against the side of the second region of the supporting member close to the moving member.

4. The laser emitting device according to claim 3, characterized in that: A receiving groove corresponding to the actuator is provided on one side of the second area of ​​the support member close to the movable member, and two rollers arranged at intervals are provided in the receiving groove; the abutment portion in the actuator corresponding to the receiving groove is located between the two rollers, and the outer surface of the abutment portion abuts against the outer periphery of the two rollers.

5. The laser emitting device according to claim 3, characterized in that: The moving member is provided with a mounting hole corresponding to the holding member, and the mounting hole penetrates the moving member along the first direction; The retaining member includes a bolt and a first elastic member, the bolt includes a nut and a screw rod, the nut is located on a side of the movable member away from the supporting member and is spaced apart from the movable member along the first direction, one end of the screw rod is connected to the nut, and the other end passes through the mounting hole along the first direction and is threadedly connected to the second area of ​​the supporting member, the first elastic member is located between the nut and the movable member, and the first elastic member is sleeved on the outer periphery of the screw rod.

6. The laser emitting device according to claim 5, characterized in that: The mounting hole comprises a first mounting hole section and a second mounting hole section which are coaxially arranged and interconnected; the first mounting hole section is arranged on a side of the moving member away from the supporting member along the first direction; the second mounting hole section is arranged on a side of the moving member close to the supporting member along the first direction, the diameter of the first mounting hole section is larger than the diameter of the second mounting hole section, and the outer diameter of the screw is smaller than the diameter of the second mounting hole section; One end of the screw rod away from the nut passes through the first mounting hole section and the second mounting hole section in sequence along the first direction, and is threadedly connected to the support member.

7. The laser emitting device according to claim 3, characterized in that: A plurality of first assembly holes are provided on the second area of ​​the support member, and the first assembly holes penetrate the support member along the first direction; The laser emitting device also includes a mounting member and at least one mounting bolt, wherein the mounting member is arranged on a side of the support member away from the movable member, and a side of the mounting member close to the support member is provided with a plurality of second assembly holes corresponding to the plurality of first assembly holes one by one, each of the second assembly holes is coaxially arranged with the corresponding first assembly hole, and the aperture of the second assembly hole is smaller than the aperture of the first assembly hole; the mounting bolt is passed through any of the first assembly holes and is threadedly connected to the second assembly hole corresponding to the first assembly hole.

8. The laser emitting device according to claim 7, characterized in that: The laser emitting device comprises a plurality of the mounting bolts, and the number of the plurality of mounting bolts is less than the number of the plurality of first assembly holes; Each of the mounting bolts is passed through a different first assembly hole and is threadedly connected to the second assembly hole corresponding to the first assembly hole. The diameter of the second assembly hole matches the diameter of the bolt head of the mounting bolt.

9. The laser emitting device according to claim 7, characterized in that: The laser emitting device comprises a base, and the mounting member is slidably connected to the base and is configured to slide relative to the base along the first direction.

10. An ophthalmic system, characterized in that: A laser emitting device comprising any one of claims 1 to 9, and A laser transmission component is used to transmit the laser emitted by the laser emitting device to the target object; an image processing unit is used to obtain an image of the target object based on the laser reflected by the target object.

Images