A fac lens coupling test apparatus

Abstract

The application discloses a FAC lens coupling test device, and relates to the technical field of fiber lasers, and solves the technical problem that manual coupling test of a fast-axis collimating mirror is poor in effect, slow in speed and difficult to adapt to test requirements. The device comprises a feeding and discharging system, a bearing and coupling system, a light-emitting switching system and a light spot imaging system. The feeding and discharging system feeds FAC lenses into the bearing and coupling system one by one, and takes out the FAC lenses after test one by one. The bearing and coupling system can bear the FAC lenses fed by the feeding and discharging system and feed the FAC lenses into the light-emitting switching system. The light-emitting switching system emits light to the FAC lenses to generate light spots. The light spot imaging system collects the light spot images generated by the FAC lenses. The application has better consistency than manual coupling test of a fast-axis collimating mirror, ensures accuracy, improves test speed through automatic test, and can adapt to test requirements in different scenes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fiber lasers, and particularly relates to a FAC lens coupling test device. BACKGROUND

[0002] In the high-precision assembly application of high-power fiber lasers, the appearance and spot of FAC (Fast Axis Collimator Lense) lenses are required to be high. At present, the inspection of the fast-axis collimator lens mainly focuses on the measurement of the cross-sectional size, and the spot inspection is carried out by using a manual coupling platform according to a certain proportion of sampling inspection, that is, coupling test.

[0003] In the coupling test of the fast-axis collimator lens, the energy percentage quantification of the sidelobes has a high requirement, such as Figure 1 As shown in a better spot (few sidelobes, high peak intensity, and the maximum value can reach 100), Figure 2 As shown in a poor spot (many sidelobes, low peak intensity, and the maximum value is generally only 50 or even lower). The process speed of manual spot inspection test is slow, and is related to the ability of manual coupling to the best spot. The test effects of different people are difficult to be consistent, and the repeatability of the best spot is not good. At the same time, due to the slow speed of manual coupling, it is difficult to achieve full inspection, and it is difficult to respond to the inspection requirements of the final customer, and it is also difficult to quantify the test results.

[0004] In the process of realizing the present application, the inventors found that at least the following problems exist in the prior art:

[0005] The manual coupling test effect of the fast-axis collimator lens is poor, the speed is slow, and it is difficult to adapt to the test requirements. SUMMARY

[0006] The present application aims to provide a FAC lens coupling test device to solve the technical problems in the prior art that the manual coupling test effect of the fast-axis collimator lens is poor, the speed is slow, and it is difficult to adapt to the test requirements. The preferred technical solutions in the many technical solutions provided by the present application can produce many technical effects, which are described in detail below.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0008] The application provides a FAC lens coupling test device, which comprises a feeding and discharging system, a bearing and coupling system, a light-emitting switching system and a light spot imaging system; the feeding and discharging system feeds the FAC lenses into the bearing and coupling system one by one and takes the tested FAC lenses one by one; the bearing and coupling system can bear the FAC lenses fed by the feeding and discharging system and feed the FAC lenses into the light-emitting switching system; the light-emitting switching system aligns the FAC lenses to emit light to generate light spots, and the light spot imaging system collects the light spot images generated by the FAC lenses.

[0009] Preferably, the bearing and coupling system comprises a turntable and jig module and a coupling module; the feeding and discharging system feeds the FAC lenses into the turntable and jig module and takes the tested FAC lenses from the turntable and jig module; the coupling module takes the FAC lenses from the turntable and jig module one by one and aligns the corresponding positions of the light-emitting switching system.

[0010] Preferably, the turntable and jig module comprises a high-precision turntable, a plurality of placement jigs, a first jig positioning camera and a second jig positioning camera; the placement jigs are uniformly distributed above the high-precision turntable and are fixedly connected with the high-precision turntable; each placement jig bears one FAC lens, and the first jig positioning camera and the second jig positioning camera monitor the positions between the FAC lenses and the placement jigs from the side direction and the up-down direction, respectively.

[0011] Preferably, the coupling module comprises a coupling motion platform, a high-precision electric control clamp and a coupling positioning camera; the coupling motion platform is a six-degree-of-freedom motion platform, which is used for controlling the motion of the high-precision electric control clamp and can adjust the positions of different light-emitting elements; the high-precision electric control clamp clamps or releases the FAC lenses on the turntable and jig module and can feed the FAC lenses into the corresponding positions of the light-emitting elements; the coupling positioning camera monitors the positions of the FAC lenses clamped by the high-precision electric control clamp in real time.

[0012] Preferably, the light spot imaging system comprises a SAC lens, a beam splitter, a reflector, a near-field light spot imaging camera and a far-field light spot imaging camera; the SAC lens, the beam splitter and the reflector are sequentially arranged, and the near-field light spot imaging camera and the far-field light spot imaging camera are respectively arranged directly above the beam splitter and the reflector.

[0013] Preferably, the light-emitting switching system comprises a plurality of different light-emitting elements, and the different light-emitting elements can test the light spots of the FAC lenses under different light-emitting qualities.

[0014] Preferably, the feeding and discharging system comprises a motion module, a feeding and discharging suction nozzle, a placing tray, and an NG tray; the placing tray can accommodate a plurality of FAC lenses; the NG tray is used to accommodate a plurality of FAC lenses that are unqualified after detection; the motion module drives the feeding and discharging suction nozzle to move; the feeding and discharging suction nozzle sucks the FAC lenses from the placing tray one by one and sends them to the high-precision turntable, and then puts the FAC lenses after testing back to the placing tray or the NG tray.

[0015] Preferably, the motion module comprises an X-axis motion component, a Y-axis motion component, and a Z-axis motion component; the X-axis motion component, the Y-axis motion component, and the Z-axis motion component can respectively drive the feeding and discharging suction nozzle to move along the X-axis direction, the Y-axis direction, and the Z-axis direction.

[0016] Preferably, the feeding and discharging system further comprises a first feeding and discharging positioning camera and a second feeding and discharging positioning camera; the first feeding and discharging positioning camera and the second feeding and discharging positioning camera are arranged at intervals; the first feeding and discharging positioning camera is located above the placing tray and monitors the position of each FAC lens; the second feeding and discharging positioning camera is located below the feeding and discharging suction nozzle and monitors the position and angle of each FAC lens.

[0017] Preferably, the feeding and discharging system further comprises a damping system, which comprises a base and a support seat; the base is connected with the feeding and discharging system, the turntable, the jig module, the light-emitting switching system, the light spot imaging system, and the coupling module; the support seat is connected with the base; the base is made of marble, and the support seat is a gas-float damping device.

[0018] The above technical solutions of the present application have the following advantages or beneficial effects:

[0019] The present application realizes the placement and position calibration of the FAC lens through the feeding and discharging system, the bearing and coupling system, the light-emitting switching system can generate various test light, which is suitable for different use scenarios of the FAC lens, and the analysis of the FAC lens light spot image obtained by the light spot imaging system can obtain the coupling test result. The present application has better consistency than manual fast-axis collimation mirror coupling test, which ensures the accuracy of the test effect, and at the same time, the automatic test improves the test speed, facilitates the batch test of the FAC lens, and can also meet the test requirements of different scenarios. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. In the drawings:

[0021] Figure 1 is a schematic diagram of a better FAC spot;

[0022] Figure 2 is a schematic diagram of a worse FAC spot;

[0023] Figure 3 is a perspective view of the FAC lens coupling test equipment in an embodiment of the present application;

[0024] Figure 4 is a perspective view of the feeding and discharging system in an embodiment of the present application;

[0025] Figure 5 is a partial structure enlarged view at A in Figure 4

[0026] Figure 6 is a perspective view of the turntable and jig module in an embodiment of the present application;

[0027] Figure 7 is a partial structure enlarged view at B in Figure 6

[0028] Figure 8 is a perspective view of the coupling module in an embodiment of the present application;

[0029] Figure 9 is a perspective view of the spot imaging system in an embodiment of the present application;

[0030] Figure 10 is a perspective view of the damping system in an embodiment of the present application.

[0031] ​​In the figure: 1, feeding and discharging system; 11, movement module; 111, X-axis movement part; 112, Y-axis movement part; 113, Z-axis movement part; 114, camera movement part; 115, tray platform movement part; 12, feeding and discharging nozzle; 13, placing tray; 14, NG tray; 15, first feeding and discharging positioning camera; 16, second feeding and discharging positioning camera; 17, tray platform; 18, movement module connecting part; 2, bearing and coupling system; 21, turntable and jig module; 211, high-precision turntable; 212, placing jig; 213, first jig positioning camera; 214, second jig positioning camera; 22, coupling module; 221, coupling movement platform; 222, high-precision electric control clamping jaw; 223, coupling positioning camera; 3, light-emitting switching system; 31, light-emitting element; 32, light-emitting connecting part; 4, light spot imaging system; 41, SAC lens; 42, beam splitter; 43, mirror; 44, near-field light spot imaging camera; 45, far-field light spot imaging camera; 46, imaging connecting part; 47, SAC fixing structure; 5, damping system; 51, base; 511, base body; 512, first movement module support part; 513, tray support part; 514, second movement module support part; 515, light spot imaging system support part; 516, light-emitting switching system support part; 52, support seat; 6, FAC lens. DETAILED DESCRIPTION

[0032] In order to make the objects, technical solutions and advantages of the present application clearer, the various exemplary embodiments to be described below will be described with reference to the corresponding drawings, which constitute a part of the exemplary embodiments, and various exemplary embodiments that can be used to implement the present application are described. Unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation described in the following exemplary embodiments does not represent all implementations consistent with the present disclosure. It should be understood that they are only examples of processes, methods and devices, etc. consistent with some aspects of the present disclosure as described in the appended claims, and other embodiments can be used, or structural and functional modifications can be made to the embodiments listed herein, without departing from the scope and spirit of the present application.

[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse" and the like indicate the orientation or positional relationship based on the drawings shown, only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the elements referred to must have a specific orientation, be constructed and operated in a specific orientation. The terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The term "a plurality of" means two or more. The terms "connected", "connected" should be broadly understood, for example, it can be fixed connection, detachable connection, integral connection, mechanical connection, electrical connection, communication connection, direct connection, indirect connection through intermediate medium, internal communication of two elements or interaction relationship between two elements. The term "and / or" includes any and all combinations of one or more related listed items. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] In order to illustrate the technical solutions of the present application, the following will be described by specific examples, only showing the parts related to the embodiments of the present application.

[0035] Embodiment:

[0036] As Figure 2 The present application provides a FAC lens coupling test device as shown in 10, which comprises a feeding and discharging system 1, a bearing and coupling system 2, a light emitting switching system 3 and a light spot imaging system 4; the feeding and discharging system 1 sends the FAC lenses 6 into the bearing and coupling system 2 one by one, and takes back the tested FAC lenses 6 one by one; the bearing and coupling system 2 can bear the FAC lenses 6 sent by the feeding and discharging system 1, and send them into the light emitting switching system 3; the light emitting switching system 3 emits light to the FAC lenses 6 for generating light spots, and can generate different light emitting qualities according to different terminal application scenarios; the light spot imaging system 4 collects the light spot images generated by the FAC lenses 6, analyzes the light spot images to obtain the coupling test results, and judges whether the tested FAC lenses meet the requirements. The present application realizes the feeding and position calibration of the FAC lenses through the feeding and discharging system and the bearing and coupling system, the light emitting switching system can generate various light rays to adapt to different use scenarios, and the FAC lens light spot images obtained by the light spot imaging system are analyzed to obtain the coupling test results, which is better than the consistency of the manual coupling test of the fast axis collimation mirror, ensures the accuracy of the test effect, at the same time, the test speed is improved through the automatic test, the batch test of the FAC lenses is facilitated, and the test requirements of different scenarios can also be met.

[0037] As an optional embodiment, as Figure 6As shown in Figure 8, the carrying and coupling system 2 includes a turntable and fixture module 21 and a coupling module 22. The loading and unloading system 1 feeds the FAC lens 6 into the turntable and fixture module 21 and retrieves the tested FAC lens 6 from the turntable and fixture module 21, thereby realizing the automatic testing of the FAC lens 6. The coupling module 22 removes the FAC lens 6 one by one from the turntable and fixture module 21 and aligns it with the corresponding position of the light emission switching system 3 to facilitate the automatic testing of the FAC lens 6. Of course, the coupling module 22 will also place the tested FAC lens 6 back on the placement fixture 212 of the turntable and fixture module 21.

[0038] As an optional implementation method, such as Figures 6-7 As shown, the turntable and fixture module 21 includes a high-precision turntable 211, a placement fixture 212, a first fixture positioning camera 213, and a second fixture positioning camera 214. The high-precision turntable 211 is composed of a servo motor and a harmonic reducer, or a servo motor and a hollow reducer, used to generate uniform low-speed rotation, facilitating accurate matching of the position of the placement fixture 212 with the first fixture positioning camera 213 and the second fixture positioning camera 214, thereby achieving precise monitoring of the position of the FAC lens 6 on the placement fixture 212. Multiple placement fixtures 212 are evenly distributed above the high-precision turntable 211. In this embodiment, there are eight placement fixtures 212, which are evenly distributed in the circumferential direction of the high-precision turntable 211 and are fixedly connected to the high-precision turntable 211. The placement fixtures 212 are used to accommodate the FAC lens 6 on the upper surface and are suctioned to the lower surface of the FAC lens 6 (the lower surface of the FAC lens 6 is usually flat) through the vacuum hole. The vacuum can be generated by existing technology. The suction through the vacuum hole can make the FAC lens 6 more firmly fixed, avoiding the high-precision turntable 211 from throwing the FAC lens 6 out or causing the FAC lens 6 to wobble slightly during rotation. Each placement fixture 212 carries one FAC lens 6. A first fixture positioning camera 213 and a second fixture positioning camera 214 monitor the relative position of the FAC lens 6 and the placement fixture 212 from the side and top / bottom directions, respectively, to ensure the FAC lens 6 is properly positioned above the placement fixture 212. If a positional deviation occurs, the position can be alerted or automatically corrected to continue testing. The first fixture positioning camera 213 and the second fixture positioning camera 214 can be connected to and fixed to the shock absorption system 5.

[0039] As an optional implementation method, such as Figure 8As shown, the coupling module 22 includes a coupling motion platform 221, a high-precision electric control clamp 222, and a coupling positioning camera 223. The coupling motion platform 221 is a six-degree-of-freedom motion platform, which facilitates precise control of the movement of the high-precision electric control clamp 222. By controlling the high-precision electric control clamp 222, the FAC lens 6 can be easily picked up or put down (the picking-up position of the high-precision electric control clamp 222 is generally the two ends of the FAC lens 6, i.e., the non-optical surface), and the position of different light-emitting elements 31 can be adjusted. Of course, the high-precision electric control clamp 222 can also be replaced by a suction nozzle for picking up or putting down the FAC lens 6. At the same time, the position of the light-emitting element 31 can also be adjusted by the coupling motion platform 221. By driving the plurality of light-emitting elements 31 to reciprocate in the X direction through the light-emitting connecting piece 32, the FAC lens 6 can be automatically tested under different light-emitting qualities. The high-precision electric control clamp 222 picks up or puts down the FAC lens 6 on the turntable and the jig module, and can be sent to the corresponding position of the light-emitting element. Specifically, before testing, the FAC lens 6 is picked up from the placement jig 212 to the corresponding position of the light-emitting element 31 by the high-precision electric control clamp 222, and after testing, the FAC lens 6 is put back on the placement jig 212 by the high-precision electric control clamp 222. The coupling positioning camera 223 monitors the position of the FAC lens 6 picked up by the high-precision electric control clamp 222 in real time, which facilitates the alignment between the FAC lens 6 and the light-emitting element 31, avoids the influence of position deviation on the analysis of the light spot result, and can be connected with the damping system 5 for fixation. The specific working principle of the coupling motion platform 221 is described in detail in the patent “Micro-lens coupling light path system, micro-lens coupling device, and micro-lens coupling method” (publication number CN114019626A, publication date 2022.02.08) applied by the applicant, and the specific working principle of the high-precision electric control clamp 222 is described in detail in the patent “Electric control clamp and optical element assembly equipment” (publication number CN113071917A, publication date 2021.07.06) applied by the applicant.

[0040] As an optional embodiment, as Figure 9As shown, the light spot imaging system 4 includes a SAC (Slow Axis Collimator Lens) lens 41, a beam splitter 42, a reflector 43, a near-field light spot imaging camera 44, and a far-field light spot imaging camera 45. It also includes an imaging connector 46 and an SAC fixing structure 47. The imaging connector 46 is connected to the light spot imaging system support 515 of the vibration damping system 5 and is used to fix the beam splitter 42, the reflector 43, the near-field light spot imaging camera 44, and the far-field light spot imaging camera 45. The SAC fixing structure 47 is connected to the imaging connector 46 and is used to place the SAC lens 41 on top. The SAC lens 41, beam splitter 42, and reflector 43 are arranged sequentially. The near-field light spot imaging camera 44 and the far-field light spot imaging camera 45 are respectively positioned directly above the beam splitter 42 and the reflector 43. Figure 7 The diagram illustrates the path of the light rays. After the light-emitting element 31 generates the test light, it passes through the FAC lens 6 under test and then enters the SAC lens 41. Part of the light passes through the beam splitter 42 and enters the near-field spot imaging camera 44, while the other part passes through the reflector 43 and enters the far-field spot imaging camera 45. The near-field spot imaging camera 44 is used for imaging the spot at a relatively close distance and can serve as a coarse-coupled camera (fast speed, slightly lower accuracy ≈0.5 micrometers). The far-field spot imaging camera 45 is used for imaging the spot at a relatively long distance or infinity and serves as a fine-coupled camera (slow speed, high accuracy ≈0.1 micrometers). Either the near-field spot imaging camera 44 or the far-field spot imaging camera 45 can be selected as needed. By analyzing the spot signals acquired by the near-field spot imaging camera 44 and / or the far-field spot imaging camera 45, the pass / fail status of the tested FAC lens can be determined.

[0041] As an optional implementation method, such as Figure 9As shown, the light-emitting switching system 3 includes a plurality of different light-emitting elements 31, which can test the light spots of the FAC lens 6 under different light-emitting qualities. In this embodiment, the number of light-emitting elements 31 is three, which are preferably uniformly distributed on the light-emitting connecting piece 32 to facilitate more accurate control. The light-emitting element 31 is a test element that can generate light. When the light-emitting connecting piece 32 moves in the horizontal direction, different light-emitting elements 31 can be aligned with the FAC lens 6 in turn to generate different light spots. The light spot can find the global optimum through automatic coupling, but the global optimum is closely related to the light beam of the light-emitting element. By testing different light-emitting qualities of the light-emitting element 31, the applicability of the test can be further increased, that is, if the critical / typical / good light-emitting element can find the best and quality light spot, it is considered that the optical element (i.e. FAC lens) meets the test requirements or quality requirements, thereby achieving a faster and more accurate test effect. By switching multiple light-emitting elements 31, different light-emitting elements in the terminal application scene can be corresponded, and good to bad light-emitting elements 31 can be traversed in one test, which increases the recognition ability of the light spot of the FAC lens with poor light-emitting, and effectively ensures the yield rate of the FAC lens.

[0042] As an optional implementation, as shown in Figures 4-5 As shown, the loading and unloading system 1 includes a motion module 11, a loading and unloading suction nozzle 12, a placing tray 13, and an NG tray 14. The placing tray 13 and the NG tray 14 are carried by a tray platform 17, and the tray platform 17 is fixed by being connected with a tray support 513. The placing tray 13 can accommodate a plurality of FAC lenses 6, and the NG tray 14 is used to accommodate a plurality of unqualified FAC lenses 6 after detection. Preferably, the number of placing trays 13 is multiple, and the number of NG trays 14 is one. The motion module 11 and the loading and unloading suction nozzle 12 are fixedly connected, and the motion module 11 drives the loading and unloading suction nozzle 12 to move. The loading and unloading suction nozzle 12 sucks the FAC lenses 6 from the placing tray 13 one by one and sends them to the high-precision turntable 211. The number of loading and unloading suction nozzles 12 can be multiple to speed up the operation. Of course, the FAC lenses 6 after testing can also be sucked from the high-precision turntable 211 and placed back on the placing tray 13 or the NG tray 14.

[0043] As an optional implementation, as shown in Figure 4As shown, the movement module 11 includes an X-axis movement piece 111, a Y-axis movement piece 112, and a Z-axis movement piece 113, as well as a camera movement piece 114, a tray platform movement piece 115, the camera movement piece 114 being connected with the first up and down feeding positioning camera 15 to drive the first up and down feeding positioning camera 15 to move along the Y direction, the tray platform movement piece 115 being connected with the tray platform 17 to drive the tray platform 17 to move along the X direction, so that the placement tray 13 and the NG tray 14 also move synchronously along the X direction. The X-axis movement piece 111, the Y-axis movement piece 112, and the Z-axis movement piece 113 can respectively drive the up and down feeding nozzle 12 to move along the X-axis direction, the Y-axis direction, and the Z-axis direction. The X-axis movement piece 111 is connected with the damping system 5, which can drive the Y-axis movement piece 112 and the camera movement piece 114 to move along the X-axis direction at the same time, so as to realize the movement of the up and down feeding nozzle 12 and the first up and down feeding positioning camera 15 along the X-axis direction. The Y-axis movement piece 112 is connected with the camera movement piece 114 at the top, connected with the X-axis movement piece 111 at the bottom, connected with the movement module connecting piece 18 at the other end, and the movement module connecting piece 18 is further connected with the second movement module support piece 514 at the bottom. The Z-axis movement piece 113 is connected with the Y-axis movement piece 112 and the up and down feeding nozzle 12.

[0044] As an optional embodiment, as shown in Figure 4 As shown, the up and down feeding system 1 further includes a first up and down feeding positioning camera 15 and a second up and down feeding positioning camera 16, which are arranged at intervals and can be fixed by being connected with the damping system 5. The first up and down feeding positioning camera 15 is located above the placement tray 13 and monitors the position of each FAC lens 6 to monitor whether the position of each FAC lens 6 on the placement tray 13 has been aligned, so as to facilitate the accurate suction of the up and down feeding nozzle 12. The second up and down feeding positioning camera 16 is located below the up and down feeding nozzle 12 and can be fixed by being connected with the damping system 5, monitors the position and angle of each FAC lens 6, so as to facilitate the FAC lens 6 to be sent to the placement jig 212 at a suitable angle.

[0045] As an optional embodiment, as shown in Figure 10As shown, it also includes a damping system 5, which includes a base 51 and a support seat 52, the base 51 is connected with the feeding and discharging system 1, the rotary table and jig module 21, the light switching system 3, the light spot imaging system 4 and the coupling module 22, for supporting and fixing, and the specific connection mode can be bolt, screw, riveting and the like. Specifically, the base 51 includes a base body 511, a first motion module support 512, a tray support 513, a second motion module support 514, a light spot imaging system support 515, and a light switching system support 516. The base body 511 is connected with other components in a certain structure or fixedly. Among them, the first motion module support 512 and the second motion module support 514 jointly support and fix the feeding and discharging system 1, the tray support 513 is used to support and fix the tray platform 17 on which the tray 13 and the NG tray 14 are placed, the light spot imaging system support 515 is used to connect and fix the light spot imaging system, and the light switching system support 516 is used to support and fix the light connection piece 32 of the light switching system 3. The support seat 52 is connected with the base 51, and specifically, the support seat 52 is a support leg, and the number is preferably 4. The base 51 is marble, and the support seat 52 is air floating damping, which can play a good damping effect and avoid the slight vibration of the application during use to cause the position of the FAC lens 6 to deviate.

[0046] The embodiment is only a specific example, and does not indicate that the application is such an implementation.

[0047] The above is only the preferred embodiment of the present application, and those skilled in the art know that various changes or equivalent replacements can be made to the features and embodiments without departing from the spirit and scope of the present application. In addition, the features and embodiments can be modified to adapt to specific conditions and materials under the guidance of the present application without departing from the spirit and scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are within the protection scope of the present application.

Claims

1. A FAC lens coupling test apparatus, characterized by, The system comprises an upper and lower feeding system (1), a bearing and coupling system (2), a light-emitting switching system (3) and a light spot imaging system (4); the upper and lower feeding system (1) feeds the FAC lenses (6) into the bearing and coupling system (2) one by one, and takes the tested FAC lenses (6) back one by one; the bearing and coupling system (2) can bear the FAC lenses (6) fed by the upper and lower feeding system (1) and send them into the light-emitting switching system (3); the light-emitting switching system (3) emits light on the FAC lenses (6) to generate light spots, and the light spot imaging system (4) collects the light spot images generated by the FAC lenses (6); The upper and lower feeding system (1) comprises a motion module (11), an upper and lower feeding nozzle (12), a placing tray (13) and an NG tray (14); the placing tray (13) can accommodate a plurality of FAC lenses (6), and the NG tray (14) is used to accommodate a plurality of unqualified FAC lenses (6) after detection; the motion module (11) drives the upper and lower feeding nozzle (12) to move; the upper and lower feeding nozzle (12) sucks the FAC lenses (6) from the placing tray (13) one by one and sends them to a high-precision turntable (211), and puts the tested FAC lenses (6) back to the placing tray (13) or the NG tray (14); The light-emitting switching system (3) comprises different light-emitting elements (31), which can test the light spots of the FAC lenses (6) under different light-emitting qualities; the number of the light-emitting elements (31) is three, and they are uniformly distributed on a light-emitting connecting piece (32); when the light-emitting connecting piece (32) moves horizontally, the three light-emitting elements (31) align the FAC lenses (6) in turn to generate different light spots.

2. The FAC lens coupling test apparatus of claim 1, wherein, The bearing and coupling system (2) comprises a turntable and jig module (21) and a coupling module (22); the upper and lower feeding system (1) feeds the FAC lenses (6) into the turntable and jig module (21) and takes the tested FAC lenses (6) back from the turntable and jig module (21); the coupling module (22) takes out the FAC lenses (6) from the turntable and jig module (21) one by one and aligns the corresponding positions of the light-emitting switching system (3).

3. The FAC lens coupling test apparatus of claim 2, wherein, The turntable and jig module (21) comprises a high-precision turntable (211), a placing jig (212), a first jig positioning camera (213) and a second jig positioning camera (214); the placing jig (212) is a plurality of jigs, which are uniformly distributed above the high-precision turntable (211) and fixedly connected with the high-precision turntable (211); each placing jig bears one FAC lens (6), and the first jig positioning camera (213) and the second jig positioning camera (214) monitor the positions between the FAC lenses (6) and the placing jigs (212) from the side direction and the up-down direction, respectively.

4. The FAC lens coupling test apparatus of claim 2, wherein, The coupling module (22) comprises a coupling motion platform (221), a high-precision electric control clamp (222) and a coupling positioning camera (223); the coupling motion platform (221) is a six-degree-of-freedom motion platform, used for controlling the motion of the high-precision electric control clamp (222) and capable of adjusting the positions of different light emitting elements (31); the high-precision electric control clamp (222) clamps or releases the FAC lens (6) on the turntable and jig module (21) and is capable of sending the FAC lens (6) to the corresponding position of the light emitting element (31); the coupling positioning camera (223) monitors the position of the FAC lens (6) clamped by the high-precision electric control clamp (222) in real time.

5. The FAC lens coupling test apparatus of claim 1, wherein, The light spot imaging system (4) comprises an SAC lens (41), a beam splitter (42), a mirror (43), a near-field light spot imaging camera (44) and a far-field light spot imaging camera (45); the SAC lens (41), the beam splitter (42) and the mirror (43) are sequentially arranged, and the near-field light spot imaging camera (44) and the far-field light spot imaging camera (45) are respectively arranged above the beam splitter (42) and the mirror (43).

6. The FAC lens coupling test apparatus of claim 1, wherein, The motion module (11) comprises an X-axis motion part (111), a Y-axis motion part (112) and a Z-axis motion part (113); the X-axis motion part (111), the Y-axis motion part (112) and the Z-axis motion part (113) are capable of respectively driving the feeding and discharging nozzle (12) to move along the X-axis direction, the Y-axis direction and the Z-axis direction.

7. The FAC lens coupling test apparatus of claim 1, wherein, The feeding and discharging system (1) further comprises a first feeding and discharging positioning camera (15) and a second feeding and discharging positioning camera (16); the first feeding and discharging positioning camera (15) and the second feeding and discharging positioning camera (16) are arranged at intervals; the first feeding and discharging positioning camera (15) is located above the placing tray (13) and monitors the position of each FAC lens (6); the second feeding and discharging positioning camera (16) is located below the feeding and discharging nozzle (12) and monitors the position and angle of each FAC lens (6).

8. The FAC lens coupling test apparatus of claim 1, wherein, The feeding and discharging system (1) further comprises a first feeding and discharging positioning camera (15) and a second feeding and discharging positioning camera (16); the first feeding and discharging positioning camera (15) and the second feeding and discharging positioning camera (16) are arranged at intervals; the first feeding and discharging positioning camera (15) is located above the placing tray (13) and monitors the position of each FAC lens (6); the second feeding and discharging positioning camera (16) is located below the feeding and discharging nozzle (12) and monitors the position and angle of each FAC lens (6). The feeding and discharging system (1) further comprises a first feeding and discharging positioning camera (15) and a second feeding and discharging positioning camera (16); the first feeding and discharging positioning camera (15) and the second feeding and discharging positioning camera (16) are arranged at intervals; the first feeding and discharging positioning camera (15) is located above the placing tray (13) and monitors the position of each FAC lens (6); the second feeding and discharging positioning camera (16) is located below the feeding and discharging nozzle (12) and monitors the position and angle of each FAC lens (6).

Images