A system for detecting an optical element

Abstract

The present application relates to the technical field of optical element detection, and specifically relates to an optical element detection system, which comprises a light source, a first single-mode optical fiber, a plurality of converging lenses arranged movably, a plurality of second single-mode optical fibers, light output by the light source sequentially passes through the first single-mode optical fiber, the converging lenses and the second single-mode optical fibers and is finally input to a light power meter; a to-be-detected optical element is placed in an optical path between the first single-mode optical fiber and the converging lenses, and the value of the light power meter can be read; for an optical element outputting a beam of light, the value can directly reflect whether the optical element is qualified; for an optical element outputting multiple beams of light, it is also necessary to judge whether the light spacing of the multiple beams of light is qualified; when the light power of the multiple beams of light is up to standard when the converging lenses are not removed, and the light power attenuation rates of the multiple beams of light are similar after the converging lenses are removed, the optical element is judged to be qualified; it can be seen that the optical element detection system of the present application can be applied to detection of optical elements outputting only one beam of light and multiple beams of light.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of optical element detection, and particularly to an optical element detection system. BACKGROUND

[0002] In the past, in order to detect whether an optical element is qualified, a beam quality analyzer is used for detection, but the beam quality analyzer is high in cost and is not suitable for large-scale batch application.

[0003] In order to solve the above technical problems, an engineer proposes a new detection scheme, that is, a Gaussian beam is incident to an optical element by using a single-mode optical fiber, and then the optical element is guided to a light power meter by using a single-mode optical fiber to determine whether the optical element is qualified; since the beam energy of the single-mode optical fiber is approximately Gaussian distribution, it can be called Gaussian beam, and the Gaussian beam energy coupling efficiency is very sensitive, as long as there is a problem with the optical element, the value detected by the light power meter will be much smaller than the preset value, and because the cost of the light power meter is much lower than that of the beam quality analyzer, the detection scheme is low in cost.

[0004] However, the above detection scheme is only applicable to detecting an optical element that emits one beam, and cannot be used to detect an optical element that emits multiple beams. SUMMARY

[0005] The technical problem to be solved by the embodiments of the present application is to provide an optical element detection system to solve the problem that the scheme for detecting whether an optical element is qualified by using a Gaussian beam in the prior art is only applicable to detecting an optical element that emits only one beam, and has poor universality.

[0006] The optical element detection system provided by the embodiments of the present application comprises: a light source; a first single-mode optical fiber comprising a first input end and a first output end arranged oppositely, the first input end being located on an exit light path of the light source; a plurality of converging lenses, one of which is located on an exit light path of the first output end, and the plurality of converging lenses are arranged in an array in a first direction, and the first direction is arranged at an angle with respect to an incident direction of the converging lenses; a plurality of second single-mode optical fibers each comprising a second input end and a second output end arranged oppositely, and the plurality of second input ends are respectively located on exit light paths of the plurality of converging lenses; and a light power meter connected with the second output end; wherein the plurality of converging lenses are movably arranged, so that the plurality of converging lenses can be moved away from the incident light paths of the plurality of second input ends.

[0007] Optionally, the light source and the first single-mode optical fiber are provided with a plurality of light sources, and the plurality of first output ends are respectively located on the light path of the plurality of light sources, and the plurality of first output ends are arranged in an array in the first direction, and the plurality of converging lenses are respectively located in the emission direction of the plurality of first output ends; the optical power meter is provided with a plurality of optical power meters, and the plurality of optical power meters are respectively connected with the plurality of second output ends, or the optical power meter is a multi-channel optical power meter, and the multi-channel optical power meter is connected with the plurality of second output ends.

[0008] Optionally, it further comprises a first mounting seat movably arranged on one side of the first output end, and the plurality of converging lenses are fixedly arranged on the first mounting seat.

[0009] Optionally, the plurality of converging lenses are integrally formed with the first mounting seat.

[0010] Optionally, it further comprises a second mounting seat arranged on one side of the first output end, and the second mounting seat is provided with a slot on one side facing the first output end, and the first mounting seat is detachably inserted into the slot.

[0011] Optionally, it further comprises a second mounting seat arranged on one side of the first output end, and the second mounting seat is provided with a plurality of first V-shaped grooves, and the plurality of second input ends are respectively arranged in the plurality of first V-shaped grooves, and the plurality of converging lenses are detachably arranged on the second mounting seat.

[0012] Optionally, it further comprises a third mounting seat arranged on one side of the converging lens away from the second input end; and the third mounting seat is provided with a second V-shaped groove for mounting the first output end.

[0013] Optionally, it further comprises a bottom plate, and the second mounting seat and the third mounting seat are arranged on the bottom plate and integrally formed with the bottom plate.

[0014] Optionally, it further comprises a feeding and discharging device arranged between the first output end and the plurality of converging lenses, for transporting optical elements to and away from the light path between the first output end and the plurality of converging lenses.

[0015] Optionally, the feeding and discharging device comprises a synchronous belt arranged between the plurality of first output ends and the plurality of converging lenses, a driving wheel for supporting the synchronous belt, a driven wheel for supporting the synchronous belt, the driven wheel being arranged at intervals with the driving wheel, and a rotating motor connected with the driving wheel to drive the driving wheel to rotate.

[0016] Compared with the prior art, the optical element detection system provided by the embodiment of the present application has the beneficial effect that the optical element detection system provided by the embodiment of the present application comprises an optical element detection system which comprises a light source, a first single-mode optical fiber, a plurality of movable converging lenses, a plurality of second single-mode optical fibers and an optical power meter; light output by the light source sequentially passes through the first single-mode optical fiber, the converging lens and the second single-mode optical fiber and is finally input to the optical power meter; when an optical element capable of outputting a light beam needs to be detected, the optical element only needs to be arranged in the light path between the first output end and the converging lens, and the value measured by the optical power meter is compared with a preset value, so that whether the optical element is qualified can be judged; when an optical element capable of outputting a plurality of light beams needs to be detected, the optical element only needs to be arranged in the light path between the first output end and the converging lens first, and whether the value of the optical power meter is lower than the preset value is judged; if the value is lower than the preset value, the optical element is judged to be unqualified; if the value is not lower than the preset value, the converging lens is removed, and the optical power will attenuate after the converging lens is removed; if the light spacing of the outputted multiple light beams is qualified, the power attenuation rates of the multiple light beams should be similar; if the power attenuation rates of the multiple light beams are quite different, it is judged that the optical element is unqualified; thus, it can be seen that the optical element detection system of the present application can not only be applied to optical elements emitting a light beam, but also can be applied to optical elements emitting multiple light beams. BRIEF DESCRIPTION OF DRAWINGS

[0017] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings and embodiments. In the drawings:

[0018] Figure 1 is a perspective view of part of the structure of the optical element detection system provided by the embodiment of the present application;

[0019] Figure 2 is a structural diagram of the optical element detection system provided by the embodiment of the present application;

[0020] Figure 3 is a perspective view of the light path in which the beam splitter prism is arranged between the first output end and the converging lens provided by the embodiment of the present application;

[0021] Figure 4 is a structural diagram of the etalon provided by the embodiment of the present application;

[0022] Figure 5 is a structural diagram of the second mounting seat and the third mounting seat being integrally formed.

[0023] The reference signs in the drawings are as follows:

[0024] 1000, optical element detection system;

[0025] 100, Light source; 200, First single-mode fiber; 210, First input end; 220, First output end; 310, Converging lens; 320, First mounting base; 400, Second single-mode fiber; 410, Second input end; 420, Second output end; 500, Optical power meter; 610, Second mounting base; 611, First V-groove; 620, Third mounting base; 621, Second V-groove; 630, Base plate; 700, First cover plate; 800, Second cover plate;

[0026] 8000, standard fixture; 8100, flat surface;

[0027] 9000, beam splitter. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0029] This invention provides a detection system 1000 for optical elements, such as... Figures 1-5 As shown, the optical element detection system 1000 includes a light source 100, a first single-mode fiber 200, a plurality of converging lenses 310, a plurality of second single-mode fibers 400, and an optical power meter 500. The first single-mode fiber 200 includes a first input end 210 and a first output end 220 arranged opposite to each other, with the first input end 210 located on the output optical path of the light source 100. One of the converging lenses 310 is located on the output optical path of the first output end 220, and the plurality of converging lenses 310 are arranged in a first direction (…). Figure 1 The array is arranged in the X direction (as shown), and the first direction is the incident direction of the converging lens 310. Figure 1 The angle between the Y-direction shown is set. Each of the several second single-mode fibers 400 includes a second input end 410 and a second output end 420 arranged opposite to each other. The several second input ends 410 are respectively located on the output optical path of the several converging lenses 310. An optical power meter 500 is used to connect to the second output end 420. The several converging lenses 310 are all movable, allowing them to be removed from the incident optical path of the several second input ends 410.

[0030] By implementing this embodiment, the light output by the light source 100 is incident on the first input end 210 of the first single-mode fiber 200, and then exits from the first output end 220 of the first single-mode fiber 200. After passing through the converging lens 310, it is incident on the second input end 410 of the second single-mode fiber 400, and then output from the second output end 420 of the second single-mode fiber 400 to the optical power meter 500.

[0031] When testing an optical element that outputs a beam of light, it is only necessary to place the optical element in the optical path between the first output terminal 220 and the converging lens 310, and compare the value measured by the optical power meter 500 with a preset value to determine whether the optical element is qualified. More specifically, if the measured value is not lower than the preset value, the optical element is considered qualified; if the measured value is lower than the preset value, the optical element is considered unqualified.

[0032] refer to Figure 4 Taking the etalon 8000 (Etalon) as an example, the etalon 8000 includes two planes 8100, each with a certain reflectivity. These two planes 8100 form a resonant cavity, where the light beam reflects back and forth. For a qualified etalon 8000, the parallelism of the two planes 8100 must be very high. If the parallelism is not high enough, there will inevitably be a relatively large angle between the emitted and received light, and the power measured by the optical power meter 500 will be lower than the preset value.

[0033] When testing an optical element capable of outputting multiple beams, it is only necessary to first place the optical element in the optical path between the first output end 220 and the converging lens 310. The multiple beams output by the optical element will enter several second single-mode optical fibers 400 through several converging lenses 310, and finally be output to the optical power meter 500 through the second output ends 420 of the several second single-mode optical fibers 400. First, the optical power meter 500 is used to determine whether the power of each beam is lower than a preset value. If it is lower than the preset value, the optical element is judged to be unqualified. If it is not lower than the preset value, the optical spacing qualification test step is entered. In this step, the converging lens 310 needs to be removed. After the converging lens 310 is removed, the optical power will attenuate. If the optical spacing of the output multiple beams is qualified, the power attenuation rate of the multiple beams should be similar. If the power attenuation rate of the multiple beams differs greatly, the optical element is judged to be unqualified.

[0034] refer to Figure 3 Taking the beam splitter 9000 as an example, the beam splitter 9000 can split the incident light into two beams. If the two outgoing beams have a large angle with the preset outgoing direction, the power measured by the optical power meter 500 will be lower than the preset value. If the power measured by the optical power meter 500 meets the standard, it is still necessary to determine whether the optical distance between the two beams meets the standard. At this time, it is only necessary to move the converging lens 310 away. After the converging lens 310 is moved away, the optical power will be attenuated. If the optical distance between the two output beams is qualified, then the power attenuation rate of the two beams should be similar.

[0035] Therefore, the optical element detection system 1000 of the present invention can be applied not only to optical elements that emit a single beam of light, but also to optical elements that emit multiple beams of light.

[0036] It is worth mentioning that there are many specific implementations of the optical power meter 500 in this embodiment, and this embodiment does not limit them here, as long as they can detect the power of the beam output from the second output terminal 420. For example, there is only one optical power meter 500, and the optical power of different beams can be identified by changing the second single-mode fiber 400 connected to the optical power meter 500; or there are multiple optical power meters 500, and the second output terminal 420 of each second single-mode fiber 400 is connected to an optical power meter 500; or the optical power meter 500 is a multi-channel optical power meter 500, which can be connected to the second output terminals 420 of multiple second single-mode fibers 400 and identify the power of the beams output from the multiple second single-mode fibers 400.

[0037] refer to Figures 1-5 In a specific embodiment, several light sources 100 and first single-mode optical fibers 200 are provided. Several first output terminals 220 are respectively located on the outgoing optical paths of several light sources 100. The several first output terminals 220 are arranged in an array in a first direction. Several converging lenses 310 are respectively located in the outgoing directions of several first output terminals 220. Several optical power meters 500 are provided. The several optical power meters 500 are respectively connected to several second output terminals 420. Alternatively, the optical power meters 500 are multi-channel optical power meters 500, and the multi-channel optical power meters 500 are connected to several second output terminals 420.

[0038] By implementing this embodiment, light emitted from several light sources 100 can be incident on several converging lenses 310 via several first single-mode optical fibers 200. Therefore, by setting an optical element that outputs a beam of light in the optical path between each first single-mode optical fiber 200 and the corresponding converging lens 310, it is possible to simultaneously detect multiple optical elements that output a beam of light using the detection system 1000 of the optical element.

[0039] For example, two light sources 100, two first single-mode optical fibers 200, two converging lenses 310, and two second single-mode optical fibers 400 are provided, so that the detection system 1000 of optical elements can simultaneously detect two etalons 8000 in the above embodiments.

[0040] It is worth mentioning that, provided there are enough converging lenses 310 and second single-mode optical fibers 400, this embodiment can also be used to simultaneously detect optical elements that output multiple beams.

[0041] For example, four light sources 100, four first single-mode optical fibers 200, four converging lenses 310, and four second single-mode optical fibers 400 are provided. This allows the optical element detection system 1000 to simultaneously detect four etalons 8000 in the above embodiments, and also allows the optical element detection system 1000 to simultaneously detect two beam splitters 9000 in the above embodiments. Of course, detecting two beam splitters 9000 only requires two light sources 100, in which case the other two unused light sources 100 can be turned off.

[0042] refer to Figures 1-5 In some embodiments, the optical element detection system 1000 further includes a first mounting base 320, which is movably disposed on one side of the first output terminal 220, and a plurality of converging lenses 310 are fixedly disposed on the first mounting base 320.

[0043] Specifically, since all the converging lenses 310 in this embodiment are fixed on the first mounting base 320, only the first mounting base 320 needs to be moved when all the converging lenses 310 need to be moved. Compared with embodiments that require moving the converging lenses 310 one by one, this embodiment can effectively improve the moving efficiency of the converging lenses 310, and therefore this embodiment can greatly improve the detection efficiency of the optical element detection system 1000.

[0044] It is worth mentioning that there are many ways to implement the first mounting base 320 in a movable manner. This embodiment does not limit it here. Several embodiments are listed below for illustration.

[0045] In Embodiment 1: The first mounting base 320 is detachable. The first mounting base 320 is installed when the converging lens 310 is needed, and removed when the converging lens 310 is not needed.

[0046] refer to Figures 1-5 In a specific embodiment, the optical element detection system 1000 further includes a second mounting base 610, which is disposed on one side of the first output terminal 220. The second mounting base 610 has a slot (not shown in the figure) on the side facing the first output terminal 220, and the first mounting base 320 is detachably inserted into the slot. With this configuration, when several converging lenses 310 are needed, the first mounting base 320 is inserted into the slot to install the lenses; when the lenses are no longer needed, the first mounting base 320 is removed from the slot to disassemble them.

[0047] In Embodiment 2: The detection system 1000 for optical elements further includes a linear drive assembly (not shown in the figure). The linear drive assembly is connected to the first mounting base 320 and is used to drive the first mounting base 320 to move linearly, thereby enabling a plurality of converging lenses 310 to be moved away from the incident light path of a plurality of second input terminals 410.

[0048] With this setup, when there is no need to use several converging lenses 310, the linear drive assembly can be used to remove several converging lenses 310, and when several converging lenses 310 need to be used, the linear drive assembly can be reset, which is very convenient.

[0049] refer to Figures 1-5 In some embodiments, a plurality of converging lenses 310 are integrally formed with the first mounting base 320. This arrangement saves on mold and assembly costs associated with the converging lenses 310 and the first mounting base 320, and also avoids assembly errors between the converging lenses 310 and the first mounting base 320. Therefore, implementing this embodiment not only reduces the production cost of the optical element detection system 1000, but also effectively improves the detection accuracy of the optical element detection system 1000, achieving multiple benefits.

[0050] Furthermore, the converging lenses 310 and the first mounting base 320 are manufactured using a molding process. It is only necessary to first make a mold according to the pre-designed structure, then melt the material and inject it into the mold, and then cool, anneal and demold to obtain the desired structural component.

[0051] refer to Figures 1-5 In some embodiments, the optical element detection system 1000 further includes a second mounting base 610, which is disposed on one side of the first output terminal 220. The second mounting base 610 is provided with a plurality of first V-grooves 611, a plurality of second input terminals 410 are respectively mounted in the plurality of first V-grooves 611, and a plurality of converging lenses 310 are detachably mounted on the second mounting base 610.

[0052] Specifically, the second mounting base 610 in this embodiment can not only be used to position a plurality of second input terminals 410, but also to mount a plurality of converging lenses 310. Compared with the embodiment that requires two mounting bases (not shown in the figure), one mounting base for positioning a plurality of second input terminals 410 and the other mounting base for mounting a plurality of converging lenses 310, the structure of this embodiment is simple and can effectively reduce the structural complexity of the optical element detection system 1000.

[0053] refer to Figures 1-5 In a specific embodiment, the optical element detection system 1000 further includes a first cover plate 700, which is movably mounted on the top of the first V-groove 611 to cooperate with the first V-groove 611 to fix the second input terminal 410.

[0054] Specifically, when the second input terminal 410 needs to be installed, first remove the first cover plate 700, place the second input terminal 410 in the first V-groove 611, and then cover it with the first cover plate 700. The second input terminal 410 can then be pressed together by the first cover plate 700 and the first V-groove 611.

[0055] In a specific embodiment, the optical element detection system 1000 further includes a first lifting assembly (not shown in the figure). The first lifting assembly is connected to the first cover plate 700. When the second input terminal 410 needs to be installed, the first lifting assembly is used to raise the first cover plate 700, and the second input terminal 410 is placed in the first V-groove 611. Then, the first lifting assembly is used to lower the first cover plate 700, so that the first cover plate 700 can cooperate with the first V-groove 611 to press the second input terminal 410.

[0056] In a specific embodiment, the first lifting assembly includes a first rotary drive (not shown in the figure), a first lead screw (not shown in the figure), a first fixed seat (not shown in the figure), and a first movable seat (not shown in the figure). One end of the first lead screw is connected to the first rotary drive so that the first rotary drive can drive the first lead screw to rotate. The other end of the first lead screw is rotatably connected to the first fixed seat so that the first fixed seat can increase the stability of the first lead screw during rotation. The first movable seat is threadedly connected to the first lead screw so that when the first lead screw rotates, it can drive the first movable seat to move along the first lead screw. The first cover plate 700 is connected to the first movable seat, so that when the first lead screw rotates, the first cover plate 700 can also move along the first lead screw. The advantage of this embodiment is that it can drive the first cover plate 700 to move with high precision, reducing the probability of damaging the second input end 410.

[0057] refer to Figures 1-5 In some embodiments, the detection system 1000 for optical elements further includes a third mounting base 620 disposed on the side of the converging lens 310 away from the second input terminal 410, and the third mounting base 620 is provided with a second V-groove 621 for mounting the first output terminal 220.

[0058] Specifically, the second V-groove 621 can be used to position the first output end 220, thereby improving the detection accuracy of the optical element detection system 1000.

[0059] refer to Figures 1-5 In a specific embodiment, the detection system 1000 for optical elements further includes a second cover plate 800, which is movably mounted on the top of the second V-groove 621 to cooperate with the second V-groove 621 to fix the first output end 220.

[0060] Specifically, when the first output terminal 220 needs to be installed, the second cover plate 800 is first removed, the first output terminal 220 is placed in the second V-groove 621, and then the second cover plate 800 is put on, so that the first output terminal 220 can be pressed by the second cover plate 800 and the second V-groove 621.

[0061] In a specific embodiment, the optical element detection system 1000 further includes a second lifting assembly (not shown in the figure). The second lifting assembly is connected to the second cover plate 800. When the first output end 220 needs to be installed, the second lifting assembly is used to raise the second cover plate 800, and the first output end 220 is placed in the second V-groove 621. Then, the second lifting assembly is used to lower the second cover plate 800, so that the second cover plate 800 can cooperate with the second V-groove 621 to press the first output end 220.

[0062] In a specific embodiment, the second lifting assembly includes a second rotary drive (not shown in the figure), a second lead screw (not shown in the figure), a second fixed seat (not shown in the figure), and a second movable seat (not shown in the figure). One end of the second lead screw is connected to the second rotary drive so that the second rotary drive can drive the second lead screw to rotate. The other end of the second lead screw is rotatably connected to the second fixed seat so that the second fixed seat can increase the stability of the second lead screw during rotation. The second movable seat is threadedly connected to the second lead screw so that the second movable seat can move along the lead screw when the second lead screw rotates. The second cover plate 800 is connected to the second movable seat, so that the second cover plate 800 can also move along the second lead screw when the second lead screw rotates. The advantage of this embodiment is that it can drive the second cover plate 800 to move with high precision, reducing the probability of damaging the first output end 220.

[0063] refer to Figures 1-5 In some embodiments, the optical element detection system 1000 further includes a base plate 630, on which the second mounting base 610 and the third mounting base 620 are both disposed and integrally formed with the base plate 630.

[0064] refer to Figures 1-5 By implementing this embodiment, the second mounting base 610 and the third mounting base 620 can be integrally formed, which effectively reduces mold opening and assembly costs and avoids assembly errors. Therefore, implementing this embodiment not only lowers the production cost of the optical component detection system 1000 but also effectively improves the detection accuracy of the optical component detection system 1000.

[0065] In some embodiments, the optical element detection system 1000 further includes a loading and unloading device (not shown in the figure), which is disposed between the first output end 220 and a plurality of converging lenses 310. The loading and unloading device is used to transport optical elements into the optical path between the first output end 220 and the plurality of converging lenses 310, and to transport the optical elements that have completed detection away from the optical path between the first output end 220 and the plurality of converging lenses 310.

[0066] By implementing this embodiment, automated loading and unloading of optical components can be achieved, effectively improving the detection efficiency of the optical component detection system 1000 and reducing the detection cost of the optical component detection system 1000.

[0067] In a specific embodiment, the loading and unloading device includes a timing belt (not shown in the figure), a driving pulley (not shown in the figure), a driven pulley (not shown in the figure), and a rotary motor (not shown in the figure). The timing belt is disposed between a plurality of first output ends 220 and a plurality of converging lenses 310. The driving pulley is used to support the timing belt, the driven pulley is used to support the timing belt, and the driven pulley and the driving pulley are spaced apart. The rotary motor is connected to the driving pulley to drive the driving pulley to rotate.

[0068] By implementing this embodiment, as long as the rotary motor is started, it can drive the drive wheel to rotate. Since the drive wheel and the driven wheel cooperate to support the synchronous belt, the synchronous belt will run. This will move the undetected optical elements on the synchronous belt to the optical path between the first output end 220 and the converging lens 310, and remove the optical elements that have been detected from the optical path between the first output end 220 and the converging lens 310.

[0069] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of the present invention.

Claims

1. A detection system for an optical element, characterized in that, include: Several light sources; A plurality of first single-mode optical fibers, each including a first input end and a first output end arranged opposite to each other, wherein the plurality of first input ends are respectively located in the output optical path of the plurality of light sources; and the plurality of first output ends are arranged in an array in a first direction. A plurality of converging lenses are respectively located on the outgoing light paths of a plurality of first output terminals. The plurality of converging lenses are arranged in an array in the first direction, and the first direction is set at an angle to the incident direction of the converging lenses. The plurality of converging lenses are spaced apart from the plurality of first output terminals, and there is space between the plurality of converging lenses and the plurality of first output terminals for accommodating optical elements. A plurality of second single-mode optical fibers, each including a second input end and a second output end arranged opposite to each other, wherein the plurality of second input ends are respectively located on the outgoing optical path of the plurality of converging lenses; An optical power meter, wherein there are several optical power meters, and the several optical power meters are respectively connected to several second output terminals; or, the optical power meter is a multi-channel optical power meter, and the multi-channel optical power meter is connected to several second output terminals. The converging lenses can be movably disposed so that they can be moved away from the incident light path of the second input terminals.

2. The detection system for optical elements according to claim 1, characterized in that, It also includes a first mounting base, which is movably disposed on one side of the first output end, and several converging lenses are fixed on the first mounting base.

3. The detection system for optical elements according to claim 2, characterized in that, Several converging lenses are integrally formed with the first mounting base.

4. The detection system for optical elements according to claim 2, characterized in that, It also includes a second mounting base, which is disposed on one side of the first output end. The second mounting base has a slot on the side facing the first output end, and the first mounting base is detachably inserted into the slot.

5. The detection system for optical elements according to claim 1, characterized in that, It also includes a second mounting base, which is disposed on one side of the first output end. The second mounting base is provided with a plurality of first V-shaped grooves, and a plurality of second input ends are respectively mounted in a plurality of first V-shaped grooves. A plurality of converging lenses are detachably mounted on the second mounting base.

6. The detection system for optical elements according to claim 5, characterized in that, It also includes a third mounting base, which is disposed on the side of the converging lens away from the second input terminal; the third mounting base is provided with a second V-groove for mounting the first output terminal.

7. The detection system for optical elements according to claim 6, characterized in that, It also includes a base plate, on which the second mounting base and the third mounting base are both disposed and integrally formed.

8. The detection system for optical elements according to claim 1, characterized in that, It also includes a loading and unloading device, which is disposed between the first output end and the plurality of converging lenses, for transporting optical elements into the optical path between the first output end and the plurality of converging lenses, and for transporting the optical elements that have completed testing away from the optical path between the first output end and the plurality of converging lenses.

9. The detection system for optical elements according to claim 8, characterized in that, The loading and unloading device includes: A synchronization belt is disposed between several of the first output terminals and several of the converging lenses; The drive pulley is used to support the timing belt; The driven pulley is used to support the synchronous belt, and the driven pulley is spaced apart from the driving pulley; A rotary motor is connected to the drive wheel to drive the drive wheel to rotate.

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