CN116045831A - Lens gluing gap monitoring method and device, control terminal and storage medium - Google Patents

Lens gluing gap monitoring method and device, control terminal and storage medium Download PDF

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Publication number
CN116045831A
CN116045831A CN202211103475.4A CN202211103475A CN116045831A CN 116045831 A CN116045831 A CN 116045831A CN 202211103475 A CN202211103475 A CN 202211103475A CN 116045831 A CN116045831 A CN 116045831A
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light
lens
optical fiber
reflected
wavelength
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刘爱江
黄继欣
张梦
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Shenzhen JPT Optoelectronics Co Ltd
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Shenzhen JPT Optoelectronics Co Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures

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  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

The invention relates to the field of gap measurement, and discloses a method and a device for monitoring a lens gluing gap, a control terminal and a storage medium, wherein the method comprises the following steps: incident light is injected into the lens to be glued, and interference light formed by reflection of the upper surface and the lower surface of the gluing layer of the lens to be glued is received; and acquiring the wavelength and the light intensity of the interference light, and calculating the distance between the bonding layers on the incidence point of the incident light according to the wavelength and the light intensity. The distance between the incident points is directly acquired through the reflected light, so that the whole measuring process is simple and rapid, high requirements on measuring instruments are not required, the measuring cost is reduced, the method can adapt to the testing requirements of various lenses, and the testing difficulty is simplified.

Description

Lens gluing gap monitoring method and device, control terminal and storage medium
Technical Field
The present invention relates to the field of gap measurement, and in particular, to a method and apparatus for monitoring a lens bonding gap, a control terminal, and a storage medium.
Background
The lens is one of the most basic optical elements in an optical system. Today, domestic lenses and industrial lenses have extremely high performance pursuit, and imaging quality is used as the most important measure of lens performance, and the requirements are also higher and higher. However, the gap width between lenses directly affects the imaging quality, and slight assembly errors may cause a dramatic drop in the modulation transfer function for the entire lens assembly. Moreover, today's imaging systems have widely used aspherical mirrors to correct aberrations and improve imaging quality and simplify optical structures. However, aspherical mirrors further lead to irregular inter-mirror distance variations compared to spherical mirrors, which requires multipoint measurement techniques to achieve accurate assembly. Therefore, it is necessary to design a measuring method and device capable of measuring the lens gap width at a plurality of points at the same time with high accuracy.
Disclosure of Invention
In a first aspect, the present application provides a method for monitoring a lens bonding gap, comprising:
incident light is injected into the lens to be glued, and interference light formed by reflection of the upper surface and the lower surface of the gluing layer of the lens to be glued is received;
and acquiring the wavelength and the light intensity of the interference light, and calculating the distance between the bonding layers on the incidence point of the incident light according to the wavelength and the light intensity.
Further, the injecting the incident light into the lens to be glued further includes:
and through a change-over switch, the incident light vertically irradiates into different points on the upper surface of the bonding layer through different optical fibers.
Further, the interference light includes a first reflected light and a second reflected light;
the first reflected light is light reflected by the incident light on the upper surface, the second reflected light is light reflected by the incident light, the incident light passes through the upper surface and then is reflected by the lower surface, and the interference light is formed by mutual interference of the first reflected light and the second reflected light.
Further, the calculating the pitch of the glue layer at the incident point of the incident light includes:
according to the light intensity and the wavelength, a periodic function which is satisfied by the light intensity and the wave vector is obtained;
and carrying out Fourier transformation on the periodic function to obtain a frequency spectrum curve, and determining the spacing of the glue layers through the peak value of the frequency spectrum curve after transformation.
Further, when calculating the spacing of the glue layers, the method further includes:
if the data points in the periodic function are insufficient, adding the data points through interpolation operation before carrying out Fourier transformation.
Further, the periodic function expression of the light intensity and the wave vector is as follows:
I(k)＝I 1 2 +I 2 2 +2(I 1 2 *I 2 2 ) 1/2 cos(k*2h)
wherein I is the intensity of the interference light, I 1 For the intensity of the first reflected light, I 2 And k is the wave vector, and h is the interval between the bonding layers.
In a second aspect, the present application also provides a lens bonding gap monitoring device, comprising: a light source, a spectrometer, an optical fiber and a collimator;
the collimator is used for receiving the light emitted by the light source through the optical fiber and emitting the light into the lens to be glued after collimation;
the spectrometer is used for receiving interference light reflected by the upper surface and the lower surface of the lens gluing layer to be glued;
the spectrometer is also used for acquiring the wavelength and the light intensity of the interference light through the optical fiber, and calculating the distance between the bonding layers on the incidence point of the incident light according to the wavelength and the light intensity.
Further, the method further comprises the following steps: the optical fiber comprises two light splitting optical fibers;
the light splitting optical fiber comprises a plurality of light splitting optical paths which are respectively connected with the collimator, wherein a first light splitting optical fiber is used for connecting the light source with the collimator through the change-over switch, and a second light splitting optical fiber is connected with the spectrometer through the optical fiber connector;
the first light splitting optical fiber and the second light splitting optical fiber are Y-shaped light splitting optical fibers of 1*N, and N is more than or equal to 2 and less than or equal to 9.
In a second aspect, the present disclosure also provides a lens bonding gap monitoring device, comprising: the device comprises a light source, a spectrometer, two beam splitting optical fibers, a collimator, a change-over switch and an optical fiber connector;
the light source is connected with the change-over switch through a first light-splitting optical fiber, and the change-over switch is used for controlling the light-splitting optical path switch state of the first light-splitting optical fiber;
the first light splitting optical fiber comprises a plurality of light splitting optical paths which are respectively connected with the collimator and used for driving light into different measuring points;
the beam splitting optical path of the second beam splitting optical fiber is connected with the beam splitting optical path of the first beam splitting optical fiber through the collimator and is used for receiving reflected light from a measuring point;
the light splitting optical path of the second light splitting optical fiber is connected with the light connector, the light connector is connected with the spectrometer, and the spectrometer calculates the interval of the cementing layer by receiving light from the second light splitting optical fiber line.
Further, the two light splitting optical fibers are Y-shaped light splitting optical fibers of 1*N, and N is more than 2 and less than 9.
In a third aspect, the present application also provides a control terminal comprising a processor and a memory, the memory storing a computer program which, when run on the processor, performs any of the lens glue gap monitoring methods.
In a fourth aspect, the present application also provides a readable storage medium storing a computer program which, when run on a processor, performs any of the lens bonding gap monitoring methods.
The embodiment of the invention discloses a method and a device for monitoring a lens gluing gap, a control terminal and a storage medium, wherein the method comprises the following steps: incident light is injected into the lens to be glued, and interference light formed by reflection of the upper surface and the lower surface of the gluing layer of the lens to be glued is received; and acquiring the wavelength and the light intensity of the interference light, and calculating the distance between the bonding layers on the incidence point of the incident light according to the wavelength and the light intensity. The distance between the incident points is directly obtained through reflecting light, so that the whole measuring process is simple and quick, high requirements on measuring instruments are avoided, and the measuring cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are required for the embodiments will be briefly described, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope of the present invention. Like elements are numbered alike in the various figures.
Fig. 1 shows a schematic structural diagram of a lens bonding gap monitoring device according to an embodiment of the present application;
FIG. 2 shows a schematic view of a lens bonding gap monitoring device according to another embodiment of the present application;
FIG. 3 is a schematic flow chart of a method for monitoring a bonding gap of a lens according to an embodiment of the present application;
FIG. 4 is a schematic diagram of a principle of monitoring a bonding gap of a lens according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a spectral data processing procedure according to an embodiment of the present application;
fig. 6 shows a schematic diagram of a lens bonding gap monitoring measurement point according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
The terms "comprises," "comprising," "including," or any other variation thereof, are intended to cover a specific feature, number, step, operation, element, component, or combination of the foregoing, which may be used in various embodiments of the present invention, and are not intended to first exclude the presence of or increase the likelihood of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.
Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the invention belong. The terms (such as those defined in commonly used dictionaries) will be interpreted as having a meaning that is the same as the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in connection with the various embodiments of the invention.
The technical scheme of this application is applied to the measurement to lens veneer clearance, through driving into the light after the collimation to the veneer, receives the reflected light, carries out the analysis to the spectrum of reflected light, the quick interval that obtains the veneer. In addition, the distance between different parts is obtained by injecting light rays into different parts of the same lens so as to determine whether the lens is uniform or not, thereby improving the gluing quality of the lens.
As shown in fig. 1, the present application provides a lens gluing gap monitoring device, comprising: a light source 10, a spectrometer 20, an optical fiber 30 and a collimator 40.
The light source 10 is connected to the collimator 40 through the optical fiber 30, and the collimator 40 receives the light emitted from the light source 10 through the optical fiber 30 and emits the light into the lens 50 to be measured (also the lens to be glued) after collimation.
The spectrometer 20 is used for receiving interference light reflected by the upper surface and the lower surface of the lens gluing layer to be glued.
The spectrometer 20 is further configured to obtain a wavelength and a light intensity of the interference light through the optical fiber 30, and calculate a pitch of the glue layer on an incident point of the incident light according to the wavelength and the light intensity.
It will be appreciated that the monitoring device described above measures the pitch of the glue layer at the point of incidence by receiving interference light from the glue layer. To determine whether the lens glue layer is uniform, a plurality of spots need to be tested, and to be able to test a plurality of spots at the same time, a spectroscopic fiber may be used to split the incident light into a plurality of beams that are injected into the lens to be glued through the collimator 40 to measure the plurality of spots.
Fig. 2 is a schematic structural diagram of a device for monitoring a bonding gap of a lens according to the technical scheme of the present application.
The lens gluing gap monitoring device comprises: the optical system comprises a light source 10, a spectrometer 20, a first light splitting optical fiber 31, a second light splitting optical fiber 32, a collimator 40, a change-over switch 60 and an optical fiber connector 70.
The light source emits white light, which is transmitted through the first spectroscopic fiber 31, and collimated into straight light by the collimator 40, and then enters the lens 50 to be measured. The light of different branch optical fibers is injected into different positions of the lens 50 to be measured to measure the gap between two lenses at different positions in the lens 50 to be measured. The reflected light returns to the spectrometer 20 through the second light splitting fiber 32. The switch 60 is used for switching the switching state of the branch optical fiber under the first optical splitting fiber 31, so that only one branch optical fiber is working at the same time, and the optical fiber connector 70 is used for integrating the branch optical fiber of the second branch optical fiber 80 onto one optical fiber to form an optical path and transmit the optical path back to the spectrometer 20. By performing the switching operation on the switch 60, the distances between different positions of the lens 50 to be tested can be tested, so as to realize the testing of the flatness of the lens to be tested.
The first light splitting optical fiber 31 and the second light splitting optical fiber 32 have the same structure, and are all Y-shaped light splitting optical fibers of 1*N, namely, the Y-shaped light splitting optical fibers consist of a main optical fiber and a plurality of branch optical fibers, the number of the branch optical fibers determines the number of measurable point positions in one test, and the number of specific branch optical fibers can be specifically set according to the specification of a measuring lens or the measurement standard. In this application, the N may be greater than 2 and less than 9.
The method of the present application is described in the following with specific examples.
The number of the split optical paths split by the two split optical fibers arranged in the lens gluing gap monitoring device shown in fig. 2 determines how many points can be measured by one measurement, and the measurement mode of each point is the same, so that the technical scheme of the application is described by measuring one point.
As shown in fig. 3, the technical solution of the present application includes the following steps.
Step S100, incident light is injected into the lens to be glued, and interference light reflected by the upper surface and the lower surface of the gluing layer of the lens to be glued is received.
The detection mode of this application is the glue coating that is used for detecting waiting to glue the lens, and this glue coating has not carried out filling bonding yet, needs to detect whether the clearance between the lens is even again to glue. It will be appreciated that the upper surface of the adhesive layer is the lower surface of the upper lens and the lower surface of the adhesive layer is the upper surface of the lower lens.
First, white light is emitted from the light source 10, transmitted through the first spectroscopic optical fiber 31, and the changeover switch 60 controls the switching state of each of the branch optical fibers by a changeover operation. The switch 60 may enable all the branch optical fibers to transmit light, or enable one of the branch optical fibers to transmit light.
After passing through the collimator 40, the light is collimated into parallel light, which is then incident on the lens 50 to be measured. The incident angle of the light is perpendicular to the lens to be measured, so that the reflected light can return to the collimator 40 in the original path, and the second light splitting optical fiber 32 brings the reflected light back to the spectrometer 20.
Wherein the reflected light includes a first reflected light and a second reflected light.
As shown in fig. 4, the schematic diagram of the optical path of the light after entering the lens 50 to be measured is shown, in which the incident light is not incident at an angle of 90 degrees for convenience of explanation.
In the drawing, L1 is incident light, and the lens 50 to be measured is composed of an upper lens 61 and a lower lens 62, and a gap h exists between the two lenses, and when L1 is injected into the upper lens 61, transmission and refraction occur, so that a first reflected light L2 is generated. The first reflected light L2 is light reflected by the upper surface of the incident light L1. At the same time, the incident light L1 will also transmit through the upper lens 61, and the remaining part will reflect on the lower lens 62 to generate the second reflected light L3, so that it can be seen that L2 and L3 are actually two lights separated from the same beam, except for the optical path difference, the frequency and wavelength are the same, and the optical path difference is related to the spacing between the glue layers h, so that the spacing h can be calculated by the two reflected lights.
It will be appreciated that when L1 is normally incident, the reflected light L2 and L3 are located on the same beam path and returned to the collimator, and L2 and L3 interfere with each other to form reflected light, and the reflected light is analyzed to determine the pitch h.
The reflected light is collimated by the collimator, converted into parallel light, and then passed through the second spectroscopic fiber 32, and input to the spectrometer 20 through the fiber connector 70. It will be appreciated that the fiber optic connector 70 is used to integrate the individual branch fibers of the second optical splitter fiber 32 into a single main fiber, i.e., all of the light in the branch fibers is input to the main fiber for transmission.
In practical measurement, in order to prevent the influence of reflected light of other measurement points, only one point is measured in one measurement, that is, the single branch optical fiber is controlled to inject light into the collimator 40 through the above-mentioned switching light 30 so as to inject the light into the measurement point on the lens 50 to be measured, then the reflected light is obtained, and the reflected light is input into the spectrometer 20 through the second optical fiber 32 through the optical fiber connector 70, so as to complete measurement of one point. Then, the switch 60 switches other branch optical fibers to make the light irradiate different points in the lens 50 to be measured, and continues to measure other points until the distance between all the points is obtained.
Step 200, obtaining the wavelength and the light intensity of the interference light, and calculating the distance between the bonding layers on the incident point of the incident light according to the wavelength and the light intensity.
As shown in fig. 5, after receiving the reflected light, the spectrometer 20 may obtain the wavelength and the light intensity of the first reflected light and the second reflected light, thereby obtaining corresponding spectrum data.
In order to calculate the above-mentioned distance h, fourier transformation is required to be performed on the obtained spectrum data, and the curve with the abscissa being the wavelength and the ordinate being the light intensity is not a periodic function, so that coordinate transformation is required to convert the wavelength into a wave vector, and then a relational expression between the wave vector and the light intensity is calculated.
The relation is obtained:
I(k)＝I 1 2 +I 2 2 +2(I 1 2 I 2 2 ) 1/2 cos(k*2h)
wherein I is the intensity of the reflected light, I 1 For the intensity of the first reflected light, I 2 And k is the wave vector, and h is the interval between the bonding layers.
Where k=2pi/λ, λ is the wavelength, k is the wave vector, thus obtaining a periodic function related to k, which represents the propagation variation of the received light, since the reflected light is formed by mutual diffraction of the first reflected light and the second reflected light, a fourier transformation can be performed to perform a gap.
In theory, the waveform formed by the periodic function obtained after coordinate transformation should be smooth, however, because of systematic errors or other reasons, the reflected light obtained by the spectrometer has stray light, that is, noise points may exist on the waveform after the transformation, so that the data can be filtered to remove the noise points, and the data points without problems remain.
The specific filtering process can be a filtering mode such as mean filtering or Kalman filtering.
After filtering, if the number of the remaining data points is too small, the data points can be inserted in an interpolation mode to enrich the data, so that the subsequent calculation is convenient. Specific interpolation algorithms may be a neighbor interpolation algorithm, bicubic interpolation, bilinear interpolation, etc.
Then, fourier transform is performed on the above relation, and after discrete fourier transform, an expression is obtained:
Figure BDA0003840337040000101
wherein I (k) is the Fourier transform of the light intensity, N is the total data amount, e is the natural logarithm, x is the data number, and I is the complex number.
N is the upper limit of the amount of spectral data accepted and x represents the number from the first spectral data to the nth spectral data.
After Fourier change, converting the abscissa of the I (k) curve into length, namely converting k into wavelength, obtaining the I (lambda) curve, and obtaining the maximum value of the curve, wherein the abscissa of the maximum value of the curve is the distance h between the measurement points. Thereby, a pitch in one measuring point in one lens is obtained.
It can be understood that after the measurement is completed, the measurement of the next point location can be performed, in the whole measurement process, the lens gaps on different point locations of the lens can be measured only by switching the switch, the lens gaps of a plurality of point locations are synthesized, whether the two lenses are uniform or not can be obtained through analysis, if the two lenses are non-uniform, the adjustment can be performed according to the gaps of the point locations, and if the two lenses are uniform, the gluing can be performed.
As shown in fig. 6, the black dots represent measurement points on the lens, and for example, at most 9 measurement points may be arranged in a zigzag manner on the lens, and if 8 points are arranged, the measurement points may be arranged in two columns, and 4 points in each column. Also, the arrangement may be irregular so as to measure the gap of each portion of the lenses as much as possible, so as to show whether the spacing between the lenses is uniform as much as possible.
The embodiment of the invention discloses a lens bonding gap monitoring method, which comprises the steps of injecting incident light into the upper surface of a bonding layer and receiving reflected light from the bonding layer; and acquiring the wavelength and the light intensity of the interference light, and calculating the distance between the bonding layers on the incident point of the incident light according to the wavelength and the light intensity. Through to the reflected light, directly acquire the interval of incident point for whole measurement process is simple swift, does not also have very high requirement to measuring instrument, has reduced measuring cost, and in the measurement process, need not to know the specific face type of lens, any inter-lens distance can all be measured, and no complicated automation equipment, through change over switch control, just can obtain the measurement data of a plurality of positions, and measurement point position can custom adjustment position and quantity, a plurality of positions also need not remove the lens in the same time, avoided systematic error, shortened test time, improved production efficiency.
The application also provides a control terminal comprising a processor and a memory, the memory storing a computer program which, when run on the processor, performs any of the methods of monitoring a lens glue gap.
The present application also provides a readable storage medium storing a computer program which, when run on a processor, performs any of the lens bonding gap monitoring methods described in any of the preceding claims.
In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners as well. The apparatus embodiments described above are merely illustrative, for example, of the flow diagrams and block diagrams in the figures, which illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional modules or units in various embodiments of the invention may be integrated together to form a single part, or the modules may exist alone, or two or more modules may be integrated to form a single part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a smart phone, a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention.

Claims (10)

1. A method for monitoring a lens bonding gap, comprising:
incident light is injected into the lens to be glued, and interference light formed by reflection of the upper surface and the lower surface of the gluing layer of the lens to be glued is received;
and acquiring the wavelength and the light intensity of the interference light, and calculating the distance between the bonding layers on the incidence point of the incident light according to the wavelength and the light intensity.
2. The method of claim 1, wherein the injecting incident light into the lens to be glued comprises:
and through a change-over switch, the incident light vertically irradiates into different points on the upper surface of the bonding layer through different optical fibers.
3. The lens bonding gap monitoring method according to claim 1, wherein the interference light includes a first reflected light and a second reflected light;
the first reflected light is light reflected by the incident light on the upper surface, the second reflected light is light reflected by the incident light through the upper surface and then reflected by the lower surface, and the interference light is formed by mutual interference of the first reflected light and the second reflected light.
4. The method of claim 1, wherein the calculating the pitch of the glue layer at the point of incidence of the incident light comprises:
according to the light intensity and the wavelength, a periodic function which is satisfied by the light intensity and the wave vector is obtained;
and carrying out Fourier transformation on the periodic function to obtain a frequency spectrum curve, and determining the spacing of the glue layers through the peak value of the frequency spectrum curve after transformation.
5. The method for monitoring a lens bonding gap according to claim 4, wherein the calculating the pitch of the bonding layer further comprises:
if the data points in the periodic function are insufficient, adding the data points through interpolation operation before carrying out Fourier transformation.
6. A method of monitoring a lens bonding gap according to claim 3 wherein the periodic functional expression of the light intensity and wave vector is:
I(k)＝I 1 2 +I 2 2 +2(I 1 2 *I 2 2 ) 1/2 cos(k*2h)
wherein I is the intensity of the interference light, I 1 For the intensity of the first reflected light, I 2 And k is the wave vector, and h is the interval between the bonding layers.
7. A lens bonding gap monitoring device, comprising: a light source, a spectrometer, an optical fiber and a collimator;
the collimator is used for receiving the light emitted by the light source through the optical fiber and emitting the light into the lens to be glued after collimation;
the spectrometer is used for receiving interference light reflected by the upper surface and the lower surface of the lens gluing layer to be glued;
the spectrometer is also used for acquiring the wavelength and the light intensity of the interference light through the optical fiber, and calculating the distance between the bonding layers on the incidence point of the incident light according to the wavelength and the light intensity.
8. The lens glue gap monitoring device of claim 7, further comprising: the optical fiber comprises two light splitting optical fibers;
the light splitting optical fiber comprises a plurality of light splitting optical paths which are respectively connected with the collimator, wherein a first light splitting optical fiber is used for connecting the light source with the collimator through the change-over switch, and a second light splitting optical fiber is connected with the spectrometer through the optical fiber connector;
the first light splitting optical fiber and the second light splitting optical fiber are Y-shaped light splitting optical fibers of 1*N, and N is more than or equal to 2 and less than or equal to 9.
9. A control terminal comprising a processor and a memory, the memory storing a computer program which, when run on the processor, performs the lens bonding gap monitoring method of any one of claims 1 to 6.
10. A readable storage medium, characterized in that it stores a computer program which, when run on a processor, performs the lens gluing gap monitoring method of any one of claims 1 to 6.
CN202211103475.4A 2022-09-09 2022-09-09 Lens gluing gap monitoring method and device, control terminal and storage medium Pending CN116045831A (en)

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