CN110095264B - Prism gluing detection method, detection device and computer readable storage medium - Google Patents
Prism gluing detection method, detection device and computer readable storage medium Download PDFInfo
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- CN110095264B CN110095264B CN201910382970.5A CN201910382970A CN110095264B CN 110095264 B CN110095264 B CN 110095264B CN 201910382970 A CN201910382970 A CN 201910382970A CN 110095264 B CN110095264 B CN 110095264B
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Abstract
The application discloses a prism gluing detection method, a detection device and a computer readable storage medium, wherein the prism gluing detection method is applied to the detection device included in a detection system, and comprises the following steps: calibrating a first acquisition unit and a second acquisition unit; controlling a laser to emit a first incident light ray, wherein the first incident light ray is separated into a first light ray and a second light ray after passing through a second prism; acquiring a first section difference value and a second section difference value of the first prism and the second prism; and determining the gluing state of the first prism and the second prism according to the first section difference value and the second section difference value. The application provides a prism gluing detection method, a detection device and a computer readable storage medium, and aims to solve the problems that in the prior art, the gluing state of a prism needs to be detected after gluing is completed, the gluing quality of the prism cannot be accurately monitored, and the yield of prism gluing is affected.
Description
Technical Field
The present disclosure relates to the field of optical inspection technologies, and in particular, to a prism gluing inspection method, an inspection apparatus, and a computer-readable storage medium.
Background
The prism is one of the commonly used optical devices in an optical system, and the beam splitting prism realizes the beam splitting function of the prism through the gluing of the two prisms and the film layer of the gluing surface. The prisms may form a step difference during assembly due to surface errors between the two prisms. For the segment difference detection of the prism gluing surface, the detection is usually performed in a sampling inspection mode after the prism gluing is completed, and the detection mode cannot realize accurate monitoring on the prism gluing quality, so that the yield of the prism gluing is influenced.
Disclosure of Invention
The application provides a prism gluing detection method, a detection device and a computer readable storage medium, and aims to solve the problems that in the prior art, the gluing state of a prism needs to be detected after gluing is completed, the gluing quality of the prism cannot be accurately monitored, and the yield of prism gluing is affected.
The application provides a prism gluing detection method, which is characterized in that the prism gluing detection method is applied to a detection device included in a detection system, the detection device comprises a laser and a collection unit, and the collection unit comprises a first collection unit and a second collection unit; the detection system further comprises a prism, wherein the prism comprises a first prism and a second prism; a beam splitter is arranged on the surface of one side, away from the laser, of the second prism;
the prism gluing detection method comprises the following steps:
calibrating the first acquisition unit and the second acquisition unit;
controlling the laser to emit a first incident light ray, wherein the first incident light ray is separated into a first light ray and a second light ray after passing through the surface of one side, far away from the laser, of the second prism;
acquiring a first light spot coordinate value of the first light ray on the first acquisition unit and a second light spot coordinate value of the second light ray on the second acquisition unit;
determining a first section difference value according to the first light spot coordinate value, and determining a second section difference value according to the second light spot coordinate value;
and determining the gluing state of the first prism and the second prism according to the first section difference value and the second section difference value.
Optionally, the detection apparatus further includes a first standard and a second standard, and the calibrating the first acquisition unit and the second acquisition unit includes:
calibrating the first acquisition unit through a first standard component;
calibrating the second acquisition unit with a second standard.
Optionally, the calibrating the first acquisition unit by a first standard includes:
controlling the laser to emit a second incident light;
and adjusting the position of the first acquisition unit to enable the second incident light to be positioned at the center of the first acquisition unit at a first acquisition light spot position formed by the second incident light in the first acquisition unit after the second incident light is reflected by the first standard component.
Optionally, the calibrating the second acquisition unit by a second standard includes:
controlling the laser to emit a third incident ray;
and adjusting the position of the second acquisition unit to ensure that the position of a second acquisition light spot formed by the third incident light in the second acquisition unit is positioned at the center of the second acquisition unit after the third incident light is transmitted or reflected by the second standard component.
Optionally, the acquiring a first light spot coordinate value of the first light ray on the first acquisition unit and a second light spot coordinate value of the second light ray on the second acquisition unit includes:
establishing a first coordinate system in the first acquisition unit;
determining a first light spot coordinate value of the first light ray on the first coordinate system;
establishing a second coordinate system on the second acquisition unit, wherein the coordinate axis direction of the first coordinate system is the same as the coordinate axis direction of the second coordinate system;
and determining a second light spot coordinate value of the second light ray on the second coordinate system.
Optionally, the determining the gluing state of the first prism and the second prism according to the first segment difference value and the second segment difference value includes:
when the difference value of the first section is larger than a first preset value or the difference value of the second section is larger than a second preset value, adjusting the relative position of the first prism and the second prism;
and when the difference value of the first section is smaller than or equal to a first preset value and the difference value of the second section is smaller than or equal to a second preset value, the gluing detection of the first prism and the second prism is finished.
Optionally, when the first section difference is greater than a first preset value or the second section difference is greater than a second preset value, adjusting the relative position of the first prism and the second prism includes:
when the first section difference value is larger than a first preset value, adjusting the distance between the first prism and the second prism along a first direction;
and when the second section difference value is larger than the second preset value, adjusting the distance between the first prism and the second prism along a second direction, wherein the first direction is vertical to the second direction.
In order to achieve the above object, the present application provides a prism gluing detection device, which is a detection device applied to a detection system, the prism gluing detection device includes a laser, a collection unit and a controller, the detection system further includes a prism, the prism includes a first prism and a second prism, the first prism is disposed on one side of the second prism away from the laser, and the collection unit includes a first collection unit and a second collection unit; the first acquisition unit and the second acquisition unit are respectively arranged at two sides of the second prism; a beam splitter is arranged on the surface of one side, away from the laser, of the second prism;
the controller is used for executing the prism gluing detection method according to any one of the above embodiments to perform prism gluing detection.
Optionally, the prism gluing detection device further comprises a first standard and a second standard, the first standard is used for calibrating the first acquisition unit, and the second standard is used for calibrating the second acquisition unit.
To achieve the above object, the present application proposes a computer-readable storage medium, which includes a processor, a memory, and a computer program stored on the memory and executable on the processor, and when executed by the processor, the computer program further implements the steps of the prism gluing detection method according to any one of the above embodiments.
In the technical scheme provided by the application, the prism gluing detection method is applied to a detection device included in a detection system, the detection device comprises a laser and a collection unit, the collection unit comprises a first collection unit and a second collection unit, the detection system further comprises a prism, and the prism comprises a first prism and a second prism; after the first acquisition unit and the second acquisition unit are calibrated, the laser emits a first incident ray to the prism, the first incident light ray is separated into a first light ray and a second light ray after passing through one side surface of the second prism far away from the laser, wherein the first light ray is emitted to the first acquisition unit, the second light ray is emitted to the second acquisition unit, confirming the gluing state of the first prism and the second prism by determining the light spot position of the first light on the first acquisition unit and the light spot position of the second light on the second acquisition unit, therefore, the problems that in the prior art, the gluing state of the prism needs to be detected after the gluing is finished, the gluing quality of the prism cannot be accurately monitored, and the yield of prism gluing is affected are solved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of a prism gluing detection device according to the present invention;
FIG. 2 is a side view of the optical path of the prism gluing detection device of the present invention;
FIG. 3 is a schematic structural diagram of a first collecting unit according to the present invention;
FIG. 4 is a schematic flow chart illustrating an embodiment of a prism gluing detection method according to the present invention;
FIG. 5 is a schematic flow chart illustrating a prism gluing detection method according to another embodiment of the present invention;
FIG. 6 is a schematic flow chart illustrating a prism gluing detection method according to another embodiment of the present invention;
FIG. 7 is a schematic flow chart illustrating a prism gluing detection method according to another embodiment of the present invention.
The reference numbers indicate:
| reference numerals | Name (R) | Reference numerals | Name(s) |
| 10 | Prism | 30 | |
| 11 | |
31 | |
| 12 | |
32 | Second |
| 20 | Laser device |
The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
It should be noted that all directional indications (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are only used to explain the relative position relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.
In addition, descriptions in this application as to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and thus, for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In addition, technical solutions between the various embodiments of the present application may be combined with each other, but it must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should be considered to be absent and not within the protection scope of the present application.
The application provides a prism gluing detection method, a detection device and a computer readable storage medium.
Referring to fig. 1 to 4, the prism gluing detection method is applied to a detection device included in a detection system, the detection device includes a laser 20 and a collection unit 30, and the collection unit 30 includes a first collection unit 31 and a second collection unit 32; the detection system further comprises a prism 10, wherein the prism 10 comprises a first prism 11 and a second prism 12; a beam splitter is arranged on the surface of one side, far away from the laser, of the second prism;
the prism gluing detection method comprises the following steps:
s100, calibrating the first acquisition unit 31 and the second acquisition unit 32;
the first collecting unit 31 and the second collecting unit 32 are both configured to collect a first incident light emitted by the laser 20, the first incident light irradiates on the first collecting unit 31 and the second collecting unit 32 to form a light spot, and the relative positions of the light spots on the first collecting unit 31 and the second collecting unit 32 can be determined to adjust the positions of the first collecting unit 31 and the second collecting unit 32, in a preferred embodiment, the first collecting unit 31 and the second collecting unit 32 are both Charge-coupled Device (CCD) image sensors, so that the relative position of the light spot on the CCD image sensor can be determined by obtaining the incident light.
S200, controlling the laser 20 to emit a first incident light, wherein the first incident light is separated into a first light (not marked) and a second light (not marked) after passing through the surface of one side of the second prism 12 away from the laser 20;
the surface of one side of the second prism 1, which is far away from the laser 20, is provided with a light splitter, the light splitting film is used for splitting light emitted by the laser 20, wherein a reflected part of the light is emitted to the first collection unit 31, and a transmitted part of the light is emitted to the second collection unit 32 after being reflected twice in the first prism 11. Preferably, a reflector is disposed on a side surface of the first prism 11 away from the second prism 12, and after the transmitted part of the light enters the first prism 11, the transmitted part of the light is reflected by the reflective film on a side surface of the first prism 11 away from the second prism 12, returns to a side surface of the first prism 11 close to the second prism 12, is reflected again, and is emitted to the second collecting unit 32.
S300, acquiring a first light spot coordinate value of the first light ray on the first collecting unit 31 and a second light spot coordinate value of the second light ray on the second collecting unit 32;
the central point of the receiving range of the first collecting unit 31 is set as a far point of a first coordinate system, and the coordinate value of the first light spot is the coordinate position of the light spot on the first coordinate system.
Wherein, the central point of the receiving range of the second collecting unit 32 is set as the far point of the second coordinate system, and the second light spot coordinate value is the coordinate position of the light spot on the second coordinate system
S400, determining a first section difference value according to the first light spot coordinate value and determining a second section difference value according to the second light spot coordinate value;
the segment difference value is a matching deviation caused by a processing precision deviation when the first prism 11 and the second prism 12 are arranged in a gluing mode, the first segment difference value represents a segment difference value of the first prism 11 and the second prism 12 in a first direction, the second segment difference value represents a segment difference value of the first prism 11 and the second prism 12 in a second direction, the first direction and the second direction are perpendicular to each other, the first direction is parallel to the first incident light direction of the laser 20, and the second direction is perpendicular to the first incident light emitted by the laser 20 and perpendicular to the reflected part of light.
And S500, determining the gluing state of the first prism 11 and the second prism 12 according to the first section difference value and the second section difference value.
In the technical scheme provided by the application, the prism gluing detection method is applied to a detection device included in a detection system, the detection device comprises a laser 20 and a collection unit 30, the collection unit 30 comprises a first collection unit 31 and a second collection unit 32, the detection system further comprises a prism 10, and the prism 10 comprises a first prism 11 and a second prism 12; after the calibration of the first collection unit 31 and the second collection unit 32 is completed, the laser 20 emits a first incident light to the prism 10, the first incident light ray is separated into a first ray and a second ray after passing through a side surface of the second prism 12 away from the laser 20, wherein the first light ray is emitted to the first collecting unit 31, the second light ray is emitted to the second collecting unit 32, confirming the gluing state of the first prism 11 and the second prism 12 by determining the spot position of the first light on the first collection unit 31 and the spot position of the second light on the second collection unit 32, therefore, the problems that in the prior art, the gluing state of the prism 10 needs to be detected after the gluing is finished, the gluing quality of the prism 10 cannot be accurately monitored, and the gluing yield of the prism 10 is affected are solved.
In a preferred embodiment, the beam splitter is a beam splitting film, and the beam splitting film is disposed on a surface of the second prism 12 on a side away from the laser 20 by way of plating or attaching, specifically, the beam splitting film is a transflective film, and a ratio of transmittance to reflectance of the transflective film is 1:1, it is understood that a beam splitting ratio of the beam splitter is not limited thereto, and in other embodiments, a ratio of transmittance to reflectance of the beam splitter may be 4:6 or 3: 7. It is also understood that the beam splitter may also be a beam splitting element disposed on a side surface of the second prism 12 away from the laser 20, and the beam splitting element may be a beam splitter or other optical element capable of splitting light.
Referring to fig. 5, in some optional embodiments, the detection apparatus further includes a first standard component (not shown) and a second standard component (not shown), and the step S100 includes:
s110, calibrating the first acquisition unit 31 through a first standard component;
s120, calibrating the second acquisition unit 32 by using a second standard.
The first standard component is a standard sample used for calibrating the first collection unit 31, and by adjusting the position of the first collection unit 31, the position of the optical plate formed on the first collection unit 31 by the light emitted by the laser 20 is located at the center of the first collection unit 31. The second standard is a standard sample for calibrating the second collection unit 32, and by adjusting the position of the second collection unit 32, the position of the light plate formed on the second collection unit 32 by the light emitted from the laser 20 is located at the center of the second collection unit 32.
In a specific embodiment, the step S110 includes:
controlling the laser 20 to emit a second incident light;
the position of the first collecting unit 31 is adjusted, so that after the second incident light is reflected by the first standard component, the position of a first collecting light spot formed by the second incident light in the first collecting unit 31 is located at the center of the first collecting unit 31.
In some alternative embodiments, the first standard component is placed on an extension line of the second incident light of the laser 20, the second incident light is reflected after being transmitted to the first standard component and received by the first acquisition unit 31, and the light reflected by the first standard component is projected to a central position of the first acquisition unit 31 through the first standard component, so that the calibration of the first acquisition unit 31 is completed.
In a specific embodiment, the step S110 further includes:
controlling the laser 20 to emit a third incident light;
and adjusting the position of the second acquisition unit 32, so that after the third incident light is transmitted or reflected by the second standard component, the position of a second acquisition light spot formed by the third incident light in the second acquisition unit 32 is located at the center of the second acquisition unit 32.
In some alternative embodiments, the second standard is placed on the extension of the third incident ray of the laser 20. Specifically, the third incident light passes through the bonding surface of the second standard, is reflected by a side surface of the second standard, which is far away from the laser 20, returns to a side surface of the first prism 11, which is close to the second prism 12, is reflected again, and then exits the second standard, and is received by the second collecting unit 32, and by adjusting the position of the second collecting unit 32, the light exiting from the second standard is projected to the central position of the second collecting unit 32, so that the calibration of the second collecting unit 32 is completed. It is understood that, in another embodiment, the third incident light is reflected by the second standard component and then received by the second collecting unit 32, and the position of the second collecting unit 32 is adjusted, so that the light reflected by the second standard component is projected to the central position of the second collecting unit 32.
Referring to fig. 6, in some optional embodiments, the step S300 includes:
s310, establishing a first coordinate system in the first acquisition unit 31;
s320, determining a first light spot coordinate value of the first light ray on the first coordinate system;
the first coordinate system includes the first direction and the second direction, the first direction is parallel to the emitting light direction of the laser 20, and the second direction is perpendicular to the light emitted by the laser 20 and perpendicular to the reflected portion of the light. When the laser spot is projected on the first collecting unit 31, the central position of the first collecting unit 31 is used as the origin of the first coordinate system, and the first direction and the second direction are respectively used as the X axis and the Y axis of the first coordinate system, so as to determine the first spot coordinate value of the first light ray on the first coordinate system.
S330, establishing a second coordinate system in the second acquiring unit 32, where the coordinate system of the first acquiring unit 31 and the coordinate system of the second acquiring unit 32 have the same direction;
s340, determining a second spot coordinate value of the second light ray on the second coordinate system.
Specifically, the directions of the X axis and the Y axis of the second coordinate system are the same, so that the second spot coordinate values of the second light ray on the second coordinate system can be determined in the same manner.
Referring to fig. 1 to fig. 3 and fig. 7, in some alternative embodiments, the step S500 includes:
s510, when the difference value of the first section is larger than a first preset value or the difference value of the second section is larger than a second preset value, adjusting the relative position of the first prism 11 and the second prism 12;
s520, when the difference value of the first section is smaller than or equal to a first preset value and the difference value of the second section is smaller than or equal to a second preset value, the gluing detection of the first prism 11 and the second prism 12 is completed.
The first segment difference value is used to represent a segment difference between the first prism 11 and the second prism 12 along a first direction, and the second segment difference value is used to represent a segment difference between the first prism 11 and the second prism 12 along a second direction.
In a specific manner, the first spot coordinate value can be decomposed into a first spot abscissa a1 and a first spot ordinate b1 along the X-axis and the Y-axis, and then the first segment difference value L1 can be expressed as
L1＝(a1^2+b1^2)^0.5；
The second spot coordinate value can be decomposed into a second spot abscissa a2 and a second spot ordinate b2 along the X-axis and the Y-axis, and then the second segment difference value L2 can be expressed as
L2＝(a2^2+b2^2)^0.5。
In a preferred embodiment, since the first step difference value is mainly related to the first spot ordinate b1 in the first direction, the first step difference value is approximately equal to the first spot ordinate b 1. The second segment difference value is primarily associated with a second spot abscissa a2 in the first direction, the first segment difference value being approximately equal to the second spot ordinate a 2.
In some optional embodiments, the step S510 includes:
when the first section difference value is larger than a first preset value, adjusting the distance between the first prism 11 and the second prism 12 along the first direction;
and when the second section difference value is larger than the second preset value, adjusting the distance between the first prism 11 and the second prism 12 along the second direction, wherein the first direction is perpendicular to the second direction.
In a specific embodiment, when the first preset value is 7.175mm, the second preset value is 7.175mm, L1 is 10mm, and L2 is 5mm, the L1 is greater than the first preset value, and the L2 is smaller than the second preset value, then the first prism 11 and the second prism 12 do not satisfy the gluing requirement in the first direction, and the gluing requirement in the second direction is satisfied, so that the first prism 11 and the second prism 12 need to be adjusted in the first direction.
When the first preset value is 7.175mm, the second preset value is 7.175mm, L1 is 4mm, and L2 is 3mm, the L1 is greater than the first preset value, and the L2 is smaller than the second preset value, then the first prism 11 and the second prism 12 meet the gluing requirement in the first direction, and meet the gluing requirement in the second direction, so the first prism 11 and the second prism 12 meet the gluing requirement in both the first direction and the second direction.
Referring to fig. 1 to fig. 3, in order to implement and realize the above-mentioned prism gluing detection method, the present application further provides a prism gluing detection device, where the prism gluing detection device includes a laser 20, an acquisition unit 30, and a controller, the detection system further includes a prism 10, the prism 10 includes a first prism 11 and a second prism 12, and a surface of one side of the second prism 12, which is far away from the laser 20, is provided with a beam splitter; the acquisition unit 30 comprises a first acquisition unit 31 and a second acquisition unit 32;
specifically, the first prism 11 is disposed on one side of the second prism 12 away from the laser 20, and the first collecting unit 31 and the second collecting unit 32 are disposed on two sides of the second prism 12 respectively; the light emitted by the laser 20 enters the second prism 12 from the side surface of the second prism 12 close to the laser 20, and is transmitted and reflected by the spectroscopic film at the same time on the side surface of the second prism 12 away from the laser 20, part of the reflected light is reflected to the first collection unit 31, part of the transmitted light enters the first prism 11 and is reflected by the reflective film on the side surface of the first prism 11 away from the second prism 12, and the light reflected by the reflective film is reflected again on the side surface of the first prism 11 close to the second prism 12 and then exits the first prism 11 and is emitted to the second collection unit 32.
The controller is in communication connection with the first acquisition unit 31 and the second acquisition unit 32, determines a first light spot coordinate value through the first acquisition unit 31, determines a second light spot coordinate value through the second acquisition unit 32, and calculates a first section difference value and a second section difference value to judge the gluing state of the first prism 11 and the second prism 12.
In some optional embodiments, the prism gluing detection apparatus further comprises a first standard for calibrating the first collecting unit 31 and a second standard for calibrating the second collecting unit 32.
In order to implement and realize the prism gluing detection method, the present application further proposes a computer-readable storage medium, which includes a processor, a memory, and a computer program stored in the memory and executable on the processor, and when being executed by the processor, the computer program further realizes the steps of the prism gluing detection method according to any one of the above embodiments.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all modifications and equivalents of the technical solutions that can be directly or indirectly applied to other related fields without departing from the spirit of the present application are intended to be included in the scope of the present application.
Claims (8)
1. The prism gluing detection method is characterized by being applied to a detection device included in a detection system, wherein the detection device comprises a laser and an acquisition unit, and the acquisition unit comprises a first acquisition unit and a second acquisition unit; the detection system further comprises a prism, wherein the prism comprises a first prism and a second prism; a beam splitter is arranged on the surface of one side, away from the laser, of the second prism;
the prism gluing detection method comprises the following steps:
calibrating the first acquisition unit and the second acquisition unit;
the laser is controlled to emit first incident light, the first incident light is separated into first light and second light after passing through the surface of one side, far away from the laser, of the second prism, the reflected first light is emitted to the first acquisition unit, and the transmitted second light is emitted to the second acquisition unit after being reflected twice in the first prism;
acquiring a first light spot coordinate value of the first light ray on the first acquisition unit and a second light spot coordinate value of the second light ray on the second acquisition unit;
determining a first section difference value according to the first light spot coordinate value, and determining a second section difference value according to the second light spot coordinate value, wherein the first section difference value represents a section difference value of the first prism and the second prism along a first direction, the second section difference value represents a section difference value of the first prism and the second prism along a second direction, the first direction and the second direction are mutually vertical, the first direction is parallel to the first incident light direction of the laser, and the second direction is perpendicular to the first incident light emitted by the laser and is perpendicular to the first light;
when the difference value of the first section is larger than a first preset value or the difference value of the second section is larger than a second preset value, adjusting the relative position of the first prism and the second prism;
when the first section difference value is smaller than or equal to a first preset value and the second section difference value is smaller than or equal to a second preset value, the gluing detection of the first prism and the second prism is finished;
wherein, the obtaining a first light spot coordinate value of the first light ray on the first acquisition unit and a second light spot coordinate value of the second light ray on the second acquisition unit includes:
establishing a first coordinate system in the first acquisition unit;
determining a first light spot coordinate value of the first light ray on the first coordinate system;
establishing a second coordinate system on the second acquisition unit, wherein the coordinate axis direction of the first coordinate system is the same as the coordinate axis direction of the second coordinate system;
and determining a second light spot coordinate value of the second light ray on the second coordinate system.
2. The prism gluing detection method of claim 1, wherein the detection device further comprises a first standard and a second standard, and the calibrating the first and second acquisition units comprises:
calibrating the first acquisition unit by the first standard;
and calibrating the second acquisition unit through the second standard component.
3. The prism gluing detection method of claim 2, wherein the calibrating the first acquisition unit with the first standard comprises:
controlling the laser to emit a second incident light;
and adjusting the position of the first acquisition unit to enable a first acquisition light spot formed by the second incident light in the first acquisition unit to be positioned in the center of the first acquisition unit after the second incident light is reflected by the first standard component.
4. The prism gluing detection method of claim 2, wherein the calibrating the second collection unit with the second standard comprises:
controlling the laser to emit a third incident ray;
and adjusting the position of the second acquisition unit to enable a second acquisition light spot formed by the third incident light in the second acquisition unit to be positioned at the center of the second acquisition unit after the third incident light is transmitted or reflected by the second standard component.
5. The method for inspecting prism gluing according to claim 1, wherein the adjusting the relative position of the first prism and the second prism when the first step difference value is greater than a first predetermined value or the second step difference value is greater than a second predetermined value comprises:
when the first section difference value is larger than a first preset value, adjusting the distance between the first prism and the second prism along a first direction;
and when the second section difference value is larger than the second preset value, adjusting the distance between the first prism and the second prism along a second direction.
6. The prism gluing detection device is characterized by being applied to a detection device included in a detection system, the prism gluing detection device comprises a laser, an acquisition unit and a controller, the detection system further comprises a prism, the prism comprises a first prism and a second prism, the first prism is arranged on one side, away from the laser, of the second prism, and the acquisition unit comprises a first acquisition unit and a second acquisition unit; the first collecting unit and the second collecting unit are respectively arranged at two sides of the second prism; a beam splitter is arranged on the surface of one side, away from the laser, of the second prism;
the controller is used for executing the prism gluing detection method according to any one of claims 1 to 5 to carry out prism gluing detection.
7. The prism gluing detection device of claim 6, further comprising a first standard for calibrating the first acquisition unit and a second standard for calibrating the second acquisition unit.
8. A computer-readable storage medium, comprising a processor, a memory, and a computer program stored on the memory and run on the processor, the computer program, when executed by the processor, further implementing the steps of the prism glue detection method according to any one of claims 1-5.
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