Light guide rod processing method based on optical cement

Abstract

The invention relates to the technical field of optical part processing, and provides a light guide rod processing method based on optical cement, which comprises the following steps: processing a first side surface and a second side surface to a first surface shape parameter, and applying optical cement on the first side surface and the second side surface to a first matching disc; optical cement is conducted on the first distribution plate on the leaning body, a third side face, a fourth side face and the first distribution plate are machined till the first surface shape parameter is achieved and are flush with the first distribution plate, and optical cement is conducted on the third side face and the fourth side face to form a second distribution plate; the first end face, the second end face, the first matching disc and the second matching disc are machined, so that the first end face and the second end face are machined to the second surface shape parameter and are flush with the first matching disc and the second matching disc, and the first end face and the second end face are coated with films; and dismantling the second matching disc and the first matching disc to obtain the light guide rod. The first matching disc and the second matching disc can participate in subsequent grinding and polishing, the edge breakage risk of the edges of the side faces and the edges of the end faces can be greatly reduced, the vertical precision of the light guide rods at the edge positions is improved, and the product yield is greatly improved.

Description

Technical Field

[0001] The present application relates to the technical field of optical parts processing, and more specifically, to a method for processing an optical guide rod based on optical glue. Background Art

[0002] Many optical parts in optical equipment require special processing due to their material, size, processing accuracy requirements, etc. For example, the shape of the light guide rod part is similar to a cuboid, with the length direction being much greater than the width and height directions, and each face is a plane. All 12 edges of the light guide rod part are required to be non-chamfered, and adjacent faces have verticality requirements.

[0003] For high-precision optical rod parts, there are strict size and quantity requirements for edge chipping during processing, and traditional processing technology is difficult to meet the requirements.

[0004] Therefore, the existing technology still needs to be improved and developed. Summary of the invention

[0005] The purpose of the present application is to propose a method for processing a light guide rod based on optical glue, so as to solve the technical problem in the prior art that the light guide rod is prone to edge breakage during processing.

[0006] To achieve the above purpose, the technical solution adopted in this application is: to provide a method for processing a light guide rod based on optical glue, comprising:

[0007] Providing an optical blank, a first matching plate, a second matching plate and a support body;

[0008] The optical blank is subjected to surface processing to form a first part of a rectangular parallelepiped structure, wherein the first part comprises: a first side surface and a second side surface which are opposite to each other, a third side surface and a fourth side surface which are perpendicular to the first side surface and opposite to each other, and a first end surface and a second end surface which are opposite to each other and are located at both ends of the first side surface, the second side surface, the third side surface and the fourth side surface;

[0009] Processing the first side surface and the second side surface to a first surface shape parameter, applying the first optical adhesive plate to the first side surface and the second side surface, so that the first optical adhesive plate covers the first side surface and the second side surface, thereby forming a first optical adhesive combination body;

[0010] Optically glue the first plate of the first optical glue combination onto the support body, process the third side surface, the fourth side surface and the first plate, so that the third side surface and the fourth side surface are processed to the first surface shape parameter and are flush with the first plate, and optically glue the second plate onto the third side surface and the fourth side surface so that the second plate covers the third side surface, the fourth side surface and the first plate, thereby forming a second optical glue combination;

[0011] Processing the first end face, the second end face, and the first and second matching discs, so that the first end face and the second end face are processed to a second surface shape parameter and are flush with the first and second matching discs;

[0012] Coating the first end surface and the second end surface to form a third optical-plastic combination body;

[0013] Removing the second matching plate on the third optical-plastic combination body;

[0014] The first matching disk on the third optical-plastic combination is removed to obtain a light guiding rod.

[0015] Furthermore, the first matching plate and the second matching plate are made of the same material as the optical blank.

[0016] Furthermore, the first surface shape parameter and the second surface shape parameter include any one of a smoothness parameter, a surface shape parameter, and a parallelism parameter, or a combination thereof, and the accuracy of the first surface shape parameter is lower than the accuracy of the second surface shape parameter.

[0017] In some embodiments, the first and second trays are provided with photo-bonding surfaces for photo-bonding the first part. Before photo-bonding the first and second trays to the first part, the photo-bonding surfaces are processed to third surface parameters, and the accuracy of the third surface parameters is not lower than the accuracy of the first surface parameters.

[0018] Furthermore, each surface of the first part has a layer to be processed with a preset thickness reserved, and when the first side surface, the second side surface, the third side surface and the fourth side surface are processed to the first surface shape parameter, and the first end face and the second end face are processed to the second surface shape parameter, the layer to be processed is removed.

[0019] In some implementations, removing the second matching plate on the third optical-adhesive combination body includes:

[0020] Use a blade to remove the second matching plate.

[0021] Further, the removing the first matching disk on the third optical-plastic combination body comprises:

[0022] Use acetone to soak the first dish.

[0023] In some embodiments, before the first coating is plated in the manner of immersion in acetone, the method further includes heating the third photoresist combination to a preset temperature.

[0024] Furthermore, when processing the first side surface, the second side surface, the third side surface, the fourth side surface, the first end surface and the second end surface, the polishing liquid is used to polish at a low speed to set the size, and the thickness error of the entire disk edge is controlled to be no greater than the error thickness threshold.

[0025] In some embodiments, the coating on the first end surface and the second end surface comprises:

[0026] The optical glue is stabilized for a predetermined time after the second dispensing;

[0027] The surface shapes of the first end face and the second end face are detected, and when the surface shapes of the first end face and the second end face change within a range of a preset surface shape threshold, the first end face and the second end face are plated.

[0028] The beneficial effects of the optical rod processing method based on optical glue provided by the present application are at least:

[0029] Through the arrangement of the first matching plate and the second matching plate, the first matching plate and the second matching plate can participate in the subsequent frosting and polishing, which can greatly reduce the risk of edge chipping on the side edges and the end faces, improve the vertical accuracy of the light guide rod at the edge position and greatly improve the product yield.

[0030] By providing the first matching plate and the second matching plate, the processed surface can be protected to avoid damage to the processed surface during subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 A flow chart of a method for processing a light guide rod based on optical glue provided in an embodiment of the present application;

[0033] Figure 2 A schematic diagram of the structure of the first part provided in an embodiment of the present application;

[0034] Figure 3 A schematic diagram of assembling a first component and a first matching plate provided in an embodiment of the present application;

[0035] Figure 4 A schematic diagram of the structure in which the first optical adhesive combination provided in the embodiment of the present application is fixed on the support body;

[0036] Figure 5A schematic diagram of assembling the first optical adhesive combination and the second matching tray provided in an embodiment of the present application;

[0037] Figure 6 A schematic diagram of the structure in which the second optical adhesive combination provided in an embodiment of the present application is fixed on a support body.

[0038] Among them, the reference numerals in the figure are:

[0039] 1. first part; 11. first side surface; 12. second side surface; 13. third side surface; 14. fourth side surface; 15. first end surface; 16. second end surface;

[0040] 2. The first matching plate;

[0041] 3. Second matching plate;

[0042] 4. Rely on the body. DETAILED DESCRIPTION

[0043] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0044] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be directly or indirectly located on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the accompanying drawings and are only for the convenience of description and cannot be understood as limitations on the present technical solution. The terms "first" and "second" are only used for the convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0045] It should be noted that the shape of the light guide rod part is similar to a cuboid, with the length direction being much larger than the width and height directions, and each face is a plane, adjacent planes are perpendicular to each other, and all edges of the light guide rod part are required not to be chamfered, which makes the verticality requirements of adjacent planes very high.

[0046] During processing, grinding and polishing steps are required to improve the surface finish, surface shape, parallelism and other index parameters of each plane. In traditional technology, the edges of the light guide rod parts are not protected during the processing, which can easily cause the edges of the light guide rod parts to collapse, affecting the optical performance of the light guide rod parts and reducing the product yield.

[0047] Furthermore, the names involved in this application are explained as follows:

[0048] Polishing: Polishing is a process that relies on the attraction between molecules to tightly bond two surfaces together. The attraction between molecules on the surfaces is a statistical physical phenomenon. It does not work on the entire polishing surface, but works between the microscopic peaks or troughs of the two surfaces. Since the peaks and troughs are small and dense, the statistical area that produces molecular attraction is quite large, enough to make the two surfaces polished. In addition, the polishing is to apply pressure to the edge of the polished part first, so that the part is polished first. In the area near the interface of the polished and unpolished surfaces, the molecular attraction causes deformation, causing the unpolished surfaces that are in contact with each other to reach the range of molecular attraction, so that the polished bonding surface gradually expands until the entire bonding surface is polished together.

[0049] Compared with adhesive layer bonding, optical glue has higher mechanical strength and stable performance, which can be maintained for decades; it has small deformation and good cold and heat resistance. For parts whose surface will be deformed during bonding, or parts that will be debonded due to large external dimensions, or parts that work under high or low temperature conditions, or parts that work in the short-wave part of optical harmonics (current optical glue has a large light energy loss at short waves), etc., optical glue can be used in combination. The optical glue process also requires high manufacturing precision of the optical glue surface.

[0050] Support body: refers to the workpiece used to assist the parts in processing and positioning. The support body has positioning structures such as pads and cuboids: Pads are used to replicate the tooling of part angles, and the angle accuracy is very high, reaching the second level; pads can be single-piece pads: the pads are short, and only one part can be processed on a single pad; pads can be long pads: the pads are long, and usually at least two parts can be processed on a long pad. The cuboid is used to replicate the verticality between the faces of the parts.

[0051] Matching tray: refers to the tool used to bond to the surface of optical components during the manufacturing process of optical parts. It can help operators protect specific surfaces on optical components.

[0052] The following describes the optical rod processing method based on optical glue according to an embodiment of the present application in conjunction with the accompanying drawings.

[0053] See also Figure 1 , Figure 1 The flowchart of the optical rod processing method based on optical glue of the present application is shown, which includes the following steps:

[0054] Step S1: providing an optical blank, a first matching plate 2, a second matching plate 3 and a support body 4.

[0055] Step S2: Surface processing is performed on the optical blank to form a first part 1 with a rectangular parallelepiped structure. Figure 2 and Figure 3 The first part 1 includes six surfaces, namely: a first side surface 11 and a second side surface 12 arranged opposite to each other, a third side surface 13 and a fourth side surface 14 perpendicular to the first side surface 11 and arranged opposite to each other, and a first end surface 15 and a second end surface 16 located at both ends of the first side surface 11, the second side surface 12, the third side surface 13 and the fourth side surface 14 and arranged opposite to each other.

[0056] Step S3: See Figure 1 , Figure 3 and Figure 4 , process the first side surface 11 and the second side surface 12, process the first side surface 11 and the second side surface 12 to the first surface shape parameter, put a first optical adhesive disc 2 on the first side surface 11 and the second side surface 12, so that the first optical adhesive disc 2 covers the first side surface 11 and the second side surface 12 to form a first optical adhesive combination.

[0057] Step S4: See Figure 1 , Figure 4 and Figure 5 , photo-bond the first disc 2 of the first photo-bond combination to the support body 4, and process the third side 13, the fourth side 14 and the first disc 2, so that the third side 13 and the fourth side 14 are processed to the first surface parameters and are flush with the first disc 2.

[0058] Step S5: applying a second optical adhesive disc 3 on the third side surface 13 and the fourth side surface 14 so that the second optical adhesive disc 3 covers the third side surface 13, the fourth side surface 14 and the first optical adhesive disc 2 to form a second optical adhesive combination body.

[0059] Step S6: Process the first end face 15, the second end face 16 and the first and second matching disks 2 and 3, so that the first end face 15 and the second end face 16 are processed to the second surface parameter and are flush with the first and second matching disks 2 and 3, and coat the first end face 15 and the second end face 16 to form a third optical-resist combination.

[0060] Step S7: remove the second matching plate 3 on the third optical adhesive combination body.

[0061] Step S8: Remove the first matching disk 2 on the third optical-plastic combination body to obtain the optical guide rod.

[0062] It can be understood that processing the first side face 11, the second side face 12, the third side face 13, the fourth side face 14, the first end face 15 and the second end face 16 refers to grinding and polishing their surfaces, and the first part 1 does not chamfer the edges during the processing. After processing, a light guide rod with highly vertical edges and high surface finish can be obtained.

[0063] When using traditional processing methods, each surface of the first part 1 will be processed directly, which will cause edge chipping between adjacent surfaces. In addition, since the product requires no chamfering, the probability that the processed optical rod does not meet the production requirements will increase, thereby reducing the yield rate of the optical rod processing.

[0064] In the processing of the present application, the first side surface 11 and the second side surface 12 of the first part 1 are processed first, then the third side surface 13 and the fourth side surface 14 are processed, and finally the first end surface 15 and the second end surface 16 are processed.

[0065] The key point is that before processing the third side surface 13 and the fourth side surface 14, the first matching plate 2 is used to cover the first side surface 11 and the second side surface 12 that have been processed, and the edge of the first matching plate 2 protrudes or is flush with the edge of the first end surface 15 and the second end surface 16. In this way, when processing the third side surface 13 and the fourth side surface 14, the third side surface 13, the fourth side surface 14 and the edge of the first matching plate 2 will be frosted and polished at the same time. During the frosting and polishing process, the edge of one side of the first matching plate 2 and the third side surface 13 will constitute a processed surface, and the edge of the other side of the first matching plate 2 and the fourth side surface 14 will constitute another processed surface. The edge of the first matching plate 2 is equivalent to the expanded surface of the third side surface 13 and the fourth side surface 14. Even if edge collapse occurs during the frosting and polishing process, the edge collapse will occur at the edge of the first matching plate 2 on the side away from the first part 1. Therefore, the risk of edge collapse on the side of the first part 1 is greatly reduced by setting the first matching plate 2.

[0066] Furthermore, before processing the first end face 15 and the second end face 16, the second disc 3 is used to cover the processed third side face 13 and the fourth side face 14, and the second disc 3 also covers the edge of the first disc 2. At the same time, the edges of the first disc 2 and the second disc 3 on the first end face 15 and the second end face 16 protrude from the first end face 15 and the second end face 16. In this way, when processing the first end face 15 and the second end face 16, the first end face 15, the second end face 16 and the edges of the first and second discs 2 and 3 will be frosted and polished at the same time. During the frosting and polishing process, one side edge of the first and second discs 2 and 3 and the first end face 15 will constitute a processed surface, and the other side edge of the first and second discs 2 and 3 and the second end face 16 will constitute another processed surface. The edges of the first and second discs 2 and 3 are equivalent to the expanded surfaces of the first and second end faces 15 and 16. Even if edge chipping occurs during the frosting and polishing process, the edge chipping will occur at the edge of the first disc 2 or the second disc 3 away from the first part 1. Therefore, by setting the second disc 3, the risk of edge chipping on the end face of the first part 1 is greatly reduced.

[0067] It can be understood that the optical guide rod has a total of four side edges and eight end edges. During the processing, through the arrangement of the first matching plate 2 and the second matching plate 3, the first matching plate 2 and the second matching plate 3 can participate in the subsequent frosting and polishing, which can greatly reduce the risk of chipping of the side edges and the end edges. The vertical accuracy of the optical guide rod at the edge position is improved and the product yield is greatly improved.

[0068] Furthermore, by providing the first matching plate 2 and the second matching plate 3, the processed surface can be protected to avoid damage to the processed surface during subsequent processing.

[0069] Furthermore, in step S2, surface processing of the optical blank to form the first part 1 of a rectangular structure refers to cutting the optical blank so that the optical blank is initially formed into a rectangular structure, and then frosting and polishing the surface of the optical blank in sequence to reduce the surface roughness to obtain the first part 1.

[0070] Furthermore, the first matching plate 2 and the second matching plate 3 are made of the same material as the optical blank, and the material includes any one of colorless optical glass, crown glass, flint glass, ultraviolet glass, infrared glass, quartz crystal, and sapphire.

[0071] It is understandable that different materials require different processing parameters, including contact pressure, temperature, etc. For example, the hardness of quartz crystal is greater than that of flint glass. If the optical blank is made of flint glass, and the first matching plate 2 and the second matching plate 3 are made of quartz crystal, during processing, if the pressure value of the polishing plate matches the flint glass (optical blank), but this pressure value is not enough to frosted the quartz crystal (first matching plate 2), the processing efficiency will be reduced. If the pressure value of the polishing plate matches the quartz crystal (first matching plate 2), this pressure value will be too large for the flint glass (optical blank), and the excessive pressure value will easily cause the surface of the quartz glass (optical blank) to be damaged, and surface defects such as cracks will easily appear.

[0072] By setting the first matching plate 2 to be made of the same material as the optical blank, when the third side surface 13 and the fourth side surface 14 are processed, the edge of the first matching plate 2 can be frosted and polished synchronously with the first part 1, thereby improving the synchronization of processing, improving the processing efficiency, reducing the risk of damage to the surface of the first part 1, and improving the processing quality of the first part 1.

[0073] For example, when the optical blank is made of quartz crystal, the first matching plate 2 and the second matching plate 3 are also made of quartz crystal.

[0074] Furthermore, the first surface shape parameter and the second surface shape parameter include any one of a smoothness parameter, a surface shape parameter, and a parallelism parameter, or a combination thereof.

[0075] It can be understood that when processing optical parts, each surface needs to have parameter requirements. The first surface shape parameter and the second surface shape parameter are the parameter requirements of each surface of the light guide rod.

[0076] Furthermore, due to the structural requirements of the light guiding rod, the accuracy of the first surface parameters of the first end face 15 and the second end face 16 is lower than the accuracy of the second surface parameters.

[0077] Exemplarily, the first surface parameters of the optical guide rod include: first parallelism difference ≤5", aperture ≤0.3, flatness ≤0.5, and surface shape PV ≤0.5fr@633nm. The second surface parameters of the optical guide rod include: second parallelism difference ≤3", aperture ≤0.2, flatness ≤0.3, and surface shape PV ≤0.3fr@633nm.

[0078] In some embodiments, the first matching tray 2 and the second matching tray 3 are provided with a photobonding surface for photobonding to the first part 1. Before the first matching tray 2 and the second matching tray 3 are photobonded to the first part 1, the photobonding surface is processed to a third surface shape parameter, and the accuracy of the third surface shape parameter is not lower than the accuracy of the first surface shape parameter.

[0079] It can be understood that the first matching plate 2 is used for optical glue on the processed first side surface 11 and the second side surface 12. From the perspective of optical glue, the optical glue surface of the first matching plate 2 needs to have a certain degree of smoothness to achieve optical glue fixation. Secondly, from the perspective of protection, the optical glue surface of the first matching plate 2 has a higher degree of smoothness than the first side surface 11 and the second side surface 12, which can reduce the risk of the first side surface 11 and the second side surface 12 being scratched and damaged by the optical glue surface.

[0080] Similarly, the second tray 3 is used for applying optical adhesive on the processed third side surface 13 and fourth side surface 14 , similar to the first tray 2 , and in order to protect the third side surface 13 and fourth side surface 14 , the optical adhesive surface of the second tray 3 is processed to the third surface parameter.

[0081] Exemplarily, the first surface parameters of the optical guide rod include: first parallelism difference ≤5", aperture ≤0.3, flatness ≤0.5, and surface shape PV ≤0.5fr@633nm. The third surface parameters of the optical resin surface include: second parallelism difference ≤4", aperture ≤0.25, flatness ≤0.4, and surface shape PV ≤0.4fr@633nm.

[0082] In some embodiments, a layer to be processed of a preset thickness is reserved on each surface of the first part 1. When the first side surface 11, the second side surface 12, the third side surface 13 and the fourth side surface 14 are processed to the first surface shape parameter, and the first end face 15 and the second end face 16 are processed to the second surface shape parameter, the layer to be processed is removed.

[0083] The preset thickness of the layer to be processed refers to the thickness of the surface of the first part 1 after being frosted and polished. For example, the length of the light guide rod is 150 mm, and the width and thickness are both 9 mm. The length of the first part 1 is 151 mm, and the width and thickness are both 10 mm, then the preset thickness is 0.5 mm.

[0084] Furthermore, there are many ways to disassemble the plate, including, for example, using a blade to disassemble the plate, soaking the plate, heating the plate, etc. After processing the first end face 15 and the second end face 16, the first plate 2 and the second plate 3 need to be disassembled to obtain the processed light guide rod, but if the disassembly method is not used correctly, especially for light guide rods with high edge requirements, it is easy to cause the edges of the light guide rod to be damaged.

[0085] In some embodiments, removing the second tray 3 on the third optical adhesive combination body includes: removing the second tray 3 by using a blade.

[0086] Furthermore, removing the first matching plate 2 on the third optical-resist combination body includes: removing the first matching plate 2 by soaking in acetone.

[0087] It can be found from the above embodiment that after processing the first end face 15 and the second end face 16, the first matching disc 2 is fixed on the first side face 11 and the second side face 12 by optical glue, the second matching disc 3 is fixed on the third side face 13 and the fourth side face 14 by optical glue, and the second matching disc 3 covers the side end face of the first matching disc 2.

[0088] Therefore, the second plate 3 is first removed, and then a blade is used to remove the plate. A sharp blade or scraper is used to insert the blade between the abutting surfaces of the first plate 2 and the second plate 3 to pry open the second plate 3. Since the blade contacts the first plate 2 and the second plate 3, it will not affect the surface of the optical rod. The convenience and speed of removing the plate with the blade is fully utilized, and the removal efficiency is improved without causing damage to the surface of the optical rod.

[0089] Then, the first matching plate 2 is removed by soaking in acetone. The reason why the method of removing the first matching plate 2 by using a blade is not used here is that the first matching plate 2 is only in direct contact with the optical guide rod. If a blade is used, the surface of the optical guide rod may be easily scratched. When soaking in acetone, the optical guide rod and the first matching plate 2 are soaked in acetone solvent until the first matching plate 2 is separated from the optical guide rod. Then the first matching plate 2 can be removed without scratching the surface of the optical guide rod.

[0090] It should be noted that when removing the first and second matching plates 2 and 3, if only a blade is used to remove the plates, the surface of the light guide rod is easily scratched, and if only acetone is used to remove the plates, the removal time will be very long, reducing the processing efficiency. The reason why the blade removal and acetone immersion removal can be combined is that the first and second matching plates 2 and 3 are arranged in a way that the step-by-step non-destructive removal can be achieved during the grinding and polishing process.

[0091] In other words, if the second tray 3 does not cover the edge side end surface of the first tray 2, the second tray 3 cannot be pried open with a blade, because the blade will contact the optical rod when prying the second tray 3, scratching and damaging the surface of the optical rod.

[0092] Furthermore, before placing the first tray 2 in the acetone soaking method, the method further includes heating the third photoresist combination body to a preset temperature.

[0093] Specifically, the third optical-plastic combination is heated and kept warm, and then cooled naturally, so that the stress between the first matching plate 2 and the optical guide rod on the third optical-plastic combination can be reduced before the plate is removed, thereby reducing the adverse effects caused by the release of residual stress.

[0094] In some embodiments, when processing the first side surface 11, the second side surface 12, the third side surface 13, the fourth side surface 14, the first end surface 15 and the second end surface 16, the polishing liquid is used to polish at a low speed to set the size, and the thickness error of the entire disk edge is controlled to be no greater than the error thickness threshold.

[0095] Furthermore, coating is performed on the first end face 15 and the second end face 16, including: stabilizing the optical resin on the second disk 3 for a predetermined time; detecting the surface shapes of the first end face 15 and the second end face 16, and coating the first end face 15 and the second end face 16 when the surface shape changes of the first end face 15 and the second end face 16 are within a range of a preset surface shape threshold.

[0096] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A method for processing a light-guiding rod based on optical glue, characterized in that: include: Providing an optical blank, a first matching plate, a second matching plate and a support body; The optical blank is subjected to surface processing to form a first part of a rectangular parallelepiped structure, wherein the first part comprises: a first side surface and a second side surface which are opposite to each other, a third side surface and a fourth side surface which are perpendicular to the first side surface and opposite to each other, and a first end surface and a second end surface which are opposite to each other and are located at both ends of the first side surface, the second side surface, the third side surface and the fourth side surface; Processing the first side surface and the second side surface to a first surface shape parameter, applying the first optical adhesive plate to the first side surface and the second side surface, so that the first optical adhesive plate covers the first side surface and the second side surface, thereby forming a first optical adhesive combination body; Optically glue the first plate of the first optical glue combination onto the support body, process the third side surface, the fourth side surface and the first plate, so that the third side surface and the fourth side surface are processed to the first surface shape parameter and are flush with the first plate, and optically glue the second plate onto the third side surface and the fourth side surface so that the second plate covers the third side surface, the fourth side surface and the first plate, thereby forming a second optical glue combination; Processing the first end face, the second end face, and the first and second matching discs, so that the first end face and the second end face are processed to a second surface shape parameter and are flush with the first and second matching discs; Coating the first end surface and the second end surface to form a third optical-plastic combination body; Removing the second matching plate on the third optical-plastic combination body; The first matching disk on the third optical-plastic combination is removed to obtain a light guiding rod.

2. The method for processing a light-guiding rod based on optical glue according to claim 1, characterized in that: The first matching plate and the second matching plate are made of the same material as the optical blank.

3. The method for processing a light-guiding rod based on optical glue according to claim 1, characterized in that: The first surface shape parameter and the second surface shape parameter include any one of a smoothness parameter, a surface shape parameter, and a parallelism parameter, or a combination thereof, and the accuracy of the first surface shape parameter is lower than the accuracy of the second surface shape parameter.

4. The method for processing a light-guiding rod based on optical glue according to claim 1, characterized in that: The first and second matching trays are provided with optical glue surfaces for optically gluing the first part. Before optically gluing the first and second matching trays to the first part, the optical glue surfaces are processed to third surface shape parameters, and the accuracy of the third surface shape parameters is not lower than the accuracy of the first surface shape parameters.

5. The method for processing a light-guiding rod based on optical glue according to claim 1, characterized in that: A layer to be processed of a preset thickness is reserved on each surface of the first part. When the first side surface, the second side surface, the third side surface and the fourth side surface are processed to the first surface shape parameter, and the first end surface and the second end surface are processed to the second surface shape parameter, the layer to be processed is removed.

6. The method for processing a light-guiding rod based on optical glue according to claim 1, characterized in that: The removing of the second matching plate on the third optical-plastic combination body comprises: Use a blade to remove the second matching plate.

7. The method for processing a light-guiding rod based on optical glue according to claim 1, characterized in that: The removing the first matching disk on the third optical-plastic combination body comprises: Use acetone to soak the first dish.

8. The method for processing a light-guiding rod based on optical glue according to claim 7, characterized in that: Before the first plate is plated in the manner of immersing in acetone, the third photoresist combination is also heated to a preset temperature.

9. The method for processing a light-guiding rod based on optical glue according to claim 1, characterized in that: When processing the first side surface, the second side surface, the third side surface, the fourth side surface, the first end surface and the second end surface, the polishing liquid is used to polish at a low speed to set the size, and the thickness error of the entire disk edge is controlled to be no greater than the error thickness threshold.

10. The method for processing a light-guiding rod based on optical glue according to claim 1, characterized in that: The coating on the first end surface and the second end surface comprises: The optical glue is stabilized for a predetermined time after the second dispensing; The surface shapes of the first end face and the second end face are detected, and when the surface shapes of the first end face and the second end face change within a range of a preset surface shape threshold, the first end face and the second end face are plated.

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