Lens bonding jig

Abstract

The utility model relates to the field of lens bonding technology, and in particular to a lens bonding jig. The lens bonding jig provided by the utility model includes a glass carrier and an adsorbent, the glass carrier is provided with an adsorption hole, the adsorption hole is used to adsorb a first lens, the adsorbent is arranged below the glass carrier, the adsorbent is provided with a ventilation groove, the ventilation groove is respectively connected to the adsorption hole and the negative pressure device, and the adsorbent is made of thermoplastic plastic. Since the adsorbent is made of thermoplastic plastic, when the ventilation groove is processed inside the adsorbent, the adsorbent will not be broken, thereby reducing the lens production cost and improving production efficiency. In addition, the adsorbent made of thermoplastic plastic can produce plastic deformation, which can prevent the glass carrier from being subjected to excessive negative pressure, causing the flatness of the glass carrier to change, so that the lens has a better bonding effect.

Description

Technical Field

[0001] The utility model relates to the technical field of lens lamination, in particular to a lens lamination jig. Background Art

[0002] VR (Virtual Reality) uses computers to create a three-dimensional virtual world, providing users with interactive scenes of vision, touch, and hearing, allowing users to feel personally immersed in the virtual world, and at the same time observe and interact with things in the three-dimensional space. Virtual reality head-mounted display equipment, referred to as VR glasses, is a product that uses simulation technology and computer graphics human-computer interface technology, multimedia technology, sensor technology, network technology and other technologies. It is a new means of human-computer interaction created with the help of computers and the latest sensor technology. In recent years, with the emergence of a large number of head-mounted electronic devices, VR glasses technology has been widely used.

[0003] In the manufacturing process of VR glasses, two optical waveguide lenses need to be bonded together. In the prior art, two lenses are generally bonded together by a lens bonding jig. Specifically, the lens bonding jig includes a glass carrier and a glass adsorption plate. The glass carrier is provided with adsorption holes, and the glass adsorption plate is provided with ventilation grooves. The two ends of the ventilation grooves are respectively connected to the adsorption holes and the negative pressure device, so that one of the lenses can be adsorbed. After that, the other lens is bonded to the lens adsorbed on the glass carrier.

[0004] In the prior art, on the one hand, it is necessary to process a plurality of complex ventilation grooves on the glass adsorption plate. Since the glass is relatively hard, the glass adsorption plate is very easy to break during the processing, thereby affecting the efficiency of lens bonding and increasing the cost of lens bonding. On the other hand, the ventilation grooves of the glass adsorption plate are relied upon to provide an air path for the glass carrier. There is a small gap between the two glasses, which causes excessive negative pressure on the glass carrier. Under the influence of the pressure difference, the flatness of the glass carrier changes, affecting the final lens bonding effect.

[0005] Therefore, there is an urgent need for a lens bonding jig to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a lens bonding jig, which, on the one hand, solves the problem that the glass adsorption plate is very easy to break due to directly processing multiple ventilation grooves on the glass adsorption plate in the prior art; on the other hand, improves the effect and efficiency of lens bonding and saves production costs.

[0007] In order to achieve the above objectives, the following technical solutions are provided:

[0008] Lens bonding jig, including:

[0009] A glass stage, wherein the glass stage is provided with an adsorption hole, and the adsorption hole is used to adsorb the first lens;

[0010] The adsorption member is arranged below the glass carrier, and is provided with ventilation grooves, which are respectively connected with the adsorption holes and the negative pressure device, and the adsorption member is made of thermoplastic plastic.

[0011] As an optional solution, the adsorption element is made of acrylic material.

[0012] As an optional solution, the glass carrier and the adsorption member are adhered and fixed by using OCA optical glue.

[0013] As an optional solution, there are multiple adsorption holes, and a transparent tape is attached to the top of the glass carrier, and the transparent tape is used to block the adsorption holes in the non-lens area of ​​the glass carrier.

[0014] As an optional scheme, the multiple adsorption holes are arranged in an array, and the ventilation groove includes multiple ventilation holes, multiple columns of first grooves and at least one row of second grooves. The ventilation holes are arranged in a one-to-one correspondence with the adsorption holes, and the multiple columns of the first grooves are arranged in a one-to-one correspondence below the multiple columns of the ventilation holes, and the second groove is connected to the first groove.

[0015] As an option, it also includes:

[0016] The curing light source is configured to emit a curing light beam toward the glass stage.

[0017] As an optional solution, the lens bonding jig further includes:

[0018] A carrier, the curing light source is carried on top of the carrier.

[0019] As an optional solution, the carrier includes:

[0020] Mounting seat;

[0021] The mounting plate is arranged above the mounting seat, and a through hole is arranged in the middle area of ​​the mounting plate. The curing light source can emit a curing light beam toward the glass stage through the through hole.

[0022] As an optional solution, the glass carrier is arranged above the mounting plate, and the glass carrier and the mounting plate are fixed to each other via sealing silicone.

[0023] As an optional solution, the side of the glass carrier facing the first lens is frosted.

[0024] Compared with the prior art, the beneficial effects of the utility model are:

[0025] The lens bonding jig provided by the utility model includes a glass carrier and an adsorbent, the glass carrier is provided with an adsorption hole, the adsorption hole is used to adsorb the first lens, the adsorbent is arranged below the glass carrier, the adsorbent is provided with a venting groove, the venting groove is respectively connected with the adsorption hole and the negative pressure device, and the adsorbent is made of thermoplastic plastic. Since the adsorbent is made of thermoplastic plastic, when the venting groove is processed inside the adsorbent, the adsorbent will not be broken, thereby reducing the lens production cost and improving the production efficiency; in addition, the adsorbent made of thermoplastic plastic can produce plastic deformation, which can prevent the glass carrier from being subjected to excessive negative pressure, causing the flatness of the glass carrier to change, so that the lens has a better bonding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0027] Figure 1 One of the structural schematic diagrams of the lens bonding jig provided in an embodiment of the utility model;

[0028] Figure 2 An exploded view of a lens bonding jig provided in an embodiment of the utility model;

[0029] Figure 3 The second structural schematic diagram of the lens bonding jig provided by the embodiment of the utility model;

[0030] Figure 4 for Figure 3 Sectional view at AA in the middle;

[0031] Figure 5 A cross-sectional view and diagram of an adsorption member provided in an embodiment of the utility model.

[0032] Reference numerals:

[0033] 100. Lens bonding jig;

[0034] 10. Glass stage; 11. Adsorption hole;

[0035] 20. Adsorption member; 21. Ventilation groove; 211. Ventilation hole; 212. First channel; 213. Second channel;

[0036] 30. Curing light source;

[0037] 40. bearing member; 41. mounting seat; 42. mounting plate; 421. through hole;

[0038] 50. Cooling module; 51. Cooling pipe; 52. Liquid inlet pipe; 53. Liquid outlet pipe. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0040] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0041] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0042] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0043] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0045] like Figure 1-Figure 4 As shown, this embodiment provides a lens bonding jig 100, which is used to bond a first lens to a second lens. The lens bonding jig 100 includes a glass carrier 10 and an adsorbent 20. The glass carrier 10 is provided with an adsorption hole 11, and the adsorption hole 11 is used to adsorb the first lens. The adsorbent 20 is arranged below the glass carrier 10. The adsorbent 20 is provided with a vent 21, and the vent 21 is connected to the adsorption hole 11 and the negative pressure device respectively. The adsorbent 20 is made of thermoplastic plastic. During bonding, the glass carrier 10 adsorbs the first lens, and then the transport module transports and bonds the second lens to the top of the first lens. Since the adsorbent 20 is made of thermoplastic plastic, the adsorbent 20 will not be broken when the ventilation groove 21 is processed inside it, thereby reducing the lens production cost and improving production efficiency. In addition, the adsorbent 20 made of thermoplastic plastic can produce plastic deformation, which can prevent the glass carrier 10 from being subjected to excessive negative pressure, which will cause the flatness of the glass carrier 10 to change, so that the lens has a better fitting effect.

[0046] like Figure 2 As shown, the lens bonding jig 100 further includes a curing light source 30, which is used to emit a curing light beam to the glass stage 10. After bonding, the glue between the first lens and the second lens needs to be cured. In order to prevent the bonding accuracy and effect from being damaged due to untimely curing after bonding, the curing light source 30 is added to timely cure the bonded first lens and the second lens.

[0047] Furthermore, the adsorbent 20 is made of acrylic material. Acrylic material has good transparency, chemical stability and is easy to process. The glass carrier 10 and the adsorbent 20 are adhered and fixed with OCA (Optically Clear Adhesive) optical glue. OCA optical glue has the characteristics of being colorless and transparent, with a light transmittance of more than 95%, and good bonding strength. The curing light source 30 is arranged below the adsorbent 20, so that the curing light source 30 can emit a curing light beam to the glass carrier 10 through the adsorbent 20.

[0048] In order to make the lens bonding jig 100 compatible with first lenses of different specifications, such as Figure 1-Figure 4 As shown, there are multiple adsorption holes 11, and a transparent tape (not shown in the figure) is attached to the top of the glass carrier 10, and the transparent tape blocks the adsorption holes 11 in the non-lens area on the glass carrier 10. Specifically, a layer of transparent tape is attached to the glass carrier 10, and the transparent tape can cover all the adsorption holes 11 on the glass carrier 10. When it is necessary to bond the lens, a suitable adsorption area can be selected on the transparent tape according to the size of the first lens to be adsorbed on the glass carrier 10, and holes can be punched on the transparent tape to expose all the adsorption holes 11 in the adsorption area, while all the adsorption holes 11 outside the adsorption area are still covered by the transparent tape to avoid vacuum leakage due to the fact that some adsorption holes 11 are not covered. Therefore, the lens bonding jig 100 can be compatible with the adsorption of first lenses of different sizes, thereby improving the applicability of the lens bonding jig 100, and the lens bonding jig 100 can adapt to first lenses of various sizes, thereby reducing production costs.

[0049] like Figure 1-Figure 5 As shown, a plurality of adsorption holes 11 are arranged in an array, and the ventilation groove 21 includes a plurality of ventilation holes 211, a plurality of first grooves 212 and at least one row of second grooves 213. The ventilation holes 211 are arranged one-to-one with the adsorption holes 11, and the plurality of first grooves 212 are arranged one-to-one under the plurality of ventilation holes 211. The two ends of the second groove 213 are respectively connected with the first groove 212 and the negative pressure device to provide negative pressure adsorption force to the glass carrier 10 to adsorb the first lens. Figure 5 As shown, there is a solid body between two adjacent rows of first grooves 212, that is, the portion of the adsorbent 20 between two adjacent rows of first grooves 212 can support the glass carrier 10, thereby avoiding deformation of the middle area of ​​the glass carrier 10 due to excessive negative pressure suction, thereby ensuring that the first lens adsorbed on the glass carrier 10 remains flat.

[0050] like Figure 1-Figure 4As shown, the lens bonding jig 100 further includes a carrier 40, and the glass carrier 10, the adsorbent 20 and the curing light source 30 are all carried on the carrier 40. Specifically, the carrier 40 includes a mounting seat 41 and a mounting plate 42, and the mounting plate 42 is arranged above the mounting seat 41. A through hole 421 is arranged in the middle area of ​​the mounting plate 42, and the curing light source 30 can emit a curing light beam toward the glass carrier 10 through the through hole 421.

[0051] Furthermore, the glass stage 10 is disposed above the mounting plate 42 , and the glass stage 10 and the mounting plate 42 are fixed to each other via sealing silicone to prevent vacuum leakage and failure to adsorb the first lens.

[0052] It can be understood that before the second lens is bonded to the top of the first lens, the visual inspection module is first used to detect and determine the position of the first lens, and then the second lens is transported and bonded to the top of the first lens by the transport module. In order to prevent the multiple adsorption holes 11 provided on the glass carrier 10 from affecting the edge grasping of the visual inspection module, the glass carrier 10 in this embodiment is frosted on the side facing the first lens, thereby preventing the multiple adsorption holes 11 provided on the glass carrier 10 from affecting the detection of the visual inspection module. At the same time, the frosted glass carrier 10 will not affect the edge grasping of the visual inspection module, thereby ensuring that the visual inspection module can accurately grasp the edge of the first lens.

[0053] It should be noted that the specific structures of the negative pressure device, the curing light source 30, the visual inspection module and the transport module mentioned above are all existing technologies, so they will not be described in detail in this embodiment.

[0054] like Figure 1 and Figure 4 The lens bonding jig 100 shown further includes a cooling module 50, which is used to cool the curing light source 30 to increase the service life of the curing light source 30, that is, to avoid the need for frequent replacement of the curing light source 30, thereby further reducing production costs.

[0055] Specifically, the cooling module 50 includes a cooling pipe 51, a liquid inlet pipe 52 and a liquid outlet pipe 53. The cooling pipe 51 is formed in the curing light source 30. The liquid inlet pipe 52 is arranged at one end of the cooling pipe 51, and the two ends of the liquid inlet pipe 52 are respectively connected to a liquid source (not shown in the figure) and the cooling pipe 51. The liquid source is used to supply cooling liquid to the liquid inlet pipe 52. The liquid outlet pipe 53 is arranged at the other end of the cooling pipe 51, and the two ends of the liquid outlet pipe 53 are respectively connected to a collector (not shown in the figure) and the cooling pipe 51. The collector is used to collect the cooling liquid flowing out of the liquid outlet pipe 53, that is, the cooling liquid can flow along the cooling pipe 51 in the curing light source 30, thereby absorbing the heat generated during the operation of the curing light source 30.

[0056] Note that in the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0057] The above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A lens bonding jig, characterized in that: include: A glass carrier (10), wherein the glass carrier (10) is provided with an adsorption hole (11), and the adsorption hole (11) is used to adsorb the first lens; The adsorption component (20) is arranged below the glass carrier (10). The adsorption component (20) is provided with a ventilation groove (21). The ventilation groove (21) is respectively connected to the adsorption hole (11) and the negative pressure device. The adsorption component (20) is made of thermoplastic plastic.

2. The lens bonding jig according to claim 1, characterized in that: The adsorption element (20) is made of acrylic material.

3. The lens bonding jig according to claim 1, characterized in that: The glass carrier (10) and the adsorbent (20) are adhered and fixed using OCA optical glue.

4. The lens bonding jig according to any one of claims 1 to 3, characterized in that: The number of the adsorption holes (11) is plural, and a transparent tape is attached to the top of the glass carrier (10), and the transparent tape seals the adsorption holes (11) in the non-lens area on the glass carrier (10).

5. The lens bonding jig according to claim 4, characterized in that: The plurality of adsorption holes (11) are arranged in an array, the ventilation groove (21) comprises a plurality of ventilation holes (211), a plurality of columns of first grooves (212) and at least one row of second grooves (213), the ventilation holes (211) are arranged in a one-to-one correspondence with the adsorption holes (11), the plurality of columns of the first grooves (212) are arranged in a one-to-one correspondence below the plurality of columns of the ventilation holes (211), and the second grooves (213) are connected to the first grooves (212).

6. The lens bonding jig according to any one of claims 1 to 3, characterized in that: Also includes: The curing light source (30) is configured to emit a curing light beam toward the glass carrier (10).

7. The lens bonding jig according to claim 6, characterized in that: The lens fitting fixture further comprises: A carrier (40), wherein the curing light source (30) is carried on top of the carrier (40).

8. The lens bonding jig according to claim 7, characterized in that: The carrier (40) comprises: Mounting seat (41); The mounting plate (42) is arranged above the mounting seat (41), and a through hole (421) is arranged in the middle area of ​​the mounting plate (42), and the curing light source (30) can emit a curing light beam toward the glass carrier (10) through the through hole (421).

9. The lens bonding jig according to claim 8, characterized in that: The glass carrier (10) is arranged above the mounting plate (42), and the glass carrier (10) and the mounting plate (42) are fixed via sealing silica gel.

10. The lens bonding jig according to any one of claims 1 to 3, characterized in that: The glass carrier (10) is frosted on a side facing the first lens.

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