Color separation prism assembly gluing device and method

Abstract

The embodiment of the invention provides a color separation prism assembly gluing device and method, and the device comprises a pedestal which is fixed on an optical platform, the pedestal is provided with an accommodation groove for accommodating a first prism, and the bottom of the accommodation groove is provided with a hollow groove; the first mounting limiting assembly is fixedly connected with the base; the second mounting and limiting assembly is detachably connected with the base, and the second mounting and limiting assembly and the first mounting and limiting assembly are used for assisting in mounting and limiting the first prism, the second prism and the third prism; the first prism is contained in the containing groove of the base, damage to the bottom edge of the first prism is avoided by arranging the hollowed-out groove, the first prism, the second prism and the third prism are installed and limited in an auxiliary mode by arranging the first installation limiting assembly and the second installation limiting assembly, the gluing precision between the prisms is guaranteed, and the gluing yield is improved.

Description

Technical Field

[0001] The present application relates to the technical field of optical processing, and more particularly, to a dichroic prism assembly gluing device and method. Background Art

[0002] With the rapid development of technology, higher requirements have been put forward for the processing and optical performance of optical components in the optical field. To solve the limitations of single-material optical components in optical performance and the problem of high processing difficulty for optically complex components, the gluing and bonding technology has emerged. This technology aims to improve the performance and function of optical components by gluing specific types of films; optically complex components can be disassembled into easily processed optical components, and the optically complex components are integrated together through the gluing and pasting technology, which not only greatly reduces the processing difficulty but also improves the qualification rate of optical components. By combining a material with a high refractive index but large dispersion and a material with low dispersion but low refractive index through the gluing and pasting process, a composite lens with both high refractive index and low dispersion can be formed. By combining lenses of different materials, the glued lens can effectively correct aberrations, improve imaging quality, and reduce the system size; the gluing and pasting technology can integrate prisms of different sizes and shapes to achieve the dichroism of incident light. By means of the gluing and pasting technology, the requirements for optical devices in different application fields can be met, and the gluing and pasting process is widely used in high-precision optical components such as telescopes, cameras, cameras, laser systems, and spectrometers.

[0003] The gluing and pasting technology has developed into a common technical means in optical processing, but there are still some problems in practical applications. For example, in the fields of projectors, wearable VR, cameras, etc., optical gluing products that require small size and high-quality imaging undoubtedly pose higher requirements for the processing and gluing of optical products. The dichroic prisms used in these small optical products have high requirements for surface accuracy, angular accuracy, surface finish, and stress magnitude, etc. However, in the process of gluing existing dichroic prisms, there are problems such as low gluing accuracy and low gluing yield. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide a dichroic prism assembly gluing device and method to solve the problems of low gluing accuracy and low gluing yield in the process of gluing existing dichroic prisms.

[0005] In a first aspect, the embodiments of the present application provide a dichroic prism assembly gluing device, including:

[0006] A base fixed on an optical platform, the base is provided with a receiving groove for receiving a first prism, and a hollow groove is provided at the bottom of the receiving groove;

[0007] The first installation limiting component is fixedly connected to the base;

[0008] The second installation limiting component is detachably connected to the base. The second installation limiting component and the first installation limiting component are used to assist in installing and limiting the first prism, the second prism, and the third prism.

[0009] In the above implementation process, the first prism is accommodated in the accommodation groove of the base, the hollow groove is provided to avoid damaging the bottom edge of the first prism, and the first installation limiting component and the second installation limiting component are provided to assist in installing and limiting the first prism, the second prism, and the third prism, ensuring the gluing accuracy between the prisms and improving the qualified rate of gluing.

[0010] Further, the first installation limiting component includes: a first support limiting block, a second support limiting block, a first sliding limiting block, and a second sliding limiting block. The first support limiting block and the second support limiting block are both fixedly arranged on the base, and the first support limiting block is respectively attached to the accommodation groove and the second support limiting block;

[0011] The first support limiting block is provided with a first installation hole for installing the first sliding limiting block, the second support limiting block is provided with a second installation hole for installing the second sliding limiting block, and the first support limiting block and the second support limiting block are used to assist in fixing the third prism.

[0012] In the above implementation process, the first installation limiting component is provided to assist in installing and limiting the first prism, the second prism, and the third prism, ensuring the gluing accuracy between the prisms and improving the qualified rate of gluing.

[0013] Further, the second installation limiting component includes: a third limiting block, a first moving guide rail, and a second moving guide rail. The third limiting block is detachably connected to the base. The first moving guide rail vertically passes through the third limiting block and is detachably connected to the third limiting block. The second moving guide rail passes through the third limiting block at a first set angle and is detachably connected to the third limiting block;

[0014] The third limiting block is provided with a first protruding limiting portion and a second protruding limiting portion; the first protruding limiting portion is used to install and limit the first prism, the first moving guide rail is used to support, transfer, and place the second prism, the second protruding limiting portion is used to install and limit the second prism, and the second moving guide rail is used to transfer and place the third prism.

[0015] In the above implementation process, the second installation limiting component is provided to assist in installing and limiting the first prism, the second prism, and the third prism, ensuring the gluing accuracy between the prisms and improving the qualified rate of gluing.

[0016] Further, a first inclined groove for adjusting the second prism to a second set angle is provided on the inclined surface of the second prism, and a second inclined groove corresponding to the second moving guide rail is provided on the third prism.

[0017] In the above implementation process, it is convenient to install and place the second prism and the third prism.

[0018] Further, the first set angle of the second moving guide rail is consistent with the inclination angle of the inclined surface of the second prism.

[0019] In the above implementation process, it is convenient for the gluing and positioning of the second prism and the third prism.

[0020] In a second aspect, an embodiment of the present application provides a method for gluing a dichroic prism assembly, the method comprising:

[0021] Placing the first prism in the accommodation groove, and fixing the first prism through the first support limiting block and the first convex limiting portion;

[0022] Placing the second prism on the first moving guide rail, adjusting the first moving guide rail so that the surface to be glued of the second prism faces the gluing surface of the first prism, and applying optical glue to the gluing surface of the first prism;

[0023] Adjusting the first moving guide rail to withdraw the second prism, so that the second prism vertically falls to contact the first prism, and finely adjusting the position and applying pressure through the inclined groove of the second prism;

[0024] Installing the third prism on the second moving guide rail, adjusting the second moving guide rail so that the gluing surface of the third prism is parallel to the inclined surface of the second prism, and applying optical glue to the gluing surface of the second prism;

[0025] Adjusting the second moving guide rail to withdraw the third prism, so that the third prism fits with the second prism;

[0026] After curing the glue layer, removing the tooling and cleaning the residual glue to obtain a dichroic prism assembly.

[0027] Further, before placing the first prism in the accommodation groove and fixing the first prism through the first support limiting block and the first convex limiting portion, it further includes:

[0028] Preparing materials, cleaning the prism assembly, and installing and fixing the prism assembly gluing device.

[0029] Further, mounting the third prism on the second moving guide rail and adjusting the second moving guide rail to make the bonding surface of the third prism parallel to the inclined surface of the second prism includes:

[0030] Connect the side groove of the third prism to the second moving guide rail, and adjust the second moving guide rail. The inclination angle of the second moving guide rail is consistent with the inclined surface of the second prism, and the second moving guide rail matches the side groove of the third prism, so that the bonding surface of the third prism is parallel to the bonding inclined surface of the second prism.

[0031] Further, before adjusting the second moving guide rail to withdraw the third prism so that the third prism fits with the second prism, it further includes:

[0032] Move the first sliding limit block and the second sliding limit block to be clamped with the third prism and then fixed, move the second moving guide rail to fit with the side surface of the third prism and then fixed, position and fix the third prism, and then withdraw the second moving guide rail from the inclined groove of the third prism, so that the bonding surface to be bonded of the third prism is parallel and facing the bonding surface of the second prism.

[0033] Further, placing the second prism on the first moving guide rail and adjusting the first moving guide rail to make the bonding surface to be bonded of the second prism face the bonding surface of the first prism includes:

[0034] Place the second prism on the first moving guide rail, adjust the first moving guide rail, and limit the second prism through the second convex limiting part, so that the bonding surface to be bonded of the second prism faces the bonding surface of the first prism. Description of the Drawings

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0036] Figure 1 is a schematic structural diagram of a color separation prism assembly gluing device provided by an embodiment of the present application;

[0037] Figure 2 is a schematic diagram of placing the first prism of a color separation prism assembly gluing device provided by an embodiment of the present application on the gluing device;

[0038] Figure 3It is a schematic diagram of limiting and fixing the first prism of a dichroic prism assembly gluing device provided by an embodiment of the present application;

[0039] Figure 4 It is a schematic diagram of placing the second prism of a dichroic prism assembly gluing device provided by an embodiment of the present application on the gluing device;

[0040] Figure 5 It is a schematic diagram of gluing the first prism and the second prism of a dichroic prism assembly gluing device provided by an embodiment of the present application;

[0041] Figure 6 It is a schematic diagram of placing the third prism of a dichroic prism assembly gluing device provided by an embodiment of the present application on the gluing device;

[0042] Figure 7 It is a schematic diagram of gluing the second prism and the third prism of a dichroic prism assembly gluing device provided by an embodiment of the present application;

[0043] Figure 8 It is a schematic diagram of gluing and positioning the second prism and the third prism of a dichroic prism assembly gluing device provided by an embodiment of the present application;

[0044] Figure 9 It is a schematic diagram of the overall prism assembly of a dichroic prism assembly gluing device provided by an embodiment of the present application;

[0045] Figure 10 It is a schematic flow chart of a method for gluing a dichroic prism assembly provided by an embodiment of the present application;

[0046] In the figure, 21 is the base; 22 is the first support limiting block; 221 is the first mounting hole; 23 is the second support limiting block; 231 is the second mounting hole; 24 is the accommodating groove; 241 is the hollow groove; 25 is the first sliding limiting block; 26 is the second sliding limiting block; 27 is the third limiting block; 271 is the first convex limiting portion; 272 is the second convex limiting portion; 28 is the second moving guide rail; 29 is the first moving guide rail; 5 is the first prism; 51 is the surface to be glued of the first prism; 6 is the second prism; 61 is the surface to be glued of the second prism; 62 is the first inclined groove; 7 is the third prism; 71 is the second inclined groove; 72 is the side surface of the third prism. Detailed implementation manners

[0047] Next, the technical solutions in the embodiments of the present application will be described with reference to the accompanying drawings in the embodiments of the present application.

[0048] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present application, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0049] In a first aspect, Figure 1 is a schematic structural diagram of a color separation prism assembly gluing device provided by an embodiment of the present application. Referring to Figure 1 , the color separation prism assembly gluing device provided by this embodiment specifically includes:

[0050] A base 21, fixed on an optical platform. The base 21 is provided with a receiving groove 24 for receiving the first prism 5, and a hollow groove 241 is provided at the bottom of the receiving groove 24; a first installation limiting component, fixedly connected to the base 21; a second installation limiting component, detachably connected to the base 21. The second installation limiting component and the first installation limiting component are used to assist in installing and limiting the first prism 5, the second prism 6, and the third prism 7.

[0051] Thus, in the embodiment of the present application, the first prism 5 is received in the receiving groove 24 of the base 21, the hollow groove 241 is provided to avoid damaging the bottom edge of the first prism 5, and the first installation limiting component and the second installation limiting component are provided to assist in installing and limiting the first prism 5, the second prism 6, and the third prism 7, ensuring the gluing accuracy between the prisms and improving the gluing qualified rate.

[0052] In some embodiments, the first installation limiting component includes: a first support limiting block 22, a second support limiting block 23, a first sliding limiting block 25, and a second sliding limiting block 26. The first support limiting block 22 and the second support limiting block 23 are both fixedly arranged on the base 21, and the first support limiting block 22 is respectively in contact with the receiving groove and the second support limiting block 23;

[0053] The first support limiting block 22 is provided with a first installation hole 221 for installing the first sliding limiting block 25, and the second support limiting block 23 is provided with a second installation hole 231 for installing the second sliding limiting block 26. The first support limiting block 22 and the second support limiting block 23 are used to assist in fixing the third prism 7.

[0054] In the above implementation process, the first installation limiting component is provided to assist in installing and limiting the first prism 5, the second prism 6, and the third prism 7, ensuring the gluing accuracy between the prisms and improving the gluing qualified rate.

[0055] In some embodiments, the second installation limiting component includes: a third limiting block 27, a first moving guide rail 29, and a second moving guide rail 28. The third limiting block 27 is detachably connected to the base 21. The first moving guide rail 29 vertically passes through the third limiting block 27 and is detachably connected to the third limiting block 27. The second moving guide rail 28 passes through the third limiting block 27 at a first set angle and is detachably connected to the third limiting block 27;

[0056] The third limiting block is provided with a first convex limiting portion 271 and a second convex limiting portion 272. The first convex limiting portion 271 is used for installing and limiting the first prism 5. The first moving guide rail 29 is used for supporting, transferring, and placing the second prism 6. The second convex limiting portion 272 is used for installing and limiting the second prism 6. The second moving guide rail 28 is used for transferring and placing the third prism 7.

[0057] In the above implementation process, the second installation limiting component is provided to assist in installing and limiting the first prism 5, the second prism 6, and the third prism 7, ensuring the gluing accuracy between the prisms and improving the gluing yield rate.

[0058] In some embodiments, the inclined surface of the second prism 6 is provided with a first inclined groove 62 for adjusting the second prism 6 to a second set angle. The third prism 7 is provided with a second inclined groove 71 corresponding to the second moving guide rail 28.

[0059] In the above implementation process, it is convenient to install and place the second prism 6 and the third prism 7.

[0060] In some embodiments, the first set angle of the second moving guide rail 28 is consistent with the inclined angle of the inclined surface of the second prism 6.

[0061] In the above implementation process, it is convenient for gluing and positioning the second prism 6 and the third prism 7.

[0062] Specifically, please refer to Figure 1, the base 21 is fixed on the optical platform as the base of the gluing tooling, and there is a receiving groove 24 on the base 21 for receiving and supporting the prism to be glued. The shape of the receiving groove 24 matches the shape of the prism to be placed and fixed, and the size of the receiving groove 24 is slightly smaller than the first prism 5 to be placed. The purpose is to ensure that the gluing surface 51 of the first prism is higher than the plane of the receiving groove 24, facilitating subsequent gluing operations. To prevent the bottom edge from contacting the receiving groove 24 during the placement of the first prism 5, causing damage, and to avoid edge chipping of the edge due to the applied pressure during subsequent gluing, the bottom part of the receiving groove 24 is hollowed out, that is, a hollow groove 241 is provided; the first support and limit block 22 is integrated with the base 21 and is used to limit and fix the prism; the detachable second support and limit block 23 is used to limit and fix the prism and is arranged on the base 21; the first sliding limit block 25 and the second sliding limit block 26 are respectively located at appropriate positions on the first support and limit block 22 and the second support and limit block 23 and are used to fix and position the third prism 7 in two directions; the third limit block 27 can be connected to the base 21 to limit and fix the prism in another direction (the direction opposite to the first support and limit block 22); there are a first moving guide 29 and a second moving guide 28 on the third limit block 27, which are used to support, transfer, place, and align the glued prism.

[0063] Exemplarily, the prism assembly gluing and pasting process method of the embodiment of the present application: Please refer to Figure 2 , first, the first prism 5 is placed in the receiving groove 24 of the base 21 using a clamping tool, with the gluing surface 51 of the first prism facing horizontally upward. To facilitate and ensure safety, the first prism 5 is gently slid into the groove from the position without a limit block in the receiving groove 24. Since the bottom of the receiving groove 24 has been hollowed out, the bottom edge of the first prism 5 has no contact with the receiving groove 24, ensuring that the bottom edge of the first prism 5 is not damaged. The shape of the receiving groove 24 matches the first prism 5, and the two sides of the first prism 5 are completely attached to the receiving groove 24, evenly distributing the pressure received by the first prism 5 during subsequent gluing and ensuring that the first prism 5 is not damaged. Slide the first prism 5 until one side is attached to the first support and limit block 22, and the other two sides of the first prism 5 are restricted and fixed by the receiving groove 24. At this time, the three directions of the first prism 5 have been restricted and positioned. Later, the third limit block 27 is fixed to the base 21, as shown in Figure 3 , that is, the first prism 5 is completely restricted and fixed.

[0064] Exemplarily, please refer to Figure 4, install the first moving guide rail 29 onto the third limit block 27, place the second prism 6 at a suitable position on the first moving guide rail 29, and then slowly move the third limit block 27 closer to the base 21. When the movable limit block is completely in contact with the side surface of the base 21, fix it. At this time, the first prism 5 will be completely limited and fixed. Adjust the position of the first moving guide rail 29 so that the second prism 6 is directly above the gluing area of the first prism 5, that is, the gluing surface 51 of the first prism 5 is directly opposite to the gluing surface 61 of the second prism 6. At this time, apply an appropriate amount of optical glue at a specific position on the gluing surface 51 of the first prism. As Figure 4 shown, there is a certain height difference between the first moving guide rail 29 and the gluing surface 51 of the first prism 5. Now, slowly withdraw the first moving guide rail 29 from the third limit block 27 to a position where it does not interfere with the gluing operation, so that the second prism 6 slowly drops vertically. The gluing surface 61 of the second prism comes into contact with the gluing surface 51 of the first prism. The three directions of the second prism 6 are jointly positioned and restricted by the first support limit block 22, the second support limit block 23, and the third limit block 27. Please refer to Figure 5 . For the four directions of the first prism 5, they have also been fixed and limited. Therefore, with the first prism 5 as the gluing positioning reference, only the position of the prism in a single direction needs to be adjusted to complete the gluing positioning accuracy between the first prism 5 and the second prism 6. To facilitate fine-tuning the position of the second prism 6, while ensuring optical path transmission and not affecting subsequent gluing, a first inclined groove 62 at a 45° angle is provided on the gluing surface 61 of the second prism, which is convenient for fine-tuning the left and right positions of the second prism 6, and an appropriate pressure can be applied to the inclined groove part to ensure that the thickness of the optical glue on the gluing surface 61 of the first prism 5 is uniform. During the debugging process, the probability of damage to the second prism 6 is reduced, the difficulty of debugging the prism gluing positioning is greatly reduced, and at the same time, the prism gluing accuracy is improved.

[0065] Exemplarily, please refer to Figure 6, after the first prism 5 and the second prism 6 are glued and positioned, the second moving guide rail 28 is installed at the corresponding position of the third limit block 27. The second moving guide rail 28 is used to support and place the third prism 7. Since the gluing plane of the second prism 6 and the third prism 7 is not in the horizontal direction, the gluing surface 61 of the second prism 6 is an inclined plane with a certain angle to the horizontal direction. In order to facilitate the gluing and positioning of the second prism 6 and the third prism 7, a support and placement guide rail parallel to the gluing surface 61 of the second prism 6 is designed on the third limit block 27. On the premise of not affecting light transmission and the effective light passing aperture, second inclined grooves 71 are opened on two opposite side surfaces of the third prism 7, and the shape of the second inclined grooves 71 matches the shape and size of the support rod of the second moving guide rail 28. It can ensure that the second moving guide rail 28 safely moves and places the third prism 7, realizing the rapid position matching between the third prism 7 and the gluing surface 61 of the second prism 6, as Figure 7 shown.

[0066] Exemplarily, please refer to Figure 7 , the second moving guide rail 28 can support, transfer and place the third prism 7. The gluing surface of the third prism 7 is parallel to the gluing surface 61 of the second prism and has a gap, which can prevent the third prism 7 from damaging the second prism 6 during the movement and ensure the cleanliness of the two gluing surfaces. Drop optical glue at an appropriate position on the gluing surface 61 of the second prism 6, and then slowly move the second moving guide rail 28. Stop moving when one side surface of the third prism 7 is completely attached to the first support limit block 22. Move the first sliding limit block 25 and the second sliding limit block 26 to appropriate positions and then fix them. Move the first moving guide rail 29 to fit with the side surface 72 of the third prism and then fix it. Position and fix the third prism 7, and then slowly withdraw the second moving guide rail 28 from the inclined groove of the third prism 7, as Figure 8 shown.

[0067] Exemplarily, at this time, the gluing surface of the third prism 7 slowly drops and contacts the gluing surface of the second prism 6. Apply appropriate pressure to the third prism 7 to make it completely fit with the second prism 6. At this time, the four directions of the third prism 7 have been positioned and fixed. After the three prisms are completely cured, remove them from the gluing tooling, ensuring the gluing accuracy of the dichroic prism. Remove the residual glue overflowing from the side surface on the premise of not damaging the appearance of the glued prism assembly. The glued and cured dichroic prism assembly is as Figure 9 shown, which is composed of three prisms with different sizes glued together, realizing the dichroism of the incident light.

[0068] As described above, the gluing tooling (gluing device) in the embodiments of the present application is designed based on the shape of the prism gluing, which is convenient for positioning and fixing the prism in four directions, ensuring the gluing accuracy of the prism. During the entire prism gluing process, the transfer, positioning, and fixing of the prism are all completed by relying on the tooling. This avoids the accuracy errors caused by manual operation and improves the gluing accuracy of the prism. The gluing tooling is simply designed, reliable, and convenient for operation and disassembly.

[0069] The gluing tooling designed in the embodiments of the present application is convenient for operation and disassembly, and the prism is easy to be glued and positioned, improving the gluing efficiency and success rate of the prism.

[0070] Second, on the basis of the above embodiments, please refer to Figure 10 , Figure 10 which is a schematic flow chart of a method for gluing a dichroic prism assembly provided by the embodiments of the present application. For this method for gluing a dichroic prism assembly, the method includes:

[0071] 100. Place the first prism 5 in the accommodation groove 24, and fix the first prism 5 through the first support limiting block 22 and the first convex limiting part 271.

[0072] 200. Place the second prism 6 on the first moving guide rail 29, adjust the first moving guide rail 29 so that the gluing surface to be glued of the second prism 6 faces the gluing surface of the first prism 5, and apply optical glue to the gluing surface of the first prism 5.

[0073] 300. Adjust the first moving guide rail 29 to withdraw the second prism 6, so that the second prism 6 vertically drops to contact the first prism 5, and fine-tune the position through the inclined groove of the second prism 6 and apply pressure to complete the gluing of the second prism 6 and the first prism 5.

[0074] 400. Install the third prism 7 on the second moving guide rail 28, adjust the second moving guide rail 28 so that the gluing surface of the third prism 7 is parallel to the inclined surface of the second prism 6, and apply optical glue to the gluing surface of the second prism 6.

[0075] 500. Adjust the second moving guide rail 28 to withdraw the third prism 7, so that the third prism 7 fits with the second prism 6.

[0076] 600. After curing the glue layer, remove the tooling and clean the residual glue to obtain a dichroic prism assembly.

[0077] In order to ensure the pasting accuracy and optical performance of the prism assembly, the following requirements are made for the gluing process of the prism: 1. The entire operation process of gluing the prism needs to be completed in a clean room, and the environmental level requirement is at least Class 100 or even higher. 2. The color separation prism gluing tooling needs to be cleaned and wiped to prevent the dirt and dust on the gluing tooling from affecting the bonding firmness and optical performance of the prism assembly. 3. When gluing the prism, it is prohibited to directly touch the optical prism with your hands, and the operation must be completed using tooling fixtures. 4. Operators must wear rubber gloves and masks throughout the gluing process to prevent contamination of the prism assembly. 5. Before gluing the prism, use a special cleaning fluid to clean the prism to ensure the cleanliness of its gluing surface.

[0078] Furthermore, before placing the first prism 5 in the receiving groove 24 and fixing the first prism 5 by the first support stopper 22 and the first protruding stopper 271, the method further includes:

[0079] Prepare materials, clean the prism assembly, and install the gluing device to fix the prism assembly.

[0080] Furthermore, the third prism 7 is mounted on the second movable guide rail 28, and the second movable guide rail 28 is adjusted so that the bonding surface of the third prism 7 is parallel to the inclined surface of the second prism 6, including:

[0081] The side groove of the third prism 7 is connected to the second movable guide rail 28, and the second movable guide rail 28 is adjusted so that the inclination angle of the second movable guide rail 28 is consistent with the inclined surface of the second prism 6, and the second movable guide rail 28 matches the side groove of the third prism 7, so that the gluing surface of the third prism 7 is parallel to the gluing inclined surface of the second prism 6.

[0082] Furthermore, before adjusting the second movable guide rail 28 to evacuate the third prism 7 so that the third prism 7 is attached to the second prism 6, the method further includes:

[0083] Move the first sliding limit block 25 and the second sliding limit block 26 until they are engaged with the third prism 7 and then fixed, move the second movable guide rail 28 until it is in contact with the side surface 72 of the third prism and then fixed, position and fix the third prism 7, and then withdraw the second movable guide rail from the oblique groove of the third prism 7 so that the surface to be glued of the third prism 7 is parallel to the gluing surface of the second prism 6.

[0084] Further, placing the second prism 6 on the first movable guide rail 29 and adjusting the first movable guide rail 29 so that the to-be-glued surface 61 of the second prism 6 is directly opposite to the gluing surface of the first prism 5 includes:

[0085] Place the second prism 6 on the first moving guide rail 29, adjust the first moving guide rail 29, and limit the second prism 6 through the second convex limiting part 272 so that the surface 61 to be glued of the second prism faces the gluing surface of the first prism 5.

[0086] As described above, by using the gluing tooling designed in the embodiment of the present application, high-precision gluing of three prisms with different shape dimensions is achieved. During the entire gluing process, the transfer, positioning, and fixing of the prisms are all completed by the tooling, with a high degree of mechanization, avoiding errors in the gluing accuracy of the prisms caused by manual operation and ensuring the safety of the prisms during the gluing process, improving the gluing accuracy and efficiency of the prisms. The designed groove of the gluing tooling (gluing device) matches the size of the reference prism (the first prism 5), ensuring the gluing reference accuracy of the prism. The part of the tooling in contact with the bottom edge of the first prism 5 is hollowed out, avoiding the chipping of the edges caused by the pressure applied during the gluing of other prisms and ensuring the appearance quality of the prisms. The gluing tooling designed in the embodiment of the present application can limit and fix the prisms in four directions and facilitate the adjustment of the position of the prisms, ensuring that the prisms are not misaligned during the gluing process and improving the gluing accuracy of the prisms.

[0087] The above steps are not strictly executed in the order described by the numbers, and they should be understood as a whole solution.

[0088] The dichroic prism assembly gluing device provided by the embodiment of the present application can be used to execute the dichroic prism assembly gluing method provided by the above embodiment, and has corresponding functions and beneficial effects.

[0089] In several embodiments provided by the present application, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are only illustrative. For example, the flowcharts and block diagrams in the drawings show the possible architectures, functions, and operations of devices, methods, and computer program products according to multiple embodiments of the present application. In this regard, each block in the flowchart or block diagram may represent a module, a program segment, or a part of code, and the module, program segment, or part of code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than marked in the drawings. For example, two consecutive blocks can actually be executed substantially in parallel, and they can sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, and the combination of blocks in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system for performing the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

[0090] In addition, in each embodiment of the present application, the functional modules can be integrated together to form an independent part, or each module can exist alone, or two or more modules can be integrated to form an independent part.

[0091] If the above-mentioned function is implemented in the form of a software functional module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to enable an electronic device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks, or optical discs that can store program codes.

[0092] The above are only the embodiments of the present application and are not used to limit the protection scope of the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0093] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, and all should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

[0094] It should be noted that in the embodiments of the present application, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

Claims

1. A color separation prism assembly gluing device, characterized in that: include: A base is fixed on the optical platform, wherein the base is provided with a receiving groove for receiving the first prism, and a hollow groove is provided at the bottom of the receiving groove; A first installation limiter assembly, fixedly connected to the base; The second installation and limiting assembly is detachably connected to the base, and the second installation and limiting assembly and the first installation and limiting assembly are used to assist in the installation and limiting of the first prism, the second prism and the third prism.

2. The color separation prism assembly gluing device according to claim 1, characterized in that: The first installation limit block comprises: a first support limit block, a second support limit block, a first sliding limit block and a second sliding limit block, the first support limit block and the second support limit block are both fixedly arranged on the base, and the first support limit block is respectively fitted with the receiving groove and the second support limit block; The first support limit block is provided with a first mounting hole for mounting the first sliding limit block, and the second support limit block is provided with a second mounting hole for mounting the second sliding limit block. The first support limit block and the second support limit block are used to assist in fixing the third prism.

3. The color separation prism assembly gluing device according to claim 1, characterized in that: The second installation limit assembly comprises: a third limit block, a first movable guide rail and a second movable guide rail, the third limit block is detachably connected to the base, the first movable guide rail vertically passes through the third limit block and is detachably connected to the third limit block, and the second movable guide rail passes through the third limit block at a first set angle and is detachably connected to the third limit block; The third limit block is provided with a first raised limit portion and a second raised limit portion; the first raised limit portion is used to limit the installation of the first prism, the first movable guide rail is used to support, transfer and place the second prism, the second raised limit portion is used to limit the installation of the second prism, and the second movable guide rail is used to transfer and place the third prism.

4. The color separation prism assembly gluing device according to claim 3, characterized in that: The inclined surface of the second prism is provided with a first inclined groove at a second set angle for adjusting the second prism, and the third prism is provided with a second inclined groove corresponding to the second movable guide rail.

5. The color separation prism assembly gluing device according to claim 3, characterized in that: The first setting angle of the second movable guide rail is consistent with the inclination angle of the inclined surface of the second prism.

6. A method for gluing a color separation prism assembly, implemented based on the device according to any one of claims 1 to 5, characterized in that: The method comprises: Placing the first prism in the containing groove, and fixing the first prism by means of the first supporting stopper and the first protruding stopper; Placing the second prism on the first movable guide rail, adjusting the first movable guide rail so that the surface to be glued of the second prism faces the gluing surface of the first prism, and applying optical glue on the gluing surface of the first prism; Adjusting the first movable guide rail to evacuate the second prism, so that the second prism falls vertically to contact the first prism, and fine-tuning the position and applying pressure through the inclined groove of the second prism; Mounting the third prism on the second movable guide rail, adjusting the second movable guide rail so that the gluing surface of the third prism is parallel to the inclined surface of the second prism, and applying optical glue on the gluing surface of the second prism; adjusting the second movable guide rail to evacuate the third prism so that the third prism fits the second prism; After the adhesive layer is cured, the tooling is removed and the residual adhesive is cleaned to obtain a color separation prism assembly.

7. The method for gluing a color separation prism assembly according to claim 6, characterized in that: Before placing the first prism in the containing groove and fixing the first prism by the first supporting stopper and the first protruding stopper, the method further includes: Prepare materials, clean the prism assembly, and install the gluing device to fix the prism assembly.

8. The method for gluing a color separation prism assembly according to claim 6, characterized in that: The step of mounting the third prism on the second movable guide rail and adjusting the second movable guide rail so that the bonding surface of the third prism is parallel to the inclined surface of the second prism comprises: Connect the side groove of the third prism to the second movable guide rail, adjust the second movable guide rail, the inclination angle of the second movable guide rail is consistent with the inclined surface of the second prism, and the second movable guide rail matches the side groove of the third prism, so that the gluing surface of the third prism is parallel to the gluing inclined surface of the second prism.

9. The method for gluing a color separation prism assembly according to claim 6, characterized in that: Before adjusting the second movable guide rail to evacuate the third prism so that the third prism is attached to the second prism, the method further includes: Move the first sliding limit block and the second sliding limit block until they are engaged with the third prism and then fixed, move the second movable guide rail until it is in contact with the side of the third prism and then fixed, position and fix the third prism, and then withdraw the second movable guide rail from the oblique groove of the third prism so that the surface to be glued of the third prism is parallel to the gluing surface of the second prism.

10. The method for gluing a color separation prism assembly according to claim 6, characterized in that: Placing the second prism on the first movable guide rail, and adjusting the first movable guide rail so that the surface to be glued of the second prism faces the gluing surface of the first prism, comprises: The second prism is placed on the first movable guide rail, and the first movable guide rail is adjusted to limit the second prism by the second raised limiting portion so that the surface to be glued of the second prism faces the gluing surface of the first prism.

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