Spectroscopic device, augmented reality device

Abstract

The application relates to a light splitting device and an augmented reality device. The light splitting device comprises a support, a mounting frame and a plurality of bosses. The mounting frame has a frame opening. The plurality of bosses are fixed to the mounting frame. The plurality of bosses surround the frame opening, and each boss has a spacing with the frame opening. The light splitting device further comprises a light splitting assembly arranged on the mounting frame and surrounded by the plurality of bosses, and a glue line arranged on the edge of the light splitting assembly and connected to the light splitting assembly and the support. The light splitting device can eliminate local ghosting at the edge of a picture.

Description

Technical Field

[0001] This application relates to the field of optical equipment technology, and in particular to beam splitting devices and augmented reality devices. Background Technology

[0002] Augmented Reality (AR) devices achieve desired visual effects through the control of light, but issues such as ghosting and stray light severely impact image quality and user experience. Common AR devices include beam splitters, which are prone to various problems during operation that can lead to stray light issues.

[0003] The beam splitter consists of a bracket and beam splitting components. The periphery of the beam splitting components overlaps with the bracket and is fixed by adhesive bonding. Due to various process issues in the assembly and bonding of the beam splitting components, such as large installation allowances, insufficient fitting precision, and excessive pursuit of adhesive line appearance, it is difficult to accurately control the amount of adhesive during dispensing, which can easily lead to adhesive overflow and thus put additional pressure on the beam splitting film. In addition, insufficient flatness of the bearing surface can cause uneven stress on the beam splitting film.

[0004] Poor stress on the beam-splitting film can cause localized deformation and bending at the edge support points, resulting in ghosting and stray light. In addition, abnormal refraction and reflection of light incident on the adhesive lines can also produce ghosting and stray light problems. Utility Model Content

[0005] Therefore, it is necessary to provide a beam splitter or augmented reality device to address at least one of the above problems.

[0006] In a first aspect, this application provides a beam splitting device, which includes: a bracket, the bracket including a mounting frame and a plurality of protrusions, the mounting frame having a frame opening, the plurality of protrusions being fixed to the mounting frame respectively, the plurality of protrusions surrounding the frame opening, and each protrusion being spaced apart from the frame opening; a beam splitting component, disposed in the mounting frame and surrounded by the plurality of protrusions; and adhesive wire, located at the edge of the beam splitting component, and respectively connected to the beam splitting component and the bracket.

[0007] By setting a boss and leaving a gap between it and the frame opening, the boss can more accurately define the position of the beam-splitting component, avoiding the beam-splitting component from contacting an undesirable position on the mounting frame. This allows for a reduction in the size of the mounting frame, which in turn facilitates fixing the beam-splitting component to the mounting frame with less adhesive. The beam-splitting device provided in this application can effectively ensure the installation quality of the beam-splitting component and effectively solve the problem of local deformation and bending of the edge of the beam-splitting component in the beam-splitting device; when the beam-splitting device is used for imaging, it eliminates local ghosting at the edge of the image from the root cause.

[0008] In some embodiments, the mounting frame includes a first mounting strip and a second mounting strip opposite to each other along a first direction, the first mounting strip being longer than the second mounting strip.

[0009] This design simplifies the fixing method while ensuring the strength of the fixation.

[0010] In some embodiments, the mounting frame includes a third mounting strip and a fourth mounting strip opposite each other along a second direction, the second direction intersecting the first direction; along the second direction, the first mounting strip and the second mounting strip each have end regions; along the first direction, the third mounting strip and the fourth mounting strip each have other end regions; each boss is located in a corresponding end region.

[0011] This setting effectively limits the movement and helps avoid over-limiting.

[0012] In some embodiments, along the second direction, the size of the end region of the first mounting strip is 1 / 4 of the size of the first mounting strip, and the size of the end region of the second mounting strip is 1 / 4 of the size of the second mounting strip; along the first direction, the size of the end region of the third mounting strip is 1 / 3 of the size of the third mounting strip, and the size of the end region of the fourth mounting strip is 1 / 3 of the size of the fourth mounting strip.

[0013] This configuration helps to define the position of the beam splitter and helps to ensure the surface quality of the beam splitter.

[0014] In some embodiments, the two end regions of the first mounting strip are respectively provided with corresponding bosses, and the end regions of the third and fourth mounting strips away from the first mounting strip are respectively provided with corresponding bosses.

[0015] This design allows for the placement of the beam splitter with fewer protrusions, and the bracket is easier to manufacture.

[0016] In some embodiments, the boss provided on the third or fourth mounting strip has a limiting surface facing the frame opening, and the angle between the limiting surface extending along the mounting frame and the first direction is in the range of 20° to 70°.

[0017] This configuration is advantageous for adapting to beam splitters with tilted or curved edges.

[0018] In some implementations, the width of the adhesive line ranges from 0.3 mm to 0.5 mm.

[0019] With this setup, the installation strip is narrow, requiring less adhesive.

[0020] In some embodiments, the beam splitter is spaced from at least one boss, and the beam splitter covers the frame opening; the adhesive line avoids the frame opening.

[0021] This setup facilitates the placement of the beam-splitting components and ensures the surface shape; it also helps the beam-splitting device to achieve good optical performance.

[0022] Secondly, this application provides an augmented reality device, which includes the aforementioned beam splitter.

[0023] By setting up the aforementioned beam-splitting device, augmented reality devices can effectively avoid stray light problems and achieve high image quality.

[0024] In some implementations, the beam-splitting component is used to form the lens of an eyeglass.

[0025] With this setup, augmented reality devices can be wearable devices, with a compact design that can fit the user. Attached Figure Description

[0026] Figure 1 A schematic structural diagram of an ideal spectrometer;

[0027] Figure 2 for Figure 1 A schematic sectional view at section AA;

[0028] Figure 3 A schematic structural diagram of a beam-splitting device with the beam-splitting components in a deflection state;

[0029] Figure 4 A schematic structural diagram of a beam-splitting device with the beam-splitting component in an offset state;

[0030] Figure 5 for Figure 4 A schematic sectional view at section BB;

[0031] Figure 6 This is a schematic structural diagram of a beam splitting device according to one or more embodiments;

[0032] Figure 7 for Figure 6 A schematic sectional view at the CC section;

[0033] Figure 8 This is a schematic structural diagram of a bracket according to one or more embodiments;

[0034] Figure 9 This is a schematic structural block diagram of an augmented reality device according to one or more embodiments.

[0035] Explanation of reference numerals in the attached drawings: 1. Bracket; 101. Frame opening; 102. Mounting surface; 103. Limiting surface; 11. Mounting frame; 111. First mounting strip; 112. Second mounting strip; 113. Third mounting strip; 114. Fourth mounting strip; 12. Boss;

[0036] 2. Beam splitting component; 21. Beam splitting film; 22. Light-transmitting component; 3. Adhesive thread; 1000. Beam splitting device; 2000. Augmented reality equipment. Detailed Implementation

[0037] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0038] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0039] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. For example, a first mounting strip may also be referred to as a second mounting strip, and a second mounting strip may also be referred to as a first mounting strip. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this application, unless otherwise expressly specified and limited, the terms "connected," "linked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; a flexible connection or a rigid connection along at least one direction; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium, or a direct connection with an intermediate medium present; and they can also refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. The terms "installed," "set," "fixed," etc., can be broadly understood as connection. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0042] As used in this application, the terms "layer" and "region" refer to a material portion comprising a defined area and having a defined thickness. A layer can extend horizontally, vertically, and / or along a conical surface. A layer can be a region of uniform or non-uniform continuous structure, and its thickness perpendicular to the direction of extension may not exceed the thickness of the continuous structure. A layer can comprise multiple layers, which can be stacked layers or discretely extending layers. The shapes of the various regions and layers in the accompanying drawings, as well as their relative sizes and positional relationships, are merely illustrative and may deviate from actual dimensions due to manufacturing tolerances or technical limitations, and the design can be adjusted according to actual needs.

[0043] For ease of description, a spatial rectangular coordinate system XYZ is established, where the Z-axis can be parallel to the first direction and the X-axis can be parallel to the second direction.

[0044] refer to Figure 1 and Figure 2 , Figure 1 A beam-splitting device according to a comparative example of this application is shown. The beam-splitting device 1000 includes a support 1, a beam-splitting component 2, and an adhesive line 3. The adhesive line 3 is used to bond the beam-splitting component 2 to the support 1. Ideally, the beam-splitting device 1000 is positioned relative to the support 1 at a predetermined location, covering the frame opening 101 with approximately equal margins around its perimeter. The adhesive line 3 connects the support 1 and the beam-splitting component 2. The adhesive line 3 can be bonded to the outer periphery of the beam-splitting component 2 and overlaps the side of the beam-splitting component 2 facing away from the support 1. The projection of the adhesive line 3 along the Y-axis direction avoids the frame opening 101.

[0045] Ideally, the width D3 of the adhesive line 3 can be between 0.3 mm and 0.5 mm. The adhesive line 3 is annular along the XZ plane, and its width refers to the vertical dimension along the extension direction of the adhesive line 3 body.

[0046] refer to Figure 2The beam splitter 2 includes a beam splitting film 21 and a light-transmitting element 22. The beam splitting film 21 is flat and of uniform thickness. Light rays R1 near the center of the beam splitter 2 and light rays R2 near the edge of the beam splitter 2 can be incident on the beam splitter 2 in a substantially parallel manner and remain substantially parallel after exiting.

[0047] However, in actual manufacturing processes, it is difficult to guarantee the ideal state of the 1000 spectrometer. (Reference) Figure 2 The beam splitter 2 is deflected relative to the bracket 1. The clearance between the beam splitter 2 and the bracket 1, as well as between the beam splitter 2 and the frame opening 101, is uneven. For example, the upper left corner is close to the edge of the bracket 1, while the upper right corner is almost below the frame opening 101. To ensure a secure connection to the beam splitter 2, the width of the top section of the adhesive line 3 may need to be greater than 0.9mm, requiring a larger amount of adhesive during application. To ensure proper adhesive application, the width D1 of the mounting strip at the top of the bracket 1 needs to be greater than 1mm. When the beam splitter 2 is deflected at an excessive angle, the adhesive line 3 may project and overlap the frame opening 101.

[0048] refer to Figure 3 and Figure 4 The beam splitter 2 is offset relative to the bracket 1 along the Z-axis, for example, downwards, resulting in a larger distance between the top edge of the beam splitter 2 and the top edge of the bracket 1. The width of the adhesive line 3 at the top may need to be greater than 0.7mm, requiring a larger amount of adhesive during application. (Reference) Figure 5 When there is a large amount of adhesive, the pressure of the adhesive line 3 on the edge of the beam splitter 2 is high, which can deform the beam splitter film 21. Light rays R1 near the center of the beam splitter 2 and R2 near the edge of the beam splitter 2 can be incident on the beam splitter 2 approximately parallel to each other. However, after exiting, the light ray R2 near the edge of the beam splitter 2 will be deflected due to the deformation of the beam splitter film 21, intersecting with the light ray R1 near the center of the beam splitter 2, forming stray light. The adhesive line 3 may project and overlap onto the frame opening 101, thus some light rays will be affected by the adhesive line 3 and become stray light.

[0049] In addition, when the beam splitter 2 deviates from the theoretical position, it cannot correspond well to the mounting surface 102 of the mounting frame 11. If the actual bearing surface is not flat enough, it will cause uneven bearing force on the beam splitter 2, which will also cause local deformation and bending of the beam splitter 2, resulting in ghosting and stray light during use.

[0050] refer to Figure 6 In an exemplary embodiment, the beam splitting device 1000 includes a bracket 1, a beam splitting component 2, and an adhesive wire 3.

[0051] The bracket 1 may include a mounting frame 11 and a plurality of bosses 12. The mounting frame 11 may have a frame opening 101, and one side of the mounting frame 11 along the Y-axis direction may include a mounting surface 102 surrounding the frame opening 101. The mounting frame 11 may be continuously closed at its outer periphery, or it may be, for example, a semi-enclosed structure, or it may be compatible with other parts. The bosses 12 are fixed to the mounting frame 11, and the bracket 1 may be a one-piece structure. The bosses 12 are disposed on one side of the mounting frame 11 along the Y-axis direction, protruding from the mounting frame 11, and their outer peripheries may be aligned with the outer periphery of the mounting frame 11.

[0052] refer to Figure 6 Four bosses 12 can be provided. Multiple bosses 12 can surround the frame opening 101. Each boss can be spaced from the frame opening 101, and thus multiple bosses 12 can surround the mounting surface 102.

[0053] The beam splitter 2 is mounted on the mounting frame 11 and surrounded by multiple bosses 12. The bosses 12 are spaced from the frame opening 101 to ensure that the beam splitter 2 can overlap the mounting surface 102. The bosses 12 can be used to more accurately define the position of the beam splitter 2 and constrain the orientation of the beam splitter 2 along the XZ plane, avoiding the beam splitter 2 from contacting an undesirable position in the mounting frame 11.

[0054] The beam-splitting assembly 2 includes a stacked beam-splitting film 21 and a light-transmitting element 22. The beam-splitting film 21 faces the support 1. The light-transmitting element 22 can be a flat glass plate.

[0055] Combination Figure 7 As shown, exemplarily, the beam splitter 2 is spaced from at least one protrusion 12, which facilitates the placement of the beam splitter 2 and helps to avoid compressing the beam splitter film 21, thereby ensuring the surface shape of the beam splitter film 21. The beam splitter 2 can be a planar structure as a whole. The beam splitter 2 covers the frame opening 101. Due to the design of the protrusion 12, the position of the beam splitter 2 relative to the frame opening 101 is precise. The width D2 of the protrusion 12 can be smaller than the width D3 of the adhesive line 3.

[0056] By utilizing the reliable limiting effect achieved by the boss 12, the dimensions of the mounting surface 102 and the mounting frame 11 can be reduced, thereby facilitating the fixation of the beam splitter 2 to the mounting frame 11 with a smaller amount of adhesive. For example, along the Y-axis direction, the height of the boss 12 can be substantially the same as the thickness of the beam splitter 2.

[0057] Adhesive line 3 is located at the edge of beam splitter 2, connecting beam splitter 2 and bracket 1 respectively. A portion of adhesive line 3 can be located between boss 12 and beam splitter 2. During dispensing, adhesive line 3 is designed to not protrude from bracket 1 along the XZ plane. Because the position of the outer periphery of beam splitter 2 is reliable and the allowance is stable, the amount of adhesive dispensed can be reduced while ensuring the appearance and connection strength of adhesive line 3, thereby reducing adhesive overflow. Adhesive line 3 avoids the frame opening 101, which is beneficial for beam splitter 1000 to achieve good optical performance. It also avoids uneven adhesive layer thickness or excess adhesive from putting additional pressure on beam splitter 2, reducing the risk of local deformation and bending at the edge of beam splitter 2.

[0058] Combination Figure 7 As shown, parallel incident light rays remain parallel after passing through the beam splitter 2, avoiding interference from the adhesive line 3. The bracket 1 effectively ensures the installation quality of the beam splitter 2, effectively solving the problem of local deformation and bending at the edge of the beam splitter film 21 in the beam splitter 1000, thus eliminating local ghosting at the edge of the image from the root. The image formed by the beam splitter 1000 is clearer and more realistic, improving the imaging quality. Actual testing shows that, under the same display content and environmental conditions, the beam splitter 1000 using this embodiment reduces the probability of ghosting by more than 80% compared to a comparison model with manufacturing deviations. Users can obtain visual information more clearly during use, greatly enhancing the practicality of the beam splitter 1000 and the augmented reality device 2000.

[0059] The adhesive line 3 can be a continuous structure. In addition to bonding, the adhesive line 3 can also achieve sealing. The adhesive used for the adhesive line 3 can be a low-viscosity, high-bonding-strength optical adhesive. Compared to the comparative example, a precise dispensing process can be used, ensuring a neat shape for the adhesive line 3 and reducing the amount of adhesive dispensed to 60% of the original. Automated dispensing equipment can be used to precisely control the amount of adhesive, ensuring uniform application and reducing the amount by 50%.

[0060] refer to Figure 6 and Figure 8 In some embodiments, the mounting frame 11 includes a first mounting strip 111 and a second mounting strip 112 opposite each other along a first direction, which may extend along the X-axis. The mounting frame 11 may also include a third mounting strip 113 and a fourth mounting strip 114 opposite each other along a second direction, which intersects the first direction, for example, perpendicularly.

[0061] The first mounting strip 111 is longer than the second mounting strip 112, and their centers can be aligned. The third mounting strip 113 and the fourth mounting strip 114 can be tilted relative to the Z-axis. The mounting frame 11 can be approximately an isosceles trapezoidal structure. In other embodiments, it can be designed with other structures; it may also include curved mounting strips. The adhesive line 3 can be connected to the longer first mounting strip 111, which simplifies the fixing method while ensuring fixing strength.

[0062] refer to Figure 7 The width D1 of the first mounting strip 111 can range from 0.5mm to 1mm, for example, the width A can be 0.5mm or 0.6mm. The smaller width of the first mounting strip 111 reduces the amount of adhesive required. For example, when manufacturing the bracket 1, a mold is needed. A five-axis machining center can be used to refine the mold to accurately process the bracket 1, ensuring both the dimensions of each mounting strip and the position and size of the boss 12. Processing accuracy can be strictly controlled during the process, and the dimensional error of the bracket 1 can be configured to be within ±0.05mm. The width of the remaining mounting strips can be the same as the width of the first mounting strip 111. Compared to the comparative example, the allowance around the bracket 1 can be reduced to 30% to 20% of the original.

[0063] Along the second direction, the first mounting strip 111 and the second mounting strip 112 each have an end region.

[0064] The first mounting strip 111 has two first end regions α. When the first mounting strip 111 is provided with a boss 12, it can be located at the first end region α, instead of being located in the middle region. Along the second direction, the size of the first end region α of the first mounting strip 111 can be 1 / 4 of the size of the first mounting strip 111. The size of the boss 12 can be smaller than the size of the first end region α.

[0065] The second mounting strip 112 has two second end regions β. When the second mounting strip 112 is provided with a boss 12, it can be located at the second end region β instead of in the middle region. Along the second direction, the size of the second end region β of the second mounting strip 112 is 1 / 4 of the size of the second mounting strip 112. The size of the boss 12 can be smaller than the size of the second end region β.

[0066] Along the first direction, the third mounting strip 113 and the fourth mounting strip 114 each have additional end regions.

[0067] The third mounting strip 113 has two third end regions γ. When the third mounting strip 113 is provided with a boss 12, it can be located at the third end region γ instead of in the middle region. Along the first direction, the size of the third end region γ of the third mounting strip 113 is 1 / 3 of the size of the third mounting strip 113. The size of the third mounting strip 113 along the first direction can be smaller than the size of the first mounting strip 111 along the second direction.

[0068] The fourth mounting strip 114 has two fourth end regions δ. When the fourth mounting strip 114 is provided with a boss 12, it can be located at the fourth end region δ instead of in the middle region. Along the first direction, the size of the fourth end region δ of the fourth mounting strip 114 is 1 / 3 of the size of the fourth mounting strip 114. The size of the boss 12 can be smaller than the size of the third end region γ or the size of the fourth end region δ.

[0069] The mounting frame 11 has protrusions 12 at its four corners, which help to define the position of the beam splitter 2 and ensure the surface quality of the beam splitter 21. The protrusions 12 can be omitted in the middle of the four sides, which can effectively limit the beam splitter 2 and help to avoid over-limitation.

[0070] refer to Figure 6 and Figure 8 The first mounting strip 111 has corresponding bosses 12 at its two end regions, and the third mounting strip 113 and the fourth mounting strip 114 each have corresponding bosses 12 at their end regions away from the first mounting strip 111. This can define the position of the beam splitting component 2. The bosses 12 and the beam splitting component 2 can still be spaced apart to prevent the beam splitting component 2 from being offset or deflected excessively.

[0071] The bracket 1 may include only four bosses 12, which can define the position of the beam splitter 2 with fewer bosses 12, and the bracket 1 is easier to manufacture. More bosses 12 may also be added. For example, the bracket 1 is symmetrical from left to right.

[0072] Each boss 12 may be located in a corresponding end region. In other embodiments, for example, the bracket 1 includes eight bosses 12, one of which is provided in each end region. For example, the third mounting strip 113 and the fourth mounting strip 114 are each provided with two bosses 12. For example, a boss 12 is provided in the first end region α to the left of the first mounting strip 111, the second end region β to the right of the second mounting strip 112, the third end region γ above the third mounting strip 113, and the fourth end region δ below the fourth mounting strip 114.

[0073] The boss 12 provided on the third mounting strip 113 or the fourth mounting strip 114 has a limiting surface 103 facing the frame opening. (See reference) Figure 8 The limiting surface 103 of the boss 12 at the third mounting strip 113 can be perpendicular to the XZ plane and can be tilted relative to the Z-axis direction. The angle between the limiting surface 103 extending along the mounting frame 11 and the first direction ranges from 20° to 70°, for example, 30°, 40°, 50° or 60°, which is beneficial for adapting to beam splitting components 2 with inclined or curved edges. The boss 12 of the third mounting strip 113 or the fourth mounting strip 114 is not perpendicular to the boss 12 of the first mounting strip 111, which can achieve constraint on the beam splitting component 2 with fewer bosses 12.

[0074] refer to Figure 9 This application provides an augmented reality device 2000, which includes a beam splitter 1000. The beam splitter 1000 can be the beam splitter 1000 described in the previous embodiment. The augmented reality device 2000 can effectively avoid stray light problems and has high imaging quality.

[0075] The augmented reality device 2000 may include, for example, binocular glasses, and may be equipped with two beam-splitting devices 1000, which may be arranged along the X-axis. Exemplarily, the beam-splitting assembly 2 is used to form the lens. The lens may also include other optical elements. The lower part of the glasses may be adapted to fit the nose, see reference. Figure 6 The adhesive line 3 is set on the upper edge of the beam splitter 2. The augmented reality device 2000 can be a wearable device with a compact structure that can fit the user.

[0076] Binocular glasses may include a binocular support frame, and support frame 1 may be a part of the binocular support frame. For example, through multiple experiments and simulation analyses, the optimal position for mounting the beam splitter 2 on the binocular support frame was determined. During the adjustment process, factors such as the light propagation path, the optical characteristics of the beam splitter 2, and the support stability of the support structure were comprehensively considered. For instance, by changing the height, angle, and horizontal position of the beam splitter 2 on support frame 1, optical simulation software was used to simulate the propagation of light after passing through the beam splitter 1000 at different positions, finding the support structure that allows light to pass through the beam splitter 1000 uniformly and stably, and where the beam splitter 2 experiences the most uniform force. Setting the beam splitter 1000 in this optimized position can further reduce the deformation of the beam splitter 21 caused by improper support structure, effectively improving stray light problems such as ghosting and trailing shadows.

[0077] The Augmented Reality Device 2000 reduces adhesive application and overflow, preventing adverse effects on the beam splitter component 2 due to adhesive issues. Simultaneously, the optimized support and bearing structures ensure a more stable installation of the beam splitter component 2, thereby improving the overall stability and reliability of the Augmented Reality Device 2000. During long-term use, the Augmented Reality Device 2000 maintains good performance, reducing the failure rate caused by structural problems, extending its lifespan, and lowering after-sales maintenance costs.

[0078] The excellent imaging quality and stability of the augmented reality device 2000 enable the application of AR technology in more fields. For example, in fields such as medicine, education, and industrial design, where visual accuracy and device stability are extremely important, the beam splitter 1000 and augmented reality device 2000 of this application can better meet the needs, promoting the in-depth application and development of AR technology in these fields.

[0079] The technical features of the above-disclosed embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0080] In the embodiments disclosed above, unless otherwise explicitly specified and limited, the execution order of each step is not restricted. For example, they can be executed in parallel or sequentially in different orders. The sub-steps of each step can also be executed alternately. Various forms of processes described above can be used, and steps can be reordered, added, or deleted, as long as the desired result of the technical solution provided in this application can be achieved, and this application does not impose any restrictions here.

[0081] The embodiments disclosed above merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of patent protection of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of patent protection claimed by this application. Therefore, the scope of patent protection of this application should be determined by the appended claims.

Claims

1. A spectrophotometer, characterized in that, include: The bracket includes a mounting frame and a plurality of protrusions. The mounting frame has a frame opening, and the plurality of protrusions are respectively fixed to the mounting frame. The plurality of protrusions surround the frame opening, and each of the protrusions is spaced apart from the frame opening. A beam-splitting component, disposed within the mounting frame and surrounded by the plurality of protrusions; and The adhesive wire is located at the edge of the beam splitter and is connected to the beam splitter and the bracket, respectively.

2. The spectrophotometer according to claim 1, characterized in that, The mounting frame includes a first mounting strip and a second mounting strip that are opposite each other along a first direction, wherein the first mounting strip is longer than the second mounting strip.

3. The spectrophotometer according to claim 2, characterized in that, The mounting frame includes a third mounting strip and a fourth mounting strip that are opposite each other along a second direction, the second direction intersecting the first direction; Along the second direction, the first mounting strip and the second mounting strip each have end regions; along the first direction, the third mounting strip and the fourth mounting strip each have additional end regions. Each of the aforementioned bosses is located in the corresponding end region.

4. The spectrophotometer according to claim 3, characterized in that, Along the second direction, the size of the end region of the first mounting strip is 1 / 4 of the size of the first mounting strip, and the size of the end region of the second mounting strip is 1 / 4 of the size of the second mounting strip; Along the first direction, the size of the end region of the third mounting strip is 1 / 3 of the size of the third mounting strip, and the size of the end region of the fourth mounting strip is 1 / 3 of the size of the fourth mounting strip.

5. The spectrophotometer according to claim 3, characterized in that, The first mounting strip has corresponding bosses at its two end regions, and the third and fourth mounting strips each have corresponding bosses at their end regions away from the first mounting strip.

6. The spectrophotometer according to claim 3, characterized in that, The boss on the third or fourth mounting strip has a limiting surface facing the frame opening, and the angle between the limiting surface extending along the mounting frame and the first direction is in the range of 20° to 70°.

7. The spectrophotometer according to claim 2, characterized in that, The width of the adhesive line ranges from 0.3 mm to 0.5 mm.

8. The spectrophotometer according to claim 1, characterized in that, The beam splitter is spaced from at least one boss, and the beam splitter covers the frame opening; the adhesive line avoids the frame opening.

9. An augmented reality device, characterized in that, Includes the spectrophotometer as described in any one of claims 1 to 8.

10. The augmented reality device according to claim 9, characterized in that, The beam splitter is used to form the lens of an eyeglass.

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