Multi-angle phase compensation plate adjusting structure

Abstract

The utility model discloses a multi-angle phase compensating plate adjusting structure which comprises a base, a pressing block detachably connected to the base and an adjusting support clamped between the base and the pressing block, a phase compensating plate is installed on the adjusting support, a first installation hole is formed in the base, a first spherical surface is arranged on the inner side wall of the first installation hole, and a second spherical surface is arranged on the inner side wall of the first installation hole. A second mounting hole is formed in the pressing block, a second spherical surface is arranged on the inner side wall of the second mounting hole, and a third spherical surface matched with the first spherical surface and the second spherical surface at the same time is arranged on the outer side wall of the adjusting support. The utility model has the advantages of high flexibility and adjustability and lower cost.

Description

Technical Field

[0001] This utility model relates to the field of projector optical path technology, and in particular to a multi-angle phase compensation plate adjustment structure. Background Technology

[0002] In the optical path design of modern projectors, LCoS (Liquid Crystal Silicon) display chips, as a reflective liquid crystal display technology, are widely used in high-end projection equipment due to their high resolution and excellent color reproduction capabilities. However, the phase deflection angle of the liquid crystal material is an unavoidable issue during the integration of LCoS display chips. This deflection angle leads to increased brightness in dark scenes, significantly reducing image contrast and impacting the user's viewing experience.

[0003] To correct the phase shift angle present in liquid crystal display (LCD) chips, a phase compensation film is typically required. The function of a phase compensation film is to counteract the phase shift caused by the liquid crystal material itself by changing the phase of light, thereby restoring the original contrast and brightness of the image. However, due to differences in manufacturing processes, liquid crystal materials often exhibit varying degrees of phase shift angle. This difference means that relying solely on a standard phase compensation film is insufficient to achieve comprehensive phase correction.

[0004] To effectively compensate for the phase deflection angle of a liquid crystal display (LCD) chip, an adjustment device must be designed to ensure a precise match between the phase compensation plate and the LCD chip. Existing adjustment structures typically only allow rotational adjustment in a single direction. This design limits the flexibility of the phase compensation plate and prevents a perfect match with the chip angle, thus hindering the optimization of optical performance.

[0005] In addition, some adjustment methods use robotic arms to first adjust the phase compensation sheet to the ideal angle before applying adhesive to fix it. While this method can achieve a certain degree of adjustment, its production cost is high, and there may be issues with consistency and reliability during the production process, making it impossible to guarantee that the optical performance of every projector will reach its optimal state.

[0006] Therefore, it is necessary to further improve and perfect the existing technology to overcome these shortcomings, and this utility model is made based on this situation. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of the prior art and provide a multi-angle phase compensation plate adjustment structure that is highly flexible, adjustable, and low in cost.

[0008] This utility model is achieved through the following technical solution:

[0009] To solve the above-mentioned technical problems, this utility model provides a multi-angle phase compensation plate adjustment structure, including a base, a pressure block detachably connected to the base, and an adjustment bracket sandwiched between the base and the pressure block. A phase compensation plate is installed on the adjustment bracket. The base is provided with a first mounting hole, and a first spherical surface is provided on the inner sidewall of the first mounting hole. The pressure block is provided with a second mounting hole, and a second spherical surface is provided on the inner sidewall of the second mounting hole. A third spherical surface is provided on the outer sidewall of the adjustment bracket, which simultaneously cooperates with the first and second spherical surfaces.

[0010] In order to further solve the technical problem to be solved by this utility model, the multi-angle phase compensation plate adjustment structure provided by this utility model has an outwardly extending adjustment handle on the side wall of the adjustment bracket.

[0011] In order to further solve the technical problems to be solved by this utility model, the multi-angle phase compensation plate adjustment structure provided by this utility model is divided into two halves, left and right, and both are fixedly installed on the base by fasteners.

[0012] In order to further solve the technical problems to be solved by this utility model, the multi-angle phase compensation plate adjustment structure provided by this utility model has a spherical extension portion extending to both sides on the side wall of the adjustment bracket.

[0013] To further address the technical problem to be solved by this utility model, in the multi-angle phase compensation plate adjustment structure provided by this utility model, the first sphere, the second sphere, and the third sphere have the same radius and are concentric.

[0014] To further address the technical problems to be solved by this utility model, this utility model provides a multi-angle phase compensation plate adjustment structure in which the phase compensation plate is installed at the center of the adjustment bracket, and the centers of the first spherical surface, the second spherical surface, and the third spherical surface are located at the center of the lens of the phase compensation plate.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] This invention relates to a multi-angle phase compensation plate adjustment structure. The structure employs a spherical contact method, enabling angle adjustment of the compensation plate in multiple directions. This design not only improves the overall stability of the structure but also makes angle adjustment of the phase compensation plate more convenient. Through simple rotation or tilting, users can quickly change the angle of the phase compensation plate, thereby achieving a perfect match with the LCoS display chip. Furthermore, this adjustment structure is simple in design and more cost-effective than robotic arm adjustment. Attached Figure Description

[0017] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is an exploded view of the present invention;

[0020] Figure 3 This is a schematic diagram of the usage state of this utility model. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] like Figures 1 to 3 As shown, this embodiment provides a multi-angle phase compensation plate adjustment structure, whose main components include a base 1, a pressure block 2 detachably connected to the base 1, and an adjustment bracket 3 sandwiched between the base 1 and the pressure block 2. A phase compensation plate 4 is mounted on the adjustment bracket 3. This structure is mainly designed for LCoS display chips in the optical path of projectors, aiming to correct the phase deflection angle in the liquid crystal display chip and improve the optical performance of the image by precisely adjusting the angle of the phase compensation plate 4.

[0023] In this embodiment, the base 1 has a first mounting hole 11, and the inner wall of the first mounting hole 11 has a first spherical surface 111. The pressure block 2 has a second mounting hole 21, and the inner wall of the second mounting hole 21 has a second spherical surface 211. The outer wall of the adjusting bracket 3 has a third spherical surface 31 that simultaneously cooperates with the first spherical surface 111 and the second spherical surface 211. The first spherical surface 111, the second spherical surface 211, and the third spherical surface 31 together form a spherical contact connection, i.e., a universal ball structure, which allows the adjusting bracket 3 to be smoothly adjusted in multiple directions, achieving flexible adjustment in multiple directions. That is, the adjusting bracket 3 and the base 1 are connected by a universal ball structure, enabling universal adjustment.

[0024] This invention employs a spherical contact structure to achieve multi-directional angle adjustment of the phase compensation piece. This design not only improves the overall stability of the structure but also makes angle adjustment of the phase compensation piece 4 more convenient. Through simple rotation or tilting, users can quickly change the angle of the phase compensation piece 4, thereby achieving perfect matching with the LCoS display chip. Furthermore, the adjustment structure of this invention is simple and cost-effective compared to robotic arm adjustment.

[0025] Preferably, to further facilitate the adjustment process, the adjustment bracket 3 is provided with an outwardly extending adjustment handle 32 on its side wall. The user can easily adjust the angle of the phase compensation plate 4 by simply holding the adjustment handle 32, which significantly improves the adjustment efficiency.

[0026] In this embodiment, the pressure block 2 is divided into two halves, 2a and 2b, which are both fixedly mounted on the base 1 by fasteners (such as screws). This design not only facilitates assembly but also ensures its stability during use through fasteners (such as screws).

[0027] Furthermore, the sidewall of the adjustment bracket 3 is provided with spherical extensions 33 extending to both sides. Specifically, the presence of the spherical extensions 33 can effectively increase the contact area of ​​the third spherical surface 31, thereby enhancing the contact stability between it and the first spherical surface 111 and the second spherical surface 211. This increased contact area can provide more uniform and reliable support when adjusting the angle of the phase compensation piece 4.

[0028] Meanwhile, the spherical extension 33 not only expands the contact area but also significantly improves the range of adjustable angles. By increasing the contact surface, users can more flexibly change the angle of the compensation piece during adjustment without worrying about adjustment difficulties or instability due to insufficient contact points. Furthermore, this extended structure reduces friction that may occur during adjustment, making the process smoother and more stable, reducing the force required for operation, and enhancing the user experience.

[0029] Typically, the first sphere 111, the second sphere 211, and the third sphere 31 have the same radius and are concentric, ensuring that the contact between each sphere remains consistent during the adjustment process, thereby effectively avoiding performance degradation caused by poor contact.

[0030] In addition, the phase compensation plate 4 is installed at the center of the adjustment bracket 3, and its position is precisely aligned with the center of the first, second and third spheres, thereby ensuring that the compensation plate can always be in the optimal position of the optical path during the adjustment process, providing the projector with high-quality imaging effect.

[0031] like Figure 3 As shown, the multi-angle phase compensation plate adjustment structure of this utility model is mainly applied to the optical path system of a projector equipped with an LCoS display chip. This projector optical path consists of several key components, including a laser light source, a lens assembly, an LCoS display chip, and a lens assembly. These components work together to achieve high-quality image projection. In this system, the phase compensation plate 4 is positioned in front of the LCoS display chip, and its main function is to correct any phase deflection angle that may occur in the liquid crystal display chip.

[0032] In this structure, users can easily make multi-angle adjustments using the adjustment handle 32, flexibly changing the angle of the phase compensation piece 4. This design not only makes the adjustment process simple but also allows for fine adjustments according to actual needs, thereby achieving a perfect match between the angle of the phase compensation piece 4 and the optimal operating angle of the LCoS display chip.

[0033] Furthermore, projectors employing this multi-angle phase compensation plate adjustment structure can flexibly adapt to different optical conditions. Whether indoors or outdoors, in bright or dim light, users can easily achieve ideal optical results through simple manual adjustments.

[0034] This invention's multi-angle phase compensation plate adjustment structure offers significant advantages over commonly used phase compensation plate adjustment schemes. Firstly, the adjustment process is more convenient, allowing users to easily perform multi-angle adjustments. This flexibility ensures that the phase compensation plate can more accurately match the angle of the LCoS display chip, thereby optimizing optical performance and providing clearer, higher-quality projection results.

[0035] Furthermore, the relatively simple structural design and small overall footprint make it ideal for use in more compact environments. This feature allows the projector to be used not only in standard settings but also effectively in space-constrained environments, enhancing its applicability and flexibility.

[0036] Compared to traditional robotic adjustment methods, this invention eliminates the need for specialized equipment or complex installation processes. This not only lowers the barrier to entry for the equipment but also offers significant cost advantages. Users can achieve precise adjustment of the phase compensation sheet with simple operation, greatly reducing time and labor costs both on the production line and in daily use.

[0037] It is worth mentioning that the multi-angle phase compensation plate adjustment structure of this utility model is not limited to the adjustment of phase compensation plates. Its design concept and structural advantages are also applicable to any adjustment involving lenses or other optical structures. This means that users can flexibly apply this technology in various optical devices, whether in projectors, microscopes, or other optical instruments, to achieve efficient adjustment and improve device performance and user experience.

Claims

1. A multi-angle phase compensation plate adjustment structure, characterized in that: The device includes a base (1), a pressure block (2) detachably connected to the base (1), and an adjustment bracket (3) sandwiched between the base (1) and the pressure block (2). A phase compensation plate (4) is installed on the adjustment bracket (3). The base (1) has a first mounting hole (11) and a first spherical surface (111) on the inner wall of the first mounting hole (11). The pressure block (2) has a second mounting hole (21) and a second spherical surface (211) on the inner wall of the second mounting hole (21). The adjustment bracket (3) has a third spherical surface (31) on the outer wall that simultaneously cooperates with the first spherical surface (111) and the second spherical surface (211).

2. The multi-angle phase compensation plate adjustment structure according to claim 1, characterized in that: The adjustment bracket (3) has an outwardly extending adjustment handle (32) on its side wall.

3. The multi-angle phase compensation plate adjustment structure according to claim 1, characterized in that: The pressure block (2) is divided into two halves (2a, 2b) on the left and right sides, and both are fixedly installed on the base (1) by fasteners.

4. The multi-angle phase compensation plate adjustment structure according to claim 1, characterized in that: The side wall of the adjustment bracket (3) is provided with a spherical extension (33) extending to both sides.

5. The multi-angle phase compensation plate adjustment structure according to claim 1, characterized in that: The first sphere (111), the second sphere (211), and the third sphere (31) have the same radius and are concentric.

6. The multi-angle phase compensation plate adjustment structure according to claim 5, characterized in that: The phase compensation plate (4) is installed at the center of the adjustment bracket (3), and the centers of the first spherical surface (111), the second spherical surface (211) and the third spherical surface (31) are located at the center of the lens of the phase compensation plate (4).

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