A system and method for adjusting the image tilt of a paul telescope

Abstract

The application discloses a Paul telescope image tilt adjusting system and adjusting method, which comprises a prism fixing base, a positioning base, a positioning cover plate, a positioning pin, a positioning sheet and a connecting body; the positioning base is provided with a first mounting hole matched with the edge of the prism fixing base and a supporting platform located in the first mounting hole; the positioning cover plate is provided with a prism positioning hole and a second positioning hole, and a limiting rod is penetrated from the edge of the prism positioning hole; the second positioning hole is one-to-one corresponding with the number and position of the first positioning hole, the positioning pin is inserted into the first positioning hole and the second positioning hole; and the connecting body is solid hard glue.The application has the beneficial effects that the original design structure of the prism fixing base is utilized to design the image tilt adjusting system, the image tilt of a large prism and a small prism is adjusted through the image tilt adjusting system, the image tilt index is controlled within the required range, the structure is simple, the assembly process does not need to be repeatedly adjusted, the adjusting precision is high, the cost is low, the reliability is high, and the labor cost is reduced.

Description

Technical Field

[0001] This invention belongs to the field of telescope assembly technology, and particularly relates to a Porro telescope image tilt adjustment system and adjustment method. Background Technology

[0002] A Porro telescope contains a large prism, a small prism, and a prism mount. During assembly, the large and small prisms are fixed to the prism mount. A crucial technical performance indicator in telescope assembly is image tilt, which requires adjusting the relative positions of the large and small prisms during assembly to ensure the image tilt is within the required range. Considering assembly rationality and manufacturability, a certain margin is allowed in the fit dimensions of the large and small prisms with the prism mount; otherwise, interference fits would occur during assembly, leading to batch rework or even scrapping of parts, causing significant losses to the factory. However, allowing a certain margin also means that the positions of the large and small prisms cannot be effectively positioned when assembled with the prism mount, indirectly causing the relative positions of the large and small prisms to be uncontrollable, resulting in the image tilt not meeting the requirements. The existing method for adjusting the relative position of the macroprism and microprism is as follows: First, the macroprism and microprism are initially fixed on the prism holder. At this point, the relative position of the macroprism and microprism cannot be effectively guaranteed, and the image tilt index will exceed the required range. Then, while observing the image tilt index with the aid of a calibration instrument, the relative position of the macroprism and microprism is repeatedly adjusted manually until the image tilt index is within the required range. The disadvantage is that although this adjustment method can complete the adjustment of this index, the adjustment time is long and the labor cost is high. In the process of mass production, it will seriously affect the production efficiency and restrict the production capacity. Summary of the Invention

[0003] 1. Technical problems to be solved

[0004] The existing methods for adjusting the relative positions of the macroprism and microprism involve initially fixing them to a prism mount, then repeatedly adjusting their relative positions manually while observing the image tilt index with a calibration instrument. This method is time-consuming, labor-intensive, and can severely impact production efficiency and capacity during mass production. The present invention aims to provide an image tilt adjustment system and method for Porro telescopes. Utilizing the existing design of the prism mount, an image tilt adjustment system is designed to adjust the tilt of the macroprism and microprism, controlling the image tilt index within the required range. The system is simple in structure, eliminates the need for repeated adjustments during assembly, and offers high accuracy, low cost, high reliability, and reduced labor costs.

[0005] 2. Technical Solution

[0006] To overcome the shortcomings of the existing technology and achieve the above-mentioned technical effects, the present invention adopts the following technical solution:

[0007] A Porro telescope image tilt adjustment system includes a prism mount, which has a prism mounting hole, limiting rods, an elastic pressure plate, and a first positioning hole. Two limiting rods are provided, one on each side of the prism mounting hole, and the upper ends of the two limiting rods have internal threaded holes. The elastic pressure plate is connected to the two limiting rods by screws. At least three first positioning holes are provided, distributed outside the prism mounting hole. The system further includes a positioning base, a positioning cover plate, positioning pins, positioning plates, and a connecting body. The positioning base has a first mounting hole that matches the edge of the prism mount and a support platform located within the first mounting hole.

[0008] The positioning cover plate is provided with a prism positioning hole and a second positioning hole, and the limiting rod passes through the edge of the prism positioning hole; the number and position of the second positioning hole correspond one-to-one with the first positioning hole, and the positioning pin is inserted into the first positioning hole and the second positioning hole to achieve precise positioning of the positioning cover plate and the positioning base.

[0009] The connector is a solid rigid adhesive.

[0010] Furthermore, the positioning piece consists of several groups of metal pieces, each group having a different thickness, and each positioning piece in each group having the same size and thickness, ensuring that the prism is positioned in the most central position.

[0011] Furthermore, both the base and the positioning cover are made of aged stainless steel.

[0012] Another object of the present invention is to provide a calibration method for a Porro telescope image tilt calibration system, characterized by using a Porro telescope image tilt calibration system for calibration, comprising the following steps:

[0013] The prism mounting base is assembled onto the positioning base, and the edge of the prism mounting base is fitted into the first mounting hole;

[0014] Place the prism flat on the prism mounting hole;

[0015] The positioning cover is assembled on the prism mounting base, and several positioning pins are inserted into the corresponding first and second positioning holes to complete the precise positioning of the positioning cover and the positioning base.

[0016] Insert positioning pieces of the same thickness into the gap between the prism positioning hole and the prism;

[0017] The prism is fixed by using an elastic pressure plate connected to the connecting column with screws;

[0018] Remove the positioning cover and positioning piece, and apply solid hard glue to the edge where the prism mounting base mates with the prism to fix it in place.

[0019] Furthermore, the prism is one of a large prism or a small prism.

[0020] The principle of the Porro telescope image tilt adjustment system and method provided by this invention is as follows:

[0021] Ensure that the positioning cover and positioning base are processed with precision control to ensure that the dimensions of each part are within the required tolerance range.

[0022] The positioning base and positioning cover are made of aged stainless steel. The advantages of using stainless steel are that it is corrosion-resistant and does not deform. It does not require surface protection measures such as oxidation, passivation, and painting, which can better ensure the accuracy of the parts and avoid dimensional deviations and deformation. At the same time, stainless steel has a high density, which makes the processed parts more stable and prevents the threads from stripping, thus improving the stability during assembly.

[0023] After the prism mount is assembled onto the positioning base, it is required that there be no gap or wobbling at the mating point between the first mounting hole and the prism mount. Then, place the prism flat on the prism mount. The prism only needs to be level; there are no special requirements for its position. Next, the precise positioning of the prism is achieved through the positioning cover plate, the prism mount, and the positioning pin. At this point, there may be a gap between the prism and the prism mount. Four positioning pieces of the same thickness can be inserted between the prism positioning hole and the prism to fill the gap, ensuring that the prism does not wobble. When inserting the positioning pieces, the thickness of the positioning pieces can be adjusted according to the size of the gap, but the thickness of the four positioning pieces used simultaneously must be consistent to ensure that the large prism is in the most centered position. A spring-loaded pressure plate is then used to fix the prism position. Finally, a solid hard adhesive is applied to the edge of the mating point between the prism mount and the prism. This prevents the prism position from shifting under external forces such as vibration and impact. This solid hard adhesive is characterized by its hardness, non-detachment, and ease of maintenance and disassembly, ensuring that the relative position does not shift.

[0024] 3. Beneficial effects

[0025] Compared with the prior art, the beneficial effects of the present invention are: the adjustment device has a simple and reasonable structure, is easy to use and operate, and can effectively control the relative position of the large prism and the small prism. It is convenient to assemble, has high image tilt adjustment accuracy, low cost and high reliability. Using this adjustment device can complete the rapid adjustment of image tilt index and thus save labor costs. It does not require investment in expensive adjustment equipment, thus solving the problems of long adjustment time and high labor costs. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the positioning base structure of the present invention.

[0028] Figure 2 This is a schematic diagram of the combined structure of the positioning base and the prism fixing seat of the present invention.

[0029] Figure 3 This is the present invention. Figure 2 A schematic diagram of a prism structure placed inside.

[0030] Figure 4 This is the present invention. Figure 3 A schematic diagram of the structure with the positioning cover plate inserted.

[0031] Figure 5 This is the present invention. Figure 4 A schematic diagram showing the addition of positioning plates and elastic pressure plates.

[0032] Figure 6 This is the present invention. Figure 5 A schematic diagram of the structure after removing the positioning cover and positioning piece.

[0033] In the figure: 1-prism mounting base; 2-prism mounting hole; 3-limiting rod; 4-elastic pressure plate; 5-first positioning hole; 6-screw; 7-positioning base; 8-positioning cover plate; 9-positioning pin; 10-positioning piece; 11-first mounting hole; 12-support platform; 13-prism positioning hole; 14-prism. Detailed Implementation

[0034] The technical solution of the invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the invention. Based on the embodiments of the invention, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the invention.

[0035] In the description of the invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the invention 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. Therefore, they should not be construed as limitations on the invention.

[0036] In the description of the invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the invention based on the specific circumstances.

[0037] like Figures 1 to 6 As shown, a Porro telescope image tilt adjustment system includes a prism mounting base 1. The prism mounting base 1 is provided with a prism mounting hole 2, a limiting rod 3, an elastic pressure plate 4, and a first positioning hole 5. Two limiting rods 3 are provided, respectively located on both sides of the prism mounting hole 2. The upper ends of the two limiting rods 3 are provided with internal threaded holes. The elastic pressure plate 4 is connected to the two limiting rods 3 by screws 6. At least three first positioning holes 5 are provided, which are distributed on the outside of the prism mounting hole 2. The system also includes a positioning base 7, a positioning cover plate 8, a positioning pin 9, a positioning piece 10, and a connecting body. The positioning base 7 is provided with a first mounting hole 11 that matches the edge of the prism mounting base 1 and a support platform 12 located in the first mounting hole 11.

[0038] The positioning cover plate 8 is provided with a prism positioning hole 13 and a second positioning hole, and the limiting rod 3 passes through the edge of the prism positioning hole 13; the number and position of the second positioning hole correspond one-to-one with the first positioning hole 5, and the positioning pin 9 is inserted into the first positioning hole 5 and the second positioning hole to achieve precise positioning of the positioning cover plate 8 and the positioning base 7.

[0039] The connector is a solid rigid adhesive.

[0040] The positioning piece 10 consists of several groups of metal pieces, each group of positioning pieces 10 having a different thickness. Each positioning piece 10 in each group has the same size and thickness, ensuring that the prism is positioned in the most central position.

[0041] Both the base and the positioning cover 8 are made of aged stainless steel.

[0042] Example 1

[0043] Porro telescopes have two types of prisms: large prisms and small prisms. This embodiment uses the large prism as an example to illustrate the adjustment method of the image tilt adjustment system of a Porro telescope. The adjustment principle of the small prism is exactly the same as that of the large prism.

[0044] like Figures 1 to 6 As shown, a calibration method for a Porro telescope image tilt calibration system includes the following steps:

[0045] The prism mounting base 1 is assembled on the positioning base 7, and the edge of the prism mounting base 1 is fitted into the first mounting hole 11.

[0046] Place the prism flat on the prism mounting hole 2;

[0047] The positioning cover plate 8 is assembled on the prism fixing seat 1, and several positioning pins 9 are inserted into the corresponding first positioning hole 5 and second positioning hole to complete the precise positioning of the positioning cover plate 8 and the positioning base 7.

[0048] Insert the positioning piece 10 of the same thickness into the gap between the prism positioning hole 13 and the prism;

[0049] The prism is fixed by using an elastic pressure plate 4 connected to the connecting column by screws 6;

[0050] Remove the positioning cover plate 8 and the positioning piece 10, and apply solid hard glue to the edge of the prism fixing seat 1 where it mates with the prism to fix it in place.

[0051] A prism is one of two types: a macroprism and a microprism.

[0052] The principle of the Porro telescope image tilt adjustment system and method provided by this invention is as follows:

[0053] Ensure that the positioning cover plate 8 and positioning base 7 are processed with precision control to ensure that the dimensions of each part are within the required tolerance range.

[0054] The positioning base 7 and the positioning cover plate 8 are made of aged stainless steel. The advantages of using stainless steel are that it is corrosion-resistant and does not deform. It does not require surface protection measures such as oxidation, passivation, and painting, which can better ensure the accuracy of the parts and avoid dimensional deviations and deformation. At the same time, stainless steel has a high density, so the parts processed are more stable and the threads do not strip, which improves the stability of the parts during assembly.

[0055] After the prism mounting base 1 is assembled onto the positioning base 7, it is required that there is no gap or wobbling at the mating point between the first mounting hole 11 and the prism mounting base 1. Then, place the prism flat on the prism mounting base 1. The prism only needs to be placed flat, and there are no special requirements for its position. The precise positioning of the prism is then achieved through the positioning cover plate 8, the prism fixing seat 1, and the positioning pin 9. At this time, there may be a gap between the prism and the prism fixing seat 1. Four positioning pieces 10 of the same thickness can be inserted into the gap between the prism positioning hole 13 and the prism to fill the gap and ensure that the prism does not wobble. When inserting the positioning pieces 10, the thickness of the positioning pieces 10 can be adjusted according to the size of the gap. However, it is required that the thickness of the four positioning pieces 10 used at the same time must be consistent to ensure that the position of the large prism is in the most central position. The position of the prism is then fixed by the elastic pressure plate 4. Finally, solid hard glue is applied to the edge of the mating part between the prism fixing seat 1 and the prism to prevent the position of the prism from changing when there is external interference such as vibration or impact. This solid hard glue is characterized by its hardness, non-detachment, and ease of maintenance and disassembly to ensure that the relative position does not shift.

[0056] The fixed prism assembly is directly installed onto the telescope housing.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0058] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A Porro telescope image tilt adjustment system, comprising a prism mounting base, the prism mounting base having a prism mounting hole, limiting rods, an elastic pressure plate, and first positioning holes, wherein two limiting rods are provided, each located on one side of the prism mounting hole, and the upper ends of the two limiting rods have internal threaded holes; the elastic pressure plate is connected to the two limiting rods by screws; at least three first positioning holes are provided, the at least three first positioning holes being distributed outside the prism mounting hole; characterized in that: The system also includes a positioning base, a positioning cover plate, a positioning pin, a positioning piece, and a connector; the positioning base is provided with a first mounting hole that matches the edge of the prism fixing seat and a support platform located in the first mounting hole; The positioning cover plate is provided with a prism positioning hole and a second positioning hole, and the limiting rod passes through the edge of the prism positioning hole; the number and position of the second positioning hole correspond one-to-one with the first positioning hole, and the positioning pin is inserted into the first positioning hole and the second positioning hole to achieve precise positioning of the positioning cover plate and the positioning base. The connector is a solid rigid adhesive; The positioning piece consists of several groups of metal pieces, each group having a different thickness. Within each group, the positioning pieces are of the same size and thickness, ensuring that the prism is positioned in the most central location.

2. The Porro telescope image tilt adjustment system according to claim 1, characterized in that: Both the base and the positioning cover are made of aged stainless steel.

3. A calibration method for a Porro telescope image tilt calibration system, characterized in that: Calibration using the Porro telescope image tilt adjustment system according to any one of claims 1-2 includes the following steps: The prism mounting base is assembled onto the positioning base, and the edge of the prism mounting base is fitted into the first mounting hole; Place the prism flat on the prism mounting hole; The positioning cover is assembled on the prism mounting base, and several positioning pins are inserted into the corresponding first and second positioning holes to complete the precise positioning of the positioning cover and the positioning base. Insert positioning pieces of the same thickness into the gap between the prism positioning hole and the prism; The prism is fixed by using an elastic pressure plate connected to the connecting column with screws; Remove the positioning cover and positioning piece, and apply solid hard glue to the edge where the prism mounting base mates with the prism to fix it in place.

4. The calibration method for a Porro telescope image tilt calibration system according to claim 3, characterized in that: The prism is one of a large prism or a small prism.

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