Pentaprism right-angle error detection auxiliary device

By combining basic modules and auxiliary detection modules, the operation steps for pentaprism right-angle error detection are simplified, enabling users with low educational backgrounds to perform right-angle error detection and improving the applicability of the device.

CN223664247UActive Publication Date: 2025-12-12HUBEI HUIJING OPTOELECTRONICS CO LTD
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Patent Information

Application Number
CN202520146723.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-22
Publication Date
2025-12-12
Estimated Expiration
2035-01-22

AI Technical Summary

Technical Problem

Existing pentaprism right-angle error detection devices are complex to operate, difficult for users with low educational levels to use, and have limited applicability.

Method used

An auxiliary device for detecting the right angle error of a pentaprism was designed, comprising a basic module and an auxiliary detection module. By combining a pointing fixing component, an adjustment component, and a scale, a simple detection of the right angle of a pentaprism can be achieved.

Benefits of technology

This allows users with limited education to easily and intuitively perform right-angle error detection on a pentaprism, thus improving the applicability of the device.

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Abstract

The utility model discloses a pentaprism right-angle error detection auxiliary device, and belongs to the technical field of pentaprism detection, the pentaprism right-angle error detection auxiliary device comprises a basic module and an auxiliary detection module, the basic module comprises a mounting assembly, an adjusting assembly is arranged on the surface of the mounting assembly, and the auxiliary detection module is arranged at one end of the mounting assembly. The auxiliary detection module comprises an auxiliary assembly arranged at one end of the installation assembly, and a pointing fixing assembly is arranged on one side of the auxiliary assembly. The auxiliary assembly can assist the adjusting assembly in angle adjustment, and the pointing fixing assembly can point to any scale on the auxiliary assembly to achieve fixation; through the arrangement of the adjusting assembly, the degree of the included angle formed by the adjusting assembly can be adjusted according to the scale pointed by the pointing fixing assembly, so that the right angle of the pentaprism can be detected, a user with low education can also use the device to detect the right angle of the pentaprism, and the applicability is improved.
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Description

Technical Field

[0001] This application relates to the field of pentaprism testing technology, and more specifically, to an auxiliary device for detecting right-angle error of a pentaprism. Background Technology

[0002] A pentaprism is a reflex mirror used in the viewfinder of an SLR camera. Its function is to correct the upside-down image on the focusing screen, ensuring that the image seen in the viewfinder is in the same orientation as the scene directly in front of the camera. This allows the operator to frame and focus correctly. When the shutter opens, the mirror flips up to allow light to pass through, and the pentaprism is opaque. During the manufacturing process of a pentaprism, error detection is usually required to ensure its accuracy, which necessitates the use of appropriate detection devices.

[0003] According to the search, Chinese patent CN220304798U discloses an auxiliary device for detecting the right angle error of a pentaprism. The device includes: a first standard plane mirror, positioned at the optical output port of a first interferometer; and a second standard plane mirror, with the angle between the second and first standard plane mirrors fixed at 90°. During detection, the light beam emitted from the first interferometer is refracted by the first standard plane mirror and the pentaprism under test before reaching the second standard plane mirror, where it is reflected back and interferes with the reference light partially reflected by the first standard plane mirror. The test result is then obtained using Huili Instruments testing software. This invention assists in achieving high-precision automated measurement of the right angle error of a pentaprism, eliminating the need for readjustment of the pentaprism's position and simplifying the operation. The angle between the first and second standard plane mirrors can be precisely measured and adjusted to 90° using another interferometer and standard plane mirror, improving measurement accuracy.

[0004] Regarding the aforementioned technologies, the applicant believes that the testing process requires instrument adjustment, making it difficult for users with low educational backgrounds to use and thus limiting its applicability. Therefore, we propose an auxiliary device for detecting the right angle error of a pentaprism. Utility Model Content

[0005] To address the aforementioned problems, this application provides an auxiliary device for detecting the right-angle error of a pentaprism, employing the following technical solution:

[0006] A pentaprism right-angle error detection auxiliary device includes a basic module and an auxiliary detection module. The basic module includes a mounting component, and an adjustment component is provided on the surface of the mounting component. The auxiliary detection module is disposed at one end of the mounting component and includes an auxiliary component disposed at one end of the mounting component. A pointing and fixing component is provided on one side of the auxiliary component and is connected to the mounting component.

[0007] By adopting the above technical solution, users with low educational backgrounds can also use this device to test the right angle of a pentaprism, thus improving its applicability.

[0008] Furthermore, the mounting assembly includes a mounting rod, one end of which is fixedly connected to a limiting block.

[0009] By adopting the above technical solution, the adjustment component can be limited.

[0010] Furthermore, the auxiliary component includes a circular piece movably connected to one end of the mounting rod, and a scale is provided on one side of the circular piece.

[0011] By adopting the above technical solution, the angle value can be observed intuitively.

[0012] Furthermore, the pointing fixing component includes a first pointer movably connected to one side of the disc, a separator ring being provided on one side of the first pointer, and a second pointer being provided on one side of the separator ring.

[0013] By adopting the above technical solution, it is possible to form an angle by pointing to different positions on the scale.

[0014] Furthermore, the pointing fixing assembly also includes an abutting threaded pin disposed on one side of the second pointer, and the abutting threaded pin passes through the second pointer, the separator ring, the first pointer and the disc and is threaded to the interior of one end of the mounting rod.

[0015] By adopting the above technical solution, the second pointer, the separator ring, the first pointer, and the disc can be fixed in contact.

[0016] Furthermore, the adjustment assembly includes a first adjustment block and a second adjustment block rotatably connected to the surface of the mounting rod, and the ends of the first adjustment block and the second adjustment block are interlocked with each other. A guide groove is provided on one side of both the first adjustment block and the second adjustment block.

[0017] By adopting the above technical solution, the pointer slot can be set to point to the scale, so as to determine the degree of the angle between the first adjustment block and the second adjustment block.

[0018] Furthermore, the basic module also includes a mounting component disposed at one end of the second adjustment block.

[0019] By adopting the above technical solution, it is easy to fix the second adjusting block.

[0020] Furthermore, the mounting assembly includes a fixing plate fixedly connected to one end of the second adjusting block, the fixing plate having a fixing pin internally threaded and the fixing pin extending to the bottom of the fixing plate.

[0021] By adopting the above technical solution, the fixing piece can be fixed, thereby fixing the second adjusting block.

[0022] In summary, this application includes the following beneficial technical effects:

[0023] (1) By pointing to the fixed component, it can be fixed by pointing to any scale on the auxiliary component. By adjusting the settings of the component, the degree of the angle formed by the adjustment component can be adjusted according to the scale pointed to by the fixed component in order to detect the right angle of the pentaprism. This allows users with low education to use this device to detect the right angle of the pentaprism, thus improving its applicability.

[0024] (2) By setting the scale, the angle value can be observed intuitively. By setting the separator ring, the first pointer and the second pointer can be separated. By setting the first pointer and the second pointer, they can point to the scale to form an angle. By setting the abutting threaded pin, the second pointer, the separator ring, the first pointer and the disc can be fixed in contact.

[0025] (3) By setting the pointing groove, it can point to the scale. By setting the fixing pin, it is easy to fix the fixing piece. By interlocking the ends of the first adjusting block and the second adjusting block, an angle can be formed between the first adjusting block and the second adjusting block. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this application;

[0027] Figure 2 This is a schematic diagram of the exploded structure of this application;

[0028] Figure 3 This is an exploded structural diagram of the auxiliary detection module of this application;

[0029] Figure 4 This is an exploded structural diagram of the basic module of this application.

[0030] Explanation of the labels in the diagram:

[0031] 100. Basic module; 110. Mounting component; 111. Mounting rod; 112. Limiting block; 120. Adjustment component; 121. First adjusting block; 122. Second adjusting block; 123. Pointing groove; 130. Placement component; 131. Fixing piece; 132. Fixing pin;

[0032] 200. Auxiliary detection module; 210. Auxiliary component; 211. Disc; 212. Scale; 220. Pointing and fixing component; 221. First pointer; 222. Separator ring; 223. Second pointer; 224. Threaded pin. Detailed Implementation

[0033] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0034] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0036] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0037] Please see Figure 1-4 A pentaprism right-angle error detection auxiliary device includes a basic module 100 and an auxiliary detection module 200. The basic module 100 includes a mounting component 110, and an adjustment component 120 is provided on the surface of the mounting component 110. The auxiliary detection module 200 is disposed at one end of the mounting component 110 and includes an auxiliary component 210 disposed at one end of the mounting component 110. A pointing and fixing component 220 is provided on one side of the auxiliary component 210 and is connected to the mounting component 110.

[0038] By setting the auxiliary component 210, the angle of the adjustment component 120 can be adjusted. By setting the pointing fixing component 220, the device can be fixed to any mark on the auxiliary component 210. By setting the adjustment component 120, the angle formed by the adjustment component can be adjusted according to the mark pointed to by the pointing fixing component 220 in order to detect the right angle of the pentaprism. This allows users with low education levels to use this device to detect the right angle of the pentaprism, thus improving its applicability.

[0039] Mounting assembly 110 includes mounting rod 111, one end of which is fixedly connected to limit block 112. Auxiliary assembly 210 includes a disc 211 movably connected to one end of mounting rod 111. A scale 212 is provided on one side of disc 211. Pointing and fixing assembly 220 includes a first pointer 221 movably connected to one side of disc 211. A separator ring 222 is provided on one side of the first pointer 221. A second pointer 223 is provided on one side of the separator ring 222. Pointing and fixing assembly 220 also includes an abutting threaded pin 224 provided on one side of the second pointer 223. The abutting threaded pin 224 passes through the second pointer 223, separator ring 222, first pointer 221 and disc 211 and is threaded to the interior of one end of mounting rod 111.

[0040] By rotating the first pointer 221 and the second pointer 223, different angles can be formed at different positions on the scale 212. By passing the abutting threaded pin 224 through the second pointer 223, the separator ring 222, the first pointer 221, and the disc 211 and threadedly connecting it to the inside of the mounting rod 111, the second pointer 223, the separator ring 222, the first pointer 221, and the disc 211 can be fixed in contact, thereby fixing the angle formed by the first pointer 221 and the second pointer 223. This makes it easy for staff to adjust the component 120 according to this angle, allowing users with low educational levels to use this device to test the right angle of the pentaprism, thus improving its applicability.

[0041] The adjustment assembly 120 includes a first adjustment block 121 and a second adjustment block 122 rotatably connected to the surface of the mounting rod 111, and the ends of the first adjustment block 121 and the second adjustment block 122 are interlocked with each other. A guide groove 123 is provided on one side of both the first adjustment block 121 and the second adjustment block 122. The base module 100 also includes a placement assembly 130 disposed at one end of the second adjustment block 122. The placement assembly 130 includes a fixing piece 131 fixedly connected to one end of the second adjustment block 122. A fixing pin 132 is threadedly connected to the inside of the fixing piece 131, and the fixing pin 132 extends to the bottom of the fixing piece 131.

[0042] By placing the second adjusting block 122 on a flat surface, and then passing the fixing pin 132 through the fixing piece 131 and extending it into the interior of the flat surface, the second adjusting block 122 can be fixed. At this time, rotating the first adjusting block 121 can adjust the angle formed between the first adjusting block 121 and the second adjusting block 122. The angle between the first adjusting block 121 and the second adjusting block 122 can be precisely adjusted according to the scale 212 through the pointing groove 123. When the angle between the first adjusting block 121 and the second adjusting block 122 is adjusted to ninety degrees, the right angle of the pentaprism can be detected.

[0043] The implementation principle of this application embodiment is as follows: When the device needs to be used, the second adjusting block 122 can first be installed on a certain plane, and then the fixing pin 132 is threaded to the inside of the fixing piece 131 and extends into the inside of the plane, thereby fixing the second adjusting block 122. Then, the first pointer 221 and the second pointer 223 can be adjusted to point to a suitable position on the scale 212 as needed, and the second pointer 223 can point to one of the pointing slots 123 located on one side of the second adjusting block 122. Then, the first pointer 221 can be rotated to point to a 90-degree position as needed. At this time, the abutting threaded pin 224 passes through the second pointer 223, the separating ring 222, the first pointer 221 and the disc 211 and is threaded. The device connects to the inside of one end of the mounting rod 111, thereby fixing the first pointer 221 and the second pointer 223 in contact, ensuring their stability. Then, the pentaprism to be tested can be placed on top of the second adjusting block 122, aligning the included angle of the pentaprism to be tested with the first adjusting block 121. Rotating the first adjusting block 121 causes another pointing groove 123 on one side of the first adjusting block 121 to rotate accordingly. When the pointing groove 123 points to the 90-degree position on the scale 212, it can be determined that the right angle of the pentaprism has no error; otherwise, an error exists. This device allows users with limited education to test the right angle of a pentaprism, improving its applicability.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pentaprism right-angle error detection auxiliary device, comprising a basic module (100) and an auxiliary detection module (200), characterized in that: The basic module (100) includes a mounting component (110), the surface of which is provided with an adjustment component (120), and the auxiliary detection module (200) is disposed at one end of the mounting component (110); The auxiliary detection module (200) includes an auxiliary component (210) disposed at one end of the mounting component (110), and a pointing and fixing component (220) is disposed on one side of the auxiliary component (210), and the pointing and fixing component (220) is connected to the mounting component (110).

2. The pentaprism right-angle error detection auxiliary device according to claim 1, characterized in that: The mounting assembly (110) includes a mounting rod (111), one end of which is fixedly connected to a limit block (112).

3. The pentaprism right-angle error detection auxiliary device according to claim 2, characterized in that: The auxiliary component (210) includes a disc (211) movably connected to one end of the mounting rod (111), and a scale (212) is provided on one side of the disc (211).

4. The pentaprism right-angle error detection auxiliary device according to claim 3, characterized in that: The pointing fixing component (220) includes a first pointer (221) movably connected to one side of the disc (211), a separator ring (222) is provided on one side of the first pointer (221), and a second pointer (223) is provided on one side of the separator ring (222).

5. The pentaprism right-angle error detection auxiliary device according to claim 4, characterized in that: The pointing fixing assembly (220) also includes an abutting threaded pin (224) disposed on one side of the second pointer (223), and the abutting threaded pin (224) passes through the second pointer (223), the separator ring (222), the first pointer (221) and the disc (211) and is threaded to the interior of one end of the mounting rod (111).

6. The pentaprism right-angle error detection auxiliary device according to claim 5, characterized in that: The adjustment assembly (120) includes a first adjustment block (121) and a second adjustment block (122) rotatably connected to the surface of the mounting rod (111), and the ends of the first adjustment block (121) and the second adjustment block (122) are interlocked with each other. A guide groove (123) is provided on one side of both the first adjustment block (121) and the second adjustment block (122).

7. The pentaprism right-angle error detection auxiliary device according to claim 6, characterized in that: The basic module (100) also includes a mounting component (130) disposed at one end of the second adjusting block (122).

8. The pentaprism right-angle error detection auxiliary device according to claim 7, characterized in that: The mounting assembly (130) includes a fixing piece (131) fixedly connected to one end of the second adjusting block (122), the fixing piece (131) having a fixing pin (132) internally threadedly connected, and the fixing pin (132) extending to the bottom of the fixing piece (131).

Citation Information

Patent Citations

  • Pentaprism right-angle error detection auxiliary device

    CN220304798U