Optical structure with switchable filter set

Abstract

This utility model relates to the field of optical component technology, specifically an optical structure with switchable filter groups. It includes a semi-open, assemblable first and second outer shells, connected at their four corners by locking bolts. A stepper motor is mounted on the inner wall of the second outer shell, with its output connected to a rotating shaft. A rotating disk is mounted on the rotating shaft. This utility model, by using semi-open, assemblable first and second outer shells connected at their four corners by locking bolts, facilitates the assembly, disassembly, and maintenance of the optical structure. The stepper motor mounted on the inner wall of the second outer shell has its output connected to a rotating shaft with a regular polygonal cross-section. A rotating disk with several uniformly spaced, equidistantly arranged filters in a ring is mounted on the rotating shaft, with the number of sides of the shaft's cross-section matching the number of filters. This allows the stepper motor to precisely drive the rotating disk, enabling filter switching.

Description

Technical Field

[0001] This utility model relates to the field of optical component technology, specifically to an optical structure with a switchable filter group. Background Technology

[0002] In ophthalmic imaging systems, the optical structure of the filter array plays a crucial role. Filters selectively transmit light of specific wavelengths, helping doctors obtain high-quality images of different tissues and structures of the eye. This is of great significance for the diagnosis, treatment monitoring, and vision research of eye diseases. In existing ophthalmic imaging systems, filter arrays are often either fixedly installed or manually replaced. Fixed-installation filters cannot be flexibly switched according to different imaging needs, while manual filter replacement is not only cumbersome and inefficient, but also prone to inaccurate filter placement due to human error, affecting image quality. Utility Model Content

[0003] The purpose of this invention is to provide an optical structure with a switchable filter group to solve the problem mentioned in the background art that existing filter groups are not easy to switch.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An optical structure with a switchable filter group includes a semi-open and assemblable first and second housings, wherein the four apex corners of the first and second housings are connected by locking bolts.

[0006] A stepper motor is installed on the inner wall of the second outer shell. The output end of the stepper motor is connected to a rotating shaft. The cross-section of the rotating shaft is a regular polygon. A rotating disk is installed on the rotating shaft. Several uniformly spaced and ring-shaped filters are installed on the edge of the rotating disk. A first lens barrel and a second lens barrel, which are coaxially arranged with one of the filters, are respectively installed on the outer walls of the first outer shell and the second outer shell. The number of sides of the rotating shaft cross-section is the same as the number of filters.

[0007] Preferably, the cross-section of the rotating shaft is a regular hexagon, the number of filters is six, and the stepper motor rotates 60° each time. The regular hexagonal rotating shaft design matches the six sets of filters, and the precise 60° rotation of the stepper motor each time ensures that one set of filters is switched each time, realizing precise and orderly switching of filters, meeting different optical needs, and improving the accuracy and efficiency of optical operation.

[0008] Preferably, the rotating disk and the rotating shaft are connected by an insertion joint and fixed by positioning bolts. The insertion joint facilitates the installation and disassembly of the rotating disk, while the positioning bolts can firmly fix the rotating disk on the rotating shaft, ensuring that the rotating disk and the rotating shaft rotate synchronously, enhancing the stability of the structure, and also facilitating the subsequent maintenance and replacement of the rotating disk.

[0009] Preferably, a limiting ring for limiting the rotation disk is installed on the inner wall of the second outer shell. The limiting ring can effectively limit the axial displacement of the rotation disk, ensuring that the rotation disk maintains a stable position during rotation, thereby ensuring the coaxiality of the filter and the lens barrel and improving the quality and stability of optical imaging.

[0010] Preferably, each set of filters is provided with a rubber ring at its edge. The rubber ring is 1-2 mm thick and has a buffering and sealing function. It can reduce vibration and wear between the filter and the rotating disk, prevent light from leaking from the edge of the filter, further improve optical performance, and ensure imaging effect.

[0011] Preferably, the filter is connected to the rotating disk by a fixing bolt passing through a rubber ring. The fixing bolt passes through the rubber ring to firmly install the filter on the rotating disk, which not only ensures the stable connection of the filter, but also provides a buffer protection function with the help of the rubber ring, thus extending the service life of the filter.

[0012] Preferably, a battery is installed in the second housing to power the stepper motor. The battery provides power to the stepper motor, enabling the optical structure to work normally without an external power source, increasing the flexibility and convenience of use, and making it suitable for a variety of different application scenarios.

[0013] Compared with existing technologies, the advantages of this utility model are as follows: In this optical structure with switchable filter groups, by setting a semi-open and assemblable first and second outer shells, and connecting them with locking bolts at the four corners, the assembly, disassembly, and maintenance of the optical structure are facilitated; a stepper motor is installed on the inner wall of the second outer shell, and its output end is connected to a rotating shaft with a regular polygonal cross-section. A rotating disk with several uniformly spaced and ring-shaped filters is installed on the rotating shaft, and the number of sides of the rotating shaft cross-section is the same as the number of filters, so that the stepper motor can accurately drive the rotating disk to rotate, realizing the switching of filters; a first lens barrel and a second lens barrel are respectively installed on the outer walls of the first and second outer shells, which are coaxially arranged with one of the filter groups, ensuring the stability of the light transmission path. Overall, the optical structure can easily switch between different filters to meet diverse optical application needs. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are explained in detail together with the embodiments of the present invention, but do not constitute a limitation thereof.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the rotating disk of this utility model;

[0018] 10. First outer casing; 11. First lens barrel; 12. Stepper motor; 13. Rotating shaft; 14. Positioning bolt; 15. Limiting ring;

[0019] 20. Second outer shell; 21. Second lens barrel;

[0020] 30. Tighten the bolts;

[0021] 40. Rotating disk; 41. Filter; 42. Rubber ring; 43. Fixing bolt;

[0022] 50. Storage battery. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be understood that the terms "center", "vertical", "horizontal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or component 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 this utility model.

[0025] Optical structures with switchable filter sets, such as Figures 1-3As shown, the system includes a semi-open and assemblable first outer shell 10 and a second outer shell 20. The four corners of the first and second outer shells 10 and 20 are connected by locking bolts 30. A stepper motor 12 is mounted on the inner wall of the second outer shell 20. The output end of the stepper motor 12 is connected to a rotating shaft 13. The rotating shaft 13 has a regular polygonal cross-section and a rotating disk 40 is mounted on it. Several uniformly spaced, ring-shaped filters 41 are mounted on the edge of the rotating disk 40. A first lens barrel 10 and a second lens barrel 21, coaxially arranged with one set of filters 41, are respectively mounted on the outer walls of the first and second outer shells 10 and 20. The number of sides of the rotating shaft 13 is the same as the number of filters 41. The semi-open and assemblable first and second outer shells 10 and 20 are configured to... The first housing 10 and the second housing 20 are connected at the four corners by locking bolts 30, which facilitates the assembly, disassembly and maintenance of the optical structure. A stepper motor 12 is installed on the inner wall of the second housing 20. The output end of the stepper motor 12 is connected to a rotating shaft 13 with a regular polygonal cross section. A rotating disk 40 with several uniformly spaced and ring-shaped filters 41 is installed on the rotating shaft 13. The number of sides of the rotating shaft 13 is the same as the number of filters 41, so that the stepper motor 12 can accurately drive the rotating disk 40 to rotate and realize the switching of filters 41. The first lens barrel 10 and the second lens barrel 21 are respectively installed on the outer walls of the first housing 10 and the second housing 20, which are coaxially arranged with one of the filters 41, to ensure the stability of the light transmission path. The whole structure makes it easy to switch different filters to meet diverse optical needs.

[0026] In this embodiment, the cross-section of the rotating shaft 13 is a regular hexagon, the number of filters 41 is six sets, and the stepper motor 12 rotates by 60° each time, so that the stepper motor 12 can accurately control the rotation angle of the rotating disk 40. Each rotation can accurately switch a set of filters 41, ensuring the accuracy and stability of filter switching.

[0027] Furthermore, the rotating disk 40 is inserted into the rotating shaft 13 and fixed by the positioning bolt 14, so that the rotating disk 40 can be firmly installed on the rotating shaft 13, and the rotating disk 40 can be easily disassembled and replaced, thus improving the convenience of optical structure maintenance and upgrading.

[0028] Specifically, a limiting ring 15 is installed on the inner wall of the second outer shell 20 to limit the rotation of the rotating disk 40. This can effectively prevent the rotating disk 40 from axially displacing during rotation, ensure the positional accuracy of the rotating disk 40 and the filter 41, and guarantee the normal operation of the optical structure.

[0029] Each filter 41 has a rubber ring 42 on its edge. The thickness of the rubber ring 42 is 1-2mm. The filter 41 is connected to the rotating disk 40 by a fixing bolt 43 passing through the rubber ring 42. The rubber ring 42 can play a role in buffering and sealing, reducing vibration and wear between the filter 41 and the rotating disk 40, and improving optical performance.

[0030] In addition, a battery 50 for powering the stepper motor 12 is installed inside the second housing 20, which enables the optical structure to work normally without an external power supply, increasing the flexibility and convenience of use.

[0031] The working principle of the optical structure with switchable filter group:

[0032] First, ensure that the battery 50 inside the second housing 20 has sufficient power to provide power support for the stepper motor 12; then assemble the first housing 10 and the second housing 20 with locking bolts 30. At this time, the first lens barrel 10 and the second lens barrel 21 are located outside the housings respectively for light transmission.

[0033] When it is necessary to switch the filter 41, the stepper motor 12 is started; the stepper motor 12 drives the rotating shaft 13 with a regular hexagonal cross section to rotate. Since the rotating shaft 13 is inserted into the rotating disk 40 and fixed by the positioning bolt 14, the rotating disk 40 rotates accordingly; the limiting ring 15 limits the rotating disk 40 to prevent its axial displacement; the stepper motor 12 rotates 60° each time, which can accurately switch a set of filters 41, making it coaxial with the first lens barrel 10 and the second lens barrel 21; the rubber ring 42 on the edge of the filter 41 plays a buffering and sealing role to ensure optical performance; by controlling the rotation of the stepper motor 12, different filters 41 can be switched as needed to meet diverse optical application requirements.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. Optical structure with switchable filter set, characterized in that: It includes a semi-open and assemblable first outer shell (10) and a second outer shell (20), and the four corners of the first outer shell (10) and the second outer shell (20) are connected by locking bolts (30); A stepper motor (12) is installed on the inner wall of the second outer shell (20). The output end of the stepper motor (12) is connected to a rotating shaft (13). The cross section of the rotating shaft (13) is a regular polygon. A rotating disk (40) is installed on the rotating shaft (13). Several uniformly spaced and ring-shaped filters (41) are installed on the edge of the rotating disk (40). A first lens barrel (11) and a second lens barrel (21) are respectively installed on the outer walls of the first outer shell (10) and the second outer shell (20) and are coaxially arranged with one of the filters (41). The number of sides of the cross section of the rotating shaft (13) is the same as the number of filters (41).

2. The optical structure with switchable filter set according to claim 1, characterized in that: The cross-section of the rotating shaft (13) is a regular hexagon, the number of filters (41) is six, and the stepper motor (12) rotates at an angle of 60° each time.

3. The optical structure with switchable filter set of claim 1, wherein: The rotating disk (40) is inserted into the rotating shaft (13) and fixed by positioning bolts (14).

4. The optical structure with switchable filter set of claim 1, wherein: The inner wall of the second outer shell (20) is equipped with a limiting ring (15) for limiting the rotation disk (40).

5. The optical structure with switchable filter set of claim 1, wherein: Each filter (41) is provided with a rubber ring (42) at its edge, and the thickness of the rubber ring (42) is 1-2 mm.

6. The optical structure with switchable filter set according to claim 5, characterized in that: The filter (41) is connected to the rotating disk (40) by a fixing bolt (43) passing through a rubber ring (42).

7. The optical structure with switchable filter set of claim 1, wherein: The second housing (20) contains a battery (50) that powers the stepper motor (12).

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