Focusing hyperspectral camera

Abstract

The utility model provides a focus-adjustable hyperspectral camera, which comprises a shell, a lens and a lens bracket, an accommodating cavity is arranged in the shell, the lens and the lens bracket are arranged in the accommodating cavity, and the lens is in threaded connection with the lens bracket; comprising a circuit board arranged in the containing cavity, the circuit board is electrically connected with an image sensor, and the image sensor is located under the lens; the camera further comprises a focusing piece, a first locking piece is arranged on the focusing piece, the focusing piece is fixedly connected with the lens through the first locking piece, and the lens is driven to rotate through the focusing piece, so that the lens moves up and down on the lens support in the optical axis direction, and focusing is achieved. According to the scheme, convenient manual focusing is realized, the lens can be protected from external damage, and focusing can be conveniently and quickly carried out, so that the use performance of the camera in various environments is improved.

Description

Technical Field

[0001] This utility model belongs to the field of hyperspectral camera technology, specifically relating to an adjustable-focus hyperspectral camera. Background Technology

[0002] In hyperspectral cameras, different wavelengths of light, when passing through a lens, experience variations in refraction angle and focal point due to differences in refractive index, resulting in variations in focal length. Generally, longer wavelengths require longer focal lengths. Therefore, focusing the lens is essential for acquiring high-quality images of different wavelengths.

[0003] In traditional manual focusing systems, the lens is typically mounted externally to the camera. While this facilitates manual operation, the external design makes the lens highly susceptible to damage from external factors such as impacts, dust contamination, and moisture corrosion, severely impacting its lifespan and image quality. Cameras with built-in lenses, while offering some protection, often present a complex focusing process requiring specialized tools and skills, increasing both operating costs and efficiency.

[0004] Therefore, how to effectively protect the lens while enabling convenient and quick focusing has become a pressing technical challenge in this field. Utility Model Content

[0005] The purpose of this invention is to provide a hyperspectral camera with adjustable focus, which aims to solve the problems of lens protection and focusing convenience in existing cameras, so as to protect the lens from external damage and make focusing convenient and quick, thereby improving the camera's performance in various environments.

[0006] This invention discloses a focusable hyperspectral camera, comprising a housing, a lens, and a lens holder. The housing has a receiving cavity, and the lens and lens holder are disposed within the receiving cavity, connected by a thread. The camera includes a circuit board disposed within the receiving cavity, on which an image sensor is electrically connected, located directly below the lens. It also includes a focusing component with a first locking element. The focusing component is fixedly connected to the lens via the first locking element. The focusing component rotates the lens, causing it to move up and down along the optical axis on the lens holder, thus achieving focusing.

[0007] By adopting the above technical solution, the lens is placed inside the housing cavity, protecting it from external impacts, dust, and other damage. Focusing is achieved simply by rotating the focusing mechanism, making operation easy and solving the problems of easily damaged external lenses and complex focusing of internal lenses. The lens is threadedly connected to the lens holder, and the focusing mechanism drives the lens to rotate, allowing it to move up and down along the optical axis. This precisely changes the distance between the lens and the image sensor, enabling accurate focusing for different wavelengths of light and improving the imaging quality of images at different wavelengths. The overall structure is simple, requiring no special complex lens design. It uses common threaded connections, focusing mechanisms, and locking components, reducing R&D and production costs and facilitating assembly and maintenance. Users can flexibly adjust the focus according to the actual application scenario and desired imaging effect, meeting shooting needs in different environments and making the camera more widely applicable in various fields such as scientific research, monitoring, and industrial inspection.

[0008] Preferably, an FPI chip is further disposed between the image sensor and the lens. The FPI chip is used for hyperspectral imaging of light of different wavelengths, and the FPI chip is electrically connected to the image sensor.

[0009] By adopting the above technical solutions, the FPI chip and lens focus work together to enable accurate imaging of light of different wavelengths, adapting to complex and diverse hyperspectral imaging needs. After processing, the hyperspectral images are richer in information, providing a wealth of materials for subsequent data mining and analysis, which is conducive to exploring the potential properties of substances. Hyperspectral cameras with integrated FPI chips stand out in the scientific research and industrial inspection markets with their powerful functions, enhancing product competitiveness.

[0010] More preferably, the focusing element is sleeved outside the lens, and the inner diameter of the focusing element is larger than the diameter of the lens.

[0011] By adopting the above technical solution, the focusing component is fitted outside the lens, and the inner diameter of the focusing component is larger than the lens diameter, allowing the lens to be easily installed by passing through the focusing component, thus reducing assembly difficulty. When the lens needs maintenance or replacement, it can also be easily removed from the focusing component, reducing operation steps and time costs, and improving the maintainability of the product.

[0012] In a further preferred embodiment, the inner wall of the focusing component is provided with a step, and a light-transmitting plate is provided on the step.

[0013] Preferably, the step abuts against the lens.

[0014] By adopting the above technical solutions, the light-transmitting plate can effectively block dust, moisture, and other impurities, preventing them from directly contacting the lens and preventing dirt, mold, or corrosion on the lens surface, thereby extending the lens's lifespan and ensuring stable image quality. When the light-transmitting plate becomes dusty or damaged, replacing it is less costly and more convenient than replacing the entire lens, making it easier to maintain normal camera operation and reducing maintenance difficulty and costs. The step on the inner wall of the focusing component abuts against the lens, providing a stable support structure for the lens. The stable lens position and reduced shaking can reduce wear between the lens and the focusing component, extending their lifespan, reducing performance degradation and maintenance costs caused by component wear, and improving the durability of the entire camera system.

[0015] More preferably, the light-transmitting sheet and the step are sealed together by a sealing element.

[0016] By adopting the above technical solution, the sealed connection effectively prevents dust, moisture, and other minute particles from entering the camera's interior through the gap between the light-transmitting plate and the step. This greatly reduces the risk of lens contamination and corrosion, ensuring the lens is always in a clean environment, maintaining high image quality, and extending the overall lifespan of the camera. The sealed connection also expands the camera's applicable scenarios, playing an important role in fields such as field monitoring and complex industrial environment detection, thereby enhancing the camera's application value.

[0017] Preferably, the housing is further provided with a second locking member, and the focusing member is fixedly connected to the housing through the second locking member. When the second locking member is loosened, the focusing member drives the lens to rotate. When the second locking member is tightened, the lens is fixed and cannot rotate.

[0018] By adopting the above technical solution, when focusing, simply loosen the second locking component and rotate the focusing component to adjust the focus. This operation is simple and solves the problems of easy damage to traditional external lenses and complicated focusing of internal lenses.

[0019] Preferably, the housing includes an upper cover and a lower cover, which together form a hollow receiving cavity, and the top of the upper cover is provided with an opening for guiding light onto the lens.

[0020] By adopting the above technical solution, the upper and lower covers combine to form a cavity, providing reliable protection for internal components such as the lens, circuit board, and image sensor, preventing them from being corroded by external impacts, dust, and moisture. The opening at the top of the upper cover precisely guides light to the lens, ensuring that the light propagates along a predetermined path and guaranteeing stable imaging. The combined structure of the upper and lower covers makes the installation and removal of internal camera components more convenient; the position and size of the opening can be precisely designed according to the optical parameters of the lens and the angle of light incidence, controlling the amount and angle of light entering the camera, reducing light loss and stray light interference, improving image clarity, contrast, and color reproduction, and enhancing the camera's optical performance.

[0021] More preferably, the focusing component has an extension portion extending from the opening of the upper cover.

[0022] By adopting the above technical solution, on the one hand, the key internal components of the camera are still effectively protected by the housing cavity, reducing the impact of external factors; on the other hand, the extension does not affect the protective performance, while providing a convenient way to adjust focus. The extension allows users to directly grasp and rotate the focusing component by hand or with tools, achieving a good balance between protection and ease of operation.

[0023] Compared with the prior art, the beneficial results of this utility model are as follows:

[0024] (1) The lens is placed in the housing cavity to effectively avoid external collisions, dust and moisture corrosion. At the same time, the design of the focusing part combined with the locking part allows for easy focusing by simply loosening the locking part and rotating the focusing part. The operation is convenient and quick, and it successfully solves the problem that traditional cameras cannot balance lens protection and focusing convenience.

[0025] (2) No special or complex lens design is required; the lens and lens holder are matched using common threaded connections, resulting in a simple combination structure for the focusing and locking components. This design not only reduces R&D costs and production difficulty but also facilitates assembly and maintenance, improving product production efficiency and market competitiveness. In contrast, some existing technologies may require complex lens designs or expensive focusing mechanisms, leading to higher costs and inconvenient maintenance.

[0026] (3) An FPI chip is placed between the image sensor and the lens, enabling hyperspectral imaging of light of different wavelengths. By adjusting the focus, the camera can achieve accurate imaging based on the characteristics of different wavelengths of light, thus improving the imaging quality of images at different wavelengths. This advantage makes the camera widely applicable in many fields such as scientific research, environmental monitoring, and industrial inspection, and compared with traditional cameras, it can meet the shooting requirements of more complex scenes and professional needs. Attached Figure Description

[0027] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and, together with the description, serve to explain the principles of the present invention. Other embodiments and many anticipated advantages of the embodiments will be readily recognized as they become better understood through reference to the following detailed description. Elements in the drawings are not necessarily to scale. The same reference numerals refer to corresponding similar parts.

[0028] Figure 1 A schematic diagram of the overall structure of a focusable hyperspectral camera according to an embodiment of the present invention is shown.

[0029] Figure 2 for Figure 1 A cross-sectional schematic diagram of AA in the middle;

[0030] Figure 3 for Figure 2 A magnified structural diagram of part A in the middle.

[0031] The meanings of the numbers in the diagram are as follows: 1. Outer shell; 101. Top cover; 1011. Opening; 1012. Extension; 102. Bottom cover; 2. Lens; 3. Lens bracket; 4. Receiving cavity; 5. Circuit board; 6. Image sensor; 7. Focusing element; 8. First locking element; 9. FPI chip; 10. Step; 11. Light transmission plate; 12. Second locking element. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0033] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] This invention proposes a hyperspectral camera with adjustable focus. Figure 1 A schematic diagram of the overall structure of a focusable hyperspectral camera according to an embodiment of the present invention is shown.

[0035] like Figure 1 and Figure 3 As shown, the adjustable-focus hyperspectral camera includes a housing 1, a lens 2, and a lens holder 3. A receiving cavity 4 is provided inside the housing 1, and the lens 2 and the lens holder 3 are disposed inside the receiving cavity 4.

[0036] In this embodiment, the lens 2 and the lens bracket 3 are connected by a thread.

[0037] The housing 1 includes an upper cover 101 and a lower cover 102, which together form a hollow receiving cavity 4. The top of the upper cover 101 is provided with an opening 1011 for guiding light onto the lens 2.

[0038] The upper cover 101 and lower cover 102 combine to form a housing cavity 4, providing reliable protection for internal components such as the lens 2, circuit board 5, and image sensor 6, preventing them from being damaged by external impacts, dust, and moisture. The opening 1011 at the top of the upper cover 101 precisely guides light to the lens 2, ensuring that the light propagates along a predetermined path and guaranteeing stable imaging. The combined structure of the upper and lower covers 102 makes the installation and removal of internal camera components more convenient; the position and size of the opening 1011 can be precisely designed according to the optical parameters of the lens 2 and the angle of light incidence, controlling the amount and angle of light entering the camera, reducing light loss and stray light interference, improving image clarity, contrast, and color reproduction, and enhancing the camera's optical performance.

[0039] like Figure 2 and Figure 3 As shown, in this embodiment, the focusing component 7 extends from the opening 1011 of the upper cover 101 with an extension portion 1012. The material and shape of the extension portion 1012 can be designed according to actual needs. On the one hand, the key internal components of the camera are still effectively protected by the housing cavity 4 of the outer shell 1, reducing the impact of external factors; on the other hand, the extension portion 1012 provides a convenient way for focusing without affecting the protective performance. The extension portion 1012 allows users to directly grasp and rotate the focusing component 7 with their hands or tools, achieving a good balance between protection and ease of operation.

[0040] Furthermore, the system also includes a circuit board 5 disposed within the receiving cavity 4, on which an image sensor 6 is electrically connected. The image sensor 6 is located directly below the lens 2. It also includes a focusing component 7 sleeved around the lens 2, the inner diameter of which is larger than the diameter of the lens 2. In this embodiment, the inner diameter of the focusing component 7 is slightly larger than the diameter of the lens 2, and the focusing part is sleeved around the lens 2. The larger inner diameter of the focusing component 7 allows the lens 2 to easily pass through the focusing component 7 for installation, reducing assembly difficulty. When the lens 2 needs maintenance or replacement, it can also be easily removed from the focusing component 7, reducing operational steps and time costs, and improving the maintainability of the product.

[0041] Preferably, the inner wall of the focusing component 7 is provided with a step 10, which abuts against the lens 2, and a light-transmitting plate 11 is provided on the step 10. The light-transmitting plate 11 can effectively block dust, moisture and other impurities, preventing them from directly contacting the lens 2, preventing dirt from getting on the surface of the lens 2, causing mold or corrosion, thereby extending the service life of the lens 2 and ensuring stable image quality; when the light-transmitting plate 11 gets dusty or is damaged, replacing the light-transmitting plate 11 is less costly and more convenient than replacing the lens 2, making it easier to maintain the normal use of the camera and reducing maintenance difficulty and cost.

[0042] In this preferred embodiment, the step 10 is integrally formed with the focusing component 7. The step 10 on the inner wall of the focusing component 7 abuts against the lens 2, providing a stable support structure for the lens 2. The stable position of the lens 2 and the reduced shaking can reduce the wear between the lens 2 and the focusing component 7, extend the service life of the lens 2 and the focusing component 7, reduce the performance degradation and maintenance costs caused by component wear, and improve the durability of the entire camera system.

[0043] Preferably, the light-transmitting plate 11 and the step 10 are sealed together by a sealing element. The sealing element includes sealant or a sealing gasket. The sealed connection effectively prevents dust, moisture, and other minute particles from entering the camera interior through the gap between the light-transmitting plate 11 and the step 10. This greatly reduces the risk of contamination and corrosion of the lens 2, ensuring that the lens 2 is always in a clean environment, maintaining high image quality, and extending the overall lifespan of the camera. The sealed connection also expands the camera's applicable scenarios, playing an important role in fields such as field monitoring and complex industrial environment detection, thereby enhancing the camera's application value.

[0044] Furthermore, such as Figure 2 and Figure 3 As shown, the focusing component 7 is equipped with a first locking component 8, which fixes the focusing component 7 to the lens 2. The housing 1 is also equipped with a second locking component 12, which fixes the focusing component 7 to the housing 1. When the second locking component 12 is tightened, the lens 2 is fixed and cannot rotate. When the second locking component 12 is loosened, the focusing component 7 drives the lens 2 to rotate, causing the lens 2 to move up and down along the optical axis on the lens support 3, thus achieving focusing.

[0045] like Figure 3 As shown, the end of the second locking member 12 abuts against the side wall of the focusing member 7, thereby fixing the focusing member 7 to the outer casing 1. In this specific embodiment, both the first locking member 8 and the second locking member 12 are configured as locking screws. During focusing, the locking screws of the outer casing 1 are loosened, i.e., the second locking member 12 is loosened, and the focusing member 7 is rotated. The focusing member 7 drives the lens 2 to rotate, causing the lens 2 to move up and down on the lens 2 holder, thereby achieving focusing of the lens 2. When the lens 2 is adjusted to a suitable position, the locking screws are tightened again to fix the focusing member 7 in place, thus completing the focusing of the camera.

[0046] Specifically, lens 2 is housed within the housing cavity 4 of outer shell 1, protecting it from external impacts, dust, and other damage. For focusing, loosening the second locking element 12 and rotating the focusing element 7 allows for easy focusing, solving the problems of easily damaged external lenses and complex focusing of internal lenses. Lens 2 is threadedly connected to lens bracket 3, and the focusing element 7 drives lens 2 to rotate, enabling it to move up and down along the optical axis. This allows for precise adjustment of the distance between lens 2 and image sensor 6, accurately focusing for different wavelengths of light and improving the imaging quality of images at different wavelengths. The overall structure is simple, requiring no special complex design for lens 2. The common threaded connection, focusing element 7, and locking element combination reduces R&D and production costs and facilitates assembly and maintenance. Users can flexibly adjust the focus according to the actual application scenario and desired imaging effect, meeting shooting needs in different environments and making the camera more widely applicable in various fields such as scientific research, monitoring, and industrial inspection.

[0047] As a preferred option, such as Figure 2 and Figure 3 As shown, an FPI chip 9 is also disposed between the image sensor 6 and the lens 2. The FPI chip 9 is used for hyperspectral imaging of light of different wavelengths and is electrically connected to the image sensor 6.

[0048] In one specific embodiment, an FPI chip 9 is disposed between the image sensor 6 and the lens 2, forming a hyperspectral camera. By adjusting the focus, different focal lengths can be used to image different wavelengths, resulting in better image quality for different wavelengths and improving adaptability. For different wavelengths of light, the FPI chip 9 and the lens 2 work together to accurately image light across all bands, adapting to complex and diverse hyperspectral imaging needs. Processed hyperspectral images contain richer information, providing abundant material for subsequent data mining and analysis, facilitating the exploration of potential material properties. The hyperspectral camera integrating the FPI chip 9, with its powerful functions, stands out in markets such as scientific research and industrial inspection, enhancing product competitiveness.

[0049] The specific embodiments of this utility model have been described above, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

[0050] In the description of this utility model, it should be understood that the terms "upper," "lower," "inner," "outer," 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 utility model 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 utility model. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The simple fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used for improvement. Any reference signs in the claims should not be construed as limiting the scope.

Claims

1. A focusable hyperspectral camera, characterized in that, The device includes a housing, a lens, and a lens holder. The housing has a receiving cavity, and the lens and lens holder are disposed within the receiving cavity. The lens and lens holder are connected by a threaded connection. Includes a circuit board disposed within the receiving cavity, wherein an image sensor is electrically connected to the circuit board and the image sensor is located directly below the lens; It also includes a focusing component, which is provided with a first locking component. The focusing component is fixedly connected to the lens through the first locking component. The focusing component drives the lens to rotate, so that the lens moves up and down along the optical axis on the lens bracket to achieve focusing.

2. The adjustable-focus hyperspectral camera according to claim 1, characterized in that, An FPI chip is also disposed between the image sensor and the lens. The FPI chip is used for hyperspectral imaging of light of different wavelengths and is electrically connected to the image sensor.

3. The adjustable-focus hyperspectral camera according to claim 1, characterized in that, The focusing component is fitted outside the lens, and the inner diameter of the focusing component is larger than the diameter of the lens.

4. The adjustable-focus hyperspectral camera according to claim 3, characterized in that, The inner wall of the focusing component is provided with a step, and a light-transmitting plate is provided on the step.

5. The adjustable-focus hyperspectral camera according to claim 4, characterized in that, The step abuts against the lens.

6. The adjustable-focus hyperspectral camera according to claim 5, characterized in that, The light-transmitting sheet and the step are sealed together by a sealing element.

7. The adjustable-focus hyperspectral camera according to claim 1, characterized in that, The housing is also provided with a second locking member. The focusing member is fixedly connected to the housing through the second locking member. When the second locking member is loosened, the focusing member drives the lens to rotate. When the second locking member is tightened, the lens is fixed and cannot rotate.

8. The adjustable-focus hyperspectral camera according to claim 1, characterized in that, The housing includes an upper cover and a lower cover, which together form a hollow receiving cavity. The top of the upper cover has an opening for guiding light onto the lens.

9. The adjustable-focus hyperspectral camera according to claim 8, characterized in that, The focusing component has an extension portion extending from the opening of the upper cover.

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