Underwater high-speed camera system capable of automatically focusing

Abstract

The utility model discloses a high-speed camera system capable of automatically focusing underwater. The high-speed camera system comprises a protection cavity; the electric lens is installed in a cavity body of the protection cavity, and an underwater light supplementing device is arranged on the side of the high-speed camera; the adjusting assembly comprises a first high-precision stepping motor and a first high-precision gear, and the electric lens is provided with a focusing ring meshed with the first high-precision gear. According to the structure, space utilization is optimized, the protection cavity structure is ingeniously designed, the stability and safety of the device in the underwater environment are guaranteed, and underwater pressure and water flow impact are effectively resisted; according to the system, the electric lens and the high-speed camera are integrated for cooperation, so that the system can achieve remote automatic focusing underwater, the shooting definition and accuracy are greatly improved, meanwhile, the underwater light supplementing equipment is arranged, the problem that the night vision effect is poor due to insufficient underwater optical fibers is solved, and the shooting flexibility is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of underwater high-speed photography, in particular to an underwater high-speed photography system capable of automatically adjusting focus. Background Art

[0002] Under the existing technical framework, high-speed camera systems are widely used in scientific research analysis, industrial manufacturing, scientific research, and automobile testing. However, their application in underwater environments faces significant challenges. The main technical bottlenecks focus on three aspects: insufficient waterproof performance, limited night vision capabilities, and the lack of underwater remote autofocus function. Specifically, the underwater light environment is complex, especially the rapid attenuation of light in deep waters, making it difficult for traditional high-speed camera systems to effectively capture sufficient light, which in turn causes poor night vision and greatly reduces the clarity of the captured images. In addition, underwater shooting targets are often in a dynamic state, and the distance and angle are difficult to accurately control. In addition, the traditional system lacks an efficient autofocus mechanism, which makes it difficult to capture underwater targets, especially high-speed moving targets, clearly and accurately. The above problems seriously restrict the application scope and efficiency of underwater high-speed camera systems, and urgently need technological innovation to make breakthroughs. To this end, we provide an underwater high-speed camera system with automatic focusing to solve the above problems. Utility Model Content

[0003] In view of the problems existing in the above-mentioned prior art, the utility model provides an underwater high-speed camera system with automatic focusing, which cleverly designs a protective cavity structure, an efficient electric lens and automatic focusing mechanism, advanced semiconductor laser fill light technology and a stable adjustment component configuration, effectively solving the shortcomings of the prior art in underwater applications and achieving stable and clear shooting of high-speed moving targets underwater.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts an underwater high-speed camera system with automatic focusing, comprising:

[0005] The protective cavity is in a strip-shaped structure, with a front cover and a rear cover at both ends. The front cover is provided with a pressure-resistant and highly transparent glass window, and the rear cover is provided with a sealed aviation plug for connecting the cables inside and outside the protective cavity through a watertight cable assembly. A cavity side panel is connected between the front cover and the rear cover;

[0006] An electric lens, wherein the electric lens is installed in the cavity of the protective cavity and the pressure-resistant high-transmittance glass window is located on the shooting path of the electric lens, a high-speed camera is connected to the other side of the electric lens and the electric lens is used in conjunction with the high-speed camera, and an underwater fill light device is provided on the side of the high-speed camera;

[0007] An adjustment component includes a first high-precision stepper motor installed on the other side of the electric lens and a first high-precision gear installed on the output shaft of the first high-precision stepper motor. The electric lens is provided with a focus ring meshing with the first high-precision gear. The first high-precision stepper motor is connected to the control module through a wire and receives a control signal from the control module.

[0008] The above structure optimizes space utilization and ensures the stability and safety of the utility model in underwater environment by cleverly designing the protective cavity structure, effectively resisting underwater pressure and water flow impact; the integration of electric lens and high-speed camera enables the system to achieve remote automatic focusing underwater, greatly improving the shooting clarity and accuracy. At the same time, the equipped underwater fill light equipment solves the problem of poor night vision caused by insufficient underwater optical fiber and increases the flexibility of shooting.

[0009] As a further optimization of the above scheme, the underwater fill light equipment includes a semiconductor laser, a transmission optical fiber and a laser lens. The transmission optical fiber connects the semiconductor laser and the laser lens. The transmission optical fiber is connected to the laser lens by an FC port, and the shooting area is located on the laser path of the laser lens. The output wavelength of the semiconductor laser is 525nm. The above structure uses a semiconductor laser as a light source and outputs green light with a wavelength of 525nm. It is suitable for underwater environments and effectively improves the shooting brightness. At the same time, the transmission optical fiber is connected by a standard FC port to ensure stable optical fiber transmission and uniform fill light effect.

[0010] As a further optimization of the above solution, both ends of the cavity side plate are pressure-sealed by fluororubber O-rings, which fully utilize the good water resistance and sealing properties of the fluororubber O-rings to ensure the waterproof performance of the protective cavity, effectively prevent underwater water seepage, and protect internal electronic equipment from damage.

[0011] As a further optimization of the above solution, the sealed aerial plug includes a fan power supply aerial plug, an IO aerial plug, a network aerial plug and a power supply aerial plug. Through diversified configurations, it can meet the system's diversified power supply, signal transmission and control requirements. At the same time, each aerial plug is independently designed to ensure that when a part of the system fails, other parts can still work normally.

[0012] As a further optimization of the above scheme, the adjustment component also includes two fixing parts corresponding to the positions, the fixing parts are fixed to the protective cavity by bolts, a guide column is connected between the two fixing parts, a first motor bracket is installed on the guide column, the first high-precision stepper motor is fixed on the first motor bracket, a second motor bracket arranged parallel to the first motor bracket is also installed on the guide column, the second high-precision stepper motor is installed on the second motor bracket, a second high-precision gear is connected to the output shaft of the second high-precision stepper motor, and a zoom ring meshing with the second high-precision gear is provided on the electric lens.

[0013] The above structure cleverly uses a dual motor bracket design combined with a precision gear transmission mechanism to achieve precise adjustment and control of the lens position. To ensure the stability of the adjustment components under high-speed operation, a stable guide column and motor bracket structure are designed to effectively curb vibration and offset. Among them, the first motor bracket and the second motor bracket are arranged in parallel, which effectively disperses the mechanical stress and enhances the overall stability of the system.

[0014] In addition, a second high-precision stepper motor is introduced, which drives the zoom ring through precise cooperation with the second precision gear, realizing the remote zoom function of the lens. It effectively improves the flexibility and adaptability of shooting, allowing the system to make instant and accurate adjustments according to the size and distance of the shooting target, thereby ensuring the best effect of the captured image, and meeting the high standard requirements for accuracy and flexibility of underwater high-speed photography.

[0015] The utility model discloses an underwater high-speed camera system capable of automatic focusing, which has the following beneficial effects:

[0016] 1. The utility model is an underwater high-speed camera system with automatic focusing, which optimizes space utilization and ensures the stability and safety of the utility model in underwater environment through the clever design of the protective cavity structure, and effectively resists underwater pressure and water flow impact; the integrated electric lens and high-speed camera enable the system to achieve remote automatic focusing underwater, greatly improving the shooting clarity and accuracy. At the same time, the equipped underwater fill light equipment solves the problem of poor night vision caused by insufficient underwater optical fiber and increases the flexibility of shooting.

[0017] 2. The utility model is an underwater high-speed camera system with automatic focusing. It adopts a semiconductor laser as a light source and outputs green light with a wavelength of 525nm. It is suitable for underwater environments and effectively improves the shooting brightness. At the same time, the transmission optical fiber adopts a standard FC port connection to ensure stable optical fiber transmission and uniform fill light effect.

[0018] 3. The utility model provides an underwater automatic focusing high-speed camera system, which fully utilizes the good water resistance and sealing properties of the fluororubber O-ring to ensure the waterproof performance of the protective cavity, effectively prevent underwater water seepage, and protect the internal electronic equipment from damage.

[0019] 4. The utility model is an underwater high-speed camera system with automatic focusing, which cleverly uses a dual motor bracket design and combines a precision gear transmission mechanism to achieve precise adjustment and control of the lens position. In order to ensure the stability of the adjustment component under high-speed operation, a stable guide column and motor bracket structure are designed to effectively curb vibration and deviation. Among them, the first motor bracket and the second motor bracket are arranged in parallel, thereby effectively dispersing mechanical stress and enhancing the overall stability of the system.

[0020] With reference to the following description and drawings, a specific embodiment of the present invention is disclosed in detail, indicating the manner in which the principle of the present invention can be adopted. It should be understood that the scope of the embodiment of the present invention is not limited thereby, and the embodiment of the present invention includes many changes, modifications and equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an underwater high-speed camera system capable of automatic focusing;

[0022] Figure 2 It is a structural schematic diagram of the electric lens in the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the sealed aviation plug in the utility model;

[0024] Figure 4 It is a structural schematic diagram of the underwater supplementary light device in the utility model;

[0025] Figure 5 It is a structural schematic diagram of the adjustment component in the utility model.

[0026] In the figure: 1. protective cavity; 11. front cover; 111. pressure-resistant and high-transmittance glass window; 12. back cover; 121. sealed aviation plug; 122. watertight cable assembly; 13. cavity side panel; 2. electric lens; 21. high-speed camera; 22. focus ring; 23. zoom ring; 3. underwater fill light equipment; 31. semiconductor laser; 32. transmission optical fiber; 33. laser lens; 4. adjustment assembly; 41. first high-precision stepper motor; 42. first high-precision gear; 43. fixing piece; 44. guide column; 45. first motor bracket; 46. second motor bracket; 47. second high-precision stepper motor; 48. second high-precision gear; 5. control module; 6. fluororubber O-ring. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the scope of the utility model.

[0028] It should be noted that when an element is referred to as being "disposed on, provided with" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected, connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. "Fixed connection" means a fixed connection. There are many ways of fixed connection, which are not within the scope of protection of this article. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only and do not represent the only implementation method.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art of the present invention. The terms used in the specification are only for the purpose of describing specific implementations and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] Please refer to the instruction manual Figure 1-5 The utility model provides a first embodiment of an underwater high-speed camera system capable of automatic focusing. The overall structure of the system mainly includes the following components:

[0031] The protective cavity 1 is designed in a strip structure, with a front cover 11 and a rear cover 12 at both ends. The front cover 11 has a built-in pressure-resistant and highly transparent glass window 111 to ensure the quality of the camera while withstanding the underwater pressure. The rear cover 12 is equipped with a sealed aviation plug 121, and the cables inside and outside the protective cavity 1 are safely connected through a watertight cable assembly 122. The front cover 11 and the rear cover 12 are firmly connected through the cavity side plate 13 to form a sealed cavity.

[0032] Electric lens 2 and high-speed camera 21: The electric lens 2 is installed inside the protective cavity 1, and its shooting path faces the pressure-resistant high-transmittance glass window 111. The other side of the electric lens 2 is connected to the high-speed camera 21, and the two work together to realize the underwater automatic focusing function of the lens. In addition, the side of the system is also equipped with underwater fill light equipment 3 to deal with insufficient light underwater.

[0033] It should be noted that, in this embodiment, a switch module, a serial port module, a control module 5 and a voltage-stabilized power supply are also installed in the protective cavity 1 .

[0034] On the basis of the above components, the utility model also makes the following improvements:

[0035] The electric lens 2 and the focusing mechanism. In this embodiment, the electric lens 2 is controlled by a precise adjustment component 4, which includes a first high-precision motor and a first high-precision gear 42 driven by the motor. The electric lens 2 is provided with a focus ring 22 engaged with the first high-precision gear 42. The first high-precision stepper motor 41 receives a signal from the control module 5 to achieve precise rotation of the focus ring 22, thereby completing the automatic focusing of the electric lens 2.

[0036] Underwater fill-light device 3. In this embodiment, the underwater fill-light device 3 integrates a semiconductor laser 31, a transmission optical fiber 32 and a laser lens 33. The semiconductor laser 31 emits green light with a wavelength of 525nm, which is transmitted to the laser lens 33 through the transmission optical fiber 32 of the standard FC port, providing sufficient light source for the shooting area, effectively solving the problem of poor night vision caused by insufficient underwater optical fiber.

[0037] It should be noted that the laser diode in the semiconductor laser 31 adopts a GaN material system, and the required wavelength is obtained by doping different elements.

[0038] Waterproof and sealing measures: both ends of the side panels of the above-mentioned protective cavity 1 are sealed with fluororubber O-rings 6 for pressure resistance to ensure the waterproof performance of the protective cavity 1 underwater. The sealed aviation plug 121 includes a fan power supply aviation plug, an IO aviation plug, a network aviation plug and a power supply aviation plug to meet the system's diverse power supply and signal transmission needs, while enhancing the independence and reliability of the system.

[0039] It should be noted that the above-mentioned aviation plugs are all connected via a watertight cable assembly 122 .

[0040] Dual motor bracket design. In this embodiment, the adjustment component 4 further optimizes the motor bracket structure and adopts a dual motor bracket design. Specifically, the adjustment component 4 also includes two corresponding fixing parts 43, and the fixing parts 43 are fixed to the protective cavity 1 by bolts. A guide column 44 is connected between the two fixing parts 43. The first motor bracket 45 is fixed on the guide column 44 and is installed with a first high-precision stepper motor 41; the second motor bracket 46 is arranged in parallel with the first motor bracket 45, and is matched with a second high-precision stepper motor 47. The second high-precision stepper motor 47 engages with the zoom ring 23 of the electric lens 2 through the second high-precision gear 48 on its output shaft to realize the remote zoom function of the lens, which effectively enhances the overall stability of the system and improves the flexibility and adaptability of shooting.

[0041] The present embodiment provides an underwater high-speed camera system with automatic focusing, and the working process is as follows:

[0042] S1. System startup and initialization:

[0043] System power supply: Through the power supply aviation plug in the sealed aviation plug 121, the external power supply is introduced into the voltage-stabilized power supply module in the protective cavity 1 using the watertight cable assembly 122, providing a stable and reliable power supply for the entire system.

[0044] Module self-check: After the system is started, the control module 5 first performs a self-check, including checking the connection status and functional integrity of the switch module, serial port module, high-speed camera 21, electric lens 2 and underwater fill light device 3 to ensure that all components are in normal working condition.

[0045] S2. Preparation for underwater shooting

[0046] Check the sealing of the protective cavity 1: The system detects the sealing status of the protective cavity 1 through the built-in sensor to ensure that the fluororubber O-ring 6 is well sealed to prevent underwater seepage from affecting system performance.

[0047] Preheating of the fill light equipment: The semiconductor laser 31 starts to preheat. After reaching a stable working state, the green light with a wavelength of 525nm is transmitted to the laser lens 33 through the transmission optical fiber 32, providing sufficient light source for the shooting area and improving the situation of insufficient light underwater.

[0048] S3. Shooting and auto focus

[0049] Target capture: The high-speed camera captures the underwater target image through the pressure-resistant and high-transmittance glass window 111, and the image data is transmitted to the control module 5 for processing.

[0050] Autofocus control: The control module 5 sends a control signal to the first high-precision stepper motor 41 according to the image analysis result. After receiving the signal, the first high-precision stepper motor 41 drives the first high-precision gear 42 on its output shaft to rotate, thereby driving the focus ring 22 on the electric lens 2 to perform precise adjustment to realize the autofocus function of the lens.

[0051] Zoom adjustment (if equipped): If the shooting range needs to be further adjusted, the control module 5 can send a signal to the second high-precision stepper motor 47 to drive the second high-precision gear 48 on its output shaft to rotate and engage with the zoom ring 23 on the electric lens 2 to realize the remote zoom function of the lens and enhance the flexibility and adaptability of shooting.

[0052] S4. Data transmission and storage

[0053] Real-time transmission: The captured image data is transmitted in real time to the water control console or remote monitoring center through the serial port module and the switch module via the watertight cable assembly 122 to achieve remote monitoring and real-time analysis.

[0054] Data storage: At the same time, the image data can also be stored in a storage device in the protective cavity 1 for subsequent analysis and processing.

[0055] In summary, the utility model realizes the automatic focusing and clear shooting functions of the underwater high-speed camera system through precise structural design and technical optimization, while overcoming the shortcomings of the traditional underwater shooting system in terms of waterproofing, night vision and remote focusing, and provides strong technical support for the field of underwater photography.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An underwater high-speed camera system with automatic focusing, characterized in that: include: A protective cavity (1), the protective cavity (1) being in a strip-shaped structure, the two ends of the protective cavity (1) being respectively a front cover (11) and a rear cover (12), the front cover (11) being provided with a pressure-resistant high-transmittance glass window (111), the rear cover (12) being provided with a sealed aviation plug (121) for connecting cables inside and outside the protective cavity (1) via a watertight cable assembly (122), and a cavity side plate (13) being connected between the front cover (11) and the rear cover (12); An electric lens (2), wherein the electric lens (2) is installed in the cavity of the protective cavity (1) and the pressure-resistant high-transmittance glass window (111) is located on the shooting path of the electric lens (2); a high-speed camera (21) is connected to the other side of the electric lens (2) and the electric lens (2) is used in conjunction with the high-speed camera (21); and an underwater fill light device (3) is provided on the side of the high-speed camera (21); An adjustment component (4), the adjustment component (4) comprising a first high-precision stepping motor (41) mounted on the other side of the electric lens (2) and a first high-precision gear (42) mounted on the output shaft of the first high-precision stepping motor (41), the electric lens (2) being provided with a focus ring (22) meshing with the first high-precision gear (42), the first high-precision stepping motor (41) being connected to a control module (5) via a wire and receiving a control signal from the control module (5).

2. The underwater high-speed camera system with automatic focusing according to claim 1, characterized in that: The underwater fill-light device (3) comprises a semiconductor laser (31), a transmission optical fiber (32) and a laser lens (33); the transmission optical fiber (32) connects the semiconductor laser (31) and the laser lens (33); the transmission optical fiber (32) is connected to the laser lens (33) via an FC port, and a shooting area is located on a laser path of the laser lens (33).

3. The underwater high-speed camera system with automatic focusing according to claim 2, characterized in that: The output wavelength of the semiconductor laser (31) is 525 nm.

4. The underwater high-speed camera system with automatic focusing according to claim 3, characterized in that: Both ends of the cavity side plate (13) are pressure-resistantly sealed by fluororubber O-rings (6).

5. The underwater high-speed camera system with automatic focusing according to claim 4, characterized in that: The sealed aviation plug (121) comprises a fan power supply aviation plug, an IO aviation plug, a network aviation plug and a power supply aviation plug.

6. The underwater high-speed camera system with automatic focusing according to claim 5, characterized in that: The adjustment assembly (4) further comprises two fixing members (43) corresponding to each other in position, wherein the fixing members (43) are fixed to the protective cavity (1) by means of bolts, a guide column (44) is connected between the two fixing members (43), a first motor bracket (45) is mounted on the guide column (44), and the first high-precision stepping motor (41) is fixed to the first motor bracket (45).

7. The underwater high-speed camera system with automatic focusing according to claim 6, characterized in that: A second motor bracket (46) arranged in parallel with the first motor bracket (45) is also mounted on the guide column (44); a second high-precision stepping motor (47) is mounted on the second motor bracket (46); a second high-precision gear (48) is connected to the output shaft of the second high-precision stepping motor (47); and a zoom ring (23) meshing with the second high-precision gear (48) is provided on the electric lens (2).

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