Underwater lens stress deformation optical detection equipment

Abstract

The utility model discloses an underwater lens stress deformation optical detection device, which belongs to the field of underwater imaging and comprises a light source, a first detected lens is arranged on one side of the light source, and a main shell is nested outside the first detected lens. The underwater lens stress deformation optical detection equipment has an overload protection function, that is, the first detected glass can still protect other equipment components from being damaged by water pressure in a state that the first detected glass is overloaded and broken, and the main shell and the cage type structure component in the main shell provide a dry bin environment for an internal optical component; the water body pressure is effectively prevented from interfering the interior of the device, the device adopts precise optical components such as a laser optical fiber, a convex lens, a concave lens and a plano-convex lens, accurate transmission and focusing of light beams are ensured, and high-precision image acquisition and analysis are realized through combination of a beam splitter prism and an optical camera. The stress deformation condition of the lens can be accurately reflected, and accurate detection of the stress deformation of the underwater lens is realized.

Description

Technical Field

[0001] The utility model relates to the field of underwater imaging, and more specifically, to an optical detection device for underwater lens stress and deformation. Background Art

[0002] With the continuous exploration of the ocean in recent years, underwater detection technology has developed rapidly, and underwater imaging technology has become a new research and development target. Currently, the lenses used in underwater imaging equipment will deform due to water pressure, which affects the quality of optical imaging. In order to better understand and control the deformation of optical lenses and maintain optical imaging quality, there is an urgent need for equipment related to detecting optical lens deformation.

[0003] Therefore, in order to solve the above problems, the present invention provides a detection device that can be used to detect the deformation of underwater optical lenses. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an underwater lens stress and deformation optical detection device to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an optical detection device for underwater lens stress and deformation, comprising a light source, a first lens to be inspected is provided on one side of the light source, a main shell is nested and installed on the outside of the first lens to be inspected, a cage-type structure component is embedded and installed on the inside of the main shell, a second convex-convex lens is installed on the inside of the cage-type structure component, a third convex-concave lens is provided on one side of the second convex-convex lens, a fourth plano-convex lens is provided on one side of the third convex-concave lens, a fifth protective glass is provided on one side of the fourth plano-convex lens, an inner shell movement is embedded and installed on one side of the inner shell movement, an optical imaging component is installed on the inside of the inner shell movement, a laser fiber is nested and installed on the outside of the light source, an adjustment frame is nested and installed on one end of the laser fiber, and fiber sealing glass is installed on the inside of the adjustment frame. A U-shaped curved rod support frame is nested and installed on the outside of the optical fiber, a cage structure support is installed inside the main shell, a first cage structure adjustment frame is installed on one side of the cage structure support, a second cage structure adjustment frame is provided on one side of the first cage structure adjustment frame, a third cage structure adjustment frame is provided on one side of the second cage structure adjustment frame, a fourth cage structure adjustment support frame is provided on one side of the third cage structure adjustment frame, a fifth cage structure adjustment support frame is provided on one side of the fourth cage structure adjustment support frame, a first beam splitter prism is installed inside the inner shell movement, a first optical camera is provided on one side of the first beam splitter prism, a second beam splitter prism is provided on one side of the first optical camera, a reflective lens is provided on one side of the second beam splitter prism, and a second optical camera is provided on one side of the reflective lens.

[0006] Furthermore, the light source is fixed on the outside of the main shell facing the center of the lens through a U-shaped curved rod support frame, and the light source includes a laser optical fiber, an adjustment frame, optical fiber sealing glass, and a U-shaped curved rod support frame.

[0007] Furthermore, the distance between the first inspected lens and the second convex-convex lens is relatively close, and should not exceed one tenth of the first inspected lens.

[0008] Furthermore, the main housing is used to integrally seal the cage-type structural assembly and support the first inspected lens.

[0009] Furthermore, the cage structure assembly is used to support the second convex-convex lens, the third convex-concave lens, the fourth plano-convex lens, and the inner shell movement, and to adjust the distance between the central optical axis of the overall optical detection equipment and the lens through the cage structure pillars, the first cage structure, the first cage structure adjustment frame, the second cage structure adjustment frame, and the third cage structure adjustment frame.

[0010] Furthermore, the second cage-type structure adjustment frame is fixed to the third cage-type structure adjustment frame via four support rods.

[0011] Furthermore, the cage structure assembly includes a fourth cage structure adjustment support frame and a fifth cage structure adjustment support frame for fixing and adjusting the inner shell movement.

[0012] Furthermore, the second convex-convex lens is fixed on the first cage-type structure adjustment frame.

[0013] Furthermore, the third convex-concave lens is fixed on the second cage-type structure adjustment frame.

[0014] Furthermore, the fourth plano-convex lens is fixed on the third cage-type structure adjustment frame.

[0015] Furthermore, the fifth protective glass is used to seal the inner shell movement.

[0016] Furthermore, the inner shell movement is equipped with an optical imaging component.

[0017] Furthermore, the optical imaging assembly includes a first beam splitter prism, a first optical camera, a second beam splitter prism, a reflective lens, and a second optical camera.

[0018] The technical effects and advantages of this utility model are:

[0019] 1. Compared with the existing technology, this underwater lens stress and deformation optical detection equipment has an overload protection function, that is, even if the first inspected glass is overloaded and broken, it can still protect the remaining equipment components from being damaged by water pressure. Through precise optical component adjustment and imaging system, it can achieve accurate detection of underwater lens stress and deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main appearance of the present invention.

[0021] Figure 2 It is a schematic diagram of the main structure of the present invention.

[0022] Figure 3 It is a schematic diagram of the composition of the light source 1 of the present invention.

[0023] Figure 4 Schematic diagram of the cage structure component 4 of the present invention.

[0024] Figure 5 This is a diagram of the inner shell movement 9 and optical imaging component 10 of the present invention.

[0025] The accompanying drawings are marked as follows: 1. light source; 2. first inspected lens; 3. main shell; 4. cage structure assembly; 5. second convex-convex lens; 6. third convex-concave lens; 7. fourth plano-convex lens; 8. fifth protective glass; 9. inner shell movement; 10. optical imaging assembly; 11. laser fiber; 12. adjustment frame; 13. fiber sealing glass; 14. U-shaped curved rod support frame; 15. cage structure pillar; 16. first cage structure adjustment frame; 17. second cage structure adjustment frame; 18. third cage structure adjustment frame; 19. fourth cage structure adjustment support frame; 20. fifth cage structure adjustment support frame; 21. first beam splitter prism; 22. first optical camera; 23. second beam splitter prism; 24. reflective lens; 25. second optical camera. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example 1

[0028] As attached Figure 1-5The optical detection device for underwater lens stress and deformation shown in the figure includes a light source 1, a first lens to be inspected 2 is provided on one side of the light source 1, a main shell 3 is nested and installed on the outside of the first lens to be inspected 2, a cage structure component 4 is embedded and installed inside the main shell 3, a second convex-convex lens 5 is installed inside the cage structure component 4, a third convex-concave lens 6 is provided on one side of the second convex-convex lens 5, a fourth plano-convex lens 7 is provided on one side of the third convex-concave lens 6, a fifth protective glass 8 is provided on one side of the fourth plano-convex lens 7, an inner shell movement 9 is embedded and installed on one side of the inner shell movement 9, an optical imaging component 10 is installed inside the inner shell movement 9, a laser fiber 11 is nested and installed on the outside of the light source 1, an adjustment frame 12 is nested and installed on one end of the laser fiber 11, an optical fiber sealing glass 13 is installed inside the adjustment frame 12, and a U-shaped curved rod support is nested and installed on the outside of the laser fiber 11 A cage structure support 15 is installed inside the main shell 3, a first cage structure adjustment mirror frame 16 is installed on one side of the cage structure support 15, a second cage structure adjustment mirror frame 17 is provided on one side of the first cage structure adjustment mirror frame 16, a third cage structure adjustment mirror frame 18 is provided on one side of the second cage structure adjustment mirror frame 17, a fourth cage structure adjustment support frame 19 is provided on one side of the third cage structure adjustment mirror frame 18, a fifth cage structure adjustment support frame 20 is provided on one side of the fourth cage structure adjustment support frame 19, a first beam splitter prism 21 is installed inside the inner shell movement 9, a first optical camera 22 is provided on one side of the first beam splitter prism 21, a second beam splitter prism 23 is provided on one side of the first optical camera 22, a reflective lens 24 is provided on one side of the second beam splitter prism 23, and a second optical camera 25 is provided on one side of the reflective lens 24.

[0029] Among them: Specifically, the underwater lens stress and deformation detection equipment mainly includes a light source 1, a first lens to be inspected 2, a main shell 3, a cage structure component 4, a second convex-convex lens 5, a third convex-concave lens 6, a fourth plano-convex lens 7, a fifth protective glass 8, an inner shell movement 9, and an optical imaging component 10.

[0030] Specifically, the underwater lens stress and deformation detection device is placed in deep water and uses the light source 1 to illuminate the first lens 2 to be inspected. At this time, the other components are protected by the main shell 3 and are not affected by the water pressure and remain in a dry warehouse state.

[0031] Specifically, the light source 1 includes a laser fiber 11, an adjustment frame 12, a fiber sealing glass 13, and a U-shaped curved rod support frame 14. One end of the laser fiber 11 is fixed to the adjustment frame 12, and the adjustment knob of the adjustment frame 12 is used to adjust the light output position of the laser fiber 11 to correspond to the center of the first inspection lens 2.

[0032] Specifically, the first inspected lens 2 is fixed at the front end of the main shell 3 to form a sealed cage structure. The specific sealing method is that there is a sealing ring groove under the first inspected lens 2. When the first inspected lens 2 is fixed, the sealing ring will be squeezed to seal the gap between the first inspected lens 2 and the main shell 3, thereby realizing a dry warehouse environment of the cage structure.

[0033] Specifically, the cage structure assembly 4 includes a cage structure support 15 , a first cage structure adjustment frame 16 , a second cage structure adjustment frame 17 , a third cage structure adjustment frame 18 , a fourth cage structure adjustment support frame 19 , and a fifth cage structure adjustment support frame 20 .

[0034] Specifically, cage assembly 4 is adjusted by securing a first cage-structure support 15 to a first cage-structure adjustment frame 16. The second cage-structure adjustment frame 17, the third cage-structure adjustment frame 18, the fourth cage-structure adjustment support frame 19, and the fifth cage-structure adjustment support frame 20 are then inserted sequentially. Each support frame is then slid back and forth on cage-structure support 15 to adjust the distance between them. Once the position is adjusted, the support frames are locked in place with screws.

[0035] Specifically, the second cage-type structure adjustment frame 17 is fixed to the third cage-type structure adjustment frame 18 via four small pillars.

[0036] Specifically, when the second convex-convex lens 5 works, it focuses the light beam passing through the first inspected lens 2, so its distance from the first inspected lens 2 is very close, that is, the distance H between the second convex-convex lens 5 and the first inspected lens 2 is less than or equal to one tenth of the diameter Φ of the first inspected lens 2, that is, H≤Φ / 10.

[0037] Specifically, the second convex-convex lens 5 is fixed on the first cage structure adjustment frame 16 in the cage structure assembly 4, and the distance H between the second convex-convex lens 5 and the first inspected lens 2 is controlled by adjusting the front and rear position of the first cage structure adjustment frame 16.

[0038] Specifically, the third convex-concave lens 6 and the fourth plano-convex lens 7 are respectively fixed to the second cage structure adjustment frame 17 and the third cage structure adjustment frame 18 in the cage structure assembly 4. Similarly, changing the position of the second cage structure adjustment frame 17 and the third cage structure adjustment frame 18 changes the relative position of the third convex-concave lens 6 and the fourth plano-convex lens 7, that is, their relative positions in the overall underwater lens stress and deformation detection device.

[0039] Specifically, the fifth protective glass 8 is fixed to the inner shell movement 9, forming a sealed cavity within the inner shell movement 9. The sealing principle is similar to that of the first inspected glass. The inner shell movement 9 has a sealing ring groove with a protruding sealing ring inside. When the fifth protective glass 8 is fixed, the sealing ring is squeezed and fills the gap between the fifth protective glass 8 and the inner shell movement 9, thus sealing the cavity.

[0040] Specifically, the optical imaging assembly 10 is composed of a first beam splitter prism 21 , a first optical camera 22 , a second beam splitter prism 23 , a reflective lens 24 , and a second optical camera 25 .

[0041] Specifically, the function of the first beam splitter prism 21 is to split the light entering the inner shell movement 9 and transmit it to the target surface of the first optical camera 22 .

[0042] Specifically, the reflective lens 24 and the second beam splitter prism 23 are used to combine the light generated by the laser optical fiber 11 into the second optical camera 25 .

[0043] Specifically, the laser optical fiber 11, the first optical camera 22, and the second optical camera 25 are powered and exchange data through a watertight joint at the tail of the underwater lens stress and deformation detection equipment.

[0044] Specifically, the principle of underwater lens stress and deformation detection is that when the light emitted by the light source 1 passes through the first inspected lens 2, the second convex-convex lens 5, the third convex-concave lens 6, the fourth plano-convex lens 7, and the fifth protective glass 8, an image will be formed on the second optical camera 25. When the first inspected lens 2 is deformed by water pressure, the image will produce corresponding changes. The changes of the first inspected lens 2 can be obtained through data analysis and calculation.

[0045] The working process of this utility model is as follows:

[0046] When the underwater lens stress and deformation optical detection device is in use, the underwater lens stress and deformation detection device is placed in deep water to ensure that all components are protected by the main shell 3 to form a dry warehouse environment without being disturbed by water pressure. The light output position of the laser fiber 11 is adjusted by the adjustment knob on the adjustment frame 12 to correspond to the center of the first inspected lens 2. The light generated by the laser fiber 11 is stably irradiated onto the first inspected lens 2 through the optical fiber sealing glass 13 and the U-shaped curved rod support frame 14. After the light beam passes through the first inspected lens 2, it is focused by the second convex-convex lens 5. The second convex-convex lens 5 is fixed on the first cage structure adjustment frame 16. By adjusting its front and rear position, the distance HH between it and the first inspected lens 2 is controlled to be ≤Φ / 10 (Φ is the diameter of the first inspected lens 2). The third convex-concave lens 6 and the fourth plano-convex lens 7 are respectively fixed on the first inspected lens 2. On the second cage structure adjustment frame 17 and the third cage structure adjustment frame 18, by adjusting the positions of the various adjustment frames and support frames in the cage structure assembly 4, the relative positions between the lenses are changed. After the light beam passes through these lenses, it finally passes through the fifth protective glass 8 and enters the sealed cavity of the inner shell movement 9. In the inner shell movement 9, the first beam splitter prism 21 splits the light beam and transmits it to the target surface of the first optical camera 22 to form an image. At the same time, the reflective lens 24 and the second beam splitter prism 23 combine the light generated by the laser optical fiber 11 into the second optical camera 25. The first optical camera 22 and the second optical camera 25 are powered and exchange data through a watertight joint. When the first inspected lens 2 is deformed by water pressure, the image will change accordingly. Through data analysis and calculation, the changes in the first inspected lens 2 can be obtained. This is the working process and working principle of the device.

[0047] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0048] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0049] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An optical detection device for underwater lens stress and deformation, comprising a light source (1), characterized in that: A first inspected lens (2) is provided on one side of the light source (1); a main housing (3) is nested and installed on the outside of the first inspected lens (2); a cage-type structural component (4) is embedded and installed inside the main housing (3); a second convex-convex lens (5) is installed inside the cage-type structural component (4); a third convex-concave lens (6) is provided on one side of the second convex-convex lens (5); a fourth plano-convex lens (7) is provided on one side of the third convex-concave lens (6); and a fourth plano-convex lens (7) is provided on one side of the fourth plano-convex lens (7). A fifth protective glass (8) is provided, an inner shell movement (9) is embedded and installed on one side of the interior of the main shell (3), an optical imaging component (10) is installed inside the inner shell movement (9), a laser optical fiber (11) is nested and installed outside the light source (1), an adjustment frame (12) is nested and installed at one end of the laser optical fiber (11), an optical fiber sealing glass (13) is installed inside the adjustment frame (12), a U-shaped curved rod support frame (14) is nested and installed outside the laser optical fiber (11), the main A cage structure support (15) is installed inside the housing (3); a first cage structure adjustment frame (16) is installed on one side of the cage structure support (15); a second cage structure adjustment frame (17) is provided on one side of the first cage structure adjustment frame (16); a third cage structure adjustment frame (18) is provided on one side of the second cage structure adjustment frame (17); a fourth cage structure adjustment support frame (19) is provided on one side of the third cage structure adjustment frame (18); A fifth cage-type structure adjustment support frame (20) is provided on one side of the cage-type structure adjustment support frame (19); a first beam splitter prism (21) is installed inside the inner shell movement (9); a first optical camera (22) is provided on one side of the first beam splitter prism (21); a second beam splitter prism (23) is provided on one side of the first optical camera (22); a reflective lens (24) is provided on one side of the second beam splitter prism (23); and a second optical camera (25) is provided on one side of the reflective lens (24).

2. The underwater lens stress and deformation optical detection device according to claim 1, characterized in that: The light source (1) is fixed on the outside of the main housing (3) directly facing the center of the lens via a U-shaped curved rod support frame (14). The light source (1) comprises a laser optical fiber (11), an adjustment frame (12), optical fiber sealing glass (13), and a U-shaped curved rod support frame (14).

3. The underwater lens stress and deformation optical detection device according to claim 1, characterized in that: The first inspected lens (2) and the second convex-convex lens (5) are relatively close in distance and should not exceed one tenth of the first inspected lens (2).

4. The underwater lens stress and deformation optical detection device according to claim 1, characterized in that: The main housing (3) is used to integrally seal the cage-type structural component (4) and support the first inspected lens (2).

5. The underwater lens stress and deformation optical detection device according to claim 1, characterized in that: The cage structure assembly (4) is used to support the second convex-convex lens (5), the third convex-concave lens (6), the fourth plano-convex lens (7), and the inner shell movement (9), and the distance between the central optical axis of the overall optical detection equipment and the lens is adjusted through the cage structure pillars (15), the first cage structure, the first cage structure adjustment frame (16), the second cage structure adjustment frame (17), and the third cage structure adjustment frame (18).

6. The underwater lens stress and deformation optical detection device according to claim 1, characterized in that: The second cage-type structure adjustment mirror frame (17) is fixed to the third cage-type structure adjustment mirror frame (18) via four support rods.

7. The underwater lens stress and deformation optical detection device according to claim 1, characterized in that: The fourth cage structure adjustment support frame (19) and the fifth cage structure adjustment support frame (20) included in the cage structure assembly (4) are used to fix and adjust the inner shell movement (9).

8. The underwater lens stress and deformation optical detection device according to claim 1, characterized in that: The second convex-convex lens (5) is fixed on a first cage-type structure adjustment frame (16).

9. The underwater lens stress and deformation optical detection device according to claim 1, characterized in that: The third convex-concave lens (6) is fixed on the second cage-type structure adjustment frame (17).

10. The underwater lens stress and deformation optical detection device according to claim 1, characterized in that: The fourth plano-convex lens (7) is fixed on a third cage-type structure adjustment lens frame (18).

11. The underwater lens stress and deformation optical detection device according to claim 1, characterized in that: The fifth protective glass (8) is used to seal the inner shell movement (9).

12. The underwater lens stress and deformation optical detection device according to claim 1, characterized in that: The inner shell movement (9) is equipped with an optical imaging component (10).

13. The underwater lens stress and deformation optical detection device according to claim 1, characterized in that: The optical imaging assembly (10) comprises a first beam splitter prism (21), a first optical camera (22), a second beam splitter prism (23), a reflective lens (24), and a second optical camera (25).

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