Radiation-resistant underwater camera with reflection lens

Abstract

The utility model provides an irradiation-resistant underwater camera with a reflection lens, which comprises a metal middle cylinder main body, and the front end of the metal middle cylinder main body is hermetically connected with a front cover of protective glass with a lens. An imaging structure composed of an electric focusing lens, a lens reflecting prism, a photoreceptor, a circuit main board, a circuit auxiliary board and an imaging module is arranged in the metal middle cylinder body, the imaging structure is fixedly connected with a rear baffle through a lens fixing block and an inner support, and the tail end of the metal middle cylinder body is connected with a rear cover with a watertight connector in a sealed mode. The beneficial effects of the utility model are that the whole body employs a waterproof design, the circuit main board, the circuit auxiliary board and the imaging module all employ an irradiation-resistant circuit board structure, can be applied to an underwater environment with nuclear radiation for a long time, changes the layout of the photoreceptor and the imaging module, adds a lens reflecting prism as an auxiliary structure, improves the imaging structure, and improves the imaging efficiency. The underwater camera shooting imaging effect and the reduction of the width and the size of the camera in the production process are facilitated.

Description

[Technical field]

[0001] The utility model relates to the field of underwater cameras, in particular to a radiation-resistant underwater camera provided with a reflective lens. [Background technology]

[0002] Underwater cameras are mainly used in underwater fields such as petroleum, deep-water detection, underwater operations and marine fisheries. The main functions of underwater cameras are measurement, monitoring, exploration, etc. The current underwater cameras have the following shortcomings:

[0003] 1. The current underwater cameras are not designed to be radiation-resistant. They are easily damaged by direct nuclear radiation, which makes them unsuitable for underwater applications where nuclear radiation exists.

[0004] 2. The reflective part of the current underwater camera is located at the front end of the lens, which is not conducive to the underwater imaging effect and the reduction of the width and volume of the camera. [Contents of the utility model]

[0005] The utility model aims to solve the above problems existing in the existing underwater cameras and provides a radiation-resistant underwater camera with a reflective lens.

[0006] The utility model is realized through the following technical scheme: a radiation-resistant underwater camera with a reflective lens, comprising a metal middle barrel body, a front cover, a lens protective glass, a sealing ring, an electric focus lens, a lens fixing block, a lens reflection prism, a photoreceptor, a circuit main board, a circuit sub-board, an imaging module, an inner bracket, a rear baffle, a rear cover, a first waterproof ring, a watertight connector, and a second waterproof ring. The metal middle barrel body is a cylindrical hollow camera shell with openings at the front and the end. The front end of the metal middle barrel body is sealed and connected to the front cover by screws. A lens protective glass mounting hole is provided in the middle of the front cover. A lens protective glass is installed in the lens protective glass mounting hole of the front cover. A sealing ring is provided between the lens protective glass and the front cover. The lens protective glass is sealed and connected to the front cover by the sealing ring. An electric focus lens is provided at the rear of one side of the lens protective glass located in the inner space of the metal middle barrel body. The front end of the electric focus lens corresponds to the position of the lens protective glass. The end of the electric focus lens is connected and fixed to the front end of the lens fixing block. The front end of the top of the lens fixing block is provided An embedding groove is provided, and a lens reflection prism and a photoreceptor are installed and fixed in the embedding groove of the lens fixing block. The front end of the lens reflection prism corresponds to the position of the electric focus lens, and the photoreceptor is located at the top of the lens reflection prism. A circuit main board and a circuit sub-board are provided at the end of the lens fixing block. The circuit main board is located directly above the circuit sub-board. An imaging module is provided above the lens fixing block and the circuit main board. An inner bracket is provided at the rear side of the lens fixing block. The two sides of the front end of the inner bracket are respectively fixed to the left and right sides of the lens fixing block by screws. The circuit main board and the circuit sub-board are clamped and fixed in the inner bracket. A rear baffle is provided at the rear side of the inner bracket. A rear cover is provided at the rear side of the rear baffle. The rear cover is connected to the end of the metal middle tube body by screws. A first waterproof ring is provided between the rear cover and the rear baffle. The first waterproof ring is a waterproof sealing connection structure with an opening at the end of the metal middle tube body. A threaded through hole is provided in the middle of the rear cover. The watertight connector is screwed and fixed to the rear cover. A second waterproof ring is provided between the watertight connector and the rear cover. The second waterproof ring is a waterproof sealing connection structure of the threaded through hole of the rear cover.

[0007] Furthermore, the metal middle tube body is a shielding metal protective layer of the camera.

[0008] Furthermore, the main circuit board, the sub-circuit board and the imaging module are all designed as radiation-resistant circuit boards.

[0009] Furthermore, the lens reflection prism is a 90° upward reflection prism structure, and the electric focus lens, the photoreceptor and the imaging module thereon are respectively arranged on a 90° optical path with the lens reflection prism as the reflection turning point.

[0010] Furthermore, a plurality of double-pass copper pillars are provided between the circuit main board and the circuit sub-board, and the circuit main board and the circuit sub-board are connected through the double-pass copper pillars. A plurality of double-pass copper pillars are provided between the circuit main board and the imaging module, and the circuit main board and the imaging module are connected through the double-pass copper pillars.

[0011] Furthermore, a plurality of copper pillars are provided between the rear baffle and the rear cover, one end of the copper pillar is inserted and fixed on the rear cover, and the other end is attached to the rear baffle, and a plurality of screws pass through the rear side of the inner bracket and the rear baffle, and are screwed and fixed on each copper pillar respectively.

[0012] Furthermore, it also includes a fill light board, light-transmitting glass, and a third waterproof ring. The fill light board is an annular plate on which a plurality of fill light beads are arranged. The fill light board is located between the front cover and the lens fixing block. The inner ring of the fill light board is sleeved on the front end of the electric focusing lens. The front end of the metal middle tube body is provided with light-transmitting holes that are consistent with the number and arrangement positions of the fill light beads of the fill light board. The front cover is provided with a plurality of light-transmitting glass mounting holes. The number and arrangement positions of the light-transmitting glass mounting holes correspond to the light-transmitting holes at the front end of the metal middle tube body. A piece of light-transmitting glass is installed in each light-transmitting glass mounting hole. A third waterproof ring is provided between each piece of light-transmitting glass and the front cover. The light-transmitting glass and the front cover are sealed and connected via the third waterproof ring.

[0013] Furthermore, the fill light board is a built-in fill light structure of the camera.

[0014] Furthermore, a plurality of copper columns are provided between the fill light board and the lens fixing block, one end of the copper column is inserted and fixed on the lens fixing block, and the other end passes through the fill light board and is pressed against the inner side wall of the front end of the metal middle tube body.

[0015] The beneficial effects of the utility model are:

[0016] 1. The circuit main board, circuit sub-board and imaging module of the present application are all designed with radiation-resistant circuit boards, and can be used in underwater environments with nuclear radiation;

[0017] 2. The present application separates the photoreceptor, arranges the photoreceptor and the imaging module above the rear side of the electric focus lens, and sets a 90° upward reflective lens prism between the electric focus lens and the photoreceptor. The reflective part of the present application is located between the electric focus lens and the imaging module, which is beneficial to the underwater camera imaging effect and the reduction of the width and volume of the camera during the production process;

[0018] 3. The present application adopts a waterproof design as a whole. The metal middle tube body is an insulating layer between the internal structure of the camera and water, and the front and rear openings of the metal middle tube body are sealed and connected to the connecting parts, so it can be used in underwater environments for a long time.

Brief Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the front structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the rear structure of the utility model;

[0022] Figure 4 It is an exploded view of the utility model;

[0023] Figure 5 An exploded diagram of a fill light structure is provided for the utility model;

[0024] Figure numerals: 1. Metal middle cylinder body; 2. Front cover; 3. Lens protection glass; 4. Sealing ring; 5. Electric focus lens; 6. Lens fixing block; 7. Lens reflection prism; 8. Photoreceptor; 9. Circuit main board; 10. Circuit sub-board; 11. Imaging module; 12. Inner bracket; 13. Rear baffle; 14. Rear cover; 15. First waterproof ring; 16. Watertight connector; 17. Second waterproof ring; 18. Fill light board; 19. Translucent glass; 20. Third waterproof ring. [Specific implementation method]

[0025] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a radiation-resistant underwater camera with a reflective lens includes a metal middle barrel body 1, a front cover 2, a lens protection glass 3, a sealing ring 4, an electric focus lens 5, a lens fixing block 6, a lens reflection prism 7, a photoreceptor 8, a circuit main board 9, a circuit sub-board 10, an imaging module 11, an inner bracket 12, a rear baffle 13, a rear cover 14, a first waterproof ring 15, a watertight connector 16, and a second waterproof ring 17. The metal middle barrel body 1 is a cylindrical hollow camera housing with openings at the front and rear ends. The front end of the metal middle barrel body 1 is sealed and connected to the front cover 2 by screws. The middle of the front cover 2 is provided with A lens protection glass mounting hole, a lens protection glass 3 is mounted in the lens protection glass mounting hole of the front cover 2, a sealing ring 4 is arranged between the lens protection glass 3 and the front cover 2, the lens protection glass 3 and the front cover 2 are sealed and connected through the sealing ring 4, the lens protection glass 3 is located at one side of the space in the metal middle tube body 1, and an electric focusing lens 5 is arranged at the rear, the front end of the electric focusing lens 5 corresponds to the position of the lens protection glass 3, the end of the electric focusing lens 5 is connected and fixed to the front end of the lens fixing block 6, the front top of the lens fixing block 6 is provided with an embedding groove, and the embedding groove of the lens fixing block 6 A lens reflection prism 7 and a photoreceptor 8 are installed and fixed, the front end of the lens reflection prism 7 corresponds to the position of the electric focus lens 5, the photoreceptor 8 is located at the top of the lens reflection prism 7, a circuit main board 9 and a circuit sub-board 10 are provided at the end of the lens fixing block 6, the circuit main board 9 is located directly above the circuit sub-board 10, an imaging module 11 is provided above the lens fixing block 6 and the circuit main board 9, an inner bracket 12 is provided at the rear side of the lens fixing block 6, the two sides of the front end of the inner bracket 12 are respectively fixed to the left and right sides of the lens fixing block 6 by screws, and the circuit main board 9 and the circuit sub-board 10 are clamped and fixed to the inner bracket A rear baffle 13 is provided on the rear side of the inner bracket 12, and a rear cover 14 is provided on the rear side of the rear baffle 13. The rear cover 14 is connected to the end of the metal middle tube body 1 by screws. A first waterproof ring 15 is provided between the rear cover 14 and the rear baffle 13. The first waterproof ring 15 is a waterproof sealing connection structure with an opening at the end of the metal middle tube body 1. A threaded through hole is provided in the middle of the rear cover 14. The watertight connector 16 is screwed and fixed to the rear cover 14. A second waterproof ring 17 is provided between the watertight connector 16 and the rear cover 14. The second waterproof ring 17 is a waterproof sealing connection structure of the threaded through hole of the rear cover 14.

[0027] Preferably, the metal middle cylinder body 1 is a shielding metal protective layer of the camera.

[0028] Preferably, the main circuit board 9, the sub-circuit board 10 and the imaging module 11 are all designed as radiation-resistant circuit boards.

[0029] Preferably, the lens reflection prism 7 is a 90° upward reflection prism structure, and the electric focus lens 5 and the photoreceptor 8 and the imaging module 11 thereon are respectively arranged on a 90° reflection light path with the lens reflection prism 7 as the reflection turning point.

[0030] Preferably, a plurality of double-pass copper pillars are provided between the circuit main board 9 and the circuit sub-board 10, and the circuit main board 9 and the circuit sub-board 10 are connected through the double-pass copper pillars. A plurality of double-pass copper pillars are provided between the circuit main board 9 and the imaging module 11, and the circuit main board 9 and the imaging module 11 are connected through the double-pass copper pillars.

[0031] Preferably, a plurality of copper columns are provided between the rear baffle 13 and the rear cover 14, one end of the copper column is inserted and fixed on the rear cover 14, and the other end is attached to the rear baffle 13, and a plurality of screws pass through the rear side of the inner bracket 12 and the rear baffle 13, and are screwed and fixed on each copper column respectively.

[0032] like Figure 5 As shown, it also includes a fill light board 18, a transparent glass 19, and a third waterproof ring 20. The fill light board 18 is an annular plate with a plurality of fill light beads arranged thereon. The fill light board 18 is located between the front cover 2 and the lens fixing block 6. The inner ring of the fill light board 18 is sleeved on the front end of the electric focusing lens 5. The front end of the metal middle tube body 1 is provided with light-transmitting holes that are consistent with the number and arrangement positions of the fill light beads of the fill light board 18. The front cover 2 is provided with a plurality of transparent glass mounting holes. The number and arrangement positions of the transparent glass mounting holes correspond to the light-transmitting holes at the front end of the metal middle tube body 1. A piece of transparent glass 19 is installed in each transparent glass mounting hole. A third waterproof ring 20 is provided between each piece of transparent glass 19 and the front cover 2. The transparent glass 19 is sealed and connected to the front cover 2 through the third waterproof ring 20.

[0033] Preferably, the fill light board 18 is a built-in fill light structure of the camera.

[0034] Preferably, a plurality of copper columns are provided between the fill light board 18 and the lens fixing block 6 , one end of the copper column is inserted and fixed on the lens fixing block 6 , and the other end passes through the fill light board 18 and presses against the inner side wall of the front end of the metal middle tube body 1 .

[0035] According to the disclosure and teaching of the above specification, the technicians in the field of the utility model can also make appropriate changes and modifications to the above implementation mode. Therefore, the utility model is not limited to the specific implementation modes disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of explanation and do not constitute any limitation to the utility model.

Claims

1. A radiation-resistant underwater camera with a reflective lens, characterized in that: The invention comprises a metal middle barrel body, a front cover, a lens protection glass, a sealing ring, an electric focusing lens, a lens fixing block, a lens reflecting prism, a photoreceptor, a circuit main board, a circuit sub-board, an imaging module, an inner bracket, a rear baffle, a rear cover, a first waterproof ring, a watertight connector and a second waterproof ring. The metal middle barrel body is a cylindrical hollow camera housing with openings at the front end and the end. The front end of the metal middle barrel body is sealed and connected to the front cover by screws. A lens protection glass mounting hole is provided in the middle of the front cover. A lens protection glass is installed in the lens protection glass mounting hole of the front cover. A sealing ring is provided between the lens protection glass and the front cover. The lens protection glass is sealed and connected to the front cover by the sealing ring. An electric focusing lens is provided at the rear of one side of the lens protection glass located in the inner space of the metal middle barrel body. The front end of the electric focusing lens corresponds to the position of the lens protection glass. The end of the electric focusing lens is connected and fixed to the front end of the lens fixing block. An embedding groove is provided at the front top of the lens fixing block. A lens reflection prism and a photoreceptor are fixed, the front end of the lens reflection prism corresponds to the position of the electric focus lens, the photoreceptor is located at the top of the lens reflection prism, a circuit main board and a circuit sub-board are provided at the end of the lens fixing block, the circuit main board is located directly above the circuit sub-board, an imaging module is provided above the lens fixing block and the circuit main board, an inner bracket is provided at the rear side of the lens fixing block, the two sides of the front end of the inner bracket are respectively fixed to the left and right sides of the lens fixing block by screws, the circuit main board and the circuit sub-board are clamped and fixed in the inner bracket, a rear baffle is provided at the rear side of the inner bracket, a rear cover is provided at the rear side of the rear baffle, the rear cover is connected to the end of the metal middle tube body by screws, a first waterproof ring is provided between the rear cover and the rear baffle, the first waterproof ring is a waterproof sealing connection structure of the end opening of the metal middle tube body, a threaded through hole is provided in the middle of the rear cover, the watertight connector is screwed and fixed to the rear cover, a second waterproof ring is provided between the watertight connector and the rear cover, the second waterproof ring is a waterproof sealing connection structure of the threaded through hole of the rear cover.

2. A radiation-resistant underwater camera with a reflective lens according to claim 1, characterized in that: The metal middle tube body is the shielding metal protective layer of the camera.

3. A radiation-resistant underwater camera with a reflective lens according to claim 1, characterized in that: The main circuit board, sub-circuit board and imaging module are all designed as radiation-resistant circuit boards.

4. A radiation-resistant underwater camera with a reflective lens according to claim 1, characterized in that: The lens reflection prism is a 90° upward reflection prism structure, and the electric focus lens, the photoreceptor and the imaging module thereon are respectively arranged on a 90° reflection light path with the lens reflection prism as the reflection turning point.

5. The radiation-resistant underwater camera with a reflective lens according to claim 1, characterized in that: A plurality of double-pass copper pillars are arranged between the circuit main board and the circuit sub-board, and the circuit main board and the circuit sub-board are connected by the double-pass copper pillars. A plurality of double-pass copper pillars are arranged between the circuit main board and the imaging module, and the circuit main board and the imaging module are connected by the double-pass copper pillars.

6. A radiation-resistant underwater camera with a reflective lens according to claim 1, characterized in that: A plurality of copper columns are arranged between the rear baffle and the rear cover, one end of the copper column is inserted and fixed on the rear cover, and the other end is attached to the rear baffle. A plurality of screws pass through the rear side of the inner bracket and the rear baffle, and are screwed and fixed on each copper column.

7. A radiation-resistant underwater camera with a reflective lens according to claim 1, characterized in that: It also includes a fill light board, light-transmitting glass, and a third waterproof ring. The fill light board is an annular plate on which a plurality of fill light beads are arranged. The fill light board is located between the front cover and the lens fixing block. The inner ring of the fill light board is sleeved on the front end of the electric focusing lens. The front end of the metal middle tube body is provided with light-transmitting holes that are consistent with the number and arrangement positions of the fill light beads of the fill light board. The front cover is provided with a plurality of light-transmitting glass mounting holes. The number and arrangement positions of the light-transmitting glass mounting holes correspond to the light-transmitting holes at the front end of the metal middle tube body. A piece of light-transmitting glass is installed in each light-transmitting glass mounting hole. A third waterproof ring is provided between each piece of light-transmitting glass and the front cover. The light-transmitting glass and the front cover are sealed and connected via the third waterproof ring.

8. A radiation-resistant underwater camera with a reflective lens according to claim 7, characterized in that: The fill light board is a built-in fill light structure of the camera.

9. The radiation-resistant underwater camera with a reflective lens according to claim 7, characterized in that: A plurality of copper columns are arranged between the fill light board and the lens fixing block, one end of the copper column is inserted and fixed on the lens fixing block, and the other end passes through the fill light board and is pressed against the inner side wall of the front end of the metal middle tube body.

Images