CN111399316B - Underwater wide-angle camera equipment - Google Patents
Underwater wide-angle camera equipment Download PDFInfo
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- CN111399316B CN111399316B CN202010252726.XA CN202010252726A CN111399316B CN 111399316 B CN111399316 B CN 111399316B CN 202010252726 A CN202010252726 A CN 202010252726A CN 111399316 B CN111399316 B CN 111399316B
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- sealing ring
- lens module
- cabin body
- spherical glass
- wide
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/08—Waterproof bodies or housings
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/51—Housings
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/95—Computational photography systems, e.g. light-field imaging systems
- H04N23/957—Light-field or plenoptic cameras or camera modules
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computing Systems (AREA)
- Theoretical Computer Science (AREA)
- Structure And Mechanism Of Cameras (AREA)
- Studio Devices (AREA)
Abstract
An underwater wide-angle imaging apparatus comprising: the camera shooting device comprises a camera shooting unit, spherical glass, a cabin body and a sealing assembly, wherein the cabin body is provided with a step, and the step comprises at least two concave cavities fastened with the sealing assembly; the camera device is positioned in a first sealed cavity formed by the spherical glass, the cabin body and the sealing assembly; the sealing assembly comprises at least two locking pieces, at least two first pressing pieces matched with the at least two first locking pieces and a sealing ring; the first surface of sealing washer and the lower surface laminating of compressing tightly the piece, the second surface of sealing washer is located the first sealed cavity that compresses tightly the piece and press from both sides with the cabin body, spherical glass, the sealing washer is in under the effect of the first piece that compresses tightly, radially and axial production deformation. The underwater static wide-angle camera shooting device realizes underwater static wide-angle camera shooting, and has the advantages of good sealing effect and simple structure.
Description
Technical Field
The invention relates to the field of illumination, in particular to underwater wide-angle camera equipment.
Background
The wide-angle camera in the prior art usually achieves a wide-angle effect by arranging a rotatable base, and is not directly provided with a wide-angle lens and a lens module to realize static wide-angle shooting. Because the light-transmitting cover of the static wide-angle camera needs spherical light-transmitting glass, the sealing difficulty of the spherical surface and the plane surface restricts the static visual angle range of the wide-angle camera.
Disclosure of Invention
In order to solve the technical problems of poor sealing effect, complex structure and difficulty in realizing static wide-angle shooting of underwater wide-angle shooting equipment in the prior art, the invention provides:
an underwater wide-angle imaging apparatus comprising: the camera shooting device comprises a camera shooting unit, spherical glass, a cabin body and a sealing assembly, wherein the cabin body is provided with a step, and the step comprises at least two concave cavities fastened with the sealing assembly;
the camera device is positioned in a first sealed cavity formed by the spherical glass, the cabin body and the sealing assembly;
the sealing assembly comprises at least two locking pieces, at least two first pressing pieces matched with the at least two first locking pieces and a sealing ring; the first surface of the sealing ring is attached to the lower surface of the pressing piece, the second surface of the sealing ring is positioned in a second sealing cavity formed by clamping the first pressing piece with the cabin body and the spherical glass, and the sealing ring deforms in the radial direction and the axial direction under the action of the first pressing piece; the diameter of the sealing ring is reduced from the height of the step surface to the lower part along with the reduction of the height.
Preferably, the first locking piece is rotatably embedded into the concave cavity, the rotation presses the lower surface of the first pressing piece and the upper surface of the cabin body, and the rotation presses the sealing ring into the second sealing cavity through the first pressing piece;
in the second sealed cavity, the horizontal distance between the spherical glass and the step at the horizontal height of the lower surface of the first pressing part is larger than the horizontal distance between the spherical glass and the step at any height below the horizontal height of the lower surface of the first pressing part.
Preferably, the rotary steering sealing ring applies an axial force, when the axial force is generated, the spherical glass and the step apply a radial force to the sealing ring, and under the action of the radial force and the axial force, the height of the sealing ring, the diameter of the first surface of the sealing ring and the diameter of the second surface of the sealing ring are all reduced.
Preferably, the type of the sealing ring is selected, and a first distance L from the joint of the spherical glass and the cabin body to the lower surface of the first pressing piece is used1A second distance L between the spherical glass and the cabin step close to the spherical glass side is arranged at the horizontal height of the lower surface of the first pressing part2Spherical glass outer diameter L3And calculating the diameter range of the sealing ring in the non-compaction state.
Preferably, the type of the sealing ring is selected, and a first distance L from the joint of the spherical glass and the cabin body to the lower surface of the first pressing piece is used1On the horizontal height of the lower surface of the first pressing part, the second distance L between the spherical glass and the side of the cabin step close to the spherical glass2At the level of the lower surface of the first pressing member, the distance L between two opposite steps4And calculating the diameter range of the sealing ring in the non-compaction state.
Preferably, the unit of making a video recording includes wide-angle lens, lens module fixing base, lens module, the unit of making a video recording still includes lens module fixing bolt, bracing piece, rear end cap connection lid, bracing piece connecting bolt, and lens module fixing base and bracing piece, bracing piece connecting bolt and rear end cap connection lid constitute the strutting arrangement that makes a video recording, the strutting arrangement that makes a video recording is used for installing wide-angle lens and lens module.
Preferably, the upper part of the lens module fixing seat is provided with an internal thread which is connected with an external thread at the bottom end of the wide-angle lens; a third cavity for placing the lens module is arranged in the middle of the lens module fixing seat; the side wall of the lens module fixing seat is provided with a through hole for fixing the lens module and the lens module fixing seat; the lower end part of the lens module fixing seat is provided with two threaded holes for mounting a supporting rod; the first end of the support rod is provided with an external thread, and the second end of the support rod is provided with a threaded hole.
Preferably, the lens module is connected with the rear end cover through a contact pin, the rear end cover is connected with the socket, and communication and power supply are achieved through the socket.
Preferably, the first locking member is a locking bolt, and a thread matched with the locking bolt is arranged in the cavity.
Preferably, the cabin further comprises a platform for mounting spherical glass.
According to the technical scheme provided by the invention, through the arrangement of a mechanical structure which simultaneously applies radial force and axial force to the sealing ring, after the sealing ring is subjected to the axial force, two non-parallel surfaces in the radial direction deform, so that the sealing effect is achieved; when withstand voltage increases, the sealing washer can wholly move to hemisphere glass cover bottom, moves toward the bottom more, and the clearance between the inner wall of the upper portion of the sealed cabin body and the outer wall of the light-transmitting cover is less, and the sealing effect is better. In addition, the type selection calculation of the sealing ring in the technical scheme of the invention assists in improving the sealing and waterproof effects.
Drawings
Fig. 1 is a schematic sealing diagram of an underwater wide-angle camera according to an embodiment of the present invention;
fig. 2 is an exploded view of an underwater wide-angle camera according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an underwater wide-angle camera according to an embodiment of the present invention;
fig. 4 is a schematic view of an internal camera of an underwater wide-angle camera according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating an internal camera device of an underwater wide-angle camera apparatus according to an embodiment of the present invention connected to a rear end cover;
fig. 6a is a top view of a sealed cabin of an underwater wide-angle camera device according to an embodiment of the present invention;
fig. 6b is a bottom view of a sealed cabin of an underwater wide-angle camera device according to an embodiment of the present invention;
fig. 7a is a side view of an internal camera supporting device of an underwater wide-angle camera device according to an embodiment of the present invention;
fig. 7b is a top view of an internal camera supporting device of an underwater wide-angle camera device according to an embodiment of the present invention;
fig. 7c is a bottom view of an internal camera supporting device of an underwater wide-angle camera device according to an embodiment of the present invention;
fig. 7d is a perspective view of an internal camera supporting device of an underwater wide-angle camera device according to an embodiment of the present invention;
fig. 8 is a geometric structure diagram of a seal ring selection of an underwater wide-angle camera according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of the present invention.
Example one
The embodiment provides an underwater wide-angle camera device, as shown in fig. 1 to 7d, which mainly includes a sealing device and an internal camera device, and specifically includes: the lens shade fixing bolt 1, the lens shade 2, the gland locking bolt 3, the gland 4, the front end sealing ring 5, the hemispherical glass light-transmitting cover 6, the sealed cabin 7, the wide-angle lens 8, the lens module fixing seat 9, the lens module 10, the lens module fixing bolt 11, the support rod 12, the rear end cover connecting cover fixing bolt 13, the rear end cover connecting cover 14, the support rod connecting bolt 15, the rear end cover sealing ring 16, the rear end cover 17, the rear end cover fixing bolt 18 and the watertight socket 19.
The present embodiment describes an underwater wide-angle imaging apparatus from a sealing device and an internal imaging device, respectively.
The sealing device includes: the light shield fixing bolt 1, the light shield 2, the gland locking bolt 3, the gland 4, the front end sealing ring 5, the hemispherical glass light-transmitting cover 6, the sealed cabin body 7, the rear end cover connecting cover fixing bolt 13, the rear end cover sealing ring 16, the rear end cover 17, the rear end cover fixing bolt 18 and the watertight socket 19.
Four bolt holes are uniformly distributed on the circumference of the upper end surface of the sealed cabin body 7 and are used for mounting gland locking bolts 3; the upper end of the interior of the sealed cabin body is provided with a platform for mounting a round glass light-transmitting cover 6; four bolt holes are uniformly distributed on the circumference of the lower end face of the sealed cabin body and used for mounting rear end cover fixing bolts; the middle cavity of the sealed cabin body is used for placing an internal camera device.
The hemispherical glass light-transmitting cover 6 is a hemispherical hollow hemispherical cover with a certain wall thickness. The front end sealing ring is clamped into a boss/step at the upper part of the sealed cabin body, the hemispherical glass light-transmitting cover is sleeved in the front end sealing ring, and the front end sealing ring is deformed between the inner wall at the upper part of the sealed cabin body and the outer wall of the light-transmitting cover through the gland 4 to play a role in sealing. This seal structure novel in design, conventionally, the sealing washer receives radial force either, or receives axial force, produces regular deformation in order to play sealed effect between two parallel faces. In the invention, after the sealing ring is subjected to axial force, two non-parallel surfaces in the radial direction deform to achieve the sealing effect; when withstand voltage increases, the sealing washer can wholly move to hemisphere glass cover bottom, moves toward the bottom more, and the clearance between the inner wall of the upper portion of the sealed cabin body and the outer wall of the light-transmitting cover is less, and the sealing effect is better.
Four through holes and four threaded holes are uniformly distributed in the gland 4, and the four through holes are used for passing through gland locking bolts so as to fix the gland and the sealed cabin body. And the four threaded holes are used for installing the light shield fixing bolts. The light shield is placed on the upper portion of the pressing cover, and the light shield fixing bolts penetrate through the four through holes in the upper portion of the light shield to fix the light shield on the pressing cover.
The rear end cover is provided with a radial seal groove for mounting a seal ring 16 for the rear end cover; the middle of the socket is provided with a threaded hole for installing a watertight socket; the upper end surface of the rear end cover is provided with two threaded holes; four through holes are uniformly distributed on the periphery of the lower end face of the rear end cover. After the sealing ring and the watertight socket are installed on the rear end cover, the rear end cover is inserted from the lower end of the sealed cabin body, and the rear end cover is fastened with the sealed cabin body through the rear end cover fixing bolt.
The radius of the hemispherical glass light-transmitting cover 6 and the height of the gland locking bolt 3 are used for determining the distance between the hemispherical glass light-transmitting cover 6 and the inner side of the sealed cabin body 7, and the calculation method of the radius of the type selection is as follows:
the radius of the selected hemispherical light-transmitting cover is 50mm, and because the standard hemispherical light-transmitting cover is difficult to process in processing, the hemispherical light-transmitting cover is generally smaller than the actual hemispherical light-transmitting cover, namely the radius of the hemispherical light-transmitting cover is 50mm, and the height of the hemispherical light-transmitting cover is 49 mm. The thickness of the hemispherical light-transmitting cover is selected to be 4mm according to the strength requirement. As shown in fig. 8, a chord BC is selected on the inner layer of the hemispherical light-transmitting cover, and the length of the chord BC is equal to the diameter of the upper end surface of the wide-angle lens. In the present example, the diameter of the upper end surface of the wide-angle lens is 72mm, i.e., BC 72 mm. The GE height is about 25mm through calculation, the gland height is removed for not blocking the wide-angle lens and is 8mm, and the length of the LF is less than GE-8mm, namely the LF is less than 17 mm. When LF is 17mm, KM is 3.4mm, HK is 93.3mm, and the section diameter of the optional sealing ring is 2.65mm and 3.55 mm.
In the embodiment, the sealing ring is used for sealing between two non-parallel surfaces, and in order to make the type selection of the sealing ring more scientific, the invention provides an assumption that a groove is supposed to exist and consists of an edge KM, an edge KO and an edge OP. When KM is more than 1.86 and less than or equal to 2.46 and HK is more than 97.54 and less than or equal to 98.14, the compression rate of the O-shaped ring is generally controlled to be 7-30% for good sealing effect, the range of the sealing ring is obtained by calculation, and then the standard part of the sealing ring in the range is selected, for example, the sealing ring with the section diameter of 2.65mm is selected. If the virtual groove exists, the specification of the sealing ring can be selected as follows according to the condition that MN is 100 mm: 95.5X 2.65; when 2.49 < KM < 3.44 and 96.56 < HK < 97.51 are required, a seal ring with a cross-sectional diameter of 3.55mm is selected by the same calculation. If the virtual groove exists, the specification of the sealing ring can be selected as follows according to the condition that MN is 100 mm: 92.5X 3.55; by adjusting the size of the LF, KM with different sizes can be obtained, and then the model of the sealing ring can be selected.
The internal imaging device includes: the wide-angle lens module comprises a wide-angle lens 8, a lens module fixing seat 9, a lens module 10, a lens module fixing bolt 11, a support rod 12, a rear end cover connecting cover 14 and a support rod connecting bolt 15. The lens module fixing seat 9, the support rod 12, the support rod connecting bolt 15 and the rear end cover connecting cover 14 form an internal camera shooting supporting device for mounting a wide-angle lens and a lens module.
The upper part of the lens module fixing seat 9 is provided with internal threads which are used for being connected with external threads at the bottom end of the wide-angle lens; the middle of the lens module fixing seat is provided with a cavity for placing the lens module; the side wall of the lens module fixing seat is provided with a through hole, so that the lens module 10 and the lens module fixing seat 9 can be fixed together conveniently. The lower end part of the lens module fixing seat 9 is provided with two threaded holes for installing two support rods 12; one end of the support rod 12 is provided with an external thread, and the other end is provided with a threaded hole. One end with external threads is used for being screwed into a threaded hole at the lower end of the lens module fixing seat; the end with the threaded hole is convenient to be connected with the rear end cover connecting cover and is locked by the support rod connecting bolt. The rear end cover connecting cover is provided with four through holes, two of the through holes are used for installing the supporting rods, and the two through holes are used for connecting the rear end cover.
The internal camera supporting device with the wide-angle lens and the lens module is integrated with the rear end cover 17 through the rear end cover connecting cover 14, and the rear end of the watertight socket 19 is provided with a communication line and a power supply line which are connected with a circuit board at the rear end of the lens module through a contact pin to complete power supply and communication output.
The sealing cabin body is made of TC4 titanium alloy, so that the strength is high and the sealing cabin body is corrosion-resistant; the hemispherical glass light-transmitting cover adopts K9 optical glass, and has high light transmittance and high strength; the rear circuit board in the lens module integrates the video compression coding function, so that videos can be output through a network, and the stability is improved.
In order to invent a static super-large wide-angle camera, the front end of the camera needs to be made of hemispherical glass instead of plane glass. It is well known that flat glass seals are simple and hemispherical glass seals are complex. More people usually sacrifice the processing simplicity of the hemispherical glass in order to realize simple sealing, and the spherical glass with the plane flange edge is processed to facilitate sealing, so that the volume is relatively increased.
The sealing structure is novel in design, and after the sealing ring is subjected to axial force, two non-parallel surfaces in the radial direction deform to achieve a sealing effect; when withstand voltage increases, the sealing washer can wholly move to hemisphere glass cover bottom, moves toward the bottom more, and the clearance between the inner wall of the upper portion of the sealed cabin body and the outer wall of the light-transmitting cover is less, and the sealing effect is better. In addition, the type selection calculation of the sealing ring ensures that the clearance between the sealing ring and the light-transmitting cover is extremely small. The internal camera shooting supporting structure is exquisite in design, simple in assembly and easy to operate. By selecting different wide-angle lenses and the machine core and matching with the design of the hemispherical glass cover at the front end of the sealed cabin body, the maximum visual angle of the underwater camera reaches 172 degrees, and the real static super wide-angle effect is realized.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. An underwater wide-angle imaging apparatus, comprising: the camera shooting device comprises a camera shooting unit, spherical glass, a cabin body and a sealing assembly, wherein the cabin body is provided with a step, and the step comprises at least two concave cavities fastened with the sealing assembly;
the camera device is positioned in a first sealed cavity formed by the spherical glass, the cabin body and the sealing assembly;
the sealing assembly comprises at least two locking pieces, at least two first pressing pieces matched with the at least two first locking pieces and a sealing ring; the first surface of the sealing ring is attached to the lower surface of the pressing piece, the second surface of the sealing ring is positioned in a second sealing cavity formed by clamping the first pressing piece with the cabin body and the spherical glass, the sealing ring deforms in the radial direction and the axial direction under the action of the first pressing piece, and the sealing ring moves towards the bottom end; the diameter of the sealing ring is reduced from the height of the step surface to the lower part along with the reduction of the height;
the first locking piece is rotatably embedded into the concave cavity, the lower surface of the first pressing piece and the upper surface of the cabin body are pressed tightly through the rotation, and the sealing ring is pressed into the second sealing cavity through the first pressing piece through the rotation;
in the second sealed cavity, the horizontal distance between the spherical glass and the step at the horizontal height of the lower surface of the first pressing part is larger than the horizontal distance between the spherical glass and the step at any height below the horizontal height of the lower surface of the first pressing part;
the rotary steering sealing ring applies an axial force, when the axial force is generated, the spherical glass and the step apply a radial force to the sealing ring, and under the action of the radial force and the axial force, the height of the sealing ring, the diameter of a first surface of the sealing ring and the diameter of a second surface of the sealing ring are reduced;
the type of the sealing ring is selected, and a first distance L from the joint of the spherical glass and the cabin body to the lower surface of the first pressing piece is used1A second distance L between the spherical glass and the cabin step close to the spherical glass side is arranged at the horizontal height of the lower surface of the first pressing part2Spherical glass outer diameter L3Calculating the diameter range of the sealing ring in an uncompacted state;
the type of the sealing ring is selected, and a first distance L from the joint of the spherical glass and the cabin body to the lower surface of the first pressing piece is used1On the horizontal height of the lower surface of the first pressing part, the second distance L between the spherical glass and the side of the cabin step close to the spherical glass2At the level of the lower surface of the first pressing member, the distance L between two opposite steps4Calculating the diameter range of the sealing ring in an uncompacted state;
the camera shooting unit comprises a wide-angle lens, a lens module fixing seat and a lens module, and further comprises a lens module fixing bolt, a supporting rod, a rear end cover connecting cover and a supporting rod connecting bolt, wherein the lens module fixing seat, the supporting rod connecting bolt and the rear end cover connecting cover form a camera shooting supporting device, and the camera shooting supporting device is used for installing the wide-angle lens and the lens module;
the upper part of the lens module fixing seat is provided with an internal thread which is connected with an external thread at the bottom end of the wide-angle lens; a third cavity for placing the lens module is arranged in the middle of the lens module fixing seat; the side wall of the lens module fixing seat is provided with a through hole for fixing the lens module and the lens module fixing seat; the lower end part of the lens module fixing seat is provided with two threaded holes for mounting a supporting rod; the first end of the support rod is provided with an external thread, and the second end of the support rod is provided with a threaded hole;
four bolt holes are uniformly distributed on the circumference of the upper end surface of the sealed cabin body and used for mounting gland locking bolts; the upper end of the interior of the sealed cabin body is provided with a platform for mounting a round glass light-transmitting cover; four bolt holes are uniformly distributed on the circumference of the lower end face of the sealed cabin body and used for mounting rear end cover fixing bolts; the middle cavity of the sealed cabin body is used for placing an internal camera device;
the radius of the hemispherical cover is 50mm, the height of the hemispherical cover is 49mm, the thickness of the hemispherical light-transmitting cover is 4mm, a string BC is selected on the inner layer of the hemispherical light-transmitting cover, the length of the string BC is equal to the length of the diameter of the upper end face of the wide-angle lens, the diameter of the upper end face of the wide-angle lens is 72mm, the height of GE is 25mm, the height of a removed gland is 8mm, and the length of LF is less than GE-8 mm; when LF equals 17mm, KM equals 3.4mm, HK equals 93.3mm, and the cross-sectional diameter of the sealing ring is 2.65mm, 3.55 mm.
2. The underwater wide-angle camera apparatus of claim 1, wherein the lens module is connected to a rear end cap via a pin, and the rear end cap is connected to a socket, and communicates and supplies power via the socket.
3. The underwater wide-angle imaging apparatus according to claim 1, wherein the first locking member is a locking bolt, and a thread that engages with the locking bolt is provided in the cavity.
4. The underwater wide-angle imaging apparatus according to claim 1, wherein the cabin further includes a platform for mounting spherical glass.
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| CN202010252726.XA CN111399316B (en) | 2020-04-01 | 2020-04-01 | Underwater wide-angle camera equipment |
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| CN202010252726.XA CN111399316B (en) | 2020-04-01 | 2020-04-01 | Underwater wide-angle camera equipment |
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| CN111399316B true CN111399316B (en) | 2021-09-14 |
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