Multi-view camera

Abstract

The utility model provides a multi-view camera which comprises a front shell assembly and a rear shell assembly, the front shell assembly and the rear shell assembly are spliced in the vertical direction to form a cuboid shape, and the front shell assembly is located below the rear shell assembly; the front shell assembly comprises a front shell body which is provided with a first bottom surface forming the bottom surface of the cuboid shape and four assembling surfaces forming the side walls of the cuboid shape; the lens assemblies are installed on the assembling surfaces in a one-to-one correspondence mode, and the optical axis directions of the lens assemblies extend in the horizontal direction; wherein lenses of the lens assemblies at least partially protrude out of the side wall, so that the visual field ranges of the plurality of lens assemblies are combined to fully cover in the vertical direction and / or the horizontal direction.

Description

Technical Field

[0001] The utility model relates to the field of cameras, in particular to a multi-eye camera. Background Art

[0002] In order to achieve a wider shooting field of view, multiple cameras can be spliced ​​together. When four lenses are spliced ​​together, the lens is usually fixed inside the body, so the full angle coverage of the field of view cannot be achieved. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a multi-eye camera, the lenses of which protrude from the surface of the shell, so that the field of view of multiple lens assemblies can be combined into full-angle coverage in the vertical and horizontal directions.

[0004] In one embodiment of the present invention, a multi-camera is provided, comprising:

[0005] A front shell assembly and a rear shell assembly, wherein the front shell assembly and the rear shell assembly are assembled in a vertical direction to form a rectangular parallelepiped shape, and the front shell assembly is located below the rear shell assembly;

[0006] The front housing assembly comprises:

[0007] a front shell housing having a first bottom surface forming a bottom surface of the rectangular parallelepiped shape, and four fitting surfaces forming side walls of the rectangular parallelepiped shape; and

[0008] Lens assemblies, the lens assemblies are mounted on the mounting surface one by one, and the optical axis direction of the lens assemblies extends along the horizontal direction;

[0009] The lens of the lens assembly at least partially protrudes from the side wall, so that the field of view of the plurality of lens assemblies is combined to fully cover the vertical direction and / or the horizontal direction.

[0010] In one embodiment, the optical axis of the lens assembly is offset from the center of the mounting surface in the horizontal direction, and the optical axes of the plurality of lens assemblies are located in the same horizontal plane.

[0011] In one embodiment, the optical axes of the lens assemblies are located on the same side of the center of the mounting surface in the horizontal direction.

[0012] In one embodiment, the front housing assembly comprises:

[0013] a lens adapter, wherein the lens assembly is supported on the mounting surface via the lens adapter; and

[0014] A decorative cover, the decorative cover being assembled to the assembly surface to cover the lens adapter;

[0015] Wherein, the lens of the lens assembly at least partially protrudes from the decorative cover.

[0016] In one embodiment, the mounting surface comprises:

[0017] A center hole, wherein the center hole is used for the lens assembly to pass through;

[0018] A boss is located outside the central hole, and the lens adapter is assembled to the boss.

[0019] In one embodiment, the lens adapter comprises:

[0020] a first positioning post, the first positioning post protruding from a first surface of the lens adapter to be positioned and matched with the boss, the first surface facing the assembly surface; and / or

[0021] The second positioning column protrudes from the second surface of the lens adapter to be positioned and matched with the positioning hole of the lens assembly, and the second surface is away from the assembly surface.

[0022] In one embodiment, the lens adapter comprises:

[0023] A glue dispensing groove surrounds the central hole, and the glue dispensing groove is opened on the second surface of the lens adapter, and the second surface is away from the assembly surface.

[0024] In one embodiment, it includes:

[0025] A rubber stop strip, wherein in the direction of the optical axis, the rubber stop strip is limited between the lens assembly and the lens adapter, and in the radial direction of the center hole, the rubber stop strip is isolated between the glue dispensing groove and the center hole;

[0026] A limiting rib protrudes from the second surface of the lens adapter along the optical axis direction, and the limiting rib is limited to the outer edge of the rubber stop strip.

[0027] In one embodiment, it includes:

[0028] A sealing ring is located between the lens adapter and the assembly surface in the direction of the optical axis, and surrounds the center hole.

[0029] In one embodiment, the rear housing assembly comprises:

[0030] a rear shell housing having a second top surface forming the top surface of the rectangular parallelepiped shape, and four second side walls forming side walls of the rectangular parallelepiped shape;

[0031] Wherein, the rear shell body includes drain grooves, and each of the drain grooves is connected between the second top surface and one of the second side walls.

[0032] It can be seen from the above technical solutions that this embodiment provides a structural implementation solution for a four-eye stitching camera, and the overall shape of the camera is a rectangular parallelepiped. Four groups of lens assemblies 3 are evenly distributed on the four sides of the front cover assembly 1, and the lens of each lens assembly 3 protrudes outward from the surface of the front cover assembly 1, and the front cover assembly 1 is located at the bottom of the camera. In this way, the obstruction of the field of view by the fuselage structure can be minimized. Except for a part of the top area (the position directly above the rectangular parallelepiped), the device basically achieves a 720° blind-angle-free visual range, that is, 360° full coverage in the horizontal direction and 360° full coverage in the vertical direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The following drawings are only used to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0034] Figure 1 It is a structural schematic diagram of a multi-eye camera of the utility model.

[0035] Figure 2 It is a schematic diagram of the optical axis position of the multi-eye camera of the utility model.

[0036] Figure 3 It is a partial exploded schematic diagram of the multi-eye camera of the utility model.

[0037] Figure 4 It is a structural schematic diagram of the front shell body in the multi-eye camera of the utility model.

[0038] Figure 5 and Figure 6 It is a schematic diagram of a lens adapter in a multi-eye camera of the utility model.

[0039] Figure 7 and Figure 8 It is a partially enlarged schematic diagram of the multi-eye camera of the utility model.

[0040] Fig. 9 It is a partial schematic diagram of a multi-eye camera of the utility model. DETAILED DESCRIPTION

[0041] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation of the utility model is now described with reference to the accompanying drawings, in which the same reference numerals represent the same parts.

[0042] In this document, “exemplary” means “serving as an example, instance or illustration”, and any diagram or implementation described in this document as “exemplary” should not be interpreted as a more preferred or more advantageous technical solution.

[0043] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked.

[0044] In this document, “upper”, “lower”, “front”, “back”, “left”, “right”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0045] In this article, "first", "second", etc. are only used to distinguish each other, and do not indicate the importance and order, or the premise of each other's existence.

[0046] In this article, "equal", "same" and the like are not strictly limited in the mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use. Unless otherwise specified, the numerical ranges herein include not only the entire range within its two endpoints, but also several sub-ranges contained therein.

[0047] Example embodiments will now be described more fully with reference to the accompanying drawings.

[0048] like Figures 1 to 9 As shown, one embodiment of the utility model provides a multi-eye camera, comprising:

[0049] A front shell component 1 and a rear shell component 2, the front shell component 1 and the rear shell component 2 are assembled in a vertical direction to form a rectangular parallelepiped shape, and the front shell component 1 is located below the rear shell component 2;

[0050] The front housing assembly 1 comprises:

[0051] a front shell case 11 having a first bottom surface forming a bottom surface of a rectangular parallelepiped shape, and four fitting surfaces forming side walls of the rectangular parallelepiped shape; and

[0052] The lens assemblies 3 are mounted on the mounting surface one by one, and the optical axis direction of the lens assemblies 3 extends along the horizontal direction;

[0053] The lenses of the lens assembly 3 at least partially protrude from the side wall, so that the field of view of the plurality of lens assemblies 3 is combined to fully cover the vertical direction and / or the horizontal direction.

[0054] In this embodiment, a multi-eye camera is provided, comprising a front shell assembly 1 and a rear shell assembly 2 arranged in a vertical direction, wherein the front shell assembly 1 is located below the rear shell assembly 2. The lens assembly 3 is arranged in the front shell assembly 1, and the lens assembly 3 is located at the bottom of the entire camera. The lens of the lens assembly 3 protrudes from the side wall of the cuboid so that the shooting angle of the lens is not blocked by the shell.

[0055] Wherein, the cuboid has four side walls, and the front shell body 11 has four assembly surfaces, each assembly surface having an angle difference of 90° with an adjacent assembly surface. The four lens assemblies 3 are respectively mounted on the corresponding assembly surfaces, and the optical axis direction of each lens assembly 3 is the normal direction of the corresponding assembly surface. When the field of view angle of each lens assembly 3 in the horizontal direction is greater than 90°, full coverage in the horizontal direction can be achieved, that is, the range of the combined viewing angle is within the range of 0° to 360° in the horizontal direction. The window angle in the vertical direction is determined by the field of view angle of each lens assembly 3 in the vertical direction. When the field of view angle of each lens assembly 3 in the vertical direction is within the range of 0° to 360°, correspondingly, the multi-eye camera of this embodiment can also achieve full coverage of the angle in the vertical direction.

[0056] This embodiment provides a structural implementation scheme of a four-eye stitching camera, and the overall shape of the camera is a rectangular parallelepiped. Four groups of lens assemblies 3 are evenly distributed on the four sides of the front cover assembly 1, and the lens of each lens assembly 3 protrudes outward from the surface of the front cover assembly 1, and the front cover assembly 1 is located at the bottom of the camera. In this way, the obstruction of the field of view by the fuselage structure can be minimized. Except for a part of the top area (the position directly above the rectangular parallelepiped), the device basically achieves a 720° blind-angle-free visual range, that is, 360° full coverage in the horizontal direction and 360° full coverage in the vertical direction.

[0057] The multi-eye camera of this embodiment can be applied as an ordinary surveillance camera to achieve a larger shooting field of view; it can also be applied as a camera used in virtual reality (VR) equipment, thereby achieving higher application value at a lower cost.

[0058] Taking the optical axis L of the lens assembly as a reference, the four lens assemblies 3 are evenly distributed on the same horizontal plane, and the adjacent lens assemblies are at an angle of 90°. Furthermore, in order to improve the image stitching effect, the lens assemblies are arranged in a staggered manner. Among them, the optical axis L of the lens assembly 3 and the center of the corresponding front cover shell 11 do not overlap, and there is a certain amount of offset. Figure 2 As shown, after the offset, the lens assembly 3 can move inward in the optical axis direction to achieve the purpose of shortening the viewpoint distance between the lens assemblies 3.

[0059] Preferably, the optical axes L of the lens assemblies 3 are located on the same side of the center of the mounting surface in the horizontal direction. Then, in the circumferential direction with the vertical direction as the central axis, the optical axis L of each lens assembly 3 is offset from the center of the mounting surface in the same direction.

[0060] For example, the optical axis L of each lens assembly 3 is offset to the center of the corresponding mounting surface in a counterclockwise direction or a clockwise direction.

[0061] Wherein, the front shell component 1 comprises:

[0062] A lens adapter 12, through which the lens assembly 3 is supported on the mounting surface; and

[0063] A decorative cover 13, the decorative cover 13 is assembled to the assembly surface to cover the lens adapter 12;

[0064] The lens of the lens assembly 3 at least partially protrudes from the decorative cover 13 .

[0065] The lens assembly 3 is fixed to the lens adapter 12, the lens adapter 12 is fixed to the assembly surface of the front shell body 11, and the decorative cover 13 is assembled to the assembly surface. Specifically, the lens assembly 3 and the lens adapter 12 are fixed by screws, the lens adapter 12 and the front shell body 11 are fixed by screws, and the decorative cover 13 is assembled to the lens adapter 12 by buckles to cover the outer surface of the lens adapter 12.

[0066] Among them, the assembly surface includes:

[0067] A center hole 14, the center hole 14 is used for the lens assembly 3 to pass through;

[0068] The boss 15 is located outside the central hole 14 , and the lens adapter 12 is assembled to the boss 15 .

[0069] In order to ensure the verticality and flatness between the four groups of lens assemblies, the contact surface between the front cover shell 11 and the lens adapter 12 is optimized from large surface contact to small surface contact, the fixing position of the screw raises four small surfaces, and the boss 15 is used to reduce the contact area, which can make it easier to ensure the shape and position tolerances during part processing, and at the same time can reduce the processing amount and reduce the part cost; further, it can improve the image stitching effect.

[0070] The lens adapter 12 includes:

[0071] A first positioning post 121, the first positioning post 121 protrudes from a first surface of the lens adapter 12 to be positioned and matched with the boss 15, the first surface facing the assembly surface; and / or

[0072] The second positioning post 122 protrudes from the second surface of the lens adapter 12 to be positioned and matched with the positioning hole of the lens assembly 3 , and the second surface is away from the assembly surface.

[0073] The first positioning column 121 is used for installation positioning between the lens adapter 12 and the assembly surface, and the second positioning column 122 is used for installation positioning between the lens adapter 12 and the lens assembly 3. The installation and fixing accuracy of the lens 3 on the front cover shell is improved by controlling the gap and tolerance between the positioning column and the positioning hole.

[0074] In one embodiment, it includes:

[0075] The sealing ring 4 is located between the lens adapter 12 and the assembly surface in the optical axis direction, and the sealing ring 4 surrounds the central hole 14 .

[0076] The sealing ring 4 has an elastic deformation in the optical axis direction to absorb assembly tolerance.

[0077] The lens adapter 12 includes:

[0078] The glue dispensing groove 123 surrounds the central hole 14 and is opened on the second surface of the lens adapter 12 .

[0079] Further, including:

[0080] The rubber stopper 124 is located between the lens assembly 3 and the lens adapter 12 in the direction of the optical axis, and is isolated between the glue dispensing groove 123 and the center hole 14 in the radial direction of the center hole 14;

[0081] The limiting rib 125 protrudes from the second surface of the lens adapter 12 along the optical axis direction, and the limiting rib 125 is limited to the outer edge of the blocking rubber strip 124 .

[0082] This embodiment adopts a waterproof sealing solution for exposed lenses, in which the leakage points of the front cover assembly mainly include the lens body, the lens adapter and the front cover shell, the lens module and the lens adapter. The lens body is waterproof by adding a silicone sheet between the lens and the lens structure and pressing it tight. The waterproofing between the lens adapter and the front cover shell is achieved by pressing the silicone ring tight. The waterproofing between the lens module and the lens adapter is achieved by designing a glue groove in the lens adapter for glue waterproofing. Because one end of the lens module has been rigidly fixed by screws, the use of soft glue sealing at the lens end can avoid lens deflection force and avoid the risk of image out of focus. The multi-eye camera of this embodiment can achieve IPX7 level waterproof performance.

[0083] Furthermore, in order to ensure that the glue does not leak into the body, EVA foam is pasted on the adapter, and the glue blocking function is achieved by slightly interfering with the lens module, and ribs are added to the adapter to ensure that the EVA is pasted regularly; further, the glue dispensing groove is provided with a glue overflow notch. When the amount of glue is large, the glue overflow position can be controlled to prevent the overflow from affecting the assembly of the decorative cover.

[0084] In a preferred example, the rear housing assembly 2 includes:

[0085] A rear shell housing 21 having a second top surface forming a top surface of a rectangular parallelepiped shape and four second side walls forming side walls of a rectangular parallelepiped shape;

[0086] The rear shell body 21 includes drain grooves 22 , and each drain groove 22 is connected between the second top surface and a second side wall.

[0087] Drain grooves are provided on the sides of the rear cover assembly, which can be used to drain out water in time when rain and snow accumulate on the top of the equipment when it is used outdoors; further, in order to prevent the accumulated water from flowing into the gap between the lens decorative cover and the lens adapter and remaining there for a long time, notches are added at the corresponding positions of the lens decorative cover and the lower part of the lens adapter to allow the accumulated water to flow out smoothly.

[0088] It can be seen from the above technical solutions that this embodiment provides a structural implementation solution for a four-eye stitching camera, and the overall shape of the camera is a rectangular parallelepiped. Four groups of lens assemblies 3 are evenly distributed on the four sides of the front cover assembly 1, and the lens of each lens assembly 3 protrudes outward from the surface of the front cover assembly 1, and the front cover assembly 1 is located at the bottom of the camera. In this way, the obstruction of the field of view by the fuselage structure can be minimized. Except for a part of the top area (the position directly above the rectangular parallelepiped), the device basically achieves a 720° blind-angle-free visual range, that is, 360° full coverage in the horizontal direction and 360° full coverage in the vertical direction.

[0089] This embodiment adopts a waterproof sealing solution for the exposed lens, wherein the leakage points of the front cover assembly mainly include the lens body, the lens adapter and the front cover shell, the lens module and the lens adapter. The lens body is waterproof by adding a silicone sheet between the lens and the lens structure and pressing it tight to achieve interference fit, the waterproofing between the lens adapter and the front cover shell is achieved by pressing the silicone ring to achieve interference fit, and the waterproofing between the lens module and the lens adapter is achieved by designing a glue point groove in the lens adapter for glue waterproofing. Because one end of the lens module has been rigidly fixed by screws, the use of soft glue sealing at the lens end can avoid lens deflection force and avoid the risk of image out of focus.

[0090] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model, and are not intended to limit the scope of protection of the utility model. Any equivalent implementation plans or changes that do not deviate from the technical spirit of the utility model, such as combination, division or repetition of features, should be included in the scope of protection of the utility model.

Claims

1. A multi-camera, characterized in that: include: A front shell component (1) and a rear shell component (2), wherein the front shell component (1) and the rear shell component (2) are assembled in a vertical direction to form a rectangular parallelepiped shape, and the front shell component (1) is located below the rear shell component (2); The front housing assembly (1) comprises: a front shell case (11) having a first bottom surface forming the bottom surface of the rectangular parallelepiped shape, and four assembly surfaces forming side walls of the rectangular parallelepiped shape; and Lens assemblies (3), the lens assemblies (3) being mounted on the mounting surface in a one-to-one correspondence, and the optical axis direction of the lens assemblies (3) extending along the horizontal direction; The lens of the lens assembly (3) at least partially protrudes from the side wall, so that the field of view of a plurality of lens assemblies (3) is combined to provide full coverage in the vertical direction and / or the horizontal direction.

2. The multi-eye camera according to claim 1, characterized in that: The optical axis (L) of the lens assembly (3) is offset from the center of the mounting surface in the horizontal direction; The optical axes (L) of the plurality of lens assemblies (3) are located in the same horizontal plane.

3. The multi-eye camera according to claim 2, characterized in that: The optical axes (L) of the lens assemblies (3) are located on the same side of the center of the mounting surface in the horizontal direction.

4. The multi-eye camera according to claim 2 or 3, characterized in that: The front housing assembly (1) comprises: A lens adapter (12), wherein the lens assembly (3) is supported on the mounting surface via the lens adapter (12); and A decorative cover (13), the decorative cover (13) being assembled to the lens adapter (12) so as to cover the outer surface of the lens adapter (12); Wherein, the lens of the lens assembly (3) at least partially protrudes from the decorative cover (13).

5. The multi-eye camera according to claim 4, characterized in that: The mounting surface comprises: a central hole (14), wherein the central hole (14) is used for allowing the lens assembly (3) to pass through; A boss (15), wherein the boss (15) is located outside the central hole (14), and the lens adapter (12) is assembled to the boss (15).

6. The multi-eye camera according to claim 5, characterized in that: The lens adapter (12) comprises: a first positioning column (121), the first positioning column (121) protruding from a first surface of the lens adapter (12) to be positioned and matched with the boss (15), the first surface facing the assembly surface; and / or A second positioning column (122) protrudes from a second surface of the lens adapter (12) to be positioned and matched with a positioning hole of the lens assembly (3), and the second surface faces away from the assembly surface.

7. The multi-camera according to claim 5, characterized in that: The lens adapter (12) comprises: A glue dispensing groove (123), the glue dispensing groove (123) surrounds the central hole (14), and the glue dispensing groove (123) is opened on the second surface of the lens adapter (12), and the second surface is away from the assembly surface.

8. The multi-eye camera according to claim 7, characterized in that: include: A rubber stopper (124), wherein in the direction of the optical axis, the rubber stopper (124) is limited between the lens assembly (3) and the lens adapter (12), and in the radial direction of the center hole (14), the rubber stopper (124) is isolated between the glue dispensing groove (123) and the center hole (14); A limiting rib (125), wherein the limiting rib (125) protrudes from the second surface of the lens adapter (12) along the optical axis direction, and the limiting rib (125) is limited to the outer edge of the rubber stop strip (124).

9. The multi-eye camera according to claim 5, characterized in that: include: A sealing ring (4), wherein in the direction of the optical axis, the sealing ring (4) is located between the lens adapter (12) and the assembly surface, and the sealing ring (4) surrounds the central hole (14).

10. The multi-camera according to claim 1, characterized in that: The rear housing assembly (2) comprises: A rear shell body (21), the rear shell body (21) having a second top surface forming the top surface of the rectangular parallelepiped shape, and four second side walls forming the side walls of the rectangular parallelepiped shape; Wherein, the rear shell body (21) comprises drainage grooves (22), and each drainage groove (22) is connected between the second top surface and one of the second side walls.

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