Waterproof housing and videoing device

Abstract

The present application relates to a waterproof housing (10), comprising a housing structure (11) and a light-transmitting portion (12). The housing structure (11) is provided with an accommodating cavity, and the housing structure (11) is further provided with a viewfinder window (112) in communication with the accommodating cavity. The light-transmitting portion (12) is arranged on the viewfinder window (112) in a sealing manner; the light-transmitting portion (12) is provided with a light-incident surface (122) and a light-emitting surface (123) which are arranged opposite each other; the light-emitting surface (123) faces the viewfinder window (112); and the light-transmitting portion (12) can refract at least part of incident light, which has an included angle greater than 90 degrees with an optical axis of the light-transmitting portion (12), from the light-incident surface (122) to the viewfinder window (112).

Description

Waterproof housing and camera device Technical Field

[0001] The present application relates to the technical field of panoramic shooting devices, and in particular to a waterproof housing and a shooting device. Background Art

[0002] As people's living standards continue to improve, their expectations for photography devices are also increasing. Dual-lens panoramic cameras have emerged in related technologies to enhance the panoramic photography experience. These devices typically use two lenses placed back-to-back, each with a field of view of at least 180°. After capturing images, the two lenses are stitched together using an algorithm to create a panoramic image. Underwater panoramic cameras typically require a submersible housing for waterproofing.

[0003] However, when conventional panoramic shooting devices are used for underwater shooting, the diving shell easily blocks light, resulting in blind spots in the viewfinder, making it difficult to meet the light collection requirements for panoramic shooting.

[0004] Summary of the Invention

[0005] According to various embodiments of the present application, a waterproof housing and a photographing device are provided.

[0006] A waterproof housing, comprising:

[0007] A shell structure is provided with a receiving cavity, and the shell structure is further provided with a viewing window communicating with the receiving cavity; and

[0008] A light-transmitting portion is sealed in the viewfinder window, and the light-transmitting portion has a light entrance surface and a light exit surface arranged in opposite directions, the light exit surface faces the viewfinder window, and the light-transmitting portion can refract at least part of the incident light whose angle with the optical axis is greater than 90 degrees from the light entrance surface to the viewfinder window.

[0009] A photographing device comprises a photographing device and the waterproof housing as described above, wherein the photographing device is arranged in a receiving cavity of the waterproof housing.

[0010] A waterproof housing, comprising:

[0011] At least two light-transmitting portions, wherein the viewing angles of at least two of the light-transmitting portions partially overlap, and the sum of the viewing angles of the non-overlapping fields of the at least two light-transmitting portions is equal to 360 degrees;

[0012] a sealing assembly, sealedly connected to at least two of the light-transmitting portions, wherein the sealing assembly and the at least two light-transmitting portions together enclose a sealed cavity; and

[0013] The mounting member is accommodated in the sealed cavity and corresponds to the junction of the two light-transmitting portions, and the mounting member is used for mounting a shooting device.

[0014] A photographing device comprises a photographing device and the waterproof housing as described above, wherein the photographing device is arranged on the mounting member.

[0015] The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the invention will become apparent from the description, drawings, and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the disclosed drawings without any creative work.

[0017] FIG1 is a schematic structural diagram of a waterproof cover in some embodiments.

[0018] FIG2 is a partial cross-sectional schematic diagram of a waterproof cover in some embodiments.

[0019] FIG3 is a schematic structural diagram of a light-transmitting portion in some embodiments.

[0020] FIG4 is a schematic structural diagram of a waterproof cover in some other embodiments.

[0021] FIG5 is a schematic cross-sectional view of a waterproof cover in some other embodiments.

[0022] FIG6 is a schematic structural diagram of the light-transmitting portion in other embodiments.

[0023] FIG7 is a schematic structural diagram of a waterproof cover in some other embodiments.

[0024] FIG8 is a schematic cross-sectional view of a waterproof cover in some other embodiments.

[0025] FIG9 is a schematic structural diagram of the light-transmitting portion in some further embodiments.

[0026] FIG10 is a schematic structural diagram of a shooting device in some further embodiments.

[0027] FIG11 is an exploded schematic diagram of the photographing device shown in FIG10 .

[0028] FIG12 is a schematic cross-sectional view of the photographing device shown in FIG10 .

[0029] FIG13 is a partially enlarged schematic diagram of the first sealing member in the photographing device shown in FIG10 .

[0030] FIG14 is a partially enlarged schematic diagram of the light-transmitting portion of the photographing device shown in FIG10 .

[0031] FIG15 is a schematic structural diagram of the light-transmitting portion in the photographing device shown in FIG10 .

[0032] Reference numerals:

[0033] 10. Waterproof cover; 11. Shell structure; 112. Viewfinder window; 113. Connecting portion; 12. Light-transmitting portion; 121. Elevated portion; 122. Light incident surface; 123. Light exiting surface; 124. First lens; 125. Inner refractive surface; 126. Second lens; 127. Outer refractive surface; 128. Heat-insulating cavity; 129. Snap-fit ​​structure; 13. Incident light; 14. Outgoing light; 15. Intermediate light; 16. Sealing assembly; 161. First sealing member; 162. Second sealing member; 163. Sealing cavity; 164. Snap-fit ​​groove; 17. Mounting member; 171. Positioning groove; 18. Support element. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0035] Please refer to Figures 1 and 2. Figure 1 is a schematic diagram of the structure of a waterproof housing 10 in some embodiments, and Figure 2 is a schematic cross-sectional diagram of a portion of the structure of the waterproof housing 10 in some embodiments. The waterproof housing 10 provided in this application can be used to accommodate a photographic device, including but not limited to a panoramic camera, an action camera, etc., to form a photographic device. The waterproof housing 10 can provide waterproofing for the photographic device and can also receive external framing light and refract it toward the camera head of the panoramic camera within the waterproof housing 10, enabling the photographic device to achieve underwater photography capabilities.

[0036] Furthermore, in some embodiments, the waterproof cover 10 includes a shell structure 11 and a light-transmitting portion 12. The shell structure 11 is provided with a receiving cavity, and the shooting device is accommodated in the receiving cavity. The shell structure 11 is also provided with a viewfinder window 112 connected to the receiving cavity. When the shooting device is accommodated in the receiving cavity, the camera of the shooting device is arranged corresponding to the viewfinder window 112 so as to receive external framing light through the viewfinder window 112, and the rest of the shooting device is sealed by the shell structure 11. The light-transmitting portion 12 is sealed to the viewfinder window 112, and the light-transmitting portion 12 and the shell structure 11 together realize the waterproof sealing of the shooting device. The light-transmitting portion 12 has a light-entry surface 122 and a light-exiting surface 123 arranged in opposite directions. The light-exiting surface 123 is arranged toward the viewfinder 112. The light-transmitting portion 12 can refract at least part of the incident light 13 having an angle greater than 90 degrees with the optical axis from the light-entry surface 122 to the viewfinder 112.

[0037] Furthermore, in some embodiments, the number of viewfinder windows 112 provided on the shell structure 11 is at least two, and the number of light-transmitting portions 12 is also at least two, the light-transmitting portions 12 are provided in a one-to-one correspondence with the viewfinder windows 112, at least two light-transmitting portions 12 are sealed and provided in a one-to-one correspondence with the viewfinder window 112, the field of view angles of at least two light-transmitting portions 12 partially overlap, and the sum of the non-overlapping field of view angles of at least two light-transmitting portions 12 is equal to 360 degrees.

[0038] When the above-mentioned waterproof cover shell 10 is applied to a shooting device having a shooting device, the cooperation between the shell structure 11 and the light-transmitting portion 12 can effectively seal the receiving cavity for accommodating the shooting device, improve the waterproof performance of the shooting device, enable the shooting device to perform shooting operations normally underwater, and increase the service life of the shooting device. At the same time, the light-transmitting portion 12 can deflect at least part of the incident light 13 with an angle greater than 90 degrees with the optical axis to the viewfinder 112 for collection by the shooting device, so that the light-transmitting portion 12 can also have a sufficient field of view during underwater shooting operations, and will not be unable to shoot a panoramic view due to the obstruction of the shell structure 11, thereby meeting the light collection requirements for panoramic shooting. It can be understood that the shooting device can have at least two cameras, and the cameras can be set one-to-one corresponding to the light-transmitting portion 12, and the light-transmitting portion 12 can refract external light to the corresponding camera. The sum of the non-overlapping field of view angles of at least two light-transmitting portions 12 is equal to 360 degrees, and the field of view angles of at least two light-transmitting portions 12 overlap. This not only enables 360-degree panoramic photography, but the presence of overlapping fields of view also facilitates the algorithmic stitching of images from multiple cameras to form a panoramic image. Furthermore, when the shell structure 11 or a supporting element such as a selfie stick connected to the shell structure 11 is within the overlapping field of view of at least two light-transmitting portions 12, the shell structure 11 and supporting elements can be hidden through the algorithm, preventing them from blocking the viewfinder light or affecting the shooting effect.

[0039] In some embodiments, there are two light-transmitting portions 12, the two light-transmitting portions 12 face opposite to each other, and the optical axes of the two light-transmitting portions 12 coincide with each other. The shooting device may also include two cameras arranged in opposite directions, each camera facing the light-emitting surface 123 of a corresponding light-transmitting portion 12. When there are two light-transmitting portions 12, the field of view of each light-transmitting portion 12 is greater than or equal to 183 degrees. In other words, with reference to FIG2 , each light-transmitting portion 12 is capable of refracting at least part of the light having an angle greater than 91.5 degrees with the optical axis to the viewfinder 112 for reception by the camera. With such an arrangement, the two light-transmitting portions 12 have a sufficiently large field of view and can cooperate with each other to achieve panoramic shooting. At the same time, the two light-transmitting portions 12 also have a sufficiently large overlapping field of view so that the algorithm can better achieve the stitching of panoramic images and the hiding of structures such as the shell structure 11 and the supporting elements. Of course, in other embodiments, the optical axes of the two light-transmitting portions 12 may be parallel and staggered to accommodate diverse structural layouts of camera equipment and housing structure 11, thereby increasing the design flexibility of waterproof housing 10, as long as the two light-transmitting portions 12 cooperate to achieve panoramic photography. It is understood that the optical axis of the light-transmitting portion 12 may overlap with the optical axis of the corresponding camera.

[0040] It is understood that when two light-transmitting portions 12 are provided, two cameras can also be provided. Multiple cameras can be used individually or simultaneously. When two cameras are used simultaneously, two cameras with a viewing angle greater than 180 degrees are placed back-to-back to capture images of opposing viewing angles. These 180-degree images are then synthesized and stitched together using an algorithm to produce a panoramic image, i.e., an image with a 360-degree viewing angle. The camera can capture both photos and videos, so the resulting stitched panoramic image can be either a static image or a dynamic video.

[0041] In some embodiments, the light-transmitting portion 12 is capable of refracting at least one incident light ray 13 into an outgoing light ray 14, where the angle between the outgoing light ray 14 and the incident light ray 13 is less than a first predetermined angle. The first predetermined angle can be set based on actual precision requirements. In some embodiments, the first predetermined angle is less than or equal to 5 degrees. As a result, the outgoing light ray 14 formed by the light-transmitting portion 12 can be directed toward the camera in a direction substantially parallel to the incident light ray 13, thereby reducing image distortion and improving the imaging quality of the camera. In some embodiments, for example, where the light-transmitting portion 12 is an aspherical lens, achieving an angle between the outgoing light ray 14 and the incident light ray 13 less than the first predetermined angle can be achieved by adjusting the curvature of the lens to meet the refraction requirements. Furthermore, in some embodiments, the first predetermined angle is less than or equal to 2 degrees, further improving the imaging quality of the camera. In some embodiments, the first predetermined angle is less than or equal to 1 degree, further improving the imaging quality of the camera. In some embodiments, the outgoing light ray is substantially parallel to the incident light ray, for example, the first predetermined angle is 0 degrees.

[0042] In some embodiments, in the radially outward direction along the optical axis, for example, in the direction along the optical axis from the camera toward the light-transmitting portion 12, the effective light entrance aperture of the light-entering surface 122 is higher than the outer surface of the shell structure 11. This allows light rays with an angle greater than 90 degrees with the optical axis to be better received by the light-transmitting portion 12 and less likely to be blocked by the shell structure 11, thereby improving the field of view of the waterproof cover 10. In some embodiments, the effective light entrance aperture of the light-entering surface 122 can be made higher than the outer surface of the shell structure 11 by increasing the distance between the light-entering surface 122 and the outer surface of the shell structure 11. For example, in some embodiments, the light-transmitting portion 12 is provided with a raised portion 121 connected to the shell structure 11. The raised portion 121 can be integrally formed with the main structure of the light-transmitting portion 12, or the shell structure 11 can be provided with a raised portion 121 connected to the light-transmitting portion 12 to increase the distance between the light-entering surface 122 and the outer surface of the shell structure 11. When the raised portion 121 is provided on the shell structure 11 , the raised portion 121 includes but is not limited to a boss or a gasket connected to the end of the light-transmitting portion 12 .

[0043] In some embodiments, in the radially outward direction along the optical axis, the effective light entrance diameter of the light entrance surface 122 is higher than the effective light exit diameter of the light exit surface 123, so that the light-transmitting portion 12 can refract light from a high position to a low position, so that the camera of the shooting device located at a low position can better receive light, meeting the framing requirements of panoramic photography. In some embodiments, due to the provision of the elevated portion 121, in the direction of the optical axis, the height difference between the incident point of the incident light 13 and the outer surface of the shell structure 11 is greater than the height difference between the exit point of the outgoing light 14 and the outer surface of the shell structure 11, so that the shooting device does not need to protrude or protrude excessively from the outer surface of the shell structure 11 to receive the light refracted by the light-transmitting portion 12, which is conducive to the miniaturization of the waterproof cover 10 and also helps the waterproof cover 10 to be compatible with most panoramic shooting devices.

[0044] In some embodiments, the shell structure 11 is located outside the field of view of the light-transmitting portion 12, or the shell structure 11 is partially located outside the field of view of the light-transmitting portion 12, and the other portion is located within the overlapping field of view of at least two light-transmitting portions 12. The portion of the shell structure 11 located outside the field of view of the light-transmitting portion 12 will not block the light-transmitting portion 12 from collecting framing light, and the light-transmitting portion 12 will not capture an image of the shell structure 11. The portion of the shell structure 11 located within the overlapping field of view of at least two light-transmitting portions 12 can be hidden through an algorithm, so that the final panoramic image does not include the portion of the shell structure 11, thereby preventing the shell structure 11 from affecting the shooting effect of the shooting device.

[0045] In some embodiments, the shell structure 11 further includes a connecting portion 113 connected to the main portion of the shell structure 11, and the connecting portion 113 is used to connect a supporting element such as a selfie stick, so that the user can hold the shooting device by the supporting element. In some embodiments, when the connecting portion 113 is connected to the supporting element, the supporting element is located within the overlapping field of view of at least two light-transmitting portions 12, or a portion of the supporting element is located outside the field of view of the light-transmitting portion 12, and another portion is located within the overlapping field of view of at least two light-transmitting portions 12. Thus, the image of the portion of the supporting element located outside the field of view of the light-transmitting portion 12 will not be captured by the light-transmitting portion 12, and the image of the portion located within the overlapping field of view of at least two light-transmitting portions 12 can be hidden through an algorithm, so that the panoramic image acquired by the shooting device does not include the portion of the supporting element, thereby preventing the supporting element from affecting the shooting effect of the shooting device.

[0046] In one embodiment, at least one of the light incident surface 122 and the light emitting surface 123 of the light-transmitting portion 12 is an aspherical surface.

[0047] In some embodiments, the light incident surface 122 and the light exit surface 123 of the light transmitting portion 12 are both aspherical surfaces, which can enhance the flexibility of the surface design of the light transmitting portion 12. This is beneficial for improving the image clarity, distorted visual field, narrow field of view and other undesirable phenomena while achieving the refraction requirements of light by adjusting the surface shape, curvatures at various locations and aspheric coefficients of the light transmitting portion 12, thereby improving the imaging quality.

[0048] As shown in Figures 1, 2, and 3, the light entrance surface 122 is a convex and aspherical surface, the light exit surface 123 is a concave and aspherical surface, and the thickness of the light-transmitting portion 12 at the effective light entrance aperture is greater than the thickness at the center. With this arrangement, the shape of the light-transmitting portion 12 can be reasonably designed, which is conducive to improving the light-transmitting portion 12's ability to deflect large-angle light, such as the light-transmitting portion 12's ability to deflect light with an angle greater than 90 degrees with its optical axis. This allows the light-transmitting portion 12 to deflect at least a portion of the incident light 13 with an angle greater than 90 degrees with the optical axis to the viewfinder 112 for capture by the camera. This ensures that the light-transmitting portion 12 has a sufficient field of view during underwater photography operations, and will not be unable to capture a panoramic view due to obstruction by the shell structure 11, thereby meeting the light collection requirements for panoramic photography. Furthermore, in some embodiments, the ratio of the thickness of the light-transmitting portion 12 at the effective light incident aperture to the center thickness is greater than 1.5, and the edge portion of the light-transmitting portion 12 has sufficient thickness to deflect light, thereby having a sufficient field of view angle.

[0049] In the embodiment shown in Figures 1 to 3, when there are two light-transmitting portions 12, the light-transmitting portions 12 can satisfy the conditional formula: 1.101≤R1 / R2≤1.293; wherein R1 is the radius of curvature of the light-entering surface 122 at the center (i.e., at the optical axis), and R2 is the radius of curvature of the light-emitting surface 123 at the center (i.e., at the optical axis). When the above conditional formula is satisfied, the curvature radii of the light-entering surface 122 and the light-emitting surface 123 of the light-transmitting portion 12 can be reasonably configured, so that the light-entering surface 122 and the light-emitting surface 123 can form a good match, the light-entering surface 122 can effectively deflect large-angle light to the light-emitting surface 123, and the light-emitting surface 123 can cooperate with the light-entering surface 122 to reasonably configure the light collected by the light-entering surface 122, thereby improving the field of view of the light-transmitting portion 12 while suppressing the generation of aberrations such as distortion, thereby improving the imaging quality of the shooting device.

[0050] In the embodiment shown in Figures 1-3 , when two light-transmitting portions 12 are provided, light-transmitting portions 12 may also satisfy the conditional equation: 1.135 < D1 / D2 ≤ 1.333; where D1 is the effective light-entry aperture of light-entry surface 122, and D2 is the effective light-exit aperture of light-exit surface 123. When this conditional equation is satisfied, the effective apertures of light-entry surface 122 and light-exit surface 123 are rationally configured, providing light-transmitting portion 12 with a sufficient light-collecting range. This improves the field of view of light-transmitting portion 12 and meets the requirements of panoramic photography. It also reduces the step difference between the effective apertures of light-entry surface 122 and light-exit surface 123, thereby suppressing the generation of aberrations such as distortion and improving the imaging quality of the camera.

[0051] In the embodiment shown in Figures 1-3 , when two light-transmitting portions 12 are provided, the light-transmitting portions 12 may also satisfy the conditional equation: 1.458 ≤ Nd ≤ 1.712, where Nd is the refractive index of the light-transmitting portion 12. When this conditional equation is satisfied, the light-transmitting portion 12 has sufficient refractive power to accommodate underwater photography, where the refractive index of water is significantly higher than that of air. Furthermore, during underwater photography, the light-transmitting portion 12 can effectively refract wide-angle light rays toward the viewfinder 112 for reception by the camera of the device, thereby satisfying the requirements for underwater panoramic photography.

[0052] Referring to Figure 3, in some embodiments, the various parameters of the light-transmitting portion 12 are shown in Table 1 below, wherein the data in the first row are the parameters of the light-incident surface 122, the data in the second row are the data of the light-emitting surface 123, R is the curvature radius of the corresponding surface at the center, D is the effective aperture of the corresponding surface, Nd is the refractive index of the light-transmitting portion 12, ABV is the Abbe number of the light-transmitting portion 12, and Conic is the cone coefficient of the corresponding surface.

[0053] Table 1

[0054] The aspheric coefficients of the light-transmitting portion 12 are given in Table 2 below, where K represents the cone coefficient, A4 represents the fourth-order aspheric coefficient, and A6 represents the sixth-order aspheric coefficient. In addition, the aspheric coefficient formula is as follows:

[0055] Where Z is the distance from the corresponding point on the aspheric surface to the plane tangent to the vertex of the surface, r is the distance from the corresponding point on the aspheric surface to the optical axis 110, c is the curvature of the aspheric vertex, K is the cone coefficient, and Ai is the coefficient corresponding to the i-th higher-order term in the aspheric surface shape formula. It should be noted that the aspheric coefficients in Table 2 all provide a certain range of values. If the light-transmitting portion 12 falls within the range shown in Table 2, it can meet the requirements of light refraction and thus meet the requirements of panoramic photography. For example, the values ​​can be set to the ends of the range or the middle value.

[0056] Table 2

[0057] Referring to Figures 4, 5, and 6, in some embodiments, the light-transmitting portion 12 includes a first lens 124 and a second lens 126 disposed on the side of the first lens 124 facing the viewfinder 112. The light-transmitting portion 12 is capable of refracting at least a portion of the incident light 13 incident from the first lens 124 into an outgoing light 14 emitted from the second lens. Both the first lens 124 and the second lens 126 are lenses with optical power. The first lens 124 and the second lens 126 provided in the light-transmitting portion 12 cooperate to deflect light, thereby improving the light-transmitting portion 12's ability to deflect wide-angle light, thereby increasing the light-collecting range of the light-transmitting portion 12. This allows the light-transmitting portion 12 to have a sufficient field of view even during underwater photography, meeting the light-collecting requirements for panoramic photography. Furthermore, the two lenses provided in the light-transmitting portion 12 not only collect wide-angle light but also smooth the transition of light, reducing the angle of light deflection on each surface of the light-transmitting portion 12. This helps suppress aberrations and improves the imaging quality of the light-transmitting portion 12.

[0058] It can be understood that in the embodiment shown in Figure 5, when the light-transmitting portion 12 is provided with a raised portion 121, the raised portion 121 can be provided at the end of the first lens 124 and connected to the shell structure 11, and when the shell structure 11 is provided with a raised portion 121, the raised portion 121 of the shell structure 11 can surround the first lens 124 and be connected to the end of the first lens 124 to raise the light incident surface 122 of the first lens 124, so that light with a large angle can be smoothly incident on the first lens and is not easily blocked by other structures such as the shell structure 11.

[0059] In some embodiments, the first lens 124 is capable of refracting the incident light 13 into an intermediate light 15. In other words, after the incident light 13 enters the first lens 124, it is refracted by the first lens 124 to form the intermediate light 15, which then exits the first lens 124. The intermediate light 15 then enters the second lens 126 and is refracted by the second lens 126 to form the outgoing light 14. The angle between the intermediate light 15 and the outgoing light 14 is greater than the first predetermined angle. This not only facilitates the proper transition of light through the light-transmitting portion 12, but also ensures that after the light-transmitting portion 12 smoothly refracts the incident light 13 into the outgoing light 14, the angle between the incident light 13 and the outgoing light 14 is less than the first predetermined angle, thereby suppressing the generation of aberrations such as distortion and improving the imaging quality of the camera device. In one embodiment, the angle between the intermediate light 15 and the optical axis of the light-transmitting portion 12 is greater than the angle between the outgoing light 13 and the optical axis of the light-transmitting portion 12. In other words, the first lens 124 refracts the incident light 13 to produce an intermediate light 15. However, the intermediate light 15 has not yet reached the target refraction angle. The second lens 126 then further refracts the intermediate light 15 to form an outgoing light 14 that meets the target refraction angle. Of course, in other embodiments, the deflection angle of the intermediate light 15 may exceed the target refraction angle, and the second lens 126 may further correct the intermediate light 15 to form an outgoing light 14 that meets the target refraction angle.

[0060] In some embodiments, in the radial outward direction along the optical axis, the incident point of the incident light 13 on the first lens 124 is higher than the exit point of the intermediate light 15 on the first lens 124, and the incident point of the intermediate light 15 on the second lens 126 is higher than the exit point of the outgoing light 14 on the second lens 126, so that the light-transmitting portion 12 can reasonably refract the light from a high place to a low place through the first lens 124 and the second lens 126, so that the camera of the shooting equipment can smoothly receive the framing light and meet the needs of panoramic shooting.

[0061] As shown in Figure 5, in some embodiments, the second lens 126 covers the viewfinder 112, and the edge of the first lens 124 and the edge of the second lens 126 are arranged to fit together to form an insulating cavity 128, thereby preventing dust, water vapor or other debris from entering the gap between the first lens 124 and the second lens 126, which is beneficial to improving the shooting effect of the shooting device.

[0062] Furthermore, in some embodiments, the heat conduction efficiency of a medium such as air within the heat-insulating cavity 128 is lower than that of the first lens 124 and the second lens 126. Thus, by spacing the first lens 124 and the second lens 126 apart and enclosing the heat-insulating cavity 128, the heat conduction efficiency between the light-entering surface 122 of the first lens 124 and the light-emitting surface 123 of the second lens 126 can be reduced, thereby enhancing the heat insulation performance of the light-transmitting portion 12. It is understood that when the waterproof housing 10 is used underwater, due to the relatively low underwater temperature and the heat generated by the camera equipment, the temperature inside the waterproof housing 10 may be higher than the external water temperature. Although the temperature of the light-entering surface 122 of the first lens 124 may be comparable to the water temperature, the reduced heat conduction efficiency of the light-transmitting portion 12 prevents the temperature of the light-emitting surface of the second lens 126 from being too low. This prevents the temperature of the second lens 126 from being lower than the temperature inside the housing cavity of the waterproof housing 10, which could cause fogging, thereby improving the shooting effect.

[0063] In some embodiments, the insulation cavity 128 is in a vacuum state, or is filled with an insulating medium. The insulating medium includes, but is not limited to, an insulating gas or other medium that does not affect the photographic effect, such as one or a combination of carbon dioxide, methane, argon, and krypton. It should be noted that when the waterproof housing 10 is a diving shell, the diving time may be as long as ten minutes. In some embodiments, the insulation cavity 128 is in a vacuum state to improve the insulation effect and prevent the moisture in the insulation cavity 128 from fogging the first lens 124 or the second lens 126, thereby affecting the photographic quality.

[0064] In one embodiment, the average curvature of the inner refractive surface 125 of the first lens 124 (i.e., the surface of the first lens 124 facing the viewfinder 112) is greater than the average curvature of the outer refractive surface 127 of the second lens 126 (i.e., the surface of the second lens 126 facing away from the viewfinder 112). This allows the center spacing of the first lens 124 and the second lens 126 to be greater than the edge spacing. This results in the central portion of the heat-insulating cavity 128 being larger than the edge spacing in a direction parallel to the optical axis. In other words, the heat-insulating cavity 128 is generally almond-shaped. This helps increase the volume of the heat-insulating cavity 128 and the spacing between the center portion of the first lens 124 and the center portion of the second lens 126, thereby enhancing the heat-insulating performance of the light-transmitting portion 12 and improving the fog suppression effect.

[0065] In some embodiments, at least one of the light incident surface 122 , the inner refractive surface 125 , the outer refractive surface 127 , and the light emitting surface 123 is an aspherical surface.

[0066] In some embodiments, the first lens element 124 has a light-entering surface 122 and an inner refractive surface 125 disposed in opposite directions, and the second lens element 126 has an outer refractive surface 127 and a light-emitting surface 123 disposed in opposite directions. The inner refractive surface 125 and the light-emitting surface 123 all face the viewfinder 112. The light-entering surface 122, the inner refractive surface 125, the outer refractive surface 127, and the light-emitting surface 123 are all aspherical surfaces, with the light-entering surface 122 being convex, the inner refractive surface 125 being concave, the outer refractive surface 127 being convex, and the light-emitting surface 123 being concave. With this configuration, the surface shapes of the various surfaces of the light-transmitting portion 12 can be rationally designed, enabling the light-transmitting portion 12 to properly deflect light at large angles. This not only improves the light-collecting capability of the light-transmitting portion 12, thereby increasing the field of view of the light-transmitting portion 12 to meet the requirements of panoramic photography, but also enables the first lens element 124 and the second lens element 126 to form a good synergy to smooth the transition of light, suppress the generation of aberrations such as distortion, and thus improve the imaging quality of the camera device.

[0067] In some embodiments, when two light-transmitting portions 12 are provided, and two lenses with optical power are provided in the light-transmitting portion 12, the light-transmitting portion 12 may satisfy the conditional equation: 1.028 ≤ f1 / f2 ≤ 2.011, where f1 is the focal length of the first lens 124, and f2 is the focal length of the second lens 126. When this conditional equation is satisfied, the focal lengths of the first lens 124 and the second lens 126 can be appropriately configured, ensuring that the first lens has sufficient refractive power to deflect light at a large angle. Furthermore, the first lens 124 and the second lens 126 can effectively cooperate to smooth the transition of light, suppressing the generation of aberrations such as distortion, thereby improving the imaging quality of the camera device.

[0068] In some embodiments, when two light-transmitting portions 12 are provided, and two lenses with optical power are provided on light-transmitting portions 12, light-transmitting portions 12 may satisfy the conditional equation: 1.681 ≤ DS1 / DS4 ≤ 1.973, where DS1 is the effective light-entry aperture of light-entry surface 122, and DS4 is the effective light-exit aperture of light-exit surface 123. When this conditional equation is satisfied, the effective apertures of light-entry surface 122 and light-exit surface 123 can be properly configured, resulting in a sufficiently large aperture for light-transmitting portion 12 to receive light at wide angles, meeting the requirements of panoramic photography. This also reduces the step difference in the effective apertures of the various surfaces of light-transmitting portion 12, thereby suppressing aberrations such as distortion and improving the imaging quality of the camera device.

[0069] In some embodiments, when two light-transmitting portions 12 are provided, each with two lenses having optical power, the light-transmitting portion 12 may satisfy the following conditions: 1.371 ≤ Nd1 ≤ 1.609; 1.371 ≤ Nd2 ≤ 1.609, where Nd1 is the refractive index of the first lens 124, and Nd2 is the refractive index of the second lens 126. When these conditions are met, the light-transmitting portion 12 has sufficient refractive power to accommodate underwater photography, where the refractive index of water is significantly higher than that of air. Furthermore, during underwater photography, the light-transmitting portion 12 can effectively refract wide-angle light rays to the viewfinder 112 for reception by the camera of the device, thereby meeting the requirements for underwater panoramic photography.

[0070] 5 , in some embodiments, the parameters of the light-transmitting portion 12 are shown in Table 3 below, wherein the data in the first row are parameters of the light incident surface 122 of the first lens 124, the data in the second row are parameters of the outer refractive surface 127 of the first lens 124, the data in the third row are parameters of the outer refractive surface 127 of the second lens 126, and the data in the fourth row are data of the light-emitting surface 123 of the second lens 126. R is the radius of curvature of the corresponding surface at the center, D is the effective aperture of the corresponding surface, Nd is the refractive index of the corresponding lens, ABV is the Abbe number of the corresponding lens, and Conic is the conic coefficient of the corresponding surface.

[0071] Table 3

[0072] The aspheric coefficients of the light-transmitting portion 12 are given in Table 4 below, where K represents the cone coefficient, A4 represents the fourth-order aspheric coefficient, A6 represents the sixth-order aspheric coefficient, A8 represents the eighth-order aspheric coefficient, and A10 represents the tenth-order aspheric coefficient. Furthermore, the aspheric coefficient formula is as follows:

[0073] Where Z is the distance from the corresponding point on the aspheric surface to the plane tangent to the vertex of the surface, r is the distance from the corresponding point on the aspheric surface to the optical axis 110, c is the curvature of the aspheric vertex, K is the cone coefficient, and Ai is the coefficient corresponding to the i-th higher-order term in the aspheric surface shape formula. It should be noted that the aspheric coefficients in Table 4 all provide a certain range of values. If the light-transmitting portion 12 falls within the range shown in Table 4, it can meet the requirements of light refraction and thus meet the requirements of panoramic photography. For example, the values ​​can be set to the ends of the range or the middle value.

[0074] Table 4

[0075] In some embodiments, when the light-transmitting portion 12 is provided with two lenses, the light-transmitting portion 12 satisfies: the focal length f1 of the first lens 124 = -201.608 mm; the focal length f2 of the second lens 126 = -180.44 mm; the focal length of the light-transmitting portion 12 (i.e., the combined focal length of the first lens 124 and the second lens 126) f = -93.15 mm.

[0076] Please refer to Figures 7, 8 and 9. In some embodiments, the light-transmitting portion 12 is roughly flat, and the extension direction of the middle portion of the light-transmitting portion 12 is roughly parallel to the plane perpendicular to the optical axis. For example, the extension direction of the portion of the light-transmitting portion 12 near the optical axis is roughly parallel to the plane perpendicular to the optical axis. Such an arrangement can greatly compress the volume of the light-transmitting portion 12, thereby compressing the volume of the waterproof cover 10 and improving the user experience. Furthermore, in some embodiments, the curvature radius of the light-entering surface 122 and the light-emitting surface 123 of the light-transmitting portion 12 at the center (at the optical axis) is infinite, that is, the light-entering surface 122 and the light-emitting surface 123 tend to be flat at the center. Furthermore, in some embodiments, the surface shape of the light-entering surface 122 at the circumference is convex, and the surface shape of the light-emitting surface 123 at the circumference is concave. Such a setting can not only improve the refractive ability of the light-transmitting portion 12 to improve the field of view of the light-transmitting portion 12 and meet the needs of panoramic shooting, but also make the light-transmitting portion 12 roughly flat, which is conducive to compressing the size of the light-transmitting portion 12 in the direction of the optical axis, so that the light-transmitting portion 12 will not protrude too much from the shell structure 11, thereby helping to improve the use experience and scope of application of the waterproof cover 10.

[0077] In some embodiments, when two light-transmitting portions 12 are provided, each light-transmitting portion 12 satisfies the conditional equation: 1.159 ≤ D1 / D2 ≤ 1.361, where D1 is the effective light-entry aperture of the light-entry surface 122, and D2 is the effective light-exit aperture of the light-exit surface 123. When this conditional equation is satisfied, the effective apertures of the light-entry surface 122 and the light-exit surface 123 are properly configured, ensuring that the light-transmitting portion 12 has a sufficient light-collecting range. This improves the field of view of the light-transmitting portion 12 and meets the requirements of panoramic photography. Furthermore, the step difference between the effective apertures of the light-entry surface 122 and the light-exit surface 123 can be reduced, thereby suppressing the generation of aberrations such as distortion and improving the imaging quality of the camera device.

[0078] In some embodiments, when two light-transmitting portions 12 are provided, each light-transmitting portion 12 satisfies the conditional equation: 1.371 ≤ Nd ≤ 1.609, where Nd is the refractive index of the light-transmitting portion 12. When this conditional equation is satisfied, the light-transmitting portion 12 has sufficient refractive power to accommodate underwater photography, where the refractive index of water is much higher than that of air. Furthermore, during underwater photography, the light-transmitting portion 12 can effectively refract wide-angle light rays to the viewfinder 112 for reception by the camera of the shooting device, thereby meeting the requirements for underwater panoramic photography.

[0079] 8 and 9 , in some embodiments, the various parameters of the light-transmitting portion 12 are shown in Table 5 below, wherein the data in the first row are the parameters of the light-entering surface 122 , the data in the second row are the data of the light-emitting surface 123 , R is the radius of curvature of the corresponding surface at the center, D is the effective aperture of the corresponding surface, Nd is the refractive index of the light-transmitting portion 12 , ABV is the Abbe number of the light-transmitting portion 12 , and Conic is the cone coefficient of the corresponding surface.

[0080] Table 5

[0081] The aspheric coefficients of the light-transmitting portion 12 are given in Table 6 below, where K represents the cone coefficient, A4 represents the fourth-order aspheric coefficient, A6 represents the sixth-order aspheric coefficient, A8 represents the eighth-order aspheric coefficient, and so on. In addition, the aspheric coefficient formula is as follows:

[0082] Where Z is the distance from the corresponding point on the aspheric surface to the plane tangent to the vertex of the surface, r is the distance from the corresponding point on the aspheric surface to the optical axis 110, c is the curvature of the aspheric vertex, K is the cone coefficient, and Ai is the coefficient corresponding to the i-th higher-order term in the aspheric surface shape formula. It should be noted that the aspheric coefficients in Table 6 provide a certain range of values. If the light-transmitting portion 12 falls within the range shown in Table 6, it can meet the requirements of light refraction and thus meet the requirements of panoramic photography. For example, the values ​​can be set to the ends of the range or the middle value.

[0083] Table 6

[0084] Referring to Figures 10, 11, and 12, in some embodiments, the waterproof housing 10 includes at least two light-transmitting portions 12. The fields of view of the at least two light-transmitting portions 12 partially overlap, and the sum of the non-overlapping fields of view of the at least two light-transmitting portions 12 is equal to 360 degrees. Each light-transmitting portion 12 has a light-entry surface 122 and a light-exiting surface 123 disposed opposite each other. The light-exiting surface 123 faces the camera. The light-transmitting portion 12 is capable of refracting light incident on the light-entry surface 122 and emitting it from the light-exiting surface 123 for reception by the camera of the camera. The waterproof housing 10 also includes a sealing assembly 16 and a mounting member 17. The sealing assembly 16 is sealedly connected to the at least two light-transmitting portions 12. The sealing assembly 16 and the at least two light-transmitting portions 12 together enclose a sealed cavity 163. The mounting member 17 is housed in the sealed cavity 163 and is positioned at the intersection of the two light-transmitting portions 12. For example, the mounting member 17 is positioned corresponding to the position of the sealing assembly 16 along the optical axis. The mounting member 17 is used to mount a photographing device. In other words, when the photographing apparatus uses the light-transmitting portion 12 described in this embodiment, the photographing device is accommodated in a sealed cavity 163 formed by sealing at least two light-transmitting portions 12 and the sealing assembly 16 .

[0085] When the above-mentioned waterproof cover 10 is applied to a photographing device having a photographing device, the cooperation between the two light-transmitting parts 12 and the sealing assembly 16 can effectively seal the photographing device, improve the waterproof performance of the photographing device, enable the photographing device to perform normal photographing operations underwater, and increase the service life of the photographing device. At the same time, by accommodating the photographing device in the sealed space formed by the two light-transmitting parts 12 and the sealing assembly 16, the two light-transmitting parts 12 can replace the traditional diving shell, which can improve the waterproof performance while also avoiding the situation where the diving shell blocks light to the greatest extent, which is conducive to the realization of panoramic photography. In addition, the arrangement of the light-transmitting part 12 to accommodate the photographing device allows the light-transmitting part 12 to have a sufficiently large light-collecting area, which is conducive to reducing the burden of the light-transmitting part 12 on deflecting light. While improving the function of the light-transmitting part 12 in collecting large-angle light, it can also reduce the design and manufacturing difficulty of the light-transmitting part 12.

[0086] It is understandable that the shooting device may include at least two cameras, and the at least two cameras are arranged in a one-to-one correspondence with the at least two light-transmitting portions 12 to receive the light deflected by the corresponding light-transmitting portions 12. The field of view angles of at least two of the light-transmitting portions 12 partially overlap, and the sum of the field of view angles of the non-overlapping fields of view of at least two of the light-transmitting portions 12 is equal to 360 degrees. The at least two light-transmitting portions 12 cooperate to achieve panoramic shooting, and the existence of the overlapping field of view makes it easier to stitch images obtained by different cameras into a panoramic image through an algorithm. At the same time, the algorithm can also hide the components in the shooting device within the overlapping field of view, thereby improving the panoramic shooting effect. The mounting member 17 corresponds to the position where the two light-transmitting portions 12 intersect, making it less likely that the mounting member 17 will block the framing light, thereby better achieving panoramic shooting. At the same time, it can also make the portion of the mounting member 17 within the field of view within the overlapping field of view of at least two light-transmitting portions 12, thereby enabling the mounting member 17 to be hidden through the algorithm, thereby improving the shooting effect.

[0087] It is understood that the multiple cameras of a filming device can be used individually or simultaneously. When two cameras are used simultaneously, two cameras with a viewing angle greater than 180 degrees are placed back-to-back to capture images with opposite viewing angles. These 180-degree images are then stitched together using an algorithm to create a panoramic image, i.e., an image with a 360-degree viewing angle. The filming device can capture both photos and videos, so the resulting panoramic image can be either a static image or a dynamic video.

[0088] In some embodiments, the waterproof housing 10 is provided with two light-transmitting portions 12, with the ends of the two light-transmitting portions 12 disposed opposite each other. A sealing assembly 16 is disposed between the two light-transmitting portions 12 and is sealed to each of the two light-transmitting portions 12. When two light-transmitting portions 12 are provided, the two light-transmitting portions 12 can be disposed opposite each other with their optical axes overlapping, so that the algorithm can better stitch the images captured by the two light-transmitting portions 12 into a panoramic image. Furthermore, in some embodiments, the field of view of each light-transmitting portion 12 is greater than or equal to 183 degrees. In other words, each light-transmitting portion 12 can refract at least a portion of light with an angle greater than 91.5 degrees with the optical axis to the viewfinder 112 for reception by the camera. With this arrangement, the two light-transmitting portions 12 have a sufficiently large field of view to cooperate with each other to achieve panoramic photography. At the same time, the two light-transmitting portions 12 also have a sufficiently large overlapping field of view to facilitate the algorithm to better stitch the panoramic image and hide components within the overlapping field of view. Of course, in other embodiments, the optical axes of the two light-transmitting portions 12 may be parallel and staggered to accommodate diverse structural layouts of camera equipment and housing structure 11, thereby increasing the design flexibility of waterproof housing 10, as long as the two light-transmitting portions 12 cooperate to achieve panoramic photography. It is understood that the optical axis of the light-transmitting portion 12 may overlap with the optical axis of the corresponding camera.

[0089] Referring to FIG. 11 , in some embodiments, the sealing assembly 16 includes a first sealing member 161 and a second sealing member 162 . The first sealing member 161 and the second sealing member 162 are disposed opposite each other and are sealed to each other. The side of the first sealing member 161 facing away from the second sealing member 162 is sealed to one of the sealing members, and the side of the second sealing member 162 facing away from the first sealing member 161 is sealed to the other light-transmitting portion 12 . This allows the sealing assembly 16 and the two light-transmitting portions 12 to provide a good sealing and waterproof effect for the camera device located within the sealed cavity 163 . The first sealing member 161 and the second sealing member 162 can be generally annular in shape to accommodate the end surface shape of the light-transmitting portion 12 . The materials of the first sealing member 161 and the second sealing member 162 include, but are not limited to, metal, plastic, or any other suitable material. In some embodiments, a sealing ring can be provided between the first sealing member 161 and the second sealing member 162 to enhance the sealing and waterproof performance between the first sealing member 161 and the second sealing member 162 . The materials of the sealing ring include, but are not limited to, rubber.

[0090] As shown in Figures 11, 13, and 14, Figure 13 shows an enlarged schematic diagram of the layout of the first sealing member 161 in some embodiments, and Figure 14 shows an enlarged schematic diagram of a portion of the light-transmitting portion 12 in some embodiments. In some embodiments, a snap-in groove 164 is provided on the side of the first sealing member 161 facing away from the second sealing member 162, and on the side of the second sealing member 162 facing away from the first sealing member 161. The light-transmitting portion 12 includes a lens body and a snap-in structure 129 provided on the end surface of the lens body. The snap-in structures 129 of the two light-transmitting portions 12 are correspondingly engaged with the two snap-in grooves 164 of the sealing assembly 16. This arrangement can improve the sealing performance of the connection between the light-transmitting portion 12 and the sealing assembly 16, thereby enabling the light-transmitting portion 12 and the sealing assembly 16 to provide a better sealing effect for the camera equipment located within the sealed cavity 163, thereby better adapting to underwater shooting scenarios.

[0091] It is understandable that the sealing component 16 is provided between the two light-transmitting portions 12. While effectively sealing the gap between the two light-transmitting portions 12, it is not easy to block the field of view of the light-transmitting portion 12, so that the light-transmitting portion 12 has a sufficient field of view to meet the needs of panoramic shooting. In some embodiments, the sealing component 16 is located within the overlapping field of view of at least two light-transmitting portions 12, so that the sealing component 16 can be hidden by the algorithm, thereby improving the shooting effect of the shooting device. In other embodiments, part of the sealing component 16 is located within the overlapping field of view of at least two light-transmitting portions 12, so that the part can be hidden by the algorithm, and another part of the sealing component 16 is located outside the field of view of the light-transmitting portion 12. The shooting equipment will not capture the sealing component 16, which is also beneficial to improving the shooting effect of the shooting device.

[0092] In some embodiments, the waterproof housing 10 may further include a support element 18 connected to the sealing assembly 16. The support element 18 may be a selfie stick. The provision of the support element 18 facilitates the user to hold the support element 18 and take photos. The support element 18 may pass through the first and second seals 161 and 162 and its ends may be connected to the photographing device, so that the photographing device can be operated through the support element 18. In some embodiments, the support element 18 is located within the overlapping field of view of at least two light-transmitting portions 12, so that the support element 18 can be hidden by an algorithm, so that the panoramic image obtained by the photographing device does not include part of the support element 18, which is conducive to improving the photographic effect. In other embodiments, the support element 18 may also be partially located within the overlapping field of view of at least two light-transmitting portions 12, so that the algorithm can hide this part, and another part of the support element 18 may be located outside the field of view of the light-transmitting portion 12, so that the photographing device will not capture the part of the support element 18 outside the field of view, which is also conducive to improving the photographic effect.

[0093] In some embodiments, a mounting member 17 is connected to the sealing assembly 16 and corresponds to the position of the sealing assembly 16 on the optical axis. The mounting member 17 is provided with a positioning slot 171 for securing the camera. Thus, when the camera is secured to the mounting member 17, both the mounting member 17 and the camera are located at the junction of the two light-transmitting portions 12, which prevents them from obstructing the field of view of the light-transmitting portions 12 and preventing the mounting member 17 from being captured by the camera, thereby enhancing panoramic photography. The specific configuration of the mounting member 17 is not limited. In some embodiments, the mounting member 17 may be a generally U-shaped frame structure that surrounds three sides of the camera to secure the camera. Of course, the mounting member 17 is not limited to this configuration. The mounting member 17 may also cover portions of the camera, excluding the light-transmitting portion 12 and the buttons, to provide adequate protection for the camera. This is sufficient as long as the mounting member 17 secures the camera within the sealed cavity 163 and does not interfere with the light captured by the light-transmitting portion 12. Materials for the mounting member 17 include, but are not limited to, plastic and metal.

[0094] It can be understood that, in this embodiment, since the light-transmitting portion 12 serves as the main body for accommodating the shooting device rather than being merely sealed at the camera of the shooting device, the light-transmitting portion 12 has a sufficiently large size. Therefore, the light-transmitting portion 12 in this embodiment has a sufficiently large light-receiving area, and can well receive light at a large angle, such as receiving framing light with an angle greater than 90 degrees with the optical axis, which is beneficial to reducing the refractive power requirements of the light-transmitting portion 12. Therefore, while meeting the requirements of panoramic shooting, the light-entering surface 122 and the light-emitting surface 123 of the light-transmitting portion 12 of this embodiment can both be set to spherical surfaces, which is beneficial to reducing the design and manufacturing costs of the light-transmitting portion 12 while effectively protecting the shooting device. Furthermore, in some embodiments, the light-entering surface 122 of the light-transmitting portion 12 is a convex surface, and the light-emitting surface 123 is a concave surface, which can not only effectively deflect light at a large angle, but also suppress the generation of aberrations such as distortion, thereby improving the imaging quality of the shooting device.

[0095] As shown in conjunction with Figures 12 and 15 , in some embodiments, when two light-transmitting portions 12 are provided, each light-transmitting portion 12 satisfies the conditional equation: 1 < R1 / R2 ≤ 1.137; wherein R1 is the radius of curvature of the light-entering surface 122, and R2 is the radius of curvature of the light-emitting surface 123. When the above conditional equation is satisfied, the radii of curvature of the light-entering surface 122 and the light-emitting surface 123 of the light-transmitting portion 12 can be properly configured, so that the light-entering surface 122 and the light-emitting surface 123 form a good match. The light-entering surface 122 can effectively deflect large-angle light rays to the light-emitting surface 123, and the light-emitting surface 123 can cooperate with the light-entering surface 122 to properly allocate the light collected by the light-entering surface 122. This improves the field of view of the light-transmitting portion 12 while suppressing the generation of aberrations such as distortion, thereby improving the imaging quality of the camera device.

[0096] In some embodiments, when two light-transmitting portions 12 are provided, each light-transmitting portion 12 satisfies the conditional equation: 1 < D1 / D2 ≤ 1.135; where D1 is the effective light-entry aperture of the light-entry surface 122, and D2 is the effective light-exit aperture of the light-exit surface 123. When this conditional equation is satisfied, the effective apertures of the light-entry surface 122 and the light-exit surface 123 can be properly configured, ensuring that the light-transmitting portion 12 has a sufficient light-collecting range. This helps to increase the field of view of the light-transmitting portion 12, meeting the requirements of panoramic photography. It also reduces the step difference between the effective apertures of the light-entry surface 122 and the light-exit surface 123, thereby suppressing the generation of aberrations such as distortion and improving the imaging quality of the camera device.

[0097] In some embodiments, when two light-transmitting portions 12 are provided, each light-transmitting portion 12 satisfies the conditional equation: 1.458 ≤ Nd ≤ 1.712, where Nd is the refractive index of the light-transmitting portion 12. When this conditional equation is satisfied, the light-transmitting portion 12 has sufficient refractive power to accommodate underwater photography, where the refractive index of water is much higher than that of air. Furthermore, during underwater photography, the light-transmitting portion 12 can effectively refract wide-angle light rays to the viewfinder 112 for reception by the camera of the shooting device, thereby meeting the requirements for underwater panoramic photography.

[0098] Referring to Figure 15, in some embodiments, the various parameters of the light-transmitting portion 12 are shown in Table 7 below, wherein the data in the first row are the parameters of the light-incident surface 122, the data in the second row are the data of the light-emitting surface 123, R is the curvature radius of the corresponding surface at the center, D is the effective aperture of the corresponding surface, Nd is the refractive index of the light-transmitting portion 12, and ABV is the Abbe number of the light-transmitting portion 12.

[0099] Table 7

[0100] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0101] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A waterproof housing, characterized in that: include: A shell structure is provided with a receiving cavity, and the shell structure is also provided with a viewing window communicating with the receiving cavity; as well as, The light-transmitting portion is sealed and arranged on the viewfinder window. The light-transmitting portion has a light incident surface. The light-transmitting portion can refract at least part of the incident light whose angle with its optical axis is greater than 90 degrees from the light incident surface to the viewfinder window.

2. The waterproof housing according to claim 1, characterized in that: The number of the viewfinder windows is at least two, the number of the light-transmitting portions is at least two, the at least two light-transmitting portions are sealed and arranged in the viewfinder window in a one-to-one correspondence, the viewing angles of the at least two light-transmitting portions partially overlap, and the sum of the non-overlapping viewing angles is equal to 360 degrees.

3. The waterproof housing according to claim 2, characterized in that: There are two light-transmitting portions, the two light-transmitting portions face opposite directions, the optical axes of the two light-transmitting portions are parallel or coincident, and the viewing angle of each light-transmitting portion is greater than or equal to 183 degrees.

4. The waterproof housing according to claim 1, characterized in that: The light-transmitting portion can refract at least one incident light into an outgoing light, and an included angle between the outgoing light and the incident light is smaller than a first preset included angle.

5. The waterproof housing according to claim 4, characterized in that: The outgoing light is substantially parallel to the incident light.

6. The waterproof housing according to claim 1, characterized in that: The light-transmitting portion is provided with a raised portion connected to the shell structure, or the shell structure is provided with a raised portion connected to the light-transmitting portion; wherein, the raised portion makes the effective light incident aperture of the light incident surface higher than the outer surface of the shell structure in the radial outward direction along the optical axis of the light-transmitting portion.

7. The waterproof housing according to claim 1, characterized in that: The light-transmitting portion further comprises a light-emitting surface disposed opposite to the light-entering surface, and in a radially outward direction along the optical axis of the light-transmitting portion, an effective light-entering aperture of the light-entering surface is higher than an effective light-emitting aperture of the light-emitting surface.

8. The waterproof housing according to claim 1, characterized in that: The shell structure is located outside the field of view of the light-transmitting portion, or a portion of the shell structure is located within the overlapping field of view of at least two of the light-transmitting portions.

9. The waterproof housing according to claim 1, characterized in that: The shell structure is provided with a connecting portion, and the connecting portion is used to connect the supporting element; When the connecting portion is connected to the supporting element, the supporting element is located within the overlapping field of view of at least two of the light-transmitting portions, or a portion of the supporting element is located within the overlapping field of view of at least two of the light-transmitting portions.

10. The waterproof housing according to claim 1, characterized in that: The light-transmitting portion further comprises a light-emitting surface which is arranged opposite to the light-entering surface, and at least one of the light-entering surface and the light-emitting surface of the light-transmitting portion is an aspherical surface.

11. The waterproof housing according to claim 1, characterized in that: The light-transmitting portion also has a light-emitting surface arranged opposite to the light-entering surface, the light-entering surface is a convex surface, the light-emitting surface is a concave surface, at least one of the light-entering surface and the light-emitting surface is an aspherical surface, and the thickness of the light-transmitting portion at the effective light-entering aperture is greater than the center thickness of the light-transmitting portion.

12. The waterproof housing according to claim 11, characterized in that: The ratio of the thickness of the light-transmitting portion at the effective light-entry aperture to the central thickness of the light-transmitting portion is greater than 1.

5.

13. The waterproof housing according to claim 11, characterized in that: The number of the light-transmitting parts is two, the two light-transmitting parts are oriented in opposite directions, the optical axes of the two light-transmitting parts are parallel or coincident, the field of view angle of each light-transmitting part is greater than or equal to 183 degrees, the light-entering surface and the light-emitting surface are both aspherical surfaces, and the waterproof housing satisfies the following conditional formula: 1.101≤R1 / R2≤1.293; Wherein, R1 is the radius of curvature of the light incident surface at the center, and R2 is the radius of curvature of the light emitting surface at the center.

14. The waterproof housing according to claim 11, characterized in that: The number of the light-transmitting portions is two, the two light-transmitting portions face opposite to each other, the optical axes of the two light-transmitting portions are parallel or coincident, the viewing angle of each light-transmitting portion is greater than or equal to 183 degrees, and the waterproof housing satisfies the following conditional formula: 1.135<D1 / D2≤1.333; Wherein, D1 is the effective light incident aperture of the light incident surface, and D2 is the effective light emitting aperture of the light emitting surface.

15. The waterproof housing according to claim 11, characterized in that: The number of the light-transmitting portions is two, the two light-transmitting portions face opposite to each other, the optical axes of the two light-transmitting portions are parallel or coincident, the viewing angle of each light-transmitting portion is greater than or equal to 183 degrees, and the waterproof housing satisfies the following conditional formula: 1.458≤Nd≤1.712; Wherein, Nd is the refractive index of the light-transmitting portion.

16. The waterproof housing according to claim 4, characterized in that: The light-transmitting portion includes a first lens and a second lens disposed on a side of the first lens facing the viewfinder window. The light-transmitting portion can refract at least a portion of incident light incident from the first lens into outgoing light emitted from the second lens.

17. The waterproof housing according to claim 16, characterized in that: The first lens can refract the incident light into an intermediate light, and an included angle between the intermediate light and the outgoing light is greater than the first preset angle.

18. The waterproof housing according to claim 17, characterized in that: The included angle between the intermediate light and the optical axis of the light-transmitting portion is greater than the included angle between the emergent light and the optical axis of the light-transmitting portion.

19. The waterproof housing according to claim 17, characterized in that: Along the radial outward direction of the optical axis of the light-transmitting portion, the incident point of the incident light ray is higher than the exit point of the middle light ray, and the incident point of the middle light ray is higher than the exit point of the exit light ray.

20. The waterproof housing according to claim 17, characterized in that: The second lens covers the viewfinder window, and the edge of the first lens and the edge of the second lens are arranged to be attached to each other to enclose and form a heat-insulating cavity.

21. The waterproof housing according to claim 20, characterized in that: The first lens has a light incident surface and an inner refractive surface disposed opposite to each other, the second lens has an outer refractive surface and a light emitting surface disposed opposite to each other, and the average curvature of the inner refractive surface of the first lens is greater than the average curvature of the outer refractive surface of the second lens.

22. The waterproof housing according to any one of claims 17, characterized in that: The first lens has a light incident surface and an inner refractive surface arranged opposite to each other, and the second lens has an outer refractive surface and a light emitting surface arranged opposite to each other, and the inner refractive surface and the light emitting surface both face the viewfinder window, and at least one of the light incident surface, the inner refractive surface, the outer refractive surface and the light emitting surface is an aspherical surface, the light incident surface is a convex surface, the inner refractive surface is a concave surface, the outer refractive surface is a convex surface, and the light emitting surface is a concave surface.

23. The waterproof casing according to claim 22, characterized in that: The light incident surface, the inner refractive surface, the outer refractive surface and the light emitting surface are all aspherical surfaces.

24. The waterproof housing according to claim 22 or 23, characterized in that: The number of the light-transmitting portions is two, the two light-transmitting portions face opposite to each other, the optical axes of the two light-transmitting portions are parallel to or coincide with each other, the viewing angle of each light-transmitting portion is greater than or equal to 183 degrees, and the waterproof housing satisfies the following conditional formula: 1.028≤f1 / f2≤2.011; Wherein, f1 is the focal length of the first lens, and f2 is the focal length of the second lens.

25. The waterproof housing according to claim 22 or 23, characterized in that: The number of the light-transmitting portions is two, the two light-transmitting portions face opposite to each other, the optical axes of the two light-transmitting portions are parallel or coincident, the viewing angle of each light-transmitting portion is greater than or equal to 183 degrees, and the waterproof housing satisfies the following conditional formula: 1.681≤DS1 / DS4≤1.973; Among them, DS1 is the effective light incident aperture of the light incident surface, and DS4 is the effective light emitting aperture of the light emitting surface.

26. The waterproof casing according to claim 17, characterized in that: The number of the light-transmitting portions is two, the two light-transmitting portions face opposite to each other, the optical axes of the two light-transmitting portions are parallel or coincident, the viewing angle of each light-transmitting portion is greater than or equal to 183 degrees, and the waterproof housing satisfies the following conditional formula: 1.371≤Nd1≤1.609; and / or, 1.371≤Nd2≤1.609; Wherein, Nd1 is the refractive index of the first lens, and Nd2 is the refractive index of the second lens.

27. The waterproof casing according to claim 1, characterized in that: The light-transmitting portion is substantially flat, and an extension direction of a middle portion of the light-transmitting portion is substantially parallel to a plane perpendicular to the optical axis thereof.

28. The waterproof casing according to claim 27, characterized in that: The light-transmitting portion further comprises a light-emitting surface which is arranged opposite to the light-entering surface, and the curvature radii of the light-entering surface and the light-emitting surface of the light-transmitting portion at the center are both infinite.

29. The waterproof casing according to claim 27, characterized in that: The light-transmitting portion further comprises a light-emitting surface disposed opposite to the light-entering surface, wherein the light-entering surface is convex at the circumference of the light-transmitting portion, and the light-emitting surface is concave at the circumference of the light-transmitting portion.

30. The waterproof casing according to claim 27, characterized in that: The number of the light-transmitting parts is two, the two light-transmitting parts are oriented in opposite directions, the optical axes of the two light-transmitting parts are parallel or coincident, the field of view angle of each light-transmitting part is greater than or equal to 183 degrees, the light-transmitting part further has a light-emitting surface arranged opposite to the light-entering surface, and the waterproof housing satisfies the following conditional formula: 1.159≤D1 / D2≤1.361; Wherein, D1 is the effective light incident aperture of the light incident surface, and D2 is the effective light emitting aperture of the light emitting surface.

31. The waterproof casing according to claim 27, characterized in that: The number of the light-transmitting portions is two, the two light-transmitting portions face opposite to each other, the optical axes of the two light-transmitting portions are parallel or coincident, the viewing angle of each light-transmitting portion is greater than or equal to 183 degrees, and the waterproof housing satisfies the following conditional formula: 1.371≤Nd≤1.609; Wherein, Nd is the refractive index of the light-transmitting portion.

32. A photographing device, characterized in that: It comprises a shooting device and a waterproof cover as described in any one of claims 1 to 31, wherein the shooting device is arranged in a receiving cavity of the waterproof cover.

33. A waterproof housing, characterized in that: include: At least two light-transmitting portions, the viewing angles of at least two of the light-transmitting portions partially overlap, and the sum of the viewing angles of the non-overlapping fields of at least two of the light-transmitting portions is equal to 360 degrees; A sealing component is sealed and connected to at least two of the light-transmitting parts, wherein the sealing component and the at least two light-transmitting parts are jointly arranged to form a sealed cavity; as well as, The mounting piece is accommodated in the sealed cavity and corresponds to the junction of the two light-transmitting parts, and the mounting piece is used for mounting the shooting equipment.

34. The waterproof casing according to claim 33, characterized in that: The waterproof housing is provided with two light-transmitting parts, the end surfaces of the two light-transmitting parts are arranged opposite to each other, and the sealing component is arranged between the two light-transmitting parts and is respectively sealed and connected to the two light-transmitting parts.

35. The waterproof casing according to claim 34, characterized in that: The sealing component is provided with snap-fit ​​grooves on two opposite sides, the light-transmitting part comprises a lens body and a snap-fit ​​structure provided on the end surface of the lens body, and the snap-fit ​​structures of the two light-transmitting parts are embedded in the two snap-fit ​​grooves of the sealing component one by one.

36. The waterproof casing according to claim 34, characterized in that: The sealing assembly includes a first seal, a second seal and a sealing ring. The first seal and the second seal are opposite to each other and connected to each other. The side of the first seal facing away from the second seal and the side of the second seal facing away from the first seal are respectively sealed and connected to the two light-transmitting parts. The sealing ring is arranged between the first seal and the second seal and abuts against the first seal and the second seal.

37. The waterproof cover according to claim 33, characterized in that: The sealing component is located within the overlapping field of view of at least two of the light-transmitting portions, or a portion of the sealing component is located outside the field of view of the light-transmitting portion.

38. The waterproof cover according to claim 33, characterized in that: The waterproof cover also includes a supporting element connected to the sealing assembly, wherein the supporting element is located within the overlapping field of view of at least two of the light-transmitting portions, or a portion of the supporting element is located outside the field of view of the light-transmitting portion.

39. The waterproof cover according to claim 33, characterized in that: The mounting piece is connected to the sealing assembly and corresponds to the position of the sealing assembly on the optical axis of the light-transmitting portion. The mounting piece is provided with a positioning groove for fixing the shooting device.

40. The waterproof cover according to claim 33, characterized in that: The light incident surface and the light emitting surface of the light-transmitting portion are both spherical surfaces.

41. The waterproof cover according to claim 34, characterized in that: The waterproof housing satisfies the following condition: 1<R1 / R2≤1.137; Wherein, R1 is the curvature radius of the light incident surface of the light-transmitting portion, and R2 is the curvature radius of the light emitting surface of the light-transmitting portion.

42. The waterproof cover according to claim 34, characterized in that: The waterproof housing satisfies the following condition: 1<D1 / D2≤1.135; Wherein, D1 is the effective light incident aperture of the light incident surface of the light-transmitting portion, and D2 is the effective light emitting aperture of the light emitting surface of the light-transmitting portion.

43. The waterproof cover according to claim 34, characterized in that: The waterproof housing satisfies the following conditional formula: 1.458≤Nd≤1.712; Wherein, Nd is the refractive index of the light-transmitting portion.

44. A photographing device, characterized in that: It comprises a photographing device and a waterproof cover as described in any one of claims 33-43, and the photographing device is arranged on the mounting part.

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