electronic devices

Abstract

This application discloses an electronic device, relating to the field of electronic device technology. The electronic device includes a housing, at least one camera assembly, and a light-transmitting cover plate; the housing includes at least one display window; the camera assembly is fixed inside the housing, and the lens of the camera assembly is correspondingly disposed with respect to the display window; the light-transmitting cover plate is connected to the display window, and the light-transmitting cover plate forms a sealed space on the side of the camera assembly opposite to the display window, so that the lens of the camera assembly is placed within the sealed space.

Description

Technical Field

[0001] This application relates to the field of electronic equipment technology, and more particularly to an electronic device. Background Technology

[0002] For electronic devices with cameras, when the device moves from a high-temperature environment to a low-temperature environment, the gas inside the camera cover remains at a higher temperature, while the lower temperature outside the cover is transferred inward through the cover. The difference in temperature can easily cause condensation on the inner wall of the cover, forming water mist that takes a long time to dissipate naturally. This affects the user's ability to use the lens during this period and greatly reduces the user experience. Utility Model Content

[0003] The first aspect of this application provides an electronic device, which includes...

[0004] A housing, the housing including at least one exposure window;

[0005] At least one camera assembly is fixed inside the housing, and the lens of the camera assembly is correspondingly arranged with respect to the display window;

[0006] A light-transmitting cover plate is connected to the exposure window. The light-transmitting cover plate forms a sealed space on the side of the camera assembly away from the exposure window, so that the lens of the camera assembly is placed in the sealed space.

[0007] In some modified embodiments of the first aspect of this application, the aforementioned electronic device is wherein the sealed space has a target humidity, or the sealed space is in a vacuum state.

[0008] In some modified embodiments of the first aspect of this application, the aforementioned electronic device wherein the light-transmitting cover is provided with a hydrophobic membrane at least on the side facing the enclosed space.

[0009] In some modified embodiments of the first aspect of this application, the aforementioned electronic device, wherein the camera assembly includes a base;

[0010] The lens extends toward the display window from the side of the base facing the display window;

[0011] The base has an adhesive part on the side facing the exposure window, and the adhesive part is arranged around the axis of the lens to make the base and the inner wall of the housing seal and fit together.

[0012] In some modified embodiments of the first aspect of this application, the aforementioned electronic device further includes a first bracket;

[0013] The first bracket is fitted inside the housing and outside the lens. The first end of the first bracket extends into the exposure window to form a support surface, and the support surface is sealed and fitted to the light-transmitting cover plate.

[0014] The second end of the first bracket extends toward the base to abut against and adhere to the adhesive portion.

[0015] In some modified embodiments of the first aspect of this application, the aforementioned electronic device further includes a limiting part;

[0016] The limiting part is fixedly disposed on the side of the base facing the exposed window, and the limiting part can affect the movement of the base toward the light-transmitting cover plate.

[0017] In some modified embodiments of the first aspect of this application, the aforementioned electronic device further includes a second bracket;

[0018] The second bracket is disposed around the base between the base and the light-transmitting cover, and at least one of the limiting portions is disposed on the second bracket.

[0019] In some modified embodiments of the first aspect of this application, the aforementioned electronic device includes a first limiting member and a second limiting member;

[0020] The first limiting member is arranged parallel to the axial direction of the base, and the first limiting member has an avoidance area on the side facing the base for adapting to the outer wall of the base.

[0021] The second limiting member is disposed at the end of the first limiting member facing the exposure window, and the second limiting member is parallel to the light-transmitting cover and extends radially toward the center of the lens.

[0022] In some modified embodiments of the first aspect of this application, the aforementioned electronic device, wherein the second bracket is provided with four limiting portions, the four limiting portions being evenly distributed around the axial direction of the camera assembly.

[0023] In some modified embodiments of the first aspect of this application, the aforementioned electronic device further includes a display screen;

[0024] The display screen is disposed on the first side of the housing;

[0025] The first side of the housing is opposite to the side where the exposure window is located; or

[0026] The first side of the housing is located on the same side as the exposed window. Attached Figure Description

[0027] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application are illustrated by way of example and not limitation, with the same or corresponding reference numerals denoteing the same or corresponding parts, wherein:

[0028] Figure 1 A schematic diagram of the structure of an electronic device provided in this embodiment is shown.

[0029] Figure 2 schematically shown Figure 1 A cross-sectional schematic diagram of a portion of the structure of the electronic device along AA;

[0030] Figure 3 A schematic diagram of the structure of the first bracket in the electronic device provided in this embodiment is shown.

[0031] Figure 4 schematically shown Figure 3 A schematic diagram of the cross-section of the middle section of the structure along BB;

[0032] Figure 5 The diagram illustrates the interaction between the second bracket and the base in the electronic device provided in this embodiment.

[0033] Figure 6 schematically shown Figure 4 A partial top view of an electronic device in China;

[0034] Figure 7 A schematic diagram of the limiting part in the electronic device provided in this embodiment is shown.

[0035] The following are the reference numerals: 1. Housing; 2. Camera assembly; 21. Lens; 22. Base; 3. Light-transmitting cover; 4. Adhesive part; 5. First bracket; 51. Supporting surface; 6. Limiting part; 61. First limiting member; 62. Second limiting member; 63. Avoidance area; 7. Second bracket. Detailed Implementation

[0036] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0037] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application pertains.

[0038] The technical solution of this application embodiment is to solve the above-mentioned technical problems, and the general idea is as follows:

[0039] Example 1

[0040] Reference Appendix Figure 1 and attached Figure 2 The electronic device provided in this application embodiment includes a housing 1, at least one camera assembly 2, and a light-transmitting cover plate 3; the housing 1 includes at least one display window; the camera assembly 2 is fixed inside the housing 1, and the lens 21 of the camera assembly 2 is correspondingly disposed with the display window; the light-transmitting cover plate 3 is connected to the display window, and the light-transmitting cover plate 3 forms a sealed space on the side of the camera assembly 2 away from the display window, so that the lens 21 of the camera assembly 2 is placed in the sealed space.

[0041] Understandably, in order to solve the problem that the lens of the existing electronic device is prone to water fogging when it changes from a high temperature environment to a low temperature environment, which affects its use, the electronic device provided in this embodiment houses the lens of the camera component 2 in a sealed space, and sets the target humidity of the sealed space to prevent the generation of water vapor. This ensures that the sealed space remains dry when the electronic device switches between high and low temperature environments, preventing the generation of water fog and preventing external water vapor from entering the sealed space and forming water fog, thus greatly improving the user experience.

[0042] The electronic device provided in this embodiment may be, but is not limited to, a mobile phone, a tablet computer, a laptop computer, a handheld camera, etc. The following description of this embodiment will take a mobile phone as an example for detailed explanation, and the same applies to other devices; accordingly, when the electronic device is a mobile phone, it can be a candybar phone or a foldable phone, and the camera component 2 can be set on the back of the phone or on the front, i.e., the display surface. It is easy to understand that the electronic device provided in this embodiment may include a display screen (not shown in the figure), which can be a candybar screen or a flexible screen.

[0043] Here, housing 1 can be the outer shell of the electronic device or the mid-frame structure of the electronic device. For example, corresponding to the two placement positions of the camera component 2 mentioned above, when the display screen is placed on the first side of housing 1 and the first side of housing 1 is opposite to the display window, the camera component 2 can be located on the back of the electronic device, that is... Figure 1In the indicated state, housing 1 can serve as the outer shell of the electronic device. When the display screen and the exposed window are located on the same side, the camera assembly 2 can be located on the front of the electronic device. In this case, housing 1 can serve as the mid-frame structure of the electronic device, meaning that part of the mid-frame forms the exposed window under the screen to accommodate the camera assembly 2. It is easy to understand that housing 1 is a rigid structure, which can be a shell structure with accommodating space or a plate-like structure. Its shape can be designed and adjusted according to the overall shape of the electronic device. For example, when the electronic device is a mobile phone, housing 1 can be, but is not limited to, a rectangular groove or a cuboid structure, and it can be, but is not limited to, made of metal or hard plastic. The number, shape, and size of the exposed windows on housing 1 can be designed and adjusted according to actual needs, such as rectangular or circular, for example, one, two, three, or even more. Figure 1 The four shown are all capable of displaying the lens in conjunction with the camera assembly 2 to achieve image acquisition. For mobile phones, the display window can be, but is not limited to, located on the upper or middle part of the back of the casing 1.

[0044] The camera assembly 2 is a module structure used to capture images and videos. It can be installed directly in the electronic device for use. The camera assembly 2 is fixedly set inside the housing 1 and can be installed on the motherboard by means of bonding, screwing, etc. The above settings are easily understood by those skilled in the art and will not be described in detail here. It is easy to understand that the camera assembly 2 includes at least a base 22 and a lens 21. The base 22 is used to set the internal components and wiring and to cooperate with the motherboard for installation. The lens 21 can be kept inside the housing 1 or extended out of the housing 1 corresponding to the display window. The lens 21 can also extend and retract relative to the housing 1 through the display window to enter and exit the housing 1. Of course, it is understood that when the lens 21 extends or retracts in cooperation with the display window, it is sealed to the circumferential inner wall of the display window to ensure the airtightness of the sealed space.

[0045] The light-transmitting cover 3 is a rigid structure that allows light to pass through without affecting the image acquisition of the lens 21. It can be colorless or colored transparent. The light-transmitting cover 3 can be, but is not limited to, light-transmitting glass. In this embodiment, the light-transmitting cover 3 is sealed to the housing 1. This can be achieved by, but is not limited to, sealing the cover with foam and the edge of the housing 1 or the exposed window. Thus, the area between the light-transmitting cover 3 and the inside and outside of the electronic device is mutually isolated and sealed. In this embodiment, a sealed space is formed from the light-transmitting cover 3 to the side of the camera assembly 2 away from the exposed window. This sealed space can be formed between the light-transmitting cover 3 and the base 22, or between the light-transmitting cover 3 and the motherboard below the base 22. This sealed space is set to have a target humidity, such as a completely dry state or a vacuum state. Therefore, when the electronic device moves from a high-temperature environment to a low-temperature environment, because there is very little or no moisture in the sealed space, water droplets will not condense on the inner wall of the light-transmitting cover 3, thus not affecting the image acquisition of the lens 21. In this embodiment, a sealed space can be formed by extending the housing of the corresponding camera component 2 downwards to enclose and seal the camera component 2, or by extending the housing of the corresponding camera component 2 downwards to abut against the base 22 to enclose and seal the lens 21. The target humidity within the sealed space can be set by adjusting the installation process. For example, during installation, the camera component 2 and housing 1 can be sealed first, then the space where the lens 2 is located can be heated and dried, and finally the light-transmitting cover 3 can be sealed, thus maintaining the sealed space at the target humidity. The target humidity within the sealed space can also be set by installing an adjustment component, which can be, but is not limited to, a heating resistance wire. During the use of the electronic device, the humidity within the sealed space can be adjusted in real time. This can be done manually or automatically with the help of a sensor. For example, a temperature sensor can be installed inside the electronic device and outside the sealed space; if a rapid drop in temperature is detected, the adjustment component can be activated.

[0046] As listed above, the electronic device provided in this application, by forming a sealed space under the light-transmitting cover 3 to house the lens 21 of the camera assembly 2, reduces the flow of water vapor between the sealed space and the outside world, and at the same time reduces the humidity in the sealed space, so that even if there is a temperature difference, water mist will not be generated, effectively improving the user experience of the lens 21 and even the entire device; thereby solving the problem in the prior art that the lens is prone to water mist when entering a low temperature environment from a high temperature environment, which affects the use.

[0047] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships, such as A and / or B. Specifically, it can be understood as: A and B can be included at the same time, A can exist alone, or B can exist alone, and any of the above three situations can be met.

[0048] Furthermore, in the specific implementation of the electronic device provided in this embodiment, the sealed space is in a vacuum state.

[0049] It is understandable that if the sealed space is set to a vacuum state, there will be no water vapor in the sealed space. No matter how the temperature changes or how large the temperature difference is, water mist will not be generated on the inner wall of the light-transmitting cover 3, and thus will not affect the imaging of the lens 2.

[0050] Furthermore, in the specific implementation of the electronic device provided in this embodiment, the light-transmitting cover 3 is provided with a hydrophobic film (not shown in the figure) on at least one side facing the sealed space.

[0051] Understandably, to avoid water mist forming on the inner wall of the light-transmitting cover plate 3, a hydrophobic film can be provided on the light-transmitting cover plate 3 in this embodiment. This film can be provided on the inner wall of the light-transmitting cover plate 3, or simultaneously on both the inner and outer walls. The hydrophobic film has special surface properties, namely, a large number of low surface energy substances or micro-nano structures on its surface, preventing water droplets from spreading on the film surface and instead forming a contact angle greater than 90 degrees, thus achieving water repulsion. Therefore, it is easy to understand that even if the sealing of the enclosed space fails or the humidity within the enclosed space is insufficient, and water mist is generated on the inner wall of the light-transmitting cover plate 3 due to temperature changes, the presence of the hydrophobic film prevents the water mist or droplets from remaining on the inner wall of the light-transmitting cover plate 3, thus not affecting the imaging of the lens 2.

[0052] Further, see attached document. Figure 2 and attached Figure 3 In the specific implementation of the electronic device provided in this embodiment, the lens 21 extends toward the display window from the side of the base 22 facing the display window; the side of the base 22 facing the display window is provided with an adhesive part 4, which is arranged around the axial direction of the lens 21 so that the base 22 is sealed and fitted to the inner wall of the housing 1.

[0053] It is understood that, in order to form a sealed space, in this embodiment, a perimeter adhesive portion 4 can be provided on the side of the base 22 facing the display window. The adhesive portion 4 is used to seal the connection with the inner wall of the housing 1 around the display window. Alternatively, the housing 1 can be positioned to correspond to the display window and extend inwards around it to form a cylindrical wall, which can at least enclose the lens 21. The base 22 can then be sealed to the bottom of the cylindrical wall via the adhesive portion 4 to form a sealed space around the lens 21. The adhesive portion 4 can be, but is not limited to, double-sided adhesive, hot melt adhesive, nano-adhesive, etc. In this embodiment, the adhesive portion 4 can also be configured with a buffer structure in the middle to enhance the cushioning of the electronic device and meet drop protection requirements. The buffer structure can be, but is not limited to, foam, adhesive strips, etc. Furthermore, it is understood that in this embodiment, the adhesive portion 4 is a ring structure, and its specific shape can be adapted and adjusted according to the shape of the base 22 and the cylindrical wall, such as a circle, rectangle, etc.

[0054] Further, see attached document. Figure 2 and attached Figure 3 In a specific implementation, the electronic device provided in this embodiment may further include a first bracket 5; the first bracket 5 is sleeved inside the housing 1 outside the lens 21, the first end of the first bracket 5 extends into the exposure window to form a supporting surface 51, the supporting surface 51 is sealed and attached to the light-transmitting cover plate 3; the second end of the first bracket 5 extends towards the base 22 to abut against and adhere to the adhesive portion 4.

[0055] It is understandable that, in order to form a sealed space, a first support 5 can be provided inside the shell 1 in this embodiment. The first support 5 is a rigid structure, which can be integrally formed with the shell 1 or additionally connected, and can be, but is not limited to, adhesive, screw, snap-fit, etc. The first bracket 5 may include at least a cylindrical structure. The cylindrical portion of the first bracket 5 is used to support and seal the light-transmitting cover plate 3 in conjunction with the exposure window and surround the lens 22 therein. In this embodiment, the light-transmitting cover plate 3 can be directly sealed to the circumferential inner wall of the exposure window through the circumferential outer wall. However, in this configuration, the connection area of ​​the light-transmitting cover plate 3 is small and the stability is not high. Therefore, in this embodiment, the first bracket 5 can form an annular support surface 51 at the exposure window, and the inner wall and circumferential side wall of the light-transmitting cover plate 3 can be connected, increasing the connection area and improving stability. In this embodiment, a support step can also be provided on the support surface 51 to support the light-transmitting cover plate 3, so that the inner wall and circumferential side wall of the light-transmitting cover plate 3 can be sealed to the support step of the support ring 12, which can also avoid the installation difference between the light-transmitting cover plate 3 and the outer wall of the housing 1 and improve the appearance consistency. In this embodiment, the first bracket 5 may also be Figure 3The cylindrical structure shown is fitted with a plate structure on the lower side. The plate structure is parallel to and connected to the housing 1. This not only improves the overall integrity of the product but also enhances the force transmission effect, transferring the force along the axial direction of the cylindrical structure to other parts of the electronic device, effectively protecting the camera assembly 2.

[0056] Further, see attached document. Figure 4 Appendix Figure 5 and attached Figure 6 In a specific implementation, the electronic device provided in this embodiment may also include a limiting part 6; the limiting part 6 is fixedly disposed on the side of the base 22 facing the display window, and the limiting part 22 can affect the movement of the base 22 toward the light-transmitting cover plate 3.

[0057] Understandably, since the base 22 is sealed to the first bracket 5 via the adhesive part 22, the camera assembly 2 can be lifted simultaneously when the housing 2 is lifted during camera assembly maintenance or equipment disassembly. However, there is a wiring connection between the camera assembly 2 and the motherboard. If the camera assembly 2 is lifted along with the housing 1, it will inevitably cause damage to the wiring or even the camera assembly 2. Therefore, this embodiment provides a limiting part 6, which is a rigid structure and can be a limiting rod, limiting block, etc. It is located on the side of the base 22 facing the display window and can prevent the base 22 from moving towards the display window, thereby preventing the camera assembly 2 from being lifted along with the housing 1. It can be understood that in this embodiment, the limiting part 6 can be connected to the motherboard or to the side of the housing opposite the display window to ensure its limiting effect on the camera assembly 2.

[0058] Further, see attached document. Figure 4 Appendix Figure 5 and attached Figure 6 In a specific implementation, the electronic device provided in this embodiment may also include a second bracket 7; the second bracket 7 is disposed around the base 22 between the base 22 and the light-transmitting cover plate 3, and at least one of the limiting parts 6 is disposed on the second bracket 7.

[0059] Understandably, in order to realize the setting of the limiting part 6 and reduce the process difficulty and structural installation steps, a second bracket 7 is set in this embodiment. The second bracket 7 is a rigid structure, which can be a groove structure or a plate structure. The second bracket 7 is set on the side of the base 22 facing the display window. The side of the second bracket 7 away from the display window can cooperate to protect the motherboard, connectors, and related devices connected to the motherboard, that is, to isolate the motherboard and the housing 1 where the display window is located. In this embodiment, an opening can be set on the second bracket 7 corresponding to the camera assembly 2 so that the camera assembly 2 can extend through the opening to the display window. Correspondingly, in this embodiment, a limiting part 6 can be set at the opening of the second bracket 7. The limiting part 6 has a portion overlapping the base 22 in the axial direction of the camera assembly 2, thereby blocking and limiting the base 22 on the side of the base 22 facing the display window. In this embodiment, the limiting part 6 can be integrated with the second bracket 7 or additionally connected to the second bracket 7. Accordingly, the number and position of the limiting parts 6 can be designed and adjusted according to actual needs. For example, one can be set on one side of the opening, and two can be set on the opposite side of the opening. Figure 6 The four corners of the corresponding base 22 are respectively provided with one, etc.; and it is not difficult to understand that in this embodiment, the limiting part 6 needs to avoid the adhesive part 4 in the limiting position of the base 22. Therefore, in this embodiment, when corresponding to the rectangular base 22, the adhesive part 4 can be set as a rectangular ring with an outer diameter smaller than the maximum outer diameter of the base 22, so that the limiting part 6 can be used as follows. Figure 6 As shown, the base 22 is evenly distributed around the axis of the camera assembly 2 at its four corners to avoid the adhesive part 4 and achieve positioning.

[0060] Further, see attached document. Figure 7 In the specific implementation of the electronic device provided in this embodiment, the limiting part 6 includes a first limiting member 61 and a second limiting member 62; the first limiting member 61 is arranged parallel to the axial direction of the base 22, and the first limiting member 61 has an avoidance area 63 on the side facing the base 22 for adapting to the outer wall of the base 22; the second limiting member 62 is disposed at the end of the first limiting member 61 facing the exposure window, and the second limiting member 62 is parallel to the light-transmitting cover plate 3 and extends radially toward the center of the lens 21.

[0061] Understandably, in order to limit the camera assembly 2 with the limiting part 6, prevent damage to the wiring of the camera assembly 2 or even the camera assembly 2 itself during disassembly of the housing, and at the same time ensure the limiting of the base 22 without affecting the installation of the base 22, in this embodiment, the limiting part 6 can be configured to include a first limiting member 61 and a second limiting member 62. The first limiting member 61 and the second limiting member 62 form an L-shaped structure. Both the first limiting member 61 and the second limiting member 62 are rigid structures, which can be integral with the second bracket 7, extending from the opening of the second bracket 7 towards the exposed window; the second limiting member 62... The positioning member 62 is used to restrict the movement of the base 22 toward the display window. The first limiting member 61 is used to compensate for the height and to fit the shape of the base 22 for installation and accommodation. The avoidance area 63 can be formed by thinning or hollowing out the side of the first limiting member 61 facing the base 22. The specific shape can be designed and adjusted according to the actual shape of the base 22. For example, in this embodiment, the first limiting member 61 corresponds to the four corners of the rectangular base 22, and the avoidance area 63 is arc-shaped or fan-shaped to correspond to the chamfer design of the rectangular corner. This setting can be easily understood by those skilled in the art and will not be elaborated here.

[0062] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An electronic device, characterized in that, It includes: A housing, the housing including at least one exposure window; At least one camera assembly is fixed inside the housing, and the lens of the camera assembly is correspondingly arranged with respect to the display window; A light-transmitting cover plate is connected to the exposure window. The light-transmitting cover plate forms a sealed space on the side of the camera assembly away from the exposure window, so that the lens of the camera assembly is placed in the sealed space.

2. The electronic device according to claim 1, characterized in that: The enclosed space has a target humidity level; or The sealed space is in a vacuum state.

3. The electronic device according to claim 1, characterized in that: The light-transmitting cover plate has a hydrophobic membrane on at least one side facing the enclosed space.

4. The electronic device according to claim 1, characterized in that: The camera assembly includes a base; The lens extends toward the display window from the side of the base facing the display window; The base has an adhesive part on the side facing the exposure window, and the adhesive part is arranged around the axis of the lens to make the base and the inner wall of the housing seal and fit together.

5. The electronic device according to claim 4, characterized in that: It also includes the first support; The first bracket is fitted inside the housing and outside the lens. The first end of the first bracket extends into the exposure window to form a support surface, and the support surface is sealed and fitted to the light-transmitting cover plate. The second end of the first bracket extends toward the base to abut against and adhere to the adhesive portion.

6. The electronic device according to claim 4, characterized in that: It also includes a limiting part; The limiting part is fixedly disposed on the side of the base facing the exposed window, and the limiting part can affect the movement of the base toward the light-transmitting cover plate.

7. The electronic device according to claim 6, characterized in that: It also includes a second support; The second bracket is disposed around the base between the base and the light-transmitting cover, and at least one of the limiting portions is disposed on the second bracket.

8. The electronic device according to claim 7, characterized in that: The limiting part includes a first limiting member and a second limiting member; The first limiting member is arranged parallel to the axial direction of the base, and the first limiting member has an avoidance area on the side facing the base for adapting to the outer wall of the base. The second limiting member is disposed at the end of the first limiting member facing the exposure window, and the second limiting member is parallel to the light-transmitting cover and extends radially toward the center of the lens.

9. The electronic device according to claim 7, characterized in that: The second bracket is provided with four limiting parts, which are evenly distributed around the axis of the camera assembly.

10. The electronic device according to claim 1, characterized in that: It also includes the display screen; The display screen is disposed on the first side of the housing; The first side of the housing is opposite to the side where the exposure window is located; or The first side of the housing is located on the same side as the exposed window.

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