Camera assembly and intelligent device

Abstract

The invention relates to a camera assembly which comprises a base, a first lens group and a second lens group located below the first lens group. Wherein the base is provided with a light hole, and an image sensor is arranged below the light hole; the first lens group can move in a direction perpendicular to the base and is focused with the second lens group; and the second lens group is fixedly connected to the base and covers the light hole. In the process, the second lens group and the base are fixed and do not move, so that the image sensor is located in a dustproof closed space, and the sensor is prevented from being abnormal.

Description

Technical Field

[0001] The present disclosure relates to the field of camera technology, and in particular to camera components and smart devices. Background Art

[0002] At present, although the cameras equipped in smart devices usually adopt a sealed design to reduce the entry of dust, since the interior of the camera is not completely closed, once dust enters the interior of the camera, it will have a great impact on the image quality.

[0003] For example, dust may adhere to the lens, blocking the transmission of light, causing the image to appear blurry, dim, etc. Dust may also affect the focus function of the camera, causing the focus to become slow and inaccurate. Dust may also adhere to the image sensor, causing the sensor to malfunction or even malfunction.

[0004] Therefore, the dust-proof design of the camera is an important part of ensuring the reliability of the camera. Summary of the invention

[0005] The present invention provides a camera assembly and a smart device to solve the deficiencies in the related art.

[0006] According to a first aspect of an embodiment of the present disclosure, a camera assembly is provided, comprising:

[0007] A base, a first mirror group, and a second mirror group located below the first mirror group;

[0008] Among them, a light-transmitting hole is provided on the base, and an image sensor is provided under the light-transmitting hole; the first mirror group can move in a direction perpendicular to the base and focus with the second mirror group; the second mirror group is fixedly connected to the base to cover the light-transmitting hole.

[0009] Optionally, the minimum inner diameter of the lower bottom surface of the second mirror group in contact with the base is greater than the diameter of the light-transmitting hole; and the second mirror group covers the light-transmitting hole.

[0010] Optionally, the maximum outer diameter of the second mirror group is smaller than the diameter of the light-transmitting hole; the second mirror group is located in the light-transmitting hole, and the second mirror group is fixedly connected to the light-transmitting hole via a sealing middle piece.

[0011] Optionally, the sealing intermediate piece includes a sealing ring.

[0012] Optionally, a center line of the first mirror group and a center line of the second mirror group are located on the same axis.

[0013] Optionally, the camera assembly further includes:

[0014] A first shell, wherein the first shell is fixedly connected to the base; the first mirror group and the second mirror group are accommodated in an internal space formed after the shell and the base are fixedly connected.

[0015] Optionally, the camera assembly further includes:

[0016] Carriers, coils and magnets;

[0017] Among them, the carrier, coil and magnet are accommodated in an internal space formed after the shell and the base are fixedly connected; the coil is arranged on the carrier in a surrounding manner, and the magnet is arranged around the carrier; the first mirror group is fixedly connected to the carrier; when the coil is energized, it generates electromagnetic induction with the magnet to form a driving force to drive the carrier to move in the vertical direction.

[0018] Optionally, the camera assembly further includes:

[0019] A first elastic member is accommodated in an internal space formed after the housing and the base are fixedly connected and is located above the carrier;

[0020] A second elastic member is accommodated in an internal space formed after the shell and the base are fixedly connected, is located below the carrier, and is located above the second mirror group.

[0021] Optionally, the first elastic member is fixed inside the shell, and the lower surface of the first elastic member contacts the upper surface of the carrier; the second elastic member is fixed on the base, and the upper surface of the second elastic member contacts the lower surface of the carrier.

[0022] Optionally, the elastic coefficients of the first elastic member and the second elastic member are the same; and the ratio of the driving force to the elastic coefficient is the displacement of the carrier in the vertical direction.

[0023] Optionally, the elastic member includes a reed.

[0024] Optionally, the camera component is a focus motor.

[0025] Optionally, a second shell is further provided below the base, and the base is fixedly connected to the second shell; the second shell is located above the image sensor, and an opening is provided on the second shell, and the opening is located below the light-transmitting hole.

[0026] Optionally, a filter is provided in the opening.

[0027] According to a second aspect of an embodiment of the present disclosure, a smart device is provided, wherein the smart device includes the above-mentioned camera assembly.

[0028] The technical solution provided by the embodiments of the present disclosure may at least include the following beneficial effects:

[0029] According to the embodiments of the present disclosure, two mirror groups are provided in the camera assembly, and the second mirror group is fixedly connected to the base to form a cover of the light-transmitting hole by the second mirror group, thereby forming a sealed space between the second mirror group, the base and the image sensor, and preventing dust from falling into the space where the image sensor is located through the light-transmitting hole of the base. In addition, the second mirror group can cooperate with the first mirror group to achieve the focus of the camera through the movement of the first mirror group. In the above process, since the second mirror group and the base are fixed and will not move, the image sensor is in a dust-proof and enclosed space, avoiding abnormalities in the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0031] Figure 1 is a schematic diagram of a dustproof ring according to an embodiment of the present disclosure;

[0032] Figure 2 is a schematic diagram showing the structure of a camera assembly according to an embodiment of the present disclosure;

[0033] Figure 3 is a schematic diagram showing a fixed connection according to an embodiment of the present disclosure;

[0034] Figure 4 is a schematic diagram showing the structure of another camera assembly according to an embodiment of the present disclosure;

[0035] Figure 5 is a schematic diagram showing the structure of another camera assembly according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0037] In the related art, a dustproof ring or a dustproof wall is usually used to reduce the entry of dust.

[0038] See also Figure 1 , Figure 1 FIG. 1 is a schematic diagram of a dustproof ring according to an embodiment of the present disclosure. Figure 1 As shown, the staggered space formed by the dustproof ring makes it necessary for dust to pass through the light transmission hole and fall into the space where the image sensor is located. Figure 1 The path shown by the arrow increases the difficulty for dust to enter and can reduce the entry of dust to a certain extent.

[0039] However, due to the addition of the dust ring, the camera needs to reserve extra space for the dust ring, which will increase the overall space occupied by the camera. In addition, the design of the dust ring cannot completely isolate dust.

[0040] In view of this, the present disclosure provides a technical solution by arranging two lens groups in a camera assembly and fixing the second lens group to a base so as to cover the light-transmitting hole with the second lens group, thereby forming a sealed space between the second lens group, the base and the image sensor.

[0041] See also Figure 2 , Figure 2 FIG. 1 is a schematic diagram showing the structure of a camera assembly according to an embodiment of the present disclosure. Figure 2 As shown, the camera assembly at least includes a base 101 , a first lens group 102 , and a second lens group 103 located below the first lens group 102 .

[0042] In this embodiment, a light-transmitting hole is provided on the base 101, and an image sensor 104 is provided below the light-transmitting hole; the second mirror group 103 is fixedly connected to the base 101 to cover the light-transmitting hole, thereby forming a sealed space between the second mirror group 103, the base 101 and the image sensor 104 to prevent dust from falling into the space where the image sensor 104 is located.

[0043] In addition, for the sake of distinction, the first mirror group 102 may be referred to as a movable mirror group, and the second mirror group 103 may be referred to as a fixed mirror group.

[0044] In this embodiment, the first lens group 102 can move in a direction perpendicular to the base 101 to focus with the second lens group 103, thereby realizing the focusing function of the camera assembly by changing the focusing focal length.

[0045] In one embodiment shown, the minimum inner diameter of the lower bottom surface of the second mirror group in contact with the base is larger than the diameter of the light-transmitting hole; and the second mirror group covers the light-transmitting hole.

[0046] by Figure 2For example, when the second mirror group 103 and the base 101 are fixedly connected, the lower bottom surface of the second mirror group 103 can contact the upper surface of the base 101. In addition, the minimum inner diameter D2 of the lower bottom surface of the second mirror group 102 in contact with the base 101 can be greater than the diameter D1 of the light-transmitting hole, so that dust is prevented from falling into the space where the image sensor 104 is located through the light-transmitting hole by covering the second mirror group 103 above the base 101.

[0047] The second mirror group 102 may be fixed to the base 103 by bonding, or by other methods, which are not limited in the present disclosure.

[0048] In one embodiment shown, the maximum outer diameter of the second mirror group is smaller than the diameter of the light-transmitting hole; the second mirror group is located in the light-transmitting hole, and the second mirror group is fixedly connected to the light-transmitting hole via a sealing middle piece.

[0049] by Figure 3 For example, Figure 3 FIG. 1 is a schematic diagram showing a fixed connection according to an embodiment of the present disclosure. Figure 3 As shown, compared to Figure 2 , Figure 3 The maximum outer diameter D4 of the second mirror group 103 is smaller than the diameter D3 of the light-transmitting hole of the base 101, so a sealing middle piece 105 can be disposed between the two for fixed connection.

[0050] Through the above two fixing methods, the adaptability of the second mirror group and the base with different sizes can be guaranteed.

[0051] In one embodiment shown, the sealing intermediate piece includes a sealing ring.

[0052] For example, the sealing intermediate member 105 may be an annular sealing ring, which may prevent dust from falling into the space where the image sensor 104 is located from the gap between the second lens group 103 and the base 101 .

[0053] The sealing ring may be made of rubber, thereby playing the role of buffering and protecting the mirror group.

[0054] In one embodiment shown, a center line of the first mirror group and a center line of the second mirror group are located on the same axis.

[0055] by Figure 2 For example, the first mirror group 102 may be located above the second mirror group 103 , and in order to achieve a focusing function of the camera, a center line of the first mirror group 102 may be located on the same axis as a center line of the second mirror group 103 .

[0056] It is worth noting that the first lens group 102 may be further divided into a plurality of sub-lens groups, and a richer focusing function may be achieved by adjusting the distance between different sub-lens groups and the second lens group 103 .

[0057] In one embodiment shown, the camera assembly further includes:

[0058] A first shell, wherein the first shell is fixedly connected to the base; the first mirror group and the second mirror group are accommodated in an internal space formed after the shell and the base are fixedly connected.

[0059] See also Figure 4 , Figure 4 FIG. 1 is a schematic diagram showing the structure of another camera assembly according to an embodiment of the present disclosure. Figure 4 As shown, the camera assembly may include a first shell 201 , a first elastic member 202 , a magnet 203 , a carrier 204 , a coil 205 , a first mirror group 206 , a second elastic member 207 , a second mirror group 208 and a base 209 .

[0060] by Figure 4 For example, the first shell 201 can be fixedly connected to the base 209. The internal space formed by the fixed connection between the first shell 201 and the base 209 can accommodate the first mirror group 206 and the second mirror group 208. The above shell can serve as a protective shell for the camera assembly to play a protective and dust-proof role.

[0061] In one embodiment shown, the camera assembly further includes:

[0062] Carriers, coils and magnets;

[0063] Among them, the carrier, coil and magnet are accommodated in an internal space formed after the shell and the base are fixedly connected; the coil is arranged on the carrier in a surrounding manner, and the magnet is arranged around the carrier; the first mirror group is fixedly connected to the carrier; when the coil is energized, it generates electromagnetic induction with the magnet to form a driving force to drive the carrier to move in the vertical direction.

[0064] by Figure 4 For example, the internal space formed by the fixed connection between the first shell 201 and the base 209 can contain the magnet 203, the carrier 204 and the coil 205. The first mirror group 206 can be placed inside the carrier 204, and the coil 205 and the magnet 203 can be placed outside the first mirror group 206. For example, the coil 205 can be arranged around the outer surface of the carrier 204, and the magnet 203 can be arranged symmetrically outside the carrier 204.

[0065] It is worth noting that the first mirror group 206, the carrier 204 and the coil 205 can constitute the movable part of the camera assembly, that is, the part that generates displacement. After the coil 205 is energized, it can generate electromagnetic induction with the magnet 203 to form a driving force to drive the movable part to move.

[0066] In one embodiment shown, the camera assembly further includes:

[0067] A first elastic member is accommodated in an internal space formed after the housing and the base are fixedly connected and is located above the carrier;

[0068] A second elastic member is accommodated in an internal space formed after the shell and the base are fixedly connected, is located below the carrier, and is located above the second mirror group.

[0069] by Figure 4 For example, the first shell 201 and the base 209 are fixedly connected to form an internal space that can accommodate the first elastic member 202 and the second elastic member 207. The first elastic member 202 is located above the carrier 204, the second elastic member 207 is located below the carrier 204, and the second elastic member 207 is located above the second mirror group 208.

[0070] In one embodiment shown, the first elastic member is fixed inside the shell, and the lower surface of the first elastic member contacts the upper surface of the carrier; the second elastic member is fixed on the base, and the upper surface of the second elastic member contacts the lower surface of the carrier.

[0071] by Figure 4 For example, the first elastic member 202 can be fixed inside the shell 201, and the lower surface of the first elastic member 202 can contact the upper surface of the carrier 204 to apply a downward elastic force to the carrier 204; and the second elastic member 207 can be fixed on the base 209, and the upper surface of the second elastic member 207 can contact the lower surface of the carrier 204 to apply an upward elastic force to the carrier 204.

[0072] Through the combined action of the elastic forces of the first elastic member located above the carrier and the second elastic member located below the carrier, the carrier can drive the first mirror group to suspend above the second mirror group, and the movement of the first mirror group is driven by the movement of the carrier, thereby realizing the focusing function of the camera.

[0073] In one embodiment shown, the elastic coefficients of the first elastic member and the second elastic member are the same; the ratio of the driving force to the elastic coefficient is the displacement of the carrier in the vertical direction.

[0074] by Figure 4For example, the elastic coefficients of the first elastic member and the second elastic member are the same, which can ensure that when the coil is not energized and the carrier does not move, the elastic forces applied to the carrier in the up and down directions at the initial position are the same.

[0075] According to the driving force F and the elastic coefficient k, the displacement X=F / K generated by the mover part can be obtained.

[0076] In one embodiment shown, the elastic member includes a leaf spring.

[0077] For example, in order to save space in the camera assembly, the elastic member may be a leaf spring, the first elastic member may be an upper leaf spring, and the second elastic member may be a lower leaf spring.

[0078] In one embodiment shown, the camera assembly is a focus motor.

[0079] For example, the camera assembly may be a focus motor, the base may be a base of the motor, the focus motor may be arranged above the image sensor 104 , and the focus motor may drive the first lens group 102 to move toward or away from the second lens group 103 .

[0080] In one embodiment shown, a second shell is further provided below the base, and the base is fixedly connected to the second shell; the second shell is located above the image sensor, and an opening is provided on the second shell, and the opening is located below the light-transmitting hole.

[0081] See also Figure 5 , Figure 5 FIG. 1 is a schematic diagram showing the structure of another camera assembly according to an embodiment of the present disclosure. Figure 5 As shown, a second shell 302 may be provided below the base 301, and the base 301 may be fixedly connected to the second shell 302 to prevent dust from entering the opening of the second shell from the gap between the base 301 and the second shell 302. The second shell 302 may be located above the image sensor 303 to protect the image sensor 303, and the second shell 302 may support the aforementioned Figure 2 The second housing 302 is provided with an opening so that light can be irradiated onto the image sensor 303 located on the circuit board via the second mirror group 304, the light-transmitting hole and the opening.

[0082] In one embodiment shown, a filter is disposed in the opening.

[0083] by Figure 5 For example, a filter 305 may be provided in the opening on the second shell 302. For example, the filter may be blue glass, which is used to filter some invisible light to prevent interference with the imaging quality.

[0084] It can be seen from the above embodiments that by setting two lens groups in the camera assembly and by fixing the second lens group to the base, the second lens group covers the light-transmitting hole, thereby forming a sealed space between the second lens group, the base and the image sensor, preventing dust from falling into the space where the image sensor is located through the light-transmitting hole of the base. In addition, the second lens group can cooperate with the first lens group to achieve the focus of the camera through the movement of the first lens group. In the above process, since the second lens group and the base are fixed and will not move, the image sensor is in a dust-proof and enclosed space, avoiding abnormalities in the sensor.

[0085] Compared with the aforementioned embodiment of the camera assembly, the present disclosure also provides an embodiment of a smart device.

[0086] In this embodiment, the smart device may include the camera assembly described above.

[0087] Among them, the above-mentioned smart devices may include but are not limited to mobile phones, tablet computers, wearable devices, sensors, Internet of Things devices and other electronic devices.

[0088] As for the smart device embodiment, since it basically corresponds to the camera component embodiment, the relevant parts may refer to the partial description of the camera component embodiment.

[0089] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the disclosure disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0090] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

[0091] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprises a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0092] The method and device provided in the embodiments of the present disclosure are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present disclosure. The description of the above embodiments is only used to help understand the method of the present disclosure and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present disclosure, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present disclosure.

Claims

1. A camera assembly, characterized in that: At least: A base, a first mirror group, and a second mirror group located below the first mirror group; Wherein, a light-transmitting hole is provided on the base, and an image sensor is provided below the light-transmitting hole; The first mirror group can move in a direction perpendicular to the base to focus with the second mirror group; the second mirror group is fixedly connected to the base to cover the light-transmitting hole.

2. The camera assembly according to claim 1, characterized in that: The minimum inner diameter of the lower bottom surface of the second mirror group in contact with the base is greater than the diameter of the light-transmitting hole; the second mirror group covers the light-transmitting hole.

3. The camera assembly according to claim 1, characterized in that: The maximum outer diameter of the second mirror group is smaller than the diameter of the light-transmitting hole; the second mirror group is located in the light-transmitting hole, and the second mirror group is fixedly connected to the light-transmitting hole via a sealing middle piece.

4. The camera assembly according to claim 3, characterized in that: The sealing intermediate piece includes a sealing ring.

5. The camera assembly according to claim 1, characterized in that: The center line of the first mirror group and the center line of the second mirror group are located on the same axis.

6. The camera assembly according to claim 1, characterized in that: The camera assembly also includes: A first shell, wherein the first shell is fixedly connected to the base; the first mirror group and the second mirror group are accommodated in an internal space formed after the shell and the base are fixedly connected.

7. The camera assembly according to claim 6, characterized in that: The camera assembly also includes: Carriers, coils and magnets; Among them, the carrier, coil and magnet are accommodated in an internal space formed after the shell and the base are fixedly connected; the coil is arranged on the carrier in a surrounding manner, and the magnet is arranged around the carrier; the first mirror group is fixedly connected to the carrier; when the coil is energized, it generates electromagnetic induction with the magnet to form a driving force to drive the carrier to move in the vertical direction.

8. The camera assembly according to claim 7, characterized in that: The camera assembly also includes: A first elastic member is accommodated in an internal space formed after the housing and the base are fixedly connected and is located above the carrier; A second elastic member is accommodated in an internal space formed after the shell and the base are fixedly connected, is located below the carrier, and is located above the second mirror group.

9. The camera assembly according to claim 8, characterized in that: The first elastic member is fixed inside the shell, and the lower surface of the first elastic member contacts the upper surface of the carrier; the second elastic member is fixed on the base, and the upper surface of the second elastic member contacts the lower surface of the carrier.

10. The camera assembly according to claim 8, characterized in that: The elastic coefficients of the first elastic member and the second elastic member are the same; the ratio of the driving force to the elastic coefficient is the displacement of the carrier in the vertical direction.

11. The camera assembly according to claim 8, characterized in that: The elastic member includes a spring leaf.

12. The camera assembly according to claim 1, characterized in that: The camera assembly is a focus motor.

13. The camera assembly according to claim 1, characterized in that: A second shell is further provided below the base, and the base is fixedly connected to the second shell; the second shell is located above the image sensor, and an opening is provided on the second shell, and the opening is located below the light-transmitting hole.

14. The camera assembly according to claim 13, characterized in that: A filter is arranged in the opening.

15. A smart device, characterized in that: The smart device comprises the camera assembly according to any one of claims 1 to 14.

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