CN113114918A - Camera and electronic equipment - Google Patents
Camera and electronic equipment Download PDFInfo
- Publication number
- CN113114918A CN113114918A CN202110479399.6A CN202110479399A CN113114918A CN 113114918 A CN113114918 A CN 113114918A CN 202110479399 A CN202110479399 A CN 202110479399A CN 113114918 A CN113114918 A CN 113114918A
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- lens
- camera
- sleeve
- lens assembly
- image sensor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Studio Devices (AREA)
Abstract
The application provides a camera and electronic equipment, the camera includes: an image sensor; a lens including a first lens component and a second lens component which are separately arranged, the first lens component including an aperture stop, the second lens component including at least one first lens for focusing, the second lens component being arranged between the image sensor and the first lens component; and the driving mechanism is connected with the second lens assembly and is used for driving the second lens assembly to be far away from or close to the image sensor. The embodiment of the application can reduce the power consumption of the camera.
Description
Technical Field
The application relates to the technical field of communication, in particular to a camera and electronic equipment.
Background
With the popularization of electronic devices, the functions of the electronic devices are more and more complete, and the camera has become a standard configuration of the electronic devices. The lens is equivalent to the crystalline lens of human eyes, is the most key part of the camera and directly influences the photographing effect of the camera. The lens is connected with the motor, and focusing can be realized by driving the lens to move through the motor. Because people's quality requirement to the image of shooing is higher and higher, the size of camera lens is bigger and bigger to the motor needs to export great effort and promotes the camera lens and remove, leads to the consumption of camera to be great.
Disclosure of Invention
The embodiment of the application provides a camera and electronic equipment, and the problem that in the prior art, the power consumption of the camera is large due to the fact that the size of a lens is larger and larger can be solved.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present application provides a camera, where the camera includes:
an image sensor;
a lens including a first lens component and a second lens component which are separately arranged, the first lens component including an aperture stop, the second lens component including at least one first lens for focusing, the second lens component being arranged between the image sensor and the first lens component;
and the driving mechanism is connected with the second lens assembly and is used for driving the second lens assembly to be far away from or close to the image sensor.
Optionally, the first lens assembly further includes at least one second lens, and the at least one second lens is disposed between the aperture stop and the second lens assembly.
Optionally, the first lens is a plastic aspheric lens, and/or the second lens is a plastic aspheric lens.
Optionally, the focal power of the first lens assembly is greater than 0, and the focal power of the second lens assembly is less than 0.
Optionally, the camera further includes a housing, and the image sensor, the lens and the driving mechanism are all disposed in the housing.
Optionally, the housing includes a first sleeve, a second sleeve and a third sleeve, the first sleeve is fixedly connected with the second sleeve, the second sleeve is movably connected with the third sleeve, the third sleeve can be expanded or contracted, and the second sleeve is used for accommodating the third sleeve when the third sleeve is contracted;
the first lens assembly is arranged in the third sleeve, and the second lens assembly and the driving mechanism are arranged in the first sleeve.
Optionally, the camera is a fixed-focus camera.
Optionally, the camera further includes an infrared cut-off filter, and the infrared cut-off filter is disposed between the second lens assembly and the image sensor.
In a second aspect, an embodiment of the present application provides an electronic device, where the electronic device includes the camera described in the first aspect.
In an embodiment of the present application, the camera includes: an image sensor; a lens including a first lens component and a second lens component which are separately arranged, the first lens component including an aperture stop, the second lens component including at least one first lens for focusing, the second lens component being arranged between the image sensor and the first lens component; and the driving mechanism is connected with the second lens assembly and is used for driving the second lens assembly to be far away from or close to the image sensor. Therefore, through the first lens assembly and the second lens assembly which are separately arranged, the driving mechanism only needs to drive the second lens assembly to be far away from or close to the image sensor, and the power consumption of the camera can be reduced.
Drawings
Fig. 1 is one of schematic structural diagrams of a camera provided in an embodiment of the present application;
fig. 2 is a second schematic structural diagram of a camera according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The following describes in detail a camera provided in the embodiments of the present application with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a camera provided in an embodiment of the present application, and as shown in fig. 1, the camera includes:
an image sensor 11;
a lens 12, wherein the lens 12 includes a first lens assembly 121 and a second lens assembly 122 which are separately disposed, as shown in fig. 2, the first lens assembly 121 includes an aperture stop 1211, the second lens assembly 122 includes at least one first lens 1221 for focusing, and the second lens assembly 122 is disposed between the image sensor 11 and the first lens assembly 121;
and the driving mechanism 13, wherein the driving mechanism 13 is connected with the second lens assembly 122, and is used for driving the second lens assembly 122 to move away from or close to the image sensor.
The image sensor 11 may be a photosensitive chip. The aperture stop 1211 may be used to constrain the beam aperture. The driving mechanism 13 may be configured to drive the second lens assembly 122 to move away from or close to the image sensor along the optical axis for focusing. The drive mechanism 13 may comprise a drive motor. The at least one first lens 1221 may include the first lens 1221, or may include a lens group composed of a plurality of first lenses 1221.
It should be noted that the at least one first lens 1221 may include only one first lens 1221, or may include a lens group composed of a plurality of the first lenses 1221. The first lens assembly 121 may include at least one second lens. The lens surface of the first lens 1221 may be an even aspheric surface, and the lens surface of the second lens may be an even aspheric surface. The first lens 1221 and the second lens may both satisfy an aspheric formula of an aspheric surface:
where Z is the sag of a surface parallel to the Z axis, the Z axis coinciding with the optical axis, c is the inverse of the radius of curvature of the aspheric surface, r is the aperture radius, K is the conic constant, A, B, C, D, E, F, G and H are aspheric coefficients.
As shown in fig. 2, for example, the at least one first lens 1221 includes one first lens 1221, and the first lens assembly 121 includes four second lenses, which may be a second lens a1, a second lens a2, a second lens a3 and a second lens a 4. The second lens a1 may include an aspheric surface s1 and an aspheric surface s2, the second lens a2 may include an aspheric surface s3 and an aspheric surface s4, the second lens a3 may include an aspheric surface s5 and an aspheric surface s6, the second lens a4 may include an aspheric surface s7 and an aspheric surface s8, and the first lens 1221 may include an aspheric surface s9 and an aspheric surface s 10. For example, the design parameters of the aperture stop 1211 and the aspheric surfaces s1 to s10 can be as shown in table 1 and table 2:
TABLE 1
TABLE 2
Where H may be set to 0, or other values. In practical applications, in order to improve the focusing effect, the sensitivity of the lens included in the at least one first lens 1221, including but not limited to eccentricity and Tilt value, may be optimized during designing the parameters of the lenses in the lens 12.
Taking the camera as an example of a built-in camera of a mobile phone, in the prior art, the camera in the mobile phone pushes the whole lens 12 to move back and forth through a motor to realize focusing when automatically focusing, along with the fact that the size of the lens 12 is larger and larger, the weight of the lens 12 is also heavier and heavier, the motor needs a larger driving force to push the lens 12 to move, so that the power consumption of the camera is larger, the power consumption of the mobile phone is too fast when the mobile phone takes a picture, and the camera performance is influenced by easy heating. In the embodiment of the present application, through the first lens assembly 121 and the second lens assembly 122 which are separately arranged, the driving mechanism 13 only needs to drive the second lens assembly 122 to move away from or close to the image sensor, and power consumption of the camera can be reduced.
In an embodiment of the present application, the camera includes: an image sensor 11; a lens 12, the lens 12 including a first lens assembly 121 and a second lens assembly 122 separately disposed, the first lens assembly 121 including an aperture stop 1211, the second lens assembly 122 including at least one first lens 1221 for focusing, the second lens assembly 122 disposed between the image sensor 11 and the first lens assembly 121; and the driving mechanism 13, wherein the driving mechanism 13 is connected with the second lens assembly 122, and is used for driving the second lens assembly 122 to move away from or close to the image sensor. In this way, by separately providing the first lens assembly 121 and the second lens assembly 122, the driving mechanism 13 only needs to drive the second lens assembly 122 away from or close to the image sensor, and power consumption of the camera can be reduced.
Optionally, the first lens assembly 121 further includes at least one second lens, and the at least one second lens is disposed between the aperture stop 1211 and the second lens assembly 122.
The first lens assembly 121 may include only one second lens, or may include a lens group formed by a plurality of second lenses, which is not limited in this embodiment of the present invention.
In this embodiment, the first lens assembly 121 further includes at least one second lens, and the at least one second lens is disposed between the aperture stop 1211 and the second lens assembly 122, so that optical imaging can be achieved by the at least one first lens 1221 and the at least one second lens in cooperation.
Optionally, the first lens 1221 is a plastic aspheric lens, and/or the second lens is a plastic aspheric lens.
In this embodiment, the first lens 1221 is a plastic aspheric lens, and/or the second lens is a plastic aspheric lens, and the lens 12 is designed based on the plastic aspheric lens, so that the optical imaging effect is better.
Optionally, the focal power of the first lens assembly 121 is greater than 0, and the focal power of the second lens assembly 122 is less than 0.
The optical structure of the camera adopts two sets of optical structures, which are a first lens assembly 121 and a second lens assembly 122, respectively, the first lens assembly 121 may have positive focal power, and the second lens assembly 122 may have negative focal power.
In this embodiment, the optical power of the first lens assembly 121 is greater than 0, and the optical power of the second lens assembly 122 is less than 0, so that the first lens assembly 121 and the second lens assembly 122 can cooperate to enable light to pass through the lens 12 to be imaged on the image sensor 11.
Optionally, the camera further includes a housing, and the image sensor 11, the lens 12 and the driving mechanism 13 are all disposed in the housing.
In this embodiment, the camera further includes a housing, the image sensor 11, the lens 12 and the driving mechanism 13 are all disposed in the housing,
optionally, as shown in fig. 1, the housing includes a first sleeve, a second sleeve and a third sleeve, the first sleeve is fixedly connected with the second sleeve, the second sleeve is movably connected with the third sleeve, the third sleeve can be extended or retracted, and the second sleeve is used for accommodating the third sleeve when the third sleeve is retracted;
the first lens assembly 121 is disposed in the third sleeve, and the second lens assembly 122 and the driving mechanism 13 are disposed in the first sleeve.
It should be noted that, by providing the first sleeve, the second sleeve and the third sleeve, the camera may have a fixed-focus telescopic telephoto lens, the third sleeve may extend from the electronic device, and the driving mechanism 13 is disposed in the first sleeve and is always located in the electronic device.
Taking the camera as the built-in camera of the mobile phone as an example, in the fixed focus telescopic telephoto lens in the built-in camera of the mobile phone in the prior art, because the motor is arranged in the third sleeve, the size of the telescopic part of the shell is too large, the part extending out of the mobile phone cannot be further reduced, the space occupied by the mobile phone is large, and the appearance of the mobile phone is affected. In the embodiment of the present application, since the driving mechanism 13 is disposed on the first sleeve, the first sleeve and the second sleeve can be designed to be smaller, so that the outer diameter of the protruding portion of the camera can be reduced.
In this embodiment, the housing includes a first sleeve, a second sleeve and a third sleeve, the first sleeve is fixedly connected with the second sleeve, the second sleeve is movably connected with the third sleeve, the third sleeve can be expanded or contracted, and the second sleeve is used for accommodating the third sleeve when the third sleeve is contracted; the first lens assembly 121 is disposed in the third sleeve, and the second lens assembly 122 and the driving mechanism 13 are disposed in the first sleeve. In this way, since the drive mechanism 13 is provided to the first sleeve, the first sleeve and the second sleeve can be designed to be small, so that the outer diameter dimension of the projecting portion of the camera can be reduced.
Optionally, the camera is a fixed-focus camera.
Optionally, as shown in fig. 2, the camera further includes an infrared cut filter 14, and the infrared cut filter 14 is disposed between the second lens assembly 122 and the image sensor 11.
The substrate of the infrared cut-off filter 14 may be flat glass. The surface of the flat glass may be coated with an AR antireflection film and an IR cut-off film, respectively, to form the infrared cut-off filter 14.
In this embodiment, the camera further includes an infrared cut-off filter 14, where the infrared cut-off filter 14 is disposed between the second lens assembly 122 and the image sensor 11, and infrared light can be filtered through the infrared cut-off filter 14, so as to improve imaging quality.
As a specific implementation manner, when the camera in the embodiment of the present application is used to take a picture, light of a scene is imaged on the image sensor 11 through the deflection of the lens 12, and finally, a taken picture is obtained by processing data of the image sensor 11. When the object distance of the second lens assembly 122 is different, the second lens assembly 122 can move parallel to the optical axis under the action of the driving mechanism 13, so that the lens 12 can clearly image at different object distances. When the shot scene is moved from far to near, the second lens assembly 122 moves along the optical axis toward the image sensor 11 to realize focusing, as shown in fig. 2, a distance L between a side of the second lens assembly 122 away from the image sensor 11 and the image sensor 11 becomes smaller as the second lens assembly 122 moves toward the image sensor 11. The distance L is smaller when shooting a close view than when shooting a distant view. When the second lens assembly 122 moves along the optical axis for focusing, the total length of the optical system can be kept unchanged.
The embodiment of the application also provides electronic equipment, and the electronic equipment comprises the camera.
Since other structures of the electronic device are the prior art, and the camera has been described in detail in the above embodiments, details of the structure of the electronic device in this embodiment are not described again.
In an embodiment of the present application, the electronic device includes a camera, and the camera includes: an image sensor 11; a lens 12, the lens 12 including a first lens assembly 121 and a second lens assembly 122 separately disposed, the first lens assembly 121 including an aperture stop 1211, the second lens assembly 122 including at least one first lens 1221 for focusing, the second lens assembly 122 disposed between the image sensor 11 and the first lens assembly 121; and the driving mechanism 13, wherein the driving mechanism 13 is connected with the second lens assembly 122, and is used for driving the second lens assembly 122 to move away from or close to the image sensor. In this way, by separately providing the first lens assembly 121 and the second lens assembly 122, the driving mechanism 13 only needs to drive the second lens assembly 122 to move away from or close to the image sensor, so that the power consumption of the camera can be reduced, and the power consumption of the electronic device can be reduced.
In the description of the present application, it is to be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, are used in the orientation or positional relationship indicated in the drawings to facilitate the description of the application and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the application. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that the terms "mounted," "disposed," and "connected" are to be construed broadly unless otherwise explicitly stated or limited. For example, the connection can be fixed, detachable or integrated; may be directly connected or indirectly connected through an intermediate. The fixed connection can be common technical schemes such as welding, threaded connection and clamping. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A camera head, characterized in that the camera head comprises:
an image sensor;
a lens including a first lens component and a second lens component which are separately arranged, the first lens component including an aperture stop, the second lens component including at least one first lens for focusing, the second lens component being arranged between the image sensor and the first lens component;
and the driving mechanism is connected with the second lens assembly and is used for driving the second lens assembly to be far away from or close to the image sensor.
2. The camera of claim 1, wherein the first lens assembly further comprises at least one second optic disposed between the aperture stop and the second lens assembly.
3. The camera of claim 2, wherein the first lens is a plastic aspheric lens, and/or the second lens is a plastic aspheric lens.
4. The camera of claim 1, wherein the optical power of the first lens assembly is greater than 0 and the optical power of the second lens assembly is less than 0.
5. The camera of claim 1, further comprising a housing, wherein the image sensor, lens, and drive mechanism are disposed within the housing.
6. The camera head according to claim 5, wherein the housing comprises a first sleeve, a second sleeve and a third sleeve, the first sleeve is fixedly connected with the second sleeve, the second sleeve is movably connected with the third sleeve, the third sleeve can be expanded or contracted, and the second sleeve is used for accommodating the third sleeve when the third sleeve is contracted;
the first lens assembly is arranged in the third sleeve, and the second lens assembly and the driving mechanism are arranged in the first sleeve.
7. The camera of claim 1, wherein the camera is a fixed focus camera.
8. The camera of claim 1, further comprising an infrared cut filter disposed between the second lens assembly and the image sensor.
9. An electronic device, characterized in that the electronic device comprises a camera according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110479399.6A CN113114918B (en) | 2021-04-30 | 2021-04-30 | Camera and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110479399.6A CN113114918B (en) | 2021-04-30 | 2021-04-30 | Camera and electronic equipment |
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| Publication Number | Publication Date |
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| CN113114918A true CN113114918A (en) | 2021-07-13 |
| CN113114918B CN113114918B (en) | 2022-12-23 |
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| CN202110479399.6A Active CN113114918B (en) | 2021-04-30 | 2021-04-30 | Camera and electronic equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023236486A1 (en) * | 2022-06-06 | 2023-12-14 | Oppo广东移动通信有限公司 | Camera and electronic apparatus |
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| CN113114918B (en) | 2022-12-23 |
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