CN111308833A - Camera module and electronic equipment - Google Patents
Camera module and electronic equipment Download PDFInfo
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- CN111308833A CN111308833A CN202010212038.0A CN202010212038A CN111308833A CN 111308833 A CN111308833 A CN 111308833A CN 202010212038 A CN202010212038 A CN 202010212038A CN 111308833 A CN111308833 A CN 111308833A
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- lens
- optical axis
- pressing
- lens group
- camera module
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/004—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid
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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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- Multimedia (AREA)
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Automatic Focus Adjustment (AREA)
- Lens Barrels (AREA)
- Studio Devices (AREA)
Abstract
The application relates to a camera module and an electronic device. The module of making a video recording includes: a lens base; the liquid lens is connected with the lens base and comprises a closed bag body and liquid arranged in the closed bag body; the first extrusion element comprises a first driving piece and a first lens group, the first driving piece is connected with the lens base and the first lens group, the first lens group comprises a first extrusion part and at least one lens arranged on the first extrusion part, the optical axis of the first lens group is a first optical axis, the liquid lens is arranged on the object side of the first lens group along the direction of the first optical axis, and the first driving piece can drive the first lens group to move along the direction of the first optical axis so as to enable the first extrusion part to extrude the liquid lens; the second extrusion element is connected with the lens base and is arranged at intervals with the first extrusion element, and the second extrusion element can extrude the liquid lens along the direction of the first optical axis; and the image sensor is arranged on one side of the first extrusion element, which is far away from the liquid lens, and is connected with the lens base. The camera module has a large zoom range and can be miniaturized.
Description
Technical Field
The application relates to the field of making a video recording, especially relates to a module and electronic equipment make a video recording.
Background
The traditional camera module is provided with a driving piece to change the relative position of a moving part lens so as to realize the zooming effect. Generally, the camera module with the zooming effect needs a large lens moving space, so that the axial size of the module is too large, the miniaturization design of the equipment is restricted (for example, the thickness of the equipment is reduced), and the requirement of the market on the miniaturization design of the electronic equipment cannot be met.
Disclosure of Invention
The embodiment of the application provides a camera module and electronic equipment, and aims to solve the problem of how to reduce the size of the camera module and the equipment.
A camera module, comprising:
a lens base;
the liquid lens is connected with the lens base and comprises a closed bag body and liquid arranged in the closed bag body;
the first extrusion element comprises a first driving piece and a first lens group, the first driving piece is connected with the lens base and the first lens group, the first lens group comprises a first extrusion part and at least one lens arranged on the first extrusion part, the optical axis of the first lens group is a first optical axis, the liquid lens is arranged on the object side of the first lens group along the direction of the first optical axis, and the first driving piece can drive the first lens group to move along the direction of the first optical axis so that the first extrusion part extrudes the liquid lens;
the second extrusion element is connected with the lens base and is arranged at a distance from the first extrusion element, and the second extrusion element can extrude the liquid lens along the direction of the first optical axis; and
and the image sensor is arranged on one side of the first extrusion element, which is far away from the liquid lens, and is connected with the lens base.
In the above-mentioned module of making a video recording first extrusion component with second extrusion component can follow the direction extrusion of first optical axis the liquid lens makes liquid lens takes place to deform in order to change the refractive power to light (change liquid lens focus promptly), thereby plays the effect of governing system focus. Particularly, when the first driving element drives the first lens group to move, the first pressing portion and the lenses arranged on the first pressing portion can move synchronously along the direction of the first optical axis, that is, when the first pressing portion approaches and presses the liquid lens, the lenses in the first lens group also approach the liquid lens, so that when the liquid lens is pressed to deform and refractive power changes, the distance between the lenses in the first lens group and the liquid lens is reduced, and therefore the combined focal length of the liquid lens and the first lens group can be further adjusted, which is beneficial to enabling an optical system to have a larger zoom range. In the above-mentioned module of making a video recording first mirror group is extruding behind the liquid lens, can realize great focus adjustment's effect with less displacement to be favorable to dwindling the inside space that is used for moving lens of the module of making a video recording, dwindle promptly the module of making a video recording is in the ascending size of axial, and then realizes the miniaturized design of module.
In one embodiment, the first driving member includes a first elastic sheet, a first coil, and a first magnet, one end of the first elastic sheet is connected to the lens holder, the other end of the first elastic sheet is connected to the first pressing portion, the first coil is disposed on the first pressing portion, and the first magnet is disposed on the lens holder.
In one embodiment, the second pressing element includes a second elastic sheet, a second pressing portion, a second coil and a second magnet, one end of the second elastic sheet is connected to the lens base, the other end of the second elastic sheet is connected to the second pressing portion, the second coil is disposed on the second pressing portion, the second magnet is disposed on the lens base, and the second coil can be acted by a magnetic field of the second magnet when the lens base is powered on, so that the second pressing portion can be driven to press the liquid lens along the direction of the first optical axis.
In one embodiment, the camera module comprises at least two second pressing elements, the second pressing elements can move independently, and the second pressing elements are arranged at intervals.
In one embodiment, the first pressing portion includes a first pressing end, the second pressing element includes a second pressing end, and the first pressing end and the second pressing end are used for pressing the liquid lens, and the camera module includes at least one of the following solutions:
the first extrusion end is of a cuboid structure, an arc structure or a cylindrical structure; or
The second extrusion end is of a cuboid structure, an arc structure or a cylindrical structure.
In one embodiment, the first pressing portion includes a first pressing end, the second pressing element includes a second pressing end, the first pressing end and the second pressing end are used for pressing the liquid lens, the first pressing end and the second pressing end form a pressing structure for pressing the liquid lens, and a projection of the pressing structure to a plane perpendicular to the first optical axis is rotationally symmetric with respect to the first optical axis.
In one embodiment, the camera module comprises at least one of the following solutions:
the camera module comprises a second lens group, the second lens group comprises at least one lens, the second lens group is connected with the lens base and is arranged at the image side of the first lens group along the direction of the first optical axis; and
the camera module comprises a third lens group, the third lens group comprises at least one lens, the third lens group is connected with the lens base and is arranged along the direction of the first optical axis, and the liquid lens is far away from one side of the first lens group.
A camera module, comprising:
a lens base;
the liquid lens is connected with the lens base and comprises a closed bag body and liquid arranged in the closed bag body;
the first extrusion element comprises a first driving piece and a first lens group, the first driving piece is connected with the lens base and the first lens group, the first lens group comprises a first extrusion part and at least one lens arranged on the first extrusion part, the optical axis of the first lens group is a first optical axis, the liquid lens is arranged on the object side of the first lens group along the direction of the first optical axis, and the first driving piece can drive the first lens group to move along the direction of the first optical axis so that the first extrusion part extrudes the liquid lens;
the reflecting element is connected with the lens base and arranged on one side of the liquid lens, which is far away from the first extrusion element, along the direction of the first optical axis, and the reflecting element is used for reflecting light rays to the liquid lens; and
and the image sensor is arranged on one side of the first extrusion element, which is far away from the liquid lens, and is connected with the lens base.
The first extrusion element in the camera module can extrude the liquid lens along the direction of the first optical axis, so that the liquid lens deforms to change the refractive power of light rays (namely, the focal length of the liquid lens), and the focal length of the system is adjusted. Particularly, when the first driving element drives the first lens group to move, the first pressing portion and the lenses arranged on the first pressing portion can move synchronously along the direction of the first optical axis, that is, when the first pressing portion approaches and presses the liquid lens, the lenses in the first lens group also approach the liquid lens, so that when the liquid lens is pressed to deform and refractive power changes, the distance between the lenses in the first lens group and the liquid lens is reduced, and therefore the combined focal length of the liquid lens and the first lens group can be further adjusted, which is beneficial to enabling an optical system to have a larger zoom range. In the above-mentioned module of making a video recording first mirror group is extruding behind the liquid lens, can realize great focus adjustment's effect with less displacement to be favorable to dwindling the inside space that is used for moving lens of the module of making a video recording, dwindle promptly the module of making a video recording is in the ascending size of axial, and then realizes the miniaturized design of module. In addition, the adoption of reflection component can make the module of making a video recording has periscopic formula structure to can change the mounting means of module of making a video recording in equipment, for example the thickness direction that makes the major axis direction of module perpendicular to equipment, thereby be favorable to reducing the thickness like electronic equipment such as smart mobile phone, panel computer.
In one embodiment, the first driving member includes a first elastic sheet, a first coil, and a first magnet, one end of the first elastic sheet is connected to the lens holder, the other end of the first elastic sheet is connected to the first pressing portion, the first coil is disposed on the first pressing portion, and the first magnet is disposed on the lens holder.
In one embodiment, the first pressing element includes a plurality of first driving members disposed at intervals and connected to the first pressing portion, the first pressing portion defines an inner cavity communicating with opposite sides along the first optical axis, and the lenses of the first lens group are disposed in the inner cavity.
In one embodiment, the camera module comprises a second pressing element, the second pressing element is connected with the lens base and is arranged at a distance from the first pressing element, and the second pressing element can press the liquid lens along the direction of the first optical axis.
An electronic device comprises a shell and the camera module, wherein the camera module is arranged on the shell.
Above-mentioned module of making a video recording can shorten the axial dimensions when possessing great zoom scope, consequently works as when electronic equipment adopts above-mentioned module of making a video recording, electronic equipment can be with less space assembly the module of making a video recording, and possess good zoom performance simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a camera module according to an embodiment of the present application;
fig. 2 is a schematic view of a partial structure of a camera module according to an embodiment of the present disclosure;
fig. 3 is a schematic view of a partial structure of a camera module according to an embodiment of the present disclosure;
fig. 4 is a schematic view of a partial structure of a camera module according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a camera module according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a camera module with a triple prism in an embodiment of the present application;
fig. 7 is a schematic structural diagram of a camera module with a triple prism in an embodiment of the present application;
fig. 8 is a schematic structural diagram of a camera module with a triple prism in an embodiment of the present application;
fig. 9 is a schematic view of a partial structure of a camera module according to an embodiment of the present application;
fig. 10 is a schematic view of a partial structure of a camera module according to an embodiment of the present application;
fig. 11 is a schematic view of a partial structure of a camera module according to an embodiment of the present application;
fig. 12 is a schematic view of a partial structure of a camera module according to an embodiment of the present application;
fig. 13 is a schematic diagram of an electronic device in an embodiment of the present application.
The image capturing module 10, the lens holder 110, the light through hole 111, the fixing plate 112, the mounting cavity 113, the cavity surface 1131, the liquid lens 120, the closed bag 121, the liquid 122, the first pressing element 130, the first driving member 131, the first elastic sheet 1311, the first coil 1312, the first magnet 1313, the first lens group 132, the first optical axis 1301, the first pressing end 1302, the inner cavity 1304, the first pressing portion 1321, the lens 1322, the second pressing element 140, the second pressing end 1402, the second elastic sheet 141, the second pressing portion 142, the second coil 143, the second magnet 144, the image sensor 150, the optical filter 160, the second lens group 170, the third lens group 180, the reflecting element 190, and the electronic device 20.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The traditional camera module is provided with a driving piece to change the relative position of a moving part lens so as to realize the zooming effect. Generally, the camera module with the zooming effect needs a large lens moving space, so that the axial size of the module is too large, the miniaturization design of the equipment is restricted (for example, the thickness of the equipment is reduced), and the requirement of the market on the miniaturization design of the electronic equipment cannot be met. Therefore, the embodiment of the application provides a camera module and an electronic device to solve the above problems.
Referring to fig. 1, some embodiments of the present disclosure provide a camera module 10, where the camera module 10 includes a lens holder, a liquid lens 120, a first pressing element 130, a second pressing element 140, and an image sensor 150. The liquid lens 120, the first pressing element 130, the second pressing element 140 and the image sensor 150 are all disposed in the lens base. The image sensor 150 is a CCD (charge coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor).
The first pressing element 130 includes a first driving element 131 and a first lens set 132, the first driving element 131 connects the lens base and the first lens set 132, and the first lens set 132 includes a first pressing portion 1321 and at least one lens 1322 disposed on the first pressing portion 1321. The optical axis of the first lens group 132 is the first optical axis 1301, the liquid lens 120 is disposed at the object side of the first lens group 132 along the first optical axis 1301, and the image sensor 150 is disposed at the image side of the first lens group 132 along the first optical axis 1301. The first driving element 131 can drive the first lens group 132 to move along the first optical axis 1301, so that the first pressing portion 1321 presses the liquid lens 120.
The second pressing member 140 is spaced apart from the first pressing member 130, and the second pressing member 140 can also press the liquid lens 120 in the direction of the first optical axis 1301, so as to deform the liquid lens 120. The first pressing member 130 and the second pressing member 140 can move independently of each other.
In the above, part of the structures of the first pressing element 130 and the second pressing element 140 can move along the first optical axis 1301 to press the liquid lens 120, so that the liquid lens 120 deforms to change the refractive power, and further, the focal length of the optical system is changed by matching with other lenses 1322 in the camera module 10.
Referring to fig. 1, in an embodiment, the camera module 10 includes a fixing plate 112, two opposite sides of the fixing plate 112 along the first optical axis 1301 are both planar, the lens base has a light through hole 111 at an object end, and the fixing plate 112 covers the light through hole 111. The fixing plate 112 has high transmittance to visible light, for example, can transmit 90% or more of visible light, and the fixing plate 112 may be made of glass. The liquid lens 120 includes a closed capsule 121 and a liquid 122 filling the closed capsule 121, and the closed capsule 121 and the liquid 122 also have high transmittance to visible light. The closed capsule 121 has elasticity, the closed capsule 121 is fixedly connected to one side of the fixing plate 112 close to the first lens group 132, and one side of the closed capsule 121 connected to the fixing plate 112 is a plane. Incident light can enter the fixed plate 112 from the object side of the lens holder, then enter the closed capsule 121 from one side and pass through the liquid 122, and then exit the closed capsule 121 from the other side to the first lens group 132. The refractive index of the liquid 122 in the closed capsule 121 is greater than that of air, so that incident light is refracted when passing through the closed capsule 121 between the liquid 122 and the outside air, and one of the factors determining the refraction angle is the curvature of the closed capsule 121 in the corresponding light exit region. It should be noted that, in some embodiments, at least one of two sides of the fixing plate 112 along the direction of the first optical axis 1301 may also be a curved surface, and when the side of the fixing plate 112 connected to the encloser 121 is a curved surface, the surface of the encloser 121 fixed to the side will have the same curved surface type as the side.
In this embodiment, the first driving member 131 includes a first resilient piece 1311, a first coil 1312, and a first magnet 1313. The number of the first elastic pieces 1311 is two, the two first elastic pieces 1311 are arranged at intervals along the direction of the first optical axis 1301, one end of each first elastic piece 1311 is connected to the lens base, the other end of each first elastic piece 1311 is connected to the first pressing portion 1321, and the first elastic pieces 1311 can support the first lens group 132 and enable the first lens group 132 to reset. The first coil 1312 is disposed on one side of the first pressing portion 1321, and a lens 1322 is mounted on the other side of the first pressing portion 1321 opposite to the first pressing portion, where an optical axis of the lens 1322 is the first optical axis 1301. The first magnet 1313 is disposed on the lens holder corresponding to the first coil 1312, and the first magnet 1313 may be a magnet. The first coil 1312 when energized can be acted on by the magnetic field of the first magnet 1313, and can drive the first pressing portion 1321 to move in the direction of the first optical axis 1301. When the first coil 1312 is not energized, the first pressing portion 1321 is spaced from the liquid lens 120 in the direction of the first optical axis 1301 and does not press the liquid lens 120. When the first coil 1312 is energized in an expected manner, the first coil 1312 is acted by an ampere force under the magnetic field of the first magnet 1313, and drives the first lens group 132 to approach the liquid lens 120 along the direction of the first optical axis 1301, and further, the current of the first coil 1312 is increased to enable the first pressing portion 1321 in the first lens group 132 to press the edge region of the liquid lens 120, so as to deform the liquid lens 120, thereby changing the curvature of the surface of the closed capsule 121 on the side close to the first lens group 132, and further changing the refractive power of the liquid lens 120.
Similar to the first pressing element 130, the second pressing element 140 includes a second elastic sheet 141, a second pressing portion 142, a second coil 143, and a second magnet 144. The number of the second resilient tabs 141 is two, the two second resilient tabs 141 are spaced apart from each other along the direction of the first optical axis 1301, one end of each second resilient tab 141 is connected to the lens holder, the other end of each second resilient tab 141 is connected to the second pressing portion 142, and the second resilient tabs 141 can support the second lens group 170 and reset the second lens group 170. The second coil 143 is disposed on the second pressing portion 142, the second magnet 144 is disposed on the lens holder corresponding to the second coil 143, and the second magnet 144 may be a magnet. The second coil 143 when energized can be acted on by the magnetic field of the second magnet 144, so that the second pressing portion 142 can be driven to move in the direction of the first optical axis 1301. When the second coil 143 is not energized, the second pressing portion 142 is spaced from the liquid lens 120 in the direction of the first optical axis 1301 and does not press the liquid lens 120. When the second coil 143 is energized in an expected manner, the second coil 143 is acted by an ampere force under the magnetic field of the second magnet 144, and drives the second lens group 170 to approach the liquid lens 120 along the direction of the first optical axis 1301, and further, the current of the second coil 143 is increased to enable the second pressing portion 142 in the second lens group 170 to press the edge region of the liquid lens 120, so as to deform the liquid lens 120, thereby changing the curvature of the surface of the closed capsule 121 on the side close to the second lens group 170, and further changing the refractive power of the liquid lens 120.
The first pressing element 130 and the second pressing element 140 in the camera module 10 can press the liquid lens 120 along the direction of the first optical axis 1301, so that the liquid lens 120 is deformed to change the refractive power of light (i.e. change the focal length of the liquid lens 120), thereby adjusting the focal length of the system. Particularly, when the first driving element 131 drives the first lens group 132 to move, the first pressing portion 1321 and the lens 1322 disposed on the first pressing portion 1321 can move synchronously along the direction of the first optical axis 1301, that is, when the first pressing portion 1321 and the second pressing portion 142 approach and press the liquid lens 120, the central area of the closed capsule 121 on the side close to the first lens group 132 further protrudes to increase the refractive power (decrease the focal length), and the lens 1322 in the first lens group 132 also approaches the liquid lens, so that when the liquid lens 120 is pressed and deformed to increase the refractive power, the distance between the lens 1322 in the first lens group 132 and the liquid lens 120 is also reduced, so that the refractive power of the combined lens 1322 formed by the liquid lens 120 and the first lens group 132 can be further increased (i.e. the combined focal length is further reduced), after the first lens group 132 presses the liquid lens 120, a larger focal length adjustment effect can be achieved with a smaller displacement, thereby facilitating a reduction in the space inside the camera module 10 for moving the lens 1322. Accordingly, the size of the camera module 10 in the axial direction in the embodiment of the present application can be designed smaller than that of a zoom system having the same zoom range, so that a compact design of the module can be achieved.
For example, for a module that achieves zooming by moving the lens 1322 alone, the conversion from a tele characteristic to a short-focus characteristic requires a greater distance of movement of the lens 1322. In the above embodiment of the present application, when the first lens group 132 is located far away from the liquid lens 120, the camera module 10 has a telephoto characteristic; when the first lens group 132 gradually approaches the liquid lens 120, the focal length of the camera module 10 gradually decreases; when the camera module 10 starts to squeeze the liquid lens 120, the camera module 10 will quickly switch from long focus to short focus, so as to switch from long-shot shooting to short-shot shooting. Of course, in some embodiments, when the first lens group 132 does not press the liquid lens 120, the image capturing module 10 may also have a short focus characteristic, and when the first lens group 132 presses the liquid lens 120, the system focal length may be further shortened, so that the image capturing module 10 can achieve the effect of macro photography.
On the other hand, since the first pressing member 130 and the second pressing member 140 are disposed at an interval and the first pressing portion 1321 and the second pressing portion 142 are driven by different driving structures, the first pressing portion 1321 and the second pressing portion 142 can move in the direction of the first optical axis 1301 independently of each other. For example, when the first pressing portion 1321 does not press the liquid lens 120, the second pressing portion 142 can press the liquid lens 120 to deform the liquid lens 120, thereby changing the system focal length. The camera module 10 in the above embodiment can also adjust the system focal length only by the second pressing portion 142, so as to increase the flexibility and the adjustment range of the system focal length. Specifically, when the action of the second pressing portion 142 on the liquid lens 120 is insufficient to provide a sufficient refractive power for the system, the refractive power of the system can be further increased by making the first lens group 132 close to the liquid lens 120 and making the lens 1322 in the first lens group 132 close to the liquid lens 120. Of course, when it is still difficult to obtain sufficient refractive power, the first lens group 132 may be further moved closer to and squeeze the liquid lens 120, so as to further deform the liquid lens 120 and increase the curvature of the central region of the closed capsule 121 close to the first lens group 132 (make the side more convex), and at this time, the liquid lens 120 has a stronger ability to converge light, thereby being beneficial to reducing the focal length of the system.
In addition, the first pressing portion 1321 and/or the second pressing portion 142 may press the liquid lens 120 to change the refraction direction of the incident light, thereby providing an optical anti-shake effect to the image pickup module 10.
In addition to providing a magnet, a coil, or the like as a driving member, the first driving member 131 and/or the second pressing member 140 in some embodiments may be a piezoelectric ceramic or the like that can be deformed under current control.
In particular, in some embodiments, the side of the closed bladder 121 adjacent to the first lens group 132 is obviously convex in the natural state without being compressed, and the closed bladder 121 can provide the refractive power to the system in the natural state. In these embodiments, the focal length of the camera module 10 when the liquid lens 120 is not compressed depends on the liquid lens 120 and other conventional lenses. In other embodiments, the side of enclosed capsule 121 adjacent to first mirror group 132 in the compressed natural state is approximately planar, and focusing can be achieved by moving first mirror group 132. In these embodiments, the focal length of the camera module 10 when the liquid lens 120 is not compressed depends on other conventional lenses than the liquid lens 120. It should be noted that the number of the lenses 1322 in the first lens group 132 may be one, or two, three or more, when the first lens group 132 includes more than two lenses 1322, each lens 1322 is coaxially disposed, and a central axis of each lens 1322 is the first optical axis 1301. In some embodiments, the first pressing portion 1321 includes a carrier and a lens barrel, the lens 1322 is installed in the lens barrel, one side of the carrier is fixed to a side edge of the lens barrel, and the other side opposite to the carrier is connected to the first driving member 131.
In some embodiments, the number of the first elastic sheets 1311 in the first driving member 131 may be, but is not limited to, one, two or more, and likewise, the number of the first coils 1312 may be, but is not limited to, one, two or more, and the number of the first magnets 1313 may be, but is not limited to, one, two or more, but the numbers of the first magnets 1313 and the first coils 1312 should have a one-to-one correspondence relationship. In some embodiments, the numbers of the second elastic pieces 141, the second coils 143, and the second magnets 144 in the second pressing element 140 can refer to the embodiments of the first elastic pieces 1311, the first coils 1312, and the first magnets 1313, which are not described herein again.
In some embodiments, the first pressing portion 1321 includes a first pressing end 1302, the second pressing portion 142 includes a second pressing end 1402, and both the first pressing end 1302 and the second pressing end 1402 are used for pressing the liquid lens 120. Referring to fig. 2, in some embodiments, the first pressing end 1302 and the second pressing end 1402 are both arc-shaped structures, and the first pressing end 1302 and the second pressing end 1402 constitute a pressing structure for pressing the liquid lens 120, and a projection of the pressing structure to a plane (a virtual plane, not shown) perpendicular to the first optical axis 1301 is rotationally symmetric about the first optical axis 1301. In addition to the arc-shaped structure, the first extruded end 1302 in some embodiments may also have a rectangular parallelepiped structure or a cylindrical structure (the axial direction of the cylinder is parallel to the first optical axis 1301); the second extrusion tip 1402 of some embodiments can also have a rectangular parallelepiped configuration or a cylindrical configuration (with the axis of the cylinder parallel to the first optical axis 1301).
In addition to providing one second pressing element 140, the camera module 10 of some embodiments may also include at least two second pressing elements 140, and the second pressing elements 140 can move independently from each other, so as to controllably press and mold more regions of the liquid lens 120. It is noted that the second pressing members 140 are spaced apart from each other. In some embodiments, the first pressing element 130 comprises a first pressing end 1302, the second pressing element 140 comprises a second pressing end 1402, each of the first pressing end 1302 and the second pressing end 1402 together form a pressing structure, and a projection of the pressing structure to a plane (a virtual plane, not shown) perpendicular to the first optical axis 1301 is rotationally symmetric about the first optical axis 1301. When at least two second pressing members 140 are provided, the specific structure of each second pressing member 140 may be the same, but may also be different.
Referring to fig. 3 in particular, in some embodiments, the camera module 10 includes a first pressing element 130 and two second pressing elements 140 (a partial structure is not shown), the first pressing portion 1321 includes a first pressing end 1302, the two second pressing elements 140 include a second pressing end 1402, the first pressing end 1302 and the two second pressing ends 1402 together form a pressing structure, and a projection of the pressing structure on a plane (a virtual plane, not shown) perpendicular to the first optical axis 1301 is rotationally symmetric about the first optical axis 1301. It is noted that the first pressing portion 1321 in some embodiments may also include two or more first pressing ends 1302, and the second pressing portion 142 may also include two or more second pressing ends 1402.
In addition to rotational symmetry about the first optical axis 1301, referring to fig. 4, the camera module 10 in some embodiments includes one first pressing element 130 and one second pressing element 140 (a part of the structure is not shown), and the first pressing end 1302 and the second pressing end 1402 may also be arranged in an asymmetric manner. Specifically, in some embodiments, the first and second crush ends 1302, 1402 are each arc-shaped, but the arc length of the second crush end 1402 is substantially greater than the arc length of the first crush end 1302, e.g., the arc length of the second crush end 1402 is greater than twice the arc length of the first crush end 1302. The second pressing member 140 having the above-described design can independently and more effectively press the liquid lens 120 to make the deformation of the liquid lens 120 more symmetrical.
With reference to fig. 1, the image capturing module 10 in some embodiments further includes a second lens group 170, the second lens group 170 includes at least one lens, the second lens group 170 is connected to the lens mount and disposed on the image side of the first lens group 132 along the first optical axis 1301, and the optical axes of the lenses in the second lens group 170 are collinear with the first optical axis 1301. The second lens group 170 can provide refractive power for the optical system in cooperation with the first lens group 132.
Referring to fig. 5, the image capturing module 10 in some embodiments further includes a third lens group 180, the third lens group 180 includes at least one lens, the third lens group 180 is connected to the lens holder and disposed on a side of the liquid lens 120 away from the first lens group 132 along a first optical axis 1301, and optical axes of the lenses in the second lens group 170 are collinear with the first optical axis 1301. The third lens group 180 can provide refractive power to the optical system in cooperation with the first lens group 132. Of course, the camera module 10 in some embodiments can include both the second lens group 170 and the third lens group 180.
In some embodiments, a filter 160 is disposed between the lens closest to the image sensor 150 in the camera module 10 and the image sensor 150. When the camera module 10 is used for collecting visible light, the filter 160 in the camera module 10 is an infrared cut filter 160 capable of filtering infrared light. When the camera module 10 is used for infrared shooting, the filter 160 in the camera module 10 is an infrared band pass filter 160.
Referring to fig. 6 and 7, in some embodiments, the present application further provides a camera module 10 having a reflective element 190, the reflective element 190 is connected to a lens holder (connection relation is not shown), and is disposed on a side of the liquid lens 120 away from the first pressing element 130 along the direction of the first optical axis 1301, and the reflective element 190 is used for reflecting incident light to the liquid lens 120. The adoption of reflective element 190 can make the module of making a video recording 10 have periscopic formula structure to can change the mounting means of the module of making a video recording 10 in equipment, the thickness direction of the major axis direction perpendicular to equipment that makes the module, thereby be favorable to reducing the thickness like electronic equipment such as smart mobile phone, panel computer. The reflecting element 190 may be a triangular prism, a plane mirror, or the like that can change the propagation direction of the optical path.
Referring to fig. 8, in some embodiments, the camera module 10 may not be provided with the second pressing member 140. Specifically, referring to fig. 8 and 9, in one embodiment, the first pressing portion 1321 is formed with an inner cavity 1304 communicating with opposite sides along the direction of the first optical axis 1301, and the lenses 1322 of the first lens group 132 are disposed in the inner cavity 1304, that is, the first pressing portion 1321 is disposed around the lenses 1322 of the first lens group 132. The first pressing element 130 includes a plurality of first drivers 131, and the plurality of first drivers 131 are connected to a side of the first pressing portion 1321 away from the inner cavity 1304 and are also connected to the lens holder. The plurality of first driving members 131 are arranged at intervals, and the plurality of first driving members 131 can effectively support the first pressing portion 1321 and drive the first pressing portion 1321 to move. The first pressing end 1302 of the first pressing portion 1321 has a ring-shaped structure and is disposed around the inner cavity 1304. The first pressing end 1302 can uniformly press the liquid lens 120. The deformation of the liquid lens 120 is more symmetrical, thereby being beneficial to improving the imaging quality.
The first pressing element 130 in the camera module 10 can press the liquid lens 120 along the first optical axis 1301, so that the liquid lens 120 deforms to change the refractive power of light (i.e. change the focal length of the liquid lens 120), thereby adjusting the focal length of the system. Particularly, when the first driving element 131 drives the first lens group 132 to move, the first pressing portion 1321 and the lens 1322 disposed on the first pressing portion 1321 can move synchronously along the direction of the first optical axis 1301, that is, when the first pressing portion 1321 approaches and presses the liquid lens 120, the lens 1322 in the first lens group 132 will approach the liquid lens 120, so that when the liquid lens 120 is pressed to deform and refractive power changes, the distance between the lens 1322 in the first lens group 132 and the liquid lens 120 will also decrease, and therefore the combined focal length of the liquid lens 120 and the first lens group 132 can be further adjusted, which is beneficial to enabling the optical system to have a wider zoom range. The first lens group 132 in the camera module 10 can realize the effect of adjusting the focal length with smaller displacement after the liquid lens 120 is squeezed, so that the space for moving the lens inside the camera module 10 is reduced, that is, the size of the camera module 10 in the axial direction is reduced, and the miniaturization design of the module is realized.
Referring to fig. 10, the first pressing portion 1321 in some embodiments may also include two or more first pressing ends 1302, and the first pressing ends 1302 are in an arc-shaped structure and are rotationally symmetric about the first optical axis 1301. In other embodiments, the structure of each first pressing end 1302 is not limited to an arc-shaped structure, but may also be, but not limited to, a rectangular parallelepiped structure, a cylindrical structure, etc., and each first pressing end 1302 may also be arranged without rotational symmetry about the first optical axis 1301.
Referring to fig. 8 and 11, in some embodiments, the lens holder is provided with a mounting cavity 113, the mounting cavity 113 can accommodate the first pressing element 130, the mounting cavity 113 in this embodiment is a rectangular cavity, and the mounting cavity 113 has four cavity surfaces 1131. The first pressing element 130 includes four first driving members 131, the four first driving members 131 are arranged symmetrically with respect to the first optical axis 1301, and one first driving member 131 is correspondingly arranged between each cavity surface 1131 and the first pressing portion 1321 (fig. 11 and 12 simply show the first pressing portion 1321, but the detailed structure of the first pressing portion 1321, such as the radial thickness, etc.) and each cavity surface 1131. Each first driving member 131 includes two first elastic sheets 1311 (not shown in fig. 11), a first coil 1312, and a first magnet 1313. The two first elastic pieces 1311 are disposed at intervals along the direction of the first optical axis 1301, one end of each first elastic piece 1311 is connected to the lens base, the other end of each first elastic piece 1311 is connected to the first pressing portion 1321, and the first elastic pieces 1311 can support the first lens group 132 and reset the first lens group 132. The first coil 1312 is disposed at one side of the first pressing portion 1321, and the first magnet 1313 is disposed at the lens holder corresponding to the first coil 1312. The first coil 1312 when energized can be acted on by the magnetic field of the first magnet 1313, and can drive the first pressing portion 1321 to move in the direction of the first optical axis 1301. The arrangement of the plurality of first driving members 131 can effectively support the first lens group 132, thereby preventing the first lens group 132 from shaking. In addition to the arrangement shown in fig. 11, in some embodiments, the components of the first driving element 131 can also be arranged in the manner shown in fig. 12, and in this case, one first driving element 131 is arranged between the intersections of the first pressing portion 1321 and each adjacent cavity surface 1131, so that by arranging the first driving element 131 in the diagonal region of the mounting cavity 113, the space in the lens holder can be effectively utilized, thereby facilitating the reduction of the size of the lens holder.
Referring to fig. 13, some embodiments of the present application further provide an electronic device 20, where the electronic device 20 includes a housing and a camera module 10, the camera module is disposed on the housing, and the housing may be a circuit board or a middle frame. The electronic device 20 may be, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a smart bracelet, a smart watch, a smart helmet, smart glasses, etc. Because the camera module 10 of the present application can shorten the axial dimension while possessing a large zoom range, when the electronic device 20 adopts the camera module 10, the electronic device 20 can assemble the camera module 10 with a small space, and possesses excellent zoom performance at the same time.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (11)
1. The utility model provides a module of making a video recording which characterized in that includes:
a lens base;
the liquid lens is connected with the lens base and comprises a closed bag body and liquid arranged in the closed bag body;
the first extrusion element comprises a first driving piece and a first lens group, the first driving piece is connected with the lens base and the first lens group, the first lens group comprises a first extrusion part and at least one lens arranged on the first extrusion part, the optical axis of the first lens group is a first optical axis, the liquid lens is arranged on the object side of the first lens group along the direction of the first optical axis, and the first driving piece can drive the first lens group to move along the direction of the first optical axis so that the first extrusion part extrudes the liquid lens;
the second extrusion element is connected with the lens base and is arranged at a distance from the first extrusion element, and the second extrusion element can extrude the liquid lens along the direction of the first optical axis; and
and the image sensor is arranged on one side of the first extrusion element, which is far away from the liquid lens, and is connected with the lens base.
2. The camera module according to claim 1, wherein the first driving member includes a first resilient piece, a first coil, and a first magnet, one end of the first resilient piece is connected to the lens holder, the other end of the first resilient piece is connected to the first pressing portion, the first coil is disposed on the first pressing portion, the first magnet is disposed on the lens holder, and the first coil can be acted on by a magnetic field of the first magnet when the first coil is energized, so that the first lens group can be driven to move along the direction of the first optical axis.
3. The camera module according to claim 1, wherein the second pressing element includes a second resilient piece, a second pressing portion, a second coil, and a second magnet, one end of the second resilient piece is connected to the lens holder, the other end of the second resilient piece is connected to the second pressing portion, the second coil is disposed on the second pressing portion, the second magnet is disposed on the lens holder, and the second coil can be acted on by a magnetic field of the second magnet when the camera module is powered on, so that the second pressing portion can be driven to press the liquid lens along the direction of the first optical axis.
4. The camera module of claim 1, comprising at least two of the second compression elements, wherein the second compression elements are independently movable with respect to each other, and wherein the second compression elements are spaced apart from each other.
5. The camera module according to claim 1, wherein the first pressing portion includes a first pressing end, the second pressing member includes a second pressing end, the first pressing end and the second pressing end are configured to press the liquid lens, the first pressing end and the second pressing end constitute a pressing structure that presses the liquid lens, and a projection of the pressing structure to a plane perpendicular to the first optical axis is rotationally symmetric with respect to the first optical axis.
6. The camera module of claim 1, comprising at least one of:
the camera module comprises a second lens group, the second lens group comprises at least one lens, the second lens group is connected with the lens base and is arranged at the image side of the first lens group along the direction of the first optical axis; and
the camera module comprises a third lens group, the third lens group comprises at least one lens, the third lens group is connected with the lens base and is arranged along the direction of the first optical axis, and the liquid lens is far away from one side of the first lens group.
7. The utility model provides a module of making a video recording which characterized in that includes:
a lens base;
the liquid lens is connected with the lens base and comprises a closed bag body and liquid arranged in the closed bag body;
the first extrusion element comprises a first driving piece and a first lens group, the first driving piece is connected with the lens base and the first lens group, the first lens group comprises a first extrusion part and at least one lens arranged on the first extrusion part, the optical axis of the first lens group is a first optical axis, the liquid lens is arranged on the object side of the first lens group along the direction of the first optical axis, and the first driving piece can drive the first lens group to move along the direction of the first optical axis so that the first extrusion part extrudes the liquid lens;
the reflecting element is connected with the lens base and arranged on one side of the liquid lens, which is far away from the first extrusion element, along the direction of the first optical axis, and the reflecting element is used for reflecting light rays to the liquid lens; and
and the image sensor is arranged on one side of the first extrusion element, which is far away from the liquid lens, and is connected with the lens base.
8. The camera module according to claim 7, wherein the first driving member includes a first resilient piece, a first coil, and a first magnet, one end of the first resilient piece is connected to the lens holder, the other end of the first resilient piece is connected to the first pressing portion, the first coil is disposed on the first pressing portion, the first magnet is disposed on the lens holder, and the first coil can be acted on by a magnetic field of the first magnet when the first coil is energized, so that the first lens group can be driven to move along the direction of the first optical axis.
9. The camera module according to claim 7 or 8, wherein the first pressing element includes a plurality of first driving members, the plurality of first driving members are disposed at intervals and connected to the first pressing portion, the first pressing portion defines inner cavities communicating with opposite sides along the first optical axis, and the lenses of the first lens group are disposed in the inner cavities.
10. The camera module according to claim 7 or 8, comprising a second pressing member connected to the lens holder and spaced apart from the first pressing member, the second pressing member being capable of pressing the liquid lens in the direction of the first optical axis.
11. An electronic device comprising a housing and the camera module of any one of claims 1-10, wherein the camera module is disposed on the housing.
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| CN202010212038.0A CN111308833B (en) | 2020-03-24 | 2020-03-24 | Camera module and electronic equipment |
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| CN202010212038.0A CN111308833B (en) | 2020-03-24 | 2020-03-24 | Camera module and electronic equipment |
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| CN113329159A (en) * | 2021-06-08 | 2021-08-31 | 维沃移动通信有限公司 | Camera module and electronic equipment |
| CN113395430A (en) * | 2021-06-28 | 2021-09-14 | 维沃移动通信有限公司 | Camera assembly and electronic equipment |
| WO2022143278A1 (en) * | 2020-12-28 | 2022-07-07 | 维沃移动通信有限公司 | Lens assembly and electronic device |
| WO2022151806A1 (en) * | 2021-01-14 | 2022-07-21 | 深圳市锐尔觅移动通信有限公司 | Camera assembly and electronic apparatus |
| WO2023280222A1 (en) * | 2021-07-08 | 2023-01-12 | 维沃移动通信有限公司 | Lens assembly and electronic device |
| WO2023036122A1 (en) * | 2021-09-07 | 2023-03-16 | 宁波舜宇光电信息有限公司 | Optical drive assembly, optical lens and assembly method therefor, camera module, and electronic device |
| WO2023066101A1 (en) * | 2021-10-19 | 2023-04-27 | 维沃移动通信有限公司 | Camera module and electronic device |
| WO2023173997A1 (en) * | 2022-03-16 | 2023-09-21 | 宁波舜宇光电信息有限公司 | Lens assembly and assembling method therefor, and camera module |
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