CN115997143A

CN115997143A - Zoom imaging lens, imaging device and electronic equipment

Info

Publication number: CN115997143A
Application number: CN202180002253.0A
Authority: CN
Inventors: 陈永华; 郑严; 杨宗保
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2023-04-21
Also published as: WO2023019552A1

Abstract

The present disclosure relates to a zoom imaging lens, an imaging apparatus, and an electronic device. The zoom imaging lens includes: a first lens group and at least one liquid lens component; the first lens group and the at least one liquid lens component are sequentially arranged from the object side to the image side along the optical axis of the zoom imaging lens; the position of the first lens group along the optical axis is fixed; the liquid lens component comprises a fluid and a film, wherein the fluid is wrapped by the film; the film can deform and transmit light, and the shape of the film can be changed along with external force; the focal length of the liquid lens assembly changes as the shape of the film changes; the focal length of at least one of the liquid lens assemblies is changed to achieve zoom or focus of the zoom imaging lens. The technical scheme can reduce the total length, the volume and the assembly tolerance of the zoom imaging lens and reduce the manufacturing difficulty.

Description

Zoom imaging lens, imaging device and electronic equipment

Technical Field

The present disclosure relates to a zoom imaging lens, an imaging apparatus and an electronic device, and more particularly, to a zoom imaging lens and an imaging apparatus suitable for an electronic device such as a mobile terminal.

Background

In the related art, a miniaturized zoom imaging lens mainly adopts a mode of moving and zooming by a plurality of lens groups, a moving space is required to be reserved for each lens group, and the problems of relatively long total length, large volume, large assembly tolerance and difficult manufacture of the imaging lens exist.

Disclosure of Invention

The embodiment of the disclosure provides a zoom imaging lens, an imaging device and electronic equipment.

According to a first aspect of an embodiment of the present disclosure, there is provided a zoom imaging lens including: a first lens group and at least one liquid lens component; the first lens group and at least one liquid lens component are sequentially arranged from the object side to the image side along the optical axis of the zoom imaging lens; the position of the first lens group along the optical axis is fixed;

the liquid lens assembly comprises a fluid and a film, wherein the fluid is wrapped by the film; the thin film is deformable and transparent, and the shape of the thin film can be changed along with external force; the focal length of the liquid lens assembly changes as the shape of the film changes; the focal length of at least one of all of the liquid lens assemblies is changed to achieve zoom and/or focus of the zoom imaging lens.

In one embodiment, the zoom imaging lens comprises a first liquid lens component and a second lens group, wherein the second lens group comprises a second liquid lens component;

The first lens group, the first liquid lens component and the second lens group are sequentially arranged from an object side to an image side along the optical axis;

the first liquid lens assembly comprises a first fluid and a first film, wherein the first fluid is wrapped by the first film; the first film is deformable and transparent, and the shape of the first film can be changed along with external force; a focal length of the first liquid lens assembly changes as a shape of the first film changes;

similarly, the second liquid lens assembly includes a second fluid and a second film, the second fluid being surrounded by the second film; the second film is deformable and transparent, and the shape of the second film can be changed along with external force; a focal length of the second liquid lens assembly changes as a shape of the second film changes;

at least one of the focal length of the first liquid lens assembly and the focal length of the second liquid lens assembly is changed to achieve zooming and/or focusing of the zoom imaging lens.

In one embodiment, the first lens group is fixed in position along the optical axis.

In one embodiment, the liquid lens assembly further comprises a flat substrate having a refractive power of 0; the flat substrate provides a bearing surface for the film.

In one embodiment, the zoom imaging lens further comprises a motor, the motor comprising a first mover, the motor configured to drive the first mover to move along an optical axis;

the liquid lens assembly further comprises a second rotor fixedly connected with the first rotor and capable of moving along the optical axis along with the first rotor so as to change the shape of the film.

In one embodiment, the first lens group includes at least one positive power lens, the positive power lens being a solid optic, the positive power lens having an Abbe number greater than 30.

In one embodiment, the first lens group further comprises at least one negative power lens, the negative power lens being a solid optic, the negative power lens having an abbe number of less than 40.

In one embodiment, the second lens group further includes at least one positive power lens and one negative power lens, both of which are solid lenses.

In one embodiment, a distance between a surface vertex of the object side of the first lens assembly and an image plane on the optical axis is TTL, and an effective image height is IH, where the TTL and the IH satisfy the following relation:

TTL/IH<30。

In one embodiment, the abbe number of the fluid is greater than 40.

In one embodiment, the zoom imaging lens further comprises an aperture, the aperture being located in the second lens group.

In one embodiment, the aperture value of the aperture is F1.5-F4.5.

In one embodiment, the zoom imaging lens further comprises a beam steering element, the beam steering element being located on an object side of the first lens group;

the beam steering element is configured such that light incident in a first direction, which is different from a second direction, is emitted to the first lens group in the second direction, and the optical axis is parallel to the second direction.

In one embodiment, the zoom imaging lens further comprises a beam steering element located between the first lens group and the first liquid component;

the light beam steering element is configured to emit light incident along a first direction to the first liquid component along a second direction, the first direction being different from the second direction, the optical axis including a first sub-axis and a second sub-axis, the first sub-axis being parallel to the first direction, the second sub-axis being parallel to the second direction, lenses in the first lens group being arranged along the first sub-axis, and the first liquid component and the second lens group being arranged along the second sub-axis.

In one embodiment, the zoom imaging lens further comprises a beam steering element located between the first liquid component and the second lens group;

the beam steering element is configured to eject light incident in a first direction to the second lens group in a second direction, the first direction being different from the second direction, the optical axis including a first sub-axis parallel to the first direction and a second sub-axis parallel to the second direction, the first lens group and the first liquid component being arranged along the first sub-axis, and lenses in the second lens group being arranged along the second sub-axis.

According to a second aspect of the embodiments of the present disclosure, there is provided an imaging device, including an image sensor and the zoom imaging lens described above, where the image sensor is located on an image plane of the zoom imaging lens.

According to a third aspect of embodiments of the present disclosure, there is provided an electronic apparatus including an apparatus body and the above-described imaging device, the imaging device being mounted on the apparatus body.

In one embodiment, the electronic device further includes a control module configured to control a focal length of each of the liquid lens assemblies according to a corresponding relation between a control signal and a preset, wherein the corresponding relation includes a corresponding relation between a focal length of the zoom imaging lens, an object distance, and control information of the focal length of each of the liquid lens assemblies, and the control signal includes the focal length of the zoom imaging lens.

In one embodiment, the electronic device further comprises a temperature sensor configured to obtain temperature information for each of the liquid lens assemblies;

for each liquid lens component, the corresponding relation further comprises a corresponding relation between temperature information of the liquid lens component and control information of a focal length of the liquid lens component when the liquid lens component is optimally focused at the current temperature.

In one embodiment, when the zoom imaging lens further includes a beam steering element, the first direction is perpendicular to the second direction;

when the short side of the electronic equipment is parallel to the second direction, the long side of the electronic equipment is parallel to the first direction, or the thickness direction of the electronic equipment is the first direction;

when the long side of the electronic equipment is parallel to the second direction, the short side of the electronic equipment is parallel to the first direction, or the thickness direction of the electronic equipment is the first direction.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic structural view of an image forming apparatus according to an exemplary embodiment.

Fig. 2 is an equivalent schematic diagram of the optical path of fig. 1.

Fig. 3 is a schematic structural view of a first liquid lens assembly according to an exemplary embodiment.

Fig. 4 is a schematic structural view of another first liquid lens assembly according to an exemplary embodiment.

Fig. 5 is a graph of spherical aberration, astigmatic field curvature, and distortion at the wide-angle end of an imaging lens according to an example embodiment.

Fig. 6 is a graph of spherical aberration, astigmatic field curvature, and distortion at a telephoto end of an imaging lens according to an example embodiment.

Fig. 7 is a block diagram of an electronic device, according to an example embodiment.

Fig. 8 is a schematic diagram of an electronic device according to an exemplary embodiment.

Fig. 9 is a schematic cross-sectional view of an electronic device, shown according to an example embodiment.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.

Fig. 1 is a schematic structural view of an image forming apparatus according to an exemplary embodiment. Fig. 2 is an optical path equivalent schematic diagram of the imaging device shown in fig. 1. As shown in fig. 1 and 2, the imaging device includes a zoom imaging lens 100 and an image sensor 18. The image sensor 18 is located at the image plane 181 of the zoom imaging lens 100. The image sensor 18 receives light incident through the zoom imaging lens 100, and collects image information.

As shown in fig. 1 and 2, the imaging lens 100 includes a first lens assembly 11, a second lens assembly 12, a first liquid lens assembly 13, an aperture 15, a beam steering element 16 and a filter 17.

As shown in fig. 2, in the present embodiment, the first lens group 11, the first liquid lens assembly 13, the second lens group 12, and the optical filter 17 are sequentially arranged from the object side to the image side along the optical axis 19 of the variable focal imaging lens 100. An aperture 15 is located in the second lens group 12.

In the present embodiment, the position of the first lens group 11 along the optical axis 19 is fixed, and the position of the first lens group 11 remains unchanged during zooming or focusing of the zoom imaging lens 100.

As shown in fig. 2, in the present embodiment, the first lens group 11 may include a first lens 111 and a second lens 112. The first lens element 111 and the second lens element 112 are sequentially arranged from an object side to an image side. The first lens 111 is a biconvex lens, and is a negative refractive power lens. The first surface 1111 of the first lens 111 facing the object side is convex, and the second surface 1112 facing the image side is concave. The second lens 112 is a positive power lens. The third surface 1121 of the second lens 112 facing the object side is convex, and the fourth surface 1122 facing the image side is concave. In general, the first lens group 11 has positive refractive power.

In the present embodiment, the abbe number of the second lens 112 is greater than 30. Preferably, the abbe number of the second lens 112 is greater than 40. Meanwhile, the second lens 112 can be made of a material with a higher refractive index, so that the curvature radius of the curved surface can be increased, and the spherical aberration can be reduced.

In the present embodiment, the abbe number of the first lens 111 is less than 40. Preferably, the Abbe number of the first lens 111 is less than 35. Preferably, the abbe number of the first lens 111 is less than 30.

In the present embodiment, the first lens 111 and the second lens 112 cooperate to facilitate reducing spherical aberration and chromatic aberration generated by the first lens group 11.

In the present embodiment, the first lens 111 and the second lens 112 are solid lenses. The material of the first lens 111 is glass, and the material of the second lens 112 is glass. Of course, in other embodiments, the material of the first lens 111 and the material of the second lens 112 can be plastic, crystalline or semiconductor material structural components.

In the present embodiment, the first lens 111 and the second lens 112 are aspheric lenses. The curve equation of the aspherical surfaces of the first lens 111 and the second lens 112 is as follows:

in the formula (1), C is the reciprocal of the radius of curvature of each lens, r is the perpendicular distance between a certain point on the aspherical surface and the optical axis 19, K is a conic constant, and C2, C4, C6, C8, C10, C12, and C14 are aspherical coefficients. X is the distance in the optical axis direction from a point on the aspherical lens surface at a distance r from the optical axis to the vertex of the aspherical surface.

In this embodiment, as shown in fig. 3 and 4, the first liquid lens assembly 13 may include a first flat substrate 131, a first fluid 132, a first film 133, a second mover 134, a first annular structure 135 and a second annular structure 136. The first fluid 132 is surrounded by a first membrane 133.

In the present embodiment, the first fluid 132, the first film 133, the second mover 134 and the first annular structure 135 are located on the image side of the first flat substrate 131. In other applications, the first fluid 132, the first film 133, the second mover 134, and the first annular structure 135 may also be located on the object side of the first flat substrate 131.

In this embodiment, the material of the first flat substrate 131 is a transparent solid material, for example, the first flat substrate 131 may be a glass flat plate. The refractive power of the first flat substrate 131 is 0.

In the present embodiment, the first annular structural member 135 is fixed on the image side of the first flat substrate 131, and the material of the first annular structural member 135 may be a metal material, but is not limited thereto. The first film 133 is transparent and deformable, and is made of elastic transparent material. The shape of the first film 133 may be changed according to the external force received. The external force can be pushing force or pulling force. The first film 133 is fixed in the first annular structural member 135, and the first flat substrate 131 provides a bearing surface for the first film 133. The side of the first film 133 remote from the first flat substrate 131 is in contact with air. The second mover 134 is fixed to a side of the first film 133 remote from the first flat substrate 131. The first film 133 undergoes a curvature change by the external force of the second mover 134. The first film 133 further includes a first effective light-transmitting region P1, and the focal length of the first liquid lens assembly 13 is changed when the radius of curvature of the first effective light-transmitting region P1 is changed. Wherein the movement direction of the second mover 134 is opposite to the movement direction of the center of the first film 133. The second annular structural member 136 is located at the object side of the substrate 131, and the projection of the inner wall of the second annular structural member 136 on the first flat substrate 131 coincides with the projection of the edge of the first effective light-transmitting region P1 on the first flat substrate 131. The second annular structure 136 is opaque and the material may be metal. The second annular structure 136 is configured to define a first effective light-transmitting region P1 of the first film 133.

Note that the structure of the first liquid lens assembly 13 is not limited to the above. In one possible implementation, when the first liquid lens assembly 13 has a negative or positive focal length, a portion of the film is located in the accommodation space, and when the first liquid lens assembly 13 is a planar lens, the entirety of the film is located in the accommodation space. With respect to the second mover 134, it is also possible to provide a force in the opposite direction by changing the position of the second mover 134 so that the moving direction of the second mover 134 is the same as the moving direction of the center of the first film 133.

In this embodiment, as shown in fig. 3 and 4, the zoom imaging lens 100 further includes a motor 21, the motor 21 includes a first mover 211 and a stator 212, the first mover 211 is movably connected to the stator 212, and the motor 21 is configured to drive the first mover 211 to move along the optical axis 19.

In the present embodiment, as shown in fig. 3 and 4, the second mover 134 of the first liquid lens assembly 13 is fixedly connected with the first mover 211 of the motor 21, for example, the second mover 134 and the first mover 211 may be bonded and connected, but not limited thereto. The second mover 134 may move along the optical axis 19 with the first mover 211 to change the shape of the first effective light transmitting region P1.

In this embodiment, the first mover 211 may be a ring, the ring is a hollow structure, and the hollow portion of the ring may have a circular cross section. The second mover 134 may be a circular tube. The round tube is of a hollow structure, and the section of the hollow part of the round tube can be round. The thickness of the side wall of the circular tube is larger than that of the side wall of the circular ring. The side round surface of the circular ring can be connected with one end surface of the circular tube in a gluing way. The connection manner of the second mover 134 and the first mover 211 is not limited to that in the present embodiment.

As shown in fig. 4, when the first mover 211 of the motor 21 moves toward the object side along the optical axis 19, the first film 133 may be pressed, and the first fluid 132 may be concentrated toward the center direction, so that the first effective light-transmitting region P1 may be convex toward the object side, forming a convex surface, and the center of the surface of the film contacting the air may be changed toward the object side. In this case, the first liquid lens assembly 13 has a positive focal length.

When the first mover 211 of the motor 21 moves toward the image side along the optical axis 19, the first film 133 may be stretched, and the first fluid 132 may be concentrated in the edge direction, so that the first effective light-transmitting region P1 may be recessed toward the image side to form a concave surface, and the center of the surface of the film contacting the air may be changed toward the image side. In this case, the first liquid lens assembly 13 has a negative focal length.

It should be noted that, in the present embodiment, the first mover 211 is directly connected to the second mover 134, and in other embodiments, the first mover 211 may also be indirectly connected to the second mover 134, depending on the structure of the first liquid lens assembly 13.

As described above, the zoom imaging lens 100 achieves a change in magnification by adjusting the focal length of the liquid lens assembly, thereby achieving a change in overall focal length. In the tele lens, the sensitivity of the surface type error of the lenses in the first lens group 11 is high, and the liquid lens assembly is difficult to achieve. In this embodiment, by disposing the first lens group 11 with positive refractive power at the object side of the first liquid component 13, the requirement on the liquid lens component can be reduced, and the yield can be improved. Meanwhile, the second liquid lens assembly 14 is configured at the image side of the first lens assembly 11, so that the focal length variation range of the first liquid lens assembly 13 can be reduced under the same zoom multiple, and the load of the motor 21 can be further reduced.

In this embodiment, the abbe number of the first fluid 132 is greater than 40, and the material of the first fluid 132 is a low dispersion material, so as to reduce the chromatic aberration variation caused by the focal length variation of the first liquid lens assembly 13.

In this embodiment, as shown in fig. 1, the fifth surface 1311 of the first liquid lens assembly 13 facing the object side is a plane, the sixth surface 1331 of the first thin film 133 near the object side is a spherical surface, the seventh surface 1332 of the first thin film 133 near the image side is a spherical surface, the radius of curvature of the sixth surface 1331 is infinity, and the sixth surface 1331 is approximately a plane. As the shape of the seventh surface 1332 changes, the focal length of the first liquid lens assembly 13 changes. In the present embodiment, the volume of the first fluid 132 is unchanged, and the interval between the sixth surface 1331 and the seventh surface 1332 changes during the change of the shape of the seventh surface 1332. When the first liquid lens assembly 13 has a positive focal length, as the radius of curvature of the seventh surface 1332 decreases, the on-axis center thickness of the first fluid 132 increases and the air space adjacent thereto decreases. Likewise, when the first liquid lens assembly 13 has a negative focal length, as the radius of curvature of the seventh surface 1332 decreases, the on-axis center thickness of the first fluid 132 decreases and the air space adjacent thereto increases.

During zooming or focusing of the zoom imaging lens 100, the focal length of the first liquid lens assembly 13 may or may not be changed. The position of the first liquid lens assembly 13 may be unchanged. In this way, there is no need to reserve a moving space along the optical axis for the first liquid lens assembly 13, the total length and volume of the zoom imaging lens 100 can be reduced, and the structure of the zoom imaging lens 100 can be simplified. At the same time, the number of movable lens groups is reduced, so that the assembly tolerance can be reduced, and the manufacturing difficulty is reduced.

In the present embodiment, the first fluid 132 is subjected to an external force, and the focal length of the first liquid lens assembly 13 can be changed by changing the shape of the first effective light-transmitting region P1. When the zoom imaging lens 100 focuses between infinity and close distance, the position of the first lens group 11 may be kept unchanged, and focusing may be further achieved by changing the focal length of the first liquid lens assembly 13.

In this embodiment, the abbe number of the first fluid 132 is greater than 40. The material of the first fluid 132 is a low dispersion material, which can reduce chromatic aberration variation caused by focal length variation of the first liquid lens assembly 13.

In this embodiment, as shown in fig. 1, the beam steering element 16 is a steering prism, and can change the propagation direction of the incident light by 90 degrees. The beam steering element 16 is located between the first liquid component 13 and the second lens group 12. The beam steering element 16 is configured to eject light incident along a first direction X to the second lens group 12 along a second direction Y, the first direction X being perpendicular to the second direction Y, the optical axis 19 including a first sub-axis 191 and a second sub-axis 192, the first sub-axis 191 being parallel to the first direction X, the second sub-axis 192 being parallel to the second direction Y, the first lens group 11 being aligned with the first liquid component 13 along the first sub-axis 191, and lenses in the second lens group 12 being aligned along the second sub-axis 192. In other embodiments, beam steering element 16 may be a mirror. The use of the beam steering element 16 in the zoom imaging lens 100 can reduce the size of the zoom imaging lens 100 in the first direction X and the second direction Y, and can adapt the zoom imaging lens to electronic devices with different size requirements.

Of course, in other embodiments, the beam steering element 16 may be located at other positions in the zoom imaging lens, for example, the beam steering element 16 may be located on the object side of the first lens group 11. The beam steering element 16 is configured such that light incident in a first direction X, which is different from the second direction Y, is emitted to the first lens group 11 in a second direction Y, and the optical axis 19 is parallel to the second direction Y. For another example, the beam steering element 16 is located between the first lens group 11 and the first liquid component 13. The beam steering element 16 is configured such that light incident along a first direction X is emitted to the first liquid component 13 along a second direction Y, the first direction X is perpendicular to the second direction Y, the optical axis 19 includes a first sub-axis 191 and a second sub-axis 192, the first sub-axis 191 is parallel to the first direction X, the second sub-axis 192 is parallel to the second direction Y, lenses in the first lens group 11 are arranged along the first sub-axis 191, and the first liquid component 13 and the second lens group 12 are arranged along the second sub-axis 192.

In the present embodiment, as shown in fig. 2, the eighth surface 161 of the beam steering element 16 facing the object side is a plane, and the ninth surface 162 facing the image side is a plane.

In the present embodiment, as shown in fig. 1 and 2, the second lens group 12 includes a third lens 121, a fourth lens 122, a fifth lens 123, a second liquid lens assembly 14, a sixth lens 124, a seventh lens 125 and an eighth lens 126. The third lens element 121, the fourth lens element 122, the fifth lens element 123, the second liquid lens element 14, the sixth lens element 124, the seventh lens element 125 and the eighth lens element 126 are arranged in order from the object side to the image side along the optical axis 19.

In this embodiment, the total refractive power of the first lens group 11 is positive, and the incident light is focused and then enters the first liquid component 13. The total refractive power of the first liquid component 13 changes from negative to positive, the refractive power of the second liquid component 14 changes from positive to negative, and the refractive powers of the first liquid component and the second liquid component change in a matching way, so that the magnification is adjusted, and the change of the total focal length of the zoom imaging lens 100 is realized. The first lens group 11 with positive refractive power is disposed at the object side of the first liquid component 13, which is beneficial to reduce the required refractive power variation range.

In the present embodiment, as shown in fig. 2, the third lens 121 is a positive refractive power lens. The third lens 121 is an aspherical lens. The tenth surface 1211 of the third lens 121 facing the object side is concave, and the eleventh surface 1212 facing the image side is convex.

In the present embodiment, as shown in fig. 2, the diaphragm 15 is located between the third lens 121 and the fourth lens 122. The twelfth surface of the diaphragm 15 is a plane. The aperture 15 functions as a field stop. The aperture 15 may be a variable aperture or a fixed aperture.

In the present embodiment, the diameter of the diaphragm 15 is determined according to the size requirement of the module and the specification such as the focal length. The recommended range of the aperture F value of the zoom imaging lens is between F1.5 and F4.5. Where F-number = focal length of lens/effective aperture diameter of lens.

In other embodiments, the aperture 15 may be located at other positions in the second lens group 12, for example, the aperture 15 may be located at a side of the third lens element 121 facing the object side, a side of the fifth lens element 123 facing the image side, or a side of the sixth lens element 124 facing the object side, but is not limited thereto.

In the present embodiment, as shown in fig. 2, the fourth lens 122 is a positive refractive power lens. The thirteenth surface 1221 of the fourth lens 122 facing the object side is convex, and the fourteenth surface 1222 facing the image side is convex.

In the present embodiment, as shown in fig. 2, the fifth lens 123 is a negative refractive power lens. The fourteenth surface 1222 of the fifth lens 123 facing the object side is concave, and the fifteenth surface 1231 facing the image side is concave. The fourteenth surface 1222 is a surface of the fourth lens 122 and a surface of the fifth lens 123.

In the present embodiment, the structure of the second liquid lens assembly 14 is similar to that of the first liquid lens assembly 13, and the focus adjustment method is not described in detail herein, and the structure of the second liquid lens assembly 14 and the focus adjustment method are briefly described below.

As shown in fig. 2, in the present embodiment, the second liquid lens assembly 14 includes a second flat substrate 141, a second fluid 142, and a second film 143. The second fluid 142 and the second thin film 143 are located on the image side of the second flat substrate 141. The material of the second plate substrate 141 is a transparent solid material, for example, the second plate substrate 141 may be a glass plate. The refractive power of the second flat substrate 141 is 0. The second fluid 142 is surrounded by a second film 143. The second film 143 is transparent and deformable, and is made of elastic transparent material. The shape of the second thin film 143 may vary depending on the external force received. The second flat substrate 141 provides a bearing surface for the second film 143. The second film 143 undergoes curvature change under the influence of external force. The second film 143 further includes a second effective light passing region, and the focal length of the second liquid lens assembly 14 is changed when the radius of curvature of the second effective light passing region is changed.

When the zoom imaging lens 100 performs zooming, the focal length of the first liquid lens component 13 changes from negative to positive, and the focal length of the second liquid lens component 14 changes from positive to negative, so that the magnification is changed by matching with each other, and the total focal length of the zoom imaging lens 100 is changed. It should be noted that, in other embodiments, when the zoom imaging lens 100 performs zooming, the focal length of the first liquid lens component 13 changes, or the focal length of the second liquid lens component 14 changes.

When the zoom imaging lens 100 focuses, at least one of the focal length of the first liquid lens component 13 and the focal length of the second liquid lens component 14 changes. For example, when the zoom imaging lens 100 performs focusing, the focal length of the first liquid lens assembly 13 changes, or the focal length of the second liquid lens assembly 14 changes, or both the focal length of the first liquid lens assembly 13 and the focal length of the second liquid lens assembly 14 change. The position of the second liquid lens assembly 14 may be unchanged while the zoom imaging lens 100 is zoomed or focused. In this way, there is no need to reserve a moving space along the optical axis for the second liquid lens assembly 14, the total length and volume of the zoom imaging lens 100 can be reduced, and the structure of the zoom imaging lens 100 can be simplified. At the same time, the number of movable lens groups is reduced, so that the assembly tolerance can be reduced, and the manufacturing difficulty is reduced.

In this embodiment, the abbe number of second fluid 142 is greater than 40. The material of the second fluid 142 is a low dispersion material, which can reduce chromatic aberration changes caused by focal length changes of the second liquid lens assembly 14.

In this embodiment, as shown in fig. 2, the sixteenth surface 1411 of the second liquid lens assembly 14 facing the object side is a plane, the seventeenth surface 1431 of the second thin film 143 near the object side is a spherical surface, the eighteenth surface 1432 of the second thin film 143 near the image side is a spherical surface, and the radius of curvature of the seventeenth surface 1431 is infinity and is approximately a plane.

In the present embodiment, as shown in fig. 2, the sixth lens 124 has a positive focal length and is a positive power lens. The nineteenth surface 1241 of the sixth lens 124 facing the object side is aspheric, and the twentieth surface 1242 facing the image side is concave and spherical.

In the present embodiment, as shown in fig. 2, the seventh lens 125 has a negative focal length, and is a negative refractive power lens. The twenty-first surface 1251 of the seventh lens 125 facing the object side is concave, aspherical, and the twenty-second surface 1252 facing the image side is convex.

In the present embodiment, as shown in fig. 2, the eighth lens 126 has a negative focal length and is a negative refractive power lens. The twenty-third surface 1261 of the eighth lens 126 facing the object side is concave and has a inflection point, in other words, the center of the twenty-third surface 1261 is convex and the edges are concave. The twenty-fourth surface 1262 of the eighth lens 126 facing the image side is concave. Twenty-third surface 1261 and twenty-fourth surface 1262 are each aspheric.

In the present embodiment, the third lens 121, the fourth lens 122, the fifth lens 123, the sixth lens 124, the seventh lens 125 and the eighth lens 126 are solid lenses. The material of the solid lens may be glass, plastic, crystalline or semiconductor material structural components.

In the present embodiment, in the zoom imaging lens 100, a part of the lenses is made of glass, the other part is made of plastic, and the other part is made of aspherical, so that aberration can be suppressed to the maximum extent. The curve equation of the aspherical surface of the aspherical lens is shown in the above relation (1). In the present embodiment, the material of the second lens 112, the material of the fourth lens 122, the material of the fifth lens 123 and the material of the sixth lens 124 are all glass, and the materials of the remaining lenses can be plastics, but the second lens 112, the third lens 121, the sixth lens 124, the seventh lens 125 and the eighth lens 126 are aspheric lenses.

In this embodiment, the filter 17 is used to filter out infrared light and ultraviolet light, so as to prevent the infrared light and ultraviolet light from interfering with the imaging of the image sensor 18.

In this embodiment, the distance between the surface vertex of the object side of the first lens assembly 11 and the image plane 181 on the optical axis 19 is TTL, the effective image height is IH, and the ratio of TTL to IH satisfies the following relationship:

TTL/IH<30 (2)

Wherein the effective image height is half the total diagonal length of the effective imaging area of the image sensor 18.

When the TTL and the IH satisfy the relation (2), the total length of the zoom imaging lens 100 can be limited in a suitable range, which is beneficial to using the zoom imaging lens 100 in portable electronic devices and satisfies the miniaturization requirement. Preferably, the ratio may be less than 20, further limiting the overall length of the zoom imaging lens 100. Further, the ratio may be less than 10, so that the zoom imaging lens 100 achieves a compact external size.

In this embodiment, the optical structure data of the imaging device is shown in table 1. The aspherical data are shown in table 2, in which K is a conic constant in the aspherical curve equation, and C2 to C14 are aspherical coefficients of the 2 nd, 4 th, 6 th, 8 th, 10 th, 12 th and 14 th orders of the respective surfaces. The corresponding position information at the time of infinity focusing (may be abbreviated as "infinity focusing") may be shown in table 3, and the corresponding position information at the time of 580mm distance focusing may be shown in table 4. Wherein, 580mm distance focusing is close-range focusing.

In table 1, surface is the ordinal number of a surface arranged in order from the object side to the image side, for example, surface 1 is the first surface 1111, surface 2 is the second surface 1112, surface 3 is the third surface 1121, surface 4 is the fourth surface 1122, surface 5 is the fifth surface 1311, surface 6 is the sixth surface 1331, surface 7 is the seventh surface 1332, surface 8 is the eighth surface 161, surface 9 is the ninth surface 162, surface 10 is the tenth surface 1211, surface 11 is the eleventh surface 1212, surface 15 is the aperture 15, surface 13 is the thirteenth surface 1221, surface 14 is the fourteenth surface 1222, surface 15 is the fifteenth surface 1231, surface 16 is the sixteenth surface 1411, surface 17 is the seventeenth surface 1431, surface 18 is the eighteenth surface 1432, surface 19 is the nineteenth surface 1241, surface 20 is the twentieth surface 1242, surface 21 is the twenty first surface 1251, surface 22 is the twenty second surface 1252, surface 23 is the twenty third surface 1261, surface 24 is the twenty fourth surface 1262, surface 25 is the twenty fifth surface 171 facing the object side of the filter 17, surface 26 is the twenty sixth surface 172 facing the image side of the filter 17, and surface 27 is the image plane (image). OBJ is the object surface in focus.

TABLE 1

In table 1, TYPE is the surface profile of the lens, ASP represents an aspherical surface, and SPH represents a spherical surface. R is the radius of curvature and inf is infinite. r1 is the radius of curvature of seventh surface 1332 and r2 is the radius of curvature of eighteenth surface 1432. thi represents the spacing between adjacent surfaces. Thi is the thickness of the lens when two adjacent surfaces belong to the same lens, and is the air gap when two adjacent surfaces do not belong to the same lens. * Indicating that there is a slight change in the thickness of the center. For example, there is a slight variation in the center thickness of the first flat substrate 131, the center thickness of the first fluid 132, the center thickness of the second flat substrate 141, and the center thickness of the second fluid 142. D0 The (object distance) is the distance from the object plane of focus to the vertex of the first lens 111 facing the object side.

In Table 1, nd is a refractive index to d-line, and d-line is light having a wavelength of 587.6 nm. Vd is Abbe number, EFL is focal length in millimeters. "prism optical path equivalent" refers to the optical path equivalent of the beam steering element 16.

TABLE 2

surface	K	C2	C4	C6	C8	C10	C12	C14
1	0.00000E+00	1.53998E-01	1.31850E-03	-7.56954E-05	2.28415E-06
2	0.00000E+00	-2.22129E-02	-8.97422E-05	-2.44499E-04	2.87488E-06
3	0.00000E+00	0.00000E+00	4.78953E-04	-1.36709E-04	6.49529E-06	-1.52744E-07
4	0.00000E+00	0.00000E+00	-3.68387E-04	-2.31320E-05	2.94480E-06	-4.02586E-07
10	0.00000E+00	-1.44386E-01	-1.38662E-02	-6.93947E-04	1.56379E-05
12	0.00000E+00	0.00000E+00	-1.12233E-02	-3.92316E-04	5.02167E-05	3.77891E-07	-4.56321E-07
20	0.00000E+00	0.00000E+00	-1.18417E-03	-1.05358E-04	0.00000E+00	0.00000E+00	0.00000E+00
22	0.00000E+00	0.00000E+00	-5.74078E-03	1.95997E-03	6.76383E-05	-5.71923E-05	-1.30561E-06	3.80550E-07
23	0.00000E+00	0.00000E+00	-2.50304E-03	3.62147E-03	2.06934E-04	-2.74414E-05	-3.62485E-08	-3.79046E-11
24	0.00000E+00	0.00000E+00	-5.06068E-02	1.11533E-02	-5.52381E-04	-8.22790E-05	2.03513E-06	4.12801E-07
25	0.00000E+00	0.00000E+00	-5.18795E-02	1.09553E-02	-1.39767E-03	8.06260E-05	-3.83330E-06	3.70211E-08

TABLE 3 Table 3

TABLE 4 Table 4

In table 3, Z1, Z2, and Z3 are three states of minimum, intermediate, and maximum focal lengths of the zoom imaging lens 100 at the time of focusing at infinity, i.e., wide-angle, intermediate, and telephoto states, respectively. Wherein the median value is a value between the minimum and maximum values, not necessarily the median value. F is the focal length of the zoom imaging lens 100, fno is the aperture F value, f_ll1 is the focal length of the first liquid lens assembly 13, and f_ll2 is the focal length of the second liquid lens assembly 14. The data shown in table 3 can be obtained by infinity initial position correction.

Table 4 is information of the focal length of the zoom imaging lens 100, the focal length of the first liquid lens assembly 13, the focal length of the second liquid lens assembly 14, the F-number, the radius of curvature of the seventh surface 1332, and the radius of curvature of the eighteenth surface 1432 corresponding to the three states Z1, Z2, and Z3 when focusing at a distance of 580 mm.

In the present embodiment, the continuous zooming from Z1 to Z3 can be achieved by controlling the combination of the focal length of the first liquid lens component 13 and the focal length of the second liquid lens component 14, and the focusing from infinity to close distance can also be achieved by controlling the combination of the focal length of the first liquid lens component 13 and the focal length of the second liquid lens component 14.

In the present embodiment, a spherical aberration, field curvature, and astigmatism (ASTIGMATIC FIELD CURVES) and DISTORTION (DISTORTION) graph at the wide-angle end of the zoom imaging lens 100 is shown in fig. 5. In the spherical aberration curve of fig. 5, the horizontal axis represents defocus (FOCUS) offset in millimeters (MILLIMETERS), and the vertical axis represents longitudinal spherical aberration (LONGITUDINAL SPHERICAL aber.) in millimeters. In the field curves and pixel curves of fig. 5, the horizontal axis represents defocus in mm, and the vertical axis represents image height (IMG HT) in mm. S and T represent sagittal and meridional directions, respectively. Both contain 470nm, 587.6nm and 656nm profiles centered around 587.6 nm. In the distortion distribution curve of fig. 5, the horizontal axis represents distortion rate, the vertical axis represents image height, and the units are millimeters.

In the present embodiment, the spherical aberration, curvature of field, and astigmatism (ASTIGMATIC FIELD CURVES) and DISTORTION (DISTORTION) CURVES of the telephoto end of the imaging lens 100 are shown in fig. 6.

In this embodiment, since the zoom imaging lens includes at least one liquid lens assembly, each liquid lens assembly includes a fluid and a film, the fluid is wrapped by the film, the film is deformable and transparent, the shape change of the film can be realized by the action of external force, and the focal length of the liquid lens assembly is changed when the shape of the film is changed, in this way, in the process of realizing zooming or focusing of the zoom imaging lens, the lens group does not need to be moved along the optical axis by changing the shape of the film in at least one liquid lens assembly in all the liquid lens assemblies, therefore, a large movement stroke space does not need to be reserved for the lens group, and the total length and the volume of the zoom imaging lens can be reduced. At the same time, the number of movable lens groups is reduced, the assembly tolerance is also reduced, and the manufacturing difficulty is reduced. In addition, as the liquid lens component in the zoom imaging lens is not positioned in the first lens group closest to the shot object, performance variation caused by tolerance of the liquid lens component can be reduced, the mass production yield is improved, the zoom range of the liquid lens component is reduced, and further, the load for driving the liquid lens component can be reduced.

The embodiment of the present disclosure further provides a zoom imaging lens 100, where the zoom imaging lens 100 is the zoom imaging lens 100 described in any of the embodiments above.

An exemplary embodiment of the present disclosure also provides an electronic device. The electronic equipment comprises an equipment body and the imaging device of any embodiment, wherein the imaging device is assembled on the equipment body.

In this embodiment, the electronic device may be a miniaturized electronic device such as a digital camera, a mobile phone, a drone, a monitor, or the like.

In this embodiment, as shown in fig. 7, the electronic apparatus 700 may further include a control module 704, a storage module 706, and a transmission module 708 in addition to the imaging device 702.

In the present embodiment, the control module 704 is configured to control the zooming and focusing movements of the zoom imaging lens 100, for example, the focal length of the zoom imaging lens 100 can be controlled by controlling the focal length of the first liquid lens component 13 and the focal length of the second liquid lens component 14.

In a specific implementation manner, in this embodiment, the control module 704 is configured to control the focal length of each liquid lens assembly according to a corresponding relation between a control signal and a preset corresponding relation, so as to implement zooming or focusing, where the corresponding relation includes a corresponding relation between the focal length of the zoom imaging lens 100, an object distance (D0) and control information of the focal length of each liquid lens assembly, and the control signal may be generated according to a control instruction input by a user, and includes information of the focal length of the zoom imaging lens. For example, the correspondence may include a correspondence between a focal length of the zoom imaging lens 100, an object distance (D0), control information of the focal length of the first liquid lens assembly 13, and control information of the focal length of the second liquid lens assembly 14, the control information of the focal length of the first liquid lens assembly 13 may be r1, and the control information of the focal length of the second liquid lens assembly 14 may be r2.

In this embodiment, the preset correspondence may be a correspondence among a plurality of focal length samples, the control information of the focal length of the first liquid lens assembly 13, and the control information of the focal length of the second liquid lens assembly 14, and the form of the preset correspondence may be as shown in table 3 and table 4. For example, table 3 includes three focal points with f of 7.76, 10.17, and 14.50, respectively. In other embodiments, the preset correspondence may be a linear or multiple fitting function.

In the present embodiment, the control module 704 may further include a temperature sensor and a distance sensor. The temperature sensor is configured to acquire first temperature information of the first liquid lens assembly 13 and second temperature information of the second liquid lens assembly 14, and the distance sensor is configured to detect an object distance. The distance sensor may be a TOF (Time of flight) sensor or an infrared distance sensor, but is not limited thereto.

In this embodiment, for each liquid lens component, the above-mentioned correspondence relationship further includes a correspondence relationship between temperature information of the liquid lens component and control information of a focal length of the liquid lens component when the liquid lens component is in best focus at the current temperature. For example, the correspondence relationship further includes a correspondence relationship between the first temperature information of the first liquid lens assembly 13 and the control information of the focal length of the first liquid lens assembly 13 at the time of the best focusing at the current temperature, and a correspondence relationship between the second temperature information of the second liquid lens assembly 14 and the control information of the focal length of the second liquid lens assembly 14 at the time of the best focusing at the current temperature. For example, the above-mentioned correspondence relationship may include a correspondence relationship between the first temperature information of 20 degrees celsius and control information of the focal length of the first liquid lens assembly 13 at the time of best focusing at 20 degrees celsius.

In this embodiment, the control module 704 is further configured to control the focal length of the first liquid lens component 13 and the focal length of the second liquid lens component 14 according to the control signal, the acquired first temperature information, the acquired second temperature information, the detected object distance, and the correspondence relationship, so as to achieve auxiliary zooming and focusing. In this embodiment, the back focus change and the focus drift caused by the temperature change can be compensated, so that the usable temperature range of the electronic device is enlarged.

It should be noted that the temperature sensor and the distance sensor may be an integral part of the control module 704, or may be a device independent of the control module 704.

In this embodiment, there may be two temperature sensors, one for acquiring the first temperature information of the first liquid lens assembly 13 and the other for acquiring the second temperature information of the second liquid lens assembly 14. Each temperature sensor can comprise a detection part and an information processing part, wherein the detection part is positioned in the liquid lens assembly, the information processing part is positioned outside the liquid lens assembly, and the detection part is electrically connected with the information processing part. The detection part is matched with the information processing part and used for sensing the temperature of the liquid lens component. In other embodiments, the temperature sensor may include a first detecting portion, a second detecting portion and an information processing portion, where the first detecting portion is located in the first liquid lens assembly 13, the second detecting portion is located in the second liquid lens assembly 14, and the first detecting portion and the second detecting portion are respectively electrically connected to the information processing portion. The first detecting portion cooperates with the information processing portion for sensing the temperature of the first liquid lens assembly 13, and the second detecting portion cooperates with the information processing portion for sensing the temperature of the second liquid lens assembly 14.

In this embodiment, the storage module 706 is configured to store image information acquired by the imaging device 702. The memory module 706 may be an on-board memory such as, but not limited to, a flash memory.

In this embodiment, the transmission module 708 is configured to transmit out the image information acquired by the imaging device 702. The transmission module 708 may use one or more connections, such as, but not limited to, a USB interface, an ethernet interface, or a bluetooth wireless connection.

In the present embodiment, as shown in fig. 8, the thickness direction H of the electronic device 700 is parallel to the first direction X, the long-side direction L of the electronic device 700 is parallel to the second direction Y, and the short-side direction W of the electronic device 700 is parallel to the third direction Z. The long-side direction L is an extending direction of a long side of the electronic device 700, the short-side direction W is an extending direction of a short side of the electronic device 700, and the first direction X, the second direction Y are perpendicular to the third direction Z.

As shown in fig. 9, the optical axis 19 of the zoom imaging lens 100 includes a first sub-axis 191 and a second sub-axis 192, the first sub-axis 191 being parallel to the thickness direction H (first direction X), the second sub-axis 192 being parallel to the long-side direction L (second direction Y). In this way, a part of the constituent parts of the zoom imaging lens 100 can be accommodated by using the space of the electronic device in the longitudinal direction L, and the restriction of the size of the thickness of the electronic device to the zoom imaging lens 100 can be avoided, so that the zoom imaging lens 100 is not restricted to the size of the electronic device when focusing or zooming.

As shown in fig. 9, light is incident on the glass cover plate 801 in the thickness direction H (first direction X), light transmitted through the glass cover plate 801 is incident on the zoom imaging lens 100 in the thickness direction H (first direction X), specifically, light transmitted through the glass cover plate 801 is sequentially incident on the first lens group 11, the first liquid lens assembly 13, and the light flux steering element 16 in the thickness direction H (first direction X), the light flux steering element 16 emits received light to the second lens group 12 in the long side direction L (second direction Y), and light emitted from the second lens group 12 is finally incident on the image sensor 18 through the optical filter 17.

In another embodiment, when the long side of the electronic device 700 is parallel to the second direction Y, the short side of the electronic device 700 may be parallel to the first direction X. In yet another embodiment, the short side of the electronic device 700 is parallel to the second direction Y, the long side of the electronic device 700 is parallel to the first direction X, or the thickness direction H of the electronic device 700 is the first direction X.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

A zoom imaging lens, characterized by comprising: a first lens group and at least one liquid lens component; the first lens group and at least one liquid lens component are sequentially arranged from the object side to the image side along the optical axis of the zoom imaging lens; the position of the first lens group along the optical axis is fixed;

the liquid lens assembly comprises a fluid and a film, wherein the fluid is wrapped by the film; the thin film is deformable and transparent, and the shape of the thin film can be changed along with external force; the focal length of the liquid lens assembly changes as the shape of the film changes; the focal length of at least one of all of the liquid lens assemblies is changed to achieve zoom and/or focus of the zoom imaging lens.
The variable focus imaging lens of claim 1 comprising a first liquid lens assembly and a second lens group, wherein the second lens group comprises a second liquid lens assembly;

The first lens group, the first liquid lens component and the second lens group are sequentially arranged from an object side to an image side along the optical axis;

the first liquid lens assembly comprises a first fluid and a first film, wherein the first fluid is wrapped by the first film; the first film is deformable and transparent, and the shape of the first film can be changed along with external force; a focal length of the first liquid lens assembly changes as a shape of the first film changes;

the second liquid lens assembly comprises a second fluid and a second film, wherein the second fluid is wrapped by the second film; the second film is deformable and transparent, and the shape of the second film can be changed along with external force; a focal length of the second liquid lens assembly changes as a shape of the second film changes;

at least one of the focal length of the first liquid lens assembly and the focal length of the second liquid lens assembly is changed to achieve zooming and/or focusing of the zoom imaging lens.
The zoom imaging lens of claim 1, wherein the liquid lens assembly further comprises a flat substrate having a refractive power of 0;

The flat substrate provides a bearing surface for the film.
The zoom imaging lens of claim 1, further comprising a motor comprising a first mover, the motor configured to drive the first mover to move along an optical axis;

the liquid lens assembly comprises a second rotor which is fixedly connected with the first rotor and can move along the optical axis along with the first rotor so as to change the shape of the film.
The zoom imaging lens of claim 1, wherein the first lens group comprises at least one positive power lens, the positive power lens being a solid lens, the abbe number of the positive power lens being greater than 30.
The zoom imaging lens of claim 1, wherein the first lens group further comprises at least one negative power lens, the negative power lens being a solid lens, the negative power lens having an abbe number of less than 40.
The zoom imaging lens of claim 2, wherein the second lens group further comprises at least one positive power lens and one negative power lens, both of which are solid lenses.
The zoom imaging lens according to claim 1, wherein a distance between a surface vertex of the first lens group object side and an image plane on the optical axis is TTL, an effective image height is IH, and the TTL and the IH satisfy the following relation:

TTL/IH<30。
the variable focus imaging lens of claim 1 wherein said fluid has an abbe number greater than 40.
The zoom imaging lens of claim 2, further comprising an aperture, the aperture being located in the second lens group.
The zoom imaging lens according to claim 10, wherein the aperture value of the diaphragm is F1.5 to F4.5.
The zoom imaging lens of claim 1, further comprising a beam steering element located on an object side of the first lens group;

the beam steering element is configured such that light incident in a first direction, which is different from a second direction, is emitted to the first lens group in the second direction, and the optical axis is parallel to the second direction.
The variable focus imaging lens of claim 2 further comprising a beam steering element positioned between said first lens group and said first liquid component;

The light beam steering element is configured to emit light incident along a first direction to the first liquid component along a second direction, the first direction being different from the second direction, the optical axis including a first sub-axis and a second sub-axis, the first sub-axis being parallel to the first direction, the second sub-axis being parallel to the second direction, lenses in the first lens group being arranged along the first sub-axis, and the first liquid component and the second lens group being arranged along the second sub-axis.
The zoom imaging lens of claim 2, further comprising a beam steering element positioned between the first liquid component and the second lens group;

the beam steering element is configured to eject light incident in a first direction to the second lens group in a second direction, the first direction being different from the second direction, the optical axis including a first sub-axis parallel to the first direction and a second sub-axis parallel to the second direction, the first lens group and the first liquid component being arranged along the first sub-axis, and lenses in the second lens group being arranged along the second sub-axis.
An imaging device comprising an image sensor and the zoom imaging lens of any one of claims 1 to 14, the image sensor being located at an image plane of the zoom imaging lens.
An electronic apparatus comprising an apparatus body and the imaging device of claim 15, the imaging device being mounted on the apparatus body.
The electronic device of claim 16, further comprising a control module configured to control a focal length of each of the liquid lens assemblies to achieve zooming or focusing according to a correspondence between control signals and a preset correspondence, wherein the correspondence includes a correspondence between a focal length of the zoom imaging lens, an object distance, and control information of a focal length of each of the liquid lens assemblies, the control signals including a focal length of the zoom imaging lens.
The electronic device of claim 17, further comprising a temperature sensor configured to obtain temperature information for each of the liquid lens assemblies;

for each liquid lens component, the corresponding relation further comprises a corresponding relation between temperature information of the liquid lens component and control information of a focal length of the liquid lens component when the liquid lens component is optimally focused at the current temperature.
The electronic device of claim 16, wherein when the zoom imaging lens further comprises a beam steering element, the first direction is perpendicular to the second direction;

when the short side of the electronic equipment is parallel to the second direction, the long side of the electronic equipment is parallel to the first direction, or the thickness direction of the electronic equipment is the first direction;

when the long side of the electronic equipment is parallel to the second direction, the short side of the electronic equipment is parallel to the first direction, or the thickness direction of the electronic equipment is the first direction.