Zoom lens unit and its manufacturing method and application

Abstract

The present invention discloses a zoom lens unit and its manufacturing method and application, wherein the manufacturing method comprises the following steps: (a) forming a holding space between an annular supporting base, a deformable light-transmitting film and a light-transmitting sheet; (b) injecting a fluid into the holding space through an injection port connected to the holding space; and (c) after the fluid fills the holding space, closing the injection port to allow the fluid to form a refractive portion in the holding space, wherein the light-transmitting film defines and maintains the surface shape of a light-entering surface of the refractive portion, and the light-transmitting sheet defines and maintains the surface shape of a light-exiting surface of the refractive portion, so that the surface shape of the light-entering surface of the refractive portion can be deformed as the light-transmitting film is deformed, so as to achieve zooming of a camera module using the zoom lens unit.

Description

Technical Field

[0001] The present invention relates to the field of optical imaging, and in particular to a zoom lens unit and a manufacturing method and application thereof. Background Art

[0002] The optical lens used for the light path is a component of the camera module, which is composed of a lens barrel and a lens arranged in the lens barrel. The lens of the existing optical lens (such as a glass lens or a resin lens) has a light-entering surface and a light-emitting surface, and the surface shape of the light-entering surface and the surface shape of the light-emitting surface of the lens are determined so that the light path of the optical lens is determined. Therefore, if the camera module is to be zoomed, it can only be achieved by changing the relative position of the optical lens and the photosensitive chip of the camera module. Therefore, the camera module with zoom capability also needs to provide a zoom motor, and the optical lens is drivably installed inside the zoom motor. In this way, the zoom motor adjusts the position of the optical lens relative to the photosensitive chip by driving the optical lens to move along the optical axis of the camera module to achieve the zoom of the camera module.

[0003] However, the structure of existing camera modules is increasingly not adapted to the needs of electronic devices that pursue thinness and lightness. The specific reasons are as follows: first, the camera module needs to reserve travel space for the optical lens to move along the optical axis, which makes it impossible to reduce the height of the camera module; second, the camera module needs to be equipped with zoom motors around the optical lens, which makes it impossible to reduce the length and width of the camera module corresponding to the optical lens.

[0004] Furthermore, because the camera module has to arrange zoom motors around the optical lens, resulting in a larger length and width at the position corresponding to the optical lens, the camera module with zoom capability is not suitable for being applied to the front side of a camera module that pursues a high screen-to-body ratio to form a front camera module. Summary of the invention

[0005] One object of the present invention is to provide a zoom lens unit and a manufacturing method and application thereof, wherein the zoom lens unit provides a refractive portion, and the surface shape of the light incident surface of the refractive portion can be changed, so that when the zoom lens unit is assembled into an optical lens and the optical lens is applied to a camera module, the zoom of the camera module can be achieved without changing the relative position of the photosensitive chip of the camera module and the optical lens.

[0006] One object of the present invention is to provide a zoom lens unit and a manufacturing method and application thereof, wherein the zoom lens unit allows zooming without changing the relative positions of the photosensitive chip and the optical lens of the camera module, so that the camera module does not need to reserve a travel space for the optical lens to move and the height dimension of the camera module can be effectively reduced.

[0007] One object of the present invention is to provide a zoom lens unit and a manufacturing method and application thereof, wherein the zoom lens unit allows zooming to be achieved without changing the relative positions of the photosensitive chip and the optical lens of the camera module, so that the camera module does not need to be provided with a zoom motor for driving the optical lens and can effectively reduce the length and width of the camera module corresponding to the optical lens.

[0008] One object of the present invention is to provide a zoom lens unit and a manufacturing method and application thereof, wherein the central axis of the camera module coincides with the central axis of the refractive portion, and the refractive portion is at the same annular position from the central axis of the camera module, and the degree of deformation of the refractive portion is consistent, thereby ensuring the reliability of the camera module.

[0009] An object of the present invention is to provide a zoom lens unit and a manufacturing method and application thereof, wherein the surface curvature of the light incident surface of the refractive portion can be adjusted in a continuously changing manner to achieve continuous zoom of the camera module.

[0010] One object of the present invention is to provide a zoom lens unit and a manufacturing method and application thereof, wherein the surface shape of the light incident surface of the refractive portion can be adjusted to be a convex surface, a flat surface or a concave surface, so as to greatly increase the zoom capability and zoom range of the camera module.

[0011] One object of the present invention is to provide a zoom lens unit and a manufacturing method and application thereof, wherein the zoom lens unit provides an annular supporting base and a deformable light-transmitting film and a light-transmitting sheet respectively arranged on opposite sides of the supporting base, and a retaining space is formed between the supporting base, the light-transmitting film and the light-transmitting sheet to be filled with and retain the refractive portion, in this way, the shape of the refractive portion can be maintained and further maintain the incident light path of the optical lens.

[0012] One object of the present invention is to provide a zoom lens unit and a manufacturing method and application thereof, wherein the light incident surface of the refractive portion is attached to the light-transmitting film, and the refractive portion is configured to allow the surface shape of the light incident surface of the refractive portion to deform synchronously and to the same extent as the light-transmitting film is deformed, thereby facilitating the zoom of the camera module by adjusting the shape of the light-transmitting film and facilitating the control of the zoom accuracy of the camera module.

[0013] One object of the present invention is to provide a zoom lens unit and a manufacturing method and application thereof, wherein the zoom lens unit provides an annular driving medium and a driver, the driving medium is adhered to the light-transmitting film to combine the two into one, and the driver drives the light-transmitting film through the driving medium to adjust the shape of the light-transmitting film, so that: on the one hand, by avoiding the driver from directly contacting the light-transmitting film, the undesirable phenomenon of the light-transmitting film being directly pressed and damaged can be avoided, and on the other hand, the driving medium can evenly transmit the driving force to the driving film to cause the driving film to produce a uniform degree of deformation in the annular direction.

[0014] According to one aspect of the present invention, the present invention provides a method for manufacturing a zoom lens unit, wherein the manufacturing method comprises the following steps:

[0015] (a) forming a holding space between an annular supporting base, a deformable light-transmitting film and a light-transmitting sheet;

[0016] (b) injecting a fluid into the holding space through an injection port connected to the holding space; and

[0017] (c) After the fluid fills the retaining space, the injection port is closed to allow the fluid to form a refractive portion in the retaining space, wherein the light-transmitting film defines and maintains the shape of a light-entering surface of the refractive portion, and the light-transmitting sheet defines and maintains the shape of a light-exiting surface of the refractive portion.

[0018] According to an embodiment of the present invention, the injection port is provided in the light-transmitting sheet, wherein in the step (c), a sealing element is formed at the injection port of the light-transmitting sheet and the injection port is sealed by the sealing element.

[0019] According to an embodiment of the present invention, the injection port is located outside the effective edge position of the refraction portion.

[0020] According to one embodiment of the present invention, the step (a) further comprises the steps of:

[0021] (a.1) the light-transmitting film is arranged on the top side of the base of the support base in such a manner that the light-transmitting film closes the opening of the support base on the top side of the base;

[0022] (a.2) The light-transmitting sheet is arranged on the bottom side of the support base in such a manner that the light-transmitting sheet closes the opening of the support base on the bottom side of the base, thereby forming the holding space between the light-transmitting film, the support base and the light-transmitting sheet.

[0023] According to one embodiment of the present invention, the manufacturing method further comprises the step of: (d) bonding a driving medium to the light-transmitting film to allow the driving medium and the light-transmitting film to be integrated into one.

[0024] According to one embodiment of the present invention, before the step (a.1), the manufacturing method further comprises the step of: (d) bonding a driving medium to the light-transmitting film to allow the driving medium and the light-transmitting film to be integrated into one.

[0025] According to an embodiment of the present invention, before the step (d), the manufacturing method further comprises the step of: (e) bonding a driver to the driving medium.

[0026] According to another aspect of the present invention, the present invention further provides a zoom lens unit, wherein the zoom lens unit has a holding space, and the zoom lens unit further comprises:

[0027] a light-transmitting sheet;

[0028] a deformable light-transmitting film;

[0029] a refraction portion, wherein the refraction portion has a light incident surface and a light emitting surface corresponding to the light incident surface; and

[0030] An annular support base, an annular support base, wherein the light-transmitting film and the light-transmitting sheet are respectively arranged on opposite sides of the support base to form the holding space between the light-transmitting film, the support base and the light-transmitting sheet, wherein the refractive portion fills and is held in the holding space, wherein the refractive portion is configured to allow the shape of the light-entering surface of the refractive portion to be adjusted.

[0031] According to one embodiment of the present invention, the supporting base has a base top side and a base bottom side corresponding to the base top side, the light-transmitting film is arranged on the base top side of the supporting base, and the light-transmitting sheet is arranged on the base bottom side of the supporting base.

[0032] According to one embodiment of the present invention, the supporting base has a base top side and a base bottom side corresponding to the base top side, and the light-transmitting film is arranged on the base top side of the supporting base, wherein the light-transmitting sheet is arranged on the supporting base in a manner that the light-transmitting sheet is surrounded by the supporting base.

[0033] According to an embodiment of the present invention, the light-transmitting film defines a surface shape of the light-incident surface of the refraction portion, and the surface shape of the light-incident surface of the refraction portion deforms as the light-transmitting film deforms.

[0034] According to an embodiment of the present invention, the light-transmitting sheet defines a surface shape of the light-emitting surface of the refraction portion.

[0035] According to one embodiment of the present invention, the light-transmitting sheet has an injection port connected to the holding space, wherein the zoom lens unit further includes a sealing element formed at the injection port of the light-transmitting sheet to seal the injection port.

[0036] According to an embodiment of the present invention, the injection port of the light-transmitting sheet is located outside the effective edge region of the refraction portion.

[0037] According to one embodiment of the present invention, the zoom lens unit further includes an annular driving medium and a driver, the driving medium having a medium through-hole, the driving medium being attached to the light-transmitting film so that the two are combined into one, the middle part of the light-transmitting film corresponds to the medium through-hole of the driving medium, and the driver is configured to apply force to the light-transmitting film through the driving medium.

[0038] According to one embodiment of the present invention, the zoom lens unit further includes an annular driving medium and a driver, the driving medium having a medium through-hole, the driving medium being attached to the light-transmitting film so that the two are combined into one, the middle part of the light-transmitting film corresponds to the medium through-hole of the driving medium, and the driver is configured to apply force to the light-transmitting film through the driving medium.

[0039] According to one embodiment of the present invention, the driver is a PZT driver.

[0040] According to one embodiment of the present invention, the driving medium has an outer side and an inner side corresponding to the outer side, the inner side defines the medium perforation, wherein the outer side of the driving medium corresponds to the supporting base, and the inner side of the driving medium extends toward the middle of the light-transmitting film to define the effective edge position of the refractive portion, wherein the driving medium can be driven by the driver to generate bending deformation in such a manner that the relative positions of the outer side of the driving medium and the supporting base remain unchanged and the inner side of the driving medium moves upward or downward.

[0041] According to an embodiment of the present invention, the refraction portion is a fluid.

[0042] According to an embodiment of the present invention, the light incident surface of the refraction portion is attached to the light-transmitting film, so as to allow the surface shape of the light incident surface of the refraction portion to be deformed synchronously and in the same magnitude as the deformation of the light-transmitting film.

[0043] According to an embodiment of the present invention, the light-transmitting sheet has a light-transmitting inner wall, the light-emitting surface of the refractive portion is attached to the light-transmitting inner wall of the light-transmitting sheet, wherein the surface shape of the light-transmitting inner wall of the light-transmitting sheet is a plane, a convex surface or a concave surface.

[0044] According to one embodiment of the present invention, when the surface shape of the light incident surface of the refraction portion is deformed along with the deformation of the light-transmitting film, the surface curvature of the light incident surface of the refraction portion is monotonic from the central axis of the refraction portion to the effective edge position of the refraction portion.

[0045] According to another aspect of the present invention, the present invention further provides an optical lens, comprising at least one zoom lens unit and at least one lens, wherein the zoom lens unit and the lens are arranged to be spaced apart from each other to define an optical path of the optical lens, wherein the zoom lens unit has a holding space, and the zoom lens unit further comprises:

[0046] a light-transmitting sheet;

[0047] a deformable light-transmitting film;

[0048] a refraction portion, wherein the refraction portion has a light incident surface and a light emitting surface corresponding to the light incident surface; and

[0049] An annular support base, an annular support base, wherein the light-transmitting film and the light-transmitting sheet are respectively arranged on opposite sides of the support base to form the holding space between the light-transmitting film, the support base and the light-transmitting sheet, wherein the refractive portion fills and is held in the holding space, wherein the refractive portion is configured to allow the shape of the light-entering surface of the refractive portion to be adjusted.

[0050] According to another aspect of the present invention, the present invention further provides a camera module, comprising a photosensitive component and an optical lens arranged in a photosensitive path of the photosensitive component, wherein the optical lens comprises at least one zoom lens unit and at least one lens, the zoom lens unit and the lens are arranged at intervals to define the optical path of the optical lens, wherein the zoom lens unit has a holding space, and the zoom lens unit further comprises:

[0051] a light-transmitting sheet;

[0052] a deformable light-transmitting film;

[0053] a refraction portion, wherein the refraction portion has a light incident surface and a light emitting surface corresponding to the light incident surface; and

[0054] An annular support base, an annular support base, wherein the light-transmitting film and the light-transmitting sheet are respectively arranged on opposite sides of the support base to form the holding space between the light-transmitting film, the support base and the light-transmitting sheet, wherein the refractive portion fills and is held in the holding space, wherein the refractive portion is configured to allow the shape of the light-entering surface of the refractive portion to be adjusted.

[0055] According to one embodiment of the present invention, the optical lens further includes a lens barrel, the zoom lens unit and the lens are assembled in the lens barrel, wherein the photosensitive component includes a circuit board, a photosensitive chip and a base, the base has a light window, the photosensitive chip is conductively connected to the circuit board, and the base is combined with or mounted on the circuit board so that the photosensitive area of ​​the photosensitive chip corresponds to the light window of the base, wherein the lens barrel is directly assembled to the base to maintain the light sensitive path of the optical lens in the photosensitive component.

[0056] According to another aspect of the present invention, the present invention further provides an electronic device, comprising an electronic device body and a camera module disposed on the rear side or the front side of the electronic device body, wherein the camera module comprises a photosensitive component and an optical lens disposed on the photosensitive path of the photosensitive component, wherein the optical lens comprises at least one zoom lens unit and at least one lens, wherein the zoom lens unit and the lens are disposed at intervals to define the optical path of the optical lens, wherein the zoom lens unit has a holding space, and the zoom lens unit further comprises:

[0057] a light-transmitting sheet;

[0058] a deformable light-transmitting film;

[0059] a refraction portion, wherein the refraction portion has a light incident surface and a light emitting surface corresponding to the light incident surface; and

[0060] An annular support base, an annular support base, wherein the light-transmitting film and the light-transmitting sheet are respectively arranged on opposite sides of the support base to form the holding space between the light-transmitting film, the support base and the light-transmitting sheet, wherein the refractive portion fills and is held in the holding space, wherein the refractive portion is configured to allow the shape of the light-entering surface of the refractive portion to be adjusted.

[0061] According to one embodiment of the present invention, the optical lens further includes a lens barrel, the zoom lens unit and the lens are assembled in the lens barrel, wherein the photosensitive component includes a circuit board, a photosensitive chip and a base, the base has a light window, the photosensitive chip is conductively connected to the circuit board, and the base is combined with or mounted on the circuit board so that the photosensitive area of ​​the photosensitive chip corresponds to the light window of the base, wherein the lens barrel is directly assembled to the base to maintain the light sensitive path of the optical lens in the photosensitive component. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1A It is a cross-sectional schematic diagram of one of the manufacturing processes of a zoom lens unit according to a preferred embodiment of the present invention.

[0063] Figure 1B 2 is a cross-sectional schematic diagram of the second manufacturing process of the zoom lens unit according to the above preferred embodiment of the present invention.

[0064] Figure 1C 1 is a cross-sectional schematic diagram of the third manufacturing process of the zoom lens unit according to the above preferred embodiment of the present invention.

[0065] Figure 1D 4 is a cross-sectional schematic diagram of the fourth manufacturing process of the zoom lens unit according to the above preferred embodiment of the present invention.

[0066] Figure 1E 4 is a cross-sectional schematic diagram of the fifth manufacturing process of the zoom lens unit according to the above preferred embodiment of the present invention.

[0067] Figure 1F 1 is a cross-sectional schematic diagram of the sixth manufacturing process of the zoom lens unit according to the above preferred embodiment of the present invention.

[0068] Figure 1G 1 is a cross-sectional schematic diagram of the seventh manufacturing process of the zoom lens unit according to the above preferred embodiment of the present invention, which illustrates the cross-sectional state of the zoom lens unit.

[0069] Figure 2A 1 is a cross-sectional schematic diagram of a modified example of the zoom lens unit according to the above preferred embodiment of the present invention.

[0070] Figure 2B 2 is a cross-sectional schematic diagram of another modified example of the zoom lens unit according to the above preferred embodiment of the present invention.

[0071] Figure 2C 2 is a cross-sectional schematic diagram of another modified example of the zoom lens unit according to the above preferred embodiment of the present invention.

[0072] Figure 3 It is a cross-sectional schematic diagram of an optical lens according to a preferred embodiment of the present invention.

[0073] Figure 4 It is a cross-sectional schematic diagram of a camera module according to a preferred embodiment of the present invention.

[0074] Figure 5A and Figure 5B They are respectively cross-sectional schematic diagrams of the camera module at different focal lengths according to the above preferred embodiments of the present invention.

[0075] Figure 6 It is a three-dimensional schematic diagram of an electronic device according to a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0076] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0077] Those skilled in the art should understand that, in the disclosure of the present invention, the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0078] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0079] With reference to the accompanying drawings of the present invention Figures 1A to 1G A zoom lens unit 10 according to a preferred embodiment of the present invention and a method for manufacturing the zoom lens unit 10 will be disclosed and explained in the following description.

[0080] Reference Figure 1AThe manufacturing method includes the steps of: (A) providing a flexible driving medium 11, wherein the driving medium 11 has a medium outer side 111, an medium inner side 112 and a medium through hole 113, wherein the medium outer side 111 and the medium inner side 112 correspond to each other, and the medium inner side 112 defines the medium through hole 113, so that the driving medium 11 is annular.

[0081] The driving medium 11 can be bent and deformed. Specifically, when a force is applied to the driving medium 11, the outer side 111 and the inner side 112 of the driving medium 11 can have a height difference, and the height difference between the outer side 111 and the inner side 112 of the driving medium 11 is determined by the driving force applied to the driving medium 11. More specifically, the external force applied to the driving medium 11 can ensure that the height position of the outer side 111 of the driving medium 11 remains unchanged while only driving the inner side 112 to move upward or downward, so that the outer side 111 and the inner side 112 of the driving medium 11 have a height difference and allow the driving medium 11 to be bent and deformed.

[0082] For example, the initial state of the driving medium 11 is that the outer side 111 and the inner side 112 of the medium are at the same height position. When force is applied to the driving medium 11 so that the height position of the outer side 111 of the medium remains unchanged and only the inner side 112 of the medium is pulled upward, the height position of the inner side 112 of the driving medium 11 is higher than the height position of the outer side 111 of the driving medium 11, so that there is a height difference between the outer side 111 and the inner side 112 of the driving medium 11, allowing the driving medium 11 to bend and deform; accordingly, when force is applied to the driving medium 11 so that the height position of the outer side 111 of the medium remains unchanged and only the inner side 112 of the medium is pressed downward, the height position of the inner side 112 of the driving medium 11 is lower than the height position of the outer side 111 of the driving medium 11, so that there is a height difference between the outer side 111 and the inner side 112 of the driving medium 11, allowing the driving medium 11 to bend and deform.

[0083] It is worth mentioning that the material of the driving medium 11 is not limited in the manufacturing method of the present invention, as long as the material can allow the driving medium 11 to bend and deform when the inner side 112 of the driving medium 11 is subjected to force. For example, the driving medium 11 can be made of but not limited to glass.

[0084] Reference Figure 1BThe manufacturing method includes the steps of: (B) disposing a driver 12 on the driving medium 11 so as to allow the driving medium 11 to bend and deform by applying force to the driving medium 11 by the driver 12 .

[0085] Preferably, in this preferred example of the manufacturing method of the present invention, the driver 12 is a PZT driver (Piezoelectric Transducer), so that in the step (B), the driver 12 is mounted on the driving medium 11 to allow the driver 12 to apply force to the driving medium 11 to bend and deform the driving medium 11. By mounting the driver 12 on the surface of the driving medium 11, on the one hand, the driver 12 does not occupy the circumferential space of the driving medium 11, and on the other hand, the driver 12 has a smaller thickness, which is conducive to reducing the thickness of the zoom lens unit 10.

[0086] Preferably, the driver 12 is annular, and the driver 12 extends outward to the medium outer side 111 of the driving medium 11 , and extends inward to the driving inner side 112 of the driving medium 11 .

[0087] Reference Figure 1C The manufacturing method further includes the steps of: (C) attaching a deformable light-transmitting film 13 to the driving medium 11 so that the light-transmitting film 13 and the driving medium 11 are combined into one, and the medium perforation 113 of the driving medium 11 corresponds to the middle of the light-transmitting film 13, so that the driver 12 drives the light-transmitting film 13 through the driving medium 11 to adjust the shape of the light-transmitting film 13.

[0088] In other words, the driving medium 11 is located between the driver 12 and the light-transmitting film 13, so that: on the one hand, the driver 12 is prevented from directly contacting the light-transmitting film 13, so as to avoid the undesirable phenomenon that the light-transmitting film 13 is directly subjected to force and is damaged, for example, it is possible to avoid the undesirable phenomenon that the light-transmitting film 13 is directly pressurized by the driver 12 and is damaged; on the other hand, the driving medium 11 can evenly transmit the driving force to the light-transmitting film 13 to cause the light-transmitting film 13 to be deformed to a consistent degree in the annular direction.

[0089] Reference Figure 1D and Figure 1EThe manufacturing method further includes the steps of: (D) attaching an annular support base 14 to the light-transmitting film 13 and allowing the light-transmitting film 13 to close an opening on one side of the support base 14, and (E) attaching a light-transmitting sheet 15 to the support base 14 and allowing the light-transmitting sheet 15 to close an opening on the other side of the support base 14, so that a holding space 16 is formed between the light-transmitting film 13, the support base 14 and the light-transmitting sheet 15, and an injection port 151 of the light-transmitting sheet 15 is connected to the holding space 16.

[0090] In the manufacturing method of the present invention, one side of the support base 14 is defined as a base top side 141, and the other side is defined as a base bottom side 142, so that the base top side 141 and the base bottom side 142 of the support base 14 correspond to each other, wherein the light-transmitting film 13 is attached to the base top side 141 of the support base 14, and the light-transmitting film 13 closes the opening of the support base 14 at the base top side 141, and accordingly, the light-transmitting sheet 15 is attached to the base bottom side 142 of the support base 14, and the light-transmitting sheet 15 closes the opening of the support base 14 at the base bottom side 142.

[0091] Reference Figure 1F and Figure 1G The manufacturing method further includes the steps of: (F) injecting a fluid into the retaining space 16 through the injection port 151 of the light-transmitting sheet 15, and (G) after the fluid fills the retaining space 16, closing the injection port 151 of the light-transmitting sheet 15 to allow the fluid to form a refractive portion 17 in the retaining space 16, wherein the light-transmitting film 13 defines and maintains the surface shape of a light incident surface 171 of the refractive portion 17, the light-transmitting sheet 15 defines and maintains the surface shape of a light emitting surface 172 of the refractive portion 17, and the supporting base 14 defines and maintains a peripheral edge 173 of the refractive portion 17.

[0092] In the present invention, the refraction portion 17 is formed by the fluid that fills and is held in the holding space 16 of the zoom lens unit 10, so that: on the one hand, the refraction portion 17 is guaranteed to have no elastic modulus, and on the other hand, the radius of curvature of the light incident surface 171 of the refraction portion 17 can be adjusted in a continuously variable manner. In this preferred example of the manufacturing method of the present invention, the fluid can be a liquid. Alternatively, in an optional example of the manufacturing method of the present invention, the fluid can be a low modulus jelly.

[0093] Preferably, the thickness of the refraction portion 17 is in the range of 0.15 mm to 0.3 mm (including 0.15 mm and 0.3 mm).

[0094] Reference Figure 1G , the intermediary outer side 111 of the driving intermediary 11 corresponds to the supporting base 14, and the intermediary inner side 112 of the driving intermediary 11 extends to a suitable position in the direction of the central axis of the zoom lens unit 10 to define an effective edge position 174 of the refraction portion 17, wherein the effective edge position 174 of the refraction portion 17 refers to the outermost position of the refraction portion 17 that allows light to pass through. Preferably, the injection port 151 of the light-transmitting sheet 15 is located outside the effective edge position 174 of the refraction portion 17 and as close to the supporting base 14 as possible, so as to avoid the setting of the injection port 151 of the light-transmitting sheet 15 affecting the optical path of the zoom lens unit 10.

[0095] Continue to refer to the attached Figure 1G In the step (G), a sealing element 18 is allowed to be formed at the injection port 151 of the light-transmitting sheet 15 for sealing the injection port 151 of the light-transmitting sheet 15, thereby allowing the retaining space 16 of the zoom lens unit 10 to form a closed space and preventing the fluid used to form the refractive portion 17 from leaking through the injection port 151 of the light-transmitting sheet 15.

[0096] It is worth mentioning that the material used to form the sealing element 18 at the injection port 151 of the light-transmitting sheet 15 is not limited in the manufacturing method of the present invention, as long as it can be reliably combined with the light-transmitting sheet 15 to seal the injection port 151 of the light-transmitting sheet 15. For example, the material used to form the sealing element 15 at the injection port 151 of the light-transmitting sheet 15 can be glass glue.

[0097] Preferably, the injection port 151 of the light-transmitting sheet 15 is located outside the effective edge position 174 of the refraction portion 17 and as close to the support base 14 as possible to avoid interfering with the optical path of the zoom lens unit 10. In other words, the injection port 151 of the light-transmitting sheet 15 is located within the projection range of the driving medium 11 on the light-transmitting sheet 15, so that the injection port 151 of the light-transmitting sheet 15 is located outside the effective edge position 174 of the refraction portion 17.

[0098] According to another aspect of the present invention, the present invention provides a method for manufacturing the zoom lens unit 10, wherein the manufacturing method comprises the following steps:

[0099] (a) forming the holding space 16 between the annular supporting base 14, the deformable light-transmitting film 13 and the light-transmitting sheet 15;

[0100] (b) injecting the fluid into the holding space 16 through the injection port 151 of the light-transmitting sheet 15 connected to the holding space 16; and

[0101] (c) After the fluid fills the retaining space 16, the injection port 151 of the light-transmitting sheet 15 is closed to allow the fluid to form the refractive portion 17 in the retaining space 16, wherein the light-transmitting film 13 defines and maintains the surface shape of the light incident surface 171 of the refractive portion 17, and the light-transmitting sheet 15 defines and maintains the surface shape of the light emitting surface 172 of the refractive portion 17.

[0102] Furthermore, in the step (c), the sealing element 18 is formed at the injection port 151 of the light-transmitting sheet 15 and the injection port 151 of the light-transmitting sheet 15 is sealed by the sealing element 18 .

[0103] The step (a) further comprises the steps of:

[0104] (a.1) the light-transmitting film 13 is arranged on the top side 141 of the support base 14 in such a manner that the light-transmitting film 13 closes the opening of the support base 14 on the top side 141 of the base;

[0105] (a.2) The light-transmitting sheet 15 is arranged on the base bottom side 142 of the supporting base 14 in such a manner that the light-transmitting sheet 15 closes the opening of the supporting base 14 on the base bottom side 142, thereby forming the retaining space 16 between the light-transmitting film 13, the supporting base 14 and the light-transmitting sheet 15.

[0106] It is worth mentioning that, in the step (a.1), the edge of the light-transmitting film 13 and the surface of the base top side 141 of the supporting base 14 are tightly fitted, so as to set the light-transmitting film 13 on the base top side 141 of the supporting base 14, and the light-transmitting film 13 closes the opening of the supporting base 14 on the base top side 141. Correspondingly, in the step (a.2), the edge of the light-transmitting sheet 15 and the surface of the base bottom side 142 of the supporting base 14 are tightly fitted, so as to set the light-transmitting sheet 15 on the base bottom side 142 of the supporting base 14, and the light-transmitting sheet 15 closes the opening of the supporting base 14 on the base bottom side 142. In this way, the zoom lens assembly 10 can ensure that the refractive portion 17 is filled with and retained in the retaining space 16.

[0107] The manufacturing method further comprises the step of: (d) attaching the driving medium 11 to the light-transmitting film 13 to allow the driving medium 11 and the light-transmitting film 13 to be integrated into one. Preferably, the step (d) is performed before the step (a.1), so that the driving medium 11 is first attached to the light-transmitting film 13, and then the edge of the light-transmitting film 13 and the surface of the base top side 141 of the supporting base 14 are allowed to fit closely.

[0108] The manufacturing method further comprises the step of: (e) attaching the driver 12 to the driving medium 11. Preferably, the step (e) precedes the step (a.1), so that the driver 12 is first attached to the driving medium 11, and then the edge of the light-transmitting film 13 and the surface of the base top side 141 of the supporting base 14 are allowed to fit closely.

[0109] Continue to refer to the attached Figures 1A to 1G The light-transmitting sheet 15 of the zoom lens unit 10 has a light-transmitting inner wall 152, and the light-transmitting inner wall 152 is a plane, so that the light-emitting surface 172 of the refraction portion 17 is a plane. Figure 2A In the specific example of the zoom lens unit 10 shown in FIG. 1 , the light-transmitting inner wall 152 of the light-transmitting sheet 15 is a convex surface, and thus the light-emitting surface 172 of the light-refractionating portion 17 is a concave surface. Figure 2B In the specific example of the zoom lens unit 10 shown, the light-transmitting inner wall 152 of the light-transmitting sheet 15 is a concave surface, and thus the light-emitting surface 172 of the refractive portion 17 is a convex surface.

[0110] Attached Figure 2C Another modified example of the zoom lens unit 10 is shown. Figure 1G The zoom lens unit 10 shown is different in that Figure 2C In the specific example of the zoom lens unit 10 shown, the light-transmitting sheet 15 is not directly disposed on the surface of the base bottom side 142 of the support base 14, but the light-transmitting sheet 15 is disposed on the support base 14 in a manner that the light-transmitting sheet 15 is surrounded by the support base 14. Specifically, the support base 14 has an annular boss 143 that protrudes from the inner wall of the support base 14, that is, the boss 143 of the support base 14 protrudes toward the holding space 16, wherein the light-transmitting sheet 15 is mounted on the boss 143 of the support base 14 so that the light-transmitting sheet 15 is disposed on the side of the support base 14. Preferably, the light-transmitting sheet 15 is mounted on the boss 143 of the support base 14 by gluing.

[0111] Attached Figure 3An optical lens 100' according to another preferred embodiment of the present invention is shown. Figures 4 to 5B A camera module 1000' according to another preferred embodiment of the present invention is shown, wherein the camera module 1000' includes a photosensitive component 200' and the optical lens 100' arranged in the photosensitive path of the photosensitive component 200', wherein the light reflected by the object can be received by the photosensitive component 200' after passing through the optical lens 100', so that the photosensitive component 200' can subsequently perform photoelectric conversion to obtain an electrical signal about the image of the object.

[0112] For details, please refer to the attached Figures 3 to 5B The photosensitive component 200' includes a circuit board 201' and a photosensitive chip 202' conductively connected to the circuit board 201', wherein the optical lens 100' is maintained in the photosensitive path of the photosensitive chip 202', and the light reflected by the object can be received by the photosensitive chip 202' of the photosensitive component 200' after passing through the optical lens 100', and then the photosensitive chip 202' performs photoelectric conversion to form an image.

[0113] Preferably, the photosensitive chip 202' is mounted on the circuit board 201', and the photosensitive component 200' includes at least one set of leads 203', and the two opposite ends of the leads 203' are respectively connected to the photosensitive chip 202' and the circuit board 201' to conduct the photosensitive chip 202' and the circuit board 201'. Optionally, in other examples of the camera module 1000' of the present invention, the photosensitive chip 202' is mounted on the circuit board 201', and the photosensitive chip 202' and the circuit board 201' are directly connected.

[0114] Continue to refer to the attached Figures 3 to 5B The photosensitive component 200' further includes a base 204', and the base 204' has a light window 2041', wherein the base 204' is integrally combined with the circuit board 201' through a molding process, and the photosensitive area of ​​the photosensitive chip 202' corresponds to the light window 2041' of the base 204', so that there is no need to set glue between the base 204' and the circuit board 201', which is conducive to reducing the height dimension of the camera module 1000'.

[0115] Preferably, the base 204' is further combined with the non-photosensitive area of ​​the photosensitive chip 202'. In other words, the base 204' is integrated with the circuit board 201' and the photosensitive chip 202', so that: first, there is no need to reserve a safety distance or mounting distance between the base 204' and the photosensitive chip 202', which is conducive to reducing the length and width of the camera module 1000'; second, the base 204' can ensure the flatness of the photosensitive chip 202', so that the circuit board 201' can choose a thinner plate, which is conducive to reducing the height of the camera module 1000'. ; On the third aspect, the base 204' is in direct contact with the photosensitive chip 202', so that the base 204' can directly conduct and radiate outward the heat generated by the photosensitive chip 202' during operation, so as to help reduce the operating temperature of the photosensitive chip 202'; on the fourth aspect, the base 204' can cover the lead 203', so as to help ensure the reliability of the welding position of the lead 203' and the circuit board 201' and ensure the reliability of the welding position of the lead 203' and the photosensitive chip 202'.

[0116] Optionally, in other examples of the camera module 1000' of the present invention, the base 204' is prefabricated, and the prefabricated base 204' is mounted on the circuit board 201', wherein the base 204' surrounds the photosensitive chip 202' to allow the photosensitive area of ​​the photosensitive chip 202' to correspond to the light window 2041' of the base 204'.

[0117] Continue to refer to the attached Figures 3 to 5B The optical lens 100' includes at least one zoom lens unit 10', wherein the zoom lens unit 10' further includes an annular supporting base 14', a deformable light-transmitting film 13', a light-transmitting sheet 15' and a refractive portion 17', and the zoom lens unit 10' further has a retaining space 16', wherein the retaining space 16' is formed between the supporting base 14', the light-transmitting film 13' and the light-transmitting sheet 15', wherein the refractive portion 17' fills and is retained in the retaining space 16' of the zoom lens unit 10'.

[0118] Specifically, the supporting base 14' has a base top side 141' and a base bottom side 142' corresponding to the base top side 141', wherein the light-transmitting film 13' is arranged on the base top side 141' of the supporting base 14', and the light-transmitting sheet 15' is arranged on the base bottom side 142' of the supporting base 14', so that the zoom lens unit 10' forms the retaining space 16' between the supporting base 14', the light-transmitting film 13' and the light-transmitting sheet 15'. The refractive portion 17' has a light incident surface 171', a light emitting surface 172' corresponding to the light incident surface 171', and a peripheral edge 173' extending between the light incident surface 171' and the light emitting surface 172', wherein the surface shape of the light incident surface 171' of the refractive portion 17' is defined and maintained by the light-transmitting film 13', the surface shape of the light emitting surface 172' of the refractive portion 17' is defined and maintained by the light-transmitting sheet 15', and the surface shape of the peripheral edge 173' of the refractive portion 17' is defined and maintained by the supporting base 14', so that the refractive portion 17' is configured to fill and be maintained in the retaining space 16' of the zoom lens unit 10'.

[0119] More specifically, the edge of the light-transmitting film 13' and the surface of the base top side 141' of the supporting base 14' are tightly fitted, so that the light-transmitting film 13' is set on the base top side 141' of the supporting base 14', and the light-transmitting film 13' closes the opening of the supporting base 14' at the base top side 141'; accordingly, the edge of the light-transmitting sheet 15' and the surface of the base bottom side 142' of the supporting base 14' are tightly fitted, so that the light-transmitting sheet 15' is set on the base bottom side 142' of the supporting base 14', and the light-transmitting sheet 15' closes the opening of the supporting base 14' at the base bottom side 142'; in this way, the optical lens 100' can ensure that the refractive portion 17' is filled with and retained in the retaining space 16' of the zoom lens unit 10'.

[0120] It is worth mentioning that the bonding method of the edge of the light-transmitting film 13' and the surface of the top side 141' of the support base 14' is not limited in the camera module 1000' of the present invention. For example, the edge of the light-transmitting film 13' and the surface of the top side 141' of the support base 14' can be bonded by glue. Correspondingly, the bonding method of the edge of the light-transmitting sheet 15' and the surface of the bottom side 142' of the support base 14' is not limited in the camera module 1000' of the present invention. For example, the edge of the light-transmitting sheet 15' and the surface of the bottom side 142' of the support base 14' can be bonded by glue.

[0121] Continue to refer to the attached Figures 3 to 5B The light incident surface 171' of the refractive portion 17' is attached to the light-transmitting film 13' to allow the light-transmitting film 13' to define and maintain the surface shape of the light incident surface 171' of the refractive portion 17', wherein the light-transmitting film 13' is deformable, and the refractive portion 17' is configured to allow the surface shape of the light incident surface 171' of the refractive portion 171' to be deformed synchronously and to the same extent as the deformation of the light-transmitting film 13', thereby facilitating the zooming of the camera module 1000' by adjusting the shape of the light-transmitting film 13', and facilitating the control of the zooming accuracy of the camera module 1000'.

[0122] Preferably, the refraction part 17' is fluid, such as liquid, so that: on the one hand, the refraction part 17' is guaranteed to have no elastic modulus, so that the zoom accuracy of the camera module 1000' can be further accurately controlled; on the other hand, the curvature radius of the light incident surface 171' of the refraction part 17' can be adjusted in a continuously variable manner to achieve continuous zooming of the camera module 1000'. Optionally, the refraction part 17' is a low modulus colloid.

[0123] The light emitting surface 172' of the refractive portion 17' is adhered to the light transmitting sheet 15' to allow the light transmitting sheet 15' to define and maintain the surface shape of the light emitting surface 172' of the refractive portion 17', wherein the light transmitting sheet 214' is hard, so that when the surface shape of the light incident surface 171' of the refractive portion 17' is deformed synchronously and to the same extent as the deformation of the light transmitting film 13', the light transmitting sheet 15' maintains the surface shape of the light emitting surface 172' of the refractive portion 17' unchanged, thereby facilitating precise control of the zoom accuracy of the camera module 1000'.

[0124] Preferably, in the attached Figures 3 to 5B In the specific example of the camera module 1000' shown, the light-transmitting sheet 15' has a light-transmitting inner wall 152', and the light-transmitting inner wall 152' is a plane, so that the light-emitting surface 172' of the refraction portion 17' is a plane. Figure 2A In another specific example of the camera module 1000' shown in the figure, the light-transmitting inner wall 152' of the light-transmitting sheet 15' is a convex surface, so that the light-emitting surface 172' of the refraction portion 17' is a concave surface. Figure 2B In another specific example of the camera module 1000 ′ shown, the light-transmitting inner wall 152 of the light-transmitting sheet 15 ′ is a concave surface, so that the light-emitting surface 172 ′ of the refractive portion 17 ′ is a convex surface.

[0125] It is worth mentioning that the material type of the light-transmitting film 13' is not limited in the camera module 1000' of the present invention, as long as it can ensure that the opening of the supporting base 14' on the top side 141' of the base is closed and can be deformed when subjected to force. The material type of the light-transmitting sheet 15' is not limited in the camera module 1000' of the present invention, as long as it can ensure that the opening of the base bottom side 142' of the supporting base 14' is closed and the surface shape of the light-emitting surface 172' of the refractive portion 17' is maintained unchanged when the light-transmitting film 13' is subjected to force. For example, the light-transmitting sheet 15' can be made of glass. The material type of the supporting base 14' is not limited in the camera module 1000' of the present invention, as long as it can remain unchanged when the light-transmitting sheet 15' is subjected to force. For example, the supporting base 14' can be made of glass or metal.

[0126] Continue to refer to the attached Figures 3 to 5B The camera module 1000' has a central axis 1001', wherein the central axis 1001' of the camera module 1000' coincides with the central axis of the refraction portion 17' of the zoom lens unit 10', and the deformation degree of the refraction portion 17' is consistent throughout the entire annular position of the refraction portion 17' from the central axis 1001' of the camera module 1000', thereby facilitating the precise control of the light path of the camera module 1000' after zooming, thereby ensuring the reliability of the camera module 1000'.

[0127] For ease of understanding, three annular positions are arbitrarily selected from the light incident surface 171' of the refractive portion 17', namely a first annular position 1711', a second annular position 1712' and a third annular position 1713', the distance between any point of the first annular position 1711' and the central axis 1001' of the camera module 1000' is equal, the distance between any point of the second annular position 1712' and the central axis 1001' of the camera module 1000' is equal, the distance between any point of the third annular position 1713' and the central axis 1001' of the camera module 1000' is equal, and the second annular position 1712' is located outside the first annular position 1711', and the third annular position 1713' is located outside the second annular position 1712'. Regardless of whether the light-transmitting film 13' of the zoom lens unit 10' is subjected to force to adjust the surface shape of the light incident surface 171' of the refractive portion 17' to achieve the zooming of the camera module 1000' or after the zooming, the deformation degree of the refractive portion 17' at each point of the first annular position 1711' is consistent, the deformation degree of the refractive portion 17' at each point of the second annular position 1712' is consistent, the deformation degree of the refractive portion 17' at each point of the third annular position 1713' is consistent, and the deformation degree of the refractive portion 17' at the third annular position 1713' is greater than the deformation degree at the second annular position 1712', and accordingly, the deformation degree of the refractive portion 17' at the second annular position 1712' is greater than the deformation degree of the first annular position 1711'.

[0128] Preferably, no matter whether the light-transmitting film 13' of the zoom lens unit 10' is subjected to force to adjust the surface shape of the light-entering surface 171' of the refractive portion 17' to realize the zooming of the camera module 1000' or after the zooming, the surface curvature of the light-entering surface 171' of the refractive portion 17' is monotonic from the central axis of the refractive portion 17' to the effective edge position 174' of the refractive portion 17', wherein the effective edge position 174' of the refractive portion 17' refers to the outermost position of the refractive portion 17' that allows light to pass through. In other words, the deformation degree of the surface shape of the light-entering surface 171' of the refractive portion 17' near the effective edge position 174' is greater than the deformation degree near the central axis.

[0129] Continue to refer to the attached Figures 3 to 5BThe zoom lens unit 10' further includes an annular driving medium 11' and a driver 12', wherein the driving medium 11' has a medium through hole 113', the driving medium 11' is attached to the light-transmitting film 13' so that the driving medium 11' and the light-transmitting film 13' are combined into one, the middle part of the light-transmitting film 13' corresponds to the medium through hole 113' of the driving medium 11', and the driving medium 11' defines the effective edge position 174' of the refraction portion 17', wherein the driver 12' drives the refraction portion 17' through the driving medium 11'. The light-transmitting film 13' is moved to adjust the shape of the light-transmitting film 13'. In this way, on the one hand, the optical lens 100' can prevent the driver 12' from directly contacting the light-transmitting film 13', so as to avoid the undesirable phenomenon that the light-transmitting film 13' is directly subjected to force and is damaged. For example, it can avoid the undesirable phenomenon that the light-transmitting film 13' is directly pressed by the driver 12' and is damaged. On the other hand, the driving medium 11' can evenly transmit the driving force to the light-transmitting film 13' to cause the light-transmitting film 13' to be deformed to a uniform degree in the annular direction.

[0130] It is worth mentioning that the type of the driver 12' of the zoom lens unit 10' is not limited in the camera module 1000' of the present invention. Figures 3 to 5B In the specific example of the camera module 1000' shown, the driver 12' of the zoom lens unit 10' can be a PZT driver (Piezoelectric Transducer), which is mounted on the driving medium 11' and is used to drive the driving medium 11' to produce bending deformation, which is conducive to miniaturization of the optical lens 100' and further reducing the size of the camera module 1000'.

[0131] Specifically, refer to the attached Figures 3 to 5BThe driving medium 11' has an intermediary outer side 111' and an intermediary inner side 112' corresponding to the intermediary outer side 111', and the intermediary inner side 112' defines the intermediary through hole 113', wherein the intermediary outer side 111' of the driving medium 11' corresponds to the supporting base 14', and the intermediary inner side 112' of the driving medium 11' extends toward the central axis 1001' of the camera module 1000' to a suitable position to define the effective edge position 174' of the refractive portion 17'. The driving medium 11' can be driven by the driver 12' to bend and deform in a manner that the relative positions of the outer side 111' of the driving medium 11' and the supporting base 14' remain unchanged and the inner side 112' of the driving medium 11' moves upward or downward. When the driving medium 11' is bent and deformed in a manner that the inner side 112' of the driving medium 11' moves downward, the driving medium 11' uniformly applies pressure to the light-transmitting film 13' in the entire annular direction to cause the light-transmitting film 13' to deform synchronously and with the same amplitude. At this time, the surface shape of the light-incident surface 171' of the refractive portion 17' changes with the light-transmitting film 13'. The film 13' is deformed synchronously and to the same extent as the deformation to present a convex surface shape, thereby realizing the zoom of the camera module 1000'. Accordingly, when the driving medium 11' is bent and deformed in a manner such that the inner side 112' of the driving medium 11' moves upward, the driving medium 11' pulls the light-transmitting film 13' uniformly in the entire annular direction to cause the light-transmitting film 13' to be deformed synchronously and to the same extent. At this time, the surface shape of the light incident surface 171' of the refractive portion 17' is deformed synchronously and to the same extent as the deformation of the light-transmitting film 13' to present a concave surface shape, thereby realizing the zoom of the camera module 1000'. In the above manner, the zoom of the camera module 1000' can be achieved without changing the relative positions of the photosensitive chip 202' and the optical lens 100' of the camera module 1000', thereby effectively reducing the height dimension of the zoom type camera module 1000', and the zoom type camera module 1000' can also be applied to the front side of the electronic device to form a front camera module.

[0132] Continue to refer to the attached Figures 3 to 5BThe optical lens 100' further includes a lens barrel 20', the zoom lens unit 10' is assembled to the lens barrel 20', and the lens barrel 20' is directly assembled to the base 204' of the photosensitive component 200' to maintain the light sensing path of the optical lens 100' and the photosensitive chip 202', wherein the camera module 1000' can adjust the light incident surface 171' of the refractive portion 17' of the zoom lens unit 10' of the optical lens 100' without changing the relative position of the optical lens 100' and the photosensitive chip 202'. The zoom of the camera module 1000' can be achieved in this way. In this way, on the one hand, the camera module 1000' does not need to reserve a travel space for the movement of the optical lens 100' and the height of the camera module 1000' can be reduced. On the other hand, by omitting the zoom motor of the existing camera module, the length and width of the camera module 1000' corresponding to the optical lens 100' can be reduced, so that the camera module 1000' with zoom capability of the present invention is suitable for electronic devices that pursue lightness and thinness or is applied to the front side of electronic devices to form a front camera module.

[0133] Continue to refer to the attached Figures 3 to 5B The optical lens 100' further includes at least one lens 30', wherein the lenses 30' are assembled to the lens barrel 20' to allow the lenses 30' and the zoom lens unit 10' to form a complete optical system.

[0134] It is worth mentioning that the number of the lenses 30' is not limited in the camera module 1000' of the present invention, and is designed according to the application scenario of the camera module 1000'. In addition, the relative positions of the lenses 30' and the zoom lens unit 10' are not limited in the camera module 1000' of the present invention, for example, the lenses 30' can be arranged on one side of the zoom lens unit 10', or the lenses 30' can be arranged on opposite sides of the zoom lens unit 10'.

[0135] It is worth mentioning that although Figures 3 to 5BIn the embodiment of the camera module 1000' shown, the number of the zoom lens unit 10' is one, and the zoom lens unit 10' is matched with a plurality of the lenses 30' to form an optical system, but in some optional examples of the camera module 1000' of the present invention, the number of the zoom lens units 10' may be more than two, and these zoom lens units 10' are matched with at least one lens 30' to form an optical system, or in some other optional examples of the camera module 1000' of the present invention, the optical lens 100' may be configured with a plurality of the zoom lens units 10' without configuring the lenses 30'.

[0136] Preferably, the refractive portion 17' has a relatively high refractive index, and its lowest refractive index is 1.2, so that when the surface angle of the refractive portion 17' is relatively small, the camera module 1000' can also have a relatively large zoom range. That is, for the zoom camera module 1000', the higher the refractive index of the refractive portion 17', the smaller the surface angle of the refractive portion 17' when the same focal length is changed.

[0137] Reference Figures 4 to 5B , let the two relative points of the light incident surface 2141 of the refractive portion 17' corresponding to the inner edge of the driving medium 11' be A and A', wherein the projections of A and A' on the driving medium 11' are located at the inner edge of the driving medium 11', and the line between A and A' intersects with the central axis 1001' of the camera module 1000', let a point on the central axis 1001' of the camera module 1000' be B, wherein the line between points A and B is L1, and the line between points A' and B is L2, and an angle θ is formed between L1 and L2, and taking the refractive index of the refractive portion 17' as 1.55 as an example, the minimum value of the angle θ between L1 and L2 is 7.5°. It can be understood that the lower the refractive index of the refractive portion 214, the greater the minimum value of the angle θ between L1 and L2.

[0138] Preferably, the transmittance of the optical lens 100' is greater than or equal to 90%, and the transmittance of the refraction portion 17' is greater than or equal to 95%. More preferably, the transmittances of the transparent film 13' and the transparent sheet 15' are greater than the transmittance of the refraction portion 17' to ensure the transmittance of the optical lens 100'.

[0139] In a specific example of the camera module 1000' of the present invention, the aperture diameter of the optical lens 100' can be 4 mm, wherein the diameter of the effective light-transmitting area of ​​the refractive portion 17' is at least 4.5 mm, that is, the diameter of the effective light-transmitting area of ​​the refractive portion 17' is at least 0.5 mm larger than the diameter of the aperture, and in order to ensure a smooth optical path, no light-blocking coating or structure may be provided within the aperture of the aperture.

[0140] Further, the light-transmitting sheet 15' of the varifocal lens unit 10' has an injection port 151', and the injection port 151' of the light-transmitting sheet 15' is connected to the retaining space 16' of the light-transmitting sheet 10', wherein a fluid is arranged to be injected into the retaining space 16' of the light-transmitting sheet 10' through the injection port 151' of the light-transmitting sheet 15' to form the refractive portion 17', wherein the light-transmitting lens unit 10' further includes a sealing element 18', wherein the sealing element 18' is formed at the injection port 151' of the light-transmitting sheet 15' to seal the injection port 151' of the light-transmitting sheet 15', thereby allowing the retaining space 16' of the light-transmitting sheet 10' to form a closed space and preventing the fluid used to form the refractive portion 17' from leaking through the injection port 151' of the light-transmitting sheet 15'.

[0141] Reference Figure 6 The present invention further provides an electronic device, which includes an electronic device body 2000' and the camera module 1000' arranged on the rear side of the electronic device body 2000', wherein the electronic device body 2000' can receive and process the electronic device body 2000' after the camera module 1000' receives the light reflected by the object and performs photoelectric conversion to obtain an electrical signal about the object, so as to be subsequently stored in the memory of the electronic device body 2000' and / or displayed on the display screen of the electronic device body 2000'.

[0142] Optionally, in other examples of the electronic device of the present invention, the camera module 1000 ′ may be disposed on the front side of the electronic device body 2000 ′.

[0143] It is worth mentioning that the electronic device may be a smart phone, a tablet computer, a smart watch, etc., and the present invention is not limited in this respect.

[0144] Those skilled in the art will appreciate that the above embodiments are merely examples, wherein features of different embodiments may be combined with each other to obtain implementation methods that are easily conceivable based on the contents disclosed in the present invention but are not explicitly indicated in the drawings.

[0145] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A method for manufacturing a zoom lens unit, characterized in that: The manufacturing method comprises the following steps: A bendable driving medium is provided, wherein the driving medium is ring-shaped; Disposing a driver on the driving medium so as to allow the driving medium to bend and deform by applying force to the driving medium by the driver; Laminating a deformable light-transmitting film to the driving medium so that the driving medium and the light-transmitting film are integrated into one; (a) forming a holding space between an annular supporting base, the deformable light-transmitting film and a light-transmitting sheet; (b) injecting a fluid into the holding space through an injection port connected to the holding space; as well as (c) After the fluid fills the retaining space, the injection port is closed to allow the fluid to form a refractive portion in the retaining space, wherein the light-transmitting film defines and maintains the shape of a light-entering surface of the refractive portion, and the light-transmitting sheet defines and maintains the shape of a light-exiting surface of the refractive portion.

2. The manufacturing method according to claim 1, wherein the injection port is provided on the light-transmitting sheet, wherein in the step (c), a sealing element is formed on the injection port of the light-transmitting sheet and the injection port is sealed by the sealing element. 3 . The manufacturing method according to claim 2 , wherein the injection port is located outside an effective edge position of the refraction portion.

4. The manufacturing method according to claim 1, wherein the step (a) further comprises the steps of: (a.1) the light-transmitting film is arranged on the top side of the base of the support base in such a manner that the light-transmitting film closes the opening of the support base on the top side of the base; (a.2) The light-transmitting sheet is arranged on the bottom side of the support base in such a way that the light-transmitting sheet closes the opening of the support base on the bottom side of the base, thereby forming the holding space between the light-transmitting film, the support base and the light-transmitting sheet.

5. A zoom lens unit, characterized in that: The zoom lens unit has a holding space, and the zoom lens unit further comprises: a light-transmitting sheet; a deformable light-transmitting film; a refraction portion, wherein the refraction portion has a light incident surface and a light emitting surface corresponding to the light incident surface; and an annular support base, an annular support base, wherein the light-transmitting film and the light-transmitting sheet are respectively arranged on opposite sides of the support base to form the holding space between the light-transmitting film, the support base and the light-transmitting sheet, wherein the refraction portion fills and is held in the holding space, wherein the refraction portion is configured to allow the shape of the light incident surface of the refraction portion to be adjusted; It further includes an annular driving medium and a driver, wherein the driving medium has a medium through-hole, the driving medium is attached to the light-transmitting film to combine the two into one, the middle part of the light-transmitting film corresponds to the medium through-hole of the driving medium, and the driver is configured to apply force to the light-transmitting film through the driving medium.

6. The zoom lens unit according to claim 5, wherein the supporting base has a base top side and a base bottom side corresponding to the base top side, the light-transmitting film is arranged on the base top side of the supporting base, and the light-transmitting sheet is arranged on the base bottom side of the supporting base.

7. A zoom lens unit according to claim 5, wherein the supporting base has a base top side and a base bottom side corresponding to the base top side, the light-transmitting film is arranged on the base top side of the supporting base, and the light-transmitting sheet is arranged on the supporting base in a manner that the light-transmitting sheet is surrounded by the supporting base. 8 . The zoom lens unit according to claim 5 , wherein the light-transmitting film defines a surface shape of the light-entering surface of the light-refracting portion, and the surface shape of the light-entering surface of the light-refracting portion is deformed as the light-transmitting film is deformed. 9 . The zoom lens unit according to claim 8 , wherein the light-transmitting sheet defines a surface shape of the light-emitting surface of the refraction portion.

10. The zoom lens unit according to claim 5, wherein the light-transmitting sheet has an injection port, the injection port is connected to the holding space, wherein the zoom lens unit further comprises a sealing element, the sealing element is formed at the injection port of the light-transmitting sheet to seal the injection port. 11 . The zoom lens unit according to claim 10 , wherein the injection port of the light-transmitting sheet is located outside an effective edge region of the refracting portion.

12. The zoom lens unit of claim 5, wherein the actuator is a PZT actuator.

13. A zoom lens unit according to claim 11, wherein the driving medium has an outer side and an inner side corresponding to the outer side, the inner side defines the medium perforation, wherein the outer side of the driving medium corresponds to the supporting base, the inner side of the driving medium extends toward the middle of the light-transmitting film to define the effective edge position of the refractive portion, wherein the driving medium can be driven by the driver to generate bending deformation in such a manner that the relative positions of the outer side of the driving medium and the supporting base remain unchanged and the inner side of the driving medium moves upward or downward.

14. The variable focus lens unit according to any one of claims 5 to 13, wherein the refractive portion is a fluid. 15 . The zoom lens unit according to claim 5 , wherein the light incident surface of the refracting portion is attached to the light-transmitting film, so as to allow the light incident surface of the refracting portion to deform synchronously and in the same magnitude as the light-transmitting film is deformed.

16. The zoom lens unit according to any one of claims 5 to 13, wherein the light-transmitting sheet has a light-transmitting inner wall, the light-emitting surface of the refractive portion is attached to the light-transmitting inner wall of the light-transmitting sheet, and the surface shape of the light-transmitting inner wall of the light-transmitting sheet is a plane, a convex surface or a concave surface.

17. According to any one of claims 5-13, according to the zoom lens unit, when the surface shape of the light incident surface of the refractive portion is deformed along with the deformation of the transparent film, the surface curvature of the light incident surface of the refractive portion is monotonic from the central axis of the refractive portion to the effective edge position of the refractive portion.

18. An optical lens, characterized in that: It comprises at least one zoom lens unit and at least one lens, wherein the zoom lens unit and the lens are arranged at intervals to define the light path of the optical lens, wherein the zoom lens unit is the zoom lens unit according to any one of claims 5-17.

19. A camera module, characterized in that: It comprises a photosensitive component and an optical lens arranged in the photosensitive path of the photosensitive component, wherein the optical lens is the optical lens as claimed in claim 18.

20. The camera module according to claim 19, wherein the optical lens further comprises a lens barrel, the zoom lens unit and the lens are assembled in the lens barrel, wherein the photosensitive component comprises a circuit board, a photosensitive chip and a base, the base has a light window, the photosensitive chip is conductively connected to the circuit board, the base is combined with or mounted on the circuit board so that the photosensitive area of ​​the photosensitive chip corresponds to the light window of the base, wherein the lens barrel is directly assembled to the base to maintain the light sensitive path of the optical lens in the photosensitive component.

21. An electronic device, characterized in that: It comprises an electronic device body and a camera module arranged on the rear side or the front side of the electronic device body, wherein the camera module is the camera module described in claim 19 or 20.

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