Light-folded camera module and electronic device

Abstract

A light-folded camera module (100) having an incident axis (x) and an exit axis (y), and comprising: a mounting bracket (110); a reflective element (120) for folding an imaging light of the light-folded camera module (100) from the incident axis (x) to the exit axis (y), wherein the reflective element (120) is attached to the mounting bracket (110) and the reflective element (120) has an incident surface (121) and an exit surface (122); a first lens arrangement (130); a second lens arrangement (140) for providing an optical refractive power of the light-folded camera module (100) together with the first lens arrangement (130), wherein the first lens arrangement (130),the second lens arrangement (140) and the incident surface (121) of the reflective element (120) are arranged one after the other along the incident axis (x); and an image sensor (150) for receiving the imaging light of the light-folded camera module (100), wherein the image sensor (150) is arranged relative to the exit surface (122) of the reflective element (120) along the exit axis (y); wherein the second lens arrangement (140) is fixed in the mounting bracket (110) so that there is no relative displacement between the second lens arrangement (140) and the reflective element (120). The light-folded camera module (100) further comprises a focus drive device (160), the focus drive device (160) comprising a fixed component (161), a movable component (163), and a spherical element (162), wherein the first lens arrangement (130) is arranged on the movable component (163).the spherical element (162) is arranged between the fixed component (161) and the movable component (163) so that a degree of freedom and a driving force are provided to move the first lens arrangement (130) along a direction parallel to the incident axis (x), wherein a longest adjustment distance range of the first lens arrangement (130) by the focus drive device (160) is Dim, a height of the reflective element (120) along the direction parallel to the incident axis (x) is H, a distance between a center of an image-side surface of the second lens arrangement (140) and a center of the image sensor (150) along the direction parallel to the incident axis (x) is Lf, and the following conditions are met: 0.8 mm <Dim<3,9mm;und0≤Lf<H.,

Description

BACKGROUNDTechnical area

[0001] The present disclosure relates to a light-folded camera module. In particular, the present disclosure relates to a light-folded camera module applicable to portable electronic devices. Description of the state of the art

[0002] In recent years, wearable electronic devices have developed rapidly. For example, smart electronic devices and tablets have entered modern people's lives, and the camera modules built into wearable electronic devices have also developed well. However, with technological advancements, the quality requirements for the camera module are becoming increasingly higher. Therefore, a camera module that can improve image quality must be developed. SUMMARY

[0003] According to one aspect of the present disclosure, a light-folded camera module has an incident axis and an exit axis and includes a mounting bracket, a reflective element, a first lens array, a second lens array, and an image sensor. The reflective element is used to redirect imaging light of the light-folded camera module from the incident axis to the exit axis. The reflective element is mounted on the mounting bracket, and the reflective element includes an incident surface and an exit surface. The second lens array is used to provide an optical power of the light-folded camera module together with the first lens array. The first lens array, the second lens array, and the incident surface of the reflective element are arranged sequentially along the incident axis. The image sensor is used to receive the imaging light of the light-folded camera module.The image sensor is arranged relative to the exit surface of the reflective element along the exit axis. The second lens assembly is fixed in the mounting bracket such that there is no relative displacement between the second lens assembly and the reflective element. The light-folded camera module further comprises a focus drive device, the focus drive device comprising a fixed component, a movable component, and a spherical element. The first lens assembly is arranged on the movable component. The spherical element is arranged between the fixed component and the movable component, providing a degree of freedom and a driving force to move the first lens assembly along a direction parallel to the incident axis.When a longest moving distance range of the first lens array by the focus driving device is Dim, a height of the reflective element along the direction parallel to the incident axis is H, and a distance between a center of an image-side surface of the second lens array and a center of the image sensor along the direction parallel to the incident axis is Lf, the following conditions are satisfied: 0.8 mm < Dim < 3.9 mm; and 0 ≤ Lf < H.

[0004] According to the light-folded camera module of the above aspect, when the longest moving distance range of the first lens array by the focus driving device is Dim, the following condition is satisfied: 0.9 mm < Dim < 3.2 mm.

[0005] According to the light-folded camera module of the above aspect, when the longest moving distance range of the first lens array by the focus driving device is Dim, the following condition is satisfied: 1.0 mm < Dim < 2.6 mm.

[0006] According to the light-folded camera module of the aforementioned aspect, when the perpendicular distance between the center of the image sensor and the incident axis is S, the following condition is satisfied: 4.5 mm < S < 20 mm.

[0007] According to the light-folded camera module of the aforementioned aspect, when the perpendicular distance between the center of the image sensor and the incident axis is S, the following condition is satisfied: 6.0 mm < S < 17 mm.

[0008] According to the light-folded camera module of the aforementioned aspect, the reflective element is made of plastic and has at least one sprue track.

[0009] According to the light-folded camera module of the aforementioned aspect, the reflective element further comprises at least two reflective surfaces.

[0010] According to the light-folded camera module of the aforementioned aspect, a number of the at least two reflecting surfaces is an odd number.

[0011] According to the light-folded camera module of the aforementioned aspect, the first lens arrangement comprises at least one glass lens element and at least one plastic lens element.

[0012] According to the light-folded camera module of the aforementioned aspect, when the distance between the center of an object-side surface of the second lens array and the center of the image sensor along the direction parallel to the incident axis is Ls, and the distance between the center of the object-side surface of the second lens array and a position at which the exit axis passes through the exit surface of the reflective member along the direction parallel to the incident axis is Le, the following condition is satisfied: Le is: 0≤Ls<Le.

[0013] According to the light-folded camera module of the aforementioned aspect, the light-folded camera module further comprises a two-dimensional image stabilization device. The two-dimensional image stabilization device serves to provide a driving force for moving the image sensor in a plane perpendicular to the exit axis.

[0014] According to the light-folded camera module of the aforementioned aspect, the light-folded camera module further comprises a three-dimensional image stabilization device. The three-dimensional image stabilization device serves to provide a driving force for moving the image sensor in a three-dimensional space.

[0015] According to another aspect of the present disclosure, an electronic device includes the light-folded camera module of the aforementioned aspect.

[0016] According to another aspect of the present disclosure, a light-folded camera module has an incident axis and an exit axis and includes a mounting bracket, a reflective element, a first lens array, a second lens array, and an image sensor. The reflective element serves to redirect imaging light of the light-folded camera module from the incident axis to the exit axis. The reflective element is mounted on the mounting bracket, and the reflective element includes an incident surface and an exit surface. The second lens array serves, together with the first lens array, to provide an optical power of the light-folded camera module. The first lens array, the second lens array, and the incident surface of the reflective element are arranged sequentially along the incident axis.The image sensor is used to receive the imaging light of the light-folded camera module. The image sensor is arranged relative to the exit surface of the reflective element along the exit axis. The second lens assembly is fixed in the mounting bracket so that there is no relative displacement between the second lens assembly and the reflective element. The light-folded camera module further comprises a focus drive device, the focus drive device comprising a fixed component, a movable component, and a spherical element. The first lens assembly is arranged on the movable component. The spherical element is arranged between the fixed component and the movable component, providing a degree of freedom and a driving force to move the first lens assembly along a direction parallel to the incident axis.When a perpendicular distance between a center of the image sensor and the incident axis is S, a height of the reflective element along the direction parallel to the incident axis is H, and a distance between a center of an image-side surface of the second lens array and the center of the image sensor along the direction parallel to the incident axis is Lf, the following conditions are satisfied: 4.5 mm < S < 20 mm; and 0 ≤ Lf < H.

[0017] According to the light-folded camera module of the aforementioned aspect, when the perpendicular distance between the center of the image sensor and the incident axis is S, the following condition is satisfied: 6.0 mm < S < 17 mm.

[0018] According to the light-folded camera module of the aforementioned aspect, the reflective element further comprises at least two reflective surfaces.

[0019] According to the light-folded camera module of the aforementioned aspect, a number of the at least two reflecting surfaces is an odd number.

[0020] According to the light-folded camera module of the aforementioned aspect, the first lens arrangement comprises at least one glass lens element and at least one plastic lens element.

[0021] According to the light-folded camera module of the aforementioned aspect, the reflective element is made of plastic and has at least one sprue track.

[0022] According to the light-folded camera module of the aforementioned aspect, the light-folded camera module further comprises a two-dimensional image stabilization device. The two-dimensional image stabilization device serves to provide a driving force for moving the image sensor in a plane perpendicular to the exit axis.

[0023] According to the light-folded camera module of the aforementioned aspect, the light-folded camera module further comprises a three-dimensional image stabilization device. The three-dimensional image stabilization device serves to provide a driving force for moving the image sensor in a three-dimensional space.

[0024] According to another aspect of the present disclosure, a light-folded camera module has an incident axis and an exit axis and includes a mounting bracket, a reflective element, a first lens array, a second lens array, and an image sensor. The reflective element serves to redirect imaging light of the light-folded camera module from the incident axis to the exit axis. The reflective element is mounted on the mounting bracket, and the reflective element includes an incident surface and an exit surface. The second lens array serves to provide, together with the first lens array, an optical power of the light-folded camera module. The first lens array, the second lens array, and the incident surface of the reflective element are arranged sequentially along the incident axis.The image sensor is used to receive the imaging light of the light-folded camera module. The image sensor is arranged relative to the exit surface of the reflective element along the exit axis. The second lens arrangement is fixed in the mounting bracket so that there is no relative displacement between the second lens arrangement and the reflective element. The light-folded camera module further comprises a focus drive device and an image stabilization device, wherein the focus drive device serves to provide a driving force to move the first lens arrangement along a direction parallel to the incident axis, and the image stabilization device serves to provide a further driving force to move the image sensor within a plane perpendicular to the exit axis.When a height of the reflective element along the direction parallel to the incident axis is H, and a distance between a center of an image-side surface of the second lens array and a center of the image sensor along the direction parallel to the incident axis is Lf, the following condition is satisfied: 0≤ Lf < H.

[0025] According to the light-folded camera module of the aforementioned aspect, the reflective element further comprises at least two reflective surfaces.

[0026] According to the light-folded camera module of the aforementioned aspect, a number of the at least two reflecting surfaces is an odd number.

[0027] According to the light-folded camera module of the aforementioned aspect, the reflective element is made of plastic and has at least one sprue track.

[0028] According to the light-folded camera module of the aforementioned aspect, when a distance between a center of an object-side surface of the second lens array and the center of the image sensor along the direction parallel to the incident axis is Ls, and a distance between the center of the object-side surface of the second lens array and a position at which the exit axis passes through the exit surface of the reflective member along the direction parallel to the incident axis is Le, the following condition is satisfied: 0≤Ls<Le.

[0029] According to another aspect of the present disclosure, an electronic device includes the light-folded camera module of the aforementioned aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present disclosure can be better understood by reading the following detailed description of the embodiment, with reference to the accompanying drawings as follows: Fig. 1A is a three-dimensional schematic view of a light-folded camera module according to the first embodiment of the present disclosure. Fig. 1B is an exploded view of the light-folded camera module according to the first embodiment of Fig. 1A. Fig. 1C is an exploded view of the three-dimensional image stabilization device and the image sensor of the light-folded camera module according to the first embodiment of Fig. 1B. Fig. 1D is another exploded view of the light-folded camera module according to the first embodiment of Fig. 1A. Fig.1E is an exploded view of the three-dimensional image stabilization device and the image sensor of the light-folded camera module according to the first embodiment of Fig. 1D. Fig. 1F is a cross-sectional view of the light-folded camera module according to the first embodiment of Fig. 1A. Fig. 1G is a schematic view of the first lens arrangement of the light-folded camera module according to a first example of the first embodiment of Fig. 1F, while the first lens arrangement moves along a direction parallel to the axis of incidence. Fig. 1H is a schematic view of the reflective element of the light-folded camera module according to the first example of the first embodiment of Fig. 1B. Fig.1I is another schematic view of the reflective element of the light-folded camera module according to the first example of the first embodiment of Fig. 1D. Fig. 2 is a schematic view of the first lens arrangement of the light-folded camera module according to a second example of the first embodiment of Fig. 1F, while the first lens arrangement moves along a direction parallel to the axis of incidence. Fig. 3 is a schematic view of the first lens arrangement of the light-folded camera module according to a third example of the first embodiment of Fig. 1F, while the first lens arrangement moves along a direction parallel to the axis of incidence. Fig. 4 is a schematic view of the first lens arrangement of the light-folded camera module according to a fourth example of the first embodiment of Fig.1F, while the first lens arrangement moves along a direction parallel to the axis of incidence. Fig. 5 is a schematic view of the first lens arrangement of the light-folded camera module according to a fifth example of the first embodiment of Fig. 1F, while the first lens arrangement moves along a direction parallel to the axis of incidence. Fig. 6 is a schematic view of the first lens arrangement of the light-folded camera module according to a sixth example of the first embodiment of Fig. 1F, while the first lens arrangement moves along a direction parallel to the axis of incidence. Fig. 7A is a three-dimensional schematic view of a light-folded camera module according to the second embodiment of the present disclosure. Fig.7B is an exploded view of the two-dimensional image stabilization device and the image sensor of the light-folded camera module according to the second embodiment of Fig. 7A. Fig. 7C is another exploded view of the two-dimensional image stabilization device and the image sensor of the light-folded camera module according to the second embodiment of Fig. 7A. Fig. 7D is a schematic view of the reflective element of the light-folded camera module according to the second embodiment of Fig. 7A. Fig. 7E is another schematic view of the reflective element of the light-folded camera module according to the second embodiment of Fig. 7A. Fig. 8A is a schematic view of an electronic device according to the third embodiment of the present disclosure. Fig.Fig. 8B is another schematic view of the electronic device according to the third embodiment of Fig. 8A. Fig. 8C is a schematic view of an image acquired via the ultra-wide angle camera module of the electronic device according to the third embodiment of Fig. 8B was recorded. Fig. 8D is another schematic view of the image acquired via the high-pixel camera module of the electronic device according to the third embodiment of Fig. 8A was recorded. Fig. Fig. 8E is the other schematic view of the image acquired via the telephoto camera module of the electronic device according to the third embodiment of Fig. 8B was recorded. Fig. 9 is a schematic view of an electronic device according to the fourth embodiment of the present disclosure. Fig.10A is a schematic view of a light-folded camera module mounted on a vehicle instrument according to the fifth embodiment of the present disclosure. Fig. 10B is a schematic view of the light-folded camera module used in the vehicle instrument according to the fifth embodiment in Fig. 10A is configured. Fig. 10C is another schematic view of the light-folded camera module used in the vehicle instrument according to the fifth embodiment in Fig. 10A is configured. DETAILED DESCRIPTION

[0031] The present disclosure provides a light-folded camera module having an incident axis and an exit axis, comprising a mounting bracket, a reflective element, a first lens array, a second lens array, and an image sensor. The reflective element is used to redirect imaging light of the light-folded camera module from the incident axis to the exit axis. The reflective element is mounted on the mounting bracket, and the reflective element includes an incident surface and an exit surface. The second lens array, together with the first lens array, provides an optical power of the light-folded camera module. The first lens array, the second lens array, and the incident surface of the reflective element are arranged sequentially along the incident axis. The image sensor is used to receive the imaging light of the light-folded camera module.The image sensor is arranged relative to the exit surface of the reflective element along the exit axis. The second lens array is fixed in the mounting bracket so that there is no relative displacement between the second lens array and the reflective element. The light-folded camera module further comprises a focus drive device, the focus drive device comprising a fixed component, a movable component, and a spherical element. The first lens array is arranged on the movable component. The spherical element is arranged between the fixed component and the movable component, providing a degree of freedom and a driving force to move the first lens array along a direction parallel to the incident axis.When a longest adjustment distance range of the first lens array by the focus drive device is Dim, a height of the reflective element along the direction parallel to the incident axis is H, and a distance between a center of an image-side surface of the second lens array and a center of the image sensor along the direction parallel to the incident axis is Lf, the following conditions are satisfied: 0.8 mm < Dim < 3.9 mm; and 0 ≤ Lf < H. The present disclosure provides a light-folded camera module with a compact size through a mechanical configuration that can fold the entire light path by more than 90 degrees, and the grouped lens arrays can focus within a sufficient space.This is advantageous for reducing the bearing load of the focus drive device, providing a power-saving focus drive device with high control precision, and enabling internal focus lens assemblies to be driven over a long travel range by fixedly positioning the reflective element and part of the lens assemblies and moving only another part of the lens assemblies for focusing. Furthermore, this is advantageous for reducing the physical backfocus range of the light-folded camera module of the present disclosure.

[0032] Specifically, the incident surface and the exit surface of the reflective element may be coplanar, but the present disclosure is not limited thereto. The longest adjustment distance range of the first lens array represents a displacement between a position of the first lens array when the light-folded camera module focuses at infinity and a position of the first lens array when the light-folded camera module focuses at a minimum object distance. The minimum object distance of the light-folded camera module may have other values ​​and depends on an optical specification design value of the light-folded camera module, but the value in the present disclosure is not limited thereto. Furthermore, the measurement of the distance is a non-negative scalar, and the distance between two points may be zero if the measurement positions of the two points are at the same reference position.Therefore, this is advantageous for providing sufficient space for group focusing by reducing the overall height of the light-folded camera module of the present disclosure.

[0033] When the longest adjustment distance range of the first lens array by the focus drive device is Dim, the following condition is met: 0.9 mm < Dim < 3.2 mm. Therefore, this is advantageous for achieving higher image quality in both long-distance and close-up shots.

[0034] In addition, the following condition is met: 1.0 mm < Dim < 2.6 mm. Therefore, this is beneficial for reducing the sensitivity of the assembly tolerance and ensuring high image quality during focusing of the light-folded camera module.

[0035] When the perpendicular distance between the center of the image sensor and the incident axis is S, the following condition is satisfied: 4.5 mm < S < 20 mm. This is beneficial for achieving the optical design of a telephoto lens imaging system in a limited geometric space. Furthermore, the following condition is satisfied: 6.0 mm < S < 17 mm. Therefore, this is beneficial for preventing the image sensor from contacting the lens arrays and focus drive device during assembly, thus increasing assembly efficiency.

[0036] The reflective element is made of plastic and has at least one sprue. This is beneficial for increasing manufacturing precision and mass production efficiency.

[0037] The reflective element comprises at least two reflective surfaces. Therefore, this is advantageous for providing a larger folding angle of the reflective element.

[0038] The number of at least two reflective surfaces is an odd number. Therefore, this is advantageous for providing the reflective element with a compact size. Furthermore, the reflective surface of the reflective element and the incident surface may be coplanar, the reflective surface and the exit surface may be coplanar, or the reflective surface may be an independent surface, but the present disclosure is not limited thereto.

[0039] The first lens arrangement comprises at least one glass lens element and at least one plastic lens element. This is advantageous for increasing environmental tolerance and providing stable optical quality.

[0040] When a distance between the center of an object-side surface of the second lens array and the center of the image sensor along the direction parallel to the incident axis is Ls, and the distance between the center of the object-side surface of the second lens array and a position where the exit axis passes through the exit surface of the reflective element along the direction parallel to the incident axis is Le, the following condition is satisfied: 0≤ Ls < Le. This is therefore advantageous for reducing the physical space of the backfocus-defined telephoto camera module and providing a miniaturized optical system configuration.

[0041] The light-folded camera module can also include a two-dimensional image stabilization device. The two-dimensional image stabilization device serves to provide a driving force to move the image sensor in a plane perpendicular to the exit axis. This is therefore advantageous for achieving optical image stabilization of the light-folded camera module.

[0042] The light-folded camera module may further include a three-dimensional image stabilization device. The three-dimensional image stabilization device serves to provide a driving force to move the image sensor in a three-dimensional space. This promotes optical image stabilization of the light-folded camera module. Specifically, the image stabilization device may provide a biasing force and degrees of freedom for the image sensor via a spherical element or an elastic element, but the present disclosure is not limited thereto.

[0043] The present disclosure provides a light-folded camera module having an incident axis and an exit axis, comprising a mounting bracket, a reflective element, a first lens array, a second lens array, and an image sensor. The reflective element is used to redirect imaging light of the light-folded camera module from the incident axis to the exit axis. The reflective element is mounted on the mounting bracket, and the reflective element includes an incident surface and an exit surface. The second lens array, together with the first lens array, provides an optical power of the light-folded camera module. The first lens array, the second lens array, and the incident surface of the reflective element are arranged sequentially along the incident axis. The image sensor is used to receive the imaging light of the light-folded camera module.The image sensor is arranged relative to the exit surface of the reflective element along the exit axis. The second lens array is fixed in the mounting bracket so that there is no relative displacement between the second lens array and the reflective element. The light-folded camera module further comprises a focus drive device, the focus drive device comprising a fixed component, a movable component, and a spherical element. The first lens array is arranged on the movable component. The spherical element is arranged between the fixed component and the movable component, providing a degree of freedom and a driving force to move the first lens array along a direction parallel to the incident axis.When a perpendicular distance between a center of the image sensor and the incident axis is S, a height of the reflective element along the direction parallel to the incident axis is H, and a distance between a center of an image-side surface of the second lens array and the center of the image sensor along the direction parallel to the incident axis is Lf, the following conditions are satisfied: 4.5 mm < S < 20 mm; and 0 ≤ Lf < H.

[0044] When the perpendicular distance between the center of the image sensor and the incident axis is S, the following condition is satisfied: 6.0 mm < S < 17 mm. Therefore, this is beneficial for preventing the image sensor from colliding with the lens arrays and focus drive device during assembly, thus increasing assembly efficiency.

[0045] The reflective element comprises at least two reflective surfaces. Therefore, this is advantageous for creating a larger folding angle for the reflective element.

[0046] The number of at least two reflective surfaces is an odd number. Therefore, this is advantageous for creating the reflective element with a compact size.

[0047] The first lens assembly comprises at least one glass lens element and at least one plastic lens element. This is advantageous for increasing environmental tolerance and creating stable optical quality.

[0048] The reflective element is made of plastic and has at least one sprue. This is beneficial for increasing manufacturing precision and mass production efficiency.

[0049] The light-folded camera module may also include a two-dimensional image stabilization device. The two-dimensional image stabilization device serves to provide a driving force to move the image sensor in a plane perpendicular to the exit axis. Therefore, this is advantageous for achieving optical image stabilization of the light-folded camera module.

[0050] The light-folded camera module may also include a three-dimensional image stabilization device. The three-dimensional image stabilization device serves to provide a driving force for moving the image sensor in a three-dimensional space. Therefore, this is advantageous for maintaining the optical image stabilization of the light-folded camera module.

[0051] The present disclosure provides a light-folded camera module having an incident axis and an exit axis, comprising a mounting bracket, a reflective element, a first lens array, a second lens array, and an image sensor. The reflective element is for redirecting imaging light of the light-folded camera module from the incident axis to the exit axis. The reflective element is mounted on the mounting bracket, and the reflective element includes an incident surface and an exit surface. The second lens array, together with the first lens array, provides an optical power of the light-folded camera module. The first lens array, the second lens array, and the incident surface of the reflective element are arranged sequentially along the incident axis. The image sensor is for receiving the imaging light of the light-folded camera module.The image sensor is arranged relative to the exit surface of the reflective element along the exit axis. The second lens assembly is fixed in the mounting bracket so that there is no relative displacement between the second lens assembly and the reflective element. The light-folded camera module further comprises a focus drive device and an image stabilization device, wherein the focus drive device serves to provide a drive force to move the first lens assembly along a direction parallel to the incident axis, and the image stabilization device serves to provide a further drive force to move the image sensor within a plane perpendicular to the exit axis.When a height of the reflective element along the direction parallel to the incident axis is H, and a distance between a center of an image-side surface of the second lens array and a center of the image sensor along the direction parallel to the incident axis is Lf, the following condition is satisfied: 0≤ Lf < H.

[0052] The reflective element also includes at least two reflective surfaces. This is advantageous for creating a larger folding angle for the reflective element.

[0053] The number of at least two reflective surfaces is an odd number. Therefore, this is advantageous for providing the reflective element with a compact size.

[0054] The reflective element is made of plastic and has at least one sprue. This is beneficial for increasing manufacturing precision and mass production efficiency.

[0055] When the distance between the center of an object-side surface of the second lens array and the center of the image sensor in the direction parallel to the incident axis is Ls, and the distance between the center of the object-side surface of the second lens array and a position where the exit axis passes through the exit surface of the reflective element in the direction parallel to the incident axis is Le, the following condition is satisfied: 0≤ Ls < Le. Therefore, this is advantageous for reducing the physical space of the backfocus-defined telephoto lens camera module and creating a miniaturized optical system configuration.

[0056] Each of the above-mentioned features of the imaging lens arrangement can be used in various combinations to achieve the corresponding effects.

[0057] The present disclosure provides an electronic device. The electronic device includes the above-mentioned light-folded camera module.

[0058] According to the above embodiment, specific embodiments and examples are provided, which are illustrated by figures. <1. Embodiment>

[0059] See Fig. 1A, Fig. 1B, Fig. 1C, Fig. 1D and Fig. 1E. Fig. 1A is a three-dimensional schematic view of a light-folded camera module 100 according to the first embodiment of the present disclosure. Fig. 1B is an exploded view of the light-folded camera module 100 according to the first embodiment of Fig. 1A. Fig. 1C is an exploded view of the three-dimensional image stabilization device 180 and the image sensor 150 of the light-folded camera module 100 according to the first embodiment of Fig.1B. Fig. 1D is another exploded view of the light-folded camera module 100 according to the first embodiment of Fig. 1A. Fig. 1E is an exploded view of the three-dimensional image stabilization device 180 and the image sensor 150 of the light-folded camera module 100 according to the first embodiment of Fig. 1D. The light-folded camera module 100 has an incident axis x and an exit axis y and includes a mounting bracket 110, a reflective element 120, a first lens array 130, a second lens array 140, an image sensor 150, a focus drive device 160, an array fixing element 170, and a three-dimensional image stabilization device 180. The reflective element 120 serves to redirect an imaging light of the light-folded camera module 100 from the incident axis x to the exit axis y.

[0060] The reflective element 120 is attached to the mounting bracket 110, and the reflective element 120 includes an incident surface 121 and an exit surface 122. The second lens arrangement 140, together with the first lens arrangement 130, serves to provide an optical refractive power of the light-folded camera module 100. The first lens arrangement 130, the second lens arrangement 140, and the incident surface 121 of the reflective element 120 are arranged sequentially along the incident axis x. The image sensor 150 serves to receive the imaging light of the light-folded camera module 100. The image sensor 150 is arranged relative to the exit surface 122 of the reflective element 120 along the exit axis y. The second lens arrangement 140 is fixed in the mounting bracket 110 so that there is no relative displacement between the second lens arrangement 140 and the reflective element 120.The focus drive device 160 includes a fixed component 161, a spherical element 162, and a movable component 163. The first lens array 130 is disposed on the movable component 163. The spherical element 162 is disposed between the fixed component 161 and the movable component 163, providing a degree of freedom and a driving force to move the first lens array 130 along a direction parallel to the incident axis x.

[0061] Thus, in the first embodiment of the present disclosure, it is advantageous for the array lens arrays of the light-folded camera module 100 to focus within a sufficient space by folding the entire light path by more than 90 degrees. Furthermore, this is advantageous for reducing the bearing load of the focus drive device 160, providing a power-saving focus drive device 160 with high control precision, and enabling the inner focus lens arrays to be driven over a long travel distance by fixedly positioning the reflective element 120 and a portion of the lens arrays (i.e., the second lens array 140) and moving only another portion of the lens arrays (i.e., the second lens array 130) for focusing.

[0062] In Fig. 1B to Fig.1E, the three-dimensional image stabilization device 180 serves to provide a driving force for moving the image sensor 150 in a three-dimensional space. Specifically, the three-dimensional image stabilization device 180 includes a base 181, a first directional guide member 182, a second directional guide member 183, a third directional guide member 184, and a plurality of spherical elements 185. The first directional guide member 182, the second directional guide member 183, and the third directional guide member 184 are sequentially stacked in the base 181, and the image sensor 150 is connected to the third directional guide member 184. The spherical elements 185 are disposed in the base 181, the first directional guide member 182, the second directional guide member 183, and the third directional guide member 184, respectively.The third directional guide element 184 is arranged so that the image sensor 150 can be displaced in three-dimensional space, but the present disclosure is not limited thereto. In other embodiments, the spherical elements 185 can be replaced with an elastic element to provide the biasing force and degrees of freedom for the image sensor 150, but the present disclosure is not limited thereto.

[0063] See Fig. 1F and Fig. 1G. Fig. 1F is a cross-sectional view of the light-folded camera module 100 according to the first embodiment of Fig. 1A. Fig. 1G is a schematic view of the first lens arrangement 130 of the light-folded camera module 100 according to a first example of the first embodiment of Fig. 1F, while the first lens arrangement 130 moves along a direction parallel to the incident axis x. In Fig.1F, the first lens assembly 130 may include two lens elements 131, 132. The two lens elements 131, 132 include a glass lens element and a plastic lens element. This increases environmental tolerance and ensures stable optical quality. Furthermore, the assembly fixing member 170 positions the reflective element 120 in the mounting bracket 110 along a direction toward the mounting bracket 110, and two side walls 171 of the assembly fixing member 170 are located between the mounting bracket 110 and the reflective element 120. Therefore, it is advantageous for increasing assembly stability.

[0064] An upper part of Fig. 1G shows a positional relationship between the first lens array 130 and the focus drive device 160 when the light-folded camera module 100 focuses to infinity. A lower part of Fig.1G shows a positional relationship between the first lens array 130 and the focus drive device 160 when the light-folded camera module 100 focuses at a minimum object distance. The largest adjustment distance range of the first lens array 130 by the focus drive device 160 is Dim. A height of the reflective element 120 along the direction parallel to the incident axis x is H. A distance between a center of an image-side surface of the second lens array 140 and a center of the image sensor 150 along the direction parallel to the incident axis x is Lf.

[0065] The longest adjustment distance range Dim of the first lens array 130 represents a displacement between a position of the first lens array 130 when the light-folded camera module 100 focuses at infinity and a position of the first lens array 130 when the light-folded camera module 100 focuses at a minimum object distance. The minimum object distance of the light-folded camera module 100 may represent other values ​​and depends on an optical specification design value of the light-folded camera module 100, and the value in the present disclosure is not limited thereto. Furthermore, the measurement of the distance is a non-negative scalar, and the distance between two points may be zero if the measurement positions of the two points are at the same reference position.

[0066] A distance between the first lens array 130 and the second lens array 140 when the light-folded camera module 100 focuses at infinity is shorter than a distance between the first lens array 130 and the second lens array 140 when the light-folded camera module 100 focuses at the minimum object distance. Therefore, this is advantageous for creating sufficient space for group focusing by reducing the overall height of the light-folded camera module 100 of the present disclosure.

[0067] A perpendicular distance between the center of the image sensor 150 and the incident axis x is S. Therefore, this is advantageous to achieve an optical design project of the telephoto lens imaging system in a limited geometric space.

[0068] A distance between the center of an object-side surface of the second lens array 140 and the center of the image sensor 150 in the direction parallel to the incident axis x is Ls. A distance between a center of an object-side surface of the second lens array 140 and a position where the exit axis x passes through the exit surface 122 of the reflective element 120 in the direction parallel to the incident axis x is Le. Therefore, this is advantageous for reducing the physical space of the telephoto lens-folded camera module 100 with defined back focus and for creating a miniaturized optical system configuration.

[0069] In Fig.1G in the first example of the first embodiment, when the height of the reflective element 120 along the direction parallel to the incident axis x is H, the longest adjustment distance range of the first lens array 130 from the focus drive device 160 is Dim, the distance between the center of the image-side surface of the second lens array 140 and the center of the image sensor 150 along the direction parallel to the incident axis x is Lf, the distance between the center of the object-side surface of the second lens array 140 and the position at which the exit axis x passes through the exit surface 122 of the reflective element 120 along the direction parallel to the incident axis x is Le, the distance between the center of the object-side surface of the second lens array 140 and the center of the image sensor 150 along the direction parallel to the incident axis x is Ls,and the perpendicular distance between the center of the image sensor 150 and the incident axis x S, the values ​​of which are listed in Table 1 as follows. Table 1, 1. Example of the 1st embodiment Height (mm) 2.7 Dimensions (mm) 1.61 Length (mm) 0.492 Le (mm) 3.12 Ls (mm) 2 S (mm) 8.291

[0070] See Fig. 1H and Fig. 1I. Fig. 1H is a schematic view of the reflective element 120 of the light-folded camera module 100 according to the first example of the first embodiment of Fig. 1B. Fig. 1I is another schematic view of the reflective element 120 of the light-folded camera module 100 according to the first example of the first embodiment of Fig.1D. In detail, the incident surface 121 and the exit surface 122 of the reflective element 120 may be coplanar, but the present disclosure is not limited thereto. The reflective element 120 is made of plastic and has at least one gate 126. Furthermore, the reflective element 120 includes a plurality of reflective surfaces 123, 124, 125. The imaging light is sequentially redirected by the reflective surfaces 123, 125, 124 and reaches the image sensor 150. The number of reflective surfaces 123, 124, 125 is an odd number. Furthermore, the reflective surface 125 of the reflective element 120 and the incident surface 121 may be coplanar, the reflective surface 125 and the exit surface 122 may be coplanar, or the reflective surface 125 may be an independent surface, but the present disclosure is not limited thereto.

[0071] See Fig. 2. Fig. 2 is a schematic view of the first lens arrangement 130 of the light-folded camera module 100 according to a second example of the first embodiment of Fig. 1F, while the first lens arrangement 130 moves along a direction parallel to the incident axis x. In Fig. 2, the difference between the second example of the first embodiment and the first example of the first embodiment of the present disclosure is the shape of the reflective element 120 in the first example and the shape of the reflective element 120a in the second example. Other structures and features may be the same or similar to those in the first example of the first embodiment and will not be described again. Specifically, the reflective element 120a includes two reflective surfaces 123, 124. The imaging light is folded by the reflective surfaces 123, 124 in sequence and reaches the image sensor 150.

[0072] An upper part of Fig. 2 shows a positional relationship between the first lens array 130 and the second lens array 140 when the light-folded camera module 100 focuses at infinity. The lower part of Fig. 2 shows a positional relationship between the first lens array 130 and the second lens array 140 when the light-folded camera module 100 focuses on a minimum object distance. In Fig.2 In the second example of the first embodiment, a height of the reflective element 120a along the direction parallel to the incident axis x is H, a longest adjustment distance range of the first lens array 130 by the focus control device 160 is Dim, a distance between a center of an image-side surface of the second lens array 140 and a center of the image sensor 150 along the direction parallel to the incident axis x is Lf, a distance between a center of an object-side surface of the second lens array 140 and a position at which the exit axis x passes through the exit surface 122 of the reflective element 120a along the direction parallel to the incident axis x is Le, a distance between the center of the object-side surface of the second lens array 140 and the center of the image sensor 150 along the direction parallel to the incident axis x is Ls,a perpendicular distance between the center of the image sensor 150 and the incident axis x is S, the values ​​of which are listed in Table 2 as follows., Table 2, 2nd example of the 1st embodiment Height (mm) 4.753 Dimensions (mm) 1.53 Length (mm) 0.433 Le (mm) 2.8 Ls (mm) 1.825 S (mm) 8.291

[0073] See Fig. 3. Fig. 3 is a schematic view of the first lens arrangement 130 of the light-folded camera module 100 according to a third example of the first embodiment of Fig. 1F, while the first lens arrangement 130 moves along a direction parallel to the incident axis x. In Fig.In Figure 3, the difference between the third example of the first embodiment and the first example of the first embodiment of the present disclosure is the shape of the reflective element 120 in the first example and the shape of the reflective element 120b in the third example. Other structures and features may be the same or similar to the first example and will not be explained again. Specifically, the reflective element 120b includes two reflective surfaces 123, 124. The imaging light is folded successively by the reflective surfaces 123, 124 and reaches the image sensor 150.

[0074] An upper part of Fig. 3 shows a positional relationship between the first lens array 130 and the second lens array 140 when the light-folded camera module 100 focuses at infinity. The lower part of Fig.3 shows a positional relationship between the first lens array 130 and the second lens array 140 when the light-folded camera module 100 focuses on a minimum object distance. In Fig.3, in the third example of the first embodiment, a height of the reflective element 120b along the direction parallel to the incident axis x is H, a longest adjustment distance range of the first lens array 130 by the focus drive device 160 is Dim, a distance between a center of an image-side surface of the second lens array 140 and a center of the image sensor 150 along the direction parallel to the incident axis x is Lf, a distance between a center of an object-side surface of the second lens array 140 and a position at which the exit axis x passes through the exit surface 122 of the reflective element 120b along the direction parallel to the incident axis x is Le, a distance between the center of the object-side surface of the lens array 140 and the center of the image sensor 150 along the direction parallel to the incident axis x is Ls,a perpendicular distance between the center of the image sensor 150 and the incident axis x is S, the values ​​of which are listed in Table 3 as follows. Table 3, 3. Example of the 1st embodiment Height (mm) 6.093 Dimensions (mm) 1.05 Length (mm) 1.955 Le (mm) 0.199 Ls (mm) 0.224 S (mm) 7.009

[0075] See Fig. 4. Fig. 4 is a schematic view of the first lens arrangement 130 of the light-folded camera module 100 according to a fourth example of the first embodiment of Fig. 1F, while the first lens arrangement 130 moves along a direction parallel to the incident axis x. In Fig.4, the difference between the fourth example of the first embodiment and the first example of the first embodiment of the present disclosure is the shape of the reflective element 120 in the first example and the shape of the reflective element 120c in the fourth example. Other structures and features may be the same or similar to the first example and will not be described again. Specifically, the reflective element 120c includes two reflective surfaces 123, 124. The imaging light is sequentially redirected by the reflective surfaces 123, 124 and reaches the image sensor 150.

[0076] An upper part of Fig. 4 shows a positional relationship between the first lens array 130 and the second lens array 140 when the light-folded camera module 100 focuses at infinity. The lower part of Fig.4 shows a positional relationship between the first lens array 130 and the second lens array 140 when the light-folded camera module 100 focuses on a minimum object distance. In Fig.4, in the fourth example of the first embodiment, a height of the reflective element 120c along the direction parallel to the incident axis x is H, a longest driving distance range of the first lens array 130 from the focus driving device 160 is Dim, a distance between a center of an image-side surface of the second lens array 140 and a center of the image sensor 150 along the direction parallel to the incident axis x is Lf, a distance between a center of an object-side surface of the second lens array 140 and a position at which the exit axis x passes through the exit surface 122 of the reflective element 120c along the direction parallel to the incident axis x is Le, a distance between the center of the object-side surface of the second lens array 140 and the center of the image sensor 150 along the direction parallel to the incident axis x is Ls,a perpendicular distance between the center of the image sensor 150 and the incident axis x is S, the values ​​of which are listed in Table 4 as follows. Table 4, 4. Example of the 1st embodiment Height (mm) 6.412 Dimensions (mm) 1.75 Length (mm) 0.955 Le (mm) 2.194 Ls (mm) 1.303 S (mm) 8.33

[0077] See Fig. 5. Fig. 5 is a schematic view of the first lens arrangement 130 of the light-folded camera module 100 according to a fifth example of the first embodiment of Fig. 1F, while the first lens arrangement 130 moves along a direction parallel to the incident axis x. In Fig.In Figure 5, the difference between the fifth example of the first embodiment and the first example of the first embodiment of the present disclosure is the shape of the reflective element 120 in the first example and the shape of the reflective element 120d in the fifth example. Other structures and features may be the same or similar to those in the first example and will not be described again. Specifically, the reflective element 120d includes three reflective surfaces 123, 124, 125. The imaging light is sequentially redirected by the reflective surfaces 123, 125, 124 and reaches the image sensor 150.

[0078] An upper part of Fig. 5 shows a positional relationship between the first lens array 130 and the second lens array 140 when the light-folded camera module 100 focuses at infinity. The lower part of Fig.5 shows a positional relationship between the first lens array 130 and the second lens array 140 when the light-folded camera module 100 focuses on a minimum object distance. In Fig.5, in the fifth example of the first embodiment, a height of the reflective element 120d along the direction parallel to the incident axis x is H, a longest adjustment distance range of the first lens array 130 by the focus drive device 160 is Dim, a distance between a center of an image-side surface of the second lens array 140 and a center of the image sensor 150 along the direction parallel to the incident axis x is Lf, a distance between a center of an object-side surface of the second lens array 140 and a position at which the exit axis x passes through the exit surface 122 of the reflective element 120d along the direction parallel to the incident axis x is Le, a distance between the center of the object-side surface of the second lens array 140 and the center of the image sensor 150 along the direction parallel to the incident axis x is Ls,a perpendicular distance between the center of the image sensor 150 and the incident axis x is S, the values ​​of which are listed in Table 5 as follows. Table 5, 5. Example of the 1st embodiment Height (mm) 4.593 Dimensions (mm) 2.18 Length (mm) 2.498 Le (mm) 5.874 Ls (mm) 4.99 S (mm) 8.047

[0079] See Fig. 6. Fig. 6 is a schematic view of the first lens arrangement 130 of the light-folded camera module 100 according to a sixth example of the first embodiment of Fig. 1F, while the first lens arrangement 130 moves along a direction parallel to the incident axis x. In Fig.In Figure 6, the difference between the sixth example of the first embodiment and the first example of the first embodiment of the present disclosure is the shape of the reflective element 120 in the first example and the shape of the reflective element 120e in the sixth example. Other structures and features may be the same or similar to the first example and will not be explained again. Specifically, the reflective element 120e includes five reflective surfaces 123, 124, 125, 127, 128. The imaging light is sequentially redirected by the reflective surfaces 123, 125, 127, 128, 124 and reaches the image sensor 150.

[0080] An upper part of Fig. 6 shows a positional relationship between the first lens array 130 and the second lens array 140 when the light-folded camera module 100 focuses at infinity. The lower part of Fig.6 shows a positional relationship between the first lens array 130 and the second lens array 140 when the light-folded camera module 100 focuses on a minimum object distance. In Fig.6, in the fifth example of the first embodiment, a height of the reflective element 120e along the direction parallel to the incident axis x is H, a longest driving distance range of the first lens array 130 from the focus driving device 160 is Dim, a distance between a center of an image-side surface of the second lens array 140 and a center of the image sensor 150 along the direction parallel to the incident axis x is Lf, a distance between a center of an object-side surface of the second lens array 140 and a position at which the exit axis x passes through the exit surface 122 of the reflective element 120e along the direction parallel to the incident axis x is Le, a distance between the center of the object-side surface of the second lens array 140 and the center of the image sensor 150 along the direction parallel to the incident axis x is Ls,a perpendicular distance between the center of the image sensor 150 and the incident axis x is S, the values ​​of which are listed in Table 6 as follows., Table 6, 6. Example of the 1st embodiment Height (mm) 2.724 Dimensions (mm) 1.95 Length (mm) 0.648 Le (mm) 2.582 Ls (mm) 1.531 S (mm) 11.894 <2nd embodiment>

[0081] See Fig. 7A to Fig. 7E. Fig. 7A is a three-dimensional schematic view of a light-folded camera module 200 according to the second embodiment of the present disclosure. Fig. 7B is an exploded view of the two-dimensional image stabilization device 280 and the image sensor 250 of the light-folded camera module 200 according to the second embodiment of Fig. 7A. Fig. 7C is another exploded view of the two-dimensional image stabilization device 280 and the image sensor 250 of the light-folded camera module 200 according to the second embodiment of Fig. 7A. Fig. 7D is a schematic view of the reflective element 220 of the light-folded camera module 200 according to the second embodiment of Fig. 7A. Fig. 7E is another schematic view of the reflective element 220 of the light-folded camera module 200 according to the second embodiment of Fig. 7A. The light-folded camera module 200 has an incident axis and an exit axis and includes a mounting bracket 210, a reflective element 220, a first lens array 230, a second lens array 240, an image sensor 250, a focus drive device 260, and a two-dimensional image stabilization device 280. The reflective element 220 serves to fold an imaging light of the light-folded camera module 200 from the incident axis to the exit axis.

[0082] The reflective element 220 is attached to the mounting bracket 210, and the reflective element 220 includes an incident surface 221 and an exit surface 222. The second lens array 240, together with the first lens array 230, serves to provide an optical refractive power of the light-folded camera module 200. The first lens array 230, the second lens array 240, and the incident surface 221 of the reflective element 220 are arranged sequentially along the incident axis. The image sensor 250 serves to receive the imaging light of the light-folded camera module 200. The image sensor 250 is arranged relative to the exit surface 222 of the reflective element 220 along the exit axis. The second lens array 240 is fixed in the mounting bracket 210 so that there is no relative displacement between the second lens array 240 and the reflective element 220.The focus drive device 260 includes a fixed component, a movable component, and a spherical element. The first lens assembly 230 is arranged on the movable component. The spherical element is arranged between the fixed component and the movable component, providing a degree of freedom and a driving force to move the first lens assembly 230 along a direction parallel to the incident axis.

[0083] In Fig. 7B and Fig. 7C, the two-dimensional image stabilization device 280 includes a base 281 and a guide element 282. The guide element 282 is arranged in the base 281 so that the image sensor 250 can be displaced within the two-dimensional space, but the present disclosure is not limited thereto. The two-dimensional image stabilization device 280 serves to provide a driving force 250 to move the image sensor in a plane perpendicular to the exit axis. Thus, this is advantageous for achieving optical image stabilization of the light-folded camera module 200.

[0084] In Fig. 7D and Fig. 7E, the incident surface 221 and the exit surface 222 of the reflective element 220 may be coplanar, the reflective element 220 may be made of plastic, and may have a gate 228, but the present disclosure is not limited thereto. Furthermore, the reflective element 220 includes a plurality of reflective surfaces 223, 224, 225, 226, 227. <3rd embodiment>

[0085] Fig. 8A is a schematic view of an electronic device 10 according to the third embodiment of the present disclosure. Fig. 8B is another schematic view of the electronic device 10 according to the third embodiment of Fig. 8A. As in Fig. 8A and Fig. As shown in FIG. 8B, the electronic device 10 is a smartphone. The electronic device 10 includes a plurality of camera modules and a user interface 11. Furthermore, the camera modules are an ultra-wide-angle camera module 12, telephoto camera modules 13, 14, and a high-pixel camera module 15, and the user interface 11 is a touchscreen, but the present disclosure is not limited thereto. In particular, each of the camera modules may be one of the light-folding camera modules of the first to second embodiments, but the present disclosure is not limited thereto.

[0086] The user enters a recording mode via the user interface 11. The user interface 11 serves to display the screen, and the recording angle can be manually adjusted to switch between different camera modules. At this moment, the camera modules collect imaging light on the respective image sensor and output electronic signals associated with images to an image signal processor (ISP) 16.

[0087] As in Fig. 8B, the electronic device 10 may further include an optical anti-shake mechanism (figure omitted) according to the camera specifications of the electronic device 10. Furthermore, the electronic device 10 may further include at least one focus assist module (figure omitted) and at least one sensor component (figure omitted). The focus assist module may be a flash module 17, an infrared ranging component, a laser focus module, etc. The flash module 17 serves to compensate for color temperature. The sensor component may have functions for detecting physical impulses and kinetic energies, such as an accelerator, a gyroscope, and a Hall effect element, to detect shaking or vibrations from the user's hands or the external environment.In this way, the autofocus function and the optical anti-shake mechanism of the imaging lens assembly disposed on the electronic device 10 can function to obtain great image quality and facilitate the electronic device 10 according to the present disclosure to have a multi-mode shooting function, such as taking optimized selfies, High Dynamic Range (HDR) under a low light source, 4K resolution recording, etc. In addition, the user can visually view the captured image of the camera through the user interface 11 and manually operate the view search area on the user interface 11 to achieve the what you see is what you get autofocus function.

[0088] Furthermore, the camera modules, the optical anti-shake mechanism, the sensor component, and the focus assist module can be arranged on a flexible printed circuit board (FPC) (figure omitted) and electrically connected to the image signal processor 16, etc., via a connector (figure omitted) to perform an imaging process. In recent electronic devices, such as smartphones, the trend is toward thin and light. The imaging lens assembly and related elements are arranged on an FPC, and the circuits are incorporated into a motherboard of an electronic device via a connector.This allows for meeting the mechanical design requirements of a limited internal space of the electronic device and for circuit layout requirements, achieving greater flexibility. It is also advantageous for achieving flexible control of the autofocus function of the camera modules via a touchscreen of the electronic device. In the third embodiment, the electronic device 10 may include a plurality of sensor components and a plurality of focus assist modules. The sensor components and the focus assist modules are arranged on one FPC and at least one other FPC (figure omitted) and are electrically connected to the image signal processor 16, etc., via a corresponding connector to perform an imaging process.In other embodiments (figure omitted), the sensor components and auxiliary optical elements may be arranged on a main board of an electronic device or a board of other shape according to a mechanical design and a circuit layout requirement.

[0089] Additionally, the electronic device 10 may include, but is not limited to, a display, a controller, a storage device, random access memory (RAM), read-only memory (ROM), or a combination thereof.

[0090] Fig. 8C is a schematic view of an image acquired via the ultra-wide angle camera module 12 of the electronic device 10 according to the third embodiment of Fig. 8B was recorded. As in Fig. As shown in Fig. 8C, the ultra-wide angle camera module 12 having a multi-view function can capture a wider range image.

[0091] Fig. Figure 8D is another schematic view of the image acquired via the high-pixel camera module 15 of the electronic device 10 according to the third embodiment of Fig. 8A was recorded. As in Fig. As shown in Fig. 8D, the high-pixel camera module 15, which has a high-resolution and low-distortion function, can capture an image with a specific area and a high number of pixels.

[0092] Fig. Fig. 8E is the other schematic view of the image acquired via the telephoto camera module 13 of the electronic device 10 according to the third embodiment of Fig. 8B was recorded. As in Fig. As shown in Fig. 8E, a faraway image can be captured and magnified to a high magnification via the telephoto camera module 13 having a high magnification function.

[0093] As in Fig. 8C to Fig. As shown in Figure 8E, a zoom function of the electronic device 10 can be achieved when an image is captured via different camera modules with different focal lengths and processed via an image processing technology. <4th Embodiment>

[0094] Fig. 9 is a schematic view of an electronic device 20 according to the fourth embodiment of the present disclosure. As shown in Fig. 9, the electronic device 20 is a smartphone. The electronic device 20 includes a plurality of camera modules. Furthermore, the camera modules are two ultra-wide-angle camera modules 21, 22, two wide-angle camera modules 23, 24, four telephoto camera modules 25, 26, 27, 28, and one time-of-flight (TOF) module 29. The time-of-flight (TOF) module 29 may be other types of camera modules that are not limited to the present arrangement. In particular, each of the camera modules may be any of the camera modules of the first to third embodiments, but the present disclosure is not limited thereto.

[0095] Furthermore, the telephoto camera modules 27, 28 are configured to fold the light, but the present disclosure is not limited thereto.

[0096] According to the camera specifications of the electronic device 20, the electronic device 20 may further include an optical anti-shake mechanism (figure omitted). Furthermore, the electronic device 20 may include at least one focus assist module (figure omitted) and at least one sensing component (figure omitted). The focus assist module may be a flash module 20a, an infrared ranging element, a laser focus module, etc. The flash module 20a serves to compensate for color temperature. The sensing component may have functions for sensing physical impulses and kinetic energies, such as an accelerator, a gyroscope, and a Hall effect element, to detect vibrations or shocks from the user's hands or the external environment.Thus, the autofocus function and the optical anti-shake mechanism of the camera module disposed on the electronic device 20 can function to maintain high image quality and facilitate the electronic device 20 according to the present disclosure to have a multi-mode recording function, such as taking optimized selfies, high dynamic range (HDR) with a weak light source, 4K resolution recording, etc.

[0097] Furthermore, all other structures and arrangements according to the fourth embodiment are the same as the structures and arrangements according to the third embodiment and will not be described again here. <5th Embodiment>

[0098] Fig. 10A is a schematic view of a light-folded camera module 31 mounted on a vehicle instrument 30 according to the fifth embodiment of the present disclosure. Fig. Fig. 10B is a schematic view of the light-folded camera module 31 used in the vehicle instrument 30 according to the fifth embodiment in Fig. 10A is arranged. Fig. 10C is another schematic view of the vehicle instrument 30 according to the fifth embodiment in Fig. 10A arranged light-folded camera module 31. In the Fig. 10A to 10C, the vehicle instrument 30 includes a plurality of light-folded camera modules 31. According to the fifth embodiment, a number of the light-folded camera modules 31 is six, and the light-folded camera modules 31 may be the light-folded camera modules according to any one of the above-mentioned first to fourth embodiments, but the present disclosure is not limited thereto.

[0099] In the Fig. 10A and Fig. 10B, the light-folded camera modules 31 are automotive camera modules. Two of the light-folded camera modules 31 are located under rearview mirrors on the left and right sides, respectively. The aforementioned light-folded camera modules 31 are configured to capture image information of a viewing angle θ. Specifically, the viewing angle θ can satisfy the following condition: 40 degrees < θ < 90 degrees. Therefore, image information can be captured in the areas of two lanes on the left and right sides.

[0100] In Fig. 10B, two more of the light-folded camera modules 31 can be arranged inside the vehicle instrument panel 30. Specifically, the two aforementioned light-folded camera modules 31 are arranged at a location near the rearview mirror inside the vehicle instrument panel 30 and at a location near the rear window of the vehicle, respectively. Furthermore, the light-folded camera modules 31 can also be arranged on the rearview mirrors of the vehicle instrument panel 30 on the left and right sides, respectively, excluding the mirror surface, but the present disclosure is not limited thereto.

[0101] In Fig.10C, two more light-folded camera modules 31 can be arranged at a front end of the vehicle instrument 30 and at a rear end of the vehicle instrument 30, respectively. By arranging the light-folded camera modules 31 at the front end and the rear end of the vehicle instrument 30 and under the rearview mirror on the left side of the vehicle instrument 30 and the right side of the vehicle instrument 30, it is advantageous for drivers to obtain the outside information in addition to the driver's seat, such as the outside information I1, I2, I3, I4, but the present disclosure is not limited to this. Therefore, more viewing angles can be provided to reduce the blind spot, so that driving safety can be improved.Furthermore, the traffic information can be recognized outside the vehicle instrument 30 by arranging the light-folded camera modules 31 on the periphery of the vehicle instrument 30, so that the automatic driving support function can be achieved.

Claims

[1] A light-folded camera module (100) having an incident axis (x) and an exit axis (y), and comprising: a mounting bracket (110); a reflective element (120) for folding an imaging light of the light-folded camera module (100) from the incident axis (x) to the exit axis (y), wherein the reflective element (120) is attached to the mounting bracket (110) and the reflective element (120) has an incident surface (121) and an exit surface (122); a first lens arrangement (130); a second lens arrangement (140) for providing an optical refractive power of the light-folded camera module (100) together with the first lens arrangement (130), wherein the first lens arrangement (130), the second lens arrangement (140) and the incident surface (121) of the reflective element (120) are arranged one after the other along the incident axis (x); and an image sensor (150) for receiving the imaging light of the light-folded camera module (100), wherein the image sensor (150) is arranged relative to the exit surface (122) of the reflective element (120) along the exit axis (y); wherein the second lens arrangement (140) is fixed in the mounting bracket (110) such that there is no relative displacement between the second lens arrangement (140) and the reflective element (120), the light-folded camera module (100) further comprises a focus drive device (160), the focus drive device (160) comprises a fixed component (161), a movable component (163), and a spherical element (162), wherein the first lens arrangement (130) is arranged on the movable component (163), the spherical element (162) is arranged between the fixed component (161) and the movable component (163) such that a degree of freedom and a driving force are provided to move the first lens arrangement (130) along a direction parallel to the incident axis (x), wherein a longest adjustment distance range of the first lens arrangement (130) by the focus drive device (160) is Dim, a height of the reflective element (120) along the direction parallel to the incident axis (x) is H, a distance between a center of an image-side surface of the second lens arrangement (140) and a center of the image sensor (150) along the direction parallel to the incident axis (x) is Lf, and the following conditions are met: 0.8 mm <Dim<3,9 mm; and 0≤Lf <H. [2] The light-folded camera module (100) according to claim 1, wherein the longest adjustment distance range of the first lens array (130) by the focus drive device (160) is Dim and the following condition is satisfied: 0.9 mm <Dim<3,2 mm. [3] The light-folded camera module (100) according to claim 2, wherein the longest adjustment distance range of the first lens array (130) by the focus drive device (160) is Dim and the following condition is satisfied: 1.0 mm <Dim<2,6 mm. [4] The light-folded camera module (100) according to claim 1, wherein a perpendicular distance between the center of the image sensor (150) and the incident axis (x) is S and the following condition is satisfied: 4.5 mm <S<20 mm. [5] Light-folded camera module (100) according to claim 4, wherein the vertical distance between the center of the image sensor (150) and the incident axis (x) is S and the following condition is met: 6.0 mm <S<17 mm. [6] The light-folded camera module (100) of claim 1, wherein the reflective element (120) is made of plastic and has at least one sprue track (126). [7] The light-folded camera module (100) of claim 1, wherein the reflective element (120) further comprises at least two reflective surfaces (123, 124, 125). [8] The light-folded camera module (100) according to claim 7, wherein a number of the at least two reflective surfaces (123, 124, 125) is an odd number. [9] The light-folded camera module (100) of claim 1, wherein the first lens assembly (130) comprises at least one glass lens element and at least one plastic lens element. [10] The light-folded camera module (100) according to claim 1, wherein a distance between a center of an object-side surface of the second lens array (140) and the center of the image sensor (150) along the direction parallel to the incident axis (x) is Ls, a distance between the center of the object-side surface of the second lens array (140) and a position at which the exit axis (y) passes through the exit surface (122) of the reflective element (120) along the direction parallel to the incident axis (x) is Le, and the following condition is satisfied: 0≤Ls <Le. [11] The light-folded camera module (200) of claim 1, further comprising: a two-dimensional image stabilization device (280) for providing a driving force to move the image sensor (250) in a plane perpendicular to the exit axis (y). [12] The light-folded camera module (100) of claim 1, further comprising: a three-dimensional image stabilization device (180) for providing a driving force to move the image sensor (150) in a three-dimensional space. [13] An electronic device (10) comprising: the light-folded camera module (100) of claim 1. [14] A light-folded camera module (100) having an incident axis (x) and an exit axis (y), and comprising: a mounting bracket (110); a reflective element (120) for folding an imaging light of the light-folded camera module (100) from the incident axis (x) to the exit axis (y), wherein the reflective element (120) is attached to the mounting bracket (110) and the reflective element (120) has an incident surface (121) and an exit surface (122); a first lens arrangement (130); a second lens arrangement (140) for providing an optical refractive power of the light-folded camera module (100) together with the first lens arrangement (130), wherein the first lens arrangement (130), the second lens arrangement (140) and the incident surface (121) of the reflective element (120) are arranged one after the other along the incident axis (x); and an image sensor (150) for receiving the imaging light of the light-folded camera module (100), wherein the image sensor (150) is arranged relative to the exit surface (122) of the reflective element (120) along the exit axis (y); wherein the second lens arrangement (140) is fixed in the mounting bracket (110) such that there is no relative displacement between the second lens arrangement (140) and the reflective element (120), the light-folded camera module (100) further comprises a focus drive device (160), the focus drive device (160) comprises a fixed component (161), a movable component (163) and a spherical element (162), wherein the first lens arrangement (130) is arranged on the movable component (163), the spherical element (162) is arranged between the fixed component (161) and the movable component (163) such that a degree of freedom and a driving force are provided to move the first lens arrangement (130) along a direction parallel to the incident axis (x); wherein a vertical distance between a center of the image sensor (150) and the incident axis (x) is S, a height of the reflective element (120) along the direction parallel to the incident axis (x) is H, a distance between a center of an image-side surface of the second lens arrangement (140) and the center of the image sensor (150) along the direction parallel to the incident axis (x) is Lf, and the following conditions are met: 4.5 mm <S<20 mm; and 0≤Lf <H. [15] Light-folded camera module (100) according to claim 14, wherein the vertical distance between the center of the image sensor (150) and the incident axis (x) is S and the following condition is met: 6.0 mm <S<17 mm. [16] The light-folded camera module (100) of claim 14, wherein the reflective element (120) further comprises at least two reflective surfaces (123, 124, 125). [17] The light-folded camera module (100) according to claim 16, wherein a number of the at least two reflective surfaces (123, 124, 125) is an odd number. [18] The light-folded camera module (100) of claim 14, wherein the first lens assembly (130) comprises at least one glass lens element and at least one plastic lens element. [19] The light-folded camera module (100) of claim 14, wherein the reflective element (120) is made of plastic and has at least one sprue track (126). [20] The light-folded camera module (200) of claim 14, further comprising: a two-dimensional image stabilization device (280) for providing a driving force to move the image sensor (250) in a plane perpendicular to the exit axis (y). [21] The light-folded camera module (100) of claim 14, further comprising: a three-dimensional image stabilization device (180) for providing a driving force to move the image sensor (150) in a three-dimensional space. [22] A light-folded camera module (100) having an incident axis (x) and an exit axis (y), and comprising: a mounting bracket (110); a reflective element (120) for folding an imaging light of the light-folded camera module (100) from the incident axis (x) to the exit axis (y), wherein the reflective element (120) is attached to the mounting bracket (110) and the reflective element (120) has an incident surface (121) and an exit surface (122); a first lens arrangement (130); a second lens arrangement (140) for providing an optical refractive power of the light-folded camera module (100) together with the first lens arrangement (130), wherein the first lens arrangement (130), the second lens arrangement (140) and the incident surface (121) of the reflective element (120) are arranged one after the other along the incident axis (x); and an image sensor (150) for receiving the imaging light of the light-folded camera module (100), wherein the image sensor (150) is arranged relative to the exit surface (122) of the reflective element (120) along the exit axis (y); wherein the second lens arrangement (140) is mounted in the mounting bracket (110) such that there is no relative displacement between the second lens arrangement (140) and the reflective element (120), wherein the light-folded camera module (100) further comprises a focus drive device (160) and an image stabilization device, the focus drive device (160) serves to provide a driving force to move the first lens arrangement (130) along a direction parallel to the incident axis (x), the image stabilization device serves to provide a further driving force to move the image sensor (150) within a plane perpendicular to the exit axis (y); wherein a height of the reflecting element (120) along the direction parallel to the incident axis (x) is H, a distance between a center of an image-side surface of the second lens arrangement (140) and a center of the image sensor (150) along the direction parallel to the incident axis (x) is Lf, and the following condition is satisfied: 0≤Lf <H. [23] The light-folded camera module (100) of claim 22, wherein the reflective element (120) further comprises at least two reflective surfaces (123, 124, 125). [24] The light-folded camera module (100) according to claim 23, wherein a number of the at least two reflective surfaces (123, 124, 125) is an odd number. [25] The light-folded camera module (100) of claim 22, wherein the reflective element (120) is made of plastic and has at least one sprue track (126). [26] The light-folded camera module (100) according to claim 22, wherein a distance between a center of an object-side surface of the second lens array (140) and the center of the image sensor (150) along the direction parallel to the incident axis (x) is Ls, a distance between the center of the object-side surface of the second lens array (140) and a position at which the exit axis (y) passes through the exit surface (122) of the reflective element (120) along the direction parallel to the incident axis (x) is Le, and the following condition is satisfied: 0≤Ls <Le. [27] An electronic device (10) comprising: the light-folded camera module (100) according to claim 22.

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