Imaging Lens, Image Capturing Module and Electronic Device

Abstract

The present invention discloses an imaging lens, an image pickup module and an electronic device. The imaging lens includes a lens and a through-hole element; the imaging optical path of the imaging lens passes through the optical part of the lens; the through-hole element surrounds the imaging optical path and forms a through hole, and the through-hole element contacts the object side or the image side of the lens; the through-hole element includes a first conical surface, a second conical surface and a bearing surface; the first conical surface and the second conical surface surround the imaging optical path with the imaging optical path as the axis, and the second conical surface is closer to the through hole than the first conical surface; the bearing surface is perpendicular to the imaging optical path and is in physical contact with the lens; when the imaging lens is in a first environment, the first conical surface is in physical contact with the lens, the second conical surface is spaced from the lens, and the through hole is aligned with the optical part; when the imaging lens is in a second environment, the second conical surface is in physical contact with the lens, the first conical surface is spaced from the lens, and the through hole is aligned with the optical part. The image pickup module has the imaging lens. The electronic device has the image pickup module. The present invention can maintain the alignment of optical elements on the imaging optical path.

Description

Technical Field

[0001] The present invention relates to an imaging lens, an image pickup module, and an electronic device, and particularly to an imaging lens and an image pickup module suitable for an electronic device. Background Art

[0002] With the further improvement of semiconductor process technology, the performance of electronic photosensitive elements has been improved, and pixels can reach a smaller size. Therefore, an optical lens with high imaging quality has become an indispensable part. In addition, with the rapid development of technology, the application range of mobile phone devices equipped with optical lenses is more extensive, and the requirements for optical lenses are also more diverse.

[0003] In recent years, electronic products have been developing towards being thinner and lighter. However, traditional optical lenses are difficult to meet the requirements of miniaturization and high imaging quality at the same time. Nowadays, most image pickup modules have functions such as autofocus, optical anti-shake, and zoom. However, in order to implement the various functions, the structure of the image pickup module becomes relatively complex and its size also increases accordingly, resulting in an increase in the volume of the electronic device. When a generally known optical lens is affected by environmental changes, axial displacement is likely to occur between optical elements such as lenses and through-hole components on the imaging optical path and they cannot be aligned with each other, resulting in a decrease in imaging quality. Summary of the Invention

[0004] In view of the above-mentioned problems, the present invention discloses an imaging lens, an image pickup module, and an electronic device, which helps to solve the problem that when an optical lens in the prior art is affected by environmental changes, axial displacement is likely to occur between optical elements such as lenses and through-hole components on the imaging optical path and they cannot be aligned with each other.

[0005] The present invention provides an imaging lens, including a first lens and a through-hole element; the first lens has an optical portion, and an imaging optical path of the imaging lens passes through the optical portion; the through-hole element surrounds the imaging optical path and forms a through-hole, and the through-hole element faces and is in physical contact with the object side or the image side of the first lens; one side of the through-hole element facing the first lens includes a first conical surface, a second conical surface, and a bearing surface; the first conical surface surrounds the imaging optical path with the imaging optical path as the axis; the second conical surface surrounds the imaging optical path with the imaging optical path as the axis, and the second conical surface is closer to the through-hole than the first conical surface; the bearing surface is substantially perpendicular to the imaging optical path, and the bearing surface is in physical contact with the first lens; when the imaging lens is in a first environment, the first conical surface is in physical contact with the first lens, the second conical surface is spaced from the first lens, and the through-hole is aligned with the optical portion; when the imaging lens is in a second environment, the second conical surface is in physical contact with the first lens, the first conical surface is spaced from the first lens, and the through-hole is aligned with the optical portion; wherein, the first environment and the second environment have at least one of the following relationships:

[0006] A temperature dependence relationship, where the temperature of the first environment is Ta and the temperature of the second environment is Tb, and they satisfy the following conditions: 6K ≤ |Ta - Tb| ≤ 198K; and

[0007] A humidity dependence relationship, where the relative humidity of the first environment is RHa and the relative humidity of the second environment is RHb, and they satisfy the following conditions: 14% ≤ |RHa - RHb| ≤ 81%.

[0008] The present invention further provides an imaging lens, comprising a first through-hole element and a second through-hole element; the first through-hole element surrounds an imaging optical path of the imaging lens and forms a first through-hole; the second through-hole element surrounds the imaging optical path and forms a second through-hole, and the second through-hole element faces and is in physical contact with the object side or the image side of the first through-hole element; one side of the first through-hole element facing the second through-hole element includes a first conical surface, a second conical surface, and a bearing surface; the first conical surface surrounds the imaging optical path with the imaging optical path as the axis; the second conical surface surrounds the imaging optical path with the imaging optical path as the axis, and the second conical surface is closer to the first through-hole than the first conical surface; the bearing surface is substantially perpendicular to the imaging optical path, and the bearing surface is in physical contact with the second through-hole element; when the imaging lens is in a first environment, the first conical surface is in physical contact with the second through-hole element, the second conical surface is spaced from the second through-hole element, and the first through-hole is aligned with the second through-hole; when the imaging lens is in a second environment, the second conical surface is in physical contact with the second through-hole element, the first conical surface is spaced from the second through-hole element, and the first through-hole is aligned with the second through-hole; wherein, the first environment and the second environment have at least one of the following relationships:

[0009] A temperature dependence relationship, where the temperature of the first environment is Ta and the temperature of the second environment is Tb, and they satisfy the following conditions: 23K ≤ |Ta - Tb| ≤ 195K; and

[0010] A humidity dependence relationship, where the relative humidity of the first environment is RHa and the relative humidity of the second environment is RHb, and they satisfy the following conditions: 14% ≤ |RHa - RHb| ≤ 81%.

[0011] The present invention further provides an imaging lens, comprising a first lens and a second lens; the first lens has a first optical portion, and an imaging optical path of the imaging lens passes through the first optical portion; the second lens comprises a second optical portion and an opaque portion; the imaging optical path passes through the second optical portion; the opaque portion is farther from the imaging optical path than the second optical portion, and the opaque portion faces and is in physical contact with the object side or the image side of the first lens; one side of the opaque portion facing the first lens comprises a first conical surface, a second conical surface and a bearing surface; the first conical surface surrounds the imaging optical path with the imaging optical path as the axis; the second conical surface surrounds the imaging optical path with the imaging optical path as the axis, and the second conical surface is closer to the second optical portion than the first conical surface; the bearing surface is substantially perpendicular to the imaging optical path, and the bearing surface is in physical contact with the first lens; when the imaging lens is in a first environment, the first conical surface is in physical contact with the first lens, the second conical surface is spaced from the first lens, and the first optical portion is aligned with the second optical portion; when the imaging lens is in a second environment, the second conical surface is in physical contact with the first lens, the first conical surface is spaced from the first lens, and the first optical portion is aligned with the second optical portion; wherein, the first environment and the second environment have at least one of the following relationships:

[0012] A temperature dependence relationship, wherein the temperature of the first environment is Ta and the temperature of the second environment is Tb, which satisfy the following conditions: 6K ≤ |Ta - Tb| ≤ 198K; and

[0013] A humidity dependence relationship, wherein the relative humidity of the first environment is RHa and the relative humidity of the second environment is RHb, which satisfy the following conditions: 14% ≤ |RHa - RHb| ≤ 81%.

[0014] The present invention provides an image pickup module, comprising the aforementioned imaging lens and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on the imaging surface of the imaging lens.

[0015] The present invention provides an electronic device, comprising the aforementioned image pickup module.

[0016] According to the imaging lens, image pickup module and electronic device disclosed by the present invention, through the above configuration, the secondary alignment under different temperatures and / or different humidities enables the imaging lens to maintain the alignment of lenses, between a lens and a through-hole element or between through-hole elements on the imaging optical path when affected by environmental changes, which helps to reduce the risk of axial deviation and can maintain the cooperation when the environment recovers, thereby improving the resistance of the imaging lens to changes in external factors. Moreover, the imaging lens can further resist external forces such as dropping impact and vibration. In addition, through the feature that the first conical surface and the second conical surface are not in physical contact with the corresponding lens or through-hole element at the same time, the influence of mechanism interference on the cooperation between lenses can be avoided.

[0017] The above description of the disclosure of the present invention and the following description of the embodiments are used to illustrate and explain the spirit and principles of the present invention, and to provide a further explanation of the scope of protection of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following drawings are only intended to schematically illustrate and explain the present invention, and do not limit the scope of the present invention. Among them:

[0019] Figure 1 A three-dimensional sectional view of an imaging module according to a first embodiment of the present invention is shown.

[0020] Figure 2 Shown Figure 1 A three-dimensional exploded view of a first lens and a through-hole element of an imaging lens of the imaging module of

[0021] Figure 3 Shown Figure 1 A sectional view of an imaging lens of the imaging module of

[0022] Figure 4 Shown Figure 3 An enlarged view of the region EL1 of

[0023] Figure 5 Shown is an enlarged view of the region EL2 when the imaging lens is in the first environment Figure 4 of

[0024] Figure 6 Shown is an enlarged view of the region EL2 when the imaging lens is in the second environment Figure 4 of

[0025] Figure 7 A three-dimensional sectional view of an imaging module according to a second embodiment of the present invention is shown.

[0026] Figure 8 Shown Figure 7 A three-dimensional exploded view of a first through-hole element and a second through-hole element of an imaging lens of the imaging module of

[0027] Figure 9 Shown Figure 7 A sectional view of an imaging lens of the imaging module of

[0028] Figure 10 Shown Figure 9 An enlarged view of the region EL3 of

[0029] Figure 11 Shown is an enlarged view of the region EL4 when the imaging lens is in the first environment Figure 10 of

[0030] Figure 12Schematic diagram showing the imaging lens in the second environment Figure 10 of the enlarged view of region EL4.

[0031] Figure 13 Schematic diagram showing the three-dimensional sectional view of the image pickup module according to the third embodiment of the present invention.

[0032] Figure 14 Schematic diagram showing Figure 13 the three-dimensional exploded view of the first lens, the second lens, the through-hole element and the light-shielding element of the imaging lens of the image pickup module.

[0033] Figure 15 Schematic diagram showing Figure 13 the three-dimensional exploded view of the second lens, the through-hole element and the fixing element of the imaging lens of the image pickup module.

[0034] Figure 16 Schematic diagram showing Figure 13 the sectional view of the imaging lens of the image pickup module.

[0035] Figure 17 Schematic diagram showing Figure 16 the enlarged view of region EL5.

[0036] Figure 18 Schematic diagram showing the enlarged view of region EL6 when the imaging lens is in the first environment Figure 17 of the imaging lens.

[0037] Figure 19 Schematic diagram showing the enlarged view of region EL6 when the imaging lens is in the second environment Figure 17 of the imaging lens.

[0038] Figure 20 Schematic diagram showing the three-dimensional sectional view of the image pickup module according to the fourth embodiment of the present invention.

[0039] Figure 21 Schematic diagram showing Figure 20 the three-dimensional exploded view of the first lens, the second lens, the through-hole element and the light-shielding element of the imaging lens of the image pickup module.

[0040] Figure 22 Schematic diagram showing Figure 20 the three-dimensional exploded view of the second lens and the through-hole element of the imaging lens of the image pickup module.

[0041] Figure 23 Schematic diagram showing Figure 20 the sectional view of the imaging lens of the image pickup module.

[0042] Figure 24 Schematic diagram showing Figure 23 the enlarged view of region EL7.

[0043] Figure 25Schematic diagram of the enlarged view of the area EL8 when the imaging lens is in the first environment Figure 24

[0044] Figure 26 Schematic diagram of the enlarged view of the area EL8 when the imaging lens is in the second environment Figure 24

[0045] Figure 27 Schematic diagram of the three-dimensional sectional view of the imaging module according to the fifth embodiment of the present invention

[0046] Figure 28 Schematic diagram showing Figure 27 The three-dimensional exploded view of the first lens and the through-hole element of the imaging lens of the imaging module

[0047] Figure 29 Schematic diagram showing Figure 27 The sectional view of the imaging lens of the imaging module along the section line 29-29

[0048] Figure 30 Schematic diagram showing Figure 27 The sectional view of the imaging lens of the imaging module along the section line 30-30

[0049] Figure 31 Schematic diagram showing Figure 30 The enlarged view of the area EL9

[0050] Figure 32 Schematic diagram of the enlarged view of the area EL10 when the imaging lens is in the first environment Figure 31

[0051] Figure 33 Schematic diagram of the enlarged view of the area EL10 when the imaging lens is in the second environment Figure 31

[0052] Figure 34 Schematic diagram of the three-dimensional sectional view of the imaging module according to the sixth embodiment of the present invention

[0053] Figure 35 Schematic diagram showing Figure 34 The three-dimensional exploded view of the first lens and the through-hole element of the imaging lens of the imaging module

[0054] Figure 36 Schematic diagram showing Figure 34 The other three-dimensional view of the first lens and the through-hole element of the imaging lens of the imaging module

[0055] Figure 37 Schematic diagram showing Figure 34 The sectional view of the imaging lens of the imaging module along the section line 37-37

[0056] Figure 38 ​​​​Illustration Figure 34 Schematic cross-sectional view of the imaging lens of the imaging module along the 38-38 sectional line.

[0057] Figure 39 Illustration Figure 38 Enlarged schematic view of the area EL11.

[0058] Figure 40 Illustration of the area EL12 when the imaging lens is in the first environment Figure 39 Enlarged schematic view.

[0059] Figure 41 Illustration of the area EL12 when the imaging lens is in the second environment Figure 39 Enlarged schematic view.

[0060] Figure 42 Stereoscopic schematic view of an electronic device according to the seventh embodiment of the present invention.

[0061] Figure 43 Illustration Figure 42 Stereoscopic schematic view of the other side of the electronic device.

[0062] Figure 44 Illustration Figure 42 System block diagram of the electronic device.

[0063] Figure 45 Illustration Figure 42 Image schematic view captured by the electronic device with an equivalent focal length between 11 mm and 14 mm.

[0064] Figure 46 Illustration Figure 42 Image schematic view captured by the electronic device with an equivalent focal length between 22 mm and 30 mm.

[0065] Figure 47 Illustration Figure 42 Image schematic view captured by the electronic device with an equivalent focal length between 60 mm and 300 mm.

[0066] Figure 48 Illustration Figure 42 Image schematic view captured by the electronic device with an equivalent focal length between 400 mm and 600 mm.

[0067] Explanation of the reference numerals in the drawings:

[0068] 11, 21, 31, 41, 51, 61... Imaging lens

[0069] 110, 210, 310, 410, 510, 610... Imaging surface

[0070] 111, 211, 311, 411, 511, 611… imaging lens group

[0071] 112, 312, 412, 512, 612… through-hole element

[0072] 212… first through-hole element

[0073] 213… second through-hole element

[0074] 1121, 2121, 2131, 3121, 4121, 5121, 6121… inner side surface

[0075] 1122, 2122, 2132, 4122, 5122… antireflection structure

[0076] 1123, 3123, 4123, 5123, 6123… through-hole

[0077] 2123… first through-hole

[0078] 2133… second through-hole

[0079] 1124, 2124, 3124, 4124, 5124, 6124… first conical surface

[0080] 1125, 2125, 3125, 4125, 5125, 6125… second conical surface

[0081] 1126, 2126, 3126, 4126, 5126, 6126… bearing surface

[0082] 615… reflecting element

[0083] ER1… incident light surface

[0084] ER2… reflecting surface

[0085] ER3... exit light surface

[0086] 316… fixing element

[0087] 317, 417… light-shielding element

[0088] 118, 218, 318, 418, 518, 618… light-filtering element

[0089] 119, 219, 319, 419, 519, 619… lens barrel

[0090] 10, 20, 30, 40, 50, 60… electronic photosensitive element

[0091] 7… electronic device

[0092] 7a, 7b, 7c, 7d, 7e, 7f, 7g, 7h... Imaging module

[0093] 72... Light-emitting element

[0094] 73... Focus assist module

[0095] 74... System-on-a-chip

[0096] 75... Display device

[0097] 751... Zoom control key

[0098] 752... Focus and capture button

[0099] 753... Image playback button

[0100] 754... Imaging module switching button

[0101] 755... Integrated menu button

[0102] 77... Biometric sensor

[0103] 78... Circuit board

[0104] 781... Connector

[0105] 79... Electronic component

[0106] IOP... Imaging optical path

[0107] E1... First lens

[0108] E10... Optical part

[0109] E11, 2134... First corresponding conical surface

[0110] E12, 2135... Second corresponding conical surface

[0111] E19... Opaque part

[0112] E191... Inner side surface

[0113] E192... Anti-reflection structure

[0114] E2... Second lens

[0115] E20... Optical part

[0116] E29... Non-optical part

[0117] E3... Third lens

[0118] ELS... Lens

[0119] CS... Cross section

[0120] SS... Reduced surface

[0121] D…The closest distance between the first conical surface and the second conical surface

[0122] d…The shortest distance between the first corresponding conical surface and the second corresponding conical surface

[0123] θ…The angle between the first conical surface and the second conical surface on the cross-section parallel to the imaging optical path

[0124] OBJ…Object to be photographed Detailed implementation manner

[0125] The detailed features and advantages of the present invention are described in detail in the following embodiments. The content is sufficient for any person skilled in the relevant art to understand the technical content of the present invention and implement it accordingly. And according to the content, protection scope and drawings disclosed in this specification, any person skilled in the relevant art can easily understand the relevant purposes and advantages of the present invention. The following embodiments further illustrate the viewpoints of the present invention in detail, but do not limit the scope of the present invention in any way.

[0126] The present invention provides an imaging lens, which includes a first lens and a through-hole element. The first lens has an optical portion, and an imaging optical path of the imaging lens passes through the optical portion. The through-hole element surrounds the imaging optical path and forms a through-hole, and the through-hole element faces and physically contacts the object side or the image side of the first lens.

[0127] One side of the through-hole element facing the first lens includes a first conical surface, a second conical surface and a bearing surface. The first conical surface surrounds the imaging optical path with the imaging optical path as the axis. The second conical surface surrounds the imaging optical path with the imaging optical path as the axis, and the second conical surface is closer to the through-hole than the first conical surface. The bearing surface is substantially perpendicular to the imaging optical path, and the bearing surface physically contacts the first lens. Wherein, the through-hole element can have the function of light shielding, used to shield or absorb non-imaging light, thereby improving the imaging quality. In addition, the through-hole element can have functions such as maintaining the lens spacing and fixing the lens.

[0128] When the imaging lens is in a first environment, the first conical surface is in solid contact with the first lens, the second conical surface is spaced from the first lens, and the through hole is aligned with the optical part. When the imaging lens is in a second environment, the second conical surface is in solid contact with the first lens, the first conical surface is spaced from the first lens, and the through hole is aligned with the optical part. Among them, the first environment and the second environment have at least one of the following relationships: a temperature dependence relationship, where the temperature of the first environment is Ta and the temperature of the second environment is Tb, which satisfies the following conditions: 6 Kelvin (K) ≤ |Ta - Tb| ≤ 198 K; and a humidity dependence relationship, where the relative humidity of the first environment is RHa and the relative humidity of the second environment is RHb, which satisfies the following conditions: 14% ≤ |RHa - RHb| ≤ 81%. Further explanation, the through hole element and the lens have different volume change ratios in the first environment and the second environment. The reason can be that the through hole element and the lens have different thermal expansion coefficients, or that the through hole element and the lens have different water absorption rates or different sensitivities of humidity to volume change, or that the spatial configuration of the imaging lens causes a gradient change in temperature or humidity inside the imaging lens resulting in different volume change ratios, and the through hole element and the lens can further be of the same material. Thereby, the relative radial offset between the lens and the through hole element is restricted at different temperatures and / or different humidities to achieve the function of secondary alignment, which can reduce the risk of axial offset. And, by the feature that the first conical surface and the second conical surface do not contact the lens body simultaneously, the interference of the mechanism on the cooperation between the lenses can be avoided. Among them, in the case where the first environment and the second environment have a temperature dependence relationship, the following conditions can also be satisfied: 10 K ≤ |Ta - Tb| ≤ 100 K. Among them, in the case where the first environment and the second environment have a temperature dependence relationship, the following conditions can also be satisfied: 15 K ≤ |Ta - Tb| ≤ 50 K. Among them, in the case where the first environment and the second environment have a humidity dependence relationship, the following conditions can also be satisfied: 20% ≤ |RHa - RHb| ≤ 60%. The statement "when the imaging lens is in an environment" can be defined as that the imaging lens is set in the environment for a period of time and there is no obvious "changing" situation. For example, in the case of the temperature dependence relationship, it can mean that the imaging lens is set at a specific environmental temperature for a period of time, and it is confirmed that there is basically no obvious heating or cooling in this environment, for example, the temperature difference is maintained within 6 K.

[0129] Through the above configuration, when the imaging lens is affected by environmental changes, the alignment between the lens and the through hole element on the imaging optical path can be maintained, and the cooperation can be maintained when the environment is restored, thereby improving the resistance of the imaging lens to changes in external factors. And, the imaging lens can further resist external forces such as dropping impact and vibration. In addition, the bearing surface of the through hole element is in solid contact with the first lens under the condition of environmental change. The environmental change can be temperature change, humidity change or a long-term high temperature and high humidity environment, etc.

[0130] The first lens may further include a first corresponding conical surface and a second corresponding conical surface. The first corresponding conical surface is disposed corresponding to the first conical surface, and the second corresponding conical surface is disposed corresponding to the second conical surface. Wherein, in a cross-section perpendicular to the imaging optical path and passing through the first conical surface, the first corresponding conical surface, the second conical surface, and the second corresponding conical surface, the shortest distance between the first conical surface and the second conical surface is D, and the shortest distance between the first corresponding conical surface and the second corresponding conical surface is d, which may satisfy the following conditions: 0.2 μm ≤ |D - d| ≤ 19.8 μm. Thus, by controlling the spacing distance (|D - d|) between the conical surfaces, an optimized design can be made for the actual situation. Among them, the following conditions may also be satisfied: 1.0 μm ≤ |D - d| ≤ 9.8 μm. Among them, the following conditions may also be satisfied: 2.0 μm ≤ |D - d| ≤ 3.5 μm. Please refer to Figure 6 , which is a schematic diagram showing the parameters D and d in the first embodiment of the present invention.

[0131] The first lens may further include an opaque portion, and the opaque portion surrounds the optical portion and forms the first corresponding conical surface and the second corresponding conical surface. Thus, the opaque portion can further block non-imaging light from entering the electronic photosensitive element to form glare, thereby improving the imaging quality. The opaque portion and the optical portion may be integrally formed into the first lens by two-shot molding. The opaque portion and the optical portion may be of the same material, and the opaque portion is formed by adding an opaque pigment. Thus, the bonding property between the opaque portion and the optical portion is improved. The opaque portion and the optical portion may also be of different materials, and the opaque portion and the optical portion may be further combined by an embedding method. Thus, the bonding property between the optical portion and the opaque portion is improved.

[0132] The included angle between the first conical surface and the second conical surface in a cross-section parallel to the imaging optical path is θ, which may satisfy the following conditions: 12° ≤ θ ≤ 145°. Thus, the force direction between the lens and the through-hole element can be controlled to avoid bending during expansion and contraction. Among them, the following conditions may also be satisfied: 15° ≤ θ ≤ 90°. Among them, the following conditions may also be satisfied: 20° ≤ θ ≤ 60°. Please refer to Figure 6 , which is a schematic diagram showing the parameter θ in the first embodiment of the present invention.

[0133] The imaging lens disclosed in the present invention may further include a second lens. The through-hole element may further include an inner side surface. The inner side surface surrounds the imaging optical path and forms a through hole, and the second lens is disposed in the through hole and is in physical contact with the inner side surface. Thus, the through-hole element can simultaneously have the functions of blocking non-imaging light and fixing the lens, thereby reducing the use of parts and improving production efficiency.

[0134] The through-hole element may further include an anti-reflection structure, and the anti-reflection structure covers at least a part of the inner side surface. Thereby, the anti-reflection structure can reduce the glare formed by the non-imaging light reflected by the inner side surface. Among them, the anti-reflection structure can be a peak-valley structure with multiple protrusions. In addition, the anti-reflection structure can also be a coating with light-absorbing properties, but the present invention is not limited thereto.

[0135] The second lens and the through-hole element can be integrally formed by secondary injection molding. Thereby, the secondary injection molding can reduce the assembly process of the second lens and the through-hole element and further reduce the assembly tolerance.

[0136] The first lens can be a reflective lens, which sequentially includes an incident light surface, at least one reflective surface and an exit light surface from the object side to the image side along the imaging optical path, and the imaging optical path turns at at least one reflective surface. Thereby, the lens can further have the function of turning the optical path, so as to reduce the height of the imaging lens.

[0137] The imaging lens disclosed by the present invention can further include a light-shielding element, and the light-shielding element is disposed between the first lens and the through-hole element. Thereby, the light-shielding element can block the non-imaging light to reduce the generation of glare, which helps to improve the imaging quality.

[0138] At least one of the first conical surface and the second conical surface may not completely surround the imaging optical path. Thereby, the size of the imaging lens can be reduced to further reduce the size of the electronic device. In addition, it can also correspond to non-circular lenses (such as prisms or lenses with reduced surfaces) and through-hole elements. Among them, the first conical surface and the second conical surface can be in a C shape.

[0139] The through-hole element can be an opaque component. For example, the through-hole element can be an opaque plastic part, ceramic part or metal part, but the present invention is not limited to the materials listed above.

[0140] The imaging lens disclosed by the present invention can further include a third lens, wherein the third lens is spaced from the first lens, and the through-hole element is disposed between the first lens and the third lens. Thereby, the through-hole element can have the function of spacing the two lenses.

[0141] The imaging lens disclosed above includes a through-hole element that can be used to limit the radial offset of the lens, but the physical contact between the through-hole element and the lens is not used to limit the present invention. The present invention further provides an imaging lens, which includes a first through-hole element and a second through-hole element. The first through-hole element surrounds an imaging optical path of the imaging lens and forms a first through-hole. The second through-hole element surrounds the imaging optical path and forms a second through-hole, and the second through-hole element faces and physically contacts the object side or the image side of the first through-hole element.

[0142] One side of the first through-hole element facing the second through-hole element includes a first conical surface, a second conical surface, and a bearing surface. The first conical surface surrounds the imaging optical path with the imaging optical path as the axis. The second conical surface surrounds the imaging optical path with the imaging optical path as the axis, and the second conical surface is closer to the first through-hole than the first conical surface. The bearing surface is substantially perpendicular to the imaging optical path, and the bearing surface is in physical contact with the second through-hole element. Among them, the through-hole element can have the function of light shielding, used to block or absorb non-imaging light, thereby improving the imaging quality. In addition, the through-hole element can have functions such as maintaining the lens spacing and fixing the lens.

[0143] When the imaging lens is in a first environment, the first conical surface is in physical contact with the second through-hole element, the second conical surface is spaced from the second through-hole element, and the first through-hole is aligned with the second through-hole. When the imaging lens is in a second environment, the second conical surface is in physical contact with the second through-hole element, the first conical surface is spaced from the second through-hole element, and the first through-hole is aligned with the second through-hole. Among them, the first environment and the second environment have at least one of the following relationships: a temperature dependence relationship, where the temperature of the first environment is Ta and the temperature of the second environment is Tb, and they satisfy the following conditions: 6K ≤ |Ta - Tb| ≤ 198K; and a humidity dependence relationship, where the relative humidity of the first environment is RHa and the relative humidity of the second environment is RHb, and they satisfy the following conditions: 14% ≤ |RHa - RHb| ≤ 81%. Thereby, the relative radial offset amount between the through-hole elements is restricted from each other at different temperatures and / or different humidities to achieve the effect of secondary alignment, and the risk of axial offset can be reduced. And, due to the characteristic that the first conical surface and the second conical surface do not come into physical contact with the second through-hole element simultaneously, the cooperation between the lenses can be prevented from being affected by mechanical interference. Among them, in the case where the first environment and the second environment have a temperature dependence relationship, the following conditions can also be satisfied: 10K ≤ |Ta - Tb| ≤ 100K. Among them, in the case where the first environment and the second environment have a temperature dependence relationship, the following conditions can also be satisfied: 15K ≤ |Ta - Tb| ≤ 50K. Among them, in the case where the first environment and the second environment have a humidity dependence relationship, the following conditions can also be satisfied: 20% ≤ |RHa - RHb| ≤ 60%.

[0144] Through the above configuration, when the imaging lens is affected by environmental changes, the alignment of the through-hole elements on the imaging optical path can be maintained, and the cooperation can be maintained when the environment recovers, thereby improving the resistance of the imaging lens to changes in external factors. And, the imaging lens can further resist external forces such as dropping impact and vibration. In addition, the bearing surface of the first through-hole element remains in physical contact with the second through-hole element under the condition of environmental change. The environmental change can be temperature change, humidity change, or a long-term high-temperature and high-humidity environment, etc.

[0145] The second through-hole element may further include a first corresponding conical surface and a second corresponding conical surface. The first corresponding conical surface is disposed corresponding to the first conical surface, and the second corresponding conical surface is disposed corresponding to the second conical surface. Wherein, in a cross-section perpendicular to the imaging optical path and passing through the first conical surface, the first corresponding conical surface, the second conical surface, and the second corresponding conical surface, the shortest distance between the first conical surface and the second conical surface is D, and the shortest distance between the first corresponding conical surface and the second corresponding conical surface is d, which may satisfy the following conditions: 0.2 μm ≤ |D - d| ≤ 19.8 μm. Thus, by controlling the spacing distance (|D - d|) between the conical surfaces, an optimized design can be made for the actual situation. Among them, the following conditions may also be satisfied: 1.0 μm ≤ |D - d| ≤ 9.8 μm. Among them, the following conditions may also be satisfied: 2.0 μm ≤ |D - d| ≤ 3.5 μm.

[0146] The included angle between the first conical surface and the second conical surface in a cross-section parallel to the imaging optical path is θ, which may satisfy the following conditions: 12° ≤ θ ≤ 145°. Thus, the force direction between the through-hole elements can be controlled to avoid bending during expansion and contraction. Among them, the following conditions may also be satisfied: 15° ≤ θ ≤ 90°. Among them, the following conditions may also be satisfied: 20° ≤ θ ≤ 60°.

[0147] The imaging lens disclosed in the present invention may further include a first lens. The first through-hole element may further include an inner side surface, wherein the inner side surface surrounds the imaging optical path and forms a first through-hole, and the first lens is disposed in the first through-hole and is in physical contact with the inner side surface. Thus, the through-hole element can simultaneously have the functions of shielding non-imaging light and fixing the lens, so as to reduce the use of parts and improve production efficiency.

[0148] The first through-hole element may further include an anti-reflection structure, and the anti-reflection structure covers at least a part of the inner side surface. Thus, the anti-reflection structure can reduce the glare formed by the reflection of non-imaging light on the inner side surface. The anti-reflection structure may be a peak-valley structure with multiple protrusions. In addition, the anti-reflection structure may also be a coating with light-absorbing properties. The present invention is not limited thereto.

[0149] The first lens and the first through-hole element may be integrally formed by two-shot molding. Thus, the assembly process of the first lens and the through-hole element can be reduced by two-shot integral molding and the assembly tolerance can be further reduced. The first lens and the first through-hole element may be of the same material. Thus, the bonding property between the first lens and the first through-hole element is improved. The first lens and the first through-hole element may also be of different materials, and the first lens and the first through-hole element may be further combined by an embedding method. Thus, the bonding property between the optical part and the opaque part is improved.

[0150] The first lens may be a reflective lens, which sequentially includes an incident light surface, at least one reflective surface, and an exit light surface along the imaging optical path from the object side to the image side, and the imaging optical path turns at at least one reflective surface. Thus, the lens can further have the function of turning the optical path, thereby reducing the height of the imaging lens.

[0151] The imaging lens disclosed in the present invention may further include a light-shielding element, and the light-shielding element is disposed between the first through-hole element and the second through-hole element. Thus, the light-shielding element can shield non-imaging light to reduce the generation of glare, which helps to improve the imaging quality.

[0152] At least one of the first conical surface and the second conical surface may not completely surround the imaging optical path. Thus, the size of the imaging lens can be reduced to further reduce the size of the electronic device. In addition, it can also correspond to non-circular lenses (such as prisms or lenses with reduced surfaces) and through-hole elements. Among them, the first conical surface and the second conical surface may be C-shaped.

[0153] The first through-hole element and the second through-hole element may both be opaque components. For example, the through-hole element may be an opaque plastic part, ceramic part, or metal part, but the present invention is not limited to the materials listed above.

[0154] The imaging lens disclosed above is additionally provided with independent through-hole elements, but the present invention can also form a structure similar to the aforementioned through-hole elements on the lens. The present invention further provides an imaging lens, which includes a first lens and a second lens. The first lens has a first optical portion, and an imaging optical path of the imaging lens passes through the first optical portion. The second lens includes a second optical portion and an opaque portion. The imaging optical path passes through the second optical portion. The opaque portion is farther from the imaging optical path than the second optical portion, and the opaque portion faces and physically contacts the object side or the image side of the first lens.

[0155] The side of the opaque portion facing the first lens includes a first conical surface, a second conical surface, and a bearing surface. The first conical surface surrounds the imaging optical path with the imaging optical path as the axis. The second conical surface surrounds the imaging optical path with the imaging optical path as the axis, and the second conical surface is closer to the second optical portion than the first conical surface. The bearing surface is substantially perpendicular to the imaging optical path, and the bearing surface physically contacts the first lens. Among them, the opaque portion can have the function of light shielding to shield or absorb non-imaging light, thereby improving the imaging quality. In addition, the through-hole element can have functions such as maintaining the lens spacing and fixing the lens.

[0156] When the imaging lens is in a first environment, the first conical surface is in solid contact with the first lens, the second conical surface is spaced apart from the first lens, and the first optical portion is aligned with the second optical portion. When the imaging lens is in a second environment, the second conical surface is in solid contact with the first lens, the first conical surface is spaced apart from the first lens, and the first optical portion is aligned with the second optical portion. Among them, the first environment and the second environment have at least one of the following relationships: a temperature dependence relationship, where the temperature of the first environment is Ta and the temperature of the second environment is Tb, which satisfies the following conditions: 6K ≤ |Ta - Tb| ≤ 198K; and a humidity dependence relationship, where the relative humidity of the first environment is RHa and the relative humidity of the second environment is RHb, which satisfies the following conditions: 14% ≤ |RHa - RHb| ≤ 81%. Among them, in the case where the first environment and the second environment have a temperature dependence relationship, the following conditions may also be satisfied: 10K ≤ |Ta - Tb| ≤ 100K. Among them, in the case where the first environment and the second environment have a temperature dependence relationship, the following conditions may also be satisfied: 15K ≤ |Ta - Tb| ≤ 50K. Among them, in the case where the first environment and the second environment have a humidity dependence relationship, the following conditions may also be satisfied: 20% ≤ |RHa - RHb| ≤ 60%.

[0157] Through the above configuration, the imaging lens can maintain the alignment of the lenses on the imaging optical path when affected by environmental changes, and can maintain the cooperation when the environment recovers, thereby improving the resistance of the imaging lens to changes in external factors. The environmental changes can be temperature changes, humidity changes, or a long-term high-temperature and high-humidity environment, etc. In addition, the imaging lens can further resist external forces such as drop impacts and vibrations. And, the bearing surface of the opaque portion of the second lens remains in solid contact with the first lens under the condition of environmental change.

[0158] The first lens may further include a first corresponding conical surface and a second corresponding conical surface, the first corresponding conical surface is disposed corresponding to the first conical surface, and the second corresponding conical surface is disposed corresponding to the second conical surface. Among them, in the cross-section perpendicular to the imaging optical path and passing through the first conical surface, the first corresponding conical surface, the second conical surface, and the second corresponding conical surface, the shortest distance between the first conical surface and the second conical surface is D, and the shortest distance between the first corresponding conical surface and the second corresponding conical surface is d, which may satisfy the following conditions: 0.2 μm ≤ |D - d| ≤ 19.8 μm. Thereby, by controlling the interval distance (|D - d|) between the conical surfaces, an optimized design can be made for the actual situation. Among them, the following conditions may also be satisfied: 1.0 μm ≤ |D - d| ≤ 9.8 μm. Among them, the following conditions may also be satisfied: 2.0 μm ≤ |D - d| ≤ 3.5 μm.

[0159] The included angle between the first conical surface and the second conical surface on the cross-section parallel to the imaging optical path is θ, which can satisfy the following conditions: 12 degrees ≤ θ ≤ 145 degrees. Thereby, the force direction between the lenses can be controlled to avoid bending during expansion and contraction. Among them, the following conditions can also be satisfied: 15 degrees ≤ θ ≤ 90 degrees. Among them, the following conditions can also be satisfied: 20 degrees ≤ θ ≤ 60 degrees.

[0160] The opaque part may further include an inner side surface and an anti-reflection structure. The inner side surface faces the imaging optical path, and the anti-reflection structure covers at least a part of the inner side surface. Thereby, the anti-reflection structure can reduce the glare formed by the reflection of non-imaging light through the inner side surface. Among them, the anti-reflection structure can be a peak-valley structure with multiple protrusions. In addition, the anti-reflection structure can also be a coating with light-absorbing properties. The present invention is not limited thereto.

[0161] At least one of the first lens and the second lens can be a reflective lens, which sequentially includes an incident light surface, at least one reflective surface, and an exit light surface along the imaging optical path from the object side to the image side, and the imaging optical path turns at at least one reflective surface. Thereby, the lens can further have the function of turning the optical path to reduce the height of the imaging lens.

[0162] The imaging lens disclosed in the present invention may further include a light-shielding element, and the light-shielding element is disposed between the first lens and the second lens. Thereby, the light-shielding element can block non-imaging light to reduce the generation of glare, which helps to improve the imaging quality.

[0163] At least one of the first conical surface and the second conical surface may not completely surround the imaging optical path. Thereby, the size of the imaging lens can be reduced to further reduce the size of the electronic device. In addition, it can also correspond to non-circular lenses (such as prisms or lenses with reduced surfaces) and through-hole elements. Among them, the first conical surface and the second conical surface can be in a C shape.

[0164] The opaque part and the second optical part can be integrally formed into the second lens by secondary injection molding. Among them, the opaque part and the optical part can be of the same material and the opaque part is formed by adding an opaque pigment. Thereby, the bonding property between the opaque part and the optical part is improved. The opaque part and the optical part can also be of different materials, and the opaque part and the optical part can be further combined by an embedding method. Thereby, the bonding property between the optical part and the opaque part is improved. The opaque part can be a through-hole element, and the opaque part surrounds the imaging optical path and forms a through hole. For example, the through-hole element can be an opaque plastic part, a ceramic part, or a metal part, but the present invention is not limited to the materials listed above.

[0165] The present invention provides an imaging module, which includes at least one of the foregoing imaging lenses.

[0166] The present invention provides an electronic device, which includes the aforementioned imaging module and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on an imaging surface of the imaging lens.

[0167] Each technical feature in the imaging lens of the present invention described above can be combined and configured to achieve corresponding effects.

[0168] According to the above embodiments, specific embodiments are presented below and will be described in detail with reference to the accompanying drawings.

[0169] <First Embodiment>

[0170] Please refer to Figures 1 to 6 , wherein Figure 1 FIG. shows a three-dimensional sectional view of an imaging module according to a first embodiment of the present invention, Figure 2 FIG. shows Figure 1 a three-dimensional exploded view of a first lens and a through-hole element of an imaging lens of the imaging module of Figure 3 FIG. shows Figure 1 a sectional view of an imaging lens of the imaging module of Figure 4 FIG. shows Figure 3 an enlarged view of region EL1 of Figure 5 FIG. shows an enlarged view of region EL2 when the imaging lens is in a first environment Figure 4 and Figure 6 FIG. shows an enlarged view of region EL2 when the imaging lens is in a second environment Figure 4 .

[0171] The imaging module includes an imaging lens 11 and an electronic photosensitive element 10, wherein the electronic photosensitive element 10 is disposed on an imaging surface 110 of the imaging lens 11.

[0172] The imaging lens 11 includes an imaging lens group 111, a through-hole element 112, a filter element 118, and a lens barrel 119. The lens barrel 119 is used to carry the imaging lens group 111 and the through-hole element 112, and the filter element 118 is disposed between the imaging lens group 111 and the imaging surface 110.

[0173] The imaging lens group 111 sequentially includes a first lens E1 and a second lens E2 along the imaging optical path IOP of the imaging lens 11 from the object side to the image side. The first lens E1 has an optical portion E10, and the imaging optical path IOP passes through the optical portion E10 of the first lens E1.

[0174] The through-hole element 112 is disposed between the first lens E1 and the second lens E2, and the through-hole element 112 faces and is in physical contact with the image side of the first lens E1. The through-hole element 112 has the function of spacing two adjacent lenses. In addition, the through-hole element 112 is an opaque component, which includes an inner side surface 1121 and an anti-reflection structure 1122, wherein the inner side surface 1121 surrounds the imaging optical path IOP and forms a through-hole 1123, and the anti-reflection structure 1122 covers at least a part of the inner side surface 1121. The anti-reflection structure 1122 is a concavo-convex structure formed by arranging a plurality of annular grooves surrounding the imaging optical path IOP, which can reduce the non-imaging light from being reflected by the inner side surface 1121 and entering the electronic photosensitive element 10, so that the through-hole element 112 has the function of reducing glare. In this embodiment, the through-hole element 112 is, for example, an opaque plastic part, a ceramic part or a metal part.

[0175] On the side of the through-hole element 112 facing the first lens E1, it further includes a first conical surface 1124, a second conical surface 1125 and a bearing surface 1126. The first conical surface 1124 surrounds the imaging optical path IOP with the imaging optical path IOP as the axis. The second conical surface 1125 surrounds the imaging optical path IOP with the imaging optical path IOP as the axis, and the second conical surface 1125 is closer to the through-hole 1123 than the first conical surface 1124. The bearing surface 1126 is substantially perpendicular to the imaging optical path IOP, and the bearing surface 1126 is in physical contact with the first lens E1.

[0176] On the side of the first lens E1 facing the through-hole element 112, it further includes a first corresponding conical surface E11 and a second corresponding conical surface E12, wherein the first corresponding conical surface E11 is correspondingly arranged with the first conical surface 1124, and the second corresponding conical surface E12 is correspondingly arranged with the second conical surface 1125.

[0177] As Figure 5 shown, when the imaging lens 11 is in a first environment, the first conical surface 1124 is in physical contact with the first lens E1, and the second conical surface 1125 is spaced from the first lens E1. At this time, the through-hole 1123 of the through-hole element 112 is aligned with the optical part E10 of the first lens E1. In addition, as Figure 6As shown, when the imaging lens 11 is in a second environment, the second conical surface 1125 is in physical contact with the first lens E1, and the first conical surface 1124 is spaced from the first lens E1. At this time, the through hole 1123 of the through hole element 112 is aligned with the optical portion E10 of the first lens E1. Among them, the bearing surface 1126 of the through hole element 112 remains in physical contact with the first lens E1 under the condition of environmental change. In this embodiment, the first environment and the second environment have a humidity dependence relationship. Among them, the relative humidity of the first environment is RHa, and the relative humidity of the second environment is RHb, which satisfy the following conditions: RHa = 98%; RHb = 30%; and |RHa - RHb| = 68%. In addition, in this embodiment, the temperatures of the first environment and the second environment are the same. For example, both are 293.1K. Therefore, the first environment and the second environment do not have a temperature dependence relationship.

[0178] As Figure 6 shown, on the cross-section CS perpendicular to the imaging optical path IOP and passing through the first conical surface 1124, the first corresponding conical surface E11, the second conical surface 1125, and the second corresponding conical surface E12, the closest distance between the first conical surface 1124 and the second conical surface 1125 is D, and the shortest distance between the first corresponding conical surface E11 and the second corresponding conical surface E12 is d, which satisfy the following conditions: D = 0.284 mm; d = 0.294 mm; and |D - d| = 10 μm.

[0179] The included angle between the first conical surface 1124 and the second conical surface 1125 on the cross-section parallel to the imaging optical path IOP is θ, which satisfies the following condition: θ = 120 degrees.

[0180] <Second Embodiment>

[0181] Please refer to Figures 7 to 12 , where Figure 7 is a three-dimensional sectional schematic diagram of an imaging module according to a second embodiment of the present invention, Figure 8 showing Figure 7 a three-dimensional exploded schematic diagram of a first through hole element and a second through hole element of an imaging lens of the imaging module, Figure 9 showing Figure 7 a sectional schematic diagram of an imaging lens of the imaging module, Figure 10 showing Figure 9 an enlarged schematic diagram of the area EL3, Figure 11 showing an enlarged schematic diagram of the area EL4 when the imaging lens is in the first environment Figure 10 , and Figure 12 showing an enlarged schematic diagram of the area EL4 when the imaging lens is in the second environment Figure 10 .

[0182] The imaging module includes an imaging lens 21 and an electronic photosensitive element 20, where the electronic photosensitive element 20 is disposed on an imaging surface 210 of the imaging lens 21.

[0183] The imaging lens 21 includes an imaging lens group 211, a first through-hole element 212, a second through-hole element 213, a filter element 218, and a lens barrel 219. The lens barrel 219 is used to carry the imaging lens group 211, the first through-hole element 212, and the second through-hole element 213, and the filter element 218 is disposed between the imaging lens group 211 and the imaging surface 210.

[0184] The imaging lens group 211 includes a plurality of lenses ELS arranged along an imaging optical path IOP of the imaging lens 21. The first through-hole element 212 and the second through-hole element 213 are disposed between two of the lenses ELS, and the second through-hole element 213 faces and is in physical contact with an image side of the first through-hole element 212. The first through-hole element 212 and the second through-hole element 213 have the function of spacing adjacent two lenses ELS. In addition, both the first through-hole element 212 and the second through-hole element 213 are opaque components. The first through-hole element 212 includes an inner side surface 2121 and an anti-reflection structure 2122, and the second through-hole element 213 includes an inner side surface 2131 and an anti-reflection structure 2132. The inner side surface 2121 of the first through-hole element 212 surrounds the imaging optical path IOP and forms a first through-hole 2123, and the inner side surface 2131 of the second through-hole element 213 surrounds the imaging optical path IOP and forms a second through-hole 2133. The anti-reflection structure 2122 of the first through-hole element 212 covers at least a part of the inner side surface 2121. The anti-reflection structure 2132 of the second through-hole element 213 covers at least a part of the inner side surface 2131. The anti-reflection structures 2122 and 2132 are uneven structures formed by arranging a plurality of strip-shaped protrusions extending in the direction of the imaging optical path IOP, which can reduce non-imaging light from entering the electronic photosensitive element 20 through reflection on the inner side surface, so that the through-hole elements 212 and 213 have the function of reducing glare. In this embodiment, the through-hole elements 212 and 213 are, for example, opaque plastic parts, ceramic parts, or metal parts.

[0185] The first through-hole element 212 further includes a first conical surface 2124, a second conical surface 2125, and a bearing surface 2126 on a side facing the second through-hole element 213. The first conical surface 2124 surrounds the imaging optical path IOP with the imaging optical path IOP as the axis. The second conical surface 2125 surrounds the imaging optical path IOP with the imaging optical path IOP as the axis, and the second conical surface 2125 is closer to the first through-hole 2123 than the first conical surface 2124. The bearing surface 2126 is substantially perpendicular to the imaging optical path IOP, and the bearing surface 2126 is in physical contact with the second through-hole element 213.

[0186] The second through-hole element 213 further includes a first corresponding conical surface 2134 and a second corresponding conical surface 2135 on the side facing the first through-hole element 212. The first corresponding conical surface 2134 is correspondingly arranged opposite to the first conical surface 2124, and the second corresponding conical surface 2135 is correspondingly arranged opposite to the second conical surface 2125.

[0187] As Figure 11 shown, when the imaging lens 21 is in a first environment, the first conical surface 2124 is in physical contact with the second through-hole element 213, and the second conical surface 2125 is spaced apart from the second through-hole element 213. At this time, the first through-hole 2123 is aligned with the second through-hole 2133. Additionally, as Figure 12 shown, when the imaging lens 21 is in a second environment, the second conical surface 2125 is in physical contact with the second through-hole element 213, and the first conical surface 2124 is spaced apart from the second through-hole element 213. At this time, the first through-hole 2123 is aligned with the second through-hole 2133. Among them, the bearing surface 2126 of the first through-hole element 212 remains in physical contact with the second through-hole element 213 under the condition of environmental change.

[0188] In this embodiment, the first environment and the second environment have a temperature dependence relationship. The temperature of the first environment is Ta, and the temperature of the second environment is Tb, which satisfy the following conditions: Ta = 343.1K; Tb = 293.1K; and |Ta - Tb| = 50K.

[0189] In this embodiment, the first environment and the second environment also have a humidity dependence relationship. The relative humidity of the first environment is RHa, and the relative humidity of the second environment is RHb, which satisfy the following conditions: RHa = 70%; RHb = 50%; and |RHa - RHb| = 20%.

[0190] As Figure 12 shown, on the cross-section CS perpendicular to the imaging optical path IOP and passing through the first conical surface 2124, the first corresponding conical surface 2134, the second conical surface 2125, and the second corresponding conical surface 2135, the closest distance between the first conical surface 2124 and the second conical surface 2125 is D, and the shortest distance between the first corresponding conical surface 2134 and the second corresponding conical surface 2135 is d, which satisfy the following conditions: D = 0.1815 mm; d = 0.1765 mm; and |D - d| = 5 microns.

[0191] The included angle between the first conical surface 2124 and the second conical surface 2125 on the cross-section parallel to the imaging optical path IOP is θ, which satisfies the following condition: θ = 45 degrees.

[0192] <Third Embodiment>

[0193] Please refer to Figures 13 to 19 where Figure 13Schematic cross-sectional view of the imaging module according to the third embodiment of the present invention Figure 14 Illustrate Figure 13 Schematic exploded view of the first lens, second lens, through-hole element, and light-shielding element of the imaging lens of the imaging module Figure 15 Illustrate Figure 13 Schematic exploded view of the second lens, through-hole element, and fixing element of the imaging lens of the imaging module Figure 16 Illustrate Figure 13 Schematic cross-sectional view of the imaging lens of the imaging module Figure 17 Illustrate Figure 16 Enlarged view of area EL5 Figure 18 Illustrate when the imaging lens is in the first environment Figure 17 Enlarged view of area EL6, and Figure 19 Illustrate when the imaging lens is in the second environment Figure 17 Enlarged view of area EL6

[0194] The imaging module includes an imaging lens 31 and an electronic photosensitive element 30, wherein the electronic photosensitive element 30 is disposed on an imaging surface 310 of the imaging lens 31

[0195] The imaging lens 31 includes an imaging lens group 311, a through-hole element 312, a fixing element 316, a light-shielding element 317, a filter element 318, and a lens barrel 319. The lens barrel 319 is used to carry the imaging lens group 311 and the through-hole element 312, and the filter element 318 is disposed between the imaging lens group 311 and the imaging surface 310

[0196] The imaging lens group 311 sequentially includes a first lens E1, a second lens E2, and a third lens E3 along the imaging optical path IOP of the imaging lens 31 from the image side to the object side. The first lens E1 has an optical portion E10, and the imaging optical path IOP passes through the optical portion E10 of the first lens E1

[0197] The third lens E3 is spaced from the first lens E1. The through-hole element 312 is disposed between the first lens E1 and the third lens E3, and the through-hole element 312 faces and is in physical contact with the object side of the first lens E1. The through-hole element 312 has the function of spacing adjacent two lenses. In addition, the through-hole element 312 is an opaque component, which includes an inner side surface 3121. The inner side surface 3121 surrounds the imaging optical path IOP and forms a through hole 3123, and the second lens E2 is disposed in the through hole 3123 and is in physical contact with the inner side surface 3121. Further, the second lens E2 is fixed in the through hole 3123 of the through-hole element 312 by the fixing element 316. In this embodiment, the through-hole element 312 is, for example, an opaque plastic part, ceramic part, or metal part

[0198] The through-hole component 312 further includes a first conical surface 3124, a second conical surface 3125, and a bearing surface 3126 on the side facing the first lens E1. The first conical surface 3124 surrounds the imaging optical path IOP with the imaging optical path IOP as the axis. The second conical surface 3125 surrounds the imaging optical path IOP with the imaging optical path IOP as the axis, and the second conical surface 3125 is closer to the through-hole 3123 than the first conical surface 3124. The bearing surface 3126 is substantially perpendicular to the imaging optical path IOP, and the bearing surface 3126 is in physical contact with the first lens E1.

[0199] The first lens E1 further includes a first corresponding conical surface E11 and a second corresponding conical surface E12 on the side facing the through-hole component 312, wherein the first corresponding conical surface E11 is arranged corresponding to the first conical surface 3124, and the second corresponding conical surface E12 is arranged corresponding to the second conical surface 3125.

[0200] The light-shielding element 317 is disposed between the first lens E1 and the through-hole component 312. Thereby, the light-shielding element 317 can shield non-imaging light to reduce the generation of glare, which helps to improve the imaging quality.

[0201] As Figure 18 shown, when the imaging lens 31 is in a first environment, the first conical surface 3124 is in physical contact with the first lens E1, and the second conical surface 3125 is spaced from the first lens E1. At this time, the through-hole 3123 of the through-hole component 312 is aligned with the optical part E10 of the first lens E1. Additionally, as Figure 19 shown, when the imaging lens 31 is in a second environment, the second conical surface 3125 is in physical contact with the first lens E1, and the first conical surface 3124 is spaced from the first lens E1. At this time, the through-hole 3123 of the through-hole component 312 is aligned with the optical part E10 of the first lens E1. Among them, the bearing surface 3126 of the through-hole component 312 remains in physical contact with the first lens E1 under the condition of environmental change. The first environment and the second environment have a temperature-dependent relationship. Among them, the temperature of the first environment is Ta, the temperature of the second environment is Tb, and they satisfy the following conditions: Ta = 293.1K; Tb = 273.1K; and |Ta - Tb| = 20K. Additionally, in this embodiment, the relative humidity of the first environment and the second environment is the same. For example, both are 30%, so the first environment and the second environment do not have a humidity-dependent relationship.

[0202] As Figure 18As shown, on a cross-section CS of the vertical imaging optical path IOP and passing through the first conical surface 3124, the first corresponding conical surface E11, the second conical surface 3125, and the second corresponding conical surface E12, the closest distance between the first conical surface 3124 and the second conical surface 3125 is D, and the shortest distance between the first corresponding conical surface E11 and the second corresponding conical surface E12 is d, which satisfy the following conditions: D = 0.322 mm; d = 0.32 mm; and |D - d| = 2 μm.

[0203] The included angle between the first conical surface 3124 and the second conical surface 3125 on the cross-section parallel to the imaging optical path IOP of the imaging lens is θ, which satisfies the following condition: θ = 30 degrees.

[0204] <Fourth Embodiment>

[0205] Please refer to Figures 20 to 26 , wherein Figure 20 FIG. shows a three-dimensional sectional schematic diagram of an imaging module according to the fourth embodiment of the present invention. Figure 21 FIG. shows Figure 20 a three-dimensional exploded schematic diagram of a first lens, a second lens, a through-hole element, and a light-shielding element of an imaging lens of the imaging module of Figure 22 FIG. shows Figure 20 a three-dimensional exploded schematic diagram of a second lens and a through-hole element of an imaging lens of the imaging module of Figure 23 FIG. shows Figure 20 a sectional schematic diagram of an imaging lens of the imaging module of Figure 24 FIG. shows Figure 23 an enlarged schematic diagram of the area EL7 of Figure 25 FIG. shows when the imaging lens is in the first environment Figure 24 an enlarged schematic diagram of the area EL8 of Figure 26 and FIG. shows when the imaging lens is in the second environment Figure 24 an enlarged schematic diagram of the area EL8 of

[0206] The imaging module includes an imaging lens 41 and an electronic photosensitive element 40, wherein the electronic photosensitive element 40 is disposed on an imaging surface 410 of the imaging lens 41.

[0207] The imaging lens 41 includes an imaging lens group 411, a through-hole element 412, a light-shielding element 417, a filter element 418, and a lens barrel 419. The lens barrel 419 is used to carry the imaging lens group 411 and the through-hole element 412, and the filter element 418 is disposed between the imaging lens group 411 and the imaging surface 410.

[0208] The imaging lens group 411 sequentially includes a first lens E1 and a second lens E2 from the image side to the object side along the imaging optical path IOP of the imaging lens 41. The first lens E1 has an optical portion E10, and the imaging optical path IOP passes through the optical portion E10 of the first lens E1.

[0209] The through-hole element 412 is disposed between the first lens E1 and the second lens E2, and the through-hole element 412 faces and is in physical contact with the object side of the first lens E1. The through-hole element 412 has the function of spacing two adjacent lenses. In addition, the through-hole element 412 is an opaque component, which can block the non-imaging light incident on the imaging lens 41 from the non-optical part E29 outside the optical part E20 of the second lens E2, thereby preventing the non-imaging light from entering the electronic photosensitive element 40. Thus, the through-hole element 412 has the function of reducing the non-imaging light entering the electronic photosensitive element 40.

[0210] The through-hole element 412 includes an inner side surface 4121 and an anti-reflection structure 4122. The inner side surface 4121 surrounds the imaging optical path IOP and forms a through hole 4123, and the anti-reflection structure 4122 covers at least a part of the inner side surface 4121. The anti-reflection structure 4122 is a concavo-convex structure formed by arranging a plurality of annular grooves surrounding the imaging optical path IOP, which can reduce the non-imaging light reflected by the inner side surface 4121 and entering the electronic photosensitive element 40, so that the through-hole element 412 has the function of reducing glare. In this embodiment, the through-hole element 412 is, for example, an opaque plastic part, a ceramic part or a metal part, the second lens E2 is, for example, a transparent plastic part or a glass part, and the through-hole element 412 and the second lens E2 are integrally formed by two-shot injection molding. The through-hole element 412 and the second lens E2 can be of the same material, and the through-hole element 412 is formed by adding an opaque colorant. Thereby, the bonding property between the through-hole element 412 and the second lens E2 is improved. The through-hole element 412 and the second lens E2 can also be of different materials, and the opaque part and the optical part can be further combined by an embedding method. Thereby, the bonding property between the optical part and the opaque part is improved.

[0211] On the side of the through-hole element 412 facing the first lens E1, it further includes a first conical surface 4124, a second conical surface 4125 and a bearing surface 4126. The first conical surface 4124 surrounds the imaging optical path IOP with the imaging optical path IOP as the axis. The second conical surface 4125 surrounds the imaging optical path IOP with the imaging optical path IOP as the axis, and the second conical surface 4125 is closer to the through hole 4123 than the first conical surface 4124. The bearing surface 4126 is substantially perpendicular to the imaging optical path IOP, and the bearing surface 4126 is in physical contact with the first lens E1.

[0212] On the side of the first lens E1 facing the through-hole element 412, it further includes a first corresponding conical surface E11 and a second corresponding conical surface E12, wherein the first corresponding conical surface E11 is correspondingly arranged with the first conical surface 4124, and the second corresponding conical surface E12 is correspondingly arranged with the second conical surface 4125.

[0213] The light-shielding element 417 is disposed between the first lens E1 and the through-hole element 412. Thereby, the light-shielding element 417 can shield non-imaging light to reduce the generation of glare, which helps to improve the imaging quality.

[0214] In this embodiment, the through-hole element 412 and the second lens E2 are integrally formed by two-shot molding, so that the through-hole element 412 can also be regarded as an opaque part of the second lens E2, which surrounds the optical part E20 of the second lens E2 and is farther from the imaging optical path IOP than the optical part E20 of the second lens E2.

[0215] As Figure 25 shown, when the imaging lens 41 is in a first environment, the first conical surface 4124 is in physical contact with the first lens E1, and the second conical surface 4125 is spaced from the first lens E1. At this time, the through-hole 4123 of the through-hole element 412 is aligned with the optical part E10 of the first lens E1. In addition, as Figure 26 shown, when the imaging lens 41 is in a second environment, the second conical surface 4125 is in physical contact with the first lens E1, and the first conical surface 4124 is spaced from the first lens E1. At this time, the through-hole 4123 of the through-hole element 412 is aligned with the optical part E10 of the first lens E1. Among them, the abutting surface 4126 of the through-hole element 412 remains in physical contact with the first lens E1 under the condition of environmental change.

[0216] In this embodiment, the first environment and the second environment have a temperature dependence relationship. The temperature of the first environment is Ta, and the temperature of the second environment is Tb, which satisfy the following conditions: Ta = 353.1K; Tb = 253.1K; and |Ta - Tb| = 100K.

[0217] In this embodiment, the first environment and the second environment also have a humidity dependence relationship. The relative humidity of the first environment is RHa, and the relative humidity of the second environment is RHb, which satisfy the following conditions: RHa = 90%; RHb = 20%; and |RHa - RHb| = 70%.

[0218] As Figure 26 shown, in the cross-section CS perpendicular to the imaging optical path IOP and passing through the first conical surface 4124, the first corresponding conical surface E11, the second conical surface 4125, and the second corresponding conical surface E12, the closest distance between the first conical surface 4124 and the second conical surface 4125 is D, and the shortest distance between the first corresponding conical surface E11 and the second corresponding conical surface E12 is d, which satisfy the following conditions: D = 0.32 mm; d = 0.336 mm; and |D - d| = 16 microns.

[0219] The included angle between the first conical surface 4124 and the second conical surface 4125 in the cross-section parallel to the imaging optical path IOP is θ, which satisfies the following condition: θ = 40 degrees.

[0220] <Fifth Embodiment>

[0221] Please refer to Figures 27 to 33 , wherein Figure 27 is a three-dimensional sectional view of an imaging module according to the fifth embodiment of the present invention, Figure 28 shows Figure 27 a three-dimensional exploded view of the first lens and the through-hole element of the imaging lens of the imaging module, Figure 29 shows Figure 27 a sectional view of the imaging lens of the imaging module along the section line 29-29, Figure 30 shows Figure 27 a sectional view of the imaging lens of the imaging module along the section line 30-30, Figure 31 shows Figure 30 an enlarged view of the area EL9, Figure 32 shows the enlarged view of the area EL10 when the imaging lens is in the first environment Figure 31 , and Figure 33 shows the enlarged view of the area EL10 when the imaging lens is in the second environment Figure 31 .

[0222] The imaging module includes an imaging lens 51 and an electronic photosensitive element 50, wherein the electronic photosensitive element 50 is disposed on an imaging surface 510 of the imaging lens 51.

[0223] The imaging lens 51 includes an imaging lens group 511, a through-hole element 512, a filter element 518, and a lens barrel 519. The lens barrel 519 is used to carry the imaging lens group 511 and the through-hole element 512, and the filter element 518 is disposed between the imaging lens group 511 and the imaging surface 510.

[0224] The imaging lens group 511 sequentially includes a first lens E1 and a second lens E2 along the imaging optical path IOP of the imaging lens 51 from the image side to the object side. The first lens E1 has an optical portion E10 and an opaque portion E19. The imaging optical path IOP passes through the optical portion E10 of the first lens E1. The opaque portion E19 surrounds the optical portion E10, and the opaque portion E19 and the optical portion E10 are integrally formed by two-shot injection molding to form the first lens E1. The opaque portion E19 and the optical portion E10 may be of the same material, and the opaque portion E19 is formed by adding an opaque colorant. Thereby, the bonding property between the opaque portion E19 and the optical portion E10 is improved. The opaque and optical portions may also be of different materials.

[0225] The through-hole element 512 is disposed between the first lens E1 and the second lens E2, and the through-hole element 512 faces and is in physical contact with the object side of the first lens E1. Specifically, the through-hole element 512 is in physical contact with the opaque portion E19 of the first lens E1. The through-hole element 512 has the function of spacing two adjacent lenses. In addition, the through-hole element 512 is an opaque component, which includes an inner side surface 5121 and an anti-reflection structure 5122, wherein the inner side surface 5121 surrounds the imaging optical path IOP and forms a through hole 5123, and the anti-reflection structure 5122 covers at least a part of the inner side surface 5121. In this embodiment, the through-hole element 512 is, for example, an opaque plastic part, a ceramic part or a metal part.

[0226] On the side of the through-hole element 512 facing the first lens E1, it further includes a first conical surface 5124, a second conical surface 5125 and a bearing surface 5126. The first conical surface 5124 surrounds the imaging optical path IOP with the imaging optical path IOP as the axis. The second conical surface 5125 surrounds the imaging optical path IOP with the imaging optical path IOP as the axis, and the second conical surface 5125 is closer to the through hole 5123 than the first conical surface 5124. The bearing surface 5126 is substantially perpendicular to the imaging optical path IOP, and the bearing surface 5126 is in physical contact with the first lens E1.

[0227] On the side of the opaque portion E19 of the first lens E1 facing the through-hole element 512, it further includes a first corresponding conical surface E11 and a second corresponding conical surface E12, wherein the first corresponding conical surface E11 is correspondingly arranged with the first conical surface 5124, and the second corresponding conical surface E12 is correspondingly arranged with the second conical surface 5125. Further, the opaque portion E19 further includes an inner side surface E191 and an anti-reflection structure E192, wherein the inner side surface E191 faces the imaging optical path IOP, and the anti-reflection structure E192 covers at least a part of the inner side surface E191.

[0228] In this embodiment, the inner side surface 5121 of the through-hole element 512 and the inner side surface E191 of the opaque portion E19 of the first lens E1 jointly form the anti-reflection structures 5122 and E192. The anti-reflection structures 5122 and E192 are structures recessed in a direction away from the imaging optical path IOP, which can prevent non-imaging light at high angles from being reflected by the inner side surfaces 5121 and E191 and entering the electronic photosensitive element 50, having the function of reducing glare. In addition, the inner side surface 5121 of the through-hole element 512 can be further provided with a coating with light absorption characteristics to further improve the imaging quality.

[0229] In this embodiment, the through-hole element 512 and the lenses of the imaging lens group 511 are all non-circular, whereby the size of the imaging lens 51 in a single direction can be reduced. As Figure 28As shown, the first conical surface 5124, the second conical surface 5125, the first corresponding conical surface E11, the second corresponding conical surface E12, and the bearing surface 5126 are shaped to conform to but not completely surround the imaging optical path IOP. Further, the first conical surface 5124, the second conical surface 5125, the first corresponding conical surface E11, the second corresponding conical surface E12, and the bearing surface 5126 are disposed on opposite sides of the imaging optical path IOP and formed into two C-shapes, and the opaque portions E19 of the first lens E1 are disposed on opposite sides of the optical portion E10.

[0230] As Figure 32 shown, when the imaging lens 51 is in a first environment, the first conical surface 5124 is in physical contact with the first lens E1, and the second conical surface 5125 is spaced from the first lens E1. At this time, the through hole 5123 of the through hole element 512 is aligned with the optical portion E10 of the first lens E1. Additionally, as Figure 33 shown, when the imaging lens 51 is in a second environment, the second conical surface 5125 is in physical contact with the first lens E1, and the first conical surface 5124 is spaced from the first lens E1. At this time, the through hole 5123 of the through hole element 512 is aligned with the optical portion E10 of the first lens E1. Among them, the bearing surface 5126 of the through hole element 512 remains in physical contact with the first lens E1 under the condition of environmental change. The first environment and the second environment have a temperature dependence relationship. The temperature of the first environment is Ta, and the temperature of the second environment is Tb, which satisfy the following conditions: Ta = 323.1K; Tb = 293.1K; and |Ta - Tb| = 30K. Additionally, in this embodiment, the relative humidity of the first environment and the second environment is the same. For example, both are 40%, so the first environment and the second environment do not have a humidity dependence relationship.

[0231] As Figure 33 shown, on the cross-section CS perpendicular to the imaging optical path IOP and passing through the first conical surface 5124, the first corresponding conical surface E11, the second conical surface 5125, and the second corresponding conical surface E12, the closest distance between the first conical surface 5124 and the second conical surface 5125 is D, and the shortest distance between the first corresponding conical surface E11 and the second corresponding conical surface E12 is d, which satisfy the following conditions: D = 0.32 mm; d = 0.322 mm; and |D - d| = 2 microns.

[0232] The included angle between the first conical surface 5124 and the second conical surface 5125 on the cross-section parallel to the imaging optical path IOP is θ, which satisfies the following condition: θ = 45 degrees.

[0233] <Sixth Embodiment>

[0234] Please refer to Figures 34 to 41 , in which Figure 34 is a schematic three-dimensional sectional view of an image pickup module according to the sixth embodiment of the present invention, Figure 35 showsFigure 34 Exploded perspective view of the first lens of the imaging lens of the imaging module and the through-hole element Figure 36 Illustrate Figure 34 Another perspective view of the first lens of the imaging lens of the imaging module and the through-hole element Figure 37 Illustrate Figure 34 Cross-sectional view of the imaging lens of the imaging module along the 37-37 section line Figure 38 Illustrate Figure 34 Cross-sectional view of the imaging lens of the imaging module along the 38-38 section line Figure 39 Illustrate Figure 38 Enlarged view of area EL11 Figure 40 Illustrate when the imaging lens is in the first environment Figure 39 Enlarged view of area EL12, and Figure 41 Illustrate when the imaging lens is in the second environment Figure 39 Enlarged view of area EL12

[0235] The imaging module includes an imaging lens 61 and an electronic photosensitive element 60, wherein the electronic photosensitive element 60 is disposed on an imaging surface 610 of the imaging lens 61.

[0236] The imaging lens 61 includes an imaging lens group 611, a through-hole element 612, a reflecting element 615, a filter element 618, and a lens barrel 619. The lens barrel 619 is used to carry the imaging lens group 611 and the through-hole element 612. The filter element 618 is disposed between the imaging lens group 611 and the imaging surface 610, and the reflecting element 615 is disposed between the imaging lens group 611 and the filter element 618.

[0237] The imaging lens group 611 sequentially includes a first lens E1 and a second lens E2 along the imaging optical path IOP of the imaging lens 61 from the object side to the image side. The first lens E1 has an optical portion E10 and an opaque portion E19. The imaging optical path IOP passes through the optical portion E10 of the first lens E1. The opaque portion E19 surrounds the optical portion E10, and the opaque portion E19 and the optical portion E10 are integrally formed by two-shot injection molding to form the first lens E1.

[0238] The through-hole element 612 is disposed between the first lens E1 and the second lens E2, and the through-hole element 612 faces and is in physical contact with the image side of the first lens E1. The through-hole element 612 has the function of spacing two adjacent lenses. In addition, the through-hole element 612 is an opaque component, which includes an inner side surface 6121, and the inner side surface 6121 surrounds the imaging optical path IOP and forms a through-hole 6123. In this embodiment, the through-hole element 612 is, for example, an opaque plastic part, ceramic part, or metal part.

[0239] The through-hole element 612 further includes a first conical surface 6124, a second conical surface 6125, and a bearing surface 6126 on the side facing the first lens E1. The first conical surface 6124 surrounds the imaging optical path IOP with the imaging optical path IOP as the axis. The second conical surface 6125 surrounds the imaging optical path IOP with the imaging optical path IOP as the axis, and the second conical surface 6125 is closer to the through-hole 6123 than the first conical surface 6124. The bearing surface 6126 is substantially perpendicular to the imaging optical path IOP, and the bearing surface 6126 is in physical contact with the first lens E1.

[0240] The first lens E1 further includes a first corresponding conical surface E11 and a second corresponding conical surface E12 on the side facing the through-hole element 612, wherein the first corresponding conical surface E11 is arranged corresponding to the first conical surface 6124, and the second corresponding conical surface E12 is arranged corresponding to the second conical surface 6125.

[0241] In this embodiment, the first lens E1 is a reflective lens, which sequentially includes an incident light surface ER1, a reflective surface ER2, and an exit light surface ER3 along the imaging optical path IOP from the object side to the image side, and the imaging optical path IOP turns at the reflective surface ER2.

[0242] As Figure 35 shown, the through-hole element 612 is non-circular, whereby it can be adapted to the reflective lens. In addition, the through-hole element 612 is further formed with a pair of reduced surfaces SS, and the reduced surfaces SS are tangent to the first conical surface 6124, the second conical surface 6125, and a part of the bearing surface 6126, so that the first conical surface 6124 and the second conical surface 6125 do not completely surround the imaging optical path IOP. The bearing surface 6126 is reduced in one direction perpendicular to the imaging optical path IOP. Further, the first conical surface 6124 and the second conical surface 6125 are arranged on opposite sides of the imaging optical path IOP and are formed into two C-shapes.

[0243] As Figure 40 shown, when the imaging lens 61 is in a first environment, the first conical surface 6124 is in physical contact with the first lens E1, and the second conical surface 6125 is spaced from the first lens E1. At this time, the through-hole 6123 of the through-hole element 612 is aligned with the optical portion E10 of the first lens E1. In addition, as Figure 41 shown, when the imaging lens 61 is in a second environment, the second conical surface 6125 is in physical contact with the first lens E1, and the first conical surface 6124 is spaced from the first lens E1. At this time, the through-hole 6123 of the through-hole element 612 is aligned with the optical portion E10 of the first lens E1. Among them, the bearing surface 6126 of the through-hole element 612 remains in physical contact with the first lens E1 under the condition of environmental change.

[0244] In this embodiment, the first environment and the second environment have a temperature dependence. The temperature of the first environment is Ta, and the temperature of the second environment is Tb, which satisfy the following conditions: Ta = 298.1K; Tb = 363.1K; and |Ta - Tb| = 65K.

[0245] In this embodiment, the first environment and the second environment also have a humidity dependence. The relative humidity of the first environment is RHa, and the relative humidity of the second environment is RHb, which satisfy the following conditions: RHa = 40%; RHb = 80%; and |RHa - RHb| = 40%.

[0246] As Figure 40 shown, on the cross-section CS of the vertical imaging optical path IOP and passing through the first conical surface 6124, the first corresponding conical surface E11, the second conical surface 6125, and the second corresponding conical surface E12, the closest distance between the first conical surface 6124 and the second conical surface 6125 is D, and the shortest distance between the first corresponding conical surface E11 and the second corresponding conical surface E12 is d, which satisfy the following conditions: D = 0.17 mm; d = 0.1 mm; and |D - d| = 10 μm.

[0247] The included angle between the first conical surface 6124 and the second conical surface 6125 on the cross-section parallel to the imaging optical path IOP is θ, which satisfies the following condition: θ = 41 degrees.

[0248] <Seventh Embodiment>

[0249] Please refer to Figures 42 to 44 , where Figure 42 is a perspective schematic diagram of an electronic device according to the seventh embodiment of the present invention, Figure 43 shows Figure 42 a perspective schematic diagram of the other side of the electronic device, and Figure 44 shows Figure 42 a system block diagram of the electronic device.

[0250] In this embodiment, the electronic device 7 is a mobile communication device, where the mobile communication device can be a computer, a smart phone, a smart wearable device, an aerial camera, or a vehicle-mounted image recording and display instrument, etc., and the present invention is not limited thereto. The electronic device 7 includes an imaging module 7a, an imaging module 7b, an imaging module 7c, an imaging module 7d, an imaging module 7e, an imaging module 7f, an imaging module 7g, an imaging module 7h, a light-emitting element 72, a focus assist module 73, an Image Signal Processor, a display device 75, an image software processor, and a biometric sensor 77.

[0251] The imaging modules 7a, 7b, 7c, 7d, 7e, 7f, 7g, and 7h may respectively include, for example, the imaging lens and the electronic photosensitive element of the present invention.

[0252] The imaging modules 7a, 7b, 7c, 7d, and 7e are all disposed on the same side of the electronic device 7. The imaging modules 7f, 7g, 7h, and the display device 75 are all disposed on the other side of the electronic device 7, and the display device 75 may be a user interface, so that the imaging modules 7f and 7g can be used as front cameras to provide a self - shooting function, but the present invention is not limited thereto.

[0253] The imaging module 7a is an ultra - telephoto imaging module, the imaging module 7b is a macro imaging module, the imaging module 7c is a wide - angle imaging module, the imaging module 7d is an ultra - wide - angle imaging module, the imaging module 7e is a telephoto imaging module, the imaging module 7f is an ultra - wide - angle imaging module, the imaging module 7g is a wide - angle imaging module, and the imaging module 7h is a Time of Flight (ToF) imaging module. The imaging modules 7a, 7b, 7c, 7d, and 7e of this embodiment have different viewing angles, enabling the electronic device 7 to provide different magnification ratios to achieve an optical zoom shooting effect. For example, the ultra - wide - angle imaging module 7d has a maximum viewing angle of 105 degrees to 125 degrees, and it can achieve an image with an equivalent focal length between 11 mm and 14 mm. The image captured in this case can be referred to Figure 45 , which is a schematic diagram of the image captured by the electronic device 7 with an equivalent focal length between 11 mm and 14 mm, and the captured image includes the entire church, surrounding buildings, and people on the square. Figure 45 The image of has a larger viewing angle and depth of field, but often has a larger distortion. The wide - angle imaging module 7c has a maximum viewing angle of 70 degrees to 90 degrees, and it can achieve an image with an equivalent focal length between 22 mm and 30 mm. The image captured in this case can be referred to Figure 46 , which is a schematic diagram of the image captured by the electronic device 7 with an equivalent focal length between 22 mm and 30 mm, and the captured image includes the entire church and the people in front of the church. The telephoto imaging module 7e has a maximum viewing angle of 10 degrees to 40 degrees, and it can achieve an image with an equivalent focal length between 60 mm and 300 mm, and the telephoto imaging module 7e can be regarded as providing a 5 - fold magnification. The image captured in this case can be referred to Figure 47 , which is a schematic diagram of the image captured by the electronic device 7 with an equivalent focal length between 60 mm and 300 mm, and the captured image includes flocks of birds flying in front of the church.Figure 47 The image has a smaller viewing angle and depth of field, enabling the telephoto imaging module 7e to be used for photographing moving objects. The lens driving module drives the imaging lens to perform fast and continuous autofocus on the object, so that the object will not become blurred due to moving away from the focus position. When taking images, the telephoto imaging module 7e can further perform optical zoom on the shooting subject to obtain a clearer image. The magnification of the imaging module is defined as the ratio of the maximum focal length to the minimum focal length. Taking this imaging module as an example, the magnification is 5 times. The ultra-telephoto imaging module 7a has a maximum viewing angle of 4 degrees to 8 degrees, and it can achieve an image with an equivalent focal length between 400 mm and 600 mm. The image captured in this case can be referred to Figure 48 , which is a schematic diagram of the image captured by the electronic device 7 with an equivalent focal length between 400 mm and 600 mm. The captured image includes an angel statue and a cross above the church spire. Figure 48 The image has an even smaller viewing angle and depth of field, making the imaging lens of the ultra-telephoto imaging module 7a more prone to defocus due to jitter. Therefore, when the lens driving module provides a driving force to focus the imaging lens of the ultra-telephoto imaging module 7a on the object, it can simultaneously provide a feedback force to correct jitter to achieve the effect of optical image stabilization. In addition, the imaging module 7h can obtain the depth information of the image. The above electronic device 7 takes the example of including multiple imaging modules 7a, 7b, 7c, 7d, 7e, 7f, 7g, 7h, but the number and configuration of the imaging modules are not used to limit the present invention. The equivalent focal length corresponding to the above imaging module is an estimated value after conversion, and it may be different from the actual focal length due to the design of the imaging lens and the size of the electronic photosensitive element.

[0254] When the user photographs the object OBJ, the electronic device 7 uses the imaging module 7a, imaging module 7b, imaging module 7c, imaging module 7e or imaging module 7f to collect light and take images, activates the light-emitting element 72 for fill light, and uses the object distance information of the object OBJ provided by the focus assist module 73 for fast focusing. Coupled with the image signal processor for image optimization processing, the image quality generated by the imaging lens is further improved. The focus assist module 73 can adopt an infrared or laser focus assist system to achieve fast focusing.

[0255] In addition, the electronic device 7 can also use the imaging module 7f, imaging module 7g, or imaging module 7h for shooting. When the imaging module 7f, imaging module 7g, or imaging module 7h is shooting, a reminder light 7k can emit light to remind the user that the electronic device 7 is in the process of shooting. The display device 75 can adopt a touch screen or physical shooting buttons such as a zoom control button 751 and a focus and shoot button 752, and cooperate with the diverse functions of the image software processor to perform image shooting and image processing. The image processed by the image software processor can be displayed on the display device 75. The user can also replay the previously shot image through the image playback button 753 of the display device 75, can also select a suitable imaging module for shooting through the imaging module switching button 754, and can also adjust the suitable shooting conditions for the current shooting scene through the integrated menu button 755.

[0256] Furthermore, the electronic device 7 further includes a circuit board 78, and the circuit board 78 carries a plurality of electronic components 79. The imaging modules 7a, 7b, 7c, 7d, 7e, 7f, 7g, 7h are electrically connected to the electronic components 79 through the connector 781 on the circuit board 78, and the electronic components 79 may include a signal transmission module, and the image can be transmitted to other electronic devices or cloud storage through the signal transmission module. Among them, the signal transmission module can be a Wireless Fidelity (WiFi) module, a Bluetooth module, an infrared module, a network service module, or an integrated module of the above multiple signal transmissions. The present invention is not limited thereto.

[0257] The electronic component 79 may also include a storage unit, a random access memory to store image signals, a gyroscope, and a position locator to facilitate the navigation or positioning of the electronic device 7. In this embodiment, the image signal processor, the image software processor, and the random access memory are integrated into a single chip system 74, but the present invention is not limited to this configuration. In some other embodiments, the electronic components may also be integrated into the imaging module or may be disposed on one of the multiple circuit boards. In addition, the biometric sensor 77 can provide functions such as powering on and unlocking the electronic device 7.

[0258] The imaging lens of the present invention is not limited to being applied to smart phones. The imaging lens can also be applied to a mobile focusing system as required, and has the characteristics of excellent aberration correction and good imaging quality. For example, the imaging lens can be applied to various electronic devices such as three-dimensional (3D) image capture, digital cameras, mobile communication devices, tablet computers, smart TVs, network monitoring devices, dash cams, reverse imaging devices, multi-lens devices, identification systems, motion sensing game consoles, and wearable devices. The above-mentioned electronic devices are only exemplary illustrations of the actual application examples of the present invention, and do not limit the application scope of the imaging lens of the present invention.

[0259] Although the present invention has been disclosed above in the foregoing embodiments, these embodiments are not intended to limit the present invention. Any person skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the appended claims.

Claims

1. An imaging lens, characterized in that, The imaging lens includes: a first lens having an optical portion through which an imaging optical path of the imaging lens passes; and a through-hole element surrounding the imaging optical path and forming a through-hole, and the through-hole element faces and is in physical contact with the object side or the image side of the first lens; wherein, one side of the through-hole element facing the first lens includes: a first conical surface surrounding the imaging optical path with the imaging optical path as the axis; a second conical surface surrounding the imaging optical path with the imaging optical path as the axis, and the second conical surface is closer to the through-hole than the first conical surface; and a bearing surface substantially perpendicular to the imaging optical path, and the bearing surface is in physical contact with the first lens; wherein, when the imaging lens is in a first environment, the first conical surface is in physical contact with the first lens, the second conical surface is spaced from the first lens, and the through-hole is aligned with the optical portion; wherein, when the imaging lens is in a second environment, the second conical surface is in physical contact with the first lens, the first conical surface is spaced from the first lens, and the through-hole is aligned with the optical portion; wherein, the first lens further includes a first corresponding conical surface and a second corresponding conical surface, the first corresponding conical surface is correspondingly arranged with the first conical surface, and the second corresponding conical surface is correspondingly arranged with the second conical surface; wherein, in a cross-section perpendicular to the imaging optical path and passing through the first conical surface, the first corresponding conical surface, the second conical surface and the second corresponding conical surface, the shortest distance between the first conical surface and the second conical surface is D, and the shortest distance between the first corresponding conical surface and the second corresponding conical surface is d, which satisfies the following conditions: 0.2 μm ≤ |D - d| ≤ 19.8 μm; wherein, the first environment and the second environment have at least one of the following relationships: a temperature-dependent relationship, wherein the temperature of the first environment is Ta and the temperature of the second environment is Tb, which satisfies the following conditions: 6K ≤ |Ta - Tb| ≤ 198K; and a humidity-dependent relationship, wherein the relative humidity of the first environment is RHa and the relative humidity of the second environment is RHb, which satisfies the following conditions: 14% ≤ |RHa - RHb| ≤ 81%.

2. The imaging lens according to claim 1, wherein The first lens further includes an opaque portion surrounding the optical portion, the opaque portion is formed with the first corresponding conical surface and the second corresponding conical surface, and the opaque portion and the optical portion are integrally formed into the first lens by double-shot molding.

3. The imaging lens according to claim 1, wherein, The included angle between the first conical surface and the second conical surface in a cross-section parallel to the imaging optical path is θ, which satisfies the following conditions: 12° ≤ θ ≤ 145°.

4. The imaging lens according to claim 1, wherein, The imaging lens further includes a second lens, wherein the through-hole element further includes an inner side surface surrounding the imaging optical path and forming the through-hole, and the second lens is disposed in the through-hole and is in physical contact with the inner side surface.

5. The imaging lens according to claim 1, wherein, The through-hole element further includes an inner side surface and an anti-reflection structure, the inner side surface surrounds the imaging optical path and forms the through-hole, and the anti-reflection structure covers at least a part of the inner side surface.

6. The imaging lens according to claim 1, wherein The imaging lens further includes a second lens, wherein the second lens and the through-hole element are integrally formed by double-shot molding.

7. The imaging lens according to claim 1, wherein The first lens is a reflective lens. Along the imaging optical path from the object side to the image side, the first lens sequentially includes an incident light surface, at least one reflective surface, and an exit light surface, and the imaging optical path turns at the at least one reflective surface.

8. The imaging lens according to claim 1, wherein, The imaging lens further includes a light-shielding element, and the light-shielding element is disposed between the first lens and the through-hole element.

9. The imaging lens according to claim 1, wherein At least one of the first conical surface and the second conical surface does not completely surround the imaging optical path.

10. The imaging lens according to claim 1, wherein The through-hole element is an opaque element.

11. The imaging lens according to claim 1, wherein The imaging lens further includes a third lens, the third lens is disposed at an interval from the first lens, and the through-hole element is disposed between the first lens and the third lens.

12. An imaging lens, characterized in that, The imaging lens includes: a first through-hole element, surrounding an imaging optical path of the imaging lens and forming a first through-hole; and a second through-hole element, surrounding the imaging optical path and forming a second through-hole, and the second through-hole element faces and is in physical contact with the object side or the image side of the first through-hole element; Wherein, one side of the first through-hole element facing the second through-hole element includes: a first conical surface, surrounding the imaging optical path with the imaging optical path as the axis; a second conical surface, surrounding the imaging optical path with the imaging optical path as the axis, and the second conical surface is closer to the first through-hole than the first conical surface; and a bearing surface, substantially perpendicular to the imaging optical path, and the bearing surface is in physical contact with the second through-hole element; Wherein, when the imaging lens is in a first environment, the first conical surface is in physical contact with the second through-hole element, the second conical surface is spaced from the second through-hole element, and the first through-hole is aligned with the second through-hole; Wherein, when the imaging lens is in a second environment, the second conical surface is in physical contact with the second through-hole element, the first conical surface is spaced from the second through-hole element, and the first through-hole is aligned with the second through-hole; Wherein, the second through-hole element further includes a first corresponding conical surface and a second corresponding conical surface, the first corresponding conical surface is correspondingly disposed with the first conical surface, and the second corresponding conical surface is correspondingly disposed with the second conical surface; Wherein, in a cross-section perpendicular to the imaging optical path and passing through the first conical surface, the first corresponding conical surface, the second conical surface, and the second corresponding conical surface, the shortest distance between the first conical surface and the second conical surface is D, and the shortest distance between the first corresponding conical surface and the second corresponding conical surface is d, which satisfies the following conditions: 0.2 μm ≤ |D - d| ≤ 19.8 μm; Wherein, the first environment and the second environment have at least one of the following relationships: a temperature dependence relationship, wherein the temperature of the first environment is Ta, and the temperature of the second environment is Tb, which satisfies the following conditions: 6K ≤ |Ta - Tb| ≤ 198K; and a humidity dependence relationship, wherein the relative humidity of the first environment is RHa, and the relative humidity of the second environment is RHb, which satisfies the following conditions: 14% ≤ |RHa - RHb| ≤ 81%.

13. The imaging lens according to claim 12, wherein The included angle between the first conical surface and the second conical surface in a cross-section parallel to the imaging optical path is θ, which satisfies the following conditions: 12 degrees ≤ θ ≤ 145 degrees.

14. The imaging lens according to claim 12, wherein The imaging lens further includes a first lens. The first through-hole element further includes an inner side surface that surrounds the imaging optical path and forms the first through-hole, and the first lens is disposed in the first through-hole and is in physical contact with the inner side surface.

15. The imaging lens according to claim 12, characterized in that, The first through-hole element further includes an inner side surface and an anti-reflection structure. The inner side surface surrounds the imaging optical path and forms the first through-hole, and the anti-reflection structure covers at least a part of the inner side surface.

16. The imaging lens according to claim 12, wherein, The imaging lens further includes a first lens, wherein the first lens and the first through-hole element are integrally formed by two-shot molding.

17. The imaging lens according to claim 16, wherein The first lens is a reflective lens. The first lens sequentially includes an incident light surface, at least one reflective surface, and an exit light surface along the imaging optical path from the object side to the image side, and the imaging optical path turns at the at least one reflective surface.

18. The imaging lens according to claim 12, characterized in that, The imaging lens further includes a light-shielding element, wherein the light-shielding element is disposed between the first through-hole element and the second through-hole element.

19. The imaging lens according to claim 12, wherein At least one of the first conical surface and the second conical surface does not completely surround the imaging optical path.

20. The imaging lens according to claim 12, wherein, Both the first through-hole element and the second through-hole element are opaque elements.

21. An imaging lens, characterized in that, The imaging lens includes: a first lens having a first optical portion through which an imaging optical path of the imaging lens passes; and a second lens including a second optical portion and an opaque portion. The imaging optical path passes through the second optical portion. The opaque portion is farther from the imaging optical path than the second optical portion, and the opaque portion faces and is in physical contact with the object side or the image side of the first lens; wherein, the side of the opaque portion facing the first lens includes: a first conical surface that surrounds the imaging optical path with the imaging optical path as the axis; a second conical surface that surrounds the imaging optical path with the imaging optical path as the axis, and the second conical surface is closer to the second optical portion than the first conical surface; and a bearing surface substantially perpendicular to the imaging optical path, and the bearing surface is in physical contact with the first lens. When the imaging lens is in a first environment, the first conical surface is in physical contact with the first lens, the second conical surface is spaced apart from the first lens, and the first optical portion is aligned with the second optical portion; wherein, when the imaging lens is in a second environment, the second conical surface is in physical contact with the first lens, the first conical surface is spaced apart from the first lens, and the first optical portion is aligned with the second optical portion; wherein, the first lens further includes a first corresponding conical surface and a second corresponding conical surface, the first corresponding conical surface is correspondingly disposed with the first conical surface, and the second corresponding conical surface is correspondingly disposed with the second conical surface; wherein, on a cross-section perpendicular to the imaging optical path and passing through the first conical surface, the first corresponding conical surface, the second conical surface, and the second corresponding conical surface, the shortest distance between the first conical surface and the second conical surface is D, and the shortest distance between the first corresponding conical surface and the second corresponding conical surface is d, which satisfies the following conditions: 0.2 μm ≤ |D - d| ≤ 19.8 μm; wherein, the first environment and the second environment have at least one of the following relationships: a temperature-dependent relationship, wherein the temperature of the first environment is Ta and the temperature of the second environment is Tb, which satisfies the following conditions: 6K ≤ |Ta - Tb| ≤ 198K; and A humidity dependency relationship, where the relative humidity of the first environment is RHa and the relative humidity of the second environment is RHb, which satisfies the following conditions: 14% ≤ |RHa - RHb| ≤ 81%.

22. The imaging lens according to claim 21, wherein, The included angle between the first conical surface and the second conical surface in a cross-section parallel to the imaging optical path is θ, which satisfies the following conditions: 12 degrees ≤ θ ≤ 145 degrees.

23. The imaging lens according to claim 21, wherein, The opaque portion further includes an inner side surface and an anti-reflection structure. The inner side surface faces the imaging optical path, and the anti-reflection structure covers at least a part of the inner side surface.

24. The imaging lens according to claim 21, wherein One of the first lens and the second lens is a reflective lens. The reflective lens sequentially includes an incident light surface, at least one reflective surface, and an exit light surface along the imaging optical path from the object side to the image side, and the imaging optical path turns at the at least one reflective surface.

25. The imaging lens according to claim 21, wherein, The imaging lens further includes a light-shielding element, where the light-shielding element is disposed between the first lens and the second lens.

26. The imaging lens according to claim 21, wherein At least one of the first conical surface and the second conical surface does not completely surround the imaging optical path.

27. The imaging lens according to claim 21, wherein The opaque portion and the second optical portion are integrally formed into the second lens through double-shot molding. The opaque portion is a through-hole element, and the opaque portion surrounds the imaging optical path and forms a through-hole.

28. An imaging module, characterized in that, The image capturing module includes: The imaging lens according to claim 1, claim 12, or claim 21; and An electronic photosensitive element disposed on an imaging surface of the imaging lens.

29. An electronic device, characterized in that, The electronic device includes: The image capturing module according to claim 28.

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