Imaging lens and electronic device

Abstract

An imaging lens and an electronic device are disclosed. The imaging lens includes a first lens, a second lens, a lens barrel, and two space adjustment structures. The first lens includes a first peripheral portion, the second lens includes a second peripheral portion, and the lens barrel includes a cylindrical portion and a plate-shaped portion. The first peripheral portion of the first lens and the plate-shaped portion of the lens barrel form a first space adjustment structure, and the first peripheral portion of the first lens and the second peripheral portion of the second lens form a second space adjustment structure. Each of the space adjustment structures includes a tapered surface, a space tapered surface, a corresponding structure, and a space interlayer. The tapered surface is disposed on the first peripheral portion and the second peripheral portion. The space tapered surface is disposed on the first peripheral portion and the second peripheral portion. The corresponding structure is disposed on the plate-shaped portion and the first peripheral portion. The space interlayer is formed between the space tapered surface and the corresponding structure, so that the space tapered surface and the corresponding structure are spaced apart. Thus, the optical quality is maintained stable.

Description

Technical Field

[0001] This disclosure relates to an imaging lens, and more particularly to an imaging lens used in portable electronic devices. Background Technology

[0002] In recent years, portable electronic devices have developed rapidly, such as smart electronic devices and tablet computers, which have become ubiquitous in modern life. Imaging lenses mounted on these devices have also flourished. However, as technology advances, users' demands for the quality of imaging lenses are increasing. Therefore, developing an imaging lens that can maintain assembly stability under varying environmental conditions has become an important and urgent problem for the industry. Summary of the Invention

[0003] This disclosure provides an imaging lens and electronic device that maintains assembly stability under varying environmental conditions through a spatial adjustment structure. Specifically, the spatial adjustment structure has a spatial interlayer whose volume can change with environmental conditions. This spatial interlayer avoids interference stress caused by different expansion rates between optical elements and reduces deformation caused by stress, thereby maintaining stable image quality.

[0004] According to one embodiment of this disclosure, an imaging lens is provided, comprising a first lens, a second lens, a third lens, and two spatial adjustment structures, with an optical axis passing through the imaging lens. The first lens includes a first optically effective portion and a first peripheral portion, wherein the optical axis passes through the first optically effective portion, and the first peripheral portion is disposed around the first optically effective portion. The second lens is disposed on the image side of the first lens and includes a second optically effective portion and a second peripheral portion, wherein the optical axis passes through the second optically effective portion, the second peripheral portion is disposed around the second optically effective portion, and an object-side surface of the second peripheral portion is in solid contact with an image-side surface of the first peripheral portion. The third lens is disposed on the image side of the second lens and includes a third optically effective portion and a third peripheral portion, wherein the optical axis passes through the third optically effective portion, the third peripheral portion is disposed around the third optically effective portion, and an object-side surface of the third peripheral portion is in solid contact with an image-side surface of the second peripheral portion. The first peripheral portion of the first lens and the second peripheral portion of the second lens form one of the spatial adjustment structures, and the second peripheral portion of the second lens and the third peripheral portion of the third lens form the other of the spatial adjustment structures. One of the spatial adjustment structures includes a conical surface, a spatial conical surface, a corresponding structure, and a spatial interlayer. The conical surface is disposed on the object-side surface of the second periphery and surrounds the optical axis, with one object-side end of the conical surface farther from the optical axis than one image-side end. The spatial conical surface is disposed on the object-side surface of the second periphery and surrounds the optical axis, with one object-side end of the spatial conical surface closer to the optical axis than one image-side end. The corresponding structure is disposed on the image-side surface of the first periphery and corresponds to the conical surface and the spatial conical surface. The spatial interlayer is formed between the spatial conical surface and the corresponding structure, thus spacing the spatial conical surface and the corresponding structure apart. The other of the spatial adjustment structures includes a conical surface, a spatial conical surface, a corresponding structure, and a spatial interlayer. The conical surface is disposed on the object-side surface of the third periphery and surrounds the optical axis, with one object-side end of the conical surface closer to the optical axis than one image-side end. The spatial conical surface is disposed on the object-side surface of the third periphery and surrounds the optical axis, with one object-side end of the spatial conical surface farther from the optical axis than one image-side end. The corresponding structure is disposed on the image-side surface of the second peripheral portion and is disposed corresponding to the conical surface and the spatial conical surface. A spatial interlayer is formed between the spatial conical surface and the corresponding structure, such that the spatial conical surface and the corresponding structure are spaced apart. When the imaging lens is in a first environment, the shortest interval between the spatial conical surface of one of the spatial adjustment structures and the corresponding structure is Gγ, and the shortest interval between the spatial conical surface of the other spatial adjustment structure and the corresponding structure is Gδ; when the imaging lens is in a second environment, the shortest interval between the spatial conical surface of one of the spatial adjustment structures and the corresponding structure is Gγ', and the shortest interval between the spatial conical surface of the other spatial adjustment structure and the corresponding structure is Gδ'; the Abbe number of the second lens is Vd, which satisfies the following conditions: 3 μm ≤ Gγ' < Gγ ≤ 38 μm; 3 μm ≤ Gδ' < Gδ ≤ 39 μm; and 8 ≤ Vd ≤ 29.The first environment and the second environment satisfy at least one of a temperature dependence and a humidity dependence: the temperature of the first environment is Ta, the temperature of the second environment is Tb, and the temperature dependence satisfies the following condition: 6K ≤ |Ta-Tb| ≤ 148K; and the relative humidity of the first environment is RHa, the relative humidity of the second environment is RHb, and the humidity dependence satisfies the following condition: 7% ≤ |RHa-RHb| ≤ 89%.

[0005] According to the imaging lens of the embodiment described above, the Abbe number of the second lens is Vd, which satisfies the following condition: 8 ≤ Vd ≤ 22. Additionally, it satisfies the following condition: 8 ≤ Vd ≤ 20.5.

[0006] According to the imaging lens of the embodiment described above, when the imaging lens is in the first environment, the conical surface of one of the spatial adjustment structures can be in physical contact with the corresponding structure.

[0007] According to the imaging lens of the embodiment described above, when the imaging lens is in the second environment, the conical surface of one of the spatial adjustment structures and the corresponding structure can be set at intervals.

[0008] According to the imaging lens of the embodiment described above, when the imaging lens is in the first environment, the conical surface of the other in the spatial adjustment structure can be in physical contact with the corresponding structure.

[0009] According to the imaging lens of the embodiment described above, when the imaging lens is in the second environment, the conical surface of the other in the spatial adjustment structure and the corresponding structure can be set at intervals.

[0010] According to the imaging lens of the embodiment described above, the second peripheral portion may include a bearing surface, the bearing surface being perpendicular to the optical axis and in solid contact with the first peripheral portion.

[0011] According to the imaging lens of the embodiment described above, the angle between the conical surface of one of the spatial adjustment structures and the spatial conical surface on a cross section along the optical axis is θγ, which can satisfy the following conditions: 18 degrees ≤ θγ ≤ 130 degrees.

[0012] According to the imaging lens of the embodiment described above, the angle between the conical surface of the other component of the spatial adjustment structure and the spatial conical surface on a cross section along the optical axis is θδ, which can satisfy the following conditions: 18 degrees ≤ θδ ≤ 130 degrees.

[0013] According to the imaging lens of the embodiment described above, the diameter of the first lens may be smaller than the diameter of the second lens, and the diameter of the second lens may be smaller than the diameter of the third lens.

[0014] According to one embodiment of this disclosure, an imaging lens is provided, comprising a first lens, a second lens, a third lens, and two spatial adjustment structures, with an optical axis passing through the imaging lens. The first lens includes a first optically effective portion and a first peripheral portion, wherein the optical axis passes through the first optically effective portion, and the first peripheral portion is disposed around the first optically effective portion. The second lens is disposed on the image side of the first lens and includes a second optically effective portion and a second peripheral portion, wherein the optical axis passes through the second optically effective portion, the second peripheral portion is disposed around the second optically effective portion, and an object-side surface of the second peripheral portion is in solid contact with an image-side surface of the first peripheral portion. The third lens is disposed on the image side of the second lens and includes a third optically effective portion and a third peripheral portion, wherein the optical axis passes through the third optically effective portion, the third peripheral portion is disposed around the third optically effective portion, and an object-side surface of the third peripheral portion is in solid contact with an image-side surface of the second peripheral portion. The first peripheral portion of the first lens and the second peripheral portion of the second lens form one of the spatial adjustment structures, and the second peripheral portion of the second lens and the third peripheral portion of the third lens form the other of the spatial adjustment structures. One of the spatial adjustment structures includes a conical surface, a spatial conical surface, a corresponding structure, and a spatial interlayer. The conical surface is disposed on the object-side surface of the second periphery and surrounds the optical axis, with one object-side end of the conical surface farther from the optical axis than one image-side end. The spatial conical surface is disposed on the object-side surface of the second periphery and surrounds the optical axis, with one object-side end of the spatial conical surface closer to the optical axis than one image-side end. The corresponding structure is disposed on the image-side surface of the first periphery and corresponds to both the conical surface and the spatial conical surface. A spatial interlayer is formed between the spatial conical surface and the corresponding structure, thus spacing the spatial conical surface and the corresponding structure apart. The other of the spatial adjustment structures includes a conical surface and a corresponding structure. The conical surface is disposed on the object-side surface of the third periphery and surrounds the optical axis, with one object-side end of the conical surface closer to the optical axis than one image-side end. The corresponding structure is disposed on the image-side surface of the second periphery and corresponds to the conical surface. When the imaging lens is in a first environment, the shortest interval between the spatial cone surface of one of the spatial adjustment structures and the corresponding structure is Gγ; when the imaging lens is in a second environment, the shortest interval between the spatial cone surface of one of the spatial adjustment structures and the corresponding structure is Gγ'; the Abbe number of the second lens is Vd, which satisfies the following conditions: 3 μm ≤ Gγ' < Gγ ≤ 38 μm; and 8 ≤ Vd ≤ 29. The first environment and the second environment satisfy at least one of a temperature dependence and a humidity dependence: the temperature of the first environment is Ta, the temperature of the second environment is Tb, and the temperature dependence satisfies the following condition: 6K ≤ |Ta-Tb| ≤ 148K; and the relative humidity of the first environment is RHa, the relative humidity of the second environment is RHb, and the humidity dependence satisfies the following condition: 7% ≤ |RHa-RHb| ≤ 89%.

[0015] According to the imaging lens of the embodiment described above, the Abbe number of the second lens is Vd, which satisfies the following condition: 8 ≤ Vd ≤ 22. Additionally, it satisfies the following condition: 8 ≤ Vd ≤ 20.5.

[0016] According to the imaging lens of the embodiment described above, when the imaging lens is in the first environment, the conical surface of one of the spatial adjustment structures can be in physical contact with the corresponding structure.

[0017] According to the imaging lens of the embodiment described above, when the imaging lens is in the second environment, the conical surface of one of the spatial adjustment structures and the corresponding structure can be set at intervals.

[0018] According to the imaging lens of the embodiment described above, when the imaging lens is in the first environment, the conical surface of the other in the spatial adjustment structure can be in physical contact with the corresponding structure.

[0019] According to the imaging lens of the embodiment described above, when the imaging lens is in the second environment, the conical surface of the other in the spatial adjustment structure and the corresponding structure can be set at intervals.

[0020] According to the imaging lens of the embodiment described above, the second peripheral portion may include a bearing surface, the bearing surface being perpendicular to the optical axis and in solid contact with the first peripheral portion.

[0021] According to the imaging lens of the embodiment described above, the angle between the conical surface of one of the spatial adjustment structures and the spatial conical surface on a cross section along the optical axis is θγ, which can satisfy the following conditions: 18 degrees ≤ θγ ≤ 130 degrees.

[0022] According to the imaging lens of the embodiment described above, the diameter of the first lens may be smaller than the diameter of the second lens, and the diameter of the second lens may be smaller than the diameter of the third lens.

[0023] According to one embodiment of the present disclosure, an electronic device is provided, including an imaging lens as described in the foregoing embodiments. Attached Figure Description

[0024] Figure 1A A partial cross-sectional view of the imaging lens according to the first embodiment of this disclosure is shown;

[0025] Figure 1B Drawing according to Figure 1A A schematic diagram of the imaging lens in the first embodiment;

[0026] Figure 1C Drawing according to Figure 1B A schematic diagram of the space adjustment structure in the first environment according to the first embodiment;

[0027] Figure 1DDrawing according to Figure 1B A schematic diagram of the space adjustment structure in the second environment in the first embodiment;

[0028] Figure 1E Drawing according to Figure 1B A schematic diagram of the space adjustment structure in the first environment according to the first embodiment;

[0029] Figure 1F Drawing according to Figure 1B A schematic diagram of the space adjustment structure in the second environment in the first embodiment;

[0030] Figure 1G Drawing according to Figure 1A An exploded view of the lens barrel and lens in the first embodiment;

[0031] Figure 1H Drawing according to Figure 1A An exploded view of the lens in the first embodiment;

[0032] Figure 1I Drawing according to Figure 1A Partial exploded view of the mirror tube in the first embodiment;

[0033] Figure 2A A partial cross-sectional view of the imaging lens according to the second embodiment of this disclosure is shown;

[0034] Figure 2B Drawing according to Figure 2A A schematic diagram of the imaging lens in the second embodiment;

[0035] Figure 2C Drawing according to Figure 2B A schematic diagram of the space adjustment structure in the first environment in the second embodiment;

[0036] Figure 2D Drawing according to Figure 2B A schematic diagram of the space adjustment structure in the second environment in the second embodiment;

[0037] Figure 2E Drawing according to Figure 2A An exploded view of the lens barrel and lens in the second embodiment;

[0038] Figure 3A A partial cross-sectional view of the imaging lens according to the third embodiment of this disclosure is shown;

[0039] Figure 3B Drawing according to Figure 3A A schematic diagram of the imaging lens in the third embodiment;

[0040] Figure 3C Drawing according to Figure 3BA schematic diagram of the space adjustment structure in the first environment in the first embodiment of the third implementation;

[0041] Figure 3D Drawing according to Figure 3B A schematic diagram of the space adjustment structure in the second environment in the first embodiment of the third implementation;

[0042] Figure 3E Drawing according to Figure 3B A schematic diagram of the space adjustment structure in the first environment in the first embodiment of the third implementation;

[0043] Figure 3F Drawing according to Figure 3B A schematic diagram of the space adjustment structure in the second environment in the first embodiment of the third implementation;

[0044] Figure 3G Drawing according to Figure 3A An exploded view of the lens in the first embodiment of the third embodiment;

[0045] Figure 3H Drawing according to Figure 3A An exploded view of the lens in the first embodiment of the third embodiment;

[0046] Figure 3I Drawing according to Figure 3B A schematic diagram of the space adjustment structure in the first environment in the second embodiment of the third implementation;

[0047] Figure 3J Drawing according to Figure 3B A schematic diagram of the space adjustment structure in the second environment in the second embodiment of the third implementation;

[0048] Figure 3K Drawing according to Figure 3B A schematic diagram of the space adjustment structure in the first environment in the second embodiment of the third implementation;

[0049] Figure 3L Drawing according to Figure 3B A schematic diagram of the space adjustment structure in the second environment in the second embodiment of the third implementation;

[0050] Figure 4A A schematic diagram of the vehicle tool according to the fourth embodiment of this disclosure is shown;

[0051] Figure 4B Drawing according to Figure 4A Another schematic diagram of the vehicle tools in the fourth embodiment;

[0052] Figure 4C Drawing according to Figure 4A Another schematic diagram of the vehicle tools in the fourth embodiment;

[0053] Figure 4D Drawing according to Figure 4A Another schematic diagram of the vehicle tools in the fourth embodiment;

[0054] Figure 5A A schematic diagram illustrating the electronic device according to the fifth embodiment of this disclosure; and

[0055] Figure 5B Drawing according to Figure 5A Block diagram of the electronic device in the fifth embodiment.

[0056] [Symbol Explanation]

[0057] 100, 200, 300, 41: Imaging lens

[0058] 111,112,113,114,115,116,211,212,213,214,215,216,311,312,313,314,315,316,317: Lens

[0059] 111a, 211a, 311a: First optical effective part

[0060] 111b, 211b, 311b, 313d: First peripheral part

[0061] 111c, 312c, 314c: Support surface

[0062] 112a, 312a: Second optical effective part

[0063] 112b, 312b, 314b: Second peripheral section

[0064] 117, 217, 318: Filter elements

[0065] 121, 221, 321: Image sensing element

[0066] 122,222,322: Imaging plane

[0067] 130, 230, 330: Lens tube

[0068] 131,231:Tubular part

[0069] 132,232: plate-shaped part

[0070] 133,233: Light transmission aperture

[0071] 134,234: Storage space

[0072] 135: Coil

[0073] 136: Elastic element

[0074] 137: Magnetic components

[0075] 140, 150, 240, 340, 350, 360, 370: Spatial Adjustment Structure

[0076] 141,151,241,341,351,361,371: Conical surface

[0077] 142,152,242,342,352,362,372: Spatial cone surface

[0078] 143,153,243,343,353,363,373: Corresponding structures

[0079] 144,154,244,344,364,374: Spatial interlayer

[0080] 40: Vehicles and Tools

[0081] 50: Electronic devices

[0082] 511: Telephoto Lens

[0083] 512: Ultra-wide-angle lens

[0084] 513: Extra-long telephoto lens

[0085] 514: Wide-angle main lens

[0086] 52: Lens cover plate

[0087] 53: Electronic photosensitive element

[0088] 54: User Interface

[0089] 55: Imaging signal processing element

[0090] 56: Optical anti-shake component

[0091] 57: Sensing element

[0092] 58: Flash module

[0093] 59: Focusing Assist Module

[0094] A: Adhesive

[0095] X: Optical axis

[0096] I1, I2, I3, I4: External space information

[0097] I5: Internal Space Information

[0098] Gα,Gα',Gβ,Gβ',G,G',Gγ,Gγ',Gδ,Gδ': shortest separation distance

[0099] θα,θβ,θ,θγ,θδ: included angle

[0100] α: Perspective Detailed Implementation

[0101] This disclosure provides an imaging lens comprising a first lens, a second lens, a lens barrel, and at least one spatial adjustment structure, wherein an optical axis passes through the imaging lens. The first lens includes a first optically effective portion and a first peripheral portion, wherein the optical axis passes through the first optically effective portion, and the first peripheral portion is disposed around the first optically effective portion. The second lens is disposed on the image side of the first lens and includes a second optically effective portion and a second peripheral portion, wherein the optical axis passes through the second optically effective portion, the second peripheral portion is disposed around the second optically effective portion, and an object-side surface of the second peripheral portion is in solid contact with an image-side surface of the first peripheral portion. The lens barrel includes a cylindrical portion and a plate-shaped portion, wherein the cylindrical portion surrounds the optical axis as its axis, the plate-shaped portion is connected to the cylindrical portion and extends in a direction close to the optical axis to form a light-passing aperture, the cylindrical portion and the plate-shaped portion forming an accommodating space, the first lens being disposed in the accommodating space, and an image-side surface of the plate-shaped portion being in solid contact with an object-side surface of the first peripheral portion.

[0102] Furthermore, the first environment and the second environment satisfy at least one of a temperature dependence and a humidity dependence: the temperature of the first environment is Ta, and the temperature of the second environment is Tb, with the temperature dependence satisfying the following condition: 6K ≤ |Ta-Tb| ≤ 148K; and the relative humidity of the first environment is RHa, and the relative humidity of the second environment is RHb, with the humidity dependence satisfying the following condition: 7% ≤ |RHa-RHb| ≤ 89%.

[0103] The first peripheral portion of the first lens and the plate-like portion of the lens barrel can form a spatial adjustment structure, and the spatial adjustment structure includes a conical surface, a spatial conical surface, a corresponding structure, and a spatial interlayer. The conical surface is disposed on the object-side surface of the first peripheral portion and surrounds the optical axis, with one object-side end of the conical surface closer to the optical axis than one image-side end. The spatial conical surface is disposed on the object-side surface of the first peripheral portion and surrounds the optical axis, with one object-side end of the spatial conical surface farther from the optical axis than one image-side end. The corresponding structure is disposed on the image-side surface of the plate-like portion and corresponds to both the conical surface and the spatial conical surface. The spatial interlayer is formed between the spatial conical surface and the corresponding structure, thus spacing the spatial conical surface and the corresponding structure apart. When the imaging lens is in the first environment, the conical surface and the corresponding structure can be in solid contact, and the shortest interval between the spatial conical surface and the corresponding structure is G; when the imaging lens is in the second environment, the conical surface and the corresponding structure can be set at intervals, and the shortest interval between the spatial conical surface and the corresponding structure is G'; on a cross section along the optical axis, the angle between the conical surface and the spatial conical surface is θ, which can satisfy the following conditions: 0 μm ≤ G' < G ≤ 37 μm; and 18 degrees ≤ θ ≤ 130 degrees.

[0104] Because optical elements have different rates of expansion when the environment changes, the spatial interlayer can be resized to provide clearance between them. Furthermore, the aforementioned spatial adjustment structure design reduces interference between optical elements after changes in environmental conditions, thereby preventing stress-induced deformation. In other words, it reduces stress-induced deformation, thus maintaining stable optical quality. These environmental changes can be temperature or humidity variations. When the expansion rate of the first lens to environmental changes is less than that of the lens barrel, the aforementioned configuration prevents interference caused by expansion.

[0105] Furthermore, by having the conical surface in contact with the corresponding structure, the assembly and positioning between the lens barrel and the first lens can be improved in the first environment; by having the conical surface and the corresponding structure spaced apart, a spatial interlayer can be formed between the conical surface and the corresponding structure in the second environment to avoid interference.

[0106] Furthermore, the number of spatial adjustment structures can be two, wherein the first peripheral portion of the first lens and the plate-shaped portion of the lens barrel form one of the spatial adjustment structures, and the first peripheral portion of the first lens and the second peripheral portion of the second lens form the other spatial adjustment structure.

[0107] The other component of the spatial adjustment structure includes a conical surface, a spatial conical surface, a corresponding structure, and a spatial interlayer. The conical surface is disposed on the object-side surface of the second periphery and surrounds the optical axis, with one object-side end of the conical surface farther from the optical axis than one image-side end. The spatial conical surface is disposed on the object-side surface of the second periphery and surrounds the optical axis, with one object-side end of the spatial conical surface closer to the optical axis than one image-side end. The corresponding structure is disposed on the image-side surface of the first periphery and corresponds to both the conical surface and the spatial conical surface. The spatial interlayer is formed between the spatial conical surface and the corresponding structure, thus spacing the spatial conical surface and the corresponding structure apart.

[0108] When the imaging lens is in a first environment, the conical surface of one of the spatial adjustment structures can be in solid contact with its corresponding structure, and the conical surface of the other spatial adjustment structure can also be in solid contact with its corresponding structure. The shortest interval between the spatial conical surface of one spatial adjustment structure and its corresponding structure is Gα, and the shortest interval between the spatial conical surface of the other spatial adjustment structure and its corresponding structure is Gβ. When the imaging lens is in a second environment, the conical surface of one of the spatial adjustment structures and its corresponding structure can be spaced apart, and the conical surface of the other spatial adjustment structure and its corresponding structure can also be spaced apart. The shortest interval between the spatial conical surface of one spatial adjustment structure and its corresponding structure is Gα', and the shortest interval between the spatial conical surface of the other spatial adjustment structure and its corresponding structure is Gβ'. On a cross-section along the optical axis, the angle between the conical surface of one spatial adjustment structure and its spatial conical surface is θα, and the angle between the conical surface of the other spatial adjustment structure and its spatial conical surface is θβ, which can satisfy the following conditions: 0 μm ≤ Gα' < Gα ≤ 37 μm; 0 μm ≤ Gβ' < Gβ ≤38 μm; 18 degrees ≤ θα ≤ 130 degrees; and 18 degrees ≤ θβ ≤ 130 degrees.

[0109] When the expansion rate of the first lens to environmental changes is less than that of the lens barrel and the second lens, the above configuration is more effective in avoiding interference, thus preventing interference caused by expansion and maintaining assembly stability.

[0110] When θα satisfies the above conditions, it can disperse the force direction when the first lens comes into contact with the corresponding structural entity of one of the spatial adjustment structures, thus preventing the first lens from deforming due to the force.

[0111] When θβ satisfies the above conditions, it can disperse the force direction when the second lens comes into contact with the corresponding structural entity of the other in the spatial adjustment structure, thus preventing the second lens from deforming due to the force.

[0112] Furthermore, by having one conical surface of the spatial adjustment structure contact the corresponding structure in solid contact, the assembly positioning between the lens barrel and the first lens can be improved in the first environment; by having the conical surface of one of the spatial adjustment structures and the corresponding structure spaced apart, a spatial sandwich can be formed between the conical surface of one of the spatial adjustment structures and the corresponding structure in the second environment to avoid interference; by having the conical surface of the other spatial adjustment structure contact the corresponding structure in solid contact, the assembly positioning between the first lens and the second lens can be improved in the first environment; by having the conical surface of the other spatial adjustment structure and the corresponding structure spaced apart, a spatial sandwich can be formed between the conical surface of the other spatial adjustment structure and the corresponding structure in the second environment to avoid interference.

[0113] The imaging lens may further include a third lens, wherein the third lens is disposed on the image side of the second lens. The third lens includes a third optical effective portion and a third peripheral portion, wherein the optical axis passes through the third optical effective portion, the third peripheral portion is disposed around the third optical effective portion, and an object side of the third peripheral portion is in solid contact with an image side of the second peripheral portion.

[0114] Alternatively, there may be two spatial adjustment structures, in which the first peripheral portion of the first lens and the second peripheral portion of the second lens form one of the spatial adjustment structures, and the second peripheral portion of the second lens and the third peripheral portion of the third lens form the other spatial adjustment structure.

[0115] One component of the spatial adjustment structure includes a conical surface, a spatial conical surface, a corresponding structure, and a spatial interlayer. The conical surface is disposed on the object-side surface of the second periphery and surrounds the optical axis, with one object-side end of the conical surface farther from the optical axis than one image-side end. The spatial conical surface is disposed on the object-side surface of the second periphery and surrounds the optical axis, with one object-side end of the spatial conical surface closer to the optical axis than one image-side end. The corresponding structure is disposed on the image-side surface of the first periphery and corresponds to both the conical surface and the spatial conical surface. The spatial interlayer is formed between the spatial conical surface and the corresponding structure, thus spacing the spatial conical surface and the corresponding structure apart.

[0116] The other component of the spatial adjustment structure includes a conical surface and a corresponding structure. The conical surface is disposed on the object-side surface of the third peripheral portion and surrounds the optical axis, with one object-side end of the conical surface closer to the optical axis than one image-side end of the conical surface. The corresponding structure is disposed on the image-side surface of the second peripheral portion and corresponds to the conical surface.

[0117] When the imaging lens is in a first environment, the tapered surface of one of the space adjustment structures can be in physical contact with the corresponding structure, and the shortest separation distance between the space tapered surface of said one of the space adjustment structures and the corresponding structure is Gγ; when the imaging lens is in a second environment, the tapered surface of said one of the space adjustment structures can be spaced apart from the corresponding structure, and the shortest separation distance between the space tapered surface of said one of the space adjustment structures and the corresponding structure is Gγ'; in a cross-section along the optical axis, the included angle between the tapered surface of said one of the space adjustment structures and the space tapered surface is θγ, which can satisfy the following conditions: 3 μm ≤ Gγ' <Gγ ≤ 38 μm; and 18° ≤ θγ ≤ 130°.

[0118] When the expansion rate of the second lens with respect to environmental changes is greater than that of the first lens and the third lens, the above configuration can avoid interference caused by expansion.

[0119] Another of the space adjustment structures may further comprise a space tapered surface and a space interlayer. The space tapered surface is disposed on the object side surface of the third peripheral portion and arranged around the optical axis, an object side end of the space tapered surface is farther from the optical axis than an image side end of the space tapered surface, and the corresponding structure is further disposed corresponding to the space tapered surface. The space interlayer is formed between the space tapered surface and the corresponding structure, so that the space tapered surface and the corresponding structure are spaced apart from each other.

[0120] When the imaging lens is in a first environment, the tapered surface of another of the space adjustment structures can be in physical contact with the corresponding structure, and the shortest separation distance between the space tapered surface of said another of the space adjustment structures and the corresponding structure is Gδ; when the imaging lens is in a second environment, the tapered surface of said another of the space adjustment structures can be spaced apart from the corresponding structure, and the shortest separation distance between the space tapered surface of said another of the space adjustment structures and the corresponding structure is Gδ'; in a cross-section along the optical axis, the included angle between the tapered surface of said another of the space adjustment structures and the space tapered surface is θδ, which can satisfy the following conditions: 3 μm ≤ Gδ' < Gδ ≤ 39 μm; and 18° ≤ θδ ≤ 130°.

[0121] The Abbe number of the second lens is Vd, which can satisfy the following condition: 8 ≤ Vd ≤ 29. When Vd satisfies the above condition, the volume of the second lens is more likely to change due to environmental changes. In addition, it can satisfy the following condition: 8 ≤ Vd ≤22. In addition, it can satisfy the following condition: 8 ≤ Vd ≤ 20.5.

[0122] The first peripheral portion may comprise a bearing surface, wherein the bearing surface is perpendicular to the optical axis, and the bearing surface is in physical contact with the plate-shaped portion. Thereby, the axial assembly stability of the first lens can be improved. Furthermore, the bearing surface can maintain physical contact in both the first environment and the second environment.

[0123] The second peripheral portion may include a bearing surface, wherein the bearing surface is perpendicular to the optical axis and makes solid contact with the first peripheral portion. This improves the axial assembly stability of the second lens.

[0124] The diameter of the first lens can be smaller than the diameter of the second lens, and the diameter of the second lens can be smaller than the diameter of the third lens. This facilitates the optical design of the imaging lens.

[0125] The various technical features of the imaging lens disclosed above can be combined and configured to achieve the corresponding effects.

[0126] This disclosure provides an electronic device that includes the aforementioned imaging lens.

[0127] Based on the above implementation methods, specific implementation methods and examples are presented below in conjunction with the accompanying drawings for detailed description.

[0128] <First Implementation>

[0129] Please refer to Figure 1A and Figure 1B ,in Figure 1A A partial cross-sectional view of the imaging lens 100 according to the first embodiment of this disclosure is shown. Figure 1B Drawing according to Figure 1A A schematic diagram of the imaging lens 100 in the first embodiment. (From...) Figure 1A and Figure 1B As can be seen, the imaging lens 100 includes multiple lenses 111, 112, 113, 114, 115, 116, a filter element 117, an image sensing element 121, and a lens barrel 130 (marked as...). Figure 1G The system includes two spatial adjustment structures 140 and 150, wherein an optical axis X passes through an imaging lens 100, and an image sensing element 121 is disposed on an imaging surface 122.

[0130] In the first embodiment, lens 111 can serve as a first lens, and lens 112 can serve as a second lens. The first lens includes a first optically effective part 111a (labeled as...). Figure 1G A first peripheral portion 111b is disposed around the first optical effective portion 111a, wherein the optical axis X passes through the first optical effective portion 111a. A second lens is disposed on the image side of the first lens and includes a second optical effective portion 112a (marked in...). Figure 1H The optical axis X passes through the second optical effective portion 112a, and the second peripheral portion 112b is disposed around the second optical effective portion 112a, and a side surface of the second peripheral portion 112b is in solid contact with a side surface of the first peripheral portion 111b.

[0131] The lens barrel 130 includes a cylindrical portion 131 and a plate-shaped portion 132. The cylindrical portion 131 surrounds the optical axis X with the optical axis X as its axis. The plate-shaped portion 132 is connected to the cylindrical portion 131 and extends in a direction close to the optical axis X to form a light-transmitting aperture 133. The cylindrical portion 131 and the plate-shaped portion 132 form an accommodating space 134 (marked in...). Figure 1G Furthermore, lenses 111, 112, 113, 114, 115, and 116 are disposed in the accommodating space 134, and one image side of the plate-shaped portion 132 is in solid contact with one object side of the first peripheral portion 111b, wherein lens 116 is fixed to the cylindrical portion 131 with an adhesive A.

[0132] Please refer to Figures 1C to 1H ,in Figure 1C Drawing according to Figure 1B A schematic diagram of the space adjustment structure 140 in the first embodiment in the first environment. Figure 1D Drawing according to Figure 1B A schematic diagram of the space adjustment structure 140 in the second environment according to the first embodiment. Figure 1E Drawing according to Figure 1B A schematic diagram of the space adjustment structure 150 in the first embodiment in the first environment. Figure 1F Drawing according to Figure 1B A schematic diagram of the space adjustment structure 150 in the second environment according to the first embodiment. Figure 1G Drawing according to Figure 1A An exploded view of the lens barrel 130 and lens 111 in the first embodiment. Figure 1H Drawing according to Figure 1A An exploded view of lenses 111 and 112 in the first embodiment. Figures 1C to 1H It can be seen that the first peripheral portion 111b of the first lens (i.e., lens 111) and the plate-shaped portion 132 of the lens barrel 130 form a spatial adjustment structure 140, and the first peripheral portion 111b of the first lens and the second peripheral portion 112b of the second lens (i.e., lens 112) form a spatial adjustment structure 150.

[0133] Depend on Figure 1C , Figure 1D and Figure 1GAs can be seen, the spatial adjustment structure 140 includes a conical surface 141, a spatial conical surface 142, a corresponding structure 143, and a spatial interlayer 144. The conical surface 141 is disposed on the object-side surface of the first peripheral portion 111b and surrounds the optical axis X, with one object-side end of the conical surface 141 closer to the optical axis X than one image-side end. The spatial conical surface 142 is disposed on the object-side surface of the first peripheral portion 111b and surrounds the optical axis X, with one object-side end of the spatial conical surface 142 farther from the optical axis X than one image-side end. The corresponding structure 143 is disposed on the image-side surface of the plate-shaped portion 132 and corresponds to both the conical surface 141 and the spatial conical surface 142. The spatial interlayer 144 is formed between the spatial conical surface 142 and the corresponding structure 143, thus spacing the spatial conical surface 142 and the corresponding structure 143 apart.

[0134] Depend on Figure 1E , Figure 1F and Figure 1H As can be seen, the spatial adjustment structure 150 includes a conical surface 151, a spatial conical surface 152, a corresponding structure 153, and a spatial interlayer 154. The conical surface 151 is disposed on the object-side surface of the second peripheral portion 112b and surrounds the optical axis X, with one object-side end of the conical surface 151 farther from the optical axis X than one image-side end. The spatial conical surface 152 is disposed on the object-side surface of the second peripheral portion 112b and surrounds the optical axis X, with one object-side end of the spatial conical surface 152 closer to the optical axis X than one image-side end. The corresponding structure 153 is disposed on the image-side surface of the first peripheral portion 111b and corresponds to both the conical surface 151 and the spatial conical surface 152. The spatial interlayer 154 is formed between the spatial conical surface 152 and the corresponding structure 153, thus spacing the spatial conical surface 152 and the corresponding structure 153 apart.

[0135] Specifically, due to the different expansion rates between optical elements when the environment changes, the spatial interlayers 144 and 154, by changing their size, can provide clearance between the optical elements. These environmental changes can be temperature or humidity variations. Furthermore, the configuration design of the spatial adjustment structures 140 and 150 reduces interference between optical elements after changes in environmental conditions, thereby preventing stress caused by interference and thus maintaining stable optical quality. Further, when the expansion rate of the first lens (i.e., lens 111) to environmental changes is less than that of the lens barrel 130 and the second lens (i.e., lens 112), the above configuration is more effective at preventing interference, avoiding interference caused by expansion and maintaining assembly stability.

[0136] Depend on Figure 1D It is understood that the first peripheral portion 111b includes a bearing surface 111c, wherein the bearing surface 111c is perpendicular to the optical axis X, and the bearing surface 111c is in solid contact with the plate-shaped portion 132. This improves the axial assembly stability of the first lens.

[0137] Please refer to Figure 1I Its drawing is based on Figure 1A A partially exploded view of the mirror tube 130 in the first embodiment. (From...) Figure 1A and Figure 1I It is known that the lens barrel 130 also includes a coil 135, an elastic element 136 and a plurality of magnetic elements 137, wherein the coil 135 and the magnetic elements 137 are respectively arranged, and the elastic element 136 is disposed between the cylindrical portion 131 and the filter element 117.

[0138] Depend on Figure 1C and Figure 1D It is known that the temperature Ta of the first environment is 293.1K, and the relative humidity RHa of the first environment is 30%. The temperature Tb of the second environment is 303.1K, and the relative humidity RHb of the second environment is 50%. When the imaging lens 100 is in the first environment, the conical surface 141 is in solid contact with the corresponding structure 143. When the imaging lens 100 is in the second environment, the conical surface 141 and the corresponding structure 143 are spaced apart. Specifically, in the first environment, the assembly positioning between the lens barrel 130 and the first lens (i.e., lens 111) can be improved. In the second environment, a spatial interlayer 144 can also be formed between the conical surface 141 and the corresponding structure 143 to avoid interference. Furthermore, the bearing surface 111c can maintain solid contact in both the first and second environments. In other words, when the corresponding structure 143 and the conical surface 141, as well as the corresponding structure 143 and the spatial conical surface 142, are spaced apart, the first lens maintains its positioning by pressing against the bearing surface 111c.

[0139] Depend on Figure 1E and Figure 1F It is known that the temperature Ta of the first environment is 293.1K, and the relative humidity RHa of the first environment is 30%. The temperature Tb of the second environment is 293.1K, and the relative humidity RHb of the second environment is 85%. When the imaging lens 100 is in the first environment, the conical surface 151 is in solid contact with the corresponding structure 153. When the imaging lens 100 is in the second environment, the conical surface 151 and the corresponding structure 153 are spaced apart. Specifically, in the first environment, the assembly positioning between the first lens (i.e., lens 111) and the second lens (i.e., lens 112) can be improved. In the second environment, a spatial interlayer 154 can also be formed between the conical surface 151 and the corresponding structure 153 to avoid interference.

[0140] It must be stated that, Figures 1C to 1F The chain line segment in the diagram is used to represent the part where entities are in contact.

[0141] Depend on Figures 1C to 1FIt can be seen that when the imaging lens 100 is in the first environment, the shortest interval distance between the spatial cone surface 142 of one of the spatial adjustment structures (i.e., spatial adjustment structure 140) and the corresponding structure 143 is Gα, and the shortest interval distance between the spatial cone surface 152 of the other spatial adjustment structure (i.e., spatial adjustment structure 150) and the corresponding structure 153 is Gβ; when the imaging lens 100 is in the second environment, the shortest interval distance between the spatial cone surface 142 of one of the spatial adjustment structures and the corresponding structure 143 is Gα', and the shortest interval distance between the spatial cone surface 152 of the other spatial adjustment structure and the corresponding structure 153 is Gβ'; on a cross section along the optical axis X, the angle between the cone surface 141 and the spatial cone surface 142 of one of the spatial adjustment structures is θα, the angle between the cone surface 151 and the spatial cone surface 152 of the other spatial adjustment structure is θβ, and the Abbe number of the second lens (i.e., lens 112) is Vd. The parameters satisfy the conditions in Table 1A below.

[0142]

[0143] <Second Implementation>

[0144] Please refer to Figure 2A and Figure 2B ,in Figure 2A A partial cross-sectional view of the imaging lens 200 according to the second embodiment of this disclosure is shown. Figure 2B Drawing according to Figure 2A A schematic diagram of the imaging lens 200 in the second embodiment. (From...) Figure 2A and Figure 2B As can be seen, the imaging lens 200 includes multiple lenses 211, 212, 213, 214, 215, 216, a filter element 217, an image sensing element 221, and a lens barrel 230 (labeled as...). Figure 2E The image sensor 221 is disposed on an imaging surface 222 and a spatial adjustment structure 240, wherein an optical axis X passes through an imaging lens 200 and an image sensing element 221 is disposed on an imaging surface 222.

[0145] In the second embodiment, lens 211 can serve as a first lens. The first lens includes a first optically effective part 211a (denoted as...). Figure 2E The optical axis X passes through the first optical effective portion 211a, and the first peripheral portion 211b is disposed around the first optical effective portion 211a.

[0146] The lens barrel 230 includes a cylindrical portion 231 and a plate-shaped portion 232. The cylindrical portion 231 surrounds the optical axis X with the optical axis X as its axis. The plate-shaped portion 232 is connected to the cylindrical portion 231 and extends in a direction close to the optical axis X to form a light-transmitting aperture 233. The cylindrical portion 231 and the plate-shaped portion 232 form an accommodating space 234 (marked in...). Figure 2EFurthermore, lenses 211, 212, 213, 214, 215, and 216 are disposed in the accommodating space 234, and one image side of the plate-shaped portion 232 is in solid contact with one object side of the first peripheral portion 211b.

[0147] Please refer to Figures 2C to 2E ,in Figure 2C Drawing according to Figure 2B A schematic diagram of the space adjustment structure 240 in the first environment according to the second embodiment. Figure 2D Drawing according to Figure 2B A schematic diagram of the space adjustment structure 240 in the second embodiment in the second environment. Figure 2E Drawing according to Figure 2A An exploded view of the lens barrel 230 and lens 211 in the second embodiment. Figures 2C to 2E It can be seen that the first peripheral portion 211b of the first lens (i.e., lens 211) and the plate-shaped portion 232 of the lens barrel 230 form a spatial adjustment structure 240.

[0148] Furthermore, the spatial adjustment structure 240 includes a conical surface 241, a spatial conical surface 242, a corresponding structure 243, and a spatial interlayer 244. The conical surface 241 is disposed on the object-side surface of the first peripheral portion 211b and surrounds the optical axis X, with one object-side end of the conical surface 241 closer to the optical axis X than one image-side end. The spatial conical surface 242 is disposed on the object-side surface of the first peripheral portion 211b and surrounds the optical axis X, with one object-side end of the spatial conical surface 242 farther from the optical axis X than one image-side end. The corresponding structure 243 is disposed on the image-side surface of the plate-like portion 232 and corresponds to both the conical surface 241 and the spatial conical surface 242. The spatial interlayer 244 is formed between the spatial conical surface 242 and the corresponding structure 243, thus spacing the spatial conical surface 242 and the corresponding structure 243 apart.

[0149] Specifically, the spatial adjustment structure 240 is designed to reduce interference between optical elements after changes in environmental conditions, thereby preventing stress caused by interference from deforming the optical elements and maintaining stable optical quality. These environmental changes can be temperature or humidity variations. Furthermore, when the expansion rate of the first lens (i.e., lens 211) to environmental changes is less than that of the lens barrel 230, the above configuration can prevent interference caused by expansion.

[0150] Depend on Figure 2C and Figure 2DIt is known that the temperature Ta of the first environment is 293.1K, and the relative humidity RHa of the first environment is 30%. The temperature Tb of the second environment is 358.1K, and the relative humidity RHb of the second environment is 85%. When the imaging lens 200 is in the first environment, the conical surface 241 is in solid contact with the corresponding structure 243. When the imaging lens 200 is in the second environment, the conical surface 241 and the corresponding structure 243 are spaced apart. Specifically, in the first environment, the assembly and positioning between the lens barrel 230 and the first lens (i.e., lens 211) can be improved. In the second environment, a spatial interlayer 244 can also be formed between the conical surface 241 and the corresponding structure 243 to avoid interference.

[0151] It must be stated that, Figure 2C and Figure 2D The chain line segment in the diagram is used to represent the part where entities are in contact.

[0152] Depend on Figure 2C and Figure 2D It can be seen that when the imaging lens 200 is in the first environment, the shortest interval distance between the spatial cone surface 242 and the corresponding structure 243 is G; when the imaging lens 200 is in the second environment, the shortest interval distance between the spatial cone surface 242 and the corresponding structure 243 is G'; on a cross section along the optical axis X, the angle between the cone surface 241 and the spatial cone surface 242 is θ, and the parameters satisfy the conditions in Table 2A below.

[0153]

[0154] Furthermore, the structure and arrangement of the remaining components in the second embodiment are the same as those in the first embodiment, and will not be described again here.

[0155] <Third Implementation Method>

[0156] Please refer to Figure 3A and Figure 3B ,in Figure 3A A partial cross-sectional view of the imaging lens 300 according to the third embodiment of this disclosure is shown. Figure 3B Drawing according to Figure 3A A schematic diagram of the imaging lens 300 in the third embodiment. (From...) Figure 3A and Figure 3B As can be seen, the imaging lens 300 includes multiple lenses 311, 312, 313, 314, 315, 316, 317, a filter element 318, an image sensing element 321, a lens barrel 330, and multiple spatial adjustment structures 340, 350, 360, 370, wherein an optical axis X passes through the imaging lens 300, and the image sensing element 321 is disposed on an imaging surface 322.

[0157] Please refer to Figures 3C to 3H ,in Figure 3C Drawing according to Figure 3B A schematic diagram of the space adjustment structure 340 in the first environment in the third embodiment. Figure 3D Drawing according to Figure 3B A schematic diagram of the space adjustment structure 340 in the second environment in the first embodiment of the third implementation. Figure 3E Drawing according to Figure 3B A schematic diagram of the space adjustment structure 350 in the first embodiment of the third implementation when it is in the first environment. Figure 3F Drawing according to Figure 3B A schematic diagram of the space adjustment structure 350 in the second environment in the first embodiment of the third implementation. Figure 3G Drawing according to Figure 3A An exploded view of lenses 311 and 312 in the first embodiment of the third implementation. Figure 3H Drawing according to Figure 3A An exploded view of lenses 312 and 313 in the first embodiment of the third implementation. Figures 3B to 3H As can be seen, in the first embodiment of the third implementation, lens 311 can be used as a first lens, lens 312 can be used as a second lens, and lens 313 can be used as a third lens, wherein the diameter of the first lens is smaller than the diameter of the second lens, and the diameter of the second lens is smaller than the diameter of the third lens.

[0158] The first lens includes a first optical effective portion 311a and a first peripheral portion 311b, wherein the optical axis X passes through the first optical effective portion 311a, and the first peripheral portion 311b is disposed around the first optical effective portion 311a. The second lens is disposed on the image side of the first lens and includes a second optical effective portion 312a and a second peripheral portion 312b, wherein the optical axis X passes through the second optical effective portion 312a, the second peripheral portion 312b is disposed around the second optical effective portion 312a, and an object-side surface of the second peripheral portion 312b is in solid contact with an image-side surface of the first peripheral portion 311b. The third lens is disposed on the image side of the second lens and includes a third optical effective portion 313a and a third peripheral portion 313b, wherein the optical axis X passes through the third optical effective portion 313a, the third peripheral portion 313b is disposed around the third optical effective portion 313a, and an object-side surface of the third peripheral portion 313b is in solid contact with an image-side surface of the second peripheral portion 312b.

[0159] Depend on Figure 3C , Figure 3D and Figure 3GIt is understood that the first peripheral portion 311b of the first lens and the second peripheral portion 312b of the second lens form a spatial adjustment structure 340, wherein the spatial adjustment structure 340 includes a conical surface 341, a spatial conical surface 342, a corresponding structure 343, and a spatial interlayer 344. The conical surface 341 is disposed on the object-side surface of the second peripheral portion 312b and surrounds the optical axis X, and one object-side end of the conical surface 341 is farther away from the optical axis X than one image-side end of the conical surface 341. The spatial conical surface 342 is disposed on the object-side surface of the second peripheral portion 312b and surrounds the optical axis X, and one object-side end of the spatial conical surface 342 is closer to the optical axis X than one image-side end of the spatial conical surface 342. The corresponding structure 343 is disposed on the image-side surface of the first peripheral portion 311b and is disposed corresponding to the conical surface 341 and the spatial conical surface 342. The spatial interlayer 344 is formed between the spatial conical surface 342 and the corresponding structure 343, so that the spatial conical surface 342 and the corresponding structure 343 are spaced apart.

[0160] Depend on Figure 3E , Figure 3F and Figure 3H It is understood that the second peripheral portion 312b of the second lens and the third peripheral portion 313b of the third lens form a spatial adjustment structure 350, wherein the spatial adjustment structure 350 includes a conical surface 351, a spatial conical surface 352, and a corresponding structure 353. The conical surface 351 is disposed on the object-side surface of the third peripheral portion 313b and surrounds the optical axis X, and one object-side end of the conical surface 351 is closer to the optical axis X than one image-side end of the conical surface 351. The spatial conical surface 352 is disposed on the object-side surface of the third peripheral portion 313b and surrounds the optical axis X, and one object-side end of the spatial conical surface 352 is farther from the optical axis X than one image-side end of the spatial conical surface 352. The corresponding structure 353 is disposed on the image-side surface of the second peripheral portion 312b and corresponds to the conical surface 351.

[0161] Specifically, the spatial adjustment structure 340 and 350 reduces interference between optical elements after changes in environmental conditions, thereby preventing stress caused by interference from deforming the optical elements and maintaining stable optical quality. These environmental changes can be temperature or humidity variations. When the expansion rate of the second lens face to the environmental change is greater than that of the first and third lenses, interference caused by expansion can be avoided.

[0162] Depend on Figure 3C and Figure 3D It is understood that the second peripheral portion 312b includes a bearing surface 312c, wherein the bearing surface 312c is perpendicular to the optical axis X, and the bearing surface 312c is in solid contact with the first peripheral portion 311b. This improves the axial assembly stability of the second lens.

[0163] Depend on Figure 3C and Figure 3DIt is known that the temperature Ta of the first environment is 293.1K and the relative humidity RHa of the first environment is 50%, the temperature Tb of the second environment is 358.1K and the relative humidity RHb of the second environment is 50%, wherein when the imaging lens 300 is in the first environment, the conical surface 341 is in solid contact with the corresponding structure 343; when the imaging lens 300 is in the second environment, the conical surface 341 and the corresponding structure 343 are spaced apart.

[0164] Depend on Figure 3E and Figure 3F It is known that the temperature Ta of the first environment is 263.1K and the relative humidity RHa of the first environment is 50%. The temperature Tb of the second environment is 358.1K and the relative humidity RHb of the second environment is 35%. When the imaging lens 300 is in the first environment, the conical surface 351 is in solid contact with the corresponding structure 353. When the imaging lens 300 is in the second environment, the conical surface 351 and the corresponding structure 353 are spaced apart.

[0165] It must be stated that, Figures 3C to 3F The dashed line segments in the diagram are used to represent the parts where entities are in contact.

[0166] Depend on Figures 3C to 3F It can be seen that when the imaging lens 300 is in the first environment, the shortest interval distance between the spatial cone surface 342 of one of the spatial adjustment structures (i.e., spatial adjustment structure 340) and the corresponding structure 343 is Gγ; when the imaging lens 300 is in the second environment, the shortest interval distance between the spatial cone surface 342 of one of the spatial adjustment structures and the corresponding structure 343 is Gγ'; on a cross section along the optical axis X, the angle between the cone surface 341 and the spatial cone surface 342 of one of the spatial adjustment structures is θγ, the angle between the cone surface 351 and the spatial cone surface 352 of the other spatial adjustment structure is θδ, and the Abbe number of the second lens (i.e., lens 312) is Vd. The parameters satisfy the conditions in Table 3A below.

[0167]

[0168] Please refer to Figures 3I to 3L ,in Figure 3I Drawing according to Figure 3B A schematic diagram of the space adjustment structure 360 ​​in the first environment in the second embodiment of the third implementation. Figure 3J Drawing according to Figure 3B A schematic diagram of the space adjustment structure 360 ​​in the second embodiment of the third implementation when it is in the second environment. Figure 3K Drawing according to Figure 3B A schematic diagram of the space adjustment structure 370 in the first environment in the second embodiment of the third implementation. Figure 3L Drawing according to Figure 3BA schematic diagram of the space adjustment structure 370 in the second embodiment of the third implementation in the second environment. Figures 3I to 3L As can be seen, in the second embodiment of the third implementation, lens 313 can be used as a first lens, lens 314 can be used as a second lens, and lens 315 can be used as a third lens, wherein the diameter of the first lens is smaller than the diameter of the second lens, and the diameter of the second lens is smaller than the diameter of the third lens.

[0169] The first lens includes a first optical effective portion (not shown) and a first peripheral portion 313d, wherein the optical axis X passes through the first optical effective portion, and the first peripheral portion 313d is disposed around the first optical effective portion. The second lens is disposed on the image side of the first lens and includes a second optical effective portion (not shown) and a second peripheral portion 314b, wherein the optical axis X passes through the second optical effective portion, the second peripheral portion 314b is disposed around the second optical effective portion, and an object-side surface of the second peripheral portion 314b is in solid contact with an image-side surface of the first peripheral portion 313d. The third lens is disposed on the image side of the second lens and includes a third optical effective portion (not shown) and a third peripheral portion 315b, wherein the optical axis X passes through the third optical effective portion, the third peripheral portion 315b is disposed around the third optical effective portion, and an object-side surface of the third peripheral portion 315b is in solid contact with an image-side surface of the second peripheral portion 314b.

[0170] Depend on Figure 3I and Figure 3J It is understood that the first peripheral portion 313d of the first lens and the second peripheral portion 314b of the second lens form a spatial adjustment structure 360, wherein the spatial adjustment structure 360 ​​includes a conical surface 361, a spatial conical surface 362, a corresponding structure 363, and a spatial interlayer 364. The conical surface 361 is disposed on the object-side surface of the second peripheral portion 314b and surrounds the optical axis X, and one object-side end of the conical surface 361 is farther away from the optical axis X than one image-side end of the conical surface 361. The spatial conical surface 362 is disposed on the object-side surface of the second peripheral portion 314b and surrounds the optical axis X, and one object-side end of the spatial conical surface 362 is closer to the optical axis X than one image-side end of the spatial conical surface 362. The corresponding structure 363 is disposed on the image-side surface of the first peripheral portion 313d and is disposed corresponding to the conical surface 361 and the spatial conical surface 362. The spatial interlayer 364 is formed between the spatial conical surface 362 and the corresponding structure 363, so that the spatial conical surface 362 and the corresponding structure 363 are spaced apart.

[0171] Depend on Figure 3K and Figure 3LIt is understood that the second peripheral portion 314b of the second lens and the third peripheral portion 315b of the third lens form a spatial adjustment structure 370, wherein the spatial adjustment structure 370 includes a conical surface 371, a spatial conical surface 372, a corresponding structure 373, and a spatial interlayer 374. The conical surface 371 is disposed on the object-side surface of the third peripheral portion 315b and surrounds the optical axis X, and one object-side end of the conical surface 371 is closer to the optical axis X than one image-side end of the conical surface 371. The spatial conical surface 372 is disposed on the object-side surface of the third peripheral portion 315b and surrounds the optical axis X, and one object-side end of the spatial conical surface 372 is farther from the optical axis X than one image-side end of the spatial conical surface 372. The corresponding structure 373 is disposed on the image-side surface of the second peripheral portion 314b and corresponds to the conical surface 371 and the spatial conical surface 372. The spatial interlayer 374 is formed between the spatial conical surface 372 and the corresponding structure 373, so that the spatial conical surface 372 and the corresponding structure 373 are spaced apart.

[0172] Specifically, the spatial adjustment structure at 360° and 370° reduces interference between optical elements after changes in environmental conditions, thereby preventing stress caused by interference from deforming the optical elements and maintaining stable optical quality. When the expansion rate of the second lens face to environmental changes is greater than that of the first and third lenses, interference caused by expansion can be avoided.

[0173] Depend on Figure 3I and Figure 3J It is understood that the second peripheral portion 314b includes a bearing surface 314c, wherein the bearing surface 314c is perpendicular to the optical axis X, and the bearing surface 314c is in solid contact with the first peripheral portion 313d. This improves the axial assembly stability of the second lens.

[0174] Depend on Figure 3I and Figure 3J It is known that the temperature Ta of the first environment is 293.1K and the relative humidity RHa of the first environment is 30%. The temperature Tb of the second environment is 283.1K and the relative humidity RHb of the second environment is 95%. When the imaging lens 300 is in the first environment, the conical surface 361 is in solid contact with the corresponding structure 363. When the imaging lens 300 is in the second environment, the conical surface 361 and the corresponding structure 363 are spaced apart.

[0175] Depend on Figure 3K and Figure 3L It can be seen that the temperature Ta of the first environment is 293.1K and the relative humidity RHa of the first environment is 30%, the temperature Tb of the second environment is 358.1K and the relative humidity RHb of the second environment is 50%. When the imaging lens 300 is in the first environment, the conical surface 371 and the corresponding structure 373 are set at intervals; when the imaging lens 300 is in the second environment, the conical surface 371 and the corresponding structure 373 are set at intervals.

[0176] It must be stated that, Figures 3I to 3L The dashed line segments in the diagram are used to represent the parts where entities are in contact.

[0177] Depend on Figures 3I to 3L It can be seen that when the imaging lens 300 is in the first environment, the shortest interval distance between the spatial cone surface 362 of one of the spatial adjustment structures (i.e., spatial adjustment structure 360) and the corresponding structure 363 is Gγ, and the shortest interval distance between the spatial cone surface 372 of the other spatial adjustment structure (i.e., spatial adjustment structure 370) and the corresponding structure 373 is Gδ; when the imaging lens 300 is in the second environment, the shortest interval distance between the spatial cone surface 362 of one of the spatial adjustment structures and the corresponding structure 363 is Gγ', and the shortest interval distance between the spatial cone surface 372 of the other spatial adjustment structure and the corresponding structure 373 is Gδ'; on a cross section along the optical axis X, the angle between the cone surface 361 and the spatial cone surface 362 of one of the spatial adjustment structures is θγ, and the angle between the cone surface 371 and the spatial cone surface 372 of the other spatial adjustment structure is θδ. The parameters satisfy the conditions in Table 3B below.

[0178]

[0179] Furthermore, the structure and arrangement of the remaining components in the third embodiment are the same as those in the first embodiment, and will not be described again here.

[0180] <Fourth Implementation>

[0181] Please refer to Figures 4A to 4D ,in Figure 4A A schematic diagram of the vehicle tool 40 according to the fourth embodiment of this disclosure is shown. Figure 4B Drawing according to Figure 4A Another schematic diagram of the vehicle tool 40 in the fourth embodiment. Figure 4C Drawing according to Figure 4A Another schematic diagram of the vehicle tool 40 in the fourth embodiment. Figure 4D Drawing according to Figure 4A Another schematic diagram of the vehicle tool 40 in the fourth embodiment. Figures 4A to 4D It is understood that the vehicle tool 40 includes multiple imaging lenses 41. In the fourth embodiment, the number of imaging lenses 41 is six, but it is not limited to this number. Specifically, the imaging lenses can be any of the imaging lenses in the first to third embodiments described above, but this disclosure is not limited to this.

[0182] Depend on Figure 4A and Figure 4BIt is known that the imaging lens 41 is a vehicle imaging lens, and the two lenses in the imaging lens 41 are respectively located below the left and right rearview mirrors, and are used to capture image information from a viewing angle α. Specifically, the viewing angle α can satisfy the following condition: 40 degrees < α < 90 degrees. In this way, image information within the range of the left and right side lanes can be captured.

[0183] Depend on Figure 4B It is understood that the other two imaging lenses 41 can be installed in the space inside the vehicle tool 40. Specifically, the two imaging lenses 41 are respectively installed near the rearview mirror and near the rear window. Furthermore, the imaging lenses 41 can also be installed on the non-mirror surfaces of the left and right rearview mirrors of the vehicle tool 40, but are not limited thereto.

[0184] Depend on Figure 4C It is understood that the imaging lenses 41 can be positioned at the front and rear of the vehicle tool 40. The placement of the imaging lenses 41 at the front and rear of the vehicle tool 40, and below the left and right rearview mirrors, helps the driver obtain information about the external space outside the driver's cabin, such as external space information I1, I2, I3, and I4, but is not limited to these. This provides a wider field of view to reduce blind spots, thereby contributing to improved driving safety.

[0185] Depend on Figure 4D As can be seen, the imaging lens 41 installed in the rearview mirror can be used to acquire interior space information I5 to help improve driving safety. Generally, when conventional vehicles are parked and exposed to direct sunlight, the high temperature inside the vehicle can cause temperature drift in the imaging lens, or even damage the imaging lens, thus affecting driving safety. The imaging lens 41 disclosed herein, through the configuration of a space adjustment structure, can avoid interference stress between optical elements caused by changes in environmental conditions, thus maintaining stability and image quality even under drastic temperature changes.

[0186] <Fifth Implementation>

[0187] Please refer to Figure 5A and Figure 5B ,in Figure 5A A schematic diagram of the electronic device 50 according to the fifth embodiment of this disclosure is shown. Figure 5B Drawing according to Figure 5A A block diagram of the electronic device 50 in the fifth embodiment. Figure 5A and Figure 5B It is known that the electronic device 50 is a smartphone and includes an imaging lens.

[0188] In the fifth embodiment, the electronic device 50 includes four imaging lenses: a telephoto lens 511, an ultra-wide-angle lens 512, an ultra-telephoto lens 513, and a wide-angle main lens 514. The telephoto lens 511 has a field of view of 30 to 60 degrees, the ultra-wide-angle lens 512 has a field of view of 93 to 175 degrees, the ultra-telephoto lens 513 has a field of view of 5 to 30 degrees, and the wide-angle main lens 514 has a field of view of 65 to 90 degrees, but these are not limited to these limits. Furthermore, by switching between imaging lenses with different field of view, the electronic device 50 can achieve optical zoom functionality. It must be noted that the lens cover 52 is only used to illustrate the telephoto lens 511, ultra-wide-angle lens 512, ultra-telephoto lens 513, and wide-angle main lens 514 inside the electronic device 50, and does not indicate that the lens cover 52 is detachable. Specifically, the telephoto lens 511, the ultra-wide-angle lens 512, the ultra-telephoto lens 513, and the wide-angle main lens 514 can be the imaging lenses of the first to third embodiments described above, but are not limited thereto.

[0189] The electronic device 50 also includes an electronic photosensitive element 53 and a user interface 54, wherein the electronic photosensitive element 53 is disposed on the imaging surface of the telephoto lens 511, the ultra-wide-angle lens 512, the ultra-telephoto lens 513 and the wide-angle main lens 514 (not shown in the figure), and the user interface 54 may be a touch screen or a display screen, and is not limited thereto.

[0190] Furthermore, the user enters the shooting mode through the user interface 54 of the electronic device 50. At this time, the telephoto lens 511, the ultra-wide-angle lens 512, the super telephoto lens 513, and the wide-angle main lens 514 converge the imaging light onto the electronic image sensor 53 and output the relevant electronic signal of the image to the image signal processor (ISP) 55.

[0191] Depending on the camera specifications of the electronic device 50, the electronic device 50 may further include an optical image stabilization component 56, which may be an OIS image stabilization feedback device. Furthermore, the electronic device 50 may also include at least one auxiliary optical element (not shown) and at least one sensing element 57. In the fifth embodiment, the auxiliary optical element is a flash module 58 and a focus assist module 59. The flash module 58 can be used to compensate for color temperature, and the focus assist module 59 may be an infrared rangefinder, a laser focus module, etc. The sensing element 57 can have the function of sensing physical momentum and kinetic energy, such as an accelerometer, gyroscope, or Hall effect element, to sense the shaking and tremors caused by the user's hand or the external environment. This facilitates the autofocus function and optical image stabilization component 56 of the imaging lenses (i.e., telephoto lens 511, ultra-wide-angle lens 512, super telephoto lens 513, and wide-angle main lens 514) in the electronic device 50, resulting in good image quality. This helps the electronic device 50 according to the present invention to have multiple shooting modes, such as optimized Selfie, low-light HDR (High Dynamic Range) imaging, and high-resolution 4K (4K Resolution) video recording. In addition, the user can directly view the camera's shooting screen on the touch screen and manually operate the framing range on the touch screen to achieve a WYSIWYG autofocus function.

[0192] In addition, the electronic device 50 may also include, but is not limited to, a display unit, a control unit, a storage unit, random access memory (RAM), read-only memory (ROM), or a combination thereof.

[0193] Although the present invention has been disclosed above with reference to embodiments and examples, it is not intended to limit the present invention. Anyone skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the appended claims.

Claims

1. An imaging lens, characterized in that, An optical axis passes through the imaging lens and includes: A first lens, comprising: A first optical effective part, through which the optical axis passes; and A first peripheral portion is provided around the first optical effective portion; A second lens, disposed on the image side of the first lens, and comprising: A second optical effective part, through which the optical axis passes; and A second peripheral portion is disposed around the second optical effective portion, and a side surface of the second peripheral portion is in solid contact with a side surface of the first peripheral portion. A third lens, disposed on the image side of the second lens, and comprising: A third optical effective part, through which the optical axis passes; and A third peripheral portion is disposed around the third optically effective portion, wherein an object side of the third peripheral portion is in solid contact with an image side of the second peripheral portion; and The two spatial adjustment structures are provided, wherein the first peripheral portion of the first lens and the second peripheral portion of the second lens form one of the two spatial adjustment structures, and the second peripheral portion of the second lens and the third peripheral portion of the third lens form the other of the two spatial adjustment structures. The two spatial adjustment structures include: A conical surface is disposed on the object side of the second peripheral portion and surrounds the optical axis, and the object side end of the conical surface is farther away from the optical axis than the image side end of the conical surface; A spatial cone surface is disposed on the object side of the second peripheral portion and surrounds the optical axis, with an object side end of the spatial cone surface being closer to the optical axis than an image side end of the spatial cone surface. A corresponding structure is disposed on the image side of the first peripheral portion and corresponding to the conical surface and the spatial conical surface; and A spatial interlayer is formed between the spatial cone surface and the corresponding structure, such that the spatial cone surface and the corresponding structure are spaced apart. The other component in the two-space adjustment structure includes: A conical surface is disposed on the object side of the third peripheral portion and surrounds the optical axis, and an object side end of the conical surface is closer to the optical axis than an image side end of the conical surface; A spatial cone surface is disposed on the object side of the third peripheral portion and surrounds the optical axis, wherein an object side end of the spatial cone surface is farther away from the optical axis than an image side end of the spatial cone surface. A corresponding structure is provided on the image side of the second peripheral portion and is provided corresponding to the conical surface and the spatial conical surface; and A spatial interlayer is formed between the spatial cone surface and the corresponding structure, such that the spatial cone surface and the corresponding structure are spaced apart. Wherein, when the imaging lens is in a first environment, the shortest interval distance between the spatial cone surface of one of the two spatial adjustment structures and the corresponding structure is Gγ, and the shortest interval distance between the spatial cone surface of the other of the two spatial adjustment structures and the corresponding structure is Gδ; when the imaging lens is in a second environment, the shortest interval distance between the spatial cone surface of one of the two spatial adjustment structures and the corresponding structure is Gγ', and the shortest interval distance between the spatial cone surface of the other of the two spatial adjustment structures and the corresponding structure is Gδ'; the Abbe number of the second lens is Vd, which satisfies the following condition: 3 μm ≤ Gγ' < Gγ ≤ 38 μm; 3 μm ≤ Gδ' < Gδ ≤ 39 μm; and 8 ≤ Vd ≤ 29; Wherein, the first environment and the second environment satisfy at least one of a temperature dependence relationship and a humidity dependence relationship: The temperature of the first environment is Ta, and the temperature of the second environment is Tb. This temperature dependence satisfies the following conditions: 6K ≤ |Ta-Tb| ≤ 148K; and The relative humidity of the first environment is RHa, and the relative humidity of the second environment is RHb. The humidity dependence satisfies the following condition: 7% ≤ |RHa-RHb| ≤ 89%.

2. The imaging lens as described in claim 1, characterized in that, The Abbe number of the second lens is Vd, which satisfies the following condition: 8 ≤ Vd ≤ 22.

3. The imaging lens as described in claim 2, characterized in that, The Abbe number of the second lens is Vd, which satisfies the following condition: 8 ≤ Vd ≤ 20.

5.

4. The imaging lens as described in claim 1, characterized in that, When the imaging lens is in the first environment, the conical surface of the one in the two spatial adjustment structures comes into contact with the corresponding structural entity.

5. The imaging lens as described in claim 4, characterized in that, When the imaging lens is in the second environment, the conical surface of the two-space adjustment structure is spaced apart from the corresponding structure.

6. The imaging lens as described in claim 1, characterized in that, When the imaging lens is in the first environment, the conical surface of the other of the two spatial adjustment structures comes into contact with the corresponding structural entity.

7. The imaging lens as described in claim 6, characterized in that, When the imaging lens is in the second environment, the conical surface of the other of the two spatial adjustment structures is spaced apart from the corresponding structure.

8. The imaging lens as described in claim 1, characterized in that, The second peripheral portion includes a bearing surface that is perpendicular to the optical axis and is in solid contact with the first peripheral portion.

9. The imaging lens as described in claim 1, characterized in that, Along a cross section of the optical axis, the angle between the conical surface of one of the two spatial adjustment structures and the spatial conical surface is θγ, which satisfies the following condition: 18 degrees ≤ θγ ≤ 130 degrees.

10. The imaging lens as described in claim 1, characterized in that, Along a cross section of the optical axis, the angle between the conical surface of the other of the two spatial adjustment structures and the spatial conical surface is θδ, which satisfies the following condition: 18 degrees ≤ θδ ≤ 130 degrees.

11. The imaging lens as described in claim 1, characterized in that, The diameter of the first lens is smaller than the diameter of the second lens, and the diameter of the second lens is smaller than the diameter of the third lens.

12. An imaging lens, characterized in that, An optical axis passes through the imaging lens and includes: A first lens, comprising: A first optical effective part, through which the optical axis passes; and A first peripheral portion is provided around the first optical effective portion; A second lens, disposed on the image side of the first lens, and comprising: A second optical effective part, through which the optical axis passes; and A second peripheral portion is disposed around the second optical effective portion, and a side surface of the second peripheral portion is in solid contact with a side surface of the first peripheral portion. A third lens, disposed on the image side of the second lens, and comprising: A third optical effective part, through which the optical axis passes; and A third peripheral portion is disposed around the third optically effective portion, wherein an object side of the third peripheral portion is in solid contact with an image side of the second peripheral portion; and The two spatial adjustment structures are provided, wherein the first peripheral portion of the first lens and the second peripheral portion of the second lens form one of the two spatial adjustment structures, and the second peripheral portion of the second lens and the third peripheral portion of the third lens form the other of the two spatial adjustment structures. The two spatial adjustment structures include: A conical surface is disposed on the object side of the second peripheral portion and surrounds the optical axis, and the object side end of the conical surface is farther away from the optical axis than the image side end of the conical surface; A spatial cone surface is disposed on the object side of the second peripheral portion and surrounds the optical axis, with an object side end of the spatial cone surface being closer to the optical axis than an image side end of the spatial cone surface. A corresponding structure is disposed on the image side of the first peripheral portion and corresponding to the conical surface and the spatial conical surface; and A spatial interlayer is formed between the spatial cone surface and the corresponding structure, such that the spatial cone surface and the corresponding structure are spaced apart. The other component in the two-space adjustment structure includes: A conical surface is disposed on the object side of the third peripheral portion and surrounds the optical axis, wherein one object-side end of the conical surface is closer to the optical axis than one image-side end of the conical surface; and A corresponding structure is provided on the image side of the second peripheral portion and corresponding to the conical surface; Wherein, when the imaging lens is in a first environment, the shortest interval distance between the spatial cone surface of the two spatial adjustment structures and the corresponding structure is Gγ; when the imaging lens is in a second environment, the shortest interval distance between the spatial cone surface of the two spatial adjustment structures and the corresponding structure is Gγ'; the Abbe number of the second lens is Vd, which satisfies the following condition: 3 μm ≤ Gγ' < Gγ ≤ 38 μm; and 8 ≤ Vd ≤ 29; Wherein, the first environment and the second environment satisfy at least one of a temperature dependence relationship and a humidity dependence relationship: The temperature of the first environment is Ta, and the temperature of the second environment is Tb. This temperature dependence satisfies the following conditions: 6K ≤ |Ta-Tb| ≤ 148K; and The relative humidity of the first environment is RHa, and the relative humidity of the second environment is RHb. The humidity dependence satisfies the following condition: 7% ≤ |RHa-RHb| ≤ 89%.

13. The imaging lens as described in claim 12, characterized in that, The Abbe number of the second lens is Vd, which satisfies the following condition: 8 ≤ Vd ≤ 22.

14. The imaging lens as described in claim 12, characterized in that, The Abbe number of the second lens is Vd, which satisfies the following condition: 8 ≤ Vd ≤ 20.

5.

15. The imaging lens as described in claim 12, characterized in that, When the imaging lens is in the first environment, the conical surface of the one in the two spatial adjustment structures comes into contact with the corresponding structural entity.

16. The imaging lens as described in claim 15, characterized in that, When the imaging lens is in the second environment, the conical surface of the two-space adjustment structure is spaced apart from the corresponding structure.

17. The imaging lens as described in claim 12, characterized in that, When the imaging lens is in the first environment, the conical surface of the other of the two spatial adjustment structures comes into contact with the corresponding structural entity.

18. The imaging lens as described in claim 17, characterized in that, When the imaging lens is in the second environment, the conical surface of the other of the two spatial adjustment structures is spaced apart from the corresponding structure.

19. The imaging lens as described in claim 12, characterized in that, The second peripheral portion includes a bearing surface that is perpendicular to the optical axis and is in solid contact with the first peripheral portion.

20. The imaging lens as described in claim 12, characterized in that, Along a cross section of the optical axis, the angle between the conical surface of one of the two spatial adjustment structures and the spatial conical surface is θγ, which satisfies the following condition: 18 degrees ≤ θγ ≤ 130 degrees.

21. The imaging lens as described in claim 12, characterized in that, The diameter of the first lens is smaller than the diameter of the second lens, and the diameter of the second lens is smaller than the diameter of the third lens.

22. An electronic device, characterized in that, Include: The imaging lens as described in claim 1 or 12.

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