Imaging lens, image capturing device and electronic device

Abstract

An imaging lens, an image capturing device and an electronic device are disclosed. The imaging lens comprises a first lens and a second lens from an object side to an image side, and an optical axis passes through the first lens and the second lens. The first lens comprises a first taper surface and a second taper surface. The first taper surface is disposed on a side of the first lens facing the second lens and is coaxial with the optical axis. The second taper surface is disposed on the same side as the first taper surface and is coaxial with the first taper surface. The second taper surface is closer to the optical axis than the first taper surface. The second lens comprises a first corresponding taper surface and a second corresponding taper surface. The first corresponding taper surface is disposed corresponding to the first taper surface, and the second corresponding taper surface is disposed corresponding to the second taper surface. Thus, the imaging quality can be maintained under different environmental factors.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to an imaging lens and an image capturing device, and particularly to an imaging lens and an image capturing device applied to a portable electronic device. BACKGROUND

[0002] In recent years, portable electronic devices, such as smart electronic devices and tablet computers, have been widely used in modern people's lives, and the image capturing devices and imaging lenses loaded on the portable electronic devices have also developed rapidly. However, as technology continues to advance, users have increasingly high requirements for the quality of imaging lenses.

[0003] Specifically, different refractive lenses are often used in imaging lenses to reduce chromatic dispersion and improve imaging quality. However, lenses with different refractive indices have different physical properties. In other words, when the environment changes, such as temperature or humidity, or when the device is placed in a high-temperature and high-humidity environment for a long time, the lenses are prone to expansion or contraction due to temperature changes or water absorption, causing relative displacement between the lenses and affecting the imaging quality. Therefore, developing an imaging lens that can maintain the relative positions between the lenses under varying temperature or humidity conditions has become an important and urgent problem in the industry. SUMMARY

[0004] The present disclosure provides an imaging lens, an image capturing device, and an electronic device, which maintain the relative positions between the lenses under different environmental factors by using a ring-shaped matching structure between the lenses to maintain the imaging quality.

[0005] According to an embodiment of the present disclosure, an imaging lens is provided, which comprises a first lens and a second lens from an object side to an image side, and an optical axis passes through the first lens and the second lens. The first lens comprises a first taper surface and a second taper surface, wherein the first taper surface is disposed on a side of the first lens facing the second lens and is coaxial with the optical axis; the second taper surface is disposed on the same side as the first taper surface and is coaxial with the first taper surface, and the second taper surface is closer to the optical axis than the first taper surface. The second lens comprises a first corresponding taper surface and a second corresponding taper surface, wherein the first corresponding taper surface is disposed corresponding to the first taper surface, and the second corresponding taper surface is disposed corresponding to the second taper surface. When the environmental temperature is T1, the first taper surface and the first corresponding taper surface are in physical contact, the second taper surface and the second corresponding taper surface are spaced apart, and the first lens and the second lens are aligned; when the environmental temperature is T2, the second taper surface and the second corresponding taper surface are in physical contact, the first taper surface and the first corresponding taper surface are spaced apart, and the first lens and the second lens are aligned, which satisfies the following condition: 5K≤|T1-T2|≤200K.

[0006] The imaging lens according to the previous embodiment, wherein a closest distance between the first taper and the second taper and a shortest distance between the first corresponding taper and the second corresponding taper on a cross section perpendicular to the optical axis and passing through the first taper, the first corresponding taper, the second taper and the second corresponding taper satisfy the following condition: 0.2 μm ≤ |D-d| ≤ 19.8 μm.

[0007] The imaging lens according to the previous embodiment, wherein at least one of the first lens and the second lens further comprises an outer side surface, the outer side surface is farther away from the optical axis than the first taper, the first corresponding taper, the second taper or the second corresponding taper, and a light-shield layer of the imaging lens covers at least a portion of the outer side surface.

[0008] The imaging lens according to the previous embodiment, further comprising a lens carrier receiving the first lens and the second lens, and comprising an inner side surface facing and surrounding the first lens and the second lens. One of the first lens and the second lens is spaced apart from the lens carrier.

[0009] The imaging lens according to the previous embodiment, wherein the first lens and the second lens have different linear thermal expansion coefficients, the linear thermal expansion coefficient of the first lens is E1, the linear thermal expansion coefficient of the second lens is E2, and the following condition is satisfied: 0.005 ≤ |(E1-E2) / (E1+E2)| ≤ 0.95.

[0010] The imaging lens according to the previous embodiment, wherein an included angle between the first taper and the second taper on a cross section parallel to the optical axis is θ, and the following condition is satisfied: 10 degrees ≤ θ ≤ 90 degrees.

[0011] The imaging lens according to the previous embodiment, wherein the first lens further comprises an abutting surface facing the second lens and substantially perpendicular to the optical axis. The abutting surface maintains physical contact with the second lens when the ambient temperature is between T1 and T2.

[0012] The imaging lens according to the previous embodiment, wherein one of the first lens and the second lens comprises at least one tapering surface tapering from a side of the one of the first lens and the second lens farther away from the optical axis toward a direction closer to the optical axis.

[0013] The imaging lens according to the previous embodiment, wherein one of the first lens and the second lens is a reflective lens sequentially comprising an entrance surface, at least one reflecting surface and an exit surface along an imaging light path, the imaging light path being turned in a mirror direction at the reflecting surface. At least one of the entrance surface and the exit surface comprises an axially symmetric curved surface, the imaging light path passes through the axially symmetric curved surface, and the axially symmetric curved surface is coaxially arranged with the first taper in the direction of the optical axis.

[0014] The imaging lens according to the preceding embodiment, wherein the light-incident surface, the reflecting surface and the light-emitting surface of the reflecting lens are integrally formed by plastic injection molding.

[0015] The imaging lens according to the preceding embodiment, wherein the reflecting lens further comprises a reflecting surface element and an optical surface element, the reflecting surface element forms the reflecting surface, and the optical surface element forms at least one of the light-incident surface and the light-emitting surface.

[0016] The imaging lens according to the preceding embodiment, wherein the reflecting lens further comprises a glue, the glue bonds the reflecting surface element and the optical surface element.

[0017] An imaging lens is provided according to an embodiment of the present disclosure. The imaging lens comprises a first lens and a second lens along an optical axis from an object side to an image side. The first lens comprises a first taper surface and an abutting surface. The first taper surface is disposed on a side of the first lens facing the second lens and is coaxial with the optical axis. The abutting surface is disposed on the same side as the first taper surface and is substantially perpendicular to the optical axis, and is in physical contact with the second lens. The second lens comprises a corresponding taper surface. The corresponding taper surface is disposed on a side of the second lens facing the first lens and is disposed corresponding to the first taper surface. When an ambient temperature is between T1 and T2, a distance between the first taper surface and the corresponding taper surface changes with the ambient temperature and is recoverable, and the abutting surface remains in physical contact with the second lens. When the ambient temperature is T1, the first taper surface and the corresponding taper surface are spaced apart. When the ambient temperature is T2, the first taper surface and the corresponding taper surface are in physical contact, and the first lens and the second lens are aligned, which satisfies the following condition: 5K≤|T1-T2|≤200K.

[0018] The imaging lens according to the preceding embodiment, wherein when the ambient temperature is at any temperature between T1 and T2, a shortest distance between the first taper surface and the corresponding taper surface on a cross section perpendicular to the optical axis and passing through the first taper surface and the corresponding taper surface is D', and D' can be no greater than 19.8μm. When the ambient temperature is between T1 and T2, the first taper surface and the corresponding taper surface have a maximum shortest distance D'max, and D'max can be no less than 0.2μm.

[0019] The imaging lens according to the preceding embodiment, wherein the first lens further comprises a second taper surface. The second taper surface faces the second lens, and when the ambient temperature is T1, the second taper surface is in physical contact with the second lens. An included angle between the first taper surface and the second taper surface on a cross section parallel to the optical axis is θ, which satisfies the following condition: 10 degrees≤θ≤90 degrees.

[0020] The imaging lens according to the preceding embodiment, wherein at least one of the first lens and the second lens further comprises an outer side surface. The outer side surface is farther away from the optical axis than the first taper surface, the abutting surface or the corresponding taper surface. An optical shielding layer of the imaging lens covers at least a portion of the outer side surface.

[0021] The imaging lens according to the implementation of the preceding paragraph can further include a lens carrier receiving the first lens and the second lens, and can include an inner side surface facing and surrounding the first lens and the second lens. One of the first lens and the second lens can be spaced apart from the lens carrier.

[0022] The imaging lens according to the implementation of the preceding paragraph, wherein one of the first lens and the second lens can be a reflective lens sequentially including an entrance surface, at least one reflection surface, and an exit surface along an imaging light path, the imaging light path being turned in a mirror surface direction at the reflection surface. At least one of the entrance surface and the exit surface can include an axisymmetric curved surface, the imaging light path passing through the axisymmetric curved surface, and the axisymmetric curved surface and the first conical surface being coaxially arranged in the optical axis direction.

[0023] The imaging lens according to the implementation of the preceding paragraph, wherein the reflective lens can further include a reflection surface element forming the reflection surface and an optical surface element forming at least one of the entrance surface and the exit surface. The reflective lens can further include a glue body bonding the reflection surface element and the optical surface element.

[0024] The imaging lens according to the implementation of the preceding paragraph, wherein one of the first lens and the second lens can include at least one reduction surface reducing from a side of one of the first lens and the second lens away from the optical axis to a direction close to the optical axis.

[0025] An imaging lens is provided according to an embodiment of the present disclosure. The imaging lens includes a first lens and a second lens from an object side to an image side, and an optical axis passing through the first lens and the second lens. The first lens includes a first taper surface and a second taper surface. The first taper surface is disposed on a side of the first lens facing the second lens and is coaxial with the optical axis. The second taper surface is disposed on the same side as the first taper surface and is coaxial with the first taper surface. The second taper surface is closer to the optical axis than the first taper surface. The second lens includes a first corresponding taper surface and a second corresponding taper surface. The first corresponding taper surface is disposed corresponding to the first taper surface, and the second corresponding taper surface is disposed corresponding to the second taper surface. The first taper surface and the first corresponding taper surface are in physical contact, and the second taper surface and the second corresponding taper surface are not in physical contact. In a cross section perpendicular to the optical axis and passing through the first taper surface, the first corresponding taper surface, the second taper surface, and the second corresponding taper surface, the closest distance between the first taper surface and the second taper surface is D, and the shortest distance between the first corresponding taper surface and the second corresponding taper surface is d. The following condition is satisfied: 0.2 μm ≤ |D - d| ≤ 19.8 μm. When the ambient temperature is T1, the first taper surface and the first corresponding taper surface are in physical contact, the second taper surface and the second corresponding taper surface are spaced apart, and the first lens and the second lens are aligned. When the ambient temperature is T2, the second taper surface and the second corresponding taper surface are in physical contact, the first taper surface and the first corresponding taper surface are spaced apart, and the first lens and the second lens are aligned. The following condition is satisfied: 5 K ≤ |T1 - T2| ≤ 200 K.

[0026] The imaging lens according to the embodiment of the preceding paragraph, wherein at least one of the first lens and the second lens further includes an outer side surface farther from the optical axis than the first taper surface, the first corresponding taper surface, the second taper surface, or the second corresponding taper surface. An optical shielding layer of the imaging lens covers at least a portion of the outer side surface.

[0027] The imaging lens according to the embodiment of the preceding paragraph, wherein an included angle between the first taper surface and the second taper surface in a cross section parallel to the optical axis is θ, which satisfies the following condition: 10 degrees ≤ θ ≤ 90 degrees.

[0028] The imaging lens according to the embodiment of the preceding paragraph, wherein the first lens further includes an abutting surface substantially perpendicular to the optical axis, and the abutting surface is in physical contact with the second lens.

[0029] The imaging lens according to the embodiment of the preceding paragraph, wherein one of the first lens and the second lens includes at least one tapered surface tapering from a side farther from the optical axis to a direction closer to the optical axis.

[0030] According to the imaging lens of the embodiment described above, one of the first lens and the second lens may be a reflecting lens. The reflecting lens sequentially includes an incident surface, at least one reflecting surface, and an exiting surface along an imaging optical path. The imaging optical path bends towards a mirror surface at the reflecting surface. At least one of the incident surface and the exiting surface may include an axisymmetric surface. The imaging optical path passes through the axisymmetric surface, and the axisymmetric surface and the first conical surface are coaxially arranged in the optical axis direction.

[0031] According to the imaging lens of the embodiment described above, the reflecting lens may further include a reflecting surface element and an optical surface element, wherein the reflecting surface element forms a reflecting surface, and the optical surface element forms at least one of an incident light surface and an exit light surface. The reflecting lens may further include a colloid, which bonds the reflecting surface element and the optical surface element together.

[0032] According to one embodiment of the present disclosure, an imaging device is provided, comprising at least one imaging lens of the aforementioned embodiment.

[0033] According to one embodiment of the present disclosure, an electronic device is provided, comprising at least one imaging device of the aforementioned embodiment and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on an imaging surface of an imaging lens. Attached Figure Description

[0034] Figure 1A A perspective view of the electronic device according to the first embodiment of this disclosure is shown;

[0035] Figure 1B Drawing according to Figure 1A Exploded view of the electronic device in the first embodiment;

[0036] Figure 1C Drawing according to Figure 1A A schematic diagram of the electronic device in the first embodiment;

[0037] Figure 1D Drawing according to Figure 1C A partial enlarged view of the electronic device in the first embodiment;

[0038] Figure 1E Drawing according to Figure 1D A partial enlarged view of the electronic device in the first embodiment;

[0039] Figure 1F Drawing according to Figure 1D Enlarged views of the electronic device in the first embodiment under different ambient temperatures;

[0040] Figure 1G Drawing according to Figure 1C Another enlarged view of the electronic device in the first embodiment;

[0041] Figure 1H Drawing according to Figure 1G Partial enlarged view of the electronic device in the first embodiment;

[0042] Figure 1I Schematic view of a lens according to the first embodiment; Figure 1G Partial enlarged view of the electronic device in the first embodiment at different ambient temperatures;

[0043] Figure 1J Schematic view of a lens according to the first embodiment; Figure 1C Another partial enlarged view of the electronic device in the first embodiment;

[0044] Figure 1K Schematic view of a lens according to the first embodiment; Figure 1J Partial enlarged view of the electronic device in the first embodiment;

[0045] Figure 1L Schematic view of a lens according to the first embodiment; Figure 1J Partial enlarged view of the electronic device in the first embodiment at different ambient temperatures;

[0046] Figure 2A Schematic view of an electronic device in the second embodiment according to the present disclosure;

[0047] Figure 2B Schematic view of a lens according to the second embodiment; Figure 2A Exploded view of the electronic device in the second embodiment;

[0048] Figure 2C Schematic view of a lens according to the second embodiment; Figure 2A Schematic view of the electronic device in the second embodiment;

[0049] Figure 2D Schematic view of a lens according to the second embodiment; Figure 2C Partial enlarged view of the electronic device in the second embodiment;

[0050] Figure 2E Schematic view of a lens according to the second embodiment; Figure 2D Partial enlarged view of the electronic device in the second embodiment;

[0051] Figure 2F Schematic view of a lens according to the second embodiment; Figure 2D Partial enlarged view of the electronic device in the second embodiment at different ambient temperatures;

[0052] Figure 2G Schematic view of a lens according to the second embodiment; Figure 2A Schematic view of a lens according to the second embodiment;

[0053] Figure 2H Schematic view of a lens according to the second embodiment; Figure 2A Schematic view of a lens according to the second embodiment;

[0054] Figure 3A Schematic view of an electronic device in the third embodiment according to the present disclosure;

[0055] Figure 3B a schematic diagram of an electronic device according to the third embodiment; Figure 3A exploded view of an electronic device according to the third embodiment;

[0056] Figure 3C a schematic diagram of an electronic device according to the third embodiment; Figure 3A exploded view of an electronic device according to the third embodiment;

[0057] Figure 3D a schematic diagram of an electronic device according to the third embodiment; Figure 3C exploded view of an electronic device according to the third embodiment;

[0058] Figure 3E a schematic diagram of an electronic device according to the third embodiment; Figure 3D exploded view of an electronic device according to the third embodiment;

[0059] Figure 3F a schematic diagram of an electronic device according to the third embodiment; Figure 3E exploded view of an electronic device according to the third embodiment;

[0060] Figure 3G a schematic diagram of an electronic device according to the third embodiment; Figure 3E exploded view of an electronic device according to the third embodiment;

[0061] Figure 3H a schematic diagram of an electronic device according to the third embodiment; Figure 3A exploded view of an electronic device according to the third embodiment;

[0062] Figure 3I a schematic diagram of an electronic device according to the third embodiment; Figure 3A exploded view of an electronic device according to the third embodiment;

[0063] Figure 3J a schematic diagram of an electronic device according to the third embodiment; Figure 3A exploded view of an electronic device according to the third embodiment;

[0064] Figure 3K a schematic diagram of an electronic device according to the third embodiment; Figure 3A exploded view of an electronic device according to the third embodiment;

[0065] Figure 3L a schematic diagram of an electronic device according to the third embodiment; Figure 3A exploded view of an electronic device according to the third embodiment;

[0066] Figure 4A exploded view of an electronic device according to the third embodiment;

[0067] Figure 4B a schematic diagram of an electronic device according to the third embodiment; Figure 4A exploded view of an electronic device according to the third embodiment;

[0068] Figure 4C a schematic diagram of an electronic device according to the third embodiment; Figure 4A exploded view of an electronic device according to the third embodiment;

[0069] Figure 5A Fig. 8 shows a perspective view of a lens according to a fifth embodiment of the present disclosure;

[0070] Figure 5B Fig. 9 shows a schematic view of a lens according to the fifth embodiment of the present disclosure; Figure 5A

[0071] Figure 5C Fig. 10 shows an exploded view of a lens according to the fifth embodiment of the present disclosure; Figure 5A

[0072] Figure 5D Fig. 11 shows a schematic view of an optical surface element of a lens according to the fifth embodiment of the present disclosure; Figure 5A

[0073] Figure 6A Fig. 12 shows a schematic view of an electronic device according to a sixth embodiment of the present disclosure;

[0074] Figure 6B Fig. 13 shows another schematic view of an electronic device according to the sixth embodiment of the present disclosure; Figure 6A

[0075] Fig. 14 shows a further schematic view of an electronic device according to the sixth embodiment of the present disclosure; Figure 6C Figure 6A Fig. 15 shows a schematic view of an image taken by a wide-angle image capturing device according to the sixth embodiment of the present disclosure;

[0076] Figure 6D Figure 6A Fig. 16 shows a schematic view of an image taken by a super-wide-angle image capturing device according to the sixth embodiment of the present disclosure;

[0077] Figure 6E Fig. 17 shows a schematic view of an image taken by a wide-angle image capturing device according to the sixth embodiment of the present disclosure; Figure 6A

[0078] Fig. 18 shows a schematic view of an image taken by a telephoto image capturing device according to the sixth embodiment of the present disclosure; and Figure 6F Figure 6A Fig. 19 shows a schematic view of an image taken by a super-telephoto image capturing device according to the sixth embodiment of the present disclosure.

[0079] Figure 6G Figure 6A

[0080]

List of Symbols

[0081] 10, 20, 30, 60: electronic device

[0082] 11, 21, 31: electronic photosensitive element

[0083] 12, 22, 32: imaging surface

[0084] 110, 210, 310: lens carrier

[0085] ​​​​​​​​121, 122, 123, 124, 125, 126, 127, 221, 222, 223, 224, 225, 226, 227, 321, 322, 323, 324, 325, 421, 521: lens

[0086] 121a, 122a, 123a, 221a, 321a: first taper

[0087] 121b, 122b, 123b, 221b, 321b: second taper

[0088] 121c, 122c, 123c, 221c, 321c: bearing surface

[0089] 122d, 123d, 124d, 222d, 322d: first counter taper

[0090] 122e, 123e, 124e, 222e, 322e: second counter taper

[0091] 122f, 123f, 124f, 222f, 322f: counter bearing surface

[0092] 122g, 123g, 123h, 124g, 221g, 222g, 321g, 322g: connecting surface

[0093] 131, 132, 133, 231, 232, 233, 234, 235, 332: shade

[0094] 134, 135, 333: space separating element

[0095] 136, 236, 331, 334, 431: fixing element

[0096] 23, 33: filter

[0097] 211: inner side surface

[0098] 221h, 222h, 521h: outer side surface

[0099] 221i, 222i, 322i: optical surface

[0100] 240, 540: colloid

[0101] 250: shading layer

[0102] 261, 262, 361, 362, 461, 561: ring-shaped mating structure

[0103] 321m, 322m, 521m: reduced surface

[0104] 321j, 421j, 521j: light-incident surface

[0105] 321k, 421k, 521k: reflecting surface

[0106] 321L, 421L, 521L: light-emitting surface

[0107] 470, 570: optical surface element

[0108] 480, 580: reflecting surface element

[0109] 610: image-capturing control interface

[0110] 611: image playback button

[0111] 612: image-capturing module switching button

[0112] 613: focus and photographing button

[0113] 614: integrated menu button

[0114] 615: zoom control button

[0115] 621, 622: ultra-wide-angle image-capturing device

[0116] 623: super-telephoto image-capturing device

[0117] 624, 625: wide-angle image-capturing device

[0118] 626: telephoto image-capturing device

[0119] 627: TOF module

[0120] 628: macro image-capturing device

[0121] 629: biometric-sensing image-capturing device

[0122] 63: prompt light

[0123] 64: circuit board

[0124] 641: connector

[0125] 65: single-chip system

[0126] 66: focus-assisting element

[0127] 661: light-emitting element

[0128] S: cross section

[0129] R: reflecting layer

[0130] X: optical axis

[0131] X1: first optical axis

[0132] X2: Second optical axis

[0133] T1, T2: Ambient temperature

[0134] D: Closest distance

[0135] d,D',D'max: Shortest distance

[0136] E1: Coefficient of linear thermal expansion of the first lens

[0137] E2: Coefficient of linear thermal expansion of the second lens

[0138] θ: included angle Detailed Implementation

[0139] This disclosure provides an imaging lens having an imaging optical path, and the imaging optical path including an optical axis. The imaging lens includes a first lens and a second lens along the optical axis from the object side to the image side, and the optical axis passes through the first lens and the second lens. The first lens includes a first conical surface, wherein the first conical surface is disposed on the side of the first lens facing the second lens, and is centered on the optical axis. The second lens includes a first corresponding conical surface (or may be a corresponding conical surface, which will be referred to as the first corresponding conical surface hereafter), wherein the first corresponding conical surface is disposed on the side of the second lens facing the first lens, and the first corresponding conical surface corresponds to the first conical surface.

[0140] Through the above configuration, the first and second lenses can maintain alignment when subjected to environmental changes, and can remain in sync when the environment returns to normal, thereby improving the imaging lens's resistance to changes in external factors. These environmental changes can be temperature changes, humidity changes, or prolonged high-temperature and high-humidity environments, or further, they can be designed to resist falling impacts or vibrations.

[0141] The first lens may further include a second conical surface, wherein the second conical surface is disposed on the same side as the first conical surface and faces the second lens, is coaxial with the first conical surface, and is closer to the optical axis than the first conical surface. The second lens may further include a second corresponding conical surface, which is disposed corresponding to the second conical surface. This further reduces the risk of lens misalignment.

[0142] The first lens may further include a bearing surface, wherein the bearing surface and the first conical surface are disposed on the same side, the bearing surface is substantially perpendicular to the optical axis, and faces and contacts the second lens. The bearing surface can be used to maintain the distance between the first lens and the second lens on the optical axis, so as to avoid deformation of the first lens and the second lens due to pressure on the first conical surface, the second conical surface, the first corresponding conical surface and the second corresponding conical surface.

[0143] At least one of the first lens and the second lens can further include an outer side surface, the outer side surface being farther away from the optical axis than the first taper surface, the first corresponding taper surface, the second taper surface, or the second corresponding taper surface, and a light-shielding layer of the imaging lens covering at least a portion of the outer side surface. The light-shielding layer can be a kind of glue or coating with light-shielding or light-absorbing properties, and the light-shielding layer can shield non-imaging light from entering the electronic photosensitive element. In this way, the generation of glare is reduced.

[0144] The imaging lens can further include a lens carrier, the lens carrier accommodating the first lens and the second lens, and including an inner side surface, wherein the inner side surface faces and surrounds the first lens and the second lens, and one of the first lens and the second lens is arranged spaced apart from the lens carrier. In this way, the extrusion deformation of the lens caused by the radial pressure of the lens carrier during expansion and contraction can be avoided, so as to further improve the yield of the finished product.

[0145] One of the first lens and the second lens can include at least one taper-reducing surface, wherein the taper-reducing surface is tapered from a side of one of the first lens and the second lens farther away from the optical axis to a direction closer to the optical axis. Specifically, the taper-reducing surface intersects the first taper surface of the first lens or the first corresponding taper surface of the second lens, so that the first taper surface or the first corresponding taper surface presents a C shape.

[0146] It should be noted that the first taper surface and the first corresponding taper surface can not completely surround the optical axis, and the taper-reducing surface can serve as a mark for the first lens or the second lens to be aligned perpendicular to the optical axis, so as to improve the assembly efficiency. Furthermore, the taper-reducing surface can be formed by a transfer mold, or can be a cross section of the first lens or the second lens after secondary processing, and the taper-reducing surface can further be provided with a sprue for injection molding. The taper-reducing surface can make the first lens or the second lens present a non-circular shape in the projection perpendicular to the optical axis, so as to reduce the size of the imaging lens in the direction perpendicular to the optical axis.

[0147] One of the first lens and the second lens can be a reflective lens, the reflective lens sequentially including an entrance surface, at least one reflection surface, and an exit surface along an imaging light path, the imaging light path being turned in a mirror direction at the reflection surface. At least one of the entrance surface and the exit surface can include an axisymmetric curved surface, the imaging light path passing through the axisymmetric curved surface, and the axisymmetric curved surface being coaxially arranged with the first taper surface in the optical axis direction. The axisymmetric curved surface can be a spherical surface, an aspherical surface, or a free-form surface. In this way, the reflective lens can simultaneously turn the imaging light path and change the image field, so as to reduce the number of optical components and improve the assembly efficiency.

[0148] The entrance surface, the reflection surface, and the exit surface of the reflective lens can be integrally formed by plastic injection. Further, the reflection surface can be further provided with a reflection layer, wherein the reflection layer can be a metal layer or a high-refractive plating layer, but is not limited thereto. In this way, the reflectivity of the reflection surface is improved.

[0149] The reflective lens can further include a reflective surface element forming the reflective surface and an optical surface element forming at least one of the light-in surface and the light-out surface. Further, the reflective lens can further include a glue bonding the reflective surface element and the optical surface element. In this way, the relative positions of the reflective surface element and the optical surface element can be fixed while avoiding the generation of a dust layer to reduce glare.

[0150] When the ambient temperature is T1, the first taper surface is in physical contact with the first corresponding taper surface, the second taper surface is spaced apart from the second corresponding taper surface, and the first lens is aligned with the second lens, or the first taper surface is spaced apart from the first corresponding taper surface; when the ambient temperature is T2, the second taper surface is in physical contact with the second corresponding taper surface, the first taper surface is spaced apart from the first corresponding taper surface, and the first lens is aligned with the second lens, or the first taper surface is in physical contact with the first corresponding taper surface; when the ambient temperature is between T1 and T2, the distance between the first taper surface and the first corresponding taper surface changes with the ambient temperature and can be restored, and the abutting surface is in physical contact with the second lens, which can satisfy the following condition: 5K≤|T1-T2|≤200K.

[0151] Specifically, through the second alignment of the first lens and the second lens at different temperatures, the imaging lens can reduce the risk of lens shift. Moreover, through the physical contact of the first taper surface with the first corresponding taper surface or the physical contact of the second taper surface with the second corresponding taper surface, interference and the cooperation between the first lens and the second lens can be avoided. In addition, it can satisfy the following condition: 10K≤|T1-T2|≤100K. Furthermore, it can satisfy the following condition: 15K≤|T1-T2|≤50K.

[0152] The first taper surface is in physical contact with the first corresponding taper surface, and the second taper surface is spaced apart from the second corresponding taper surface, or the second taper surface is in physical contact with the second corresponding taper surface, and the first taper surface is spaced apart from the first corresponding taper surface, and on a cross section perpendicular to the optical axis and passing through the first taper surface, the first corresponding taper surface, the second taper surface, and the second corresponding taper surface, the shortest distance between the first taper surface and the second taper surface is D, and the shortest distance between the first corresponding taper surface and the second corresponding taper surface is d, which can satisfy the following condition: 0.2μm≤|D-d|≤19.8μm. Through the control of the above distance, the design can be optimized according to the actual application conditions. In addition, it can satisfy the following condition: 1.0μm≤|D-d|≤9.8μm. Furthermore, it can satisfy the following condition: 2.0μm≤|D-d|≤3.5μm.

[0153] The first lens and the second lens can have different linear thermal expansion coefficients. The linear thermal expansion coefficient of the first lens is E1, and the linear thermal expansion coefficient of the second lens is E2. The following condition can be met: 0.005≤|(E1-E2) / (E1+E2)|≤0.95. When the linear thermal expansion coefficient of the first lens and the linear thermal expansion coefficient of the second lens meet the above data range, the positions of the first lens and the second lens can be maintained when the temperature changes. In addition, the first lens and the second lens can be plastic lenses or glass lenses, but are not limited thereto. In addition, the following condition can be met: 0.01≤|(E1-E2) / (E1+E2)|≤0.7. In addition, the following condition can be met: 0.02≤|(E1-E2) / (E1+E2)|≤0.3.

[0154] Specifically, the linear thermal expansion coefficient of the first lens and the linear thermal expansion coefficient of the second lens in the embodiment are based on the experimental value at 293.1K (i.e., 20°C), and within a controllable range, the change of thermal expansion is considered to be linear (i.e., the linear thermal expansion coefficient is considered to be a constant value). When the temperature is not mentioned in the embodiment, it is considered to be 293.1K.

[0155] The included angle of the first taper surface and the second taper surface on a cross section parallel to the optical axis is θ, which can meet the following condition: 10 degrees≤θ≤90 degrees. In this way, the direction of the force between the first lens and the second lens in contact can be controlled to avoid bending of the first lens and the second lens when thermal expansion occurs. In addition, the following condition can be met: 15 degrees≤θ≤60 degrees.

[0156] When the ambient temperature is any temperature between T1 and T2, the shortest distance between the first taper surface and the first corresponding taper surface on a cross section perpendicular to the optical axis and passing through the first taper surface and the first corresponding taper surface is D', and D' is not greater than 19.8μm; when the ambient temperature is between T1 and T2, the first taper surface and the first corresponding taper surface have a maximum shortest distance D'max, and D'max is not less than 0.2μm.

[0157] The technical features of the imaging lens in the disclosure can be combined to achieve the corresponding effects.

[0158] The disclosure provides an image capturing device, which includes at least one of the aforementioned imaging lenses.

[0159] The disclosure provides an electronic device, which includes at least one of the aforementioned image capturing devices and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on an imaging surface of the imaging lens.

[0160] According to the above-mentioned embodiments, the following specific examples are proposed in detail with reference to the accompanying drawings.

[0161] <First Embodiment>

[0162] Please refer to Figures 1A to 1C ,in Figure 1A A perspective view of the electronic device 10 according to the first embodiment of this disclosure is shown. Figure 1B Drawing according to Figure 1A An exploded view of the electronic device 10 in the first embodiment. Figure 1C Drawing according to Figure 1A A schematic diagram of the electronic device 10 in the first embodiment. (From...) Figures 1A to 1C It is understood that the electronic device 10 includes at least one image capturing device (not shown) and an electronic photosensitive element 11, wherein the image capturing device includes at least one imaging lens (not shown), and the electronic photosensitive element 11 is disposed on an imaging surface 12 of the imaging lens.

[0163] Furthermore, the imaging lens has an imaging optical path (not shown in the figure), and the imaging optical path includes an optical axis X. From the object side to the image side, the imaging lens includes a lens carrier 110, lens 121, lens 122, light-blocking plate 131, lens 123, light-blocking plate 132, lens 124, light-blocking plate 133, lens 125, spatial spacing element 134, lens 126, spatial spacing element 135, lens 127, and fixing element 136, and the lens carrier 110 houses lenses 121, 122, 123, 124, 125, 126, 127, light-blocking plates 131, 132, 133, spatial spacing elements 134, 135, and fixing element 136. Light-shielding plates 131, 132, and 133 are respectively positioned between lenses 122 and 123, between lenses 123 and 124, and between lenses 124 and 125 to block non-imaging light from entering the electronic photosensitive element 11 and causing glare. It must be noted that lenses 121, 122, 123, 124, 125, 126, and 127 can be plastic lenses or glass lenses, and their number, structure, surface shape, and other optical characteristics can be configured according to different imaging requirements and are not limited thereto.

[0164] Depend on Figure 1C As can be seen, adjacent lenses in the imaging lens (i.e., lenses 121, 122, 123, and 124) each contain annular mating structures (not shown in the figure), which are used to solve the offset problem caused by changes in environmental factors (i.e., temperature and humidity). The following will explain the annular mating structures between lenses 121 and 122, between lenses 122 and 123, and between lenses 123 and 124.

[0165] Please refer to the following: Figures 1D to 1F ,in Figure 1D Drawing according to Figure 1C A partial enlarged view of the electronic device 10 in the first embodiment; Figure 1E Drawing according to Figure 1D A partial enlarged view of the electronic device 10 in the first embodiment; Figure 1F Drawing according to Figure 1D Enlarged views of the electronic device 10 in the first embodiment under different ambient temperatures. Figures 1C to 1F It can be seen that lenses 121 and 122 are located opposite each other on the object side and image side of the imaging lens, and the optical axis X passes through lenses 121 and 122. Lens 121 can be used as the first lens and lens 122 can be used as the second lens.

[0166] The first lens includes a first conical surface 121a, a second conical surface 121b, and a bearing surface 121c. The first conical surface 121a is disposed on the side of the first lens facing the second lens and is centered on the optical axis X. The second conical surface 121b is disposed on the same side as the first conical surface 121a and faces the second lens. The second conical surface 121b is coaxial with the first conical surface 121a and is closer to the optical axis X than the first conical surface 121a. The bearing surface 121c faces the second lens and is approximately perpendicular to the optical axis X. It is disposed on the same side as the first conical surface 121a and the second conical surface 121b and is in contact with the second lens.

[0167] The second lens includes a first corresponding conical surface 122d, a second corresponding conical surface 122e, and a corresponding bearing surface 122f. The first corresponding conical surface 122d is disposed on the side of the second lens facing the first lens and is disposed corresponding to the first conical surface 121a. The second corresponding conical surface 122e is disposed corresponding to the second conical surface 121b. The corresponding bearing surface 122f corresponds to the bearing surface 121c and is disposed on the same side as the first corresponding conical surface 122d and the second corresponding conical surface 122e.

[0168] It must be noted that the first conical surface 121a, the second conical surface 121b, and the bearing surface 121c form the annular fitting structure of the first lens, and the first corresponding conical surface 122d, the second corresponding conical surface 122e, and the corresponding bearing surface 122f form the annular fitting structure of the second lens. The first lens and the second lens are in solid contact and aligned through the annular fitting structure.

[0169] Depend on Figure 1F It can be seen that when the ambient temperature is T1, the first conical surface 121a is in solid contact with the first corresponding conical surface 122d, the second conical surface 121b and the second corresponding conical surface 122e are spaced apart, and the first lens and the second lens are aligned; Figure 1D and Figure 1EIt can be seen that when the ambient temperature is T2, the second conical surface 121b and the second corresponding conical surface 122e are in solid contact, the first conical surface 121a and the first corresponding conical surface 122d are spaced apart, and the first lens and the second lens are aligned. Furthermore, when the ambient temperature is between T1 and T2, the distance between the first conical surface 121a and the first corresponding conical surface 122d changes with the ambient temperature and can be restored, and the bearing surface 121c maintains solid contact with the second lens. The bearing surface 121c can be used to maintain the distance between the first lens and the second lens on the optical axis X, so as to avoid deformation of the first lens and the second lens due to pressure on the first conical surface 121a, the second conical surface 121b, the first corresponding conical surface 122d, and the second corresponding conical surface 122e. Figures 1D to 1F In the diagram, T1 is 343.1K and T2 is 293.1K. It must be noted that the ambient temperature refers to the external ambient temperature of the imaging lens when the internal temperature of the imaging lens is in a steady state.

[0170] Specifically, by aligning the first and second lenses twice at different temperatures, the imaging lens can reduce the risk of lens shift. Furthermore, by having the first conical surface 121a and the first corresponding conical surface 122d in solid contact, or the second conical surface 121b and the second corresponding conical surface 122e in solid contact, interference and the fit between the first and second lenses can be avoided.

[0171] Depend on Figure 1E It can be seen that on a cross section S perpendicular to the optical axis X and passing through the first conical surface 121a, the first corresponding conical surface 122d, the second conical surface 121b, and the second corresponding conical surface 122e, the closest distance between the first conical surface 121a and the second conical surface 121b is D, the shortest distance between the first corresponding conical surface 122d and the second corresponding conical surface 122e is d, the linear thermal expansion coefficient of the first lens is E1, the linear thermal expansion coefficient of the second lens is E2, and the angle between the first conical surface 121a and the second conical surface 121b on a cross section parallel to the optical axis X (not shown in the figure) is θ. The parameters satisfy the conditions in Table 1 below.

[0172]

[0173] Furthermore, when the ambient temperature is between T1 and T2, on the cross section S perpendicular to the optical axis X and passing through the first conical surface 121a and the corresponding conical surface (i.e., the first corresponding conical surface 122d), the shortest distance between the first conical surface 121a and the corresponding conical surface is D', and D' is not greater than 19.8 μm; when the ambient temperature is between T1 and T2, the first conical surface 121a and the corresponding conical surface have a maximum shortest distance of D'max, and D'max is not less than 0.2 μm.

[0174] It must be noted that the first lens and the second lens have different coefficients of linear thermal expansion, and the first lens and the second lens may further have different water absorption expansion rates.

[0175] Please refer to Figures 1G to 1I wherein Figure 1G illustrating according to Figure 1C Another partial enlarged view of the electronic device 10 in the first embodiment; Figure 1H illustrating according to Figure 1G Partial enlarged view of the electronic device 10 in the first embodiment; Figure 1I illustrating according to Figure 1G Partial enlarged view of the electronic device 10 in the first embodiment at different ambient temperatures. It can be seen from Figure 1C , Figures 1G to 1I that the lenses 122, 123 are located opposite to the object side and the image side of the imaging lens, and the optical axis X passes through the lenses 122, 123, wherein the lens 122 can serve as a first lens, and the lens 123 can serve as a second lens.

[0176] The first lens comprises a first taper surface 122a, a second taper surface 122b, an abutting surface 122c, and a connecting surface 122g, wherein the first taper surface 122a is arranged on the side of the first lens facing the second lens and takes the optical axis X as the axis; the second taper surface 122b is arranged on the same side as the first taper surface 122a and faces the second lens, the second taper surface 122b is coaxial with the first taper surface 122a, the second taper surface 122b is closer to the optical axis X than the first taper surface 122a, and the second taper surface 122b gradually approaches the first taper surface 122a; the abutting surface 122c faces the second lens and is substantially perpendicular to the optical axis X, is arranged on the same side as the first taper surface 122a and the second taper surface 122b, and is in physical contact with the second lens; the connecting surface 122g extends from the side of the second taper surface 122b close to the optical axis X to the optical axis X and is connected to the optical surface (not marked in the figure) of the first lens, and the optical axis X passes through the optical surface.

[0177] The second lens comprises a first corresponding taper surface 123d, a second corresponding taper surface 123e, a corresponding abutting surface 123f, and a connecting surface 123g, wherein the first corresponding taper surface 123d is arranged on the side of the second lens facing the first lens and is arranged correspondingly to the first taper surface 122a, and the first taper surface 122a and the first corresponding taper surface 123d are substantially parallel to the optical axis X; the second corresponding taper surface 123e is arranged correspondingly to the second taper surface 122b, and the second corresponding taper surface 123e gradually approaches the first corresponding taper surface 123d; the corresponding abutting surface 123f corresponds to the abutting surface 122c and is arranged on the same side as the first corresponding taper surface 123d and the second corresponding taper surface 123e; the connecting surface 123g extends from the side of the second corresponding taper surface 123e close to the optical axis X to the optical axis X and is connected to the optical surface (not marked in the figure) of the second lens, and the optical axis X passes through the optical surface, and the light shield 131 is arranged between the connecting surface 122g and the connecting surface 123g.

[0178] It must be noted that the first conical surface 122a, the second conical surface 122b, and the bearing surface 122c form the annular fitting structure of the first lens, and the first corresponding conical surface 123d, the second corresponding conical surface 123e, and the corresponding bearing surface 123f form the annular fitting structure of the second lens. The first lens and the second lens are in solid contact and aligned through the annular fitting structure.

[0179] Depend on Figure 1I It can be seen that when the ambient temperature is T1, the first conical surface 122a is in solid contact with the first corresponding conical surface 123d, the second conical surface 122b and the second corresponding conical surface 123e are spaced apart, and the first lens and the second lens are aligned; from Figure 1G and Figure 1H It can be seen that when the ambient temperature is T2, the second conical surface 122b and the second corresponding conical surface 123e are in solid contact, the first conical surface 122a and the first corresponding conical surface 123d are spaced apart, and the first lens and the second lens are aligned. Furthermore, when the ambient temperature is between T1 and T2, the distance between the first conical surface 122a and the first corresponding conical surface 123d changes with the ambient temperature and can be restored, and the bearing surface 122c maintains solid contact with the second lens. The bearing surface 122c can be used to maintain the distance between the first lens and the second lens on the optical axis X, so as to avoid deformation of the first lens and the second lens due to pressure on the first conical surface 122a, the second conical surface 122b, the first corresponding conical surface 123d, and the second corresponding conical surface 123e. Figures 1G to 1I In the above, T1 is 343.1K and T2 is 293.1K.

[0180] Specifically, by aligning the first and second lenses twice at different temperatures, the imaging lens can reduce the risk of lens shift. Furthermore, by having the first conical surface 122a in solid contact with the first corresponding conical surface 123d or the second conical surface 122b in solid contact with the second corresponding conical surface 123e, interference and the fit between the first and second lenses can be avoided.

[0181] Depend on Figure 1H It can be seen that on a cross section S perpendicular to the optical axis X and passing through the first conical surface 122a, the first corresponding conical surface 123d, the second conical surface 122b, and the second corresponding conical surface 123e, the closest distance between the first conical surface 122a and the second conical surface 122b is D, the shortest distance between the first corresponding conical surface 123d and the second corresponding conical surface 123e is d, the linear thermal expansion coefficient of the first lens is E1, the linear thermal expansion coefficient of the second lens is E2, and the angle between the first conical surface 122a and the second conical surface 122b on a cross section parallel to the optical axis X (not shown in the figure) is θ. The parameters satisfy the conditions in Table 2 below.

[0182]

[0183] When the ambient temperature is any temperature between T1 and T2, the shortest distance between the first taper surface 122a and the corresponding taper surface on the cross section S perpendicular to the optical axis X and passing through the intersection of the first taper surface 122a and the corresponding taper surface (i.e. the first corresponding taper surface 123d) is D', and D' is not greater than 19.8 μm; when the ambient temperature is between T1 and T2, the first taper surface 122a and the corresponding taper surface have a maximum shortest distance D'max, and D'max is not less than 0.2 μm.

[0184] It must be noted that the first lens and the second lens have different linear thermal expansion coefficients, and the first lens and the second lens can further have different water absorption expansion rates.

[0185] Please refer to Figures 1J to 1L wherein Figure 1J is shown according to Figure 1C Another partial enlarged view of the electronic device 10 in the first embodiment is shown. Figure 1K is shown according to Figure 1J A partial enlarged view of the electronic device 10 in the first embodiment is shown. Figure 1L is shown according to Figure 1J Partial enlarged views of the electronic device 10 in the first embodiment at different ambient temperatures are shown. It can be seen from Figure 1C , Figures 1J to 1L that the lenses 123, 124 are located opposite to each other on the object side and the image side of the imaging lens, and the optical axis X passes through the lenses 123, 124, wherein the lens 123 can serve as the first lens, and the lens 124 can serve as the second lens.

[0186] The first lens comprises a first taper surface 123a, a second taper surface 123b, an abutting surface 123c and a connecting surface 123h, wherein the first taper surface 123a is disposed on the side of the first lens facing the second lens and is coaxial with the optical axis X; the second taper surface 123b is disposed on the same side as the first taper surface 123a and faces the second lens, the second taper surface 123b is coaxial with the first taper surface 123a, and the second taper surface 123b is closer to the optical axis X than the first taper surface 123a; the abutting surface 123c faces the second lens and is substantially perpendicular to the optical axis X, is disposed on the same side as the first taper surface 123a and the second taper surface 123b, and is in physical contact with the second lens; the connecting surface 123h extends from the side of the second taper surface 123b close to the optical axis X towards the optical axis X and connects the optical surface of the first lens.

[0187] The second lens includes a first corresponding conical surface 124d, a second corresponding conical surface 124e, a corresponding bearing surface 124f, and a connecting surface 124g. The first corresponding conical surface 124d is disposed on the side of the second lens facing the first lens and is disposed corresponding to the first conical surface 123a. The second corresponding conical surface 124e is disposed corresponding to the second conical surface 123b. The corresponding bearing surface 124f corresponds to the bearing surface 123c and is disposed on the same side as the first corresponding conical surface 124d and the second corresponding conical surface 124e. The connecting surface 124g extends from the side of the second corresponding conical surface 124e near the optical axis X toward the optical axis X and connects to the optical surface of the second lens (not shown in the figure). The optical axis X passes through the optical surface, and the light shield 132 is disposed between the connecting surface 123h and the connecting surface 124g.

[0188] It must be noted that the first conical surface 123a, the second conical surface 123b, and the bearing surface 123c form the annular fitting structure of the first lens, and the first corresponding conical surface 124d, the second corresponding conical surface 124e, and the corresponding bearing surface 124f form the annular fitting structure of the second lens. The first lens and the second lens are in solid contact and aligned through the annular fitting structure.

[0189] Depend on Figure 1J and Figure 1K It can be seen that when the ambient temperature is T1, the first conical surface 123a is in solid contact with the first corresponding conical surface 124d, the second conical surface 123b and the second corresponding conical surface 124e are spaced apart, and the first lens and the second lens are aligned; Figure 1L It can be seen that when the ambient temperature is T2, the second conical surface 123b and the second corresponding conical surface 124e are in solid contact, the first conical surface 123a and the first corresponding conical surface 124d are spaced apart, and the first lens and the second lens are aligned. Furthermore, when the ambient temperature is between T1 and T2, the distance between the first conical surface 123a and the first corresponding conical surface 124d changes with the ambient temperature and can be restored, and the bearing surface 123c maintains solid contact with the second lens. The bearing surface 123c can be used to maintain the distance between the first lens and the second lens on the optical axis X, so as to avoid deformation of the first lens and the second lens due to pressure on the first conical surface 123a, the second conical surface 123b, the first corresponding conical surface 124d, and the second corresponding conical surface 124e. Figures 1J to 1L In the above, T1 is 293.1K and T2 is 343.1K.

[0190] Specifically, by aligning the first and second lenses twice at different temperatures, the imaging lens can reduce the risk of lens shift. Furthermore, by having the first conical surface 123a in solid contact with the first corresponding conical surface 124d or the second conical surface 123b in solid contact with the second corresponding conical surface 124e, interference and the fit between the first and second lenses can be avoided.

[0191] Depend on Figure 1KIt is known that, in a cross section S perpendicular to the optical axis X and passing through the first conical surface 123a, the first corresponding conical surface 124d, the second conical surface 123b and the second corresponding conical surface 124e, the shortest distance between the first conical surface 123a and the second conical surface 123b is D, the shortest distance between the first corresponding conical surface 124d and the second corresponding conical surface 124e is d, the linear thermal expansion coefficient of the first lens is E1, the linear thermal expansion coefficient of the second lens is E2, and the included angle between the first conical surface 123a and the second conical surface 123b in a cross section (not shown in the figure) parallel to the optical axis X is θ, the parameters satisfy the following three conditions.

[0192]

[0193] When the ambient temperature is any temperature between T1 and T2, in the cross section S perpendicular to the optical axis X and passing through the first conical surface 123a and the corresponding conical surface (i.e. the first corresponding conical surface 124d), the shortest distance between the first conical surface 123a and the corresponding conical surface is D', and D' is not greater than 19.8 μm; when the ambient temperature is between T1 and T2, the first conical surface 123a and the corresponding conical surface have a maximum shortest distance D'max, and D'max is not less than 0.2 μm.

[0194] It should be noted that the first lens and the second lens have different linear thermal expansion coefficients, and the first lens and the second lens can further have different water absorption expansion rates.

[0195] Specifically, Figures 1D to 1F the lens 121, 122, Figures 1G to 1I the lens 122, 123, and Figures 1J to 1L the lens 123, 124 have the same ambient temperature range, which is used to simulate the case of uniform ambient temperature. When there is a temperature gradient in the imaging lens, a ring-shaped matching structure corresponding to the ambient temperature can be configured in the imaging lens. In other words, when the ambient temperature increases rapidly or when the heat source comes from a specific direction, there is a gradient change in the temperature in the imaging lens. By configuring a ring-shaped matching structure corresponding to different ambient temperature ranges, the alignment effect can be improved.

[0196] <Second Embodiment>

[0197] Please refer to Figures 2A to 2C , wherein Figure 2A a perspective view of an electronic device 20 according to a second embodiment of the present disclosure is shown, Figure 2B a perspective view of an electronic device 20 according to a second embodiment of the present disclosure is shown, Figure 2A a perspective view of an electronic device 20 according to a second embodiment of the present disclosure is shown, Figure 2C a perspective view of an electronic device 20 according to a second embodiment of the present disclosure is shown. By Figure 2A a perspective view of an electronic device 20 according to a second embodiment of the present disclosure is shown. By Figures 2A to 2CThe electronic device 20 comprises at least one image capturing device (not shown), a filter 23 and an electronic photosensitive element 21. The image capturing device comprises at least one imaging lens (not shown). The filter 23 is disposed on the image side of the imaging lens. The electronic photosensitive element 21 is disposed on an imaging surface 22 of the imaging lens.

[0198] Further, the imaging lens has an imaging light path (not shown) comprising an optical axis X. The imaging lens comprises, from the object side to the image side, a lens carrier 210, a lens 221, a lens 222, a light shield 231, a lens 223, a light shield 232, a lens 224, a light shield 233, a lens 225, a light shield 234, a lens 226, a light shield 235, a lens 227 and a fixing element 236. The lens carrier 210 accommodates the lenses 221, 222, 223, 224, 225, 226, 227, the light shields 231, 232, 233, 234, 235 and the fixing element 236. The light shields 231, 232, 233, 234, 235 are respectively disposed between the lenses 222, 223, between the lenses 223, 224, between the lenses 224, 225, between the lenses 225, 226 and between the lenses 226, 227 to block non-imaging light from entering the electronic photosensitive element 21 to form glare. It should be noted that the lenses 221, 222, 223, 224, 225, 226, 227 can be plastic lenses or glass lenses. The number, structure, surface shape and other optical characteristics can be configured according to different imaging requirements, and are not limited thereto.

[0199] The lens carrier 210 comprises an inner side surface 211 facing and surrounding the lenses 221, 222. The lens 222 is spaced apart from the lens carrier 210. In this way, the lens 222 can be prevented from being squeezed and deformed by the radial pressure of the lens carrier 210 during expansion and contraction, thereby further improving the yield of finished products.

[0200] From Figure 2C It can be seen that the two adjacent lenses (i.e. the lenses 221, 222) in the imaging lens respectively comprise annular fitting structures 261 (as shown in Figure 2G 261), 262 (as shown in Figure 2H 261), 262 (as shown in 261), 262 (as shown in

[0201] Please refer to Figures 2D to 2F 261), 262 (as shown in Figure 2D 261), 262 (as shown in Figure 2C 261), 262 (as shown in Figure 2E 261), 262 (as shown in Figure 2D 261), 262 (as shown in Figure 2F FIG. 1 shows a schematic diagram of a lens according to a first embodiment of the present application; Figure 2D FIG. 2 shows a partial enlarged view of the electronic device 20 in the second embodiment at different ambient temperatures. It can be seen that the lens 221, 222 is located opposite to the object side and the image side of the imaging lens, and the optical axis X passes through the lens 221, 222, wherein the lens 221 can serve as a first lens, and the lens 222 can serve as a second lens. Figures 2C to 2F The first lens comprises a first taper surface 221a, a second taper surface 221b, an abutting surface 221c, and a connecting surface 221g, wherein the first taper surface 221a is arranged on the side of the first lens facing the second lens and is coaxial with the optical axis X; the second taper surface 221b is arranged on the same side as the first taper surface 221a and faces the second lens, the second taper surface 221b is coaxial with the first taper surface 221a, and the second taper surface 221b is closer to the optical axis X than the first taper surface 221a; the abutting surface 221c faces the second lens and is substantially perpendicular to the optical axis X, is arranged on the same side as the first taper surface 221a and the second taper surface 221b, and is in physical contact with the second lens.

[0202] The second lens comprises a first corresponding taper surface 222d, a second corresponding taper surface 222e, a corresponding abutting surface 222f, and a connecting surface 222g, wherein the first corresponding taper surface 222d is arranged on the side of the second lens facing the first lens and is arranged correspondingly to the first taper surface 221a; the second corresponding taper surface 222e is arranged correspondingly to the second taper surface 221b; the corresponding abutting surface 222f corresponds to the abutting surface 221c and is arranged on the same side as the first corresponding taper surface 222d and the second corresponding taper surface 222e; and the connecting surface 221g is arranged in a spaced manner with the connecting surface 222g.

[0203] It should be noted that the first taper surface 221a, the second taper surface 221b, and the abutting surface 221c are annular matching structures 261 of the first lens, and the first corresponding taper surface 222d, the second corresponding taper surface 222e, and the corresponding abutting surface 222f are annular matching structures 262 of the second lens. The first lens and the second lens are in physical contact and aligned through the annular matching structures 261, 262.

[0204] Please refer to FIG. 1 for a detailed description of the lens according to the first embodiment of the present application.

[0205] Please refer to FIG. 2 for a detailed description of the lens according to the second embodiment of the present application. Figure 2G The first lens further comprises an outer side surface 221h, an optical surface 221i, and a glue 240, and the second lens further comprises an outer side surface 222h and an optical surface 222i. Figure 2H The first lens further comprises an outer side surface 221h, an optical surface 221i, and a glue 240, and the second lens further comprises an outer side surface 222h and an optical surface 222i. Figure 2G FIG. 3 shows a schematic diagram of the lens 221 in the second embodiment, Figure 2A FIG. 4 shows a schematic diagram of the lens 222 in the second embodiment. It can be seen that the first lens further comprises an outer side surface 221h, an optical surface 221i, and a glue 240, and the second lens further comprises an outer side surface 222h and an optical surface 222i. Figure 2H FIG. 5 shows a schematic diagram of the lens 221 in the third embodiment, Figure 2A FIG. 6 shows a schematic diagram of the lens 222 in the third embodiment. It can be seen that the first lens further comprises an outer side surface 221h, an optical surface 221i, and a glue 240, and the second lens further comprises an outer side surface 222h and an optical surface 222i. Figures 2D to 2H

[0206] ​The optical axis X passes through optical surfaces 221i and 222i, and a connecting surface 221g connects optical surface 221i to the annular mating structure 261, and a connecting surface 222g connects optical surface 222i to the annular mating structure 262. Outer surfaces 221h and 222h extend from the side of the annular mating structures 261 and 262 away from the optical axis X, and are further away from the optical axis X than the first conical surface 221a, the first corresponding conical surface 222d, the second conical surface 221b, or the second corresponding conical surface 222e. Outer surfaces 221h and 222h are correspondingly disposed with respect to the inner surface 211 of the lens carrier 210, and a colloid 240 is disposed between the outer surface 221h of the first lens and the inner surface 211 of the lens carrier 210. Furthermore, the colloid 240 can be used to absorb non-imaging light and can also be used to fix the first lens.

[0207] The connecting surfaces 221g, 222g and the outer surfaces 221h, 222h can be further configured as anti-glare surfaces or have anti-glare structures to reduce the amount of non-imaging light entering the electronic photosensitive element 21, thereby reducing glare and improving image quality and the resolving power of the imaging lens. The anti-glare structure can be a roughened surface, a low-reflection coating, an anti-glare protrusion, an anti-glare recess, a light-shielding coating, or a light-reducing coating, but is not limited to these. Figures 2D to 2F and Figure 2H It is understood that a light-shielding layer 250 of the imaging lens covers at least a portion of the outer surface 222h of the second lens, the connecting surface 221g of the first lens, and the connecting surface 222g of the second lens. The light-shielding layer 250 can be a colloid or coating with light-shielding or light-absorbing properties, and the light-shielding layer 250 can block non-imaging light from entering the electronic photosensitive element 21. This reduces the generation of glare.

[0208] Depend on Figure 2D and Figure 2E It can be seen that when the ambient temperature is T1, the first conical surface 221a is in solid contact with the first corresponding conical surface 222d, the second conical surface 221b and the second corresponding conical surface 222e are spaced apart, and the first lens and the second lens are aligned; from Figure 2F It can be seen that when the ambient temperature is T2, the second conical surface 221b and the second corresponding conical surface 222e are in solid contact, the first conical surface 221a and the first corresponding conical surface 222d are spaced apart, and the first lens and the second lens are aligned. Furthermore, when the ambient temperature is between T1 and T2, the distance between the first conical surface 221a and the first corresponding conical surface 222d changes with the ambient temperature and can be restored, and the bearing surface 221c maintains solid contact with the second lens. The bearing surface 221c can be used to maintain the distance between the first lens and the second lens on the optical axis X, so as to avoid deformation of the first lens and the second lens due to pressure on the first conical surface 221a, the second conical surface 221b, the first corresponding conical surface 222d, and the second corresponding conical surface 222e. Figures 2D to 2FIn the diagram, T1 is 273.1K and T2 is 293.1K. It must be noted that ambient temperature refers to the external ambient temperature of the imaging lens when the internal temperature of the imaging lens is in a steady state.

[0209] Specifically, by aligning the first and second lenses twice at different temperatures, the imaging lens can reduce the risk of lens shift. Furthermore, by having the first conical surface 221a and the first corresponding conical surface 222d in solid contact, or the second conical surface 221b and the second corresponding conical surface 222e in solid contact, interference and the fit between the first and second lenses can be avoided.

[0210] Depend on Figure 2E It can be seen that on a cross section S perpendicular to the optical axis X and passing through the first conical surface 221a, the first corresponding conical surface 222d, the second conical surface 221b, and the second corresponding conical surface 222e, the closest distance between the first conical surface 221a and the second conical surface 221b is D, the shortest distance between the first corresponding conical surface 222d and the second corresponding conical surface 222e is d, the linear thermal expansion coefficient of the first lens is E1, the linear thermal expansion coefficient of the second lens is E2, and the angle between the first conical surface 221a and the second conical surface 221b on a cross section parallel to the optical axis X (not shown in the figure) is θ. The parameters satisfy the conditions in Table 4 below.

[0211]

[0212] Furthermore, when the ambient temperature is between T1 and T2, on the cross section S perpendicular to the optical axis X and passing through the first conical surface 221a and the corresponding conical surface (i.e., the first corresponding conical surface 222d), the shortest distance between the first conical surface 221a and the corresponding conical surface is D', and D' is not greater than 19.8 μm; when the ambient temperature is between T1 and T2, the first conical surface 221a and the corresponding conical surface have a maximum shortest distance of D'max, and D'max is not less than 0.2 μm.

[0213] It must be noted that the first lens and the second lens have different coefficients of linear thermal expansion, and the first lens and the second lens may further have different water absorption expansion rates.

[0214] <Third Embodiment>

[0215] Please refer to Figures 3A to 3C ,in Figure 3A A perspective view of the electronic device 30 according to the third embodiment of this disclosure is shown. Figure 3B Drawing according to Figure 3A An exploded view of the electronic device 30 in the third embodiment. Figure 3C Drawing according to Figure 3A A schematic diagram of the electronic device 30 in the third embodiment. Figures 3A to 3CThe electronic device 30 comprises at least one image capturing device (not shown), an electronic photosensitive element 31 and a filter 33. The image capturing device comprises at least one imaging lens (not shown). The filter 33 is disposed on the image side of the imaging lens. The electronic photosensitive element 31 is disposed on an imaging surface 32 of the imaging lens.

[0216] Further, the imaging lens has an imaging light path (not shown) comprising a first optical axis X1 and a second optical axis X2. The imaging lens comprises, from the object side to the image side, a fixing element 331, a lens 321, a light shield 332, a lens 322, a lens 323, a lens carrier 310a, a lens carrier 310b, a lens 324, a space spacing element 333, a lens 325 and a fixing element 334. The lens carrier 310a accommodates the lenses 321, 322, 323, the fixing element 331 and the light shield 332. The lens carrier 310b accommodates the lens 324, the lens 325, the space spacing element 333 and the fixing element 334. The light shield 332 is disposed between the lenses 321 and 322 to block non-imaging light from entering the electronic photosensitive element 31 to form glare. It should be noted that the lens 321 is a plastic lens. The lenses 322, 323, 324 and 325 can be plastic lenses or glass lenses. The number, structure, surface shape and other optical characteristics can be configured according to different imaging requirements, and are not limited thereto.

[0217] Please refer to Figure 3D , which Figure 3D illustrates a partial schematic view of the electronic device 30 according to the third embodiment. As shown in Figure 3C , the electronic device 30 comprises an image capturing device 30a, an electronic photosensitive element 31 and a filter 33. The image capturing device 30a comprises an imaging lens 30b. The filter 33 is disposed on the image side of the imaging lens 30b. The electronic photosensitive element 31 is disposed on an imaging surface 32 of the imaging lens 30b. Figure 3D It can be seen that the two adjacent lenses (i.e. the lenses 321 and 322) in the imaging lens each comprise a ring-shaped matching structure 361 (as shown in Figure 3I ) and 362 (as shown in Figure 3K ), which are used to solve the problem of deviation caused by changes in environmental factors (i.e. temperature and humidity). The ring-shaped matching structures 361 and 362 between the lenses 321 and 322 will be described below.

[0218] Please refer to Figures 3E to 3H , wherein Figure 3E illustrates a partial enlarged view of the electronic device 30 according to the third embodiment; Figure 3D illustrates a partial enlarged view of the electronic device 30 according to the third embodiment; Figure 3F illustrates a partial enlarged view of the electronic device 30 according to the third embodiment; Figure 3E illustrates a partial enlarged view of the electronic device 30 according to the third embodiment at different environmental temperatures; Figure 3G illustrates a partial enlarged view of the electronic device 30 according to the third embodiment at different environmental temperatures; Figure 3E illustrates a partial enlarged view of the electronic device 30 according to the third embodiment at different environmental temperatures; Figure 3H illustrates a partial enlarged view of the electronic device 30 according to the third embodiment at different environmental temperatures; Figure 3A illustrates a partial enlarged view of the electronic device 30 according to the third embodiment at different environmental temperatures; Figures 3C to 3HIt can be seen that the lenses 321 and 322 are located opposite to the object side and the image side of the imaging lens, and the second optical axis X2 passes through the lenses 321 and 322, wherein the lens 321 can serve as a first lens, and the lens 322 can serve as a second lens.

[0219] The first lens comprises a first taper surface 321a, a second taper surface 321b, an abutting surface 321c and a connecting surface 321g, wherein the first taper surface 321a is arranged on the side of the first lens facing the second lens and takes the second optical axis X2 as the axis; the second taper surface 321b is arranged on the same side as the first taper surface 321a and faces the second lens, the second taper surface 321b is coaxial with the first taper surface 321a, and the second taper surface 321b is closer to the second optical axis X2 than the first taper surface 321a; the abutting surface 321c faces the second lens and is substantially perpendicular to the second optical axis X2, is arranged on the same side as the first taper surface 321a and the second taper surface 321b, and is in physical contact with the second lens.

[0220] The second lens comprises a first corresponding taper surface 322d, a second corresponding taper surface 322e, a corresponding abutting surface 322f and a connecting surface 322g, wherein the first corresponding taper surface 322d is arranged on the side of the second lens facing the first lens and is arranged correspondingly to the first taper surface 321a; the second corresponding taper surface 322e is arranged correspondingly to the second taper surface 321b; the corresponding abutting surface 322f corresponds to the abutting surface 321c and is arranged on the same side as the first corresponding taper surface 322d and the second corresponding taper surface 322e; and the connecting surface 321g is arranged spaced apart from the connecting surface 322g.

[0221] It should be noted that the first taper surface 321a, the second taper surface 321b and the abutting surface 321c are annular matching structures 361 of the first lens, and the first corresponding taper surface 322d, the second corresponding taper surface 322e and the corresponding abutting surface 322f are annular matching structures 362 of the second lens. The first lens and the second lens are in physical contact and aligned through the annular matching structures 361 and 362.

[0222] From Figure 3G It can be seen that when the ambient temperature is T1, the first taper surface 321a and the first corresponding taper surface 322d are in physical contact, the second taper surface 321b and the second corresponding taper surface 322e are arranged spaced apart, and the first lens and the second lens are aligned; from Figure 3E and Figure 3FAs shown in FIG. 3, when the ambient temperature is T2, the second taper surface 321b is in physical contact with the second corresponding taper surface 322e, the first taper surface 321a is spaced apart from the first corresponding taper surface 322d, and the first lens is aligned with the second lens. Furthermore, when the ambient temperature is between T1 and T2, the distance between the first taper surface 321a and the first corresponding taper surface 322d changes with the ambient temperature and can be restored, and the abutting surface 321c remains in physical contact with the second lens, wherein the abutting surface 321c can be used to maintain the distance between the first lens and the second lens along the second optical axis X2 to avoid deformation of the first lens and the second lens due to the pressure on the first taper surface 321a, the second taper surface 321b, the first corresponding taper surface 322d, and the second corresponding taper surface 322e. Figures 3E to 3G In the embodiment, T1 is 373.1 K and T2 is 273.1 K. It should be noted that the ambient temperature refers to the temperature of the environment outside the imaging lens when the temperature inside the imaging lens is in a steady state.

[0223] Specifically, by aligning the first lens and the second lens at different temperatures, the imaging lens can reduce the risk of lens shift. Furthermore, by bringing the first taper surface 321a into physical contact with the first corresponding taper surface 322d or the second taper surface 321b into physical contact with the second corresponding taper surface 322e, interference and the fit between the first lens and the second lens can be avoided.

[0224] Please refer to Figure 3I and Figure 3J wherein Figure 3I a schematic diagram of a lens 321 according to a third embodiment is shown, Figure 3A a schematic diagram of a lens 321 according to a third embodiment is shown, Figure 3J a schematic diagram of a lens 321 according to a third embodiment is shown, Figure 3A a schematic diagram of a lens 321 according to a third embodiment is shown, Figure 3B , Figure 3C , Figure 3I and Figure 3J As shown in FIG. 3, when the ambient temperature is T2, the second taper surface 321b is in physical contact with the second corresponding taper surface 322e, the first taper surface 321a is spaced apart from the first corresponding taper surface 322d, and the first lens is aligned with the second lens. Furthermore, when the ambient temperature is between T1 and T2, the distance between the first taper surface 321a and the first corresponding taper surface 322d changes with the ambient temperature and can be restored, and the abutting surface 321c remains in physical contact with the second lens, wherein the abutting surface 321c can be used to maintain the distance between the first lens and the second lens along the second optical axis X2 to avoid deformation of the first lens and the second lens due to the pressure on the first taper surface 321a, the second taper surface 321b, the first corresponding taper surface 322d, and the second corresponding taper surface 322e.

[0225] The light-incident surface 321j comprises an axisymmetric curved surface, the imaging light path passes through the axisymmetric curved surface, and the axisymmetric curved surface is coaxially arranged with the first conical surface 321a in the second optical axis X2 direction, wherein the axisymmetric curved surface can be a spherical surface, an aspherical surface or a free curved surface. Accordingly, the first lens can simultaneously deflect the imaging light path and change the image field, thereby reducing the number of optical components and improving the assembly efficiency.

[0226] By Figure 3I It can be seen that the light-incident surface 321j, the reflecting surface 321k and the light-incident surface 321L of the first lens are integrally formed by plastic injection molding, and the reflecting surface 321k can be further provided with a reflecting layer R, wherein the reflecting layer R can be a metal layer or a high-refractive plating layer, but is not limited thereto. In this way, the reflectivity of the reflecting surface 321k is improved.

[0227] Please refer to Figure 3K and Figure 3L , wherein Figure 3K a schematic diagram of a lens 322 according to Figure 3A a third embodiment is shown, Figure 3L a schematic diagram of another lens 322 according to Figure 3A a third embodiment is shown. By Figure 3H , Figure 3K and Figure 3L It can be seen that the first lens further comprises at least one reducing surface 321m, and the second lens further comprises an optical surface 322i and at least one reducing surface 322m, wherein the second optical axis X2 passes through the optical surface 322i, and the connecting surface 322g connects the optical surface 322i and the annular matching structure 362; the reducing surfaces 321m and 322m respectively reduce from the side of the first lens and the second lens away from the second optical axis X2 to the direction close to the second optical axis X2. Specifically, the reducing surface 321m intersects the first corresponding conical surface 322d of the second lens, and the reducing surface 322m intersects the first conical surface 321a of the first lens, so that the first conical surface 321a and the first corresponding conical surface 322d present a C shape.

[0228] It must be pointed out that the first conical surface 321a and the first corresponding conical surface 322d can not completely surround the second optical axis X2, and the reducing surfaces 321m and 322m can serve as marks for aligning the first lens and the second lens perpendicular to the second optical axis X2, so as to improve the assembly efficiency. Furthermore, the reducing surfaces 321m and 322m can be formed by a transfer mold, or can be cross sections of the first lens and the second lens after secondary processing, and the reducing surfaces 321m and 322m can be further provided with injection molding gates. The reducing surfaces 321m and 322m can make the first lens and the second lens present a non-circular shape in the projection perpendicular to the second optical axis X2, so as to reduce the size of the imaging lens in the direction perpendicular to the second optical axis X2.

[0229] By Figure 3FIt is known that, in a cross section S perpendicular to the second optical axis X2 and passing through the first taper surface 321a, the first corresponding taper surface 322d, the second taper surface 321b and the second corresponding taper surface 322e, the shortest distance between the first taper surface 321a and the second taper surface 321b is D, the shortest distance between the first corresponding taper surface 322d and the second corresponding taper surface 322e is d, the linear thermal expansion coefficient of the first lens is E1, the linear thermal expansion coefficient of the second lens is E2, and the included angle between the first taper surface 321a and the second taper surface 321b in a cross section (not shown in the figure) parallel to the second optical axis X2 is θ, and the parameters satisfy the following five conditions.

[0230]

[0231] When the ambient temperature is any temperature between T1 and T2, in the cross section S perpendicular to the second optical axis X2 and passing through the first taper surface 321a and the corresponding taper surface (i.e. the first corresponding taper surface 322d), the shortest distance between the first taper surface 321a and the corresponding taper surface is D', and D' is not greater than 19.8 μm; when the ambient temperature is between T1 and T2, the first taper surface 321a and the corresponding taper surface have a maximum shortest distance D'max, and D'max is not less than 0.2 μm.

[0232] It should be noted that the first lens and the second lens have different linear thermal expansion coefficients, and the first lens and the second lens can further have different water absorption expansion rates.

[0233] <Fourth Embodiment>

[0234] Please refer to Figure 4A and Figure 4B wherein Figure 4A a perspective view of a lens 421 according to a fourth embodiment of the present disclosure is shown, Figure 4B a perspective view of a lens 421 according to a fourth embodiment of the present disclosure is shown. By Figure 4A a perspective view of a lens 421 according to a fourth embodiment of the present disclosure is shown. By Figure 4A and Figure 4B It is known that the imaging lens has an imaging optical path (not shown in the figure), and the imaging optical path includes a first optical axis X1 and a second optical axis X2. The imaging lens (not shown in the figure) includes the lens 421 and a second lens (not shown in the figure) from the object side to the image side, and the second optical axis X2 passes through the lens 421 and the second lens, wherein the lens 421 can serve as the first lens.

[0235] Specifically, the first lens includes an annular fitting structure 461, wherein the annular fitting structure 461 includes a first conical surface (not shown), a second conical surface (not shown), and a bearing surface (not shown). Specifically, the first conical surface is disposed on the side of the first lens facing the second lens, and is centered on the second optical axis X2; the second conical surface is disposed on the same side as the first conical surface and faces the second lens, the second conical surface is coaxial with the first conical surface, and the second conical surface is closer to the second optical axis X2 than the first conical surface; the bearing surface faces the second lens and is substantially perpendicular to the second optical axis X2, is disposed on the same side as the first and second conical surfaces, and is in contact with the second lens.

[0236] The first lens is a reflecting lens, and it is used to allow the imaging light path to enter the first lens along the first optical axis X1, and reflect the imaging light path to enter the imaging lens along the second optical axis X2. The first lens also includes, in sequence along the imaging light path, an incident surface 421j, at least one reflecting surface 421k, and an exiting surface 421L. The imaging light path bends towards a mirror surface at the reflecting surface 421k. Furthermore, the incident surface 421j and the exiting surface 421L each have a radius of curvature. The incident surface 421j and the exiting surface 421L can be spherical or aspherical. The incident surface 421j is concave near the axis, and the exiting surface 421L is convex near the axis. The reflecting surface 421k is a plane. The radius of curvature of the incident surface 421j is 27.62 mm, and the radius of curvature of the exiting surface 421L is 14.55 mm.

[0237] The light-incident surface 421j and the light-exit surface 421L each include an axisymmetric surface. The imaging optical path passes through the axisymmetric surface, and the axisymmetric surface of the light-exit surface 421L is coaxially arranged with the first conical surface in the second optical axis X2 direction. The axisymmetric surface can be a spherical surface, an aspherical surface, or a freeform surface. Accordingly, the first lens can simultaneously deflect the imaging optical path and change the image field, thereby reducing optical components and improving assembly efficiency.

[0238] Please refer to the following: Figure 4C Its drawing is based on Figure 4A A schematic diagram of the lens 421 and the fixing element 431 in the fourth embodiment. Figure 4C It is understood that the first lens also includes a reflective surface element 480 and an optical surface element 470, wherein the reflective surface element 480 forms the reflective surface 421k of the first lens, and the optical surface element 470 forms the light-incident surface 421j and the light-exit surface 421L of the first lens. The reflective surface element 480 is fixed to the optical surface element 470 by the fixing element 431.

[0239] In the fourth embodiment, the reflective element 480 can be made of glass, the optical element 470 can be made of plastic, and the reflective element 480 can have a higher refractive index than the optical element 470. This allows incident light to be easily totally internally reflected by the reflective surface 421k, thereby increasing brightness.

[0240] Furthermore, the first lens of the fourth embodiment can be applied to the imaging lens of the third embodiment, and the first lens and the lens 322 of the third embodiment (i.e., as the second lens) can be in physical contact and aligned with the annular cooperation structure 461 and the annular cooperation structure 362.

[0241] In addition, the fourth embodiment has the same structure and configuration relationship as the remaining elements of the third embodiment, and will not be described again.

[0242] < Fifth Embodiment >

[0243] Please refer to Figure 5A and Figure 5B , wherein Figure 5A a perspective view of a lens 521 according to the fifth embodiment of the present disclosure is shown, Figure 5B a schematic view of the lens 521 according to the Figure 5A fifth embodiment is shown. As can be seen from Figure 5A and Figure 5B , the imaging lens has an imaging light path (not shown in the figure), and the imaging light path includes a first optical axis X1 and a second optical axis X2. The imaging lens (not shown in the figure) includes the lens 521 and a second lens (not shown in the figure) from the object side to the image side, and the second optical axis X2 passes through the lens 521 and the second lens, wherein the lens 521 can be used as the first lens.

[0244] Specifically, the first lens includes an annular cooperation structure 561 and a colloid 540, wherein the annular cooperation structure 561 includes a first taper surface (not shown in the figure), a second taper surface (not shown in the figure), and an abutting surface (not shown in the figure). Specifically, the first taper surface is arranged on the side of the first lens facing the second lens, and the second optical axis X2 is taken as the axis; the second taper surface and the first taper surface are arranged on the same side and face the second lens, the second taper surface and the first taper surface are coaxial, and the second taper surface is closer to the second optical axis X2 than the first taper surface; the abutting surface faces the second lens and is substantially perpendicular to the second optical axis X2, is arranged on the same side as the first taper surface and the second taper surface, and is in physical contact with the second lens.

[0245] The first lens is a reflective lens, and the first lens is used to make the imaging light path enter the first lens along the direction of the first optical axis X1, and reflect the imaging light path to enter the imaging lens along the second optical axis X2, wherein the first lens sequentially comprises an entrance surface 521j, at least one reflection surface 521k and an exit surface 521L along the imaging light path, and the imaging light path is turned to a mirror direction at the reflection surface 521k. Further, the entrance surface 521j and the exit surface 521L have a curvature radius respectively, the entrance surface 521j and the exit surface 521L can be spherical or aspherical, the entrance surface 521j is a concave surface at the near axis, the exit surface 521L is a convex surface at the near axis, and the reflection surface 521k is a plane, wherein the curvature radius of the entrance surface 521j is 27.62mm, and the curvature radius of the exit surface 521L is 14.55mm.

[0246] The entrance surface 521j and the exit surface 521L respectively comprise an axisymmetric surface, the imaging light path passes through the axisymmetric surface, and the axisymmetric surface of the exit surface 521L is coaxially arranged with the first conical surface in the direction of the second optical axis X2, wherein the axisymmetric surface can be spherical, aspherical or free curved surface. Accordingly, the first lens can simultaneously turn the imaging light path and change the image field to reduce the optical parts and improve the assembly efficiency.

[0247] Please refer to Figure 5C and Figure 5D wherein Figure 5C illustrate according to Figure 5A the exploded view of the lens 521 in the fifth embodiment, Figure 5D illustrate according to Figure 5A the schematic diagram of the optical surface element 570 of the lens 521 in the fifth embodiment. From Figure 5C and Figure 5D it can be known that the first lens further comprises a reflection surface element 580 and an optical surface element 570, wherein the reflection surface element 580 forms the entrance surface 521j and the reflection surface 521k of the first lens, and the optical surface element 570 forms the exit surface 521L of the first lens.

[0248] The reflection surface element 580 and the optical surface element 570 are bonded through the colloid 540. In this way, while fixing the relative positions of the reflection surface element 580 and the optical surface element 570, dust interlayer can be avoided to reduce glare.

[0249] In the fifth embodiment, the material of the reflection surface element 580 can be glass, the material of the optical surface element 570 can be plastic, and the reflection surface element 580 can have a higher refractive index than the optical surface element 570. In this way, the incident light is easily totally reflected at the reflection surface 521k to improve the brightness.

[0250] From Figure 5DIt is known that the first lens includes four reduction surfaces 521m and four outer surfaces 521h. The reduction surfaces 521m are reduced from the outer surfaces 521h away from the second optical axis X2 to the side closer to the second optical axis X2. The annular fitting structure 561 intersects with the reduction surfaces 521m, so that the annular fitting structure 561 forms a C-shape corresponding to the second optical axis X2.

[0251] Furthermore, the first lens of the fifth embodiment can be applied to the imaging lens of the third embodiment, and the first lens and the lens 322 of the third embodiment (which can be used as the second lens) can be physically contacted and aligned through the annular fitting structure 561 and the annular fitting structure 362.

[0252] Furthermore, the structure and configuration of the remaining components in the fifth embodiment are the same as those in the third embodiment, and will not be described again here.

[0253] <Sixth Embodiment>

[0254] Please refer to Figures 6A to 6C ,in Figure 6A A schematic diagram of the electronic device 60 according to the sixth embodiment of this disclosure is shown. Figure 6B Drawing according to Figure 6A Another schematic diagram of the electronic device 60 in the sixth embodiment, Figure 6C Drawing according to Figure 6A Another schematic diagram of the electronic device 60 in the sixth embodiment. Figures 6A to 6C It is understood that the electronic device 60 is a smartphone, but it can also be a notebook computer, tablet computer, dashcam, etc., but is not limited thereto. The electronic device 60 includes at least one image capturing device, an electronic photosensitive element (not shown), and an image capturing control interface 610, wherein the image capturing device includes at least one imaging lens, and the electronic photosensitive element is disposed on an imaging surface of the imaging lens (not shown).

[0255] In the sixth embodiment, the imaging lenses are respectively ultra-wide-angle imaging devices 621 and 622, super telephoto imaging device 623, wide-angle imaging device 624 and 625, telephoto imaging device 626, TOF module (Time-Of-Flight) 627, macro imaging device 628, and biometric sensing imaging device 629. The TOF module 627 and biometric sensing imaging device 629 can also be other types of imaging devices, and are not limited to this configuration. Specifically, the imaging lenses can be the imaging lenses of the first to fifth embodiments described above, but this disclosure is not limited thereto.

[0256] In detail, in the sixth embodiment, the ultra-wide-angle image capturing device 621, the wide-angle image capturing device 624, the TOF module 627, and the biometric sensing image capturing device 629 are disposed on the front side of the electronic device 60, and the ultra-wide-angle image capturing device 622, the super-telephoto image capturing device 623, the wide-angle image capturing device 625, the telephoto image capturing device 626, and the macro image capturing device 628 are disposed on the back side of the electronic device 60.

[0257] The image capturing control interface 610 can be a touch screen for displaying a screen and having a touch function, and can be used to manually adjust the shooting angle. In detail, the image capturing control interface 610 includes an image playback button 611, an image capturing module switching button 612, a focus shooting button 613, an integrated menu button 614, and a zoom control button 615. Further, the user enters the shooting mode through the image capturing control interface 610 of the electronic device 60, the image capturing module switching button 612 can freely switch one of the ultra-wide-angle image capturing devices 621, 622, the super-telephoto image capturing device 623, the wide-angle image capturing devices 624, 625, the telephoto image capturing device 626, and the macro image capturing device 628 to perform shooting, the zoom control button 615 is used to adjust the zoom, the focus shooting button 613 is used to perform image capturing after the scene is well set and one of the ultra-wide-angle image capturing devices 621, 622, the super-telephoto image capturing device 623, the wide-angle image capturing devices 624, 625, the telephoto image capturing device 626, and the macro image capturing device 628 is determined, the image playback button 611 allows the user to view the photos after image capturing, and the integrated menu button 614 is used to adjust the details during image capturing (such as timed shooting, shooting ratio, etc.).

[0258] The electronic device 60 can further include a prompt light 63 disposed on the front side of the electronic device 60 and used to prompt the user about unread messages, missed calls, and phone status.

[0259] Further, after the user enters the shooting mode through the image capturing control interface 610 of the electronic device 60, the imaging lens converges the imaging light on the electronic photosensitive element and outputs the electronic signal related to the image to the image signal processor (not labeled in the figure) of the single-chip system 65. The single-chip system 65 can further include a random access memory (RAM) (not labeled in the figure), a central processing unit (not labeled in the figure), and a storage unit (not labeled in the figure), and can further include but not limited to a display unit, a control unit, a read-only memory (ROM), or a combination thereof.

[0260] Depending on the camera specifications of the electronic device 60, the electronic device 60 may also include an optical image stabilization component (not shown). Furthermore, the electronic device 60 may also include at least one focus assist element 66 and at least one sensing element (not shown). The focus assist element 66 may include a color temperature compensation light-emitting element 661, an infrared rangefinder (not shown), a laser focus module (not shown), etc. The sensing element may have the function of sensing physical momentum and kinetic energy, such as an accelerometer, gyroscope, Hall effect element, position locator, signal transmission module, etc., 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 of the imaging lens in the electronic device 60, resulting in good image quality. This also helps the electronic device 60 according to this disclosure to have multiple shooting modes, such as optimized Selfie, low-light HDR (High Dynamic Range) imaging, and high-resolution 4K video recording. In addition, users can directly view the camera's shooting screen through the image capture control interface 610 and manually operate the framing range on the image capture control interface 610 to achieve the WYSIWYG autofocus function.

[0261] Furthermore, the imaging lens, electronic image sensor, optical image stabilization assembly, sensing element, and focusing assist element 66 can be mounted on a circuit board 64 and electrically connected to related components such as an image signal processor via a connector 641 to execute the shooting process. The circuit board 64 can be a flexible printed circuit board (FPC). Current electronic devices, such as smartphones, tend to be thinner and lighter. Mounting the imaging lens and related components on a circuit board and then using connectors to integrate the circuitry onto the mainboard of the electronic device satisfies the structural design and circuit layout requirements of the limited internal space of the electronic device, providing greater flexibility. It also allows for more flexible control of the imaging lens's autofocus function through the device's touchscreen. In the sixth embodiment, the sensing element and focusing assist element 66 are mounted on the circuit board 64 and at least one other flexible circuit board (not shown), and electrically connected to related components such as an imaging signal processing element via corresponding connectors to execute the shooting process. In other embodiments (not shown), the sensing element and auxiliary optical element can also be mounted on the mainboard of the electronic device or other types of carrier boards, depending on the structural design and circuit layout requirements.

[0262] Please refer to Figure 6D Its drawing is based on Figure 6A A schematic diagram of images captured by the ultra-wide-angle imaging devices 621 and 622 in the sixth embodiment. Figure 6DIt can be seen that the imaging results of ultra-wide-angle imaging devices 621 and 622 can have a larger angle of view and depth of field than those of wide-angle imaging devices 624 and 625, but are often accompanied by greater distortion. Specifically, Figure 6D The angle of view is 105 to 125 degrees, and the equivalent focal length is 11 mm to 14 mm.

[0263] Please refer to Figure 6E Its drawing is based on Figure 6A A schematic diagram of images captured by the wide-angle imaging devices 624 and 625 in the sixth embodiment. (By...) Figure 6E It can be seen that the wide-angle imaging devices 624 and 625 can capture images within a certain range with high resolution and low distortion. Specifically, Figure 6E for Figure 6D Enlarged portion of the image. Figure 6E The field of view is 70 to 90 degrees, and the equivalent focal length is 22mm to 30mm.

[0264] Please refer to Figure 6F Its drawing is based on Figure 6A A schematic diagram of an image captured by the telescopic imaging device 626 in the sixth embodiment. Figure 6F It can be seen that the imaging result of the telescopic imaging device 626 can have a smaller angle of view and depth of field than that of the wide-angle imaging devices 624 and 625, and can be used to photograph moving targets. That is, the actuator (not shown in the figure) of the electronic device 60 can drive the telescopic imaging device 626 to perform fast and continuous autofocus on the target, so that the target does not become blurry as it moves away from the focus position. Specifically, Figure 6F for Figure 6E Enlarged portion of the image. Figure 6F The angle of view is 10 to 40 degrees, and the equivalent focal length is 60mm to 300mm.

[0265] Please refer to Figure 6G Its drawing is based on Figure 6A A schematic diagram of an image captured by the super telescope imaging device 623 in the sixth embodiment. (By...) Figure 6G It is known that the super telephoto imaging device 623 produces an image with a smaller angle of view and depth of field than the telephoto imaging device 626, making it more prone to defocusing due to camera shake. Therefore, the actuator provides a driving force to focus the super telephoto imaging device 623 on the target object while simultaneously providing a feedback force to correct for camera shake, thus achieving optical image stabilization. Specifically, Figure 6G for Figure 6E Enlarged portion of the image. Figure 6G The angle of view is 4 to 8 degrees, and the equivalent focal length is 400mm to 600mm.

[0266] Depend on Figures 6D to 6G It is known that, by using imaging lenses with different focal lengths and image processing techniques, the electronic device 60 can achieve zooming function. It must be pointed out that the equivalent focal length is an estimated value after conversion, which may be different from the actual focal length due to the design of the imaging lens and the size of the electronic photosensitive element.

[0267] Although the present application has been disclosed with the above-mentioned embodiments, it is not intended to limit the present application, and anyone skilled in the art can make some changes and modifications without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application shall be subject to the scope defined by the appended claims.

Claims

1. An imaging lens, characterized in that, A first lens and a second lens are included from an object side to an image side, and an optical axis passes through the first lens and the second lens; The first lens includes: a first taper surface disposed on a side of the first lens facing the second lens and coaxial with the optical axis; and a second taper surface disposed on the same side as the first taper surface and coaxial with the first taper surface, and closer to the optical axis than the first taper surface; The second lens includes: a first corresponding taper surface disposed corresponding to the first taper surface; and a second corresponding taper surface disposed corresponding to the second taper surface; When the ambient temperature is T1, the first taper surface and the first corresponding taper surface are in physical contact, the second taper surface and the second corresponding taper surface are spaced apart, and the first lens and the second lens are aligned; when the ambient temperature is T2, the second taper surface and the second corresponding taper surface are in physical contact, the first taper surface and the first corresponding taper surface are spaced apart, and the first lens and the second lens are aligned, which satisfies the following condition: 5K≤|T1-T2|≤200K.

2. The imaging lens according to claim 1, characterized in that, On a cross section perpendicular to the optical axis and passing through the first taper surface, the first corresponding taper surface, the second taper surface, and the second corresponding taper surface, the closest distance between the first taper surface and the second taper surface is D, and the shortest distance between the first corresponding taper surface and the second corresponding taper surface is d, which satisfies the following condition: 0.2μm≤|D-d|≤19.8μm.

3. The imaging lens according to claim 1, characterized in that, At least one of the first lens and the second lens further includes an outer side surface farther from the optical axis than the first taper surface, the first corresponding taper surface, the second taper surface, or the second corresponding taper surface, and a light shielding layer of the imaging lens covers at least a portion of the outer side surface.

4. The imaging lens according to claim 1, characterized in that, Further includes: a lens carrier accommodating the first lens and the second lens and including an inner side surface facing and surrounding the first lens and the second lens; One of the first lens and the second lens is spaced apart from the lens carrier.

5. The imaging lens according to claim 1, characterized in that, The first lens and the second lens have different linear thermal expansion coefficients, the linear thermal expansion coefficient of the first lens is E1, and the linear thermal expansion coefficient of the second lens is E2, which satisfies the following condition: 0.005≤|(E1-E2) / (E1+E2)|≤0.

95.

6. The imaging lens according to claim 1, characterized in that, An included angle of the first taper surface and the second taper surface on a cross section parallel to the optical axis is θ, which satisfies the following condition: 10 degrees≤θ≤90 degrees.

7. The imaging lens according to claim 1, characterized in that, The first lens further includes an abutting surface facing the second lens and substantially perpendicular to the optical axis; When the ambient temperature is between T1 and T2, the abutting surface maintains physical contact with the second lens.

8. The imaging lens according to claim 1, characterized in that, One of the first lens and the second lens includes at least one tapered surface tapering from a side of the one of the first lens and the second lens farther from the optical axis toward a direction closer to the optical axis.

9. The imaging lens according to claim 1, characterized in that, One of the first lens and the second lens is a reflective lens sequentially including an entrance surface, at least one reflection surface, and an exit surface along an imaging light path, the imaging light path being turned in a mirror surface direction at the at least one reflection surface; The at least one of the entrance surface and the exit surface comprises an axisymmetric curved surface, the imaging light path passes through the axisymmetric curved surface, and the axisymmetric curved surface is coaxially arranged with the first conical surface in the optical axis direction.

10. The imaging lens according to claim 9, characterized in that, The entrance surface, the at least one reflecting surface, and the exit surface of the reflecting lens are integrally formed by plastic injection molding.

11. The imaging lens according to claim 9, characterized in that, The reflecting lens further comprises a reflecting surface element and an optical surface element, the reflecting surface element forms the at least one reflecting surface, and the optical surface element forms at least one of the entrance surface and the exit surface.

12. The imaging lens according to claim 11, characterized in that, The reflecting lens further comprises a colloid, the colloid bonds the reflecting surface element and the optical surface element.

13. An imaging lens characterized by comprising, in order from the object, A first lens and a second lens are arranged along an optical axis from an object side to an image side; The first lens comprises: a first conical surface arranged on a side of the first lens facing the second lens and taking the optical axis as an axis; and a bearing surface arranged on the same side as the first conical surface and substantially perpendicular to the optical axis, and in physical contact with the second lens; The second lens comprises: a corresponding conical surface arranged on a side of the second lens facing the first lens and arranged correspondingly with the first conical surface; When the ambient temperature is between T1 and T2, the distance between the first conical surface and the corresponding conical surface changes with the ambient temperature and is recoverable, and the bearing surface remains in physical contact with the second lens; when the ambient temperature is T1, the first conical surface and the corresponding conical surface are arranged at a distance; when the ambient temperature is T2, the first conical surface and the corresponding conical surface are in physical contact, and the first lens and the second lens are aligned, which satisfies the following condition: 5K≤|T1-T2|≤200K.

14. The imaging lens according to claim 13, characterized in that, When the ambient temperature is between any temperature between T1 and T2, the shortest distance between the first conical surface and the corresponding conical surface on a cross section perpendicular to the optical axis and passing through the first conical surface and the corresponding conical surface is D', and D' is not greater than 19.8 μm; when the ambient temperature is between T1 and T2, the first conical surface and the corresponding conical surface have a maximum shortest distance D'max, and D'max is not less than 0.2 μm.

15. The imaging lens according to claim 13, characterized in that, The first lens further comprises a second conical surface facing the second lens, and when the ambient temperature is T1, the second conical surface is in physical contact with the second lens; The angle between the first conical surface and the second conical surface on a cross section parallel to the optical axis is θ, which satisfies the following condition: 10 degrees≤θ≤90 degrees.

16. The imaging lens according to claim 13, characterized in that, At least one of the first lens and the second lens further comprises an outer side surface farther away from the optical axis than the first conical surface, the bearing surface, or the corresponding conical surface, and a light shielding layer of the imaging lens covers at least a part of the outer side surface.

17. The imaging lens according to claim 13, characterized in that, Further comprising: a lens carrier accommodating the first lens and the second lens, and comprising an inner side surface, wherein the inner side surface faces and surrounds the first lens and the second lens; One of the first lens and the second lens is arranged at a distance from the lens carrier.

18. The imaging lens according to claim 13, characterized in that, One of the first lens and the second lens is a reflecting lens, which sequentially comprises an entrance surface, at least one reflecting surface, and an exit surface along an imaging light path, and the imaging light path is turned in a mirror surface direction at the at least one reflecting surface; At least one of the light-incoming surface and the light-outgoing surface comprises an axially symmetric curved surface, the imaging light path passes through the axially symmetric curved surface, and the axially symmetric curved surface is coaxially arranged with the first conical surface in the direction of the optical axis.

19. The imaging lens according to claim 18, characterized in that, The reflective lens further comprises a reflective surface element and an optical surface element, the reflective surface element forms the at least one reflective surface, and the optical surface element forms at least one of the light-incoming surface and the light-outgoing surface. The reflective lens further comprises a colloid, the colloid bonds the reflective surface element and the optical surface element.

20. The imaging lens according to claim 19, characterized in that, One of the first lens and the second lens comprises at least one tapered surface, the at least one tapered surface is tapered from a side of the one of the first lens and the second lens away from the optical axis to a direction close to the optical axis.

21. An imaging lens characterized by comprising, in order from the object, A first lens and a second lens are arranged from an object side to an image side, and an optical axis passes through the first lens and the second lens. The first lens comprises: A first conical surface arranged on a side of the first lens facing the second lens and taking the optical axis as an axis; and A second conical surface arranged on the same side as the first conical surface and coaxial with the first conical surface, and the second conical surface is closer to the optical axis than the first conical surface. The second lens comprises: A first corresponding conical surface arranged corresponding to the first conical surface; and A second corresponding conical surface arranged corresponding to the second conical surface. When the first conical surface and the first corresponding conical surface are in physical contact and the second conical surface and the second corresponding conical surface are in physical contact, and on a cross section perpendicular to the optical axis and passing through the first conical surface, the first corresponding conical surface, the second conical surface, and the second corresponding conical surface, the closest distance between the first conical surface and the second conical surface is D, and the shortest distance between the first corresponding conical surface and the second corresponding conical surface is d, which satisfies the following conditions: 0.2 μm ≤ |D-d| ≤ 19.8 μm; When the ambient temperature is T1, the first conical surface and the first corresponding conical surface are in physical contact, the second conical surface and the second corresponding conical surface are arranged apart, and the first lens and the second lens are aligned; when the ambient temperature is T2, the second conical surface and the second corresponding conical surface are in physical contact, the first conical surface and the first corresponding conical surface are arranged apart, and the first lens and the second lens are aligned, which satisfies the following conditions: 5 K ≤ |T1-T2| ≤ 200 K.

22. The imaging lens according to claim 21, characterized in that, At least one of the first lens and the second lens further comprises an outer side surface, the outer side surface is away from the optical axis than the first conical surface, the first corresponding conical surface, the second conical surface, or the second corresponding conical surface, and a light shielding layer of the imaging lens covers at least a part of the outer side surface.

23. The imaging lens according to claim 21, characterized in that, An included angle between the first conical surface and the second conical surface on a cross section parallel to the optical axis is θ, which satisfies the following conditions: 10 degrees ≤ θ ≤ 90 degrees.

24. The imaging lens according to claim 21, characterized in that, The first lens further comprises an abutting surface, the abutting surface is substantially perpendicular to the optical axis, and the abutting surface is in physical contact with the second lens.

25. The imaging lens according to claim 21, characterized in that, One of the first lens and the second lens comprises at least one tapered surface, the at least one tapered surface is tapered from a side of the one of the first lens and the second lens away from the optical axis to a direction close to the optical axis.

26. The imaging lens according to claim 21, characterized in that, One of the first lens and the second lens is a reflective lens, the reflective lens sequentially comprises an entrance surface, at least one reflecting surface and an exit surface along an imaging light path, the imaging light path is turned in a mirror surface direction at the at least one reflecting surface; At least one of the entrance surface and the exit surface comprises an axisymmetric curved surface, the imaging light path passes through the axisymmetric curved surface, and the axisymmetric curved surface is coaxially arranged with the first conical surface in the optical axis direction.

27. The imaging lens according to claim 26, characterized in that, The reflective lens further comprises a reflecting surface element and an optical surface element, the reflecting surface element forms the at least one reflecting surface, and the optical surface element forms at least one of the entrance surface and the exit surface; The reflective lens further comprises a colloid, the colloid bonds the reflecting surface element and the optical surface element.

28. An image capturing device, comprising: Comprise: At least one imaging lens as claimed in claim 1, claim 13 and claim 21.

29. An electronic device, comprising: Comprise: At least one image capturing device as claimed in claim 28; and An electronic photosensitive element arranged at an imaging surface of the imaging lens.

Images