Imaging lens, camera module and electronic device

Abstract

An imaging lens, a camera module and an electronic device, the imaging lens including a plurality of lenses arranged in order along an optical axis, a plastic lens barrel, a frame element fixed to the plastic lens barrel, and a gap. The plurality of lenses comprise a glass lens and a first plastic lens, and the first plastic lens is arranged in the plastic lens barrel. The plastic lens barrel comprises a first inner side surface and a first outer side surface, and the first plastic lens entity is in contact with a first area of the first inner side surface. The frame element comprises a second inner side surface, the second inner side surface is in physical contact with a second area of the first outer side surface, and the gap is formed between the first outer side surface and the second inner side surface. The imaging lens further comprises at least one first annular structure arranged on the first inner side surface. Therefore, the lens deformation direction can be guided, and the mechanism strength can be maintained.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to an imaging lens and a camera module, and particularly to an imaging lens and a camera module 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 camera modules and imaging lenses loaded on portable electronic devices have also developed rapidly. However, as technology continues to advance, users have increasingly high requirements for the quality of imaging lenses. Therefore, developing an imaging lens that can guide the deformation direction of a lens and maintain the strength of a mechanism has become an important and urgent problem in the industry. SUMMARY

[0003] The present disclosure provides an imaging lens, a camera module, and an electronic device that can guide the deformation direction of a lens and maintain the strength of a mechanism through the arrangement of optical elements and optical mechanism components, thereby improving optical quality.

[0004] According to an embodiment of the present disclosure, an imaging lens is provided, which includes a plurality of lenses, a plastic lens barrel, a frame element, and a gap. The lenses are arranged in order along an optical axis, and the frame element is fixed to the plastic lens barrel. The lenses include a glass lens and a first plastic lens, the first plastic lens is arranged corresponding to the glass lens, and the first plastic lens is arranged in the plastic lens barrel. The plastic lens barrel includes a first inner surface and a first outer surface, the first inner surface surrounds the optical axis, the first plastic lens is in physical contact with a first region of the first inner surface, the first outer surface is arranged opposite to the first inner surface, and the first outer surface is farther away from the first plastic lens than the first inner surface. The frame element includes a second inner surface, which surrounds the optical axis and faces the first outer surface, and the second inner surface is in physical contact with a second region of the first outer surface. The gap is formed between the first outer surface and the second inner surface, extends in the direction of the optical axis from the second region, and the gap corresponds to the first region. The imaging lens further includes at least one first annular structure arranged on the first inner surface, the at least one first annular structure corresponds to the second region, and the at least one first annular structure surrounds the optical axis and extends in a direction away from the frame element.

[0005] The imaging lens according to the embodiment described in the preceding paragraph can further include a first annular element forming the at least one first annular structure, and the first annular element can be in physical contact with a third region of the first inner surface.

[0006] The imaging lens according to the embodiment described in the preceding paragraph, wherein the hardness of the first annular element can be greater than that of the plastic lens barrel.

[0007] The imaging lens according to the previous embodiment, wherein the first inner surface and the at least one first annular structure are integrally formed.

[0008] The imaging lens according to the previous embodiment, wherein the frame element comprises an extension structure extending towards the optical axis, and wherein one of the lenses is supported by the extension structure.

[0009] The imaging lens according to the previous embodiment, wherein the frame element has a rigidity greater than the plastic lens barrel.

[0010] The imaging lens according to the previous embodiment, wherein the second region does not overlap the first region in a direction perpendicular to the optical axis.

[0011] The imaging lens according to the previous embodiment, wherein, in a cross-section parallel to the optical axis, the first plastic lens defines a lens diameter D, and the plastic lens barrel has a barrel thickness T in the first region, and the following condition is satisfied: 0.018 ≤ T / D ≤ 0.6.

[0012] The imaging lens according to the previous embodiment, wherein, in a cross-section parallel to the optical axis, the first plastic lens defines a lens diameter D, and the plastic lens barrel has a barrel thickness T in the first region, and the following condition is satisfied: 0.02 ≤ T / D ≤ 0.22.

[0013] The imaging lens according to the previous embodiment, wherein, in a cross-section parallel to the optical axis, the plastic lens barrel has a barrel thickness T in the first region, and the following condition is satisfied: 0.22 mm ≤ T ≤ 3.0 mm.

[0014] The imaging lens according to the previous embodiment, wherein, in a cross-section parallel to the optical axis, the gap corresponds to a minimum width W of the first region, and the following condition is satisfied: 0.0012 mm ≤ W ≤ 0.24 mm.

[0015] The imaging lens according to the previous embodiment, wherein the at least one first annular structure is disposed in a third region of the first inner surface, and in a direction parallel to the optical axis, the third region overlaps the second region by a length O, and the plastic lens barrel has a length PBL, and the following condition is satisfied: 0.012 ≤ O / PBL ≤ 0.42.

[0016] The imaging lens according to the previous embodiment, wherein the at least one first annular structure is a plurality of first annular structures.

[0017] The imaging lens according to the previous embodiment, further comprising a fixing element for fixing the plastic lens barrel and the frame element, the fixing element being disposed on the frame element and being in physical contact with at least one of the lenses and the plastic lens barrel.

[0018] The imaging lens according to the preceding embodiment, wherein the lens further comprises a second plastic lens, and at least one first annular structure is disposed between the second plastic lens and the first plastic lens. The second plastic lens can be in physical contact with the first inner surface, and the second plastic lens can correspond to the gap.

[0019] The imaging lens according to the preceding embodiment, wherein the at least one first annular structure and the first plastic lens can be adjacently disposed.

[0020] The imaging lens according to the preceding embodiment, further comprising a second annular structure disposed on the first inner surface and corresponding to the gap, the second annular structure surrounds the optical axis and extends away from the gap. In a cross-sectional plane parallel to the optical axis, a width of the gap corresponding to the second annular structure can be narrower than a width of the gap corresponding to the first region. A minimum width WN of the gap corresponding to the second annular structure can satisfy the following condition: 0.004 mm ≤ WN ≤ 0.05 mm.

[0021] The imaging lens according to the preceding embodiment, wherein the minimum width WN of the gap corresponding to the second annular structure can satisfy the following condition: 0.005 mm ≤ WN ≤ 0.04 mm.

[0022] The imaging lens according to the preceding embodiment, further comprising a protruding structure disposed on the first outer surface of the plastic lens barrel and corresponding to the second annular structure, the protruding structure protrudes away from the second annular structure and can maintain a gap with the frame element.

[0023] The imaging lens according to the preceding embodiment, wherein the protruding structure can comprise a plurality of sub-protruding structures, and the sub-protruding structures are arranged at intervals.

[0024] A camera module according to an embodiment of the present disclosure comprises an imaging lens according to any of the preceding embodiments and a component carrier, wherein the frame element of the imaging lens is fixed to the component carrier.

[0025] An electronic device according to an embodiment of the present disclosure comprises a camera module according to any of the preceding embodiments.

[0026] An imaging lens is provided according to an embodiment of the present disclosure. The imaging lens includes a plurality of lenses, a plastic lens barrel, a frame element, and a gap. The lenses are arranged in sequence along an optical axis. The frame element is fixed to the plastic lens barrel. The lenses include a glass lens and a first plastic lens. The first plastic lens is disposed corresponding to the glass lens. The first plastic lens is disposed in the plastic lens barrel. The plastic lens barrel includes a first inner surface and a first outer surface. The first inner surface surrounds the optical axis. The first plastic lens physically contacts a first region of the first inner surface. The first outer surface is disposed opposite to the first inner surface. The first plastic lens is farther from the first outer surface than from the first inner surface. The frame element includes a second inner surface. The second inner surface surrounds the optical axis and faces the first outer surface. The second inner surface physically contacts a second region of the first outer surface. The gap is formed between the first outer surface and the second inner surface. The gap extends in a direction along the optical axis from the second region. The gap corresponds to the first region. The imaging lens further includes at least one annular structure disposed on the first inner surface. The at least one annular structure corresponds to the gap. The at least one annular structure surrounds the optical axis and extends in a direction away from the gap. In a cross section parallel to the optical axis, a width of the gap corresponding to the at least one annular structure is narrower than a width of the gap corresponding to the first region. A minimum width WN of the gap corresponding to the at least one annular structure satisfies the following condition: 0.004 mm ≤ WN ≤ 0.05 mm.

[0027] The imaging lens according to the embodiment of the preceding paragraph can further include a protruding structure disposed on the first outer surface of the plastic lens barrel and corresponding to the at least one annular structure. The protruding structure protrudes in a direction away from the at least one annular structure and can maintain the gap with the frame element.

[0028] The imaging lens according to the embodiment of the preceding paragraph, wherein the protruding structure can include a plurality of sub-protruding structures. The sub-protruding structures are arranged apart from each other.

[0029] The imaging lens according to the embodiment of the preceding paragraph, wherein in the cross section parallel to the optical axis, a minimum width W of the gap corresponding to the first region satisfies the following condition: 0.0012 mm ≤ W ≤ 0.24 mm.

[0030] The imaging lens according to the embodiment of the preceding paragraph, wherein in the cross section parallel to the optical axis, the second region and the first region can not overlap.

[0031] The imaging lens according to the embodiment of the preceding paragraph, wherein in the cross section parallel to the optical axis, the first plastic lens defines a lens diameter D. A barrel thickness T of the plastic lens barrel at the first region satisfies the following condition: 0.018 ≤ T / D ≤ 0.6.

[0032] The imaging lens according to the embodiment of the preceding paragraph, wherein the number of the at least one annular structure can be a plurality.

[0033] The imaging lens according to the preceding embodiment, wherein the lens further comprises a second plastic lens, and at least one annular structure is disposed between the first plastic lens and the second plastic lens. The second plastic lens can be in physical contact with the first inner surface, and the second plastic lens can correspond to the gap.

[0034] The imaging lens according to the preceding embodiment, wherein the at least one annular structure is disposed adjacent to the first plastic lens. BRIEF DESCRIPTION OF DRAWINGS

[0035] FIG. 1A A schematic view of a camera module according to a first embodiment of the present disclosure is shown;

[0036] FIG. 1B An exploded view of the camera module according to the first embodiment is shown; FIG. 1A

[0037] FIG. 1C A sectional view of the camera module according to the first embodiment is shown; FIG. 1A

[0038] FIG. 1D A sectional view of an imaging lens according to the first embodiment of the present disclosure is shown;

[0039] FIG. 1E An enlarged view of region 1E of the camera module according to the first embodiment is shown; FIG. 1C

[0040] An enlarged view of region 1F of the camera module according to the first embodiment is shown; FIG. 1F FIG. 1C An enlarged view of region 1G according to the first embodiment is shown;

[0041] FIG. 1G FIG. 1F A schematic view of a camera module according to a second embodiment of the present disclosure is shown;

[0042] FIG. 2A An exploded view of the camera module according to the second embodiment is shown;

[0043] FIG. 2B A sectional view of the camera module according to the second embodiment is shown; FIG. 2A

[0044] FIG. 2C A sectional view of an imaging lens according to the second embodiment of the present disclosure is shown; FIG. 2A

[0045] An enlarged view of region 1E of the camera module according to the second embodiment is shown; FIG. 2D

[0046] An enlarged view of region 1F of the camera module according to the second embodiment is shown; FIG. 2E FIG. 2C ​​​​​​Enlarged view of area 2E of the camera module in the second embodiment;

[0047] FIG. 2F Schematic diagram illustrating a camera module in accordance with a third embodiment of the present disclosure; FIG. 2C Enlarged view of area 2F of the camera module in the second embodiment;

[0048] FIG. 3A Schematic diagram illustrating a camera module in accordance with a third embodiment of the present disclosure;

[0049] FIG. 3B Schematic diagram illustrating a camera module in accordance with a third embodiment of the present disclosure; FIG. 3A Exploded view of the camera module in the third embodiment;

[0050] FIG. 3C Schematic diagram illustrating a camera module in accordance with a third embodiment of the present disclosure; FIG. 3A Cross-sectional view of the camera module in the third embodiment;

[0051] FIG. 3D Schematic diagram illustrating a camera module in accordance with a third embodiment of the present disclosure;

[0052] FIG. 3E Schematic diagram illustrating a camera module in accordance with a third embodiment of the present disclosure; FIG. 3C Enlarged view of area 3E of the camera module in the third embodiment;

[0053] FIG. 4A Schematic diagram illustrating a camera module in accordance with a fourth embodiment of the present disclosure;

[0054] FIG. 4B Schematic diagram illustrating a camera module in accordance with a fourth embodiment of the present disclosure; FIG. 4A Exploded view of the camera module in the fourth embodiment;

[0055] FIG. 4C Schematic diagram illustrating a camera module in accordance with a fourth embodiment of the present disclosure; FIG. 4A Cross-sectional view of the camera module in the fourth embodiment;

[0056] FIG. 4D Schematic diagram illustrating a camera module in accordance with a fourth embodiment of the present disclosure;

[0057] FIG. 4E Schematic diagram illustrating a camera module in accordance with a fourth embodiment of the present disclosure; FIG. 4C Enlarged view of area 4E of the camera module in the fourth embodiment;

[0058] FIG. 4F Schematic diagram illustrating a camera module in accordance with a fourth embodiment of the present disclosure; FIG. 4C Enlarged view of area 4F of the camera module in the fourth embodiment;

[0059] FIG. 5A Schematic diagram illustrating an electronic device in accordance with a fifth embodiment of the present disclosure;

[0060] FIG. 5B Schematic diagram illustrating an electronic device in accordance with a fifth embodiment of the present disclosure; FIG. 5A Another schematic diagram illustrating an electronic device in accordance with a fifth embodiment of the present disclosure;

[0061] FIG. 6 FIG. 6 shows a schematic view of an electronic device according to a sixth embodiment of the present disclosure applied to a drone; and

[0062] FIG. 7 FIG. 7 shows a schematic view of an electronic device according to a seventh embodiment of the present disclosure disposed in a car.

[0063]

Symbol Explanation

[0064] 10, 20, 30, 40: camera module

[0065] 100, 200, 300, 400: imaging lens

[0066] 111, 211, 311, 411: first lens

[0067] 112, 212, 312, 412: second lens

[0068] 113, 213, 313, 413: third lens

[0069] 114, 214, 314, 414: fourth lens

[0070] 115, 215, 315, 415: fifth lens

[0071] 116, 216, 316, 416: sixth lens

[0072] 117, 317, 417: seventh lens

[0073] 118: eighth lens

[0074] 120, 220, 320, 420: plastic lens barrel

[0075] 121, 2214, 2215, 321, 421: first inner surface

[0076] 122, 2224, 2225, 322, 422: first region

[0077] 123, 2234, 2235, 323, 423: first outer surface

[0078] 130, 230, 330, 430: frame element

[0079] 131: first frame element

[0080] 132: second frame element

[0081] 133: extension structure

[0082] 1341, 1342, 234, 334, 434: second inner side surface

[0083] 1351, 1352, 2354, 2355, 335, 435: second region

[0084] 1401, 1402, 2404, 2405, 340, 440: gap

[0085] 151, 2514, 351, 451: first ring element

[0086] 152, 252, 354, 452: second ring element

[0087] 153, 2534, 2535, 353, 453: third region

[0088] 155, 255, 455: third sub-region

[0089] 160, 260, 460: protruding structure

[0090] 161: sub-protruding structure

[0091] 170, 370: sealing element

[0092] 180, 380, 480: filter

[0093] 224: first plastic lens barrel

[0094] 225: second plastic lens barrel

[0095] 2251, 4201: first ring structure

[0096] 254: third ring element

[0097] 290: fixing element

[0098] 291: cover element

[0099] 438: second sub-region

[0100] 50: electronic device

[0101] 510: image capturing control interface

[0102] 511: front camera module

[0103] 512: prompt light

[0104] 513: TOF module

[0105] 514: image playback button

[0106] 515: image capturing module switching button

[0107] 516: integrated menu button

[0108] 517: wide-angle camera module

[0109] 518: zoom control button

[0110] 519: light-emitting element

[0111] 520: focus and capture button

[0112] 521: auxiliary focusing element

[0113] 522: electronic element board

[0114] 523: connector

[0115] 524: ultra-wide-angle camera module

[0116] 525: macro camera module

[0117] 526: telephoto camera module

[0118] 527: electronic element

[0119] 60: drone

[0120] 610: front camera module

[0121] 620: side camera module

[0122] 70: car

[0123] 710: front camera module

[0124] 720: side camera module

[0125] 730: rear camera module

[0126] C10, C20, C30, C40: element carrier

[0127] C11, C21, C31, C41: electronic element carrier

[0128] C12, C22, C32, C42: light-sensitive element

[0129] C13, C23, C43: base

[0130] D2, D3, D4, D6, D7, D8: lens diameter

[0131] G: gel

[0132] H: lens holding element

[0133] O1, O2: length of overlap

[0134] PBL1, PBL2: length of plastic lens barrel

[0135] T2, T3, T4, T6, T7, T8: thickness of lens barrel

[0136] W2, W3, W4, W6, W7, W8: minimum width

[0137] WN1, WN2, WN4, WN5, WN6: minimum width

[0138] X: optical axis DETAILED DESCRIPTION

[0139] One embodiment of the present disclosure provides an imaging lens, which includes a plurality of lenses, a plastic lens barrel, a frame element, and a gap. The lenses are arranged in sequence along an optical axis, and the frame element is fixed to the plastic lens barrel. The lenses include a glass lens and a first plastic lens. The first plastic lens is disposed corresponding to the glass lens, and the first plastic lens is disposed in the plastic lens barrel. The plastic lens barrel includes a first inner surface surrounding the optical axis and a first outer surface disposed opposite to the first inner surface and farther away from the first plastic lens than the first inner surface. The first plastic lens is in physical contact with a first region of the first inner surface. The frame element includes a second inner surface surrounding the optical axis and facing the first outer surface. The second inner surface is in physical contact with a second region of the first outer surface. The gap is formed between the first outer surface and the second inner surface, extends in the direction of the optical axis from the second region, and corresponds to the first region. The imaging lens further includes at least one first annular structure disposed on the first inner surface. The first annular structure corresponds to the second region and extends in a direction away from the frame element while surrounding the optical axis. The imaging lens includes the glass lens and the first plastic lens, thereby improving optical quality and reducing the influence of the environment on the imaging lens. The first region of the first plastic lens in physical contact with the plastic lens barrel corresponds to the gap, thereby providing a margin for the expansion of the first plastic lens in the direction perpendicular to the optical axis and guiding the deformation direction of the first plastic lens. In addition, the first annular structure corresponds to the second region, thereby improving the mechanical strength of the second region and reducing the influence of the environment on the size of the imaging lens.

[0140] Specifically, the frame element can be a sleeve, a frame, a base, or a lens maintaining element, without being limited thereto. Furthermore, the fixing manner of the frame element to the plastic lens barrel can be screw fitting, glue dispensing, mechanism fitting, or simultaneous use of multiple methods, without being limited thereto.

[0141] The imaging lens can further include a first annular element forming the first annular structure. The first annular element can be in physical contact with a third region of the first inner surface. In this way, the assembly degree of freedom can be improved.

[0142] The first annular element can have a rigidity greater than the plastic lens barrel. In this way, the anti-deformation capability of the plastic lens barrel in the axial direction can be further improved, and the impact resistance of the imaging lens can be improved. Specifically, the first annular element can be a metal element, a ceramic element, or a plastic element with added glass fibers, but is not limited thereto.

[0143] The first inner surface and the first annular structure can be integrally formed. In this way, the number of elements can be reduced, and the equipment process can be simplified.

[0144] The frame element can include an extension structure extending toward the optical axis, and one of the lenses can be supported by the extension structure. In this way, the frame element further has the function of maintaining the lenses, and the number of elements can be reduced.

[0145] The frame element can have a rigidity greater than the plastic lens barrel. In this way, the size of the plastic lens barrel can be maintained when the environment changes, and the service life of the imaging lens can be improved. Specifically, the frame element can be a metal element, a ceramic element, or a plastic element with added glass fibers, but is not limited thereto.

[0146] In the direction perpendicular to the optical axis, the second region and the first region can not overlap. In this way, the deformation margin of the first plastic lens in the direction perpendicular to the optical axis is ensured.

[0147] In a cross section parallel to the optical axis, the first plastic lens defines a lens diameter D, and the lens barrel has a barrel thickness T in the first region, which satisfies the following condition: 0.018≤T / D≤0.6. In this way, the direction of lens deformation can be guided, and the lens spacing can be maintained. In addition, in the cross section parallel to the optical axis, the first plastic lens defines a lens diameter D, and the lens barrel has a barrel thickness T in the first region, which satisfies the following condition: 0.02≤T / D≤0.22.

[0148] In the cross section parallel to the optical axis, the lens barrel has a barrel thickness T in the first region, which satisfies the following condition: 0.22mm≤T≤3.0mm. In this way, sufficient support can be provided, and the plastic lens can be prevented from being squeezed during deformation.

[0149] In the cross section parallel to the optical axis, the gap corresponds to the minimum width W of the first region, which satisfies the following condition: 0.0012mm≤W≤0.24mm. In this way, the mechanism stability is improved to improve the yield rate under the condition of having sufficient deformation margin.

[0150] The first annular structure is disposed on a third region of the first inner side surface, and in a direction parallel to the optical axis, the third region overlaps the second region by a length O, and the length of the plastic lens barrel is PBL, which can satisfy the following condition: 0.012≤O / PBL≤0.42. In this way, the frame element can be prevented from falling off when the plastic element is deformed, thereby improving the service life of the lens.

[0151] The number of the first annular structures can be multiple. In this way, the spacing between the lenses can be further maintained to ensure the optical quality.

[0152] The imaging lens can further include a fixing element for fixing the plastic lens barrel and the frame element, the fixing element being disposed on the frame element and being in physical contact with at least one of the lens and the plastic lens barrel. In this way, the stability of the fixing between the frame element and the plastic lens barrel can be improved. Specifically, the fixing element can be a cover element, an adhesive, or a combination of multiple elements, or a fixing gel generated by melting part of the elements by temperature, chemicals, etc., but is not limited thereto.

[0153] The lens can further include a second plastic lens, and the first annular structure is disposed between the second plastic lens and the first plastic lens. The second plastic lens can be in physical contact with the first inner side surface, and the second plastic lens can correspond to the gap. In this way, the first annular structure has the function of maintaining the spacing between the lenses, and the optical performance can be further improved.

[0154] The first annular structure and the first plastic lens can be disposed adjacent to each other. In this way, the cooperation relationship between the first plastic lens and the first annular structure can be further maintained, thereby improving the assembly efficiency.

[0155] The imaging lens can further include a second annular structure disposed on the first inner side surface and corresponding to the gap in a direction perpendicular to the optical axis, the second annular structure surrounding the optical axis and extending away from the gap. In a cross section parallel to the optical axis, the width of the gap corresponding to the second annular structure can be narrower than the width of the gap corresponding to the first region, and the minimum width of the gap corresponding to the second annular structure is WN, which can satisfy the following condition: 0.004mm≤WN≤0.05mm. The narrower width of the gap corresponding to the second annular structure can improve the mechanical strength of the imaging lens while maintaining the lens expansion margin, thereby improving the stability of the overall optical system. In addition, the minimum width of the gap corresponding to the second annular structure is WN, which can satisfy the following condition: 0.005mm≤WN≤0.04mm.

[0156] The imaging lens can further include a protruding structure disposed on the first outer side surface of the plastic lens barrel and corresponding to the second annular structure, the protruding structure protruding away from the second annular structure and maintaining a gap with the frame element. In this way, the mechanical strength of the third region can be improved to control the deformation of the plastic lens barrel.

[0157] The protruding structure can include a plurality of sub-protruding structures arranged at intervals from each other. The flow of the gap between the two sides of the protruding structure can be maintained after deformation, whereby the deformation margin of the first plastic lens can be further maintained.

[0158] The technical features of the imaging lens module of the present disclosure can be combined to achieve the corresponding effects.

[0159] The present disclosure provides a camera module including the aforementioned imaging lens and an element carrier, wherein the frame element of the imaging lens is fixed to the element carrier. Thereby, the deformation of the plastic barrel during assembly can be avoided to improve the assembly yield. Specifically, the element carrier can further have the functionality of driving the imaging lens to achieve autofocus and optical image stabilization, but not limited thereto.

[0160] The present disclosure provides an electronic device including the aforementioned camera module.

[0161] One embodiment of the present disclosure provides an imaging lens, which includes a plurality of lenses, a plastic lens barrel, a frame element, and a gap. The lenses are arranged in sequence along an optical axis, and the frame element is fixed to the plastic lens barrel. The lenses include a glass lens and a first plastic lens, the first plastic lens is arranged corresponding to the glass lens, and the first plastic lens is arranged in the plastic lens barrel. The plastic lens barrel includes a first inner surface surrounding the optical axis, a first region of the first inner surface in physical contact with the first plastic lens, and a first outer surface opposite to the first inner surface and farther from the first plastic lens than the first inner surface. The frame element includes a second inner surface surrounding the optical axis and facing the first outer surface, and a second region of the first outer surface in physical contact with the second inner surface. The gap is formed between the first outer surface and the second inner surface, extends along the direction of the optical axis from the second region, and corresponds to the first region. The imaging lens further includes at least one annular structure arranged on the first inner surface, the at least one annular structure corresponding to the gap, the at least one annular structure surrounding the optical axis and extending away from the gap. In a cross section parallel to the optical axis, the width of the gap corresponding to the at least one annular structure is smaller than the width of the gap corresponding to the first region, and the minimum width WN of the gap corresponding to the at least one annular structure satisfies the following condition: 0.004 mm ≤ WN ≤ 0.05 mm. In this way, the imaging lens includes both glass lenses and plastic lenses, which can improve optical quality and reduce the influence of the environment on the imaging lens. In addition, the first region of the first plastic lens in physical contact with the plastic lens barrel corresponds to the gap, thereby providing a margin for the expansion of the first plastic lens in the direction perpendicular to the optical axis to control the deformation of the first plastic lens. Furthermore, the width of the gap corresponding to the annular structure is smaller than the width of the gap corresponding to the first region, so that when the plastic lens barrel is pressed by the frame element, the plastic lens is not affected, thereby maintaining the optical quality.

[0162] Specifically, the frame element can be a sleeve, a frame, a base, a lens maintaining element, without limitation.

[0163] The imaging lens can further include a protruding structure arranged on the first outer surface of the plastic lens barrel and corresponding to the at least one annular structure, the protruding structure protruding away from the at least one annular structure and maintaining a gap with the frame element. In this way, the mechanical strength can be improved to control the deformation of the plastic lens barrel.

[0164] The protruding structure can include a plurality of sub-protruding structures arranged at intervals. The flow of the gap on both sides of the protruding structure can be maintained after deformation, thereby further maintaining the deformation margin of the first plastic lens.

[0165] In a cross section parallel to the optical axis, the minimum width of the gap corresponding to the first region is W, which can satisfy the following condition: 0.0012mm≤W≤0.24mm. In this way, the stability of the mechanism is improved to improve the yield under the condition of sufficient deformation margin.

[0166] In a cross section parallel to the optical axis, the second region can not overlap the first region. In this way, the deformation margin of the first plastic lens in the direction perpendicular to the optical axis is ensured.

[0167] In a cross section parallel to the optical axis, the first plastic lens defines a lens diameter D, and a barrel thickness T of the plastic barrel at the first region, which can satisfy the following condition: 0.018≤T / D≤0.6. In this way, the direction of lens deformation can be guided while maintaining the lens spacing.

[0168] The number of at least one annular structure can be multiple. In this way, the spacing of the lenses can be further maintained to ensure optical quality.

[0169] The lens can further include a second plastic lens, and the at least one annular structure is arranged between the first plastic lens and the second plastic lens. The second plastic lens can be in physical contact with the first inner side surface, and the second plastic lens can correspond to the gap. In this way, the at least one annular structure has the function of maintaining the spacing of the lenses, which can further improve the optical performance.

[0170] The at least one annular structure can be arranged adjacent to the first plastic lens. In this way, the cooperation relationship between the first plastic lens and the annular structure can be further maintained to improve the assembly efficiency.

[0171] The technical features of the imaging lens module of the present disclosure described above can be combined to achieve the corresponding effects.

[0172] According to the above-mentioned embodiments, specific embodiments are proposed below and are described in detail with reference to the accompanying drawings.

[0173] <First Embodiment>

[0174] Please refer to FIG. 1A , which shows a schematic diagram of a camera module 10 according to the first embodiment of the present disclosure. As shown in FIG. 1A , the camera module 10 includes an imaging lens 100 and a component carrier C10.

[0175] Please refer to FIG. 1B , FIG. 1C and FIG. 1D , wherein FIG. 1B shows an exploded view of the camera module 10 according to the FIG. 1A first embodiment, FIG. 1C shows a cross-sectional view of the camera module 10 according to the FIG. 1A first embodiment, FIG. 1DA cross-sectional view of an imaging lens 100 according to a first embodiment of the present disclosure is shown. The imaging lens 100 includes a plurality of lenses, a plastic lens barrel 120, a frame element 130, and a first ring structure (not shown) formed by a first ring element 151. FIG. 1B to FIG. 1D As shown in FIG. 1, the imaging lens 100 includes a plurality of lenses, a plastic lens barrel 120, a frame element 130, and a first ring structure (not shown) formed by a first ring element 151. The plurality of lenses are sequentially arranged along an optical axis X, including a first lens 111, a second lens 112, a third lens 113, a fourth lens 114, a fifth lens 115, a sixth lens 116, a seventh lens 117, and an eighth lens 118. The frame element 130 is fixed to the plastic lens barrel 120, and the frame element 130 can include a first frame element 131 and a second frame element 132. Further, the imaging lens 100 can further include a second ring structure (not shown) formed by a second ring element 152. In addition, the first frame element 131 and the second frame element 132 can have a hardness greater than that of the plastic lens barrel 120, and the first ring element 151 can have a hardness greater than that of the plastic lens barrel 120.

[0176] In detail, the element carrier C10 can include an electronic element carrier C11, a photosensitive element C12, and a base C13, and the second frame element 132 of the imaging lens 100 is fixed to the element carrier C10.

[0177] In addition, the imaging lens 100 can further include a protruding structure 160 disposed on the plastic lens barrel 120, wherein the protruding structure 160 can include a plurality of sub-protruding structures 161 arranged at intervals.

[0178] In detail, the first lens 111, the third lens 113, the fourth lens 114, and the fifth lens 115 are glass lenses, and the second lens 112, the sixth lens 116, the seventh lens 117, and the eighth lens 118 are plastic lenses. The plastic lenses and the glass lenses are correspondingly arranged, i.e., the first lens 111 and the third lens 113 are correspondingly arranged with the second lens 112, the fifth lens 115 is correspondingly arranged with the sixth lens 116, and the plastic lenses (i.e., the second lens 112, the sixth lens 116, the seventh lens 117, and the eighth lens 118) are disposed on the plastic lens barrel 120.

[0179] Further, the frame element 130 can include two extension structures 133, one of which is disposed on the first frame element 131, and the other of which is disposed on the second frame element 132. The two extension structures 133 extend towards the optical axis X, and at least one of the lenses of the imaging lens 100 can be supported by one of the extension structures 133. In detail, the extension structure 133 of the first frame element 131 can be used to position the first lens 111, and the extension structure 133 of the second frame element 132 can be used to position the eighth lens 118.

[0180] In addition, the camera module 10 can further include a sealing element 170 disposed between the first lens 111 and the plastic lens barrel 120. Furthermore, the camera module 10 can further include a filter 180 disposed on the image side of the imaging lens 100.

[0181] Referring to FIG. 1C , FIG. 1E to FIG. 1G wherein FIG. 1E is shown according to FIG. 1C a zoomed-in view of a region 1E of the camera module 10 in the first embodiment, FIG. 1F is shown according to FIG. 1C a zoomed-in view of a region 1F of the camera module 10 in the first embodiment, FIG. 1G is shown according to FIG. 1F a zoomed-in view of a region 1G of the camera module 10 in the first embodiment. As can be seen from FIG. 1C , FIG. 1E and FIG. 1F , the plastic lens barrel 120 includes a first inner side surface 121 surrounding the optical axis X, and a first outer side surface 123 opposite to the first inner side surface 121 and farther away from the plastic lens than the first inner side surface 121, the second lens 112, the seventh lens 117 and the eighth lens 118 of the plastic lens being in physical contact with a first region 122 of the first inner side surface 121 corresponding thereto, respectively.

[0182] The first frame element 131 and the second frame element 132 of the frame element 130 each include a second inner side surface 1341, 1342 surrounding the optical axis X and facing the first outer side surface 123, respectively, the second inner side surface 1341, 1342 being in physical contact with a second region 1351, 1352 of the first outer side surface 123 corresponding thereto, respectively.

[0183] The imaging lens 100 includes a gap 1401 formed between the first outer side surface 123 and the second inner side surface 1341, the gap 1401 extending along the direction of the optical axis X from the second region 1351 corresponding thereto, and the gap 1401 corresponding to the first region 122 corresponding thereto, and a gap 1402 formed between the first outer side surface 123 and the second inner side surface 1342, the gap 1402 extending along the direction of the optical axis X from the second region 1352 corresponding thereto, and the gap 1402 corresponding to the first region 122 corresponding thereto. Further, in the direction perpendicular to the optical axis X, the second region 1351 can not overlap with the first region 122, and the second region 1352 can not overlap with the first region 122.

[0184] The imaging lens 100 can further comprise two first annular elements 151 forming a first annular structure, the first annular structure is disposed on the first inner side surface 121 and corresponds to the second regions 1351, 1352, and the first annular structure surrounds the optical axis X and extends away from the first frame element 131 and the second frame element 132, respectively.

[0185] The two first annular elements 151 can be in physical contact with the third regions 153 of the first inner side surface 121, respectively, wherein the first inner side surface 121 and the first annular structure formed by the two first annular elements 151 can be integrally formed. In addition, the first annular structure is disposed on the third regions 153 of the first inner side surface 121. Further, the number of the first annular structures can be multiple, and at least one of the first annular structures and the plastic lens can be disposed adjacent to each other.

[0186] The imaging lens 100 can further comprise a second annular element 152 forming a second annular structure. The second annular structure is disposed on the first inner side surface 121 and corresponds to the gap 1402, and the second annular structure surrounds the optical axis X and extends away from the gap 1402, wherein in the cross section parallel to the optical axis X, the width of the second annular structure corresponding to the gap 1402 can be narrower than the width of the gap 1402 corresponding to the first region 122.

[0187] Specifically, the second annular structure is in physical contact with a third region 155 of the first inner side surface 121, and the difference between the third region 153 and the third region 155 is that the third region 153 corresponds to the second region 1352, and the third region 155 corresponds to the gap 1402.

[0188] From FIG. 1E and FIG. 1F It can be known that the second inner side surface 1341, 1342 can have a screw thread, so that the second region 1351 of the plastic lens barrel 120 is in physical contact with the first frame element 131, and the second region 1352 is in physical contact with the second frame element 132. Specifically, the imaging lens 100 can further comprise a fixing element (not shown in the figure), which can be two colloids G, respectively disposed on the second regions 1351, 1352, for positioning the plastic lens barrel 120 and the first frame element 131, and for positioning the plastic lens barrel 120 and the second frame element 132.

[0189] In combination with reference to FIG. 1G It can be known that the protruding structure 160 is disposed on the first outer side surface 123 of the plastic lens barrel 120 and corresponds to the second annular structure, the protruding structure 160 protrudes away from the second annular structure, and the second frame element 132 can maintain the gap 1402.

[0190] Specifically, the materials of the first frame element 131 and the second frame element 132 can be aluminum alloy, the material of the plastic lens barrel 120 can be plastic, and the materials of the first annular element 151 and the second annular element 152 can be plastic containing glass fiber.

[0191] Depend on FIG. 1D to FIG. 1G As can be seen, on the cross section parallel to the optical axis X, the second lens 112 defines a lens diameter of D2, the seventh lens 117 defines a lens diameter of D7, and the eighth lens 118 defines a lens diameter of D8. The plastic lens barrel 120 corresponds to the second lens 112 in the first region 122 with a barrel thickness of T2, the seventh lens 117 in the first region 122 with a barrel thickness of T7, and the eighth lens 118 in the first region 122 with a barrel thickness of T8. The gap 1401 corresponds to the minimum width of the first region 122 at the second lens 112 with a width of W2, the gap 1402 corresponds to the minimum width of the sixth lens 116 with a width of W6, the gap 1402 corresponds to the minimum width of the first region 122 at the eighth lens 118 with a width of W8, and the gap 1402 corresponds to the minimum width of the second annular structure with a width of WN4. Furthermore, in the direction parallel to the optical axis X, the length of overlap between the third region 153 and the second region 1351 between the second lens 112 and the third lens 113 is O1, the length of overlap between the third region 153 and the second region 1352 between the sixth lens 116 and the fifth lens 115 is O2, and the length of the plastic lens barrel 120 is PBL1. The parameters satisfy the conditions in Table 1 below.

[0192]

[0193]

[0194] It must be noted that T2, T7, and T8 defined in the aforementioned first embodiment can be regarded as T as defined in this disclosure; D2, D7, and D8 defined in the aforementioned first embodiment can be regarded as D as defined in this disclosure; W2, W6, and W8 defined in the aforementioned first embodiment can be regarded as W as defined in this disclosure; O1 and O2 defined in the aforementioned first embodiment can be regarded as O as defined in this disclosure; PBL1 defined in the aforementioned first embodiment can be regarded as PBL as defined in this disclosure; and WN4 defined in the aforementioned first embodiment can be regarded as WN as defined in this disclosure.

[0195] <Second Implementation>

[0196] Please refer to FIG. 2A The diagram illustrates the camera module 20 according to the second embodiment of this disclosure. FIG. 2AIt can be seen that the camera module 20 includes an imaging lens 200 and a component carrier C20.

[0197] Please refer to FIG. 2B , FIG. 2C and FIG. 2D ,in FIG. 2B Drawing according to FIG. 2A An exploded view of the camera module 20 in the second embodiment. FIG. 2C Drawing according to FIG. 2A A cross-sectional view of the camera module 20 in the second embodiment. FIG. 2D A cross-sectional view of the imaging lens 200 according to the second embodiment of this disclosure is shown. FIG. 2B to FIG. 2D As can be seen, the imaging lens 200 includes multiple lenses, a plastic lens barrel 220, a frame element 230, and a first annular structure (not shown in the figure). The multiple lenses are a first lens 211, a second lens 212, a third lens 213, a fourth lens 214, a fifth lens 215, and a sixth lens 216 arranged sequentially along an optical axis X. The lenses of the imaging lens 200 may include a first plastic lens and a second plastic lens, and the first annular structure may be disposed between the second plastic lens and the first plastic lens. The plastic lens barrel 220 may include a first plastic lens barrel 224 and a second plastic lens barrel 225. The imaging lens 200 may also include a first annular element 2514, which forms the first annular structure. Furthermore, the imaging lens 200 may also include a second annular structure (not shown in the figure), wherein a second annular element 252 forms the second annular structure. In addition, the hardness of the frame element 230 can be greater than that of the plastic lens barrel 220, and the hardness of the first annular element 2514 can be greater than that of the plastic lens barrel 120.

[0198] In detail, the component carrier C20 may include an electronic component carrier C21, a photosensitive element C22, and a base C23, and the frame element 230 of the imaging lens 200 is fixed to the component carrier C20.

[0199] In addition, the imaging lens 200 may also include a protruding structure 260 disposed on the first plastic lens barrel 224.

[0200] Specifically, the first lens 211 is a glass lens, and the second lens 212, third lens 213, fourth lens 214, fifth lens 215, and sixth lens 216 are plastic lenses. The plastic lenses are arranged correspondingly to the glass lenses, that is, the first lens 211 and the second lens 212 are arranged correspondingly, and the plastic lenses (i.e., the second lens 212, third lens 213, fourth lens 214, fifth lens 215, and sixth lens 216) are disposed within the plastic lens barrel 220. Furthermore, the imaging lens 200 may also include a third annular element 254, which is located between the first lens 211 and the second lens 212, for positioning the first lens 211 and the second lens 212.

[0201] Further, the imaging lens 200 can further comprise a fixing element 290, which fixes the plastic lens barrel 220 and the frame element 230. The fixing element 290 is disposed on the frame element 230 and can be in physical contact with at least one of the lens and the plastic lens barrel 220. In addition, the fixing element 290 can comprise a cover element 291 and a glue G, which can be used to position the first lens 211.

[0202] Please refer to FIG. 2C , FIG. 2E and FIG. 2F , wherein FIG. 2E illustrates an enlarged view of the region 2E of the camera module 20 according to FIG. 2C the second embodiment, FIG. 2F illustrates an enlarged view of the region 2F of the camera module 20 according to FIG. 2C the second embodiment. As can be seen from FIG. 2C , FIG. 2E and FIG. 2F , the first plastic lens barrel 224 comprises a first inner side surface 2214 and a first outer side surface 2234, and the second plastic lens barrel 225 comprises a first inner side surface 2215 and a first outer side surface 2235. The first inner side surface 2214 of the first plastic lens barrel 224 surrounds the optical axis X, and the first inner side surface 2215 of the second plastic lens barrel 225 surrounds the optical axis X. In addition, the second lens 212, the third lens 213, the fourth lens 214 and the sixth lens 216 of the plastic lens are respectively in physical contact with the first region 2224 of the first inner side surface 2214 and the first region 2225 of the first inner side surface 2215. The first outer side surface 2234 is disposed opposite to the first inner side surface 2214 and is further away from the plastic lens in physical contact with the first inner side surface 2214 than the corresponding first inner side surface 2214. The first outer side surface 2235 is disposed opposite to the first inner side surface 2215 and is further away from the plastic lens in physical contact with the first inner side surface 2215 than the corresponding first inner side surface 2215. The frame element 230 comprises a second inner side surface 234, which surrounds the optical axis X and faces the first outer side surfaces 2234, 2235. The second inner side surface 234 is in physical contact with one of the second regions 2354, 2355 of the first outer side surfaces 2234, 2235. Specifically, the frame element 230 is in physical contact with the second region 2354 of the first plastic lens barrel 224 and the second region 2355 of the second plastic lens barrel 225, respectively. The first plastic lens barrel 224 and the second plastic lens barrel 225 are respectively dimensionally fitted with the frame element 230 to achieve physical contact.

[0203] The imaging lens 200 comprises a gap 2404 formed between the first outer surface 2234 and the second inner surface 234, and extending along the direction of the optical axis X from the second region 2354, and the gap 2404 has a correspondence with the first region 2224 corresponding thereto, and a gap 2405 formed between the first outer surface 2235 and the second inner surface 234, and extending along the direction of the optical axis X from the second region 2355, and in the direction perpendicular to the optical axis X, and the gap 2405 has an overlap with the first region 2225 corresponding thereto. Further, in the direction perpendicular to the optical axis X, the second region 2354 can not overlap with the first region 2224, and the second region 2355 can not overlap with the first region 2225.

[0204] Further, the second lens 212, the third lens 213, and the fourth lens 214 of the plastic lens correspond to the gap 2404, and the sixth lens 216 of the plastic lens corresponds to the gap 2405.

[0205] The imaging lens 200 can further comprise a first annular element 2514 forming a first annular structure, the first annular structure being disposed on the first inner surface 2214, 2215, and the first annular structure having an overlap with the second region 2354, 2355, and the first annular structure extending around the optical axis X and in a direction away from the frame element 230.

[0206] Further, the first annular structure formed by the first annular element 2514 can be in physical contact with a third region 2534 of the first inner surface 2214, and the first inner surface 2214 and the first annular structure can be integrally formed. Further, the first annular structure is disposed on the third region 2534 of the first inner surface 2214. Further, the first annular structure and at least one of the plastic lenses can be disposed adjacently.

[0207] The imaging lens 200 can further comprise a second annular element 252 forming a second annular structure. The second annular structure formed by the second annular element 252 is disposed on the first inner surface 2214, and has a correspondence with a gap 2404, and the second annular structure extends around the optical axis X and in a direction away from the gap 2404, wherein, in a cross section parallel to the optical axis X, a width of the gap 2404 corresponding to the second annular structure can be narrower than a width of the gap 2404 corresponding to the first region 2224.

[0208] In particular, the second annular structure is in physical contact with a third region 255 of the first inner surface 2214.

[0209] By FIG. 2C , FIG. 2E and FIG. 2FIt is known that the second inner side surface 234 can have a screw thread, so that the second region 2354 of the first plastic lens barrel 224 is in physical contact with the frame element 230, and the second region 2355 of the second plastic lens barrel 225 is in physical contact with the frame element 230. In addition, the imaging lens 200 can further include two spacers G, one of which is arranged on the first inner side surface 2215 to position the fifth lens 215 and the sixth lens 216, and the other of which is arranged between the first outer side surface 2235 and the second inner side surface 234 to position the second plastic lens barrel 225 and the frame element 230.

[0210] By FIG. 2E It is known that the protruding structure 260 is arranged on the first outer side surface 2234 of the first plastic lens barrel 224 and corresponds to the second annular structure formed by the second annular element 252, and the protruding structure 260 protrudes away from the second annular structure and can maintain the gap 2404 with the frame element 230.

[0211] In addition, by FIG. 2F It is known that the surface of the second plastic lens barrel 225 facing the optical axis X (i.e., the first inner side surface 2215) can have another first annular structure 2251, which surrounds the optical axis X and extends away from the frame element 230, and is used to position the sixth lens 216. In addition, the first annular structure 2251 is arranged on the third region 2535 of the first inner side surface 2215.

[0212] Specifically, the material of the frame element 230, the material of the fixing element 290, the material of the first annular element 2514, and the material of the second annular element 252 can be copper alloy, and the material of the first plastic lens barrel 224 and the material of the second plastic lens barrel 225 can be plastic.

[0213] By FIG. 2D to FIG. 2FIt is known that, in the cross section parallel to the optical axis X, the second lens 212 defines a lens diameter D2, the third lens 213 defines a lens diameter D3, the fourth lens 214 defines a lens diameter D4, the sixth lens 216 defines a lens diameter D6, the first plastic lens barrel 224 has a barrel thickness T2 corresponding to the second lens 212 in the first region 2224, the first plastic lens barrel 224 has a barrel thickness T3 corresponding to the third lens 213 in the first region 2224, the first plastic lens barrel 224 has a barrel thickness T4 corresponding to the fourth lens 214 in the first region 2224, the second plastic lens barrel 225 has a barrel thickness T6 corresponding to the sixth lens 216 in the first region 2225, the gap 2404 has a minimum width W2 corresponding to the first region 2224 at the second lens 212, the gap 2404 has a minimum width W3 corresponding to the first region 2224 at the third lens 213, the gap 2404 has a minimum width W4 corresponding to the first region 2224 at the fourth lens 214, the gap 2405 has a minimum width W6 corresponding to the first region 2225 at the sixth lens 216, and the gap 2404 has a minimum width WN4 corresponding to the second annular structure. Furthermore, in the direction parallel to the optical axis X, the third region 2534 between the second lens 212 and the third lens 213 overlaps the second region 2354 by a length O1, the third region 2535 adjacent to the sixth lens 216 overlaps the second region 2355 by a length O2, the length of the first plastic lens barrel 224 is PBL1, and the length of the second plastic lens barrel 225 is PBL2. The parameters satisfy the following Table 2 conditions.

[0214]

[0215]

[0216] It must be noted that T2, T3, T4, T6 defined in the foregoing second embodiment can be regarded as T defined in the present disclosure, respectively; D2, D3, D4, D6 defined in the foregoing second embodiment can be regarded as D defined in the present disclosure, respectively; W2, W3, W4, W6 defined in the foregoing second embodiment can be regarded as W defined in the present disclosure, respectively; O1, O2 defined in the foregoing second embodiment can be regarded as O defined in the present disclosure, respectively; PBL1, PBL2 defined in the foregoing second embodiment can be regarded as PBL defined in the present disclosure, respectively; and WN4 defined in the foregoing second embodiment can be regarded as WN defined in the present disclosure.

[0217] <Third Embodiment>

[0218] Please refer to FIG. 3A , which shows a schematic diagram of the camera module 30 according to the third embodiment of the present disclosure. As shown in FIG. 3AIt can be seen that the camera module 30 includes an imaging lens 300 and a component carrier C30.

[0219] Please refer to FIG. 3B , FIG. 3C and FIG. 3D ,in FIG. 3B Drawing according to FIG. 3A An exploded view of the camera module 30 in the third embodiment. FIG. 3C Drawing according to FIG. 3A A cross-sectional view of the camera module 30 in the third embodiment. FIG. 3D A cross-sectional view of the imaging lens 300 according to the third embodiment of this disclosure is shown. FIG. 3B to FIG. 3D As can be seen, the imaging lens 300 includes multiple lenses, a plastic lens barrel 320, a frame element 330, and an annular structure (not shown in the figure), wherein a first annular element 351 forms the first annular structure. The multiple lenses are arranged sequentially along an optical axis X: a first lens 311, a second lens 312, a third lens 313, a fourth lens 314, a fifth lens 315, a sixth lens 316, and a seventh lens 317. The frame element 330 is fixed to the plastic lens barrel 320. Furthermore, the rigidity of the frame element 330 can be greater than that of the plastic lens barrel 320, and the rigidity of the first annular element 351 can be greater than that of the plastic lens barrel 320.

[0220] In detail, the component carrier C30 may include an electronic component carrier C31 and a photosensitive element C32, and the frame element 330 of the imaging lens 300 is fixed to the component carrier C30.

[0221] Specifically, the first lens 311 is a glass lens, and the second lens 312, third lens 313, fourth lens 314, fifth lens 315, sixth lens 316, and seventh lens 317 are all plastic lenses. The plastic lenses are arranged in correspondence with the glass lenses, that is, the first lens 311 is arranged in correspondence with the second lens 312, and the plastic lenses (i.e., the second lens 312, third lens 313, fourth lens 314, fifth lens 315, sixth lens 316, and seventh lens 317) are disposed in the plastic lens barrel 320.

[0222] In addition, the camera module 30 may also include a sealing element 370 disposed between the first lens 311 and the plastic lens barrel 320. Furthermore, the camera module 30 may also include a filter 380 disposed on the image side of the imaging lens 300.

[0223] Please refer to FIG. 3C , FIG. 3D and FIG. 3E ,in FIG. 3E Drawing according to FIG. 3C A magnified view of region 3E of the camera module 30 in the third embodiment.FIG. 3C and FIG. 3E It is known that the plastic lens barrel 320 comprises a first inner surface 321 surrounding the optical axis X and a first outer surface 323 opposite to the first inner surface 321 and further away from the aforementioned plastic lens. The seventh lens 317 of the plastic lens is in physical contact with a first region 322 of the first inner surface 321.

[0224] The frame element 330 comprises a second inner surface 334 surrounding the optical axis X and facing the first outer surface 323. The second inner surface 334 is in physical contact with a second region 335 of the first outer surface 323. A gap 340 is formed between the first outer surface 323 and the second inner surface 334, extending along the direction of the optical axis X from the second region 335, and the gap 340 corresponds to the first region 322. Further, the second region 335 and the first region 322 can not overlap in the direction perpendicular to the optical axis X.

[0225] The imaging lens 300 can further comprise a first annular element 351 forming an annular structure, the first annular structure being disposed on the first inner surface 321, the annular structure corresponding to the second region 335, and the annular structure surrounding the optical axis X and extending away from the frame element 330.

[0226] The annular structure can be in physical contact with a third region 353 of the first inner surface 321, wherein the first inner surface 321 and the annular structure can be integrally formed. In addition, the annular structure is disposed on the third region 353 of the first inner surface 321. Further, the number of annular structures can be multiple, and at least one of the annular structures and the plastic lens can be disposed adjacent to each other.

[0227] Furthermore, the imaging lens 300 can further comprise a second annular element 354 interposed between the fourth lens 314 and the fifth lens 315 for positioning the fourth lens 314 and the fifth lens 315. By FIG. 3E It is known that the second inner surface 334 can have a screw thread so that the second region 335 of the plastic lens barrel 320 is in physical contact with the frame element 330. Specifically, the material of the frame element 330 can be thermally conductive plastic, wherein the thermally conductive plastic is mixed with thermally conductive components such as graphite, carbon fiber, metal powder, etc. The thermally conductive plastic can further have the function of electromagnetic shielding (EMI shielding), thereby reducing the electromagnetic signal interference of the photosensitive element C32. The material of the plastic lens barrel 320 and the material of the first annular element 351 can be plastic.

[0228] By FIG. 3D and FIG. 3EAs can be seen, in the cross section parallel to the optical axis X, the seventh lens 317 is defined with a lens diameter of D7, the plastic lens barrel 320 has a barrel thickness of T7 corresponding to the seventh lens 317 in the first region 322, and the gap 340 corresponds to the minimum width of the first region 322 at the seventh lens 317, which is W7. Furthermore, in the direction parallel to the optical axis X, the length of the overlap between the third region 353 and the second region 335 between the sixth lens 316 and the seventh lens 317 is O1, and the length of the plastic lens barrel 320 is PBL1. The parameters satisfy the conditions in Table 3 below.

[0229]

[0230] It must be noted that T7 defined in the aforementioned third embodiment can be regarded as T as defined in this disclosure; D7 defined in the aforementioned third embodiment can be regarded as D as defined in this disclosure; W7 defined in the aforementioned third embodiment can be regarded as W as defined in this disclosure; O1 defined in the aforementioned third embodiment can be regarded as O as defined in this disclosure; and PBL1 defined in the aforementioned third embodiment can be regarded as PBL as defined in this disclosure.

[0231] <Fourth Implementation>

[0232] Please refer to FIG. 4A The diagram illustrates a camera module 40 according to the fourth embodiment of this disclosure. FIG. 4A It can be seen that the camera module 40 includes an imaging lens 400 and a component carrier C40.

[0233] Please refer to FIG. 4B , FIG. 4C and FIG. 4D , FIG. 4B Drawing according to FIG. 4A An exploded view of the camera module 40 in the fourth embodiment. FIG. 4C Drawing according to FIG. 4A A cross-sectional view of the camera module 40 in the fourth embodiment. FIG. 4D A cross-sectional view of the imaging lens 400 according to the fourth embodiment of this disclosure is shown. FIG. 4B to FIG. 4DAs shown in FIG. 4A, the imaging lens 400 comprises a plurality of lenses, a plastic lens barrel 420, a frame element 430, and a first annular structure (not shown in the figure), wherein a first annular element 451 forms the first annular structure. The plurality of lenses are a first lens 411, a second lens 412, a third lens 413, a fourth lens 414, a fifth lens 415, a sixth lens 416, and a seventh lens 417 arranged in sequence along an optical axis X. The frame element 430 is fixed to the plastic lens barrel 420. Further, the imaging lens 400 can further comprise at least one second annular structure (not shown in the figure), wherein in the fourth embodiment, the number of the second annular structures is four, and each of the four second annular structures is formed by a second annular element 452. In addition, the hardness of the frame element 430 can be greater than that of the plastic lens barrel 420, and the hardness of the first annular element 451 can be greater than that of the plastic lens barrel 420.

[0234] In detail, the element carrier C40 can comprise an electronic element carrier C41, a photosensitive element C42, and a base C43, and the frame element 430 of the imaging lens 400 is fixed to the element carrier C40.

[0235] In addition, the imaging lens 400 can further comprise two protruding structures 460.

[0236] Specifically, the first lens 411, the second lens 412, the fourth lens 414, the fifth lens 415, and the seventh lens 417 are all glass lenses, and the third lens 413 and the sixth lens 416 are both plastic lenses. The plastic lenses and the glass lenses are arranged correspondingly, i.e., the second lens 412 and the fourth lens 414 are arranged correspondingly with the third lens 413, the fifth lens 415 and the seventh lens 417 are arranged correspondingly with the sixth lens 416, and the plastic lenses (i.e., the third lens 413 and the sixth lens 416) are arranged in the plastic lens barrel 420.

[0237] Further, the imaging lens 400 can further comprise a lens maintaining element H arranged in the plastic lens barrel 420 and in physical contact with at least one of the lenses and the plastic lens barrel 420. Specifically, the lens maintaining element H is used to position the first lens 411.

[0238] Furthermore, the camera module 40 can further comprise a filter 480 arranged on the image side of the imaging lens 400.

[0239] Please refer to FIG. 4C , FIG. 4E and FIG. 4F wherein FIG. 4E FIG. 4E shows an enlarged view of the region 4E of the camera module 40 according to the fourth embodiment, FIG. 4C FIG. 4E shows an enlarged view of the region 4E of the camera module 40 according to the fourth embodiment, FIG. 4F FIG. 4E shows an enlarged view of the region 4E of the camera module 40 according to the fourth embodiment, FIG. 4CFIG. 4A is a sectional view of the camera module 40 of FIG. 1, taken along the line A-A of FIG. 1. As shown in FIG. 4A, the imaging lens 400 is disposed in the region 4F of the camera module 40. The imaging lens 400 includes a plastic lens barrel 420 and a frame element 430. The plastic lens barrel 420 includes a first inner surface 421 and a first outer surface 423. The first inner surface 421 of the plastic lens barrel 420 surrounds the optical axis X. In addition, the third lens 413 and the sixth lens 416 of the plastic lens are in physical contact with a first region 422 of the first inner surface 421, respectively. The first outer surface 423 is disposed opposite to the first inner surface 421 and is farther away from the plastic lens than the first inner surface 421. FIG. 4C 、 FIG. 4E and FIG. 4F It is known that the plastic lens barrel 420 includes a first inner surface 421 and a first outer surface 423. The first inner surface 421 of the plastic lens barrel 420 surrounds the optical axis X. In addition, the third lens 413 and the sixth lens 416 of the plastic lens are in physical contact with a first region 422 of the first inner surface 421, respectively. The first outer surface 423 is disposed opposite to the first inner surface 421 and is farther away from the plastic lens than the first inner surface 421.

[0240] The frame element 430 includes a second inner surface 434, which surrounds the optical axis X and faces the first outer surface 423. The second inner surface 434 is in physical contact with a second region 435 of the first outer surface 423. Specifically, the frame element 430 is in physical contact with the second region 435 of the plastic lens barrel 420. The plastic lens barrel 420 and the frame element 430 are dimensioned to achieve the physical contact.

[0241] The imaging lens 400 includes gaps 440 formed between the first outer surface 423 and the second inner surface 434. Each gap 440 extends from the second region 435 along the direction of the optical axis X and corresponds to a first region 422. In addition, the second region 435 and the first region 422 can not overlap in the direction perpendicular to the optical axis X.

[0242] The imaging lens 400 can further include a first annular element 451 forming a first annular structure. The first annular structure is disposed on the first inner surface 421, corresponds to the second region 435, and extends away from the frame element 430 along the direction of the optical axis X.

[0243] Further, the first annular structure can be in physical contact with a third region 453 of the first inner surface 421. The first inner surface 421 and the first annular structure can be integrally formed. In addition, the first annular structure is disposed on the third region 453 of the first inner surface 421.

[0244] The second annular structure formed by the second annular element 452 is disposed on the first inner surface 421 and corresponds to a gap 440. The second annular structure extends away from the gap 440 along the direction of the optical axis X. In a cross-sectional view parallel to the optical axis X, the width of the gap 440 corresponding to the second annular structure can be narrower than the width of the gap 440 corresponding to the adjacent first region 422.

[0245] In addition, the imaging lens 400 can further include a third annular element 453 forming a third annular structure. The third annular structure is disposed on the first inner surface 421 and corresponds to a gap 440. The third annular structure extends away from the gap 440 along the direction of the optical axis X. In a cross-sectional view parallel to the optical axis X, the width of the gap 440 corresponding to the third annular structure can be narrower than the width of the gap 440 corresponding to the adjacent first region 422. FIG. 4FIt is known that the surface of the plastic lens barrel 420 facing the optical axis X (i.e. the first inner side surface 421) can have another first annular structure 4201, which surrounds the optical axis X and extends away from the frame element 430, and is used to position the seventh lens 417. In addition, the first annular structure 4201 is arranged on the third sub-region 455 of the first inner side surface 421. The first annular structure 4201 is in physical contact with the third sub-region 455 of the first inner side surface 421 (as shown by the arrow in FIG. 4B). FIG. 4F It is known that the third sub-region 455 and the first annular structure 4201 are integrally formed.

[0246] FIG. 4F It is known that the imaging lens 400 can further include a glue G, which is arranged between the second inner side surface 434 and the first outer side surface 423, and is used to position the frame element 430 and the plastic lens barrel 420.

[0247] It is known that the protruding structure 460 is arranged on the first outer side surface 423 of the plastic lens barrel 420, and corresponds to the second annular structure. The protruding structure 460 protrudes away from the second annular structure, and can maintain a gap 440 with the frame element 430. FIG. 4F

[0248] Specifically, the material of the frame element 430 and the material of the first annular element 451 can be ceramic, the material of the plurality of second annular elements 452 can be plastic, and the material of the plastic lens barrel 420 is plastic.

[0249] It is known that the protruding structure 460 is arranged on the first outer side surface 423 of the plastic lens barrel 420, and corresponds to the second annular structure. The protruding structure 460 protrudes away from the second annular structure, and can maintain a gap 440 with the frame element 430. FIG. 4D to FIG. 4F ​It is known that, in the cross section parallel to the optical axis X, the third lens 413 defines a lens diameter D3, the sixth lens 416 defines a lens diameter D6, the plastic lens barrel 420 has a thickness T3 at the first region 422 corresponding to the third lens 413, the plastic lens barrel 420 has a thickness T6 at the first region 422 corresponding to the sixth lens 416, the gap 440 has a minimum width W3 at the first region 422 corresponding to the third lens 413, the gap 440 has a minimum width W6 at the first region 422 corresponding to the sixth lens 416, the gap 440 has a minimum width WN1 at the image side of the second annular structure and corresponding to the second lens 412, the gap 440 has a minimum width WN2 at the image side of the third annular structure and corresponding to the third lens 413, the gap 440 has a minimum width WN3 at the image side of the fourth annular structure and corresponding to the fifth lens 415, and the gap 440 has a minimum width WN4 at the image side of the fifth annular structure and corresponding to the sixth lens 416. Furthermore, in the direction parallel to the optical axis X, the third region 453 between the first lens 411 and the second lens 412 overlaps the second region 435 by a length O1, the third region 455 overlaps the second region 438 by a length O2, and the plastic lens barrel 420 has a length PBL1. The parameters satisfy the following Table 4 conditions.

[0250]

[0251] It must be noted that T3 and T6 defined in the fourth embodiment can be regarded as T defined in the present disclosure, respectively, that D3 and D6 defined in the fourth embodiment can be regarded as D defined in the present disclosure, respectively, that W3 and W6 defined in the fourth embodiment can be regarded as W defined in the present disclosure, respectively, that O1 and O2 defined in the fourth embodiment can be regarded as O defined in the present disclosure, respectively, that PBL1 defined in the fourth embodiment can be regarded as PBL defined in the present disclosure, and that WN1, WN2, WN3 and WN4 defined in the fourth embodiment can be regarded as WN defined in the present disclosure, respectively.

[0252] <5th Embodiment>

[0253] Please refer to FIG. 5A and FIG. 5B , FIG. 5A a schematic view of an electronic device 50 according to the 5th embodiment of the present disclosure is shown, FIG. 5B a schematic view of an electronic device 50 according to the 5th embodiment of the present disclosure is shown. In the figure, FIG. 5A and FIG. 5A and FIG. 5BAs shown in FIG. 1, the electronic device 50 comprises a camera module and a taking control interface 510. The camera module comprises an imaging lens (not shown) and a component carrier (not shown). The frame component (not shown) of the imaging lens is fixed on the component carrier. The imaging lens comprises a plurality of lenses (not shown), a plastic lens barrel (not shown), a frame component (not shown), and a gap (not shown). The camera module can comprise the imaging lens of any one of the first to fourth embodiments. However, the present disclosure is not limited thereto.

[0254] In detail, the taking control interface 510 is a touch screen for displaying images and has a touch function. The taking control interface 510 can be used to manually adjust the shooting angle. In detail, the taking control interface 510 comprises an image playback button 514, a camera module switching button 515, an integrated menu button 516, and a zoom control button 518. In detail, the user enters the shooting mode through the taking control interface 510 of the electronic device 50. The camera module switching button 515 can be used to freely switch one of the front camera module 511, the TOF module 513, the wide-angle camera module 517, the telephoto camera module 526, the ultra-wide-angle camera module 524, and the macro camera module 525 to take a picture. The zoom control button 518 is used to adjust the zoom. The focusing and shooting button 520 is used to take a picture after the scene is taken and one of the front camera module 511, the TOF module 513, the wide-angle camera module 517, the telephoto camera module 526, the ultra-wide-angle camera module 524, and the macro camera module 525 is determined. The image playback button 514 can be used to view the picture after taking the picture. The integrated menu button 516 is used to adjust the details (such as timing shooting, shooting ratio, etc.) when taking a picture. In detail, each camera module can comprise the imaging lens of any one of the first to fourth embodiments. However, the present disclosure is not limited thereto.

[0255] The electronic device 50 can further comprise a prompt light 512. The prompt light 512 is arranged on the front surface of the electronic device 50 and can be used to prompt the user of unread messages, missed calls, and the status of the mobile phone.

[0256] Further, after the user enters the shooting mode through the image capturing control interface 510 of the electronic device 50, the camera module collects the imaging light on the photosensitive element and outputs the electronic signal related to the image to the image signal processor (not shown in the figure) of the single-chip system (not shown in the figure). The single-chip system (not shown in the figure) can further include a random access memory (RAM) (not shown in the figure), a central processing unit (not shown in the figure), and a storage unit (not shown 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.

[0257] Further, the electronic device 50 can further include an image software processor and an image signal processor, and can further integrate the image software processor, the image signal processor, the position locator, the transmission signal processor, the gyroscope, the storage unit, and the random access memory in the single-chip system.

[0258] According to the camera specifications of the electronic device 50, the electronic device 50 can further include an optical anti-shake component (not shown in the figure), and further, the electronic device 50 can further include at least one auxiliary focusing element 521 and at least one sensing element (not shown in the figure). The auxiliary focusing element 521 can be a color temperature compensation light emitting element 519, an infrared distance measuring element, a laser focusing module, etc., and the sensing element can have the function of sensing physical momentum and action energy, such as an accelerometer, a gyroscope, a Hall effect element, to sense the shaking and shaking applied by the user's hand or the external environment, thereby facilitating the automatic focusing function of the camera module configuration in the electronic device 50 and the play of the optical anti-shake component, to obtain good imaging quality, which helps the electronic device 50 according to the present disclosure to have multiple shooting functions, such as optimized selfie, low light source HDR (High Dynamic Range), high resolution 4K (4K Resolution) video recording, etc. In addition, the user can directly view the shooting picture of the camera from the image capturing control interface 510 and manually operate the framing range on the image capturing control interface 510 to achieve the seen-is-got automatic focusing function.

[0259] Further, the camera module, the optical image stabilization assembly, the sensing element, the auxiliary focusing element 521 and the electronic element 527 can be disposed on an electronic element board 522, and electrically connected to image signal processors and other related elements through a connector 523 to perform a photographing process. The electronic element board 522 can be a flexible printed circuit board (FPC). The current electronic device, such as a smart phone, has a trend of being thin and light. The camera module and related elements are disposed on a circuit board, and the circuit is integrated to the mainboard of the electronic device by using the connector, which can meet the mechanism design and circuit layout requirements of the limited space inside the electronic device and obtain greater margin. Also, the automatic focusing function of the camera module can be more flexibly controlled through the touch screen of the electronic device. In other embodiments (not shown in the figure), the sensing element and the auxiliary optical element can also be disposed on the mainboard of the electronic device or other forms of carrier boards according to the mechanism design and circuit layout requirements.

[0260] <Sixth Embodiment>

[0261] Please refer to FIG. 6 , which shows a schematic diagram of an electronic device according to the sixth embodiment of the present disclosure applied to a drone 60. As can be seen from FIG. 6 , the electronic device (not shown in the figure) comprises a camera module, wherein the camera module comprises an imaging lens (not shown in the figure) and an element carrier (not shown in the figure), and the frame element (not shown in the figure) of the imaging lens is fixed to the element carrier. Further, the camera module can comprise the imaging lens of the first embodiment to the fourth embodiment, but the present disclosure is not limited thereto.

[0262] In the sixth embodiment, the camera module is a front camera module 610 and a side camera module 620, respectively.

[0263] Specifically, the front camera module 610 is disposed at the front end of the drone 60, and the side camera module 620 is disposed at the side of the drone 60. In this way, the electronic device can cope with complex environmental light.

[0264] <Seventh Embodiment>

[0265] Please refer to FIG. 7 , which shows a schematic diagram of an electronic device according to the seventh embodiment of the present disclosure disposed in a car 70. As can be seen from FIG. 7 , the electronic device (not shown in the figure) comprises a camera module, wherein the camera module comprises an imaging lens (not shown in the figure) and an element carrier (not shown in the figure), and the frame element (not shown in the figure) of the imaging lens is fixed to the element carrier. Further, the camera module can comprise the imaging lens of the first embodiment to the fourth embodiment, but the present disclosure is not limited thereto.

[0266] In the seventh embodiment, the camera modules are front camera module 710, side camera module 720 and rear camera module 730 respectively.

[0267] By setting the front camera module 710, the side camera module 720 and the rear camera module 730 at the front end, the side and the rear end of the automobile 70 respectively, the driver can obtain the information of the external space outside the automobile 70. In this way, more visual angles can be provided to reduce the dead angle, thereby helping to improve the driving safety.

[0268] Although the utility model has been disclosed as above with the embodiment and example, it is not used to limit the utility model, anyone who has ordinary knowledge in the art can make some changes and decorations without departing from the spirit and scope of the utility model, so the protection scope of the utility model is defined by the appended claims.

Claims

1. An imaging lens, characterized in that, Comprising: a plurality of lenses arranged in sequence along an optical axis, comprising: a glass lens; and a first plastic lens disposed corresponding to the glass lens; a plastic lens barrel, the first plastic lens disposed in the plastic lens barrel, the plastic lens barrel comprising: a first inner surface surrounding the optical axis, the first plastic lens physically contacting a first region of the first inner surface; and a first outer surface disposed opposite to the first inner surface and further away from the first plastic lens than the first inner surface; a frame element fixed to the plastic lens barrel, the frame element comprising: a second inner surface surrounding the optical axis and facing the first outer surface, the second inner surface physically contacting a second region of the first outer surface; and a gap formed between the first outer surface and the second inner surface, extending from the second region along a direction of the optical axis, and the gap corresponding to the first region; wherein the imaging lens further comprises at least one first annular structure disposed on the first inner surface, the at least one first annular structure corresponding to the second region, and the at least one first annular structure surrounding the optical axis and extending in a direction away from the frame element.

2. The imaging lens of claim 1, wherein, Further comprising: a first annular element forming the at least one first annular structure, the first annular element physically contacting a third region of the first inner surface.

3. The imaging lens of claim 2, wherein, The first annular element has a hardness greater than the plastic lens barrel.

4. The imaging lens of claim 1, wherein, The first inner surface and the at least one first annular structure are integrally formed.

5. The imaging lens of claim 1, wherein, The frame element comprises an extension structure extending in a direction closer to the optical axis, wherein one of the plurality of lenses is supported on the extension structure.

6. The imaging lens of claim 1, wherein, The frame element has a hardness greater than the plastic lens barrel.

7. The imaging lens of claim 1, wherein, In a direction perpendicular to the optical axis, the second region and the first region do not overlap. 8.The imaging lens according to claim 1, wherein, In a cross-sectional plane parallel to the optical axis, the first plastic lens defines a lens diameter D, and the plastic lens barrel has a barrel thickness T at the first region, which satisfies the following condition: 0.018≤T / D≤0.

6.

9. The imaging lens of claim 8, wherein, In the cross-sectional plane parallel to the optical axis, the first plastic lens defines the lens diameter D, and the plastic lens barrel has the barrel thickness T at the first region, which satisfies the following condition: 0.02≤T / D≤0.

22.

10. The imaging lens of claim 8, wherein, In the cross-sectional plane parallel to the optical axis, the plastic lens barrel has the barrel thickness T at the first region, which satisfies the following condition: 0.22mm≤T≤3.0mm.

11. The imaging lens of claim 1, wherein, In a cross-sectional plane parallel to the optical axis, the gap corresponds to a minimum width W of the first region, which satisfies the following condition: 0.0012mm≤W≤0.24mm.

12. The imaging lens of claim 1, wherein, The at least one first annular structure is disposed on a third region of the first inner surface, and in a direction parallel to the optical axis, the third region overlaps the second region by a length O, and the plastic lens barrel has a length PBL, which satisfies the following condition: 0.012≤O / PBL≤0.

42.

13. The imaging lens of claim 1, wherein, The at least one first annular structure is a plurality.

14. The imaging lens of claim 1, wherein, Further comprising: a fixing element fixing the plastic lens barrel and the frame element, the fixing element disposed on the frame element and physically contacting at least one of the plurality of lenses and the plastic lens barrel.

15. The imaging lens of claim 1, wherein, The plurality of lenses further comprises: a second plastic lens, the at least one first annular structure is disposed between the second plastic lens and the first plastic lens; wherein the second plastic lens is in physical contact with the first inner surface, and the second plastic lens corresponds to the gap.

16. The imaging lens of claim 1, wherein, The at least one first annular structure is disposed adjacent to the first plastic lens.

17. The imaging lens of claim 1, wherein, Further comprising: a second annular structure disposed on the first inner surface and corresponding to the gap, the second annular structure surrounds the optical axis and extends away from the gap; wherein in a cross-sectional plane parallel to the optical axis, a width of the gap corresponding to the second annular structure is narrower than a width of the gap corresponding to the first region, a minimum width WN of the gap corresponding to the second annular structure satisfies the following condition: 0.004mm≤WN≤0.05mm.

18. The imaging lens of claim 17, wherein, A minimum width WN of the gap corresponding to the second annular structure satisfies the following condition: 0.005mm≤WN≤0.04mm.

19. The imaging lens of claim 17, wherein, Further comprising: a protruding structure disposed on the first outer surface of the plastic lens barrel and corresponding to the second annular structure, the protruding structure protrudes away from the second annular structure and maintains the gap with the frame element.

20. The imaging lens of claim 19, wherein, The protruding structure comprises a plurality of sub-protruding structures arranged at intervals from each other.

21. A camera module characterized by comprising: Comprising: The imaging lens of claim 1; and an element carrier, wherein the frame element of the imaging lens is fixed to the element carrier.

22. An electronic device, comprising: Comprising: The camera module of claim 21.

23. An imaging lens characterized by comprising, in order from the object, Comprising: a plurality of lenses arranged in sequence along an optical axis, comprising: a glass lens; and a first plastic lens disposed corresponding to the glass lens; a plastic lens barrel, the first plastic lens is disposed in the plastic lens barrel, the plastic lens barrel comprises: a first inner surface surrounding the optical axis, the first plastic lens is in physical contact with a first region of the first inner surface; and a first outer surface disposed opposite to the first inner surface and farther away from the first plastic lens than the first inner surface; a frame element fixed to the plastic lens barrel, the frame element comprises: a second inner surface surrounding the optical axis and facing the first outer surface, the second inner surface is in physical contact with a second region of the first outer surface; and a gap formed between the first outer surface and the second inner surface, extending from the second region along the direction of the optical axis, and the gap corresponds to the first region; wherein the imaging lens further comprises at least one annular structure disposed on the first inner surface, the at least one annular structure corresponds to the gap, the at least one annular structure surrounds the optical axis and extends away from the gap; wherein in a cross-sectional plane parallel to the optical axis, a width of the gap corresponding to the at least one annular structure is narrower than a width of the gap corresponding to the first region, a minimum width WN of the gap corresponding to the at least one annular structure satisfies the following condition: 0.004mm≤WN≤0.05mm.

24. The imaging lens of claim 23, wherein, Further comprising: a protruding structure disposed on the first outer surface of the plastic lens barrel and corresponding to the at least one annular structure, the protruding structure protrudes away from the at least one annular structure and maintains the gap with the frame element.

25. The imaging lens of claim 24, wherein, The protruding structure comprises a plurality of sub-protruding structures arranged at intervals from each other.

26. The imaging lens of claim 23, wherein, In the parallel light axis profile, the gap corresponds to the minimum width W of the first region, which satisfies the following condition: 0.0012mm≤W≤0.24mm.

27. The imaging lens of claim 23, wherein, In the parallel light axis profile, the second region does not overlap with the first region.

28. The imaging lens of claim 23, wherein, In the parallel light axis profile, the first plastic lens defines a lens diameter D, and a barrel thickness T of the plastic barrel at the first region, which satisfies the following condition: 0.018≤T / D≤0.

6.

29. The imaging lens of claim 23, wherein, The number of the at least one annular structure is multiple.

30. The imaging lens of claim 23, wherein, The plurality of lenses further comprises: a second plastic lens, the at least one annular structure being arranged between the first plastic lens and the second plastic lens; wherein the second plastic lens is in physical contact with the first inner side surface, and the second plastic lens corresponds to the gap.

31. The imaging lens of claim 23, wherein, The at least one annular structure is arranged adjacent to the first plastic lens.

Images