Optical lens element, imaging lens and electronic device

Abstract

An optical lens element, an imaging lens and an electronic device, the optical lens element having a central axis including a first side surface, a second side surface and an outer diameter surface. The first side face and the second side face are oppositely arranged along the center axis. The outer diameter surface is arranged between the first side surface and the second side surface, is far away from the central shaft compared with the first side surface and the second side surface, and comprises an arc-shaped area and a shrinkage area; the arc-shaped area comprises a first strip-shaped structure part; the shrinking and descending area extends in the direction surrounding the center shaft and is arranged corresponding to the two arc-shaped ends of the arc-shaped area, the shrinking and descending area is closer to the center shaft than the arc-shaped area, and the shrinking and descending area comprises a second strip-shaped structure part. Therefore, by providing the optical lens element of which the outer diameter surface is provided with the strip-shaped structure, the probability that stray light is generated on the outer diameter surface can be reduced.

Description

TECHNICAL FIELD

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

[0002] In recent years, portable electronic devices, such as smart electronic devices, tablet computers, etc., have flooded into modern people's lives, 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 imaging quality of imaging lenses. Therefore, developing an imaging lens that can improve imaging quality has become an important and urgent problem in the industry. SUMMARY

[0003] The present disclosure provides an optical lens element, an imaging lens and an electronic device, by providing an optical lens element with a strip-shaped structure on the outer diameter surface, the probability of stray light occurring on the outer diameter surface can be reduced.

[0004] According to an aspect of the present disclosure, an optical lens element is provided, having a central axis, comprising a first side surface, a second side surface and an outer diameter surface. The central axis passes through the first side surface, and the first side surface sequentially comprises a first optical zone and a first peripheral zone in a direction away from the central axis. The central axis passes through a center of the first optical zone. The first peripheral zone is adjacent to the first optical zone. The first side surface and the second side surface are oppositely arranged along the central axis, and the second side surface sequentially comprises a second optical zone and a second peripheral zone in a direction away from the central axis. The central axis passes through a center of the second optical zone. The second peripheral zone is adjacent to the second optical zone. The outer diameter surface is arranged between the first side surface and the second side surface, and the outer diameter surface is farther away from the central axis than the first side surface and the second side surface. The outer diameter surface comprises an arc-shaped zone and a reduced zone. The arc-shaped zone forms an arc shape with the central axis as the center and has two arc-shaped ends. The arc-shaped zone comprises a first strip-shaped structure part, the first strip-shaped structure part has a plurality of first strip-shaped structures, extends from the first side surface to the second side surface, and the first strip-shaped structures are arranged around the central axis along the arc-shaped zone. The reduced zone extends in a direction around the central axis and has two end portions. The two end portions of the reduced zone are arranged corresponding to the two arc-shaped ends of the arc-shaped zone, respectively, and the reduced zone is closer to the central axis than the arc-shaped zone. The reduced zone comprises a second strip-shaped structure part, the second strip-shaped structure part has a plurality of second strip-shaped structures, extends from the first side surface to the second side surface, and the second strip-shaped structures are arranged from one of the two end portions to the other. An extension line of each first strip-shaped structure converges to a point along a conical surface, and an extension line of each second strip-shaped structure does not converge in two extension directions of a plane.

[0005] The optical lens element according to the preceding aspect, wherein each of the first strip structure and each of the second strip structure has a wedge taper structure tapering away from the central axis.

[0006] The optical lens element according to the preceding aspect, wherein the outer diameter surface further comprises a sprue mark disposed on the reduced region, and the sprue mark is disposed adjacent to the second strip structure portion along the central axis.

[0007] The optical lens element according to the preceding aspect, wherein the first strip structure portion forms a first included angle with the central axis, the first included angle has an angle θ1, and the following condition is satisfied: 0 degree ≤ θ1 ≤ 45 degrees. Further, the following condition can be satisfied: 0 degree ≤ θ1 ≤ 25 degrees.

[0008] The optical lens element according to the preceding aspect, wherein the second strip structure portion forms a second included angle with the central axis, the second included angle has an angle θ2, and the following condition is satisfied: 0 degree ≤ θ2 ≤ 45 degrees. Further, the following condition can be satisfied: 0 degree ≤ θ2 ≤ 25 degrees.

[0009] The optical lens element according to the preceding aspect, wherein the second strip structure portion has a length L along the central axis, and the second strip structure portion has a length W from one of the two end portions to the other end portion, and the following condition is satisfied: 0.10 < L / W < 1.10. Further, the following condition can be satisfied: 0.15 < L / W < 0.85.

[0010] The optical lens element according to the preceding aspect, wherein one of the first optical region and the second optical region has a concave portion. Further, the concave portion is disposed corresponding to the first strip structure portion and the second strip structure portion away from the central axis.

[0011] The optical lens element according to the preceding aspect, wherein the distance from the center of the one of the first optical region and the second optical region having the concave portion to the edge along the central axis is S, and the distance from the center of the first optical region to the center of the second optical region is CT, and the following condition is satisfied: 0.6 < S / CT < 2.7. Further, the following condition can be satisfied: 0.7 < S / CT < 2.3.

[0012] An optical lens element according to one aspect of the present disclosure has a central axis, and includes a first side surface, a second side surface, and an outer diameter surface. The central axis passes through the first side surface, which in turn includes a first optical zone and a first peripheral zone in a direction away from the central axis. The central axis passes through a center of the first optical zone. The first peripheral zone is adjacent to the first optical zone. The first side surface and the second side surface are disposed opposite each other along the central axis, and the second side surface in turn includes a second optical zone and a second peripheral zone in a direction away from the central axis. The central axis passes through a center of the second optical zone. The second peripheral zone is adjacent to the second optical zone. The outer diameter surface is disposed between the first side surface and the second side surface, and the outer diameter surface is farther from the central axis than the first side surface and the second side surface. The outer diameter surface includes an arcuate zone and a recessed zone. The arcuate zone forms an arc with the central axis as a center and has two arcuate ends, and the arcuate zone includes a first strip structure portion having a plurality of first strip structures extending from the first side surface to the second side surface and arranged around the central axis along the arcuate zone. The recessed zone extends in a direction around the central axis and has two end portions, and the two end portions of the recessed zone are respectively disposed corresponding to the two arcuate ends of the arcuate zone, and the recessed zone is closer to the central axis than the arcuate zone, and the recessed zone includes a second strip structure portion having a plurality of second strip structures extending from the first side surface to the second side surface and arranged from one of the two end portions to the other end portion. The outer diameter surface further includes a sprue mark disposed on the recessed zone, and the sprue mark and the second strip structure portion are disposed adjacent to each other along the central axis.

[0013] The optical lens element according to the foregoing aspect, wherein each of the first strip structures and each of the second strip structures has a wedge taper structure tapering away from the central axis.

[0014] The optical lens element according to the foregoing aspect, wherein the second strip structure portion forms a second included angle with the central axis, and the second included angle has an angle θ2 satisfying the following condition: 0 degrees ≤ θ2 ≤ 45 degrees. Further, the second included angle can satisfy the following condition: 0 degrees ≤ θ2 ≤ 25 degrees.

[0015] The optical lens element according to the foregoing aspect, wherein the second strip structure portion has a length L along the central axis, and the second strip structure portion has a length W from one of the two end portions to the other end portion, and the following condition is satisfied: 0.10 < L / W < 1.10. Further, the following condition can be satisfied: 0.15 < L / W < 0.85.

[0016] The optical lens element according to the foregoing aspect, wherein one of the first optical zone and the second optical zone can have a concave portion. Further, the concave portion is disposed corresponding to the first strip structure portion and the second strip structure portion in a direction away from the central axis.

[0017] The optical lens element according to the foregoing aspect, wherein a distance from a center of one of the first optical zone and the second optical zone having the concave portion to an edge thereof in a direction along the central axis is S, and a distance from the center of the first optical zone to the center of the second optical zone is CT, which satisfies the following condition: 0.6 < S / CT < 2.7. Further, it can satisfy the following condition: 0.7 < S / CT < 2.3.

[0018] An optical lens element according to one aspect of the present disclosure has a central axis, and includes a first side surface, a second side surface, and an outer diameter surface. The central axis passes through the first side surface, which sequentially includes a first optical zone and a first peripheral zone in a direction away from the central axis. The central axis passes through a center of the first optical zone. The first peripheral zone is adjacent to the first optical zone. The first side surface and the second side surface are oppositely arranged along the central axis. The second side surface sequentially includes a second optical zone and a second peripheral zone in a direction away from the central axis. The central axis passes through a center of the second optical zone. The second peripheral zone is adjacent to the second optical zone. The outer diameter surface is arranged between the first side surface and the second side surface, and is farther away from the central axis than the first side surface and the second side surface. The outer diameter surface includes an arc-shaped zone and a reduced zone. The arc-shaped zone forms an arc shape with the central axis as a center and has two arc-shaped ends. The arc-shaped zone includes a first strip-shaped structure portion having a plurality of first strip-shaped structures extending from the first side surface to the second side surface, and the first strip-shaped structures are arranged along the central axis around the arc-shaped zone. The reduced zone extends in a direction around the central axis and has two end portions. The two end portions of the reduced zone are arranged corresponding to the two arc-shaped ends of the arc-shaped zone, respectively. The reduced zone is closer to the central axis than the arc-shaped zone. The reduced zone includes a second strip-shaped structure portion having a plurality of second strip-shaped structures extending from the first side surface to the second side surface, and the second strip-shaped structures are arranged from one of the two end portions to the other. The outer diameter surface further includes a transition zone arranged between the two arc-shaped ends and the two end portions, and connecting the reduced zone and the arc-shaped zone. The transition zone includes a third strip-shaped structure portion having at least two third strip-shaped structures extending from the first side surface to the second side surface. A third position at which an extension line of each third strip-shaped structure converges is different from a first position at which an extension line of each first strip-shaped structure converges.

[0019] The optical lens element according to the foregoing aspect, wherein each first strip-shaped structure and each second strip-shaped structure has a wedge-shaped tapering structure tapering away from the central axis.

[0020] The optical lens element according to the foregoing aspect, wherein each third strip-shaped structure has a wedge-shaped tapering structure tapering away from the central axis.

[0021] The optical lens element according to the preceding aspect, wherein a length of the second strip structure portion along a direction of the central axis is L, a length of the second strip structure portion along one of the two end portions to the other is W, and the following condition is satisfied: 0.10 < L / W < 1.10. Further, the following condition can be satisfied: 0.15 < L / W < 0.85.

[0022] The optical lens element according to the preceding aspect, wherein the first strip structure portion forms a first included angle with the central axis, and an angle of the first included angle is θ1, and the following condition is satisfied: 0 degrees ≤ θ1 ≤ 45 degrees. Further, the following condition can be satisfied: 0 degrees ≤ θ1 ≤ 25 degrees.

[0023] An optical lens element according to one aspect of the present disclosure has a central axis, and includes a first side surface, a second side surface, and an outer diameter surface. The central axis passes through the first side surface, and the first side surface sequentially includes a first optical zone and a first peripheral zone in a direction away from the central axis. The central axis passes through a center of the first optical zone. The first peripheral zone is adjacent to the first optical zone. The second side surface is disposed opposite the first side surface along the central axis, and the second side surface sequentially includes a second optical zone and a second peripheral zone in a direction away from the central axis. The central axis passes through a center of the second optical zone. The second peripheral zone is adjacent to the second optical zone. The outer diameter surface is disposed between the first side surface and the second side surface, and the outer diameter surface is farther from the central axis than the first side surface and the second side surface. The outer diameter surface includes an arcuate zone and a tapered zone. The arcuate zone forms an arc with the central axis as a center and has two arcuate ends. The arcuate zone includes a first strip structure portion having a plurality of first strip structures extending from the first side surface to the second side surface, and the first strip structures are arranged along the central axis around the arcuate zone. The tapered zone extends in a direction around the central axis and has two end portions. The two end portions of the tapered zone are respectively disposed corresponding to the two arcuate ends of the arcuate zone. The tapered zone is closer to the central axis than the arcuate zone. The tapered zone includes a second strip structure portion having a plurality of second strip structures extending from the first side surface to the second side surface, and the second strip structures are arranged from one of the two end portions to the other. The outer diameter surface can further include a transition zone disposed between the two arcuate ends and the two end portions and connecting the tapered zone and the arcuate zone. The transition zone includes a third strip structure portion having at least two third strip structures extending from the first side surface to the second side surface. An extension line of each third strip structure is capable of converging to a point.

[0024] The optical lens element according to the preceding aspect, wherein each first strip structure and each second strip structure has a wedge tapering structure tapering in a direction away from the central axis.

[0025] The optical lens element according to the preceding aspect, wherein each third strip structure has a wedge tapering structure tapering in a direction away from the central axis.

[0026] According to the aforementioned optical lens element, the first strip-shaped structure forms a first angle with the central axis, the angle of which is θ1, which satisfies the following condition: 0 degrees ≤ θ1 ≤ 45 degrees. Furthermore, it can also satisfy the following condition: 0 degrees ≤ θ1 ≤ 25 degrees.

[0027] According to the aforementioned optical lens element, the second strip-shaped structure forms a second angle with the central axis, the angle of which is θ2, satisfying the following condition: 0 degrees ≤ θ2 ≤ 45 degrees. Furthermore, it can satisfy the following condition: 0 degrees ≤ θ2 ≤ 25 degrees.

[0028] According to the present disclosure, an imaging lens is provided, comprising a plastic lens barrel and an imaging lens group, the imaging lens group being housed in the plastic lens barrel and including at least one optical lens element of the aforementioned manner.

[0029] According to the present disclosure, an electronic device is provided, comprising an imaging lens of the aforementioned manner. Attached Figure Description

[0030] FIG. 1A A schematic diagram illustrating an imaging lens according to the first embodiment of this disclosure;

[0031] FIG. 1B Drawing according to FIG. 1A A three-dimensional schematic diagram of the optical lens element in the first embodiment;

[0032] FIG. 1C Drawing according to FIG. 1B A planar schematic diagram of an optical lens element;

[0033] FIG. 1D Drawing according to FIG. 1B Side view of the optical lens element;

[0034] FIG. 1E Drawing according to FIG. 1B A schematic diagram of the extension lines of the first strip structure;

[0035] FIG. 1F Drawing according to FIG. 1B A schematic diagram of the extension lines of the second strip structure;

[0036] FIG. 1G Drawing according to FIG. 1B A schematic diagram of the extension line of the third strip structure;

[0037] FIG. 1H Draw FIG. 1B A schematic diagram of the parameters of an optical lens element;

[0038] FIG. 1I Draw FIG. 1BA schematic diagram of the parameters of an optical lens element;

[0039] FIG. 1J Drawing according to FIG. 1A A partially enlarged schematic diagram of the optical lens element in the second embodiment of the first embodiment;

[0040] FIG. 1K Drawing according to FIG. 1A A partially enlarged schematic diagram of the optical lens element in the third embodiment of the first embodiment;

[0041] FIG. 1L Drawing according to FIG. 1A A partially enlarged schematic diagram of the optical lens element in the fourth embodiment of the first embodiment;

[0042] FIG. 1M Drawing according to FIG. 1A A partially enlarged schematic diagram of the optical lens element in the fifth embodiment of the first embodiment;

[0043] FIG. 2A A schematic diagram illustrating an imaging lens according to the second embodiment of this disclosure;

[0044] FIG. 2B Drawing according to FIG. 2A A three-dimensional schematic diagram of the optical lens element of the first embodiment in the second embodiment;

[0045] FIG. 2C Drawing according to FIG. 2B A planar schematic diagram of an optical lens element;

[0046] FIG. 2D Drawing according to FIG. 2B Side view of the optical lens element;

[0047] FIG. 2E Drawing according to FIG. 2B A schematic diagram of the extension lines of the first strip structure;

[0048] FIG. 2F Drawing according to FIG. 2B A schematic diagram of the extension lines of the second strip structure;

[0049] FIG. 2G Drawing according to FIG. 2B A schematic diagram of the extension line of the third strip structure;

[0050] FIG. 2H Draw FIG. 2B A schematic diagram of the parameters of an optical lens element;

[0051] FIG. 2I Draw FIG. 2B A schematic diagram of the parameters of an optical lens element;

[0052] FIG. 3A A schematic diagram illustrating an imaging lens according to the third embodiment of this disclosure;

[0053] FIG. 3B Drawing according to FIG. 3A A three-dimensional schematic diagram of the optical lens element of the first embodiment in the third embodiment;

[0054] FIG. 3C Drawing according to FIG. 3B A planar schematic diagram of an optical lens element;

[0055] FIG. 3D Drawing according to FIG. 3B Side view of the optical lens element;

[0056] FIG. 3E Draw FIG. 3B A schematic diagram of the parameters of an optical lens element;

[0057] FIG. 3F Draw FIG. 3B A schematic diagram of the parameters of an optical lens element;

[0058] FIG. 4A A schematic diagram of an electronic device according to the fourth embodiment of this disclosure is shown;

[0059] FIG. 4B Drawing according to FIG. 4A Another schematic diagram of the electronic device in the fourth embodiment;

[0060] FIG. 4C Drawing according to FIG. 4A A schematic diagram of an image captured by an electronic device in the fourth embodiment;

[0061] FIG. 4D Drawing according to FIG. 4A Another image diagram captured by the electronic device in the fourth embodiment;

[0062] FIG. 4E Drawing according to FIG. 4A Another image diagram captured by the electronic device in the fourth embodiment;

[0063] FIG. 5 A schematic diagram of an electronic device according to the fifth embodiment of this disclosure is shown;

[0064] FIG. 6A A schematic diagram of the vehicle tool according to the sixth embodiment of this disclosure is shown;

[0065] FIG. 6B Drawing according to FIG. 6A Another schematic diagram of the vehicle tools in the sixth embodiment; and

[0066] FIG. 6C Fig. 1 shows a schematic diagram of a vehicle tool according to an embodiment of the present application. FIG. 6A Fig. 6 shows another schematic diagram of a vehicle tool in a sixth embodiment.

[0067]

Symbol Explanation

[0068] 10, 20, 30: imaging lens

[0069] 11, 21, 31: plastic lens barrel

[0070] 12, 22, 32a, 32b: lens element

[0071] 13, 23: light-shielding sheet

[0072] 14, 24: fixing ring

[0073] 25: spacer ring

[0074] 100, 100a, 100b, 100c, 100d, 200, 300: optical lens element

[0075] 110, 110b, 210, 310: first side surface

[0076] 111, 211, 311: first optical zone

[0077] 112, 212, 312: first peripheral zone

[0078] 120, 120b, 220, 320: second side surface

[0079] 121, 221, 321: second optical zone

[0080] 1211, 2111, 3111: concave portion

[0081] 122, 222, 322: second peripheral zone

[0082] 130, 230, 330: outer diameter surface

[0083] 131, 231, 331: arc-shaped zone

[0084] 1311, 1311a, 1311b, 1311c, 1311d, 2311, 3311: first strip-shaped structure

[0085] 132, 232, 332: step-down zone

[0086] 1321, 1321a, 1321b, 1321c, 1321d, 2321, 3321: second strip-shaped structure

[0087] 133, 233, 333: turning zone

[0088] 1331, 1331a, 1331b, 1331c, 1331d, 2331, 3331: third strip structure

[0089] 134, 234, 334: injection mark

[0090] 40, 50: electronic device

[0091] 41: high-pixel camera module

[0092] 42, 51, 52: ultra-wide camera module

[0093] 43, 44, 55, 56, 57, 58: telephoto camera module

[0094] 45: imaging signal processing element

[0095] 46: user interface

[0096] 53, 54: wide-angle camera module

[0097] 59: TOF module

[0098] 501: flash module

[0099] 60: vehicle tool

[0100] 61: camera module

[0101] A: angle of view

[0102] I1, I2, I3, I4: external space information

[0103] L1, L2, L3: extension line

[0104] P1, P3: point

[0105] X: center axis

[0106] θ1, θ1’, θ2, θ2’: angle

[0107] L, W: length

[0108] S, CT: distance DETAILED DESCRIPTION

[0109] The present disclosure provides an optical lens element having a central axis, comprising a first side surface, a second side surface, and an outer surface. The central axis passes through the first side surface, which comprises a first optical zone and a first peripheral zone in sequence in a direction away from the central axis. The central axis passes through a center of the first optical zone. The first peripheral zone is adjacent to the first optical zone. The first side surface and the second side surface are disposed opposite to each other along the central axis, and the second side surface comprises a second optical zone and a second peripheral zone in sequence in a direction away from the central axis. The central axis passes through a center of the second optical zone. The second peripheral zone is adjacent to the second optical zone. The outer surface is disposed between the first side surface and the second side surface, and the outer surface is farther away from the central axis than the first side surface and the second side surface. The outer surface comprises an arc-shaped zone and a recessed zone. The arc-shaped zone forms an arc shape with the central axis as a center and has two arc-shaped ends. The arc-shaped zone comprises a first strip structure part having a plurality of first strip structures extending from the first side surface to the second side surface and arranged around the central axis along the arc-shaped zone. The recessed zone extends in a direction around the central axis and has two end portions. The two end portions of the recessed zone are respectively disposed corresponding to the two arc-shaped ends of the arc-shaped zone. The recessed zone is closer to the central axis than the arc-shaped zone. The recessed zone comprises a second strip structure part having a plurality of second strip structures extending from the first side surface to the second side surface and arranged from one of the two end portions to the other. An extension line of each first strip structure converges to a point along a conical surface. An extension line of each second strip structure does not converge in two extension directions of a plane. Thus, the present disclosure provides an optical lens element with a strip structure disposed on an outer surface, which provides a non-axially symmetric processing technology in manufacturing and reduces the probability of stray light generated on the outer surface. The arrangement and configuration relationship between the first strip structure part and the second strip structure part can provide the manufacturability of a mold and provide structural matching through two different extension relationships.

[0110] In particular, the optical lens element provided by the present disclosure can be made of transparent plastic material. The arc-shaped zone can form a non-complete circle or be composed of a plurality of arcs. The two end portions of the recessed zone are disposed adjacent to the arc-shaped zone and form a recessed surface. The first strip structures and the second strip structures can have different geometric shapes, and the arrangement of the first strip structures and the arrangement of the second strip structures are different. The first strip structures and the second strip structures can be made by using two different processing procedures, thereby achieving geometric structural matching. The structural ends of the first strip structures and the structural ends of the second strip structures can be sharp ends in design, but can also be rounded ends according to different manufacturing conditions, without being limited by the present disclosure. The extension line of the first strip structures can converge to a point on the central axis or a point deviating from the central axis. The extension line of the second strip structures can not intersect on a plane.

[0111] Each of the first strip structure and the second strip structure has a wedge-shaped taper structure tapering away from the central axis. In this way, the structural integrity of the optical lens element on the strip structure can be precisely controlled.

[0112] The outer diameter surface can further include a gate mark disposed on the reduced area and adjacent to the second strip structure portion along the central axis. In this way, better molding efficiency can be maintained and the appearance stability of the strip structure can be provided.

[0113] The first strip structure portion forms a first included angle with the central axis, and the angle of the first included angle is θ1, which satisfies the following condition: 0 degrees ≤ θ1 ≤ 45 degrees. In this way, the risk of damage to the first strip structure during assembly can be reduced. Furthermore, it can satisfy the following condition: 0 degrees ≤ θ1 ≤ 25 degrees. In this way, the first strip structure can extend a sufficient length in the direction of the central axis, and the release angle of the outer diameter surface can be provided.

[0114] The second strip structure portion forms a second included angle with the central axis, and the angle of the second included angle is θ2, which satisfies the following condition: 0 degrees ≤ θ2 ≤ 45 degrees. In this way, the risk of damage to the second strip structure during assembly can be reduced. Furthermore, it can satisfy the following condition: 0 degrees ≤ θ2 ≤ 25 degrees. In this way, the second strip structure can extend a sufficient length in the direction of the central axis, and the release angle of the outer diameter surface can be provided.

[0115] The length of the second strip structure portion along the direction of the central axis is L, and the length of the second strip structure portion along one of the two end portions to the other is W, which satisfies the following condition: 0.10 < L / W < 1.10. In this way, more efficient processing conditions can be provided. Furthermore, it can satisfy the following condition: 0.15 < L / W < 0.85. In this way, it can be further ensured that the reduced area has a sufficient area range covered by the second strip structure portion.

[0116] One of the first optical area and the second optical area can have a concave portion. In this way, it is suitable for optical lens elements with a concave surface. Furthermore, the concave portion is disposed corresponding to the first strip structure portion and the second strip structure portion in a direction away from the central axis. In this way, it is beneficial to eliminate stray light from internal reflection transmission of the lens.

[0117] The distance from the center to the edge of the one of the first optical area and the second optical area having the concave portion along the direction of the central axis is S, and the distance from the center of the first optical area to the center of the second optical area is CT, which satisfies the following condition: 0.6 < S / CT < 2.7. In this way, a larger curvature of the optical lens element can be provided, which can be widely used in high-optical-quality imaging lenses. Furthermore, it can satisfy the following condition: 0.7 < S / CT < 2.3. In this way, the molding precision of the optical area can be further considered.

[0118] The present disclosure provides an optical lens element having a central axis, comprising a first side surface, a second side surface, and an outer diameter surface. The central axis passes through the first side surface, which sequentially comprises a first optical zone and a first peripheral zone in a direction away from the central axis. The central axis passes through a center of the first optical zone. The first peripheral zone is adjacent to the first optical zone. The first side surface and the second side surface are oppositely arranged along the central axis, and the second side surface sequentially comprises a second optical zone and a second peripheral zone in a direction away from the central axis. The central axis passes through a center of the second optical zone. The second peripheral zone is adjacent to the second optical zone. The outer diameter surface is arranged between the first side surface and the second side surface, and the outer diameter surface is farther away from the central axis than the first side surface and the second side surface. The outer diameter surface comprises an arc-shaped zone and a recessed zone. The arc-shaped zone forms an arc shape with the central axis as the center and has two arc-shaped ends. The arc-shaped zone comprises a first strip structure part having a plurality of first strip structures extending from the first side surface to the second side surface and arranged around the central axis along the arc-shaped zone. The recessed zone extends in a direction around the central axis and has two end portions. The two end portions of the recessed zone are respectively arranged corresponding to the two arc-shaped ends of the arc-shaped zone. The recessed zone is closer to the central axis than the arc-shaped zone. The recessed zone comprises a second strip structure part having a plurality of second strip structures extending from the first side surface to the second side surface and arranged from one of the two end portions to the other. The outer diameter surface further comprises a sprue mark arranged on the recessed zone. The sprue mark and the second strip structure part are arranged adjacent to each other in the direction of the central axis. Thus, the present disclosure provides an optical lens element with a strip structure arranged on the outer diameter surface. In the manufacturing process, a non-axially symmetric manufacturing technology is provided, and the probability of stray light generated on the outer diameter surface is reduced. Furthermore, the arrangement relationship of the first strip structure part and the second strip structure part can provide the manufacturability of the mold, maintain good molding efficiency, and provide appearance stability of the strip structure.

[0119] Each first strip structure and each second strip structure has a wedge-shaped tapering structure tapering away from the central axis. Thus, the structural integrity of the optical lens element on each strip structure can be precisely controlled.

[0120] The second strip structure part and the central axis form a second included angle θ2, which satisfies the following condition: 0 degrees ≤ θ2 ≤ 45 degrees. Thus, the risk of damage to the second strip structure during assembly can be reduced. Furthermore, it can satisfy the following condition: 0 degrees ≤ θ2 ≤ 25 degrees. Thus, it is beneficial to extend the strip structure in the direction of the central axis to a sufficient length and provide a release angle of the outer diameter surface.

[0121] The length of the second strip-shaped structure portion in the direction of the central axis is L, and the length of the second strip-shaped structure portion in the direction from one of the two end portions to the other is W, which satisfies the following condition: 0.10 < L / W < 1.10. In this way, more efficient processing conditions are provided. Furthermore, it can satisfy the following condition: 0.15 < L / W < 0.85. In this way, it can further ensure that the shrinkage area has a sufficient area range that can be covered by the second strip-shaped structure portion.

[0122] One of the first optical area and the second optical area can have a concave portion. In this way, it is suitable for optical lens elements with a concave surface shape. Furthermore, the concave portion is arranged corresponding to the first strip-shaped structure portion and the second strip-shaped structure portion in the direction away from the central axis. In this way, it is beneficial to eliminate stray light of internal reflection transmission of the lens.

[0123] The distance from the center to the edge of the one of the first optical area and the second optical area having the concave portion in the direction of the central axis is S, and the distance from the center of the first optical area to the center of the second optical area is CT, which satisfies the following condition: 0.6 < S / CT < 2.7. In this way, it can provide a larger curvature of the optical lens element, which can be widely used in high-optical-quality imaging lenses. Furthermore, it can satisfy the following condition: 0.7 < S / CT < 2.3. In this way, it can further consider the forming precision of the optical area.

[0124] The present disclosure provides an optical lens element having a central axis, comprising a first side surface, a second side surface, and an outer diameter surface. The central axis passes through the first side surface, which comprises a first optical zone and a first peripheral zone in sequence in a direction away from the central axis. The central axis passes through a center of the first optical zone. The first peripheral zone is adjacent to the first optical zone. The first side surface and the second side surface are disposed opposite to each other along the central axis, and the second side surface comprises a second optical zone and a second peripheral zone in sequence in a direction away from the central axis. The central axis passes through a center of the second optical zone. The second peripheral zone is adjacent to the second optical zone. The outer diameter surface is disposed between the first side surface and the second side surface, and the outer diameter surface is farther away from the central axis than the first side surface and the second side surface. The outer diameter surface comprises an arc-shaped zone and a tapered zone. The arc-shaped zone forms an arc shape with the central axis as a center and has two arc-shaped ends. The arc-shaped zone comprises a first strip structure part having a plurality of first strip structures extending from the first side surface to the second side surface, and the first strip structures are arranged along the arc-shaped zone around the central axis. The tapered zone extends in a direction around the central axis and has two end portions. The two end portions of the tapered zone are respectively disposed corresponding to the two arc-shaped ends of the arc-shaped zone, and the tapered zone is closer to the central axis than the arc-shaped zone. The tapered zone comprises a second strip structure part having a plurality of second strip structures extending from the first side surface to the second side surface, and the second strip structures are arranged along one of the two end portions to the other. The outer diameter surface further comprises a transition zone disposed between the two arc-shaped ends and the two end portions and connecting the tapered zone and the arc-shaped zone. The transition zone comprises a third strip structure part having at least two third strip structures extending from the first side surface to the second side surface. A third position at which an extension line of each third strip structure converges is different from a first position at which an extension line of each first strip structure converges. Thus, the present disclosure provides an optical lens element with a strip structure disposed on an outer diameter surface, provides a non-axially symmetric processing technology in manufacturing, and reduces the probability of stray light generated on the outer diameter surface. The arrangement and configuration relationship between the first strip structure part and the second strip structure part can provide manufacturability of a mold, and the third strip structure part of the transition zone provides a buffer zone for mold processing, so that the strip structures can be arranged more closely.

[0125] Each first strip structure and each second strip structure has a wedge-shaped tapering structure tapering away from the central axis. Thus, the structural integrity of the optical lens element on each strip structure can be precisely controlled.

[0126] Each third strip structure has a wedge-shaped tapering structure tapering away from the central axis. Thus, the structural integrity of the optical lens element on each strip structure can be precisely controlled.

[0127] The length of the second strip-shaped structure portion in the direction of the central axis is L, and the length of the second strip-shaped structure portion in the direction from one of the two end portions to the other is W, which satisfies the following condition: 0.10 < L / W < 1.10. Thereby, more efficient processing conditions are provided. Furthermore, it can satisfy the following condition: 0.15 < L / W < 0.85. Thereby, it can further ensure that the shrinkage reduction zone has a sufficient area range that can be covered by the second strip-shaped structure portion.

[0128] The first strip-shaped structure portion forms a first included angle with the central axis, and the angle of the first included angle is θ1, which satisfies the following condition: 0 degrees ≤ θ1 ≤ 45 degrees. Thereby, the risk of damage to the first strip-shaped structure during assembly can be reduced. Furthermore, it can satisfy the following condition: 0 degrees ≤ θ1 ≤ 25 degrees. Thereby, it is beneficial for the first strip-shaped structure to extend a sufficient length in the direction of the central axis and provide a release angle of the outer diameter surface.

[0129] The present disclosure provides an optical lens element having a central axis, comprising a first side surface, a second side surface, and an outer diameter surface. The central axis passes through the first side surface, which comprises a first optical zone and a first peripheral zone in sequence in a direction away from the central axis. The central axis passes through a center of the first optical zone. The first peripheral zone is adjacent to the first optical zone. The first side surface and the second side surface are disposed opposite to each other along the central axis, and the second side surface comprises a second optical zone and a second peripheral zone in sequence in a direction away from the central axis. The central axis passes through a center of the second optical zone. The second peripheral zone is adjacent to the second optical zone. The outer diameter surface is disposed between the first side surface and the second side surface, and the outer diameter surface is farther away from the central axis than the first side surface and the second side surface. The outer diameter surface comprises an arc-shaped zone and a tapered zone. The arc-shaped zone forms an arc shape with the central axis as a center and has two arc-shaped ends. The arc-shaped zone comprises a first strip structure part having a plurality of first strip structures extending from the first side surface to the second side surface and arranged around the central axis along the arc-shaped zone. The tapered zone extends in a direction around the central axis and has two end portions. The two end portions of the tapered zone are respectively disposed corresponding to the two arc-shaped ends of the arc-shaped zone. The tapered zone is closer to the central axis than the arc-shaped zone. The tapered zone comprises a second strip structure part having a plurality of second strip structures extending from the first side surface to the second side surface and arranged from one of the two end portions to the other. The outer diameter surface can further comprise a transition zone disposed between the two arc-shaped ends and the two end portions and connecting the tapered zone and the arc-shaped zone. The transition zone comprises a third strip structure part having at least two third strip structures extending from the first side surface to the second side surface, and each third strip structure has an extension line converging to a point. Thus, the present disclosure provides an optical lens element with a strip structure disposed on the outer diameter surface, provides a non-axially symmetric processing technology in processing and manufacturing, and reduces the probability of stray light generated on the outer diameter surface. The arrangement and configuration relationship of the first strip structure part and the second strip structure part can provide the manufacturability of a mold, and the third strip structure part of the transition zone can match the first strip structure part and the second strip structure part to provide structural matching.

[0130] Each first strip structure and each second strip structure has a wedge-shaped tapered structure tapering away from the central axis. Thus, the structural integrity of the optical lens element on each strip structure can be precisely controlled.

[0131] Each third strip structure has a wedge-shaped tapered structure tapering away from the central axis. Thus, the structural integrity of the optical lens element on each strip structure can be precisely controlled.

[0132] The first strip-shaped structure forms a first angle with the central axis, denoted by θ1, which satisfies the condition: 0 degrees ≤ θ1 ≤ 45 degrees. This reduces the risk of damage during assembly of the first strip-shaped structure. Furthermore, it satisfies the condition: 0 degrees ≤ θ1 ≤ 25 degrees. This allows the first strip-shaped structure to extend sufficiently in the direction of the central axis and provides a release angle for the outer diameter surface.

[0133] The second strip-shaped structure forms a second angle with the central axis, the angle being θ2, which satisfies the following condition: 0 degrees ≤ θ2 ≤ 45 degrees. This reduces the risk of damage to the second strip-shaped structure during assembly. Furthermore, it satisfies the following condition: 0 degrees ≤ θ2 ≤ 25 degrees. This allows the second strip-shaped structure to extend sufficiently in the direction of the central axis and provides a release angle for the outer diameter surface.

[0134] This disclosure provides an imaging lens comprising a plastic lens barrel and an imaging lens assembly, the imaging lens assembly being housed within the plastic lens barrel and including at least one of the aforementioned optical lens elements.

[0135] This disclosure provides an electronic device that includes the aforementioned imaging lens.

[0136] <First Implementation Method>

[0137] Please refer to FIG. 1A The diagram illustrates an imaging lens 10 according to the first embodiment of this disclosure. FIG. 1A As can be seen, the imaging lens 10 includes a plastic lens barrel 11 and an imaging lens group (not otherwise labeled), wherein the imaging lens group is housed within the plastic lens barrel 11. The imaging lens group includes an optical lens element 100 and at least one lens element 12, wherein the optical lens element 100 may be made of a transparent plastic material, and the lens element 12 may be configured as the optical lens element referred to in this disclosure or other refractive lens elements as required, and is not limited to the embodiments disclosed herein. In addition, the imaging lens 10 may also include a light-shielding plate 13 and a fixing ring 14, wherein the light-shielding plate 13 may overlap between the optical lens element 100 and the adjacent lens element 12, and the fixing ring 14 may be disposed on the image side of the lens element 12 on the image side for positioning the lens element 12, but other optical elements of different numbers and types may be provided as required, and this disclosure is not limited thereto.

[0138] Please refer to FIGS. 1B-1D ,in FIG. 1B Drawing according to FIG. 1A A three-dimensional schematic diagram of the optical lens element 100 in the first embodiment. FIG. 1C Drawing according to FIG. 1B A planar schematic diagram of the optical lens element 100. FIG. 1D Drawing according toFIG. 1B Figure 1 is a side view of an optical lens element 100. As can be seen, the optical lens element 100 comprises a first side surface 110, a second side surface 120 and an outer diameter surface 130. A central axis X passes through the first side surface 110 and the second side surface 120, the first side surface 110 and the second side surface 120 being arranged opposite to each other along the central axis X, the outer diameter surface 130 being arranged between the first side surface 110 and the second side surface 120 and being further away from the central axis X than the first side surface 110 and the second side surface 120. FIGS. 1B-1D

[0139] The first side surface 110 comprises, in order from the central axis X, a first optical zone 111 and a first peripheral zone 112. The central axis X passes through a center of the first optical zone 111. The first peripheral zone 112 is adjacent to the first optical zone 111. The second side surface 120 comprises, in order from the central axis X, a second optical zone 121 and a second peripheral zone 122. The central axis X passes through a center of the second optical zone 121. The second peripheral zone 122 is adjacent to the second optical zone 121.

[0140] The outer diameter surface 130 comprises an arcuate zone 131, a step-down zone 132 and a transition zone 133. The arcuate zone 131 forms an arc with the central axis X as a center and has two arcuate ends. The step-down zone 132 extends in a direction around the central axis X and has two end portions, the two end portions of the step-down zone 132 being arranged corresponding to the two arcuate ends of the arcuate zone 131 respectively, and the step-down zone 132 being closer to the central axis X than the arcuate zone 131. The transition zone 133 is arranged between the two arcuate ends and the two end portions and connects the step-down zone 132 and the arcuate zone 131. Specifically, the two end portions of the step-down zone 132 and the two arcuate ends of the arcuate zone 131 are arranged adjacent to each other through the transition zone 133 and form a step-down surface.

[0141] The arcuate zone 131 comprises a first strip structure part 1311 having a plurality of first strip structures (not labeled separately), the first strip structures extending from the first side surface 110 to the second side surface 120 and being arranged in a direction around the central axis X along the arcuate zone 131. The step-down zone 132 comprises a second strip structure part 1321 having a plurality of second strip structures (not labeled separately), the second strip structures extending from the first side surface 110 to the second side surface 120 and being arranged in a direction from one of the two end portions to the other. The transition zone 133 comprises a third strip structure part 1331 having two third strip structures (not labeled separately), the third strip structures extending from the first side surface 110 to the second side surface 120. FIG. 1B ​It is known that each first strip structure, each second strip structure and each third strip structure has a wedge taper structure tapering away from the central axis X. Furthermore, the end of each first strip structure, the end of each second strip structure and the end of each third strip structure are all sharp corners.

[0142] Please refer to FIGS. 1E-1G , wherein FIG. 1E is shown according to FIG. 1B the schematic diagram of the extension line L1 of the first strip structure, FIG. 1F is shown according to FIG. 1B the schematic diagram of the extension line L2 of the second strip structure, FIG. 1G is shown according to FIG. 1B the schematic diagram of the extension line L3 of the third strip structure. From FIG. 1E it is known that in the first strip structure part 1311, the extension line L1 of each first strip structure converges to a point P1 along a conical surface, wherein in the first embodiment of the first embodiment, the point P1 is located on the central axis X, but it is not limited thereto. From FIG. 1F it is known that in the second strip structure part 1321, the extension line L2 of each second strip structure does not converge in two extension directions along a plane, but the present disclosure is not limited thereto. From FIG. 1G it is known that in the third strip structure part 1331, the extension line L3 of each third strip structure can converge to a point P3, wherein in the first embodiment of the first embodiment, the point P3 deviates from the central axis X, in conjunction with FIG. 1E it is known that the third position to which the extension line L3 of each third strip structure converges to a third position (i.e. point P3) is different from the first position to which the extension line L1 of each first strip structure converges to a first position (i.e. point P1).

[0143] From FIG. 1D it is known that the second optical zone 121 has a concave part 1211, wherein the concave part 1211 is arranged corresponding to the first strip structure part 1311 and the second strip structure part 1321 in the direction away from the central axis X.

[0144] From FIG. 1B and FIG. 1C it is known that the outer diameter surface 130 can further include a material injection mark 134 arranged on the reduced area 132, and the material injection mark 134 is arranged adjacent to the second strip structure part 1321 along the central axis X.

[0145] Please refer to FIG. 1H and FIG. 1I , which respectively show FIG. 1B the schematic diagram of the parameters of the optical lens element 100 in FIG. 1H and FIG. 1IIn the first embodiment of the first implementation, the first strip structure 1311 forms a first angle with the central axis X, the angle of the first angle is θ1, the second strip structure 1321 forms a second angle with the central axis X, the angle of the second angle is θ2, the length of the second strip structure 1321 along the direction of the central axis X is L, the length of the second strip structure 1321 along one of the two ends to the other is W, the distance from the center of the one (in the first embodiment of the first implementation, it refers to the second optical zone 121) of the first optical zone 111 and the second optical zone 121 with the concave part 1211 to the edge along the direction of the central axis X is S, the distance from the center of the first optical zone 111 to the center of the second optical zone 121 is CT, which satisfies the values in Table 1A below.

[0146]

[0147] Please refer to FIG. 1J , which shows a partial enlarged schematic view of the optical lens element 100a according to FIG. 1A the second embodiment of the first implementation. From FIG. 1J It can be seen that the optical lens element 100a of the second embodiment of the first implementation is different from the optical lens element 100 of the first embodiment in that the third strip structure 1331a of the optical lens element 100a of the second embodiment has four third strip structures (not labeled separately), and each two third strip structures are located between the first strip structure 1311a and the second strip structure 1321a.

[0148] The other structural features, parameters and configurations of the optical lens element 100a of the second embodiment can be the same as or similar to those of the optical lens element 100 of the first embodiment, and will not be described here.

[0149] Please refer to FIG. 1K , which shows a partial enlarged schematic view of the optical lens element 100b according to FIG. 1A the third embodiment of the first implementation. From FIG. 1K It can be seen that the optical lens element 100b of the third embodiment of the first implementation is different from the optical lens element 100 of the first embodiment in that the third strip structure 1331b of the optical lens element 100b of the third embodiment has a third strip structure (not labeled separately), and each third strip structure is located between the first strip structure 1311b and the second strip structure 1321b, wherein each third strip structure is a surface structure extending from the first side 110b to the second side 120b.

[0150] The other structural features, parameters and configurations of the optical lens element 100b of the third embodiment can be the same as or similar to those of the optical lens element 100 of the first embodiment, and will not be described here.

[0151] Please refer to the following: FIG. 1L Its drawing is based on FIG. 1A A partially enlarged schematic diagram of the optical lens element 100c in the fourth embodiment of the first embodiment. FIG. 1L It can be seen that the difference between the optical lens element 100c of the fourth embodiment in the first embodiment and the optical lens element 100 of the first embodiment is that, in the optical lens element 100c of the fourth embodiment, the third strip structure portion 1331c has a third strip structure (not otherwise labeled), and each third strip structure is located between the first strip structure portion 1311c and the second strip structure portion 1321c, wherein the thickness of each third strip structure is less than that of the first strip structure and the second strip structure.

[0152] Other structural features, parameters and configurations of the optical lens element 100c in the fourth embodiment are the same as or similar to those of the optical lens element 100 in the first embodiment, and will not be described again here.

[0153] Please refer to the following: FIG. 1M Its drawing is based on FIG. 1A A partially enlarged schematic diagram of the optical lens element 100d in the fifth embodiment of the first embodiment. FIG. 1M It can be seen that the difference between the optical lens element 100d of the fifth embodiment in the first embodiment and the optical lens element 100 of the first embodiment is that, in the optical lens element 100d of the fifth embodiment, the end of each first strip structure of the first strip structure portion 1311d, the end of each second strip structure of the second strip structure portion 1321d, and the end of each third strip structure of the third strip structure portion 1331d are all rounded.

[0154] Other structural features, parameters and configurations of the optical lens element 100d in the fifth embodiment are the same as or similar to those of the optical lens element 100 in the first embodiment, and will not be described again here.

[0155] <Second Implementation Method>

[0156] Please refer to FIG. 2A The diagram illustrates an imaging lens 20 according to the second embodiment of this disclosure. FIG. 2AAs can be seen, the imaging lens 20 includes a plastic lens barrel 21 and an imaging lens group (not otherwise labeled), wherein the imaging lens group is housed within the plastic lens barrel 21. The imaging lens group includes an optical lens element 200 and at least one lens element 22, wherein the optical lens element 200 may be made of a transparent plastic material, and the lens element 22 may be configured as the optical lens element referred to in this disclosure or other refractive lens elements as required, and is not limited to the embodiments disclosed herein. In addition, the imaging lens 20 may also include a light-shielding plate 23, a spacer ring 25, and a fixing ring 24, wherein the spacer ring 25 and the light-shielding plate 23 may overlap between the lens element 22 and the optical lens element 200 along the central axis X from the object side to the image side of the imaging lens 20, and the fixing ring 24 may be disposed on the image side of the optical lens element 200 for positioning the optical lens element 200, but other optical elements of different numbers and types may be provided as required, and this disclosure is not limited thereto.

[0157] Please refer to FIGS. 2B-2D ,in FIG. 2B Drawing according to FIG. 2A A three-dimensional schematic diagram of the optical lens element 200 of the first embodiment in the second embodiment. FIG. 2C Drawing according to FIG. 2B A planar schematic diagram of the optical lens element 200. FIG. 2D Drawing according to FIG. 2B Side view of the optical lens element 200. FIGS. 2B-2D It is known that the optical lens element 200 includes a first side surface 210, a second side surface 220, and an outer diameter surface 230. The central axis X passes through the first side surface 210 and the second side surface 220, and the first side surface 210 and the second side surface 220 are arranged opposite to each other along the central axis X. The outer diameter surface 230 is disposed between the first side surface 210 and the second side surface 220, and the outer diameter surface 230 is farther away from the central axis X than the first side surface 210 and the second side surface 220.

[0158] The first side surface 210 sequentially includes a first optical region 211 and a first peripheral region 212 along a direction away from the central axis X. The central axis X passes through a center of the first optical region 211. The first peripheral region 212 is adjacent to the first optical region 211. The second side surface 220 sequentially includes a second optical region 221 and a second peripheral region 222 along a direction away from the central axis X. The central axis X passes through a center of the second optical region 221. The second peripheral region 222 is adjacent to the second optical region 221.

[0159] The outer diameter surface 230 comprises an arc-shaped region 231, a tapered region 232, and a transition region 233. The arc-shaped region 231 is formed as an arc with the center axis X as the center and has two arc-shaped ends. The tapered region 232 extends along a direction around the center axis X and has two end portions, the two end portions of the tapered region 232 are respectively arranged corresponding to the two arc-shaped ends of the arc-shaped region 231, and the tapered region 232 is closer to the center axis X than the arc-shaped region 231. The transition region 233 is arranged between the two arc-shaped ends and the two end portions and connects the tapered region 232 and the arc-shaped region 231. Specifically, the two end portions of the tapered region 232 and the two arc-shaped ends of the arc-shaped region 231 are adjacently arranged through the transition region 233 and form a tapered surface.

[0160] The arc-shaped region 231 comprises a first strip-shaped structure part 2311 having a plurality of first strip-shaped structures (not labeled separately), which extend from the first side surface 210 to the second side surface 220 and are arranged along the arc-shaped region 231 around the center axis X. The tapered region 232 comprises a second strip-shaped structure part 2321 having a plurality of second strip-shaped structures (not labeled separately), which extend from the first side surface 210 to the second side surface 220 and are arranged along one of the two end portions to the other. The transition region 233 comprises a third strip-shaped structure part 2331 having two third strip-shaped structures (not labeled separately), which extend from the first side surface 210 to the second side surface 220. From FIG. 2B It can be seen that each first strip-shaped structure, each second strip-shaped structure, and each third strip-shaped structure has a wedge-shaped tapered structure that tapers away from the center axis X. Furthermore, the tip of each first strip-shaped structure, the tip of each second strip-shaped structure, and the tip of each third strip-shaped structure are all sharp corners.

[0161] Please refer to FIGS. 2E-2G , wherein FIG. 2E is shown according to FIG. 2B a schematic view of the extension line L1 of the first strip-shaped structure, FIG. 2F is shown according to FIG. 2B a schematic view of the extension line L2 of the second strip-shaped structure, FIG. 2G is shown according to FIG. 2B a schematic view of the extension line L3 of the third strip-shaped structure. From FIG. 2E It can be seen that in the first strip-shaped structure part 2311, the extension line L1 of each first strip-shaped structure converges along a conical surface to a point P1, wherein in the first embodiment of the second embodiment, the point P1 is located on the center axis X, but this is not limited. From FIG. 2F It can be seen that in the second strip-shaped structure part 2321, the extension line L2 of each second strip-shaped structure does not converge in two extension directions of a plane, but this is not limited by the present disclosure. From FIG. 2GIt can be seen that in the third strip structure 2331, the extension lines L3 of each third strip structure can converge to a point P3, wherein the point P3 in the first embodiment of the second embodiment is deviated from the central axis X, in conjunction with FIG. 2E It can be seen that the third position where the extension line L3 of each third strip structure converges to a third position (i.e., point P3) is different from the first position where the extension line L1 of each first strip structure converges to a first position (i.e., point P1).

[0162] Depend on FIG. 2D It is known that the first optical region 211 has a concave surface 2111, wherein the concave surface 2111 is disposed corresponding to the first strip structure portion 2311 and the second strip structure portion 2321 in a direction away from the central axis X.

[0163] Please refer to the following: FIG. 2H as well as FIG. 2I They are drawn respectively FIG. 2B A schematic diagram showing the parameters of the optical lens element 200. (From...) FIG. 2H as well as FIG. 2I As can be seen, in the first embodiment of the second embodiment, the first strip structure 2311 forms a first angle with the central axis X, the angle of the first angle being θ1; the second strip structure 2321 forms a second angle with the central axis X, the angle of the second angle being θ2; the length of the second strip structure 2321 along the direction of the central axis X is L; the length of the second strip structure 2321 from one end to the other is W; the distance from the center to the edge of the concave portion 2111 in the first optical region 211 and the second optical region 221 (in the first embodiment of the second embodiment, this refers to the first optical region 211) along the direction of the central axis X is S; and the distance from the center of the first optical region 211 to the center of the second optical region 221 is CT, which satisfy the values ​​in Table 2A below.

[0164]

[0165] <Third Implementation Method>

[0166] Please refer to FIG. 3A The diagram illustrates an imaging lens 30 according to the third embodiment of this disclosure. FIG. 3AAs can be seen, the imaging lens 30 includes a plastic lens barrel 31 and an imaging lens group (not otherwise labeled), wherein the imaging lens group is housed within the plastic lens barrel 31. The imaging lens group includes an optical lens element 300 and two lens elements 32a and 32b, wherein the optical lens element 300 may be made of a transparent plastic material, and the lens elements 32a and 32b may be configured as the optical lens element referred to in this disclosure or other refractive lens elements as required, and are not limited to the embodiments disclosed herein. The lens elements 32a, 300, and 32b are disposed along the central axis X from the object side to the image side of the imaging lens 20 within the plastic lens barrel 31. In addition, the imaging lens 30 may be provided with other optical elements of different numbers and types as required, and this disclosure is not limited thereto.

[0167] Please refer to FIGS. 3B-3D ,in FIG. 3B Drawing according to FIG. 3A A three-dimensional schematic diagram of the optical lens element 300 of the first embodiment in the third embodiment. FIG. 3C Drawing according to FIG. 3B A planar schematic diagram of the optical lens element 300. FIG. 3D Drawing according to FIG. 3B Side view of the optical lens element 300. FIGS. 3B-3D It is known that the optical lens element 300 includes a first side surface 310, a second side surface 320, and an outer diameter surface 330. The central axis X passes through the first side surface 310 and the second side surface 320, and the first side surface 310 and the second side surface 320 are arranged opposite each other along the central axis X. The outer diameter surface 330 is disposed between the first side surface 310 and the second side surface 320, and the outer diameter surface 330 is farther away from the central axis X than the first side surface 310 and the second side surface 320.

[0168] The first side surface 310 sequentially includes a first optical region 311 and a first peripheral region 312 along a direction away from the central axis X. The central axis X passes through a center of the first optical region 311. The first peripheral region 312 is adjacent to the first optical region 311. The second side surface 320 sequentially includes a second optical region 321 and a second peripheral region 322 along a direction away from the central axis X. The central axis X passes through a center of the second optical region 321. The second peripheral region 322 is adjacent to the second optical region 321.

[0169] The outer diameter surface 330 includes an arc-shaped region 331, a reduced-diameter region 332, and a transition region 333. The arc-shaped region 331 forms an arc around the central axis X and has two arc-shaped ends. The reduced-diameter region 332 extends in a direction surrounding the central axis X and has two end points, which are respectively positioned to correspond to the two arc-shaped ends of the arc-shaped region 331, and the reduced-diameter region 332 is closer to the central axis X than the arc-shaped region 331. The transition region 333 is positioned between the two arc-shaped ends and the two end points, connecting the reduced-diameter region 332 and the arc-shaped region 331. Specifically, the two end points of the reduced-diameter region 332 and the two arc-shaped ends of the arc-shaped region 331 are adjacent to each other through the transition region 333 and form a reduced surface.

[0170] It must be stated that, FIG. 3B The optical lens element 300 is provided with a reduction surface. The reduction surface will divide the originally complete and continuous arc area 331 into three segments, but it can still be regarded as a continuous arc formed with the central axis X as the center.

[0171] The arc-shaped region 331 includes a first strip-shaped structure portion 3311, which has multiple first strip-shaped structures (not otherwise labeled) extending from the first side surface 310 to the second side surface 320, and the first strip-shaped structures are arranged along the direction of the arc-shaped region 331 around the central axis X. The tapered region 332 includes a second strip-shaped structure portion 3321, which has multiple second strip-shaped structures (not otherwise labeled) extending from the first side surface 310 to the second side surface 320, and the second strip-shaped structures are arranged from one end to the other. The turning region 333 includes a third strip-shaped structure portion 3331, which has four third strip-shaped structures (not otherwise labeled) extending from the first side surface 310 to the second side surface 320. FIG. 3B It can be seen that each of the first, second, and third strip structures has a wedge-shaped tapering structure, which tapers away from the central axis X. Furthermore, the ends of each of the first, second, and third strip structures are all sharp angles.

[0172] Depend on FIG. 3D It is known that the first optical region 311 has a concave surface 3111, wherein the concave surface 3111 is disposed in a direction away from the central axis X, corresponding to the first strip structure portion 3311 and the second strip structure portion 3321.

[0173] Please refer to the following: FIG. 3E as well as FIG. 3F They are drawn respectively FIG. 3B A schematic diagram showing the parameters of the optical lens element 300. (From...) FIG. 3E as well as FIG. 3FAs can be seen, in the first embodiment of the third embodiment, the first strip structure portion 3311 forms a first angle with the central axis X, the angle of the first angle being θ1 and θ1'; the second strip structure portion 3321 forms a second angle with the central axis X, the angle of the second angle being θ2 and θ2'; the length of the second strip structure portion 3321 along the direction of the central axis X is L; the length of the second strip structure portion 3321 from one end to the other is W; the distance from the center to the edge of the portion of the first optical region 311 and the second optical region 321 having the concave portion 3111 (in the first embodiment of the third embodiment, this refers to the first optical region 311) along the direction of the central axis X is S; and the distance from the center of the first optical region 311 to the center of the second optical region 321 is CT, which satisfies the values ​​in Table 3A below.

[0174]

[0175] It must be noted that in the first embodiment of the third implementation, there are two angle values ​​for the first included angle, namely angles θ1 and θ1', but their definitions are the same as those for angle θ1 as referred to throughout this disclosure; there are two angle values ​​for the second included angle, namely angles θ2 and θ2', but their definitions are the same as those for angle θ2 as referred to throughout this disclosure.

[0176] <Fourth Implementation Method>

[0177] Please refer to FIG. 4A and FIG. 4B ,in FIG. 4A A schematic diagram of the electronic device 40 according to the fourth embodiment of this disclosure is shown. FIG. 4B Drawing according to FIG. 4A Another schematic diagram of the electronic device 40 in the fourth embodiment. FIG. 4A and FIG. 4B As can be seen, the electronic device 40 is a smartphone. The electronic device 40 includes multiple camera modules and a user interface 46. Each camera module may include an imaging lens from any embodiment of the first to third embodiments described above, but the present disclosure is not limited thereto. Furthermore, the camera modules are a high-pixel camera module 41, an ultra-wide-angle camera module 42, and dual telephoto camera modules 43 and 44, and the user interface 46 is a touch screen, but it is not limited thereto.

[0178] The user enters the shooting mode through the user interface 46, which displays the screen and allows manual adjustment of the shooting angle to switch between different camera modules. At this time, the camera module focuses the imaging light onto the electronic image sensor and outputs electronic signals related to the image to the image signal processor (ISP) 45.

[0179] By FIG. 4A It is known that, in response to the camera specifications of the electronic device 40, the electronic device 40 can further include an optical anti-shake component (not shown in the figure), and further, the electronic device 40 can further include at least one focusing auxiliary module (not shown in the figure) and at least one sensing element (not shown in the figure). The focusing auxiliary module can be a flash module that compensates for color temperature, 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 40 and the play of the optical anti-shake component, to obtain good imaging quality, which helps the electronic device 40 according to the present disclosure to have multiple modes of shooting functions, such as optimized selfie, low light source HDR (High Dynamic Range, high dynamic range imaging), high resolution 4K (4K Resolution) video recording, etc. In addition, the user can directly view the shooting picture of the camera on the user interface 46 and manually operate the field of view on the user interface 46 to achieve the automatic focusing function of what you see is what you get.

[0180] Further, the camera module, the optical anti-shake component, the sensing element and the focusing auxiliary module can be arranged on a flexible printed circuit board (FPC) (not shown in the figure), and connected to related elements such as the imaging signal processing element 45 through a connector (not shown in the figure) to perform the shooting process. The current electronic device such as a smart phone has a trend of being light and thin, and the camera module and related elements are arranged on the flexible printed circuit board, and then 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, and also make the automatic focusing function of the camera module of the electronic device more flexible through the touch screen of the electronic device. In the fourth embodiment, the electronic device 40 can include a plurality of sensing elements and a plurality of focusing auxiliary modules, and the sensing elements and the focusing auxiliary modules are arranged on the flexible printed circuit board and at least one other flexible printed circuit board (not shown in the figure), and are electrically connected to related elements such as the imaging signal processing element 45 through corresponding connectors to perform the shooting process. In other embodiments (not shown in the figure), the sensing element and the auxiliary optical element can also be arranged on the mainboard of the electronic device or other forms of carrier boards according to the mechanism design and circuit layout requirements.

[0181] In addition, the electronic device 40 can further include, but is not limited to, a display unit (Display), a control unit (Control Unit), a storage unit (Storage Unit), a random access memory (RAM), a read-only memory (ROM), or a combination thereof.

[0182] FIG. 4C Drawing according to FIG. 4A A schematic diagram of an image captured by the electronic device 40 in the fourth embodiment. FIG. 4C It can be seen that the ultra-wide-angle camera module 42 can capture images of a larger range and has the function of capturing more scenery.

[0183] FIG. 4D Drawing according to FIG. 4A A schematic diagram of another image captured by the electronic device 40 in the fourth embodiment. FIG. 4D It can be seen that the high-pixel camera module 41 can capture images within a certain range and also has high pixel count, with high resolution and low distortion.

[0184] FIG. 4E Drawing according to FIG. 4A A schematic diagram of another image captured by the electronic device 40 in the fourth embodiment. FIG. 4E It can be seen that the telephoto camera modules 43 and 44 have high magnification functions, which can capture distant images and magnify them to a high degree.

[0185] Depend on FIGS. 4C-4E It is understood that by using camera modules with different focal lengths for framing and combining them with image processing technology, the electronic device 40 can achieve the function of zooming.

[0186] <Fifth Implementation>

[0187] Please refer to FIG. 5 The diagram illustrates the electronic device 50 according to the fifth embodiment of this disclosure. FIG. 5 As can be seen, the electronic device 50 is a smartphone, and the electronic device 50 includes multiple camera modules, wherein each camera module may include an imaging lens of any embodiment of any of the first to third embodiments described above, but the present disclosure is not limited thereto. Furthermore, the camera modules are ultra-wide-angle camera modules 51, 52, wide-angle camera modules 53, 54, telephoto camera modules 55, 56, 57, 58 and TOF module (Time-Of-Flight) 59, and the TOF module 59 may also be other types of camera modules, and is not limited to this configuration.

[0188] Furthermore, telephoto camera modules 57 and 58 have the function of reversing the optical path, but this disclosure is not limited to this.

[0189] According to the camera specifications of the electronic device 50, the electronic device 50 may further include an optical anti-shake component (not shown in the figure). Further, the electronic device 50 may further include at least one pair of focus assist modules (not shown in the figure) and at least one sensing element (not shown in the figure). The focus assist module may be a flash module 501 for compensating color temperature, an infrared ranging element, a laser focus module, etc. The sensing element may have the function of sensing physical momentum and actuating energy, such as an accelerometer, a gyroscope, a Hall Effect Element, to sense the shaking and jitter applied by the user's hand or the external environment, thereby facilitating the automatic focus function of the camera module configuration in the electronic device 50 and the performance of the optical anti-shake component, so as to obtain good imaging quality, and helping the electronic device 50 according to the present disclosure to have various shooting functions, such as optimized selfies, low-light HDR (High Dynamic Range, high dynamic range imaging), high-resolution 4K (4K Resolution) video recording, etc.

[0190] In addition, the structures and configuration relationships of the remaining components in the fifth embodiment and the fourth embodiment are the same, and will not be described in detail here.

[0191] <Sixth Embodiment>

[0192] Please refer to FIGS. 6A-6C , wherein FIG. 6A FIG. shows a schematic diagram of the vehicle tool 60 according to the sixth embodiment of the present disclosure, FIG. 6B FIG. shows FIG. 6A Another schematic diagram of the vehicle tool 60 according to the sixth embodiment, FIG. 6C FIG. shows FIG. 6A Another schematic diagram of the vehicle tool 60 according to the sixth embodiment. As can be seen from FIGS. 6A-6C , the vehicle tool 60 includes a plurality of camera modules 61. In the sixth embodiment, the number of camera modules 61 is six, and the camera module 61 may include an imaging lens of any one of the embodiments in the foregoing first embodiment to the third embodiment, but is not limited thereto.

[0193] As can be seen from FIG. 6A and <s FIG. 6B , the camera module 61 is a vehicle-mounted camera module, and two of the camera modules 61 are respectively located below the left and right rearview mirrors and are used to capture image information of a viewing angle A. Specifically, the viewing angle A may satisfy the following conditions: 40 degrees < A < 90 degrees. Thereby, image information within the range of the left and right adjacent lanes can be captured.

[0194] As can be seen from FIG. 6BIt is known that the other two camera modules 61 can be arranged in the space inside the vehicle tool 60. Specifically, the two camera modules 61 are arranged near the inside rearview mirror and near the rear window, respectively. In addition, the camera modules 61 can also be arranged on the non-mirror surface of the left and right rearview mirrors of the vehicle tool 60, but are not limited thereto.

[0195] By FIG. 6C It is known that the other two camera modules 61 can be arranged at the front and rear ends of the vehicle tool 60. By arranging the camera modules 61 at the front and rear ends of the vehicle tool 60 and below the left and right rearview mirrors, the driver can obtain external space information outside the cockpit, such as external space information I1, I2, I3, I4, but is not limited thereto. In this way, more viewing angles can be provided to reduce dead angles, thereby helping to improve driving safety. In addition, by arranging the camera modules 61 around the vehicle tool 60, it is helpful to identify road condition information outside the vehicle tool 60 to facilitate the function of automatic auxiliary driving.

[0196] Although the present disclosure has been disclosed as above by way of examples, it is not intended to limit the present disclosure, and any person skilled in the art can make some changes and modifications without departing from the spirit and scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the appended claims.

Claims

1. An optical lens element, characterized in that, It has a central axis and includes: A first side surface, through which the central axis passes, the first side surface comprising, in sequence along a direction away from the central axis: A first optical region, the central axis passing through a center of the first optical region; and A first peripheral area, which is adjacent to the first optical area; A second side surface, wherein the first side surface and the second side surface are disposed opposite each other along the central axis, and the second side surface comprises, in sequence along a direction away from the central axis: A second optical region, the central axis passing through a center of the second optical region; and A second peripheral area, the second peripheral area being adjacent to the second optical area; and An outer diameter surface is disposed between the first side surface and the second side surface, and the outer diameter surface is farther away from the central axis than the first side surface and the second side surface. The outer diameter surface includes: An arc-shaped region is formed around the central axis and has two arc-shaped ends. The arc-shaped region includes a first strip-shaped structure portion, which has a plurality of first strip-shaped structures extending from the first side side to the second side side, and the plurality of first strip-shaped structures are arranged around the central axis along the arc-shaped region. as well as A reduced region extends along a direction surrounding the central axis and has two ends, the two ends of the reduced region being respectively disposed corresponding to the two arc-shaped ends of the arc-shaped region, and the reduced region being closer to the central axis than the arc-shaped region. The reduced region includes a second strip-shaped structure portion, the second strip-shaped structure portion having a plurality of second strip-shaped structures extending from the first side to the second side, and the plurality of second strip-shaped structures being arranged along one of the two ends to the other. In this configuration, an extension line of each of the plurality of first strip structures converges at a point along a conical surface, while an extension line of each of the plurality of second strip structures does not converge along two extension directions of a plane.

2. The optical lens element as described in claim 1, characterized in that, Each of the plurality of first strip structures and each of the plurality of second strip structures has a wedge-shaped tapering structure that tapers away from the central axis.

3. The optical lens element as described in claim 1, characterized in that, The outer diameter surface also includes: A filling mark is provided on the shrinkage area, and the filling mark is provided adjacent to the second strip structure part along the central axis direction.

4. The optical lens element as claimed in claim 1, characterized in that, The first strip-shaped structure forms a first angle with the central axis, the angle of which is θ1, and satisfies the following condition: 0 degrees ≤ θ1 ≤ 45 degrees.

5. The optical lens element as described in claim 4, characterized in that, The first strip-shaped structure forms a first angle with the central axis, and the angle of the first angle is θ1, which satisfies the following condition: 0 degrees ≤ θ1 ≤ 25 degrees.

6. The optical lens element as claimed in claim 1, characterized in that, The second strip-shaped structure forms a second angle with the central axis, the angle of which is θ2, and satisfies the following condition: 0 degrees ≤ θ2 ≤ 45 degrees.

7. The optical lens element as claimed in claim 6, characterized in that, The second strip-shaped structure forms a second angle with the central axis, and the angle of the second angle is θ2, which satisfies the following condition: 0 degrees ≤ θ2 ≤ 25 degrees.

8. The optical lens element as claimed in claim 1, characterized in that, The length of the second strip-shaped structure along the central axis is L, and the length of the second strip-shaped structure along one end to the other is W, satisfying the following condition: 0.10 <L / W<1.10。 9. The optical lens element as claimed in claim 8, characterized in that, The length of the second strip-shaped structure along the central axis is L, and the length of the second strip-shaped structure along one end to the other is W, satisfying the following condition: 0.15 <L / W<0.85。 10. The optical lens element as claimed in claim 1, characterized in that, One of the first optical region and the second optical region has a concave surface.

11. The optical lens element as claimed in claim 10, characterized in that, The concave portion is disposed in a direction away from the central axis, corresponding to the first strip structure portion and the second strip structure portion.

12. The optical lens element as claimed in claim 10, characterized in that, The distance from the center of the concave portion of the first optical region to an edge along the central axis is S, and the distance from the center of the first optical region to the center of the second optical region is CT, satisfying the following condition: 0.6 The distance from the center to the edge of the concave portion of the first optical region and the second optical region along the central axis is S, and the distance from the center of the first optical region to the center of the second optical region is CT, satisfying the following condition:

13. The optical lens element as claimed in claim 12, characterized in that, Version 0.7 includes: A plastic lens barrel; and 14. An imaging lens, characterized in that, An imaging lens assembly is housed within the plastic lens barrel and includes at least one optical lens element as described in claim 1. Include: The imaging lens as described in claim 14.

15. An electronic device, characterized in that, It has a central axis and includes: A first side surface, through which the central axis passes, the first side surface comprising, in sequence along a direction away from the central axis:

16. An optical lens element, characterized in that, A first optical region, the central axis passing through a center of the first optical region; and A first peripheral area, which is adjacent to the first optical area; A second side surface, wherein the first side surface and the second side surface are disposed opposite each other along the central axis, and the second side surface comprises, in sequence along a direction away from the central axis: A second optical region, the central axis passing through a center of the second optical region; and A second peripheral area, the second peripheral area being adjacent to the second optical area; and An outer diameter surface is disposed between the first side surface and the second side surface, and the outer diameter surface is farther away from the central axis than the first side surface and the second side surface. The outer diameter surface includes: An arc-shaped region is formed around the central axis and has two arc-shaped ends. The arc-shaped region includes a first strip-shaped structure portion, which has a plurality of first strip-shaped structures extending from the first side side to the second side side, and the plurality of first strip-shaped structures are arranged around the central axis along the arc-shaped region. as well as A reduced region extends along a direction surrounding the central axis and has two ends, the two ends of the reduced region being respectively disposed corresponding to the two arc-shaped ends of the arc-shaped region, and the reduced region being closer to the central axis than the arc-shaped region. The reduced region includes a second strip-shaped structure portion, the second strip-shaped structure portion having a plurality of second strip-shaped structures extending from the first side to the second side, and the plurality of second strip-shaped structures being arranged along one of the two ends to the other. The outer diameter surface also includes a sprue, which is located on the shrinkage area and is adjacent to the second strip structure along the central axis. ​ ​ 17. The optical lens element as claimed in claim 16, characterized in that, Each of the plurality of first strip structures and each of the plurality of second strip structures has a wedge-shaped tapering structure that tapers away from the central axis.

18. The optical lens element as claimed in claim 16, characterized in that, The second strip-shaped structure forms a second angle with the central axis, the angle of which is θ2, and satisfies the following condition: 0 degrees ≤ θ2 ≤ 45 degrees.

19. The optical lens element as claimed in claim 18, characterized in that, The second strip-shaped structure forms a second angle with the central axis, and the angle of the second angle is θ2, which satisfies the following condition: 0 degrees ≤ θ2 ≤ 25 degrees.

20. The optical lens element as claimed in claim 16, characterized in that, The length of the second strip-shaped structure along the central axis is L, and the length of the second strip-shaped structure along one end to the other is W, satisfying the following condition: 0.10 <L / W<1.10。 21. The optical lens element as claimed in claim 20, characterized in that, The length of the second strip-shaped structure along the central axis is L, and the length of the second strip-shaped structure along one end to the other is W, satisfying the following condition: 0.15 <L / W<0.85。 22. The optical lens element as claimed in claim 16, characterized in that, One of the first optical region and the second optical region has a concave surface.

23. The optical lens element as claimed in claim 22, characterized in that, The concave portion is disposed in a direction away from the central axis, corresponding to the first strip structure portion and the second strip structure portion.

24. The optical lens element as claimed in claim 22, characterized in that, The distance from the center of the concave portion of the first optical region to an edge along the central axis is S, and the distance from the center of the first optical region to the center of the second optical region is CT, satisfying the following condition: 0.6 The distance from the center to the edge of the concave portion of the first optical region and the second optical region along the central axis is S, and the distance from the center of the first optical region to the center of the second optical region is CT, satisfying the following condition:

25. The optical lens element as claimed in claim 24, characterized in that, 0.7 has a central axis and includes: A first side surface, through which the central axis passes, the first side surface comprising, in sequence along a direction away from the central axis:

26. An optical lens element, characterized in that, A first optical region, the central axis passing through a center of the first optical region; and A first peripheral area, which is adjacent to the first optical area; A second side surface, wherein the first side surface and the second side surface are disposed opposite each other along the central axis, and the second side surface comprises, in sequence along a direction away from the central axis: A second optical region, the central axis passing through a center of the second optical region; and A second peripheral area, the second peripheral area being adjacent to the second optical area; and An outer diameter surface is disposed between the first side surface and the second side surface, and the outer diameter surface is farther away from the central axis than the first side surface and the second side surface. The outer diameter surface includes: An arc-shaped region is formed around the central axis and has two arc-shaped ends. The arc-shaped region includes a first strip-shaped structure portion, which has a plurality of first strip-shaped structures extending from the first side side to the second side side, and the plurality of first strip-shaped structures are arranged around the central axis along the arc-shaped region. as well as ​ ​ A reduced region extends along a direction surrounding the central axis and has two ends, the two ends of the reduced region being respectively disposed corresponding to the two arc-shaped ends of the arc-shaped region, and the reduced region being closer to the central axis than the arc-shaped region. The reduced region includes a second strip-shaped structure portion, the second strip-shaped structure portion having a plurality of second strip-shaped structures extending from the first side to the second side, and the plurality of second strip-shaped structures being arranged along one of the two ends to the other. The outer diameter surface further includes a turning area, which is located between the two arc-shaped ends and the two end points, and connects the contraction area and the arc-shaped area. The turning area includes a third strip-shaped structure portion, which has at least two third strip-shaped structures extending from the first side to the second side. The third position where the extension lines of each of the at least two third strip-shaped structures converge at a third position is different from the first position where the extension lines of each of the plurality of first strip-shaped structures converge at a first position.

27. The optical lens element as claimed in claim 26, characterized in that, Each of the plurality of first strip structures and each of the plurality of second strip structures has a wedge-shaped tapering structure that tapers away from the central axis.

28. The optical lens element as claimed in claim 26, characterized in that, Each of the at least two third strip structures has a wedge-shaped tapering structure that tapers away from the central axis.

29. The optical lens element as claimed in claim 26, characterized in that, The length of the second strip-shaped structure along the central axis is L, and the length of the second strip-shaped structure along one end to the other is W, satisfying the following condition: 0.10 <L / W<1.10。 30. The optical lens element as claimed in claim 29, characterized in that, The length of the second strip-shaped structure along the central axis is L, and the length of the second strip-shaped structure along one end to the other is W, satisfying the following condition: 0.15 <L / W<0.85。 31. The optical lens element as claimed in claim 26, characterized in that, The first strip-shaped structure forms a first angle with the central axis, the angle of which is θ1, and satisfies the following condition: 0 degrees ≤ θ1 ≤ 45 degrees.

32. The optical lens element as claimed in claim 31, characterized in that, The first strip-shaped structure forms a first angle with the central axis, and the angle of the first angle is θ1, which satisfies the following condition: 0 degrees ≤ θ1 ≤ 25 degrees.

33. An optical lens element, characterized in that, It has a central axis and includes: A first side surface, through which the central axis passes, the first side surface comprising, in sequence along a direction away from the central axis: A first optical region, the central axis passing through a center of the first optical region; and A first peripheral area, which is adjacent to the first optical area; A second side surface, wherein the first side surface and the second side surface are disposed opposite each other along the central axis, and the second side surface comprises, in sequence along a direction away from the central axis: A second optical region, the central axis passing through a center of the second optical region; and A second peripheral area, the second peripheral area being adjacent to the second optical area; and An outer diameter surface is disposed between the first side surface and the second side surface, and the outer diameter surface is farther away from the central axis than the first side surface and the second side surface. The outer diameter surface includes: An arc-shaped region is formed around the central axis and has two arc-shaped ends. The arc-shaped region includes a first strip-shaped structure portion, which has a plurality of first strip-shaped structures extending from the first side side to the second side side, and the plurality of first strip-shaped structures are arranged around the central axis along the arc-shaped region. as well as A reduced region extends along a direction surrounding the central axis and has two ends, the two ends of the reduced region being respectively disposed corresponding to the two arc-shaped ends of the arc-shaped region, and the reduced region being closer to the central axis than the arc-shaped region. The reduced region includes a second strip-shaped structure portion, the second strip-shaped structure portion having a plurality of second strip-shaped structures extending from the first side to the second side, and the plurality of second strip-shaped structures being arranged along one of the two ends to the other. The outer diameter surface also includes a turning area, which is located between the two arc-shaped ends and the two end points, and connects the shrinkage area and the arc-shaped area. The turning area includes a third strip-shaped structure portion, which has at least two third strip-shaped structures extending from the first side to the second side. The extension lines of each of the at least two third strip-shaped structures can converge at a point.

34. The optical lens element as claimed in claim 33, characterized in that, Each of the plurality of first strip structures and each of the plurality of second strip structures has a wedge-shaped tapering structure that tapers away from the central axis.

35. The optical lens element as claimed in claim 33, characterized in that, Each of the at least two third strip structures has a wedge-shaped tapering structure that tapers away from the central axis.

36. The optical lens element as claimed in claim 33, characterized in that, The first strip-shaped structure forms a first angle with the central axis, the angle of which is θ1, and satisfies the following condition: 0 degrees ≤ θ1 ≤ 45 degrees.

37. The optical lens element as claimed in claim 36, characterized in that, The first strip-shaped structure forms a first angle with the central axis, and the angle of the first angle is θ1, which satisfies the following condition: 0 degrees ≤ θ1 ≤ 25 degrees.

38. The optical lens element as claimed in claim 33, characterized in that, The second strip-shaped structure forms a second angle with the central axis, the angle of which is θ2, and satisfies the following condition: 0 degrees ≤ θ2 ≤ 45 degrees.

39. The optical lens element as claimed in claim 38, characterized in that, The second strip-shaped structure forms a second angle with the central axis, and the angle of the second angle is θ2, which satisfies the following condition: 0 degrees ≤ θ2 ≤ 25 degrees.

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