Imaging lens and electronic device

Abstract

The invention discloses an imaging lens, which comprises an optical element, wherein the optical element is a light-transmitting element. The optical element includes an optical portion and a peripheral portion. The optical part comprises an incident plane and an emergent plane, the imaging light enters the optical element from the incident plane, and the imaging light leaves the optical element from the emergent plane. The peripheral portion is farther from the optical axis of the imaging lens than the optical portion. The peripheral part comprises at least one connecting surface and a plurality of air barriers. The connecting surface is connected with the incident surface and the emergent surface. The air barrier is arranged on at least part of the surface of the peripheral part, and the air barrier is recessed from the at least part of the surface to the direction of the optical axis. The recessed profile of the air barrier includes at least one of a dot shape and a linear shape. The invention further discloses an electronic device with the imaging lens.

Description

Technical Field

[0001] The present invention relates to an imaging lens and an electronic device, in particular to an imaging lens suitable for an electronic device. Background Art

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

[0003] Generally speaking, the peripheral surfaces of the non-effective diameters of optical elements such as optical lenses and optical reflecting prisms of an optical lens usually have a relatively high reflectivity, and it is relatively difficult to effectively reduce the non-imaging light incident on the peripheral surfaces. Especially when the peripheral surface is a smooth plane, it will cause the non-imaging light to be reflected to the imaging surface after being incident on the peripheral surface, forming stray light and affecting the imaging quality. On the other hand, optical elements are usually manufactured by injection molding, and the injection mark is the cut mark at the runner corresponding to the gating system on the optical element. The injection mark is usually located on the peripheral surface of the non-effective diameter of the optical element, and the surface of the injection mark may be uneven due to cutting, so that the non-imaging light is reflected by the injection mark and becomes stray light, thus affecting the imaging quality. Summary of the Invention

[0004] In view of the above-mentioned problems, the present invention discloses an imaging lens and an electronic device, which helps to avoid the problem that non-imaging light in the prior art is reflected to the imaging surface after being incident on the peripheral surface of the non-effective diameter of the optical element to form stray light.

[0005] The present invention provides an imaging lens, which includes an optical element, and the optical element is a light-transmitting element. The optical element includes an optical part and an outer peripheral part. The optical part includes an incident surface and an exit surface, wherein imaging light enters the optical element from the incident surface and exits the optical element from the exit surface. The outer peripheral part is farther from the optical axis of the imaging lens than the optical part. Preferably, the outer peripheral part includes at least one connecting surface, a reducing surface, an injection mark, and a plurality of air barriers. Preferably, the connecting surface connects the incident surface and the exit surface. Preferably, the reducing surface is adjacent to the connecting surface and is closer to the optical axis than the connecting surface. Preferably, the injection mark is disposed on the reducing surface. Preferably, the air barriers are at least disposed on the injection mark and are recessed in the direction towards the optical axis. Preferably, the recessed contour of the air barriers includes at least one of a dot shape and a line shape. The recessed width of each air barrier is Wab, which preferably satisfies the following condition: 0.008 mm ≤ Wab ≤ 0.07 mm.

[0006] The present invention further provides an imaging lens, which includes an optical element, and the optical element is a light-transmitting element. The optical element includes an optical portion and an outer peripheral portion. The optical portion includes an incident surface and an exit surface, wherein imaging light enters the optical element from the incident surface and exits the optical element from the exit surface. The outer peripheral portion is farther from the optical axis of the imaging lens than the optical portion. Preferably, the outer peripheral portion includes at least one connecting surface and a plurality of air barriers. Preferably, the connecting surface connects the incident surface and the exit surface. Preferably, the air barriers are disposed on at least a part of the surface of the outer peripheral portion, and the air barriers are recessed from the at least a part of the surface in a direction towards the optical axis. Preferably, the recessed profile of the air barriers includes at least one of a dot-like shape and a line-like shape.

[0007] The present invention provides an electronic device, which includes the aforementioned imaging lens.

[0008] According to the imaging lens and the electronic device disclosed by the present invention, by disposing air barriers on at least a part of the surface of the outer peripheral portion of the optical element, and the air barriers are recessed from the disposed surface towards the inside of the optical element, the reflection path of stray light on the surface of the outer peripheral portion can be blocked by the air barriers, avoiding the influence of the stray light on the image, thereby ensuring the imaging quality.

[0009] The above description of the content of the present invention and the following description of the embodiments are used to demonstrate and explain the spirit and principle of the present invention, and provide a further explanation of the claims of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A perspective schematic view of an imaging lens according to a first embodiment of the present invention is shown.

[0011] Figure 2 Shown Figure 1 A cross-sectional view and a partial enlarged schematic view of the imaging lens are shown.

[0012] Figure 3 Shown Figure 1 A perspective view and a partial enlarged schematic view of the optical element of the imaging lens are shown.

[0013] Figure 4 Shown Figure 3 A cross-sectional view and a partial enlarged schematic view of the optical element are shown.

[0014] Figure 5 Shown Figure 3 An image-side perspective view and a partial enlarged schematic view of the optical element are shown.

[0015] Figure 6 Shown Figure 3 A side view and a partial enlarged schematic view of the optical element are shown.

[0016] Figure 7 ShownFigure 3 Side view schematic diagram of the optical element

[0017] Figure 8 Perspective view and partial enlarged view of an optical element according to another embodiment of the present invention

[0018] Figure 9 Illustrate Figure 8 Side view and partial enlarged view of the optical element

[0019] Figure 10 Perspective view schematic diagram of an imaging lens according to the second embodiment of the present invention

[0020] Figure 11 Illustrate Figure 10 Cross-sectional view and partial enlarged view of the imaging lens

[0021] Figure 12 Illustrate Figure 10 Perspective view and partial enlarged view of the optical element of the imaging lens

[0022] Figure 13 Illustrate Figure 12 Image-side perspective view schematic diagram of the optical element

[0023] Figure 14 Illustrate Figure 12 Side view and partial enlarged view of the optical element

[0024] Figure 15 Illustrate Figure 12 Side view schematic diagram of the optical element

[0025] Figure 16 Partial enlarged view of the outer peripheral portion of an optical element and its air barrier according to another embodiment of the present invention

[0026] Figure 17 Partial enlarged view of the outer peripheral portion of an optical element and its air barrier according to another embodiment of the present invention

[0027] Figure 18 Partial enlarged view of the outer peripheral portion of an optical element and its air barrier according to another embodiment of the present invention

[0028] Figure 19 Partial enlarged view of the outer peripheral portion of an optical element and its air barrier according to another embodiment of the present invention

[0029] Figure 20 Partial enlarged view of the outer peripheral portion of an optical element and its air barrier according to another embodiment of the present invention

[0030] Figure 21 Stereoscopic schematic diagram of an imaging lens according to the third embodiment of the present invention.

[0031] Figure 22 Shows Figure 21 Cross-section and partial enlarged schematic diagram of the imaging lens of

[0032] Figure 23 Shows Figure 21 Stereoscopic and partial enlarged schematic diagram of the optical element of the imaging lens of

[0033] Figure 24 Shows Figure 23 Side view and partial enlarged schematic diagram of the optical element of

[0034] Figure 25 Stereoscopic and partial enlarged schematic diagram of an optical element focusing on a feeding mark by laser to form an air barrier according to an embodiment of the present invention.

[0035] Figure 26 Stereoscopic schematic diagram of one side of an electronic device according to the fourth embodiment of the present invention.

[0036] Figure 27 Shows Figure 26 Stereoscopic schematic diagram of the other side of the electronic device of

[0037] Figure 28 Schematic diagram of capturing an image with an ultra-wide-angle imaging lens.

[0038] Figure 29 Schematic diagram of capturing an image with a high-pixel imaging lens.

[0039] Figure 30 Schematic diagram of capturing an image with a telephoto imaging lens.

[0040] Figure 31 Stereoscopic schematic diagram of one side of an electronic device according to the fifth embodiment of the present invention.

[0041] Figure 32 Stereoscopic schematic diagram of an electronic device according to the sixth embodiment of the present invention.

[0042] Figure 33 Shows Figure 32 Side view schematic diagram of the electronic device of

[0043] Figure 34 Shows Figure 32 Top view schematic diagram of the electronic device of

[0044]

Symbol description

[0045] 1, 2, 3, 100a, 100b, 100c, 100d, 200, 200a, 200b, 200c, 200d, 200e, 200f, 200g, 200h, 300: Imaging lens

[0046] 10, 10a, 20, 30: Optical element

[0047] 11, 21, 31: Optical part

[0048] 111, 211, 311: Incident surface

[0049] 112, 212, 312: Exit surface

[0050] 313: Reflecting surface

[0051] 12, 22, 32: Outer peripheral part

[0052] 120, 220, 320: Connecting surface

[0053] 121, 121a, 221: Reducing surface

[0054] 122, 122a, 222, 322: Injection mark

[0055] 123, 123a, 223, 223a, 223b, 223c, 223d, 223e, 323: Air barrier

[0056] 400, 500, 600: Electronic device

[0057] 401, 501: Flashlight module

[0058] 402: Focus assist module

[0059] 403: Image signal processor

[0060] 404: Display module

[0061] RP: Reflecting prism

[0062] LG, LG1, LG2: Lens group

[0063] LE: Lens

[0064] IMG: Imaging surface

[0065] OL: Optical axis

[0066] D1: First direction

[0067] D2: Second direction

[0068] Wab: Depression width of air barrier

[0069] θab: The minimum included angle formed by the curved contour of the air barrier

[0070] θg: The sweeping angle of the injection mark centered on the optical axis

[0071] D: The maximum outer diameter of the optical element in the direction perpendicular to the optical axis

[0072] H: The shortest distance between the injection mark and the exit surface in the direction perpendicular to the optical axis

[0073] ET: The thickness of the outer peripheral portion in the direction parallel to the optical axis

[0074] T1: The distance between two adjacent air barriers Detailed implementation mode

[0075] The detailed features and advantages of the present invention are described in detail in the following embodiments. The content is sufficient for any person skilled in the art to understand the technical content of the present invention and implement it accordingly. According to the content disclosed in this specification, the scope of the patent application, and the drawings, any person skilled in the art can easily understand the related purposes and advantages of the present invention. The following embodiments further illustrate the viewpoints of the present invention in detail, but do not limit the scope of the present invention in any way.

[0076] The present invention provides an imaging lens, which includes an optical element, and the optical element is a light-transmitting element. Among them, the optical element can be, for example, an element with optical functions such as a plastic lens, a molded glass lens, a ground glass lens, a plastic prism, a glass prism, a filter, etc.

[0077] The optical element includes an optical portion and an outer peripheral portion. The optical portion includes an incident surface and an exit surface, where imaging light enters the optical element from the incident surface and exits the optical element from the exit surface. The outer peripheral portion is farther from the optical axis of the imaging lens than the optical portion, and the outer peripheral portion includes at least one connecting surface and a plurality of air barriers. The at least one connecting surface connects the incident surface and the exit surface. The air barriers are provided on at least a part of the surface of the outer peripheral portion, and the air barriers are recessed in the direction toward the optical axis from the at least a part of the surface. Among them, the recessed contour of the air barrier includes at least one of a dot shape and a line shape. Thereby, the air barrier is recessed from the set surface toward the inside of the optical element, so that the reflection path of stray light on the surface of the outer peripheral portion is blocked by the air barrier, avoiding the influence of stray light on the image, and thereby ensuring the imaging quality. In the embodiment where the recessed contour is a line shape, the recessed contour can be, for example, a straight line (as shown in Figure 3 ) or a curve (as shown in Figure 12 ). In the embodiment where the recessed contour is a dot shape, the recessed contour can be, for example, a circle (as shown in Figure 23 ) or an ellipse.

[0078] In one embodiment, the outer peripheral portion may further include a reduced surface, and the reduced surface may be adjacent to the connecting surface and closer to the optical axis than the connecting surface; thereby, it helps to reduce the volume of the optical element. Wherein, an air barrier may be disposed on the reduced surface; thereby, the air barrier is recessed from the reduced surface toward the interior of the optical element, so that the reflection path of stray light on the reduced surface is blocked by the air barrier, avoiding the influence of stray light on the image, thereby ensuring the imaging quality. Please refer to Figure 5 , which is a perspective view of the image side of the optical element of the imaging lens according to the first embodiment of the present invention and a partial enlarged schematic view thereof. Figure 5 The dashed line part in is the contour extension line of the adjacent connecting surface 120. From this, it can be seen that the reduced surface 121 is closer to the optical axis than the adjacent connecting surface 120.

[0079] In another embodiment, the outer peripheral portion may further include a gate trace, and the gate trace may be disposed on the connecting surface. Wherein, an air barrier may be disposed on the connecting surface. Thereby, the air barrier is recessed from the connecting surface toward the interior of the optical element, so that the reflection path of stray light on the connecting surface is blocked by the air barrier, avoiding the influence of stray light on the image, thereby ensuring the imaging quality. Please refer to Figure 23 , which is a three-dimensional view of the optical element of the imaging lens according to the third embodiment of the present invention and a partial enlarged schematic view thereof. It can be seen that the gate trace 322 is disposed on the connecting surface 320. Wherein, an absorbent material may be further disposed on the surface of the gate trace, and the absorbent material may be a material that can reduce light reflection, such as dark ink, photocurable coating, acrylic pigment, carbon black, metal oxide, etc., but the present invention is not limited thereto.

[0080] In another embodiment, the outer peripheral portion may further include a reduced surface and a gate trace. Wherein, the reduced surface may be adjacent to the connecting surface and closer to the optical axis than the connecting surface. Wherein, the gate trace may be disposed on the reduced surface, and the air barrier may be disposed at least on the gate trace; thereby, the air barrier is recessed from the surface of the gate trace toward the interior of the optical element, so that the reflection path of stray light on the gate trace is blocked by the air barrier, avoiding the influence of stray light on the image, thereby ensuring the imaging quality. Wherein, the area of the reduced surface is Ar, and the total area occupied by the gate trace and the air barrier on the reduced surface is Ag, which may satisfy the following condition: 0.2 < Ag / Ar ≤ 1; thereby, the reflection of stray light on the reduced surface can be reduced. Wherein, the air barrier may extend from the gate trace on the reduced surface to other regions of the reduced surface or extend to the connecting surface; thereby, it helps to reduce the reflection of stray light. Please refer to Figure 3 , which is a three-dimensional view of the optical element of the imaging lens according to the first embodiment of the present invention and a partial enlarged schematic view thereof. As Figure 3As shown, in some embodiments, the air barrier 123 is in a grid shape, and the setting range of the air barrier 123 covers the injection mark 122 and further extends to the surrounding reduced surface 121. Please refer to Figure 7 and Figure 15 are respectively side view schematic diagrams showing the optical elements of the imaging lenses according to the first embodiment and the second embodiment of the present invention. Figure 7 and Figure 15 respectively clearly present the area ratio relationships between the injection mark 122, the air barrier 123 and the reduced surface 121, and the area ratio relationships between the injection mark 222, the air barrier 223 and the reduced surface 221 with different examples.

[0081] Regarding the areas of the reduced surface, the injection mark, and the air barrier respectively, the area ratios of the injection mark and the air barrier covered on the reduced surface can be judged through image analysis. For example, since the original reduced surface is a flat surface, its gloss will be different from the uneven injection mark and the air barrier, and thus the covered area can be calculated. However, the present invention is not limited to the foregoing analysis method. For example, the area can also be calculated by using instruments such as roughness measuring instruments that can analyze surface properties.

[0082] The recessed width of each air barrier is Wab, which can satisfy the following conditions: 0.008 mm ≤ Wab ≤ 0.07 mm. Thereby, the reflection path of stray light can be effectively blocked. Among them, when the recessed contour of the air barrier is linear, the recessed width refers to the line width; when the recessed contour of the air barrier is dot-shaped, the recessed width refers to the diameter of the dot. Among them, the following conditions can also be satisfied: 0.012 mm ≤ Wab ≤ 0.05 mm. Please refer to Figure 6 is a schematic diagram showing the parameter Wab in the first embodiment of the present invention. Regarding the recessed width of the air barrier, since the linear or dot-shaped recesses of the air barrier may have some unevenness on the surface where they are set, it may cause the linear or dot-shaped contours to be not easily recognizable. For example, the contour of a straight line may have a slight bend, and the contour of a circle may become an ellipse, etc. In this case, the recessed width of the air barrier can be measured or calculated from the area where the contour can be more clearly recognized. For example, the recessed contour is recognized on the relatively flat reduced surface around to measure or calculate the recessed width.

[0083] The air barriers can be regularly arranged along a first direction. Thereby, it helps to control the production quality. Please refer to Figure 6 and Figure 9 are respectively side view and partial enlarged schematic diagrams showing different embodiments of the imaging lens according to the first embodiment of the present invention. From Figure 6 and Figure 9It can be seen that the air barriers 123 are regularly arranged along the first direction D1, and the air barriers 123a are regularly arranged along the first direction D1.

[0084] The concave contour of the air barrier can be a curved contour. Thereby, it helps to block stray light incident from different directions and can reduce the process at the same time. Among them, the minimum included angle formed by the curved contour of the air barrier is θab, which can satisfy the following conditions: 50 degrees < θab < 180 degrees. Please refer to Figure 12 and Figure 14 , which are respectively a three-dimensional and partial enlarged schematic view and a side view and partial enlarged schematic view of the optical elements of the imaging lens according to the second embodiment of the present invention. It can be seen that the concave contour of the air barrier 223 is a curved contour. In addition, Figure 14 A schematic diagram of the parameter θab in the second embodiment of the present invention is shown.

[0085] The air barriers can be further regularly arranged along a second direction different from the first direction; thereby, the air barriers are arranged along at least two directions, which helps to block stray light incident from different directions. Among them, the extension paths of at least two of the air barriers can intersect with each other; thereby, it helps to block stray light incident from different directions. Among them, the intersection of the extension directions between the air barriers can form textures such as a grid shape or a rhombus shape, but the present invention is not limited thereto. Please refer to Figure 6 and Figure 24 , which are respectively a side view and partial enlarged schematic view of the optical elements of different embodiments of the imaging lens according to the first embodiment and the third embodiment of the present invention. It can be seen that the air barriers 123 are regularly arranged along the first direction D1 and the second direction D2, and the air barriers 323 are regularly arranged along the first direction D1 and the second direction D2. In addition, from Figure 6 It can be seen that the extension paths between the air barriers 123 intersect with each other, so that the air barriers 123 are in a grid shape.

[0086] The concave contour of the air barrier can be a linear concave contour, and the linear concave contour can be formed by a continuous plurality of dot-like depressions. For example, please refer to Figure 25 , which is a three-dimensional and partial enlarged schematic view of an optical element according to an embodiment of the present invention for processing an air barrier by laser focusing on a feeding mark. Regarding the formation method of the air barrier 123, the laser can be focused on a point on the outer peripheral surface 12 (such as the connection surface 120, the reduction surface 121, and / or the feeding mark 122 on the reduction surface 121) to melt and burn out a dot-like air barrier 123 on the outer peripheral surface 12. For another example, along Figure 25 the path shown by the arrow in Figure 25The injection mark 122 in

[0087] is shown as a rectangular parallelepiped for convenience of illustration only, and the present invention is not limited to the shape of the injection mark. For example, in actual situations, the injection mark may have uneven cutting, resulting in a surface with undulations rather than a flat surface. Figure 5 Please refer to

[0088] which is a schematic diagram showing the parameter θg in the first embodiment of the present invention. The sweeping angle of the injection mark centered on the optical axis is θg, which can satisfy the following condition: 14 degrees < θg < 45 degrees. Thereby, it helps to improve the injection molding quality of the optical element. Figure 5 Please refer to

[0089] which is a schematic diagram showing the parameters D and H in the first embodiment of the present invention. The maximum outer diameter of the optical element in the direction perpendicular to the optical axis is D, and the shortest distance between the injection mark and the exit surface in the direction perpendicular to the optical axis is H, which can satisfy the following condition: 0.01 < H / D < 0.2. Thereby, it helps to miniaturize the design of the lens. Figure 4 and Figure 5 Please refer to Figure 4 which are schematic diagrams respectively showing the parameters ET and D in the first embodiment of the present invention. The thickness of the outer peripheral part in the direction parallel to the optical axis is ET, and the maximum outer diameter of the optical element in the direction perpendicular to the optical axis is D, which can satisfy the following condition: 1.6 < D / ET < 8.8. Thereby, it helps to improve the optical refractive power.

[0090] At least one of the incident surface and the exit surface of the optical part can be non-circular. Thereby, it helps to miniaturize the design of the lens.

[0091] The optical part may further include a reflecting surface, and the imaging light changes its traveling direction through the reflecting surface. Please refer to Figure 22 which is a sectional view and a partial enlarged schematic diagram of the imaging lens according to the third embodiment of the present invention. It can be seen that the optical element 30 is a prism with a reflecting surface 313, where the reflecting surface 313 can be located between the incident surface 311 and the exit surface 312 on the optical path, and the imaging light changes its traveling direction through the reflecting surface 313.

[0092] The present invention provides an electronic device, which includes the aforementioned imaging lens.

[0093] Each technical feature in the imaging lens of the present invention described above can be combined and configured to achieve the corresponding effects.

[0094] According to the above embodiments, specific embodiments are proposed below and will be described in detail with reference to the accompanying drawings.

[0095] <First Embodiment>

[0096] Please refer to Figures 1 to 7 , in which Figure 1 FIG. shows a three-dimensional schematic diagram of an imaging lens according to the first embodiment of the present invention, Figure 2 FIG. shows Figure 1 a cross-section and a partial enlarged schematic diagram of the imaging lens of Figure 3 FIG. shows Figure 1 a three-dimensional and a partial enlarged schematic diagram of the optical elements of the imaging lens of Figure 4 FIG. shows Figure 3 a cross-section and a partial enlarged schematic diagram of the optical elements of Figure 5 FIG. shows Figure 3 an image-side view and a partial enlarged schematic diagram of the optical elements of Figure 6 FIG. shows Figure 3 a side view and a partial enlarged schematic diagram of the optical elements of , and Figure 7 FIG. shows Figure 3 a side view schematic diagram of the optical elements of .

[0097] The imaging lens 1 sequentially includes a reflecting prism RP, a first lens group LG1, a second lens group LG2, and an imaging surface IMG along the optical path from the object side to the image side. Among them, the reflecting prism RP is used to turn the optical path. The second lens group LG2 sequentially includes a lens LE and an optical element 10 along the optical path from the object side to the image side.

[0098] The optical element 10 is a light-transmitting element, and specifically, it is an optical lens in this embodiment. The optical element 10 includes an optical portion 11 and an outer peripheral portion 12. The optical portion 11 includes an incident surface 111 and an exit surface 112. Among them, the imaging light enters the optical element 10 from the incident surface 111, and the imaging light leaves the optical element 10 from the exit surface 112 and forms an image on the imaging surface IMG. In this embodiment, at least one of the incident surface 111 and the exit surface 112 is non-circular.

[0099] The outer peripheral part 12 is farther from the optical axis OL of the imaging lens 1 than the optical part 11, and the outer peripheral part 12 includes a plurality of connection surfaces 120, a reduction surface 121, a filling mark 122, and a plurality of air barriers 123. The connection surfaces 120 connect the incident surface 111 and the exit surface 112. The reduction surface 121 is adjacent to the connection surfaces 120, and the reduction surface 121 is closer to the optical axis OL than the adjacent connection surfaces 120. The filling mark 122 is provided on the reduction surface 121, and the air barriers 123 are provided on the filling mark 122 on the reduction surface 121 and extend from the filling mark 122 on the reduction surface 121 to other areas of the reduction surface 121. Among them, the air barriers 123 are recessed in the direction toward the optical axis OL from the set surfaces (such as the surface of the filling mark 122 and the reduction surface 121).

[0100] The recessed contour of the air barriers 123 is linear. More specifically, the recessed contour is straight, and these linear recessed contours are formed by a plurality of continuous dot-like recesses. Among them, the air barriers 123 are regularly arranged along a first direction D1 and a second direction D2 different from the first direction D1, and the extension paths of some of the air barriers 123 and the extension paths of other parts of the air barriers 123 intersect each other. In this embodiment, the air barriers 123 are in a grid shape, and the set range of the air barriers 123 covers the filling mark 122 and further extends to the surrounding reduction surface 121.

[0101] As Figure 6 shown, the recessed width of each air barrier 123 is Wab, which satisfies the following condition: Wab = 0.02 millimeters (mm).

[0102] Please refer to Figure 7 , the area of the reduction surface 121 is Ar, and the total area occupied by the filling mark 122 and the air barriers 123 on the reduction surface 121 is Ag, which satisfies the following conditions: Ar = 2.78 mm 2 ; Ag = 1.57 mm 2 ; and Ag / Ar = 0.565.

[0103] As Figure 5 shown, the sweeping angle of the filling mark 122 centered on the optical axis OL is θg, which satisfies the following condition: θg = 30.1 degrees.

[0104] As Figure 5 shown, the maximum outer diameter of the optical element 10 in the direction perpendicular to the optical axis OL is D, and the shortest distance between the filling mark 122 and the exit surface 112 in the direction perpendicular to the optical axis OL is H, which satisfies the following conditions: D = 5.5 mm; H = 0.24 mm; and H / D = 0.04.

[0105] As Figure 4 and Figure 5As shown, the thickness of the outer peripheral portion 12 in the direction parallel to the optical axis OL is ET, the maximum outer diameter of the optical element 10 in the direction perpendicular to the optical axis OL is D, and they satisfy the following conditions: ET = 1.56 mm; D = 5.5 mm; and D / ET = 3.53.

[0106] The present invention is not limited to the form of the concave contour of the above-mentioned air barrier 123. For example, please refer to Figure 8 and Figure 9 , in which Figure 8 shows a perspective view and a partial enlarged schematic view of an optical element according to another embodiment of the present invention, and Figure 9 shows Figure 8 a side view and a partial enlarged schematic view of the optical element of . The optical element 10a in another embodiment of the present invention is similar to the aforementioned optical element 10, and the same elements are denoted by the same or similar reference numerals. The functions and effects of each element are the same as those of the aforementioned, and will not be described herein again.

[0107] As Figure 8 and Figure 9 shown, the air barrier 123a is disposed on the injection mark 122a on the reduced surface 121a and extends from the injection mark 122a on the reduced surface 121a to other regions of the reduced surface 121a. Among them, the air barrier 123a is recessed in the direction toward the optical axis OL from the surface on which it is disposed.

[0108] The concave contour of the air barrier 123a is linear. More specifically, the concave contour is a zigzag-shaped curved depression, and these linear concave contours can be formed by a continuous plurality of dot depressions. Among them, the air barriers 123a are regularly arranged along the first direction D1, and the setting range of the air barriers 123a covers the injection mark 122a and further extends to the surrounding reduced surface 121a.

[0109] As Figure 9 shown, the distance between two adjacent air barriers 123a is T1, and it satisfies the following condition: T1 = 0.04 mm.

[0110] <Second Embodiment>

[0111] Please refer to Figures 10 to 15 , in which Figure 10 shows a perspective view of an imaging lens according to the second embodiment of the present invention, Figure 11 shows Figure 10 a cross-section and a partial enlarged schematic view of the imaging lens of , Figure 12 shows Figure 10 a perspective view and a partial enlarged schematic view of the optical element of the imaging lens of , Figure 13 shows Figure 12Image-side view angle of the optical element and its partial enlarged schematic diagram, Figure 14 Illustrate Figure 12 Side view of the optical element and its partial enlarged schematic diagram, and Figure 15 Illustrate Figure 12 Side view schematic diagram of the optical element.

[0112] The imaging lens 2 sequentially includes a plurality of lenses LE, an optical element 20, and an imaging surface IMG along the optical path from the object side to the image side.

[0113] The optical element 20 is a light-transmitting element, and in this embodiment, it is specifically an optical lens. The optical element 20 includes an optical portion 21 and an outer peripheral portion 22. The optical portion 21 includes an incident surface 211 and an exit surface 212, where the imaging light enters the optical element 20 from the incident surface 211, and the imaging light leaves the optical element 20 from the exit surface 212 and forms an image on the imaging surface IMG.

[0114] The outer peripheral portion 22 is farther from the optical axis OL of the imaging lens 2 than the optical portion 21, and the outer peripheral portion 22 includes a plurality of connection surfaces 220, a reduced surface 221, a casting mark 222, and a plurality of air barriers 223. The connection surfaces 220 connect the incident surface 211 and the exit surface 212. The reduced surface 221 is adjacent to the connection surface 220, and the reduced surface 221 is closer to the optical axis OL than the adjacent connection surface 220. The casting mark 222 is provided on the reduced surface 221, and the air barrier 223 is provided on the casting mark 222 on the reduced surface 221 and extends from the casting mark 222 on the reduced surface 221 to other regions of the reduced surface 221. Among them, the air barrier 223 is recessed in the direction toward the optical axis OL from the set surface (such as the surface of the casting mark 222 and the reduced surface 221).

[0115] The recessed contour of the air barrier 223 is linear. More specifically, the recessed contour is a curved contour, and these linear recessed contours can be formed by a continuous plurality of dot-like recesses. Among them, the air barriers 223 are regularly arranged along a first direction D1.

[0116] Such as Figure 14 shown, the recessed width of each air barrier 223 is Wab, which satisfies the following condition: Wab = 0.015 mm.

[0117] Please refer to Figure 15 , the area of the reduced surface 221 is Ar, and the total area occupied by the casting mark 222 and the air barrier 223 on the reduced surface 221 is Ag, which satisfies the following conditions: Ar = 0.762 mm 2 ; Ag = 0.267 mm 2 ; and Ag / Ar = 0.35.

[0118] Such as Figure 13As shown, the sweeping angle of the injection mark 222 centered on the optical axis OL is θg, which satisfies the following condition: θg = 14 degrees.

[0119] As Figure 13 shown, the maximum outer diameter of the optical element 20 in the direction perpendicular to the optical axis OL is D, and the shortest distance between the injection mark 222 and the exit surface 212 in the direction perpendicular to the optical axis OL is H, which satisfies the following conditions: D = 8 mm; H = 0.25 mm; and H / D = 0.03.

[0120] As Figure 14 shown, the minimum included angle formed by the curved profile of the air barrier 223 is θab, which satisfies the following condition: θab = 113.5 degrees.

[0121] The present invention is not limited to the form of the concave profile of the air barrier 223 described above. Five additional embodiments of the concave profile of the air barrier of the present invention are further provided below. The air barriers 223a, 223b, 223c, 223d, and 223e in the following embodiments are similar to the aforementioned air barrier 223 and are denoted by the same or similar reference numerals to represent the same elements. The functions and effects of each element are the same or similar to those described above and will not be repeated here.

[0122] For example, please refer to Figure 16 , which is a partially enlarged schematic view of the outer periphery of an optical element and its air barrier according to another embodiment of the present invention. In one embodiment of the present invention, the concave width of each air barrier 223a is Wab, which satisfies the following condition: Wab = 0.015 mm. Also, the minimum included angle formed by the curved profile of the air barrier 223a is θab, which satisfies the following condition: θab = 70 degrees.

[0123] For another example, please refer to Figure 17 , which is a partially enlarged schematic view of the outer periphery of an optical element and its air barrier according to another embodiment of the present invention. In one embodiment of the present invention, the concave width of each air barrier 223b is Wab, which satisfies the following condition: Wab = 0.015 mm. Also, the minimum included angle formed by the curved profile of the air barrier 223b is θab, which satisfies the following condition: θab = 90 degrees.

[0124] For another example, please refer to Figure 18, which is a partially enlarged schematic view showing the outer peripheral portion of the optical element and its air barrier according to another embodiment of the present invention. In one embodiment of the present invention, the recess width of each air barrier 223c is Wab, which satisfies the following condition: Wab = 0.015 mm. Also, the minimum included angle formed by the curved profile of the air barrier 223c is θab, which satisfies the following condition: θab = 121 degrees.

[0125] For another example, please refer to Figure 19 , which is a partially enlarged schematic view showing the outer peripheral portion of the optical element and its air barrier according to another embodiment of the present invention. In one embodiment of the present invention, the recess width of each air barrier 223d is Wab, which satisfies the following condition: Wab = 0.015 mm. Also, the minimum included angle formed by the curved profile of the air barrier 223d is θab, which satisfies the following condition: θab = 160 degrees.

[0126] For another example, please refer to Figure 20 , which is a partially enlarged schematic view showing the outer peripheral portion of the optical element and its air barrier according to another embodiment of the present invention. In one embodiment of the present invention, the recess width of each air barrier 223e is non-uniform, and the recess width of each air barrier 223e is Wab, which satisfies the following condition: 0.015 mm ≤ Wab ≤ 0.03 mm. Among them, the maximum recess width of each air barrier 223e is 0.03 mm, and the minimum recess width of each air barrier 223e is 0.015 mm. Also, the minimum included angle formed by the curved profile of the air barrier 223e is θab, which satisfies the following condition: θab = 160 degrees.

[0127] <Third Embodiment>

[0128] Please refer to Figures 21 to 24 , where Figure 21 is a three-dimensional schematic view of an imaging lens according to the third embodiment of the present invention, Figure 22 shows Figure 21 a cross-section and a partially enlarged schematic view of the imaging lens of Figure 23 shows Figure 21 a three-dimensional and partially enlarged schematic view of the optical element of the imaging lens of Figure 24 shows Figure 23 a side view and a partially enlarged schematic view of the optical element of

[0129] The imaging lens 3 sequentially includes a lens group LG, an optical element 30, and an imaging surface IMG along the optical path from the object side to the image side.

[0130] The optical element 30 is a light-transmitting element, and in this embodiment, it is specifically an optical reflecting prism for turning the optical path. The optical element 30 includes an optical portion 31 and an outer peripheral portion 32. The optical portion 31 sequentially includes an incident surface 311, a plurality of reflecting surfaces 313, and an exit surface 312 along the optical path from the object side to the image side. Among them, the imaging light enters the optical element 30 through the incident surface 311, changes the traveling direction of the imaging light through the reflecting surfaces 313, and the imaging light leaves the optical element 30 through the exit surface 312 and forms an image on the imaging surface IMG.

[0131] The outer peripheral portion 32 is farther from the optical axis OL of the imaging lens 3 than the optical portion 31, and the outer peripheral portion 32 includes a plurality of connecting surfaces 320, a casting mark 322, and a plurality of air barriers 323. The connecting surfaces 320 connect the incident surface 311, the reflecting surfaces 313, and the exit surface 312. The casting mark 322 is disposed on one of the connecting surfaces 320, and the air barriers 323 are disposed on the casting mark 322 on the connecting surface 320 and extend from the casting mark 322 on the connecting surface 320 to other regions of the connecting surface 320. Among them, the air barriers 323 are recessed in the direction toward the optical axis OL from the set surface (such as the surface of the casting mark 322 and the connecting surface 320).

[0132] The recessed contour of the air barrier 323 is dot-shaped. More specifically, the recessed contour is a circular dot-shaped recessed contour. Among them, the air barriers 323 are regularly arranged along a first direction D1 and a second direction D2 different from the first direction D1. In this embodiment, the setting range of the air barriers 323 covers the casting mark 322 and further extends to the surrounding connecting surfaces 320.

[0133] As Figure 24 shown, the recessed width Wab of each air barrier 323 satisfies the following condition: Wab = 0.06 millimeters (mm).

[0134] <Fourth Embodiment>

[0135] Please refer to Figure 26 and Figure 27 where Figure 26 shows a three-dimensional schematic diagram of one side of an electronic device according to the fourth embodiment of the present invention, and Figure 27 shows Figure 26 a three-dimensional schematic diagram of the other side of the electronic device.

[0136] In this embodiment, the electronic device 400 is a smart phone. The electronic device 400 includes a plurality of imaging lenses, a flash module 401, a focus assist module 402, an image signal processor 403, a display module (user interface) 404, and an image software processor (not shown).

[0137] These imaging lenses include an ultra-wide-angle imaging lens 100a, a high-pixel imaging lens 100b, a telephoto imaging lens 100c, and a telephoto imaging lens 100d. Among them, the high-pixel imaging lens 100b includes, for example, the imaging lens 1 of the above first embodiment and an electronic photosensitive element (not shown). The telephoto imaging lens 100c includes, for example, the imaging lens 2 of the above second embodiment and an electronic photosensitive element (not shown). The telephoto imaging lens 100d includes, for example, the imaging lens 3 of the above third embodiment and an electronic photosensitive element (not shown). And these electronic photosensitive elements are respectively disposed on the imaging surfaces IMG of the imaging lenses 1, 2, and 3. In addition, the ultra-wide-angle imaging lens 100a may also include the imaging lens of the present invention, and the present invention is not limited thereto.

[0138] The ultra-wide-angle imaging lens 100a has the function of accommodating multiple scenes. Figure 28 A schematic diagram showing the image captured by the ultra-wide-angle imaging lens 100a is shown.

[0139] The high-pixel imaging lens 100b has the functions of high resolution and low distortion. The high-pixel imaging lens 100b can further capture Figure 28 a partial area in the image. Figure 29 A schematic diagram showing the image captured by the high-pixel imaging lens 100b is shown.

[0140] The telephoto imaging lenses 100c and 100d have a high magnification function. The telephoto imaging lenses 100c and 100d can further capture Figure 29 a partial area in the image. Figure 30 A schematic diagram showing the image captured by the telephoto imaging lenses 100c and 100d is shown. Among them, the maximum field of view (FOV) of the imaging lens corresponds to Figure 30 the field of view.

[0141] When the user takes a picture of the object to be photographed, the electronic device 400 uses the ultra-wide-angle imaging lens 100a, the high-pixel imaging lens 100b, the telephoto imaging lens 100c or the telephoto imaging lens 100d to collect light and capture an image, activates the flash module 401 for fill light, and uses the object distance information of the object to be photographed provided by the focus assist module 402 for rapid focusing. In addition, the image signal processor 403 performs image optimization processing to further improve the image quality generated by the imaging lens, and at the same time provides a zoom function. The focus assist module 402 can adopt an infrared or laser focus assist system to achieve rapid focusing. The display module 404 can adopt a touch screen, has a touch function, can manually adjust the shooting angle, so as to switch different imaging lenses, and cooperate with the diversified functions of the image software processor to perform image shooting and image processing (or can use a physical shooting button for shooting). The image processed by the image software processor can be displayed on the display module 404.

[0142] <Fifth Embodiment>

[0143] Please refer to Figure 31 , which is a perspective view showing one side of an electronic device according to the fifth embodiment of the present invention.

[0144] In this embodiment, the electronic device 500 is a smart phone. The electronic device 500 includes an imaging lens 200, imaging lenses 200a, 200b, 200c, 200d, 200e, 200f, 200g, 200h, a flash module 501, an image signal processor, a display device, and an image software processor (not shown). The imaging lenses 200, 200a, 200b, 200c, 200d, 200e, 200f, 200g, and 200h are all disposed on the same side of the electronic device 500, while the display device is disposed on the other side of the electronic device 500. Among them, the imaging lens 200c includes, for example, the imaging lens 1 of the first embodiment and an electronic photosensitive element (not shown), and the electronic photosensitive element is disposed on the imaging surface IMG of the imaging lens 1. The imaging lenses 200, 200a, 200b, 200d, 200e, 200f, 200g, 200h may also include the imaging lens of the present invention, and the present invention is not limited thereto.

[0145] The imaging lens 200 is an ultra-wide-angle imaging lens, the imaging lens 200a is a telephoto imaging lens, the imaging lens 200b is a telephoto imaging lens, the imaging lens 200c is a telephoto imaging lens, the imaging lens 200d is a telephoto imaging lens, the imaging lens 200e is a wide-angle imaging lens, the imaging lens 200f is a wide-angle imaging lens, the imaging lens 200g is an ultra-wide-angle imaging lens, and the imaging lens 200h is a Time of Flight (ToF) imaging lens. The imaging lenses 200, 200a, 200b, 200c, 200d, 200e, 200f, and 200g in this embodiment have different viewing angles, enabling the electronic device 500 to provide different magnification ratios to achieve the shooting effect of optical zoom. In addition, the imaging lenses 200a and 200b are telephoto imaging lenses with a light turning element configuration. Additionally, the imaging lens 200h can obtain depth information of the image. The above-mentioned electronic device 500 takes the example of including multiple imaging lenses 200, 200a, 200b, 200c, 200d, 200e, 200f, 200g, 200h, but the number and configuration of the imaging lenses are not used to limit the present invention. When the user takes a picture of the object to be photographed, the electronic device 500 uses the imaging lens 200, imaging lens 200a, imaging lens 200b, imaging lens 200c, imaging lens 200d, imaging lens 200e, imaging lens 200f, imaging lens 200g, or imaging lens 200h to collect light and take an image, activates the flash module 501 for supplementary lighting, and performs subsequent processing in a manner similar to the foregoing embodiments, which will not be elaborated herein again.

[0146] <Sixth Embodiment>

[0147] Please refer to Figures 32 to 34 , wherein Figure 32 shows a three-dimensional schematic diagram of an electronic device according to the sixth embodiment of the present invention, Figure 33 shows Figure 32 a side view schematic diagram of the electronic device, and Figure 34 shows Figure 32 a top view schematic diagram of the electronic device.

[0148] In this embodiment, the electronic device 600 is a vehicle. The electronic device 600 includes a plurality of vehicle-mounted imaging lenses 300, and these imaging lenses 300 include the imaging lenses of the present invention, which can be applied to, for example, a panoramic driving assistance system, a driving recorder, and a reverse imaging device.

[0149] As Figure 32As shown, the imaging lens 300 can be disposed around the vehicle body, for example, to capture images around the sedan, which helps to identify road conditions outside the vehicle, thereby enabling the automatic assisted driving function. In addition, the images can be combined into a panoramic view through an image software processor, providing images of the driver's line of sight blind spots, allowing the driver to control the situation around the vehicle body for easier driving and parking.

[0150] As Figure 33 shown, the imaging lens 300 can be respectively disposed below the left and right rearview mirrors, for example. The viewing angle of the imaging lens 300 can be from 40 degrees to 90 degrees, for capturing image information within the range of the left and right adjacent lanes.

[0151] As Figure 34 shown, the imaging lens 300 can also be respectively disposed below the left and right rearview mirrors and inside the front and rear windshield, for example, thereby helping the driver to obtain external space information outside the cockpit, providing more viewing angles to reduce the blind spots of the line of sight and enhancing driving safety.

[0152] The imaging lens of the present invention is not limited to being applied to smartphones, panoramic driving assistance systems, dash cams, and rearview display devices. The imaging lens can be more visually applied to various systems with moving focus, and has the characteristics of excellent aberration correction and good imaging quality. For example, the imaging lens can be widely applied to electronic devices such as three-dimensional (3D) image capture, digital cameras, mobile devices, tablet computers, smart TVs, network monitoring devices, multi-lens devices, identification systems, motion-sensing game consoles, and wearable devices. The above-mentioned electronic devices are only exemplary illustrations of the actual application examples of the present invention, and do not limit the application scope of the imaging lens of the present invention.

[0153] Although the present invention has been disclosed as above with the foregoing embodiments, these embodiments are not intended to limit the present invention. Any changes and modifications made without departing from the spirit and scope of the present invention fall within the scope of patent protection of the present invention. For the scope of protection defined by the present invention, please refer to the appended claims.

Claims

1. An imaging lens, characterized in that: Include: An optical element, wherein the optical element is a light-transmitting element and comprises: An optical unit, comprising: an incident surface, an imaging light enters the optical element from the incident surface; and an exit surface, through which the imaging light leaves the optical element; and a peripheral portion, which is farther from an optical axis of the imaging lens than the optical portion, and the peripheral portion includes: At least one connecting surface, connecting the incident surface and the exit surface; a reduction surface, adjacent to the at least one connecting surface and closer to the optical axis than the at least one connecting surface; an injection mark, arranged on the reduction surface; as well as A plurality of air barriers, at least arranged at the injection mark and recessed toward the optical axis; The concave profile of the air barrier includes at least one of a point shape and a line shape, and the concave width of each air barrier is Wab, which satisfies the following conditions: 0.008mm≤Wab≤0.07mm.

2. The imaging lens according to claim 1, characterized in that: The air barriers are regularly arranged along a first direction.

3. The imaging lens according to claim 2, characterized in that: The concave profile of the air barrier is a curved profile.

4. The imaging lens according to claim 3, characterized in that: The minimum angle formed by the curved profile of the air barrier is θab, which satisfies the following conditions: 50 degrees <θab <180 degrees.

5. The imaging lens according to claim 2, wherein: The air barriers are further regularly arranged along a second direction different from the first direction.

6. The imaging lens according to claim 5, characterized in that: The extension paths of at least two of the air barriers are intertwined with each other.

7. The imaging lens according to claim 1, wherein: The concave width of each of the air barriers is Wab, which satisfies the following conditions: 0.012mm≤Wab≤0.05mm.

8. The imaging lens according to claim 1, wherein: The concave profile of the air barrier is a linear concave profile, and the linear concave profile is formed by a plurality of continuous dot-shaped concave portions.

9. The imaging lens according to claim 1, wherein: The air barrier extends from the injection mark on the reduction surface to other areas of the reduction surface or to the at least one connecting surface.

10. The imaging lens according to claim 1, wherein: The area of ​​the reduced surface is Ar, and the total area occupied by the injection mark and the air barrier on the reduced surface is Ag, which satisfies the following conditions: 0.2 <Ag / Ar≤1。 11. The imaging lens according to claim 1, characterized in that: The maximum outer diameter of the optical element in a direction perpendicular to the optical axis is D, and the shortest distance between the injection mark and the exit surface in a direction perpendicular to the optical axis is H, which satisfies the following conditions: 0.01 <H / D<0.2。 12. The imaging lens according to claim 1, wherein: The thickness of the outer peripheral portion in a direction parallel to the optical axis is ET, and the maximum outer diameter of the optical element in a direction perpendicular to the optical axis is D, which satisfies the following conditions: 1.6 <D / ET<8.8。 13. The imaging lens according to claim 1, wherein: At least one of the incident surface and the exit surface is non-circular.

14. The imaging lens according to claim 1, wherein: The sweep angle of the injection mark with the optical axis as the center is θg, which satisfies the following conditions: 14 degrees ≤ θg ≤ 45 degrees.

15. The imaging lens according to claim 1, wherein: The optical part further includes a reflective surface, and the imaging light changes its traveling direction through the reflective surface.

16. An electronic device, characterized in that: Include: The imaging lens according to claim 1.

17. An imaging lens, characterized in that: Include: An optical element, wherein the optical element is a light-transmitting element and comprises: An optical unit, comprising: an incident surface, an imaging light enters the optical element from the incident surface; and an exit surface, through which the imaging light leaves the optical element; and a peripheral portion, which is farther from an optical axis of the imaging lens than the optical portion, and the peripheral portion includes: At least one connecting surface, connecting the incident surface and the exit surface; as well as A plurality of air barriers are disposed on at least a portion of the surface of the outer peripheral portion, and the air barriers are recessed from at least a portion of the surface toward the optical axis; The concave contour of the air barrier includes at least one of a dot shape and a line shape.

18. The imaging lens according to claim 17, wherein: The air barriers are regularly arranged along a first direction.

19. The imaging lens according to claim 18, characterized in that: The concave profile of the air barrier is a curved profile.

20. The imaging lens according to claim 19, characterized in that: The minimum angle formed by the curved profile of the air barrier is θab, which satisfies the following conditions: 50 degrees <θab <180 degrees.

21. The imaging lens according to claim 18, wherein: The air barriers are further regularly arranged along a second direction different from the first direction.

22. The imaging lens according to claim 21, characterized in that: The extension paths of at least two of the air barriers are intertwined with each other.

23. The imaging lens according to claim 18, wherein: The concave width of each of the air barriers is Wab, which satisfies the following conditions: 0.008mm≤Wab≤0.07mm.

24. The imaging lens according to claim 23, characterized in that: The concave width of each of the air barriers is Wab, which satisfies the following conditions: 0.012mm≤Wab≤0.05mm.

25. The imaging lens according to claim 17, wherein: The concave profile of the air barrier is a linear concave profile, and the linear concave profile is formed by a plurality of continuous dot-shaped concave portions.

26. The imaging lens according to claim 17, wherein: The outer peripheral portion further includes a reduction surface, the reduction surface is adjacent to the at least one connecting surface and is closer to the optical axis than the at least one connecting surface, and the air barrier is disposed on the reduction surface.

27. The imaging lens according to claim 17, wherein: The outer peripheral portion further includes an injection mark, the injection mark is arranged on the at least one connecting surface, and the air barrier is arranged on the at least one connecting surface.

28. The imaging lens according to claim 27, characterized in that: The sweep angle of the injection mark centered on the optical axis is θg, which satisfies the following conditions: 14 degrees <θg <45 degrees.

29. The imaging lens according to claim 27, wherein: The maximum outer diameter of the optical element in a direction perpendicular to the optical axis is D, and the shortest distance between the injection mark and the exit surface in a direction perpendicular to the optical axis is H, which satisfies the following conditions: 0.01 <H / D<0.2。 30. The imaging lens according to claim 29, wherein: The thickness of the outer peripheral portion in a direction parallel to the optical axis is ET, and the maximum outer diameter of the optical element in a direction perpendicular to the optical axis is D, which satisfies the following conditions: 1.6 <D / ET<8.8。 31. The imaging lens according to claim 30, characterized in that: At least one of the incident surface and the exit surface is non-circular.

32. The imaging lens according to claim 17, wherein: The optical part further includes a reflective surface, and the imaging light changes its traveling direction through the reflective surface.

33. An electronic device, characterized in that: Include: The imaging lens according to claim 17.

Images