Optical lenses and electronic equipment

Abstract

The present application discloses an optical lens and an electronic device. The optical lens comprises, in order from the first side to the second side along the optical axis, a first lens with optical power, whose first side surface is convex and whose second side surface is concave; a second lens with negative optical power, whose first side surface is concave; a third lens with positive optical power, whose second side surface is convex; a fourth lens with positive optical power; and a fifth lens with positive optical power, whose first side surface is convex; wherein an effective focal length F1 of the first lens, an effective focal length F5 of the fifth lens, a total effective focal length F of the optical lens, a curvature radius R5 of the first side surface of the third lens, a curvature radius R1 of the first side surface of the first lens, and a center thickness d1 of the first lens on the optical axis satisfy: |F1 / F|≥5, 1≤F5 / F≤5, ‑0.5≤F / R5≤0.5, and 1≤R1 / d1≤6.

Description

Technical Field

[0001] The present application relates to the field of optical elements, and more specifically, to an optical lens and an electronic device. Background Art

[0002] With the continuous development of science and technology, optical lenses are widely used in fields such as human-vehicle interaction, audio and video entertainment, and higher requirements are placed on optical lenses. For example, optical lenses need to meet requirements such as high resolution, miniaturization, and improved lighting efficiency.

[0003] However, while achieving high resolution, optical lenses are prone to aberration problems such as chromatic aberration, astigmatism, and distortion; or, while achieving miniaturization, optical lenses are prone to problems such as short back focal length, low telecentricity, low light efficiency, and small focusing or installation space reserved during module assembly; or, optical lenses have problems such as low production yield and high cost due to high requirements for assembly precision during the production process; or, in order to achieve good high and low temperature performance, optical lenses are usually made of all-glass, which leads to high production costs. Summary of the invention

[0004] The first aspect of the present application provides an optical lens, which includes a first lens with optical power, a second lens with negative optical power, a third lens with positive optical power, a fourth lens with positive optical power, and a fifth lens with positive optical power in sequence from the first side to the second side along the optical axis. The first side of the first lens is convex, and the second side is concave. The first side of the second lens is concave. The second side of the third lens is convex. The first side of the fifth lens is convex. The number of lenses with optical power in the optical lens is five. The optical lens satisfies: |F1 / F|≥5, 1≤F5 / F≤5, -0.5≤F / R5≤0.5 and 1≤R1 / d1≤6, wherein F1 is the effective focal length of the first lens, F5 is the effective focal length of the fifth lens, F is the total effective focal length of the optical lens, R5 is the radius of curvature of the first side of the third lens, R1 is the radius of curvature of the first side of the first lens, and d1 is the center thickness of the first lens on the optical axis.

[0005] According to an exemplary embodiment of the present application, the first lens has positive or negative power.

[0006] According to an exemplary embodiment of the present application, the second side surface of the second lens is a plane or a convex surface or a concave surface.

[0007] According to an exemplary embodiment of the present application, the first side surface of the third lens is a plane or a convex surface or a concave surface.

[0008] According to an exemplary embodiment of the present application, the first side surface of the fourth lens is a convex surface or a concave surface, and the second side surface is a convex surface or a concave surface.

[0009] According to an exemplary embodiment of the present application, the second side surface of the fifth lens is a plane or a convex surface or a concave surface.

[0010] According to an exemplary embodiment of the present application, the total effective focal length F of the optical lens and the entrance pupil diameter ENPD of the optical lens satisfy: F / ENPD≤1.2.

[0011] According to an exemplary embodiment of the present application, a radius of curvature R1 of the first side surface of the first lens and a central thickness d1 of the first lens on the optical axis satisfy: 1≤R1 / d1≤5.

[0012] According to an exemplary embodiment of the present application, a radius of curvature R9 of the first side surface of the fifth lens and an effective focal length F5 of the fifth lens satisfy: 0.05≤R9 / F5≤1.2.

[0013] According to an exemplary embodiment of the present application, the maximum clear aperture D1 of the first side surface of the first lens corresponding to the maximum field angle of the optical lens and the distance TL on the optical axis from the first side surface of the first lens to the second side surface of the fifth lens satisfy: 0.65≤D1 / TL≤0.85.

[0014] According to an exemplary embodiment of the present application, the back focal length BFL of the optical lens and the total optical length TTL of the optical lens satisfy: 0.35≤BFL / TTL≤0.40.

[0015] According to an exemplary embodiment of the present application, the maximum light clearance diameter D6 of the second side of the third lens corresponding to the maximum field angle of the optical lens and the maximum light clearance diameter D7 of the first side of the fourth lens corresponding to the maximum field angle of the optical lens satisfy: 0.9≤D6 / D7≤1.05.

[0016] According to an exemplary embodiment of the present application, the combined optical power φ23 of the second lens and the third lens and the entire optical power φ of the optical lens group satisfy: 0.002≤|φ23 / φ|≤0.2.

[0017] According to an exemplary embodiment of the present application, an air interval d2 between the first lens and the second lens on the optical axis and a distance TL from the first side surface of the first lens to the second side surface of the fifth lens on the optical axis satisfy: 0.2≤d2 / TL≤0.45.

[0018] According to an exemplary embodiment of the present application, an air interval d2 between the first lens and the second lens on the optical axis and a distance TL from the first side surface of the first lens to the second side surface of the fifth lens on the optical axis satisfy: 0.25≤d2 / TL≤0.41.

[0019] According to an exemplary embodiment of the present application, the effective focal length F4 of the fourth lens and the total effective focal length F of the optical lens satisfy: 1≤F4 / F≤4.

[0020] According to an exemplary embodiment of the present application, an effective focal length F4 of the fourth lens and a center thickness d8 of the fourth lens on the optical axis satisfy: 2≤F4 / d8≤40.

[0021] According to an exemplary embodiment of the present application, the effective focal length F5 of the fifth lens and the total effective focal length F of the optical lens satisfy: 1≤F5 / F≤4.

[0022] According to an exemplary embodiment of the present application, an air interval d9 between the fourth lens and the fifth lens on the optical axis, a radius of curvature R9 of the first side surface of the fifth lens, and an effective focal length F5 of the fifth lens satisfy: 0.05 mm ≤ d9 × R9 / F5 ≤ 1 mm.

[0023] According to an exemplary embodiment of the present application, the maximum clear aperture D9 of the first side of the fifth lens corresponding to the maximum field angle of the optical lens, the back focal length BFL of the optical lens and the image height H corresponding to the maximum field angle of the optical lens satisfy: 85mm≤D9×BFL / H≤110mm.

[0024] According to an exemplary embodiment of the present application, the maximum clear aperture D8 of the second side of the fourth lens corresponding to the maximum field angle of the optical lens and the maximum clear aperture D9 of the first side of the fifth lens corresponding to the maximum field angle of the optical lens satisfy: 0.95≤D8 / D9≤1.2.

[0025] According to an exemplary embodiment of the present application, the optical lens satisfies at least one of the following conditional expressions:

[0026] 0.8≤DST / F≤1.5; 0.55≤R1 / D1≤0.75; 0.8≤R1 / R2≤1.25; 0.5≤BFL / TL≤0.7; 0.1≤SAG2 / d2≤0.6; 0 .5≤F4 / D7≤5; 0≤(D1-D2) / D2≤0.5; 56.5°≤(FOV×F) / H≤61°; 16≤TTL / H / θ≤18.5; 0.002≤|(HF×θ) / (F×θ)|≤0.07; 2.4≤F / H≤3; 0.15≤arctan(SAG1 / D1)≤0.3; 0.5≤R3 / F2≤1.2; 0.8≤|SAG1 / SAG2|≤1.8; 0≤|R1 / F1|≤0.15; -1.1≤F2 / F≤-0.5; 0.5≤F3 / F≤1.5; 1.3≤F5 / F≤3.2; 2.19≤R1 / d1≤4.52;

[0027] Wherein, DST is the effective aperture of the aperture in the optical lens, R1 is the radius of curvature of the first side of the first lens, D1 is the maximum aperture of the first side of the first lens corresponding to the maximum field angle of the optical lens, R2 is the radius of curvature of the second side of the first lens, BFL is the back focal length of the optical lens, TL is the distance from the first side of the first lens to the second side of the fifth lens on the optical axis, TTL is the total optical length of the optical lens, SAG2 is the vector height at the maximum aperture of the second side of the first lens corresponding to the maximum field angle of the optical lens, d2 is the air gap between the first lens and the second lens on the optical axis, F4 is the effective focal length of the fourth lens, and D7 is the maximum field angle of the optical lens corresponding to the maximum field angle of the optical lens. The maximum clear aperture of the first side surface of the fourth lens, D2 is the maximum clear aperture of the second side surface of the first lens corresponding to the maximum field angle of the optical lens, F is the total effective focal length of the optical lens, FOV is the maximum field angle of the optical lens, H is the image height corresponding to the maximum field angle of the optical lens, θ is the radian value of the maximum field angle of the optical lens, SAG1 is the vector height at the maximum clear aperture of the first side surface of the first lens corresponding to the maximum field angle of the optical lens, R3 is the radius of curvature of the first side surface of the second lens, F1 is the effective focal length of the first lens, F2 is the effective focal length of the second lens, F3 is the effective focal length of the third lens, F5 is the effective focal length of the fifth lens, and d1 is the center thickness of the first lens on the optical axis.

[0028] According to an exemplary embodiment of the present application, the optical lens satisfies at least one of the following conditional expressions:

[0029] F / ENPD≤1.02;0.35≤R9 / F5≤1.06;0.93≤DST / F≤1.29;0.69≤D1 / TL≤0.80;0.57≤R1 / D1≤0.71;0.93≤R1 / R2≤1.20;|F1 / F|≥7;-0.23≤F / R5≤0.3;0.96≤D6 / D7≤1;0.32≤SAG2 / d2≤0.58;1.26≤F4 / D7≤3.50;0.04≤(D1-D2) / D2≤0.27;0.007≤|φ23 / φ|≤0.145;1.61≤F4 / F≤3.6;5.7≤F4 / d8≤29.6;0.36≤BFL / TTL≤0.40;0.57≤BFL / TL≤0.67;0.07mm≤d9×R9 / F5≤0.66mm;92mm≤D9×BFL / H≤105mm;0.99≤D8 / D9≤1.15;57.57°≤(FOV×F) / H≤60.37°;16.35≤TTL / H / θ≤17.98;0.005≤|(H-F×θ) / (F×θ)|≤0.051;2.54≤F / H≤2.88;0.17≤arctan(SAG1 / D1)≤0.265;0.68≤R3 / F2≤1.04;0.92≤|SAG1 / SAG2|≤1.43;0≤|R1 / F1|≤0.091;-1.03≤F2 / F≤-0.72;0.88≤F3 / F≤1.45;

[0030] Wherein, F is the total effective focal length of the optical lens, ENPD is the entrance pupil diameter of the optical lens, R9 is the radius of curvature of the first side surface of the fifth lens, F5 is the effective focal length of the fifth lens, DST is the effective aperture of the aperture in the optical lens, R1 is the radius of curvature of the first side surface of the first lens, D1 is the maximum aperture of the first side surface of the first lens corresponding to the maximum field of view of the optical lens, TL is the distance on the optical axis from the first side surface of the first lens to the second side surface of the fifth lens, R2 is the radius of curvature of the second side surface of the first lens, F1 is the effective focal length of the first lens, R5 is the radius of curvature of the first side surface of the third lens, D6 is the maximum aperture of the second side surface of the third lens corresponding to the maximum field of view of the optical lens, D7 is the maximum aperture of the first side surface of the fourth lens corresponding to the maximum field of view of the optical lens, SAG2 is the vector height at the maximum aperture of the second side surface of the first lens corresponding to the maximum field of view of the optical lens, d2 is the air gap between the first lens and the second lens on the optical axis, and F4 is The effective focal length of the fourth lens, D2 is the maximum light-clearing aperture of the second side surface of the first lens corresponding to the maximum field of view of the optical lens, φ23 is the combined optical power of the second lens and the third lens, φ is the optical power of the entire group of the optical lens, d8 is the center thickness of the fourth lens on the optical axis, BFL is the back focal length of the optical lens, TTL is the total optical length of the optical lens, d9 is the air interval between the fourth lens and the fifth lens on the optical axis, D9 is the maximum light-clearing aperture of the first side surface of the fifth lens corresponding to the maximum field of view of the optical lens, D8 is the maximum light-clearing aperture of the second side surface of the fourth lens corresponding to the maximum field of view of the optical lens, FOV is the maximum field of view of the optical lens, H is the image height corresponding to the maximum field of view of the optical lens, θ is the radian value of the maximum field of view of the optical lens, SAG1 is the vector height at the maximum light-clearing aperture of the first side surface of the first lens corresponding to the maximum field of view of the optical lens, R3 is the radius of curvature of the first side surface of the second lens, F2 is the effective focal length of the second lens, and F3 is the effective focal length of the third lens.

[0031] According to an exemplary embodiment of the present application, the optical lens satisfies at least one of the following conditional expressions:

[0032] 57.5773°≤(FOV×F) / H≤60.3655°;16.3533≤TTL / H / θ≤17.9763;0.0050≤|(H-F×θ) / (F×θ)|≤0.0509;0.3648≤BFL / TTL≤0.3981;0.5743≤BFL / TL≤0.6614;2.5745≤F / H≤2.8759;0.9088≤DST / F≤1.2363;1.2669≤F4 / D7≤3.4936;7.7018≤|F1 / F|≤16225.5488;0.3214≤SAG2 / d2≤0.5738;0.1744≤arctan(SAG1 / D1)≤0.2608;0≤|R1 / F1|≤0.0902;0.0079≤|φ23 / φ|≤0.1434;0.6873≤R3 / F2≤1.0396;1.3943≤F5 / F≤3.1509;0.9247≤|SAG1 / SAG2|≤1.4292;92.2381mm≤D9×BFL / H≤103.8425mm;0.2568≤d2 / TL≤0.4063;0.3626≤R9 / F5≤1.0593;0.9622≤D6 / D7≤0.9925;0.9345≤R1 / R2≤1.1998;0.0725mm≤d9×R9 / F5≤0.6560mm;2.1934≤R1 / d1≤4.5187;0.5743≤R1 / D1≤0.7045;0.9927≤D8 / D9≤1.11;-1.0244≤F2 / F≤-0.7238;0.8811≤F3 / F≤1.4391;1.6177≤F4 / F≤3.5970;0.0422≤(D1-D2) / D2≤0.2618;0.7045≤D1 / TL≤0.7994;5.7964≤F4 / d8≤29.5481;-0.2263≤F / R5≤0.2962;

[0033] Wherein, FOV is the maximum field of view of the optical lens, F is the total effective focal length of the optical lens, H is the image height corresponding to the maximum field of view of the optical lens, TTL is the total optical length of the optical lens, θ is the radian value of the maximum field of view of the optical lens, BFL is the back focal length of the optical lens, TL is the distance from the first side surface of the first lens to the second side surface of the fifth lens on the optical axis, DST is the effective clear aperture of the aperture in the optical lens, F4 is the effective focal length of the fourth lens, D7 is the maximum clear aperture of the first side surface of the fourth lens corresponding to the maximum field of view of the optical lens, D1 is the maximum clear aperture of the first side surface of the first lens corresponding to the maximum field of view of the optical lens, D2 is the maximum clear aperture of the second side surface of the first lens corresponding to the maximum field of view of the optical lens, F1 is the effective focal length of the first lens, SAG2 is the vector height at the maximum clear aperture of the second side surface of the first lens corresponding to the maximum field of view of the optical lens, d2 is the air interval between the first lens and the second lens on the optical axis, SAG1 is the maximum field of view of the optical lens The vector height at the maximum clear aperture of the first side surface of the first lens corresponding to the field angle, R1 is the curvature radius of the first side surface of the first lens, φ23 is the combined optical power of the second lens and the third lens, φ is the entire optical power of the optical lens group, R3 is the curvature radius of the first side surface of the second lens, F2 is the effective focal length of the second lens, F3 is the effective focal length of the third lens, F5 is the effective focal length of the fifth lens, D9 is the maximum clear aperture of the first side surface of the fifth lens corresponding to the maximum field angle of the optical lens, R9 is the curvature radius of the first side surface of the fifth lens, D6 is the maximum clear aperture of the second side surface of the third lens corresponding to the maximum field angle of the optical lens, R2 is the curvature radius of the second side surface of the first lens, d9 is the air interval between the fourth lens and the fifth lens on the optical axis, d1 is the center thickness of the first lens on the optical axis, D8 is the maximum clear aperture of the second side surface of the fourth lens corresponding to the maximum field angle of the optical lens, d8 is the center thickness of the fourth lens on the optical axis, and R5 is the curvature radius of the first side surface of the third lens.

[0034] A second aspect of the present application provides an electronic device comprising the optical lens in the above exemplary embodiment and an imaging element for converting an optical image formed by the optical lens into an electrical signal.

[0035] The optical lens according to the embodiment of the present application includes five lenses with optical power, which are respectively a first lens, a second lens, a third lens, a fourth lens and a fifth lens arranged in sequence from the first side to the second side along the optical axis, wherein the first lens with optical power has a convex first side and a concave second side; the second lens with negative optical power has a concave first side; the third lens with positive optical power has a convex second side; the fourth lens with positive optical power; the fifth lens with positive optical power has a convex first side. The optical lens satisfies: |F1 / F|≥5, 1≤F5 / F≤5, -0.5≤F / R5≤0.5 and 1≤R1 / d1≤6, wherein F1 is the effective focal length of the first lens, F5 is the effective focal length of the fifth lens, F is the total effective focal length of the optical lens, R5 is the radius of curvature of the first side of the third lens, R1 is the radius of curvature of the first side of the first lens, and d1 is the center thickness of the first lens on the optical axis. By rationally configuring the ratio of the effective focal length of the first lens to the total effective focal length of the optical lens and the ratio of the radius of curvature of the first side surface of the first lens to the center thickness of the first lens on the optical axis, the radius of curvature of the first side surface of the first lens can be smaller, which is convenient for collecting large-angle light entering the system, and the center thickness of the first lens on the optical axis is larger, which is conducive to smoothing the light. At this time, the larger the focal length of the first lens, the more conducive it is to collecting large-angle light and smoothly transitioning it to the rear system, providing conditions for a large aperture lens. At the same time, by reasonably configuring the ratio of the total effective focal length of the optical lens to the radius of curvature of the first side surface of the third lens, it is possible to effectively receive large-angle light from the second lens, increase the amount of light transmitted, and make the light smoothly transition to the rear system, thereby providing conditions for achieving a long back focus; at the same time, controlling the ratio of the effective focal length of the fifth lens to the total effective focal length of the optical lens within a certain range is conducive to achieving a long back focus and a small main light angle of the optical lens, while ensuring the overall length of the optical lens while controlling the total optical length of the optical lens within a reasonable range; the optical lens can be made to meet at least one of the beneficial effects of long back focus, high light throughput, low sensitivity, miniaturization, low cost, high light efficiency utilization rate and small main light angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings, in which:

[0037] Figure 1 A schematic structural diagram of an optical lens according to Embodiment 1 of the present application is shown;

[0038] Figure 2 shows a Chief Ray Angle (CRA) curve of the optical lens according to Example 1 of the present application;

[0039] Figure 3A schematic structural diagram of an optical lens according to Embodiment 2 of the present application is shown;

[0040] Figure 4 shows a main light angle curve of the optical lens according to Example 2 of the present application;

[0041] Figure 5 A schematic structural diagram of an optical lens according to Embodiment 3 of the present application is shown;

[0042] Figure 6 shows a main light angle curve of the optical lens according to Example 3 of the present application;

[0043] Figure 7 A schematic structural diagram of an optical lens according to Embodiment 4 of the present application is shown;

[0044] Figure 8 shows a main light angle curve of the optical lens according to Example 4 of the present application;

[0045] Fig. 9 A schematic structural diagram of an optical lens according to Embodiment 5 of the present application is shown;

[0046] Fig.10 shows a principal light angle curve of the optical lens according to Example 5 of the present application;

[0047] Fig.11 A schematic structural diagram of an optical lens according to Embodiment 6 of the present application is shown;

[0048] Fig.12 shows a main light angle curve of the optical lens according to Example 6 of the present application;

[0049] Fig.13 A schematic structural diagram of an optical lens according to Embodiment 7 of the present application is shown;

[0050] Fig.14 shows a principal light angle curve of the optical lens according to Example 7 of the present application;

[0051] Fig.15 A schematic structural diagram of an optical lens according to Example 8 of the present application is shown;

[0052] Fig.16 shows a main light angle curve of the optical lens according to Example 8 of the present application;

[0053] Fig.17 A schematic structural diagram of an optical lens according to Example 9 of the present application is shown;

[0054] Fig.18 shows a main light angle curve of the optical lens according to Example 9 of the present application;

[0055] Fig.19 A schematic structural diagram of an optical lens according to Embodiment 10 of the present application is shown;

[0056] Fig. 20 shows a principal light angle curve of the optical lens according to Example 10 of the present application;

[0057] Fig.21 A schematic structural diagram of an optical lens according to Example 11 of the present application is shown;

[0058] Fig. 22 shows a principal light angle curve of the optical lens according to Example 11 of the present application;

[0059] Fig.23 A schematic structural diagram of an optical lens according to Embodiment 12 of the present application is shown;

[0060] Fig.24 shows a principal light angle curve of the optical lens according to Example 12 of the present application;

[0061] Fig.25 A schematic structural diagram of an optical lens according to Example 13 of the present application is shown;

[0062] Fig.26 shows a principal light angle curve of the optical lens according to Example 13 of the present application;

[0063] Fig. 27 A schematic structural diagram of an optical lens according to Embodiment 14 of the present application is shown;

[0064] Fig.28 shows a principal light angle curve of the optical lens according to Example 14 of the present application;

[0065] Fig.29 A schematic structural diagram of an optical lens according to Embodiment 15 of the present application is shown;

[0066] Fig.30 shows a principal light angle curve of the optical lens according to Example 15 of the present application;

[0067] Fig.31 A schematic structural diagram of an optical lens according to Example 16 of the present application is shown;

[0068] Fig.32 shows a principal light angle curve of the optical lens according to Example 16 of the present application;

[0069] Fig.33 A schematic structural diagram of an optical lens according to Embodiment 17 of the present application is shown;

[0070] Fig.34shows a principal light angle curve of the optical lens according to Example 17 of the present application;

[0071] Fig.35 A schematic structural diagram of an optical lens according to Example 18 of the present application is shown;

[0072] Fig.36 shows a principal light angle curve of the optical lens according to Example 18 of the present application;

[0073] Fig.37 A schematic structural diagram of an optical lens according to Example 19 of the present application is shown;

[0074] Fig.38 shows a principal light angle curve of the optical lens according to Example 19 of the present application;

[0075] Fig.39 A schematic structural diagram of an optical lens according to Embodiment 20 of the present application is shown;

[0076] Fig.40 shows a principal light angle curve of the optical lens according to Example 20 of the present application;

[0077] Fig.41 A schematic structural diagram of an optical lens according to Example 21 of the present application is shown;

[0078] Fig.42 shows a principal light angle curve of the optical lens according to Example 21 of the present application;

[0079] Fig.43 A schematic structural diagram of an optical lens according to Example 22 of the present application is shown;

[0080] Fig.44 shows a principal light angle curve of the optical lens according to Example 22 of the present application;

[0081] Fig.45 A schematic structural diagram of an optical lens according to Example 23 of the present application is shown;

[0082] Fig.46 shows a principal light angle curve of the optical lens according to Example 23 of the present application;

[0083] Fig.47 A schematic structural diagram of an optical lens according to Example 24 of the present application is shown;

[0084] Fig.48 shows a principal light angle curve of the optical lens according to Example 24 of the present application;

[0085] Fig.49 A schematic structural diagram of an optical lens according to Example 25 of the present application is shown;

[0086] Fig.50 shows a principal light angle curve of the optical lens according to Example 25 of the present application;

[0087] Fig.51 A schematic structural diagram of an optical lens according to Example 26 of the present application is shown;

[0088] Fig.52 shows a principal light angle curve of the optical lens according to Example 26 of the present application;

[0089] Fig.53 A schematic structural diagram of an optical lens according to Example 27 of the present application is shown;

[0090] Fig.54 shows a principal light angle curve of the optical lens according to Example 27 of the present application;

[0091] Fig.55 A schematic structural diagram of an optical lens according to Example 28 of the present application is shown;

[0092] Fig.56 The main light angle curve of the optical lens according to Example 28 of the present application is shown. DETAILED DESCRIPTION

[0093] In order to better understand the present application, a more detailed description will be made of various aspects of the present application with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of exemplary embodiments of the present application, and do not limit the scope of the present application in any way. Throughout the specification, the same figure numerals refer to the same elements.

[0094] It should be noted that in this specification, the expressions of first, second, third, etc. are only used to distinguish one feature from another feature, and do not represent any limitation on the features. Therefore, without departing from the teaching of the present application, the first lens discussed below may also be referred to as the second lens or the third lens.

[0095] In the drawings, the thickness, size and shape of the lenses have been slightly exaggerated for ease of illustration. Specifically, the shapes of the spherical or aspherical surfaces shown in the drawings are shown by way of example. That is, the shapes of the spherical or aspherical surfaces are not limited to those shown in the drawings. The drawings are for illustration only and are not drawn strictly to scale.

[0096] In this article, the paraxial region refers to the region near the optical axis. If the lens surface is convex and the position of the convex surface is not defined, it means that the lens surface is convex at least in the paraxial region; if the lens surface is concave and the position of the concave surface is not defined, it means that the lens surface is concave at least in the paraxial region. The surface of each lens closest to the first side is called the first side surface of the lens, and the surface of each lens closest to the second side is called the second side surface of the lens.

[0097] It should also be understood that the terms "include", "comprising", and / or "having", when used in this specification, indicate the presence of the stated features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof. In addition, when describing embodiments of the present application, the term "may" is used to indicate "one or more embodiments of the present application". Furthermore, the term "exemplary" is intended to refer to an example or illustration.

[0098] Unless otherwise defined, all terms (including technical terms and scientific terms) used in this article have the same meaning as commonly understood by ordinary technicians in the field to which this application belongs. It should also be understood that terms (such as terms defined in commonly used dictionaries) should be interpreted as having the same meaning as their meaning in the context of the relevant technology, and will not be interpreted in an idealized or overly formal sense unless explicitly defined in this article.

[0099] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0100] The features, principles and other aspects of the present application are described in detail below.

[0101] The optical lens according to an exemplary embodiment of the present application may include, for example, five lenses having optical power, namely, a first lens, a second lens, a third lens, a fourth lens and a fifth lens, and the five lenses are arranged in sequence from the first side to the second side along the optical axis.

[0102] In an exemplary embodiment, the optical lens may be used as, for example, an imaging lens, in which case the first side of the optical lens may be an object side and the second side may be an image side. Light from the object side may be imaged on the image side. The second side of the optical lens is provided with an imaging surface of the optical lens.

[0103] In an exemplary embodiment, the optical lens can be used as, for example, a projection lens or a laser radar transmitting end lens. In this case, the second side of the optical lens can be an image source side, and the first side can be an imaging side. Light from the image source side can be imaged on the imaging side. The second side of the optical lens is provided with an image source surface of the optical lens.

[0104] In an exemplary embodiment, the first lens may have positive focal power, and its first side surface may be, for example, a convex surface, and its second side surface may be, for example, a concave surface. The first lens is designed as a positive lens, which has a converging effect on light, and can effectively converge the central light and the edge light of each field of view area, thereby increasing the illumination of the optical lens. In addition, the second side surface of the first lens is set as a concave surface, which is conducive to reducing the aperture of the first lens and realizing the miniaturization of the optical lens.

[0105] In an exemplary embodiment, the first lens may have a negative optical power, and its first side surface may be, for example, a convex surface, and its second side surface may be, for example, a concave surface. The first lens is designed as a negative lens convex to the first side, which can collect light from the first side and properly diverge the light, which is conducive to deflecting light with a large field of view. At the same time, the second side surface of the first lens is set as a concave surface, which is conducive to further deflecting light with a large field of view, thereby reducing the light aperture of the second lens.

[0106] In example embodiments, the second lens may be cemented with the third lens to form a cemented lens.

[0107] In an exemplary embodiment, the second lens may have a negative optical power, and its first side surface may be, for example, a concave surface, and its second side surface may be, for example, a concave surface. The second lens is designed as a negative lens, which can collect light from the first lens and further diverge it, adjust the deflection angle of the light, and the second lens is biconcave, which is conducive to reducing the sensitivity of the optical lens. In addition, the first side surface of the second lens is set as a concave surface, which can cooperate with the first lens, which is conducive to converging the light in the edge field of view area; the second side surface of the second lens is set as a concave surface, which is conducive to reducing the deflection angle of the light, smoothing the light trend, and thus reducing the sensitivity of the optical lens.

[0108] In an exemplary embodiment, the second lens may have a negative optical power, and its first side surface may be, for example, a concave surface, and the second side surface may be, for example, a plane. The second lens is designed as a negative lens, which can collect light from the first lens and further diverge it, adjust the deflection angle of the light, and the combination of the concave surface and the plane of the second lens is conducive to increasing the back focal length of the optical lens. In addition, the first side surface of the second lens is set as a concave surface, which can cooperate with the first lens and is conducive to converging the light in the edge field of view area; the second side surface of the second lens is set as a plane, which can maintain the divergence of the light, and re-converge the light through the rear lens, which is conducive to increasing the back focal length of the optical lens.

[0109] In an exemplary embodiment, the second lens may have a negative optical power, and its first side surface may be, for example, a concave surface, and its second side surface may be, for example, a convex surface. The second lens is designed as a negative lens, which can collect light from the first lens and further diverge it, adjust the deflection angle of the light, so that the diverged light can smoothly enter the rear system, and achieve a smooth transition of light to the rear lens. In addition, the first side surface of the second lens is set as a concave surface, which can cooperate with the first lens, which is conducive to converging the light in the edge field of view area; the second side surface of the second lens is set as a convex surface, which can effectively adjust the divergence angle of the light, achieve a smooth trend of the light, and reduce the sensitivity of the rear lens.

[0110] In an exemplary embodiment, the optical lens may further include an aperture, which may be, for example, disposed between the third lens and the fourth lens. By disposing the aperture between the third lens and the fourth lens, it is beneficial for the light to smoothly transition to the rear of the system, reduce the aperture of the rear lens, and reduce the assembly sensitivity of the optical lens. It should be understood that the aperture is disposed between the third lens and the fourth lens for exemplary purposes only, and the present application does not impose any specific limitation thereto, and the aperture may also be disposed at other positions according to actual needs.

[0111] In an exemplary embodiment, the third lens may have positive power, and its first side surface may be, for example, a concave surface, and its second side surface may be, for example, a convex surface. The third lens is designed as a meniscus lens with positive power, and its first side surface is a concave surface, which is conducive to collecting the light passing through the second lens, and its second side surface is a convex surface, which can make the light transition to the rear system as smoothly as possible, reduce the light angle, and reduce the sensitivity of the rear system.

[0112] In an exemplary embodiment, the third lens may have positive focal power, and its first side surface may be, for example, a plane, and its second side surface may be, for example, a convex surface. The third lens is designed as a positive lens, and its first side surface is a plane, and its second side surface is a convex surface, so that the light emitted from the second lens can maintain an upward trend, achieve a high light throughput of the optical lens, and improve the illumination of the optical lens. In addition, the first side surface of the third lens is set as a plane, which is conducive to a smooth transition of the light trend of the entire system and reduces the sensitivity of the optical lens.

[0113] In an exemplary embodiment, the third lens may have positive focal power, and its first side surface may be, for example, a convex surface, and its second side surface may be, for example, a convex surface. The third lens is designed as a biconvex positive lens, which is conducive to expanding the aperture of the third lens, increasing the amount of light passing, and is conducive to as much light as possible entering the fourth lens, further compressing the aperture of the fourth lens, and realizing the miniaturization of the optical lens.

[0114] In an exemplary embodiment, the fourth lens may have positive optical power, and its first side surface may be, for example, a concave surface, and its second side surface may be, for example, a convex surface. The fourth lens is a positive lens, and is a meniscus lens convex to the second side. The effective focal length of the fourth lens is large, which is conducive to making the light passing through the third lens smoothly transition to the fourth lens, thereby reducing the sensitivity of the optical lens.

[0115] In an exemplary embodiment, the fourth lens may have positive optical power, and its first side surface may be, for example, a convex surface, and its second side surface may be, for example, a concave surface. The fourth lens is designed as a positive lens, and is a meniscus lens convex to the first side, which is conducive to receiving large-angle light passing through the third lens, reducing the light collection pressure of the fifth lens, and making the light passing through the third lens smoothly transition to the fifth lens.

[0116] In an exemplary embodiment, the fourth lens may have positive power, and its first side surface may be, for example, a convex surface, and its second side surface may be, for example, a convex surface. The fourth lens is designed as a positive lens, which can further shrink the light angle in cooperation with the aperture, facilitate the collection of field light by the rear lens, reduce the aberration of the optical lens, and improve the illumination of the optical lens.

[0117] In an exemplary embodiment, the fifth lens may have positive focal power, and its first side surface may be, for example, a convex surface, and its second side surface may be, for example, a convex surface. The fifth lens is designed as a biconvex positive lens, which can have a converging effect on light, effectively converge the central light and the edge light of each field of view, and increase the illumination of the optical lens. In addition, the first side surface of the fifth lens is a convex surface, which is conducive to converging light and increasing the illumination of the optical lens; the second side surface of the fifth lens is a convex surface, which is conducive to increasing the back focal length, and is convenient for assembly and focusing of the module.

[0118] In an exemplary embodiment, the fifth lens may have positive optical power, and its first side surface may be, for example, a convex surface, and its second side surface may be, for example, a plane surface. The fifth lens is designed as a positive lens convex to the first side, and the first side surface of the fifth lens is a convex surface, which is conducive to converging large-angle light and reducing the sensitivity of the optical lens; at the same time, the second side surface of the fifth lens is a plane, which is conducive to maintaining the convergence trend of light and effectively increasing the back focal length of the optical lens.

[0119] In an exemplary embodiment, the fifth lens may have positive focal power, and its first side surface may be, for example, a convex surface, and its second side surface may be, for example, a concave surface. The fifth lens is designed as a convex-concave positive lens, which can have a converging effect on light, effectively converge the central light and the edge light of each field of view, and increase the illumination of the optical lens. In addition, the first side surface of the fifth lens is a convex surface, which is conducive to converging light and increasing the illumination of the optical lens; the second side surface of the fifth lens is a concave surface, which is conducive to further changing the deflection angle of the light, increasing the back focal length, and improving the telecentricity of the main light, so as to facilitate converging the light to the imaging surface or image source surface on the second side.

[0120] In an exemplary embodiment, the optical lens may further include a filter between the fifth lens and the imaging surface or the image source surface to filter light with different wavelengths. The optical lens may also be provided with a protective glass between the filter and the imaging surface according to actual needs to prevent internal components (e.g., chips) of the optical lens from being damaged.

[0121] In an exemplary embodiment, the optical lens may further include a photosensitive element disposed on the second side. Optionally, the photosensitive element disposed on the second side may be a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS).

[0122] In an exemplary embodiment, the total effective focal length F of the optical lens and the entrance pupil diameter ENPD of the optical lens may satisfy: F / ENPD≤1.2. Further, F / ENPD≤1.02. Reasonable configuration of the ratio of the total effective focal length of the optical lens to the entrance pupil diameter of the optical lens can make the optical lens have a smaller aperture number, which is conducive to increasing the light throughput of the optical lens.

[0123] In an exemplary embodiment, the radius of curvature R9 of the first side surface of the fifth lens and the effective focal length F5 of the fifth lens may satisfy: 0.05≤R9 / F5≤1.2. Further, 0.35≤R9 / F5≤1.06. Further, 0.3626≤R9 / F5≤1.0593. Reasonable configuration of the ratio of the radius of curvature of the first side surface of the fifth lens to the effective focal length of the fifth lens is conducive to collecting large-angle light entering the rear lens, reducing the loss of rear-end light caused by the large aperture lens, and realizing stable contraction of small light.

[0124] In an exemplary embodiment, the effective aperture DST of the aperture in the optical lens and the total effective focal length F of the optical lens may satisfy: 0.8≤DST / F≤1.5. Further, 0.90≤DST / F≤1.29. Still further, 0.9088≤DST / F≤1.2363. Reasonable configuration of the ratio of the effective aperture of the aperture in the optical lens to the total effective focal length of the optical lens can make the optical lens have a larger aperture, which is conducive to increasing the light throughput of the optical lens.

[0125] In an exemplary embodiment, the maximum light-clearance D1 of the first side surface of the first lens corresponding to the maximum field of view of the optical lens and the distance TL on the optical axis from the first side surface of the first lens to the second side surface of the fifth lens may satisfy: 0.65≤D1 / TL≤0.85. Further, 0.69≤D1 / TL≤0.80. Still further, 0.7045≤D1 / TL≤0.7994. Reasonable configuration of the ratio of the maximum light-clearance of the first side surface of the first lens corresponding to the maximum field of view of the optical lens to the distance on the optical axis from the first side surface of the first lens to the second side surface of the fifth lens is conducive to the first lens collecting as much large-angle light as possible and improving the light throughput of the optical lens.

[0126] In an exemplary embodiment, the radius of curvature R1 of the first side surface of the first lens and the maximum light aperture D1 of the first side surface of the first lens corresponding to the maximum field angle of the optical lens may satisfy: 0.55≤R1 / D1≤0.75. Further, 0.57≤R1 / D1≤0.71. Still further, 0.5743≤R1 / D1≤0.7045. Reasonable configuration of the ratio of the radius of curvature of the first side surface of the first lens to the maximum light aperture of the first side surface of the first lens corresponding to the maximum field angle of the optical lens is conducive to collecting as much large-angle light as possible, improving the light throughput of the optical lens, and at the same time allowing the collected light to smoothly transition to the rear lens, while achieving high light throughput while effectively avoiding the influence of stray light on imaging.

[0127] In an exemplary embodiment, the radius of curvature R1 of the first side surface of the first lens and the center thickness d1 of the first lens on the optical axis may satisfy: 1≤R1 / d1≤6. Preferably, 1≤R1 / d1≤5. Further, 2.19≤R1 / d1≤4.52. Still further, 2.1934≤R1 / d1≤4.5187. Reasonable configuration of the ratio of the radius of curvature of the first side surface of the first lens to the center thickness of the first lens on the optical axis is conducive to collecting as much large-angle light as possible, improving the light throughput of the optical lens, and at the same time allowing the collected light to smoothly transition to the rear lens, thereby reducing the sensitivity of the optical lens while achieving high light throughput.

[0128] In an exemplary embodiment, the radius of curvature R1 of the first side surface of the first lens and the radius of curvature R2 of the second side surface of the first lens may satisfy: 0.8≤R1 / R2≤1.25. Further, 0.93≤R1 / R2≤1.20. Still further, 0.9345≤R1 / R2≤1.1998. Reasonable configuration of the ratio of the radius of curvature of the first side surface of the first lens to the radius of curvature of the second side surface of the first lens can make the radius of curvature of the first side surface and the second side surface of the first lens close, which is conducive to the smooth transmission of light to the rear lens, realizes a large aperture of the rear lens, and improves the light throughput of the optical lens.

[0129] In an exemplary embodiment, the effective focal length F1 of the first lens and the total effective focal length F of the optical lens may satisfy: |F1 / F|≥5. Reasonable configuration of the ratio of the effective focal length of the first lens to the total effective focal length of the optical lens is conducive to achieving the thermal compensation performance of the glass-plastic hybrid lens and reducing the impact of temperature changes on imaging. Further, |F1 / F|≥7. Further, 7.7018≤|F1 / F|≤16225.5488. The larger the value of |F1 / F|, the more conducive it is for the first lens to collect as much light with a large field of view angle as possible, thereby increasing the light throughput of the optical lens.

[0130] In an exemplary embodiment, the total effective focal length F of the optical lens and the curvature radius R5 of the first side surface of the third lens may satisfy: -0.5≤F / R5≤0.5. Further, -0.23≤F / R5≤0.3. Still further, -0.2263≤F / R5≤0.2962. When the focal length of the third lens is constant, controlling the first side surface of the third lens to have a larger curvature radius is beneficial for receiving large-angle light from the front lens, increasing the light throughput of the optical lens, and at the same time, the received light can be smoothly transitioned to the rear lens, thereby increasing the resolution of the optical lens and reducing the sensitivity of the optical lens.

[0131] In an exemplary embodiment, the maximum light clearance diameter D6 of the second side surface of the third lens corresponding to the maximum field angle of the optical lens and the maximum light clearance diameter D7 of the first side surface of the fourth lens corresponding to the maximum field angle of the optical lens may satisfy: 0.9≤D6 / D7≤1.05. Further, 0.96≤D6 / D7≤1. Still further, 0.9622≤D6 / D7≤0.9925. By controlling the maximum light clearance diameter of the second side surface of the third lens corresponding to the maximum field angle of the optical lens to be close to the maximum light clearance diameter of the first side surface of the fourth lens corresponding to the maximum field angle of the optical lens, the transmission of light is facilitated. For example, large-angle light can be smoothly transitioned to the rear lens, reducing the sensitivity of the optical lens, while creating conditions for achieving a long back focus, high light efficiency utilization rate, and a small main light angle of the optical lens.

[0132] In an exemplary embodiment, the vector height SAG2 at the maximum clear aperture of the second side surface of the first lens corresponding to the maximum field angle of the optical lens and the air gap d2 between the first lens and the second lens on the optical axis may satisfy: 0.1≤SAG2 / d2≤0.6. Further, 0.32≤SAG2 / d2≤0.58. Still further, 0.3214≤SAG2 / d2≤0.5738. Reasonable configuration of the ratio of the vector height at the maximum clear aperture of the second side surface of the first lens corresponding to the maximum field angle of the optical lens to the air gap between the first lens and the second lens on the optical axis can effectively compress the large-angle light from the front lens and achieve a smooth transition of light from the first lens to the second lens.

[0133] In an exemplary embodiment, the effective focal length F4 of the fourth lens and the maximum aperture D7 of the first side of the fourth lens corresponding to the maximum field angle of the optical lens may satisfy: 0.5≤F4 / D7≤5. Further, 1.26≤F4 / D7≤3.50. Further, 1.2669≤F4 / D7≤3.4936. Reasonable configuration of the ratio of the effective focal length of the fourth lens to the maximum aperture D7 of the first side of the fourth lens corresponding to the maximum field angle of the optical lens can achieve a smooth transition of light and reduce the sensitivity of the optical lens.

[0134] In an exemplary embodiment, the maximum light clearance diameter D1 of the first side surface of the first lens corresponding to the maximum field angle of the optical lens and the maximum light clearance diameter D2 of the second side surface of the first lens corresponding to the maximum field angle of the optical lens may satisfy: 0≤(D1-D2) / D2≤0.5. Further, 0.04≤(D1-D2) / D2≤0.27. Still further, 0.0422≤(D1-D2) / D2≤0.2618. Reasonable configuration of the relationship between the maximum light clearance diameter of the first side surface of the first lens corresponding to the maximum field angle of the optical lens and the maximum light clearance diameter of the second side surface of the first lens corresponding to the maximum field angle of the optical lens is conducive to collecting as much large-angle light as possible, and smoothly transitioning the collected light to the rear lens, avoiding a sharp contraction of light, and reducing the sensitivity of the optical lens.

[0135] In an exemplary embodiment, the combined focal power φ23 of the second lens and the third lens and the overall focal power φ of the optical lens may satisfy: 0.002≤|φ23 / φ|≤0.2. Further, 0.007≤|φ23 / φ|≤0.145. Still further, 0.0079≤|φ23 / φ|≤0.1434. By controlling the ratio of the combined focal power of the second lens and the third lens to the overall focal power of the optical lens to be smaller, it is beneficial to reduce the deflection angle of the light in the second lens and the third lens, achieve a smooth transition of the light, and reduce the sensitivity of the optical lens.

[0136] In an exemplary embodiment, the air gap d2 between the first lens and the second lens on the optical axis and the distance TL from the first side surface of the first lens to the second side surface of the fifth lens on the optical axis may satisfy: 0.2≤d2 / TL≤0.45. Further, 0.25≤d2 / TL≤0.41. Further, 0.2568≤d2 / TL≤0.4063. Reasonable configuration of the ratio of the air gap between the first lens and the second lens on the optical axis to the distance from the first side surface of the first lens to the second side surface of the fifth lens on the optical axis is conducive to the smooth transition of light from the first lens to the second lens, thereby reducing the sensitivity of the optical lens.

[0137] In an exemplary embodiment, the effective focal length F4 of the fourth lens and the total effective focal length F of the optical lens may satisfy: 1≤F4 / F≤4. Further, 1.61≤F4 / F≤3.6. Further, 1.6177≤F4 / F≤3.5970. Reasonable configuration of the ratio of the effective focal length of the fourth lens to the total effective focal length of the optical lens can make the fourth lens have a larger focal length, which is conducive to reducing the degree of deflection of light, so that the light can smoothly transition from the fourth lens to the fifth lens, reducing the sensitivity of the optical lens.

[0138] In an exemplary embodiment, the effective focal length F4 of the fourth lens and the center thickness d8 of the fourth lens on the optical axis may satisfy: 2≤F4 / d8≤40. Further, 5.7≤F4 / d8≤29.6. Further, 5.7964≤F4 / d8≤29.5481. Reasonable configuration of the ratio of the effective focal length of the fourth lens to the center thickness of the fourth lens on the optical axis can make the fourth lens have a larger focal length, which is conducive to the smooth transition of light from the fourth lens to the fifth lens, improves the resolution of the optical lens, and reduces the sensitivity of the optical lens.

[0139] In an exemplary embodiment, the back focal length BFL of the optical lens and the total optical length TTL of the optical lens may satisfy: 0.35≤BFL / TTL≤0.40. Further, 0.36≤BFL / TTL≤0.40. Further, 0.3648≤BFL / TTL≤0.3981. Reasonable configuration of the ratio of the back focal length of the optical lens to the total optical length of the optical lens is conducive to the smooth transition of light to the chip, and the miniaturization of the optical lens is ensured while achieving a long back focal length.

[0140] In an exemplary embodiment, the back focal length BFL of the optical lens and the distance TL on the optical axis from the first side surface of the first lens to the second side surface of the fifth lens may satisfy: 0.5≤BFL / TL≤0.7. Further, 0.57≤BFL / TL≤0.67. Still further, 0.5743≤BFL / TL≤0.6614. Reasonably configuring the ratio of the back focal length of the optical lens to the distance on the optical axis from the first side surface of the first lens to the second side surface of the fifth lens allows the light to smoothly transition to the rear system, which can increase the back focal length of the optical lens, reserve sufficient space for the installation and focusing of other optical elements, and avoid interference with adjacent optical elements.

[0141] In an exemplary embodiment, the effective focal length F5 of the fifth lens and the total effective focal length F of the optical lens may satisfy: 1≤F5 / F≤5. Preferably, 1≤F5 / F≤4. Further, 1.3≤F5 / F≤3.2. Still further, 1.3943≤F5 / F≤3.1509. Reasonable configuration of the ratio of the effective focal length of the fifth lens to the total effective focal length of the optical lens can enable the fifth lens to receive the front large-angle light and achieve a smooth transition of the front large-angle light, while increasing the back focal length of the optical lens and constraining the total optical length of the optical lens within a certain range, thereby achieving miniaturization of the optical lens.

[0142] In an exemplary embodiment, the air interval d9 between the fourth lens and the fifth lens on the optical axis, the radius of curvature R9 of the first side surface of the fifth lens, and the effective focal length F5 of the fifth lens may satisfy: 0.05mm≤d9×R9 / F5≤1mm. Further, 0.07mm≤d9×R9 / F5≤0.66mm. Further, 0.0725mm≤d9×R9 / F5≤0.6560mm. Reasonable configuration of the relationship between the air interval between the fourth lens and the fifth lens on the optical axis, the radius of curvature of the first side surface of the fifth lens, and the effective focal length of the fifth lens can make the air interval between the fourth lens and the fifth lens smaller, reduce the total optical length of the optical lens, and achieve miniaturization of the optical lens; at the same time, the first side surface of the fifth lens can also have a smaller radius of curvature, and control the focal length of the fifth lens, which is conducive to the fifth lens receiving the front light, achieving a smooth transition of the light, increasing the back focal length of the optical lens, and at the same time improving the telecentricity to achieve a small main light angle of the light.

[0143] In an exemplary embodiment, the maximum clear aperture D9 of the first side of the fifth lens corresponding to the maximum field angle of the optical lens, the back focal length BFL of the optical lens, and the image height H corresponding to the maximum field angle of the optical lens may satisfy: 85mm≤D9×BFL / H≤110mm. Further, 92mm≤D9×BFL / H≤105mm. Still further, 92.2381mm≤D9×BFL / H≤103.8425mm. Reasonable configuration of the relationship between the maximum clear aperture of the first side of the fifth lens corresponding to the maximum field angle of the optical lens, the back focal length of the optical lens, and the image height corresponding to the maximum field angle of the optical lens can make the first side of the fifth lens have a larger aperture, which is beneficial to the smooth transition of large-angle light in the edge area, and achieves a small main light angle while increasing the back focal length.

[0144] In an exemplary embodiment, the maximum light clearance diameter D8 of the second side surface of the fourth lens corresponding to the maximum field angle of the optical lens and the maximum light clearance diameter D9 of the first side surface of the fifth lens corresponding to the maximum field angle of the optical lens may satisfy: 0.95≤D8 / D9≤1.2. Further, 0.99≤D8 / D9≤1.15. Still further, 0.9927≤D8 / D9≤1.11. By configuring the maximum light clearance diameter of the second side surface of the fourth lens corresponding to the maximum field angle of the optical lens to be close to the maximum light clearance diameter of the first side surface of the fifth lens corresponding to the maximum field angle of the optical lens, it is beneficial to achieve effective connection of light between the fourth lens and the fifth lens, increase the back focal length, and at the same time improve the telecentricity to achieve a small principal light angle.

[0145] In an exemplary embodiment, the maximum field of view FOV of the optical lens, the total effective focal length F of the optical lens, and the image height H corresponding to the maximum field of view of the optical lens may satisfy: 56.5°≤(FOV×F) / H≤61°. Further, 57.57°≤(FOV×F) / H≤60.37°. Still further, 57.5773°≤(FOV×F) / H≤60.3655°. Reasonable configuration of the relationship between the maximum field of view of the optical lens, the total effective focal length of the optical lens, and the image height corresponding to the maximum field of view of the optical lens is conducive to achieving a large field of view and high resolution of the optical lens.

[0146] In an exemplary embodiment, the total optical length TTL of the optical lens, the image height H corresponding to the maximum field angle of the optical lens, and the arc value θ of the maximum field angle of the optical lens may satisfy: 16≤TTL / H / θ≤18.5. Further, 16.35≤TTL / H / θ≤17.98. Still further, 16.3533≤TTL / H / θ≤17.9763. By controlling the above conditional formula, when the image height corresponding to the maximum field angle of the optical lens and the arc value of the maximum field angle of the optical lens are constant, the total optical length of the optical lens can be reduced, which is conducive to miniaturization of the optical lens.

[0147] In an exemplary embodiment, the image height H corresponding to the maximum field of view angle of the optical lens, the total effective focal length F of the optical lens and the radian value θ of the maximum field of view angle of the optical lens may satisfy: 0.002≤|(HF×θ) / (F×θ)|≤0.07. Further, 0.005≤|(HF×θ) / (F×θ)|≤0.051. Still further, 0.0050≤|(HF×θ) / (F×θ)|≤0.0509. By rationally configuring the relationship between the image height corresponding to the maximum field of view angle of the optical lens, the total effective focal length of the optical lens and the radian value of the maximum field of view angle of the optical lens, when the image height corresponding to the maximum field of view angle of the optical lens is constant, the total effective focal length of the optical lens can be increased, which is beneficial to improving the imaging effect of the central area of ​​the imaging surface of the optical lens.

[0148] In an exemplary embodiment, the image height H corresponding to the maximum field angle of the optical lens and the total effective focal length F of the optical lens may satisfy: 2.4≤F / H≤3. Further, 2.54≤F / H≤2.88. Still further, 2.5745≤F / H≤2.8759. Reasonable configuration of the ratio of the image height corresponding to the maximum field angle of the optical lens to the total effective focal length of the optical lens can make the image height corresponding to the maximum field angle of the optical lens smaller than the total effective focal length of the optical lens, which is beneficial to reducing the aberration of the edge light after passing through the optical lens and improving the resolution of the optical lens.

[0149] In an exemplary embodiment, the vector height SAG1 at the maximum clear aperture of the first side surface of the first lens corresponding to the maximum field angle of the optical lens and the maximum clear aperture D1 of the first side surface of the first lens corresponding to the maximum field angle of the optical lens may satisfy: 0.15≤arctan(SAG1 / D1)≤0.3. Further, 0.17≤arctan(SAG1 / D1)≤0.265. Still further, 0.1744≤arctan(SAG1 / D1)≤0.2608. By controlling the above conditional expressions, the opening angle of the first side surface of the first lens can be effectively constrained, so that the pupil image of the ghost image is away from the focal plane, the energy value of the ghost image is effectively reduced, and the imaging quality of the optical lens is improved.

[0150] In an exemplary embodiment, the radius of curvature R3 of the first side surface of the second lens and the effective focal length F of the second lens may satisfy: 0.5≤R3 / F2≤1.2. Further, 0.68≤R3 / F2≤1.04. Further, 0.6873≤R3 / F2≤1.0396. Reasonable configuration of the ratio of the radius of curvature of the first side surface of the second lens to the effective focal length of the second lens is conducive to the second lens collecting the light passing through the first lens, thereby realizing a large field of view of the optical lens.

[0151] In an exemplary embodiment, the vector height SAG1 at the maximum clear aperture of the first side surface of the first lens corresponding to the maximum field of view of the optical lens and the vector height SAG2 at the maximum clear aperture of the second side surface of the first lens corresponding to the maximum field of view of the optical lens may satisfy: 0.8≤|SAG1 / SAG2|≤1.8. Further, 0.92≤|SAG1 / SAG2|≤1.43. Still further, 0.9247≤|SAG1 / SAG2|≤1.4292. By configuring the vector heights at the maximum clear aperture of the two sides of the first lens corresponding to the maximum field of view of the optical lens to be close, it is beneficial to control the two sides of the first lens to be concentric circles, uniform thickness, improve the machinability of the first lens, and improve the reliability and optical performance of the first lens.

[0152] In an exemplary embodiment, the radius of curvature R1 of the first side surface of the first lens and the effective focal length F1 of the first lens may satisfy: 0≤|R1 / F1|≤0.15. Further, 0≤|R1 / F1|≤0.091. Still further, 0≤|R1 / F1|≤0.0902. The smaller the ratio of the radius of curvature of the first side surface of the first lens to the effective focal length of the first lens, the stronger the first lens's ability to deflect large-angle light, and the easier it is for the first lens to collect large-angle light. Reasonable configuration of the ratio of the radius of curvature of the first side surface of the first lens to the effective focal length of the first lens can enable the first lens to have an appropriate deflection ability for large-angle light, which is beneficial for the first lens to collect as much large-angle light as possible.

[0153] In an exemplary embodiment, the effective focal length F2 of the second lens and the total effective focal length F of the optical lens may satisfy: -1.1≤F2 / F≤-0.5. Further, -1.03≤F2 / F≤-0.72. Still further, -1.0244≤F2 / F≤-0.7238. Reasonable configuration of the ratio of the effective focal length of the second lens to the total effective focal length of the optical lens can make the second lens a negative lens, which is beneficial for the second lens to receive the light emitted from the first lens and transition the light adjusted by the second lens to the third lens, so that the large-angle light is converted into a smaller-angle light and enters the rear lens, thereby improving the resolution of the optical lens.

[0154] In an exemplary embodiment, the effective focal length F3 of the third lens and the total effective focal length F of the optical lens may satisfy: 0.5≤F3 / F≤1.5. Further, 0.88≤F3 / F≤1.45. Still further, 0.8811≤F3 / F≤1.4391. The smaller the ratio of the effective focal length of the third lens to the total effective focal length of the optical lens, the smaller the focal length of the third lens, and the stronger the deflection ability of the third lens for large-angle light. Reasonable configuration of the ratio of the effective focal length of the third lens to the total effective focal length of the optical lens can make the third lens have appropriate deflection ability for large-angle light, which is conducive to the smooth entry of large-angle light into the rear lens.

[0155] In an exemplary embodiment, the optical lens may further include a filter for correcting color deviation and / or a protective glass for protecting a photosensitive element located on the image plane.

[0156] In an exemplary embodiment, the mirror surfaces of the first lens, the second lens, the third lens, the fourth lens, and the fifth lens may include one or more aspherical mirror surfaces, which have a better curvature radius characteristic and have the advantages of improving distortion aberration and improving aberration. The use of aspherical mirror surfaces can eliminate aberrations that occur during imaging as much as possible, thereby improving imaging quality.

[0157] The optical lens according to the above-mentioned embodiment of the present application may adopt multiple lenses, such as the five lenses mentioned above. By reasonably allocating the optical parameters of each lens, the optical lens has high light throughput, long back focus, low sensitivity, high light efficiency utilization, small main light angle, miniaturization, large field of view, small distortion, high resolution, large angle resolution, easy processing, and can be well matched with, for example, vehicle-mounted chips without dark corners. The optical lens has good temperature performance, the imaging effect changes little under high and low temperatures, and the image quality is stable. Therefore, the optical lens according to the above-mentioned embodiment of the present application can better meet the requirements of, for example, vehicle-mounted applications.

[0158] Those skilled in the art should understand that the total optical length TTL of the optical lens used above refers to the on-axis distance from the first side surface of the first lens to the imaging plane or the image source plane; the back focal length BFL of the optical lens refers to the on-axis distance from the second side surface of the fifth lens to the imaging plane or the image source plane; and the maximum field of view FOV of the optical lens is associated with the image height H, which refers to the field of view corresponding to the image height H.

[0159] However, it should be understood by those skilled in the art that, without departing from the technical solution claimed in the present application, the number of lenses constituting the optical lens can be changed to obtain the various results and advantages described in this specification. For example, although five lenses are described as an example in the embodiment, the optical lens is not limited to including five lenses. If necessary, the optical lens may also include other numbers of lenses.

[0160] Specific embodiments of the optical lens applicable to the above-mentioned embodiments are further described below with reference to the accompanying drawings. Example 1

[0161] The following reference Figure 1 The optical lens according to Example 1 of the present application is described.

[0162] like Figure 1 As shown, the optical lens includes, from the first side to the second side along the optical axis, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4 and a fifth lens L5. The stop STO can be disposed between the third lens L3 and the fourth lens L4. The second lens L2 and the third lens L3 are cemented to form a cemented lens.

[0163] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0164] The second lens L2 has negative refractive power, and its first side surface S3 is a concave surface, and its second side surface S4 is a convex surface.

[0165] The third lens L3 has positive refractive power, a first side surface S5 of which is a concave surface, and a second side surface S6 of which is a convex surface.

[0166] The fourth lens L4 has positive refractive power, and its first side surface S7 is a convex surface, and its second side surface S8 is a convex surface.

[0167] The fifth lens L5 has positive refractive power, and its first side surface S9 is convex, and its second side surface S10 is concave.

[0168] An image plane IMA is disposed on the second side of the optical lens, and a filter L6 is disposed between the fifth lens L5 and the image plane IMA, and the filter has a first side surface S11 and a second side surface S12. When IMA is an imaging surface, light from an object sequentially passes through each surface S1 to S12 and is finally imaged on IMA. When IMA is an image source surface, light from IMA sequentially passes through each surface S12 to S1 and is finally projected on the object.

[0169] Table 1 shows the basic parameters of the optical lens of Example 1, wherein the units of the radius of curvature and thickness / distance are all millimeters (mm).

[0170] Table 1

[0171]

[0172] In Embodiment 1, both the first side surface S1 and the second side surface S2 of the first lens L1 are aspherical surfaces, and the surface shape of each aspherical surface can be defined by but not limited to the following aspherical surface formula:

[0173] (1)

[0174] Wherein, the distance vector height from the vertex of the aspherical surface when the aspherical surface is at a height of h along the optical axis; c is the paraxial curvature of the aspherical surface, c=1 / R (i.e., the paraxial curvature c is the reciprocal of the curvature radius R in Table 1 above); k is the cone coefficient; Ai is the correction coefficient of the i-th order of the aspherical surface. Table 2 shows the cone coefficient k and the high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1 and S2 in Example 1.

[0175] Table 2

[0176]

[0177] Figure 2 FIG. 1 shows the principal angle curve of the optical lens of Example 1, which indicates the incident angle of the principal ray corresponding to different image heights. Figure 2 It can be seen that the optical lens of this embodiment has a small principal light angle. Example 2

[0178] The following reference Figure 3 The optical lens according to Embodiment 2 of the present application is described. Figure 3 As shown, the main difference between this embodiment and Embodiment 1 is that the optical parameters such as the curvature radius of each lens surface and the lens thickness are different.

[0179] Table 3 shows the basic parameters of the optical lens of Example 2, wherein the units of the radius of curvature and thickness / distance are all millimeters (mm).

[0180] Table 3

[0181]

[0182] In Example 2, the first side surface S1 and the second side surface S2 of the first lens L1 are both aspherical surfaces. Table 4 shows the cone coefficient k and the high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1 and S2 in Example 2.

[0183] Table 4

[0184]

[0185] Figure 4 FIG. 2 shows the principal angle curve of the optical lens of Example 2, which indicates the incident angle of the principal ray corresponding to different image heights. Figure 4 It can be seen that the optical lens of this embodiment has a small principal light angle. Example 3

[0186] The following reference Figure 5 The optical lens according to Embodiment 3 of the present application is described. Figure 5 As shown, the main differences between this embodiment and Embodiment 1 are that: the optical parameters such as the curvature radius of each lens surface and the lens thickness are different; and the first lens L1 has positive refractive power.

[0187] Table 5 shows the basic parameter table of the optical lens of Example 3, wherein the units of the radius of curvature and thickness / distance are all millimeters (mm).

[0188] Table 5

[0189]

[0190] In Example 3, the first side surface S1 and the second side surface S2 of the first lens L1 are both aspherical surfaces. Table 6 shows the cone coefficient k and the high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1 and S2 in Example 3.

[0191] Table 6

[0192]

[0193] Figure 6 FIG. 3 shows the principal angle curve of the optical lens of Example 3, which indicates the incident angle of the principal ray corresponding to different image heights. Figure 6 It can be seen that the optical lens of this embodiment has a small principal light angle. Example 4

[0194] The following reference Figure 7 The optical lens according to Embodiment 4 of the present application is described. Figure 7 As shown, the main differences between this embodiment and Embodiment 1 are that: the optical parameters such as the curvature radius of each lens surface and the lens thickness are different; and the first lens L1 has positive refractive power.

[0195] Table 7 shows the basic parameter table of the optical lens of Example 4, wherein the units of the radius of curvature and thickness / distance are all millimeters (mm).

[0196] Table 7

[0197]

[0198] In Example 4, the first side surface S1 and the second side surface S2 of the first lens L1 are both aspherical surfaces. Table 8 shows the cone coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1 and S2 in Example 4.

[0199] Table 8

[0200]

[0201] Figure 8 FIG. 4 shows the principal angle curve of the optical lens of Example 4, which indicates the incident angle of the principal ray corresponding to different image heights. Figure 8 It can be seen that the optical lens of this embodiment has a small principal light angle. Example 5

[0202] The following reference Fig. 9 The optical lens according to Embodiment 5 of the present application is described. Fig. 9 As shown, compared with Example 1, the main differences of this embodiment are: the optical parameters such as the curvature radius of each lens surface and the lens thickness are different; the first lens L1 has positive optical power; the second side surface S4 of the second lens L2 is a concave surface; the first side surface S5 of the third lens L3 is a convex surface; the second side surface S10 of the fifth lens L5 is a convex surface; and the second lens and the third lens have an air gap on the optical axis.

[0203] Table 9 shows the basic parameter table of the optical lens of Example 5, wherein the units of the radius of curvature and thickness / distance are all millimeters (mm).

[0204] Table 9

[0205]

[0206] In Example 5, the first side surface S1 and the second side surface S2 of the first lens L1 are both aspherical surfaces. Table 10 shows the cone coefficient k and the high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1 and S2 in Example 5.

[0207] Table 10

[0208]

[0209] Fig.10 FIG. 5 shows the principal angle curve of the optical lens of Example 5, which indicates the incident angle of the principal ray corresponding to different image heights. Fig.10 It can be seen that the optical lens of this embodiment has a small principal light angle. Example 6

[0210] The following reference Fig.11 The optical lens according to Example 6 of the present application is described. Fig.11As shown, the main differences between this embodiment and embodiment 1 are: the optical parameters such as the curvature radius of each lens surface and the lens thickness are different; the first lens L1 has positive focal power; the second side surface S4 of the second lens L2 is a concave surface; the first side surface S5 of the third lens L3 is a convex surface; the second side surface S10 of the fifth lens L5 is a convex surface. The second lens and the third lens have an air gap on the optical axis.

[0211] Table 11 shows the basic parameter table of the optical lens of Example 6, wherein the units of the radius of curvature and thickness / distance are all millimeters (mm).

[0212] Table 11

[0213]

[0214] In Example 6, the first side surface S1 and the second side surface S2 of the first lens L1 are both aspherical surfaces. Table 12 shows the cone coefficient k and the high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1 and S2 in Example 6.

[0215] Table 12

[0216]

[0217] Fig.12 The main light angle curve of the optical lens of Example 6 is shown, which represents the incident angle of the main light corresponding to different image heights. Fig.12 It can be seen that the optical lens of this embodiment has a small principal light angle. Example 7

[0218] The following reference Fig.13 The optical lens according to Example 7 of the present application is described. Fig.13 As shown, compared with Example 1, the main differences of this embodiment are: the optical parameters such as the curvature radius of each lens surface and the lens thickness are different; the first lens L1 has positive optical power; the second side surface S4 of the second lens L2 is a concave surface; the first side surface S5 of the third lens L3 is a convex surface; and the second side surface S10 of the fifth lens L5 is a plane.

[0219] Table 13 shows the basic parameter table of the optical lens of Example 7, wherein the units of the radius of curvature and thickness / distance are all millimeters (mm).

[0220] Table 13

[0221]

[0222] In Example 7, the first side surface S1 and the second side surface S2 of the first lens L1 and the first side surface S9 of the fifth lens L5 are all aspherical surfaces. Table 14 shows the cone coefficient k and the high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1, S2 and S9 in Example 7.

[0223] Table 14

[0224]

[0225] Fig.14 FIG. 1 shows the principal angle curve of the optical lens of Example 7, which indicates the incident angle of the principal ray corresponding to different image heights. Fig.14 It can be seen that the optical lens of this embodiment has a small principal light angle. Example 8

[0226] The following reference Fig.15 The optical lens according to Example 8 of the present application is described. Fig.15 As shown, compared with Example 1, the main differences of this embodiment are: the optical parameters such as the curvature radius of each lens surface and the lens thickness are different; the first lens L1 has positive optical power; the second side surface S4 of the second lens L2 is a concave surface; the first side surface S5 of the third lens L3 is a convex surface; and the second side surface S10 of the fifth lens L5 is a plane.

[0227] Table 15 shows the basic parameter table of the optical lens of Example 8, wherein the units of the radius of curvature and thickness / distance are all millimeters (mm).

[0228] Table 15

[0229]

[0230] In Example 8, the first side surface S1 and the second side surface S2 of the first lens L1 and the first side surface S9 of the fifth lens L5 are all aspherical surfaces. Table 16 shows the cone coefficient k and the high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1, S2 and S9 in Example 8.

[0231] Table 16

[0232]

[0233] Fig.16 The main light angle curve of the optical lens of Example 8 is shown, which represents the incident angle of the main light corresponding to different image heights. Fig.16 It can be seen that the optical lens of this embodiment has a small principal light angle. Example 9

[0234] The following reference Fig.17 The optical lens according to Example 9 of the present application is described. Fig.17 As shown, compared with Example 1, the main differences of this embodiment are: the optical parameters such as the curvature radius of each lens surface and the lens thickness are different; the first lens L1 has positive focal power; the second side surface S4 of the second lens L2 is a concave surface; the first side surface S5 of the third lens L3 is a convex surface; and the second lens and the third lens have an air gap on the optical axis.

[0235] Table 17 shows the basic parameter table of the optical lens of Example 9, wherein the units of the radius of curvature and thickness / distance are all millimeters (mm).

[0236] Table 17

[0237]

[0238] In Example 9, the first side surface S1 and the second side surface S2 of the first lens L1 are both aspherical surfaces. Table 18 shows the cone coefficient k and the high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1 and S2 in Example 9.

[0239] Table 18

[0240]

[0241] Fig.18 The main light angle curve of the optical lens of Example 9 is shown, which represents the incident angle of the main light corresponding to different image heights. Fig.18 It can be seen that the optical lens of this embodiment has a small principal light angle. Example 10

[0242] The following reference Fig.19 The optical lens according to embodiment 10 of the present application is described. Fig.19 As shown, compared with Example 1, the main differences of this embodiment are: the optical parameters such as the curvature radius of each lens surface and the lens thickness are different; the first lens L1 has positive focal power; the second side surface S4 of the second lens L2 is a concave surface; the first side surface S5 of the third lens L3 is a convex surface; and the second lens and the third lens have an air gap on the optical axis.

[0243] Table 19 shows the basic parameter table of the optical lens of Example 10, wherein the units of the radius of curvature and thickness / distance are all millimeters (mm).

[0244] Table 19

[0245]

[0246] In Example 10, the first side surface S1 and the second side surface S2 of the first lens L1 are both aspherical surfaces. Table 20 shows the cone coefficient k and the high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1 and S2 in Example 10.

[0247] Table 20

[0248]

[0249] Fig. 20 FIG. 10 shows the principal angle curve of the optical lens of Example 10, which represents the incident angle of the principal ray corresponding to different image heights. Fig. 20 It can be seen that the optical lens of this embodiment has a small principal light angle. Embodiment 11

[0250] The following reference Fig.21 The optical lens according to Example 11 of the present application is described. Fig.21 As shown, compared with Example 1, the main differences of this embodiment are: the optical parameters such as the curvature radius of each lens surface and the lens thickness are different; the first lens L1 has positive optical power; the first side surface S5 of the third lens L3 is a convex surface; and the second lens and the third lens have an air gap on the optical axis.

[0251] Table 21 shows the basic parameter table of the optical lens of Example 11, wherein the units of the radius of curvature and thickness / distance are all millimeters (mm).

[0252] Table 21

[0253]

[0254] In Example 11, the first side surface S1 and the second side surface S2 of the first lens L1 are both aspherical surfaces. Table 22 shows the cone coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1 and S2 in Example 11.

[0255] Table 22

[0256]

[0257] Fig. 22 The main light angle curve of the optical lens of Example 11 is shown, which represents the incident angle of the main light corresponding to different image heights. Fig. 22 It can be seen that the optical lens of this embodiment has a small principal light angle. Example 12

[0258] The following reference Fig.23 The optical lens according to Example 12 of the present application is described. Fig.23 As shown, compared with Example 1, the main differences of this embodiment are: the optical parameters such as the curvature radius of each lens surface and the lens thickness are different; the first lens L1 has positive optical power; the first side surface S5 of the third lens L3 is a convex surface; and the second lens and the third lens have an air gap on the optical axis.

[0259] Table 23 shows the basic parameter table of the optical lens of Example 12, wherein the units of the radius of curvature and thickness / distance are all millimeters (mm).

[0260] Table 23

[0261]

[0262] In Example 12, the first side surface S1 and the second side surface S2 of the first lens L1 are both aspherical surfaces. Table 24 shows the cone coefficient k and the high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1 and S2 in Example 12.

[0263] Table 24

[0264]

[0265] Fig.24 The main light angle curve of the optical lens of Example 12 is shown, which represents the incident angle of the main light corresponding to different image heights. Fig.24 It can be seen that the optical lens of this embodiment has a small principal light angle. Embodiment 13

[0266] The following reference Fig.25 The optical lens according to Example 13 of the present application is described. Fig.25 As shown, the main differences between this embodiment and Embodiment 1 are: the optical parameters such as the curvature radius of each lens surface and the lens thickness are different; the first lens L1 has positive optical power; and the second lens and the third lens have an air gap on the optical axis.

[0267] Table 25 shows the basic parameter table of the optical lens of Example 13, wherein the units of the radius of curvature and thickness / distance are all millimeters (mm).

[0268] Table 25

[0269]

[0270] In Example 13, the first side surface S1 and the second side surface S2 of the first lens L1 are both aspherical surfaces. Table 26 shows the cone coefficient k and the high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1 and S2 in Example 13.

[0271] Table 26

[0272]

[0273] Fig.26 FIG. 1 shows the principal angle curve of the optical lens of Example 13, which represents the incident angle of the principal ray corresponding to different image heights. Fig.26 It can be seen that the optical lens of this embodiment has a small principal light angle. Embodiment 14

[0274] The following reference Fig. 27 The optical lens according to embodiment 14 of the present application is described. Fig. 27 As shown, the main differences between this embodiment and Embodiment 1 are: the optical parameters such as the curvature radius of each lens surface and the lens thickness are different; the first lens L1 has positive optical power; and the second lens and the third lens have an air gap on the optical axis.

[0275] Table 27 shows the basic parameter table of the optical lens of Example 14, wherein the units of the radius of curvature and thickness / distance are all millimeters (mm).

[0276] Table 27

[0277]

[0278] In Example 14, the first side surface S1 and the second side surface S2 of the first lens L1 are both aspherical surfaces. Table 28 shows the cone coefficient k and the high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1 and S2 in Example 14.

[0279] Table 28

[0280]

[0281] Fig.28 FIG. 14 shows the principal angle curve of the optical lens of Example 14, which represents the incident angle of the principal ray corresponding to different image heights. Fig.28 It can be seen that the optical lens of this embodiment has a small principal light angle. Embodiment 15

[0282] The following reference Fig.29 The optical lens according to embodiment 15 of the present application is described. Fig.29 As shown, compared with Example 1, the main differences of this embodiment are: the optical parameters such as the curvature radius of each lens surface and the lens thickness are different; the first lens L1 has positive optical power; the second side surface S10 of the fifth lens L5 is a convex surface; and the second lens and the third lens have an air gap on the optical axis.

[0283] Table 29 shows the basic parameter table of the optical lens of Example 15, wherein the units of the radius of curvature and thickness / distance are all millimeters (mm).

[0284] Table 29

[0285]

[0286] In Example 15, the first side surface S1 and the second side surface S2 of the first lens L1 are both aspherical surfaces. Table 30 shows the cone coefficient k and the high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1 and S2 in Example 15.

[0287] Table 30

[0288]

[0289] Fig.30 FIG. 15 shows the principal angle curve of the optical lens of Example 15, which indicates the incident angle of the principal ray corresponding to different image heights. Fig.30 It can be seen that the optical lens of this embodiment has a small principal light angle. Example 16

[0290] The following reference Fig.31 The optical lens according to Example 16 of the present application is described. Fig.31 As shown, compared with Example 1, the main differences of this embodiment are: the optical parameters such as the curvature radius of each lens surface and the lens thickness are different; the first lens L1 has positive optical power; the second side surface S10 of the fifth lens L5 is a convex surface; and the second lens and the third lens have an air gap on the optical axis.

[0291] Table 31 shows the basic parameter table of the optical lens of Example 16, wherein the units of the radius of curvature and thickness / distance are all millimeters (mm).

[0292] Table 31

[0293]

[0294] In Example 16, the first side surface S1 and the second side surface S2 of the first lens L1 are both aspherical surfaces. Table 32 shows the cone coefficient k and the high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1 and S2 in Example 16.

[0295] Table 32

[0296]

[0297] Fig.32 The principal light angle curve of the optical lens of Example 16 is shown, which represents the incident angle of the principal light corresponding to different image heights. Fig.32 It can be seen that the optical lens of this embodiment has a small principal light angle. Embodiment 17

[0298] The following reference Fig.33 The optical lens according to Example 17 of the present application is described. Fig.33 As shown, the main differences between this embodiment and Embodiment 1 are: the optical parameters such as the curvature radius of each lens surface and the lens thickness are different; the first lens L1 has positive optical power; the second side surface S4 of the second lens L2 is a concave surface; and the second lens and the third lens have an air gap on the optical axis.

[0299] Table 33 shows the basic parameter table of the optical lens of Example 17, wherein the units of the radius of curvature and thickness / distance are all millimeters (mm).

[0300] Table 33

[0301]

[0302] In Example 17, the first side surface S1 and the second side surface S2 of the first lens L1 are both aspherical surfaces. Table 34 shows the cone coefficient k and the high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1 and S2 in Example 17.

[0303] Table 34

[0304]

[0305] Fig.34 The principal light angle curve of the optical lens of Example 17 is shown, which represents the incident angle of the principal light corresponding to different image heights. Fig.34 It can be seen that the optical lens of this embodiment has a small principal light angle. Embodiment 18

[0306] The following reference Fig.35 The optical lens according to Example 18 of the present application is described. Fig.35 As shown, the main differences between this embodiment and Embodiment 1 are: the optical parameters such as the curvature radius of each lens surface and the lens thickness are different; the first lens L1 has positive optical power; the second side surface S4 of the second lens L2 is a concave surface; and the second lens and the third lens have an air gap on the optical axis.

[0307] Table 35 shows the basic parameter table of the optical lens of Example 18, wherein the units of curvature radius and thickness / distance are all millimeters (mm).

[0308] Table 35

[0309]

[0310] In Example 18, the first side surface S1 and the second side surface S2 of the first lens L1 are both aspherical surfaces. Table 36 shows the cone coefficient k and the high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1 and S2 in Example 18.

[0311] Table 36

[0312]

[0313] Fig.36 The main light angle curve of the optical lens of Example 18 is shown, which represents the incident angle of the main light corresponding to different image heights. Fig.36 It can be seen that the optical lens of this embodiment has a small principal light angle. Embodiment 19

[0314] The following reference Fig.37 The optical lens according to Example 19 of the present application is described. Fig.37 As shown, compared with Example 1, the main differences of this embodiment are: the optical parameters such as the curvature radius of each lens surface and the lens thickness are different; the first lens L1 has positive optical power; the second side surface S4 of the second lens L2 is a concave surface; the first side surface S5 of the third lens L3 is a convex surface; the second side surface S10 of the fifth lens L5 is a convex surface; and the second lens and the third lens have an air gap on the optical axis.

[0315] Table 37 shows the basic parameter table of the optical lens of Example 19, wherein the units of the radius of curvature and thickness / distance are all millimeters (mm).

[0316] Table 37

[0317]

[0318] In Example 19, the first side surface S1 and the second side surface S2 of the first lens L1 are both aspherical surfaces. Table 38 shows the cone coefficient k and the high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1 and S2 in Example 19.

[0319] Table 38

[0320]

[0321] Fig.38 The principal light angle curve of the optical lens of Example 19 is shown, which represents the incident angle of the principal light corresponding to different image heights. Fig.38 It can be seen that the optical lens of this embodiment has a small principal light angle. Embodiment 20

[0322] The following reference Fig.39 The optical lens according to embodiment 20 of the present application is described. Fig.39 As shown, compared with Example 1, the main differences of this embodiment are: the optical parameters such as the curvature radius of each lens surface and the lens thickness are different; the first lens L1 has positive optical power; the second side surface S4 of the second lens L2 is a concave surface; the first side surface S5 of the third lens L3 is a convex surface; the second side surface S10 of the fifth lens L5 is a convex surface; and the second lens and the third lens have an air gap on the optical axis.

[0323] Table 39 shows the basic parameter table of the optical lens of Example 20, wherein the units of the radius of curvature and thickness / distance are all millimeters (mm).

[0324] Table 39

[0325]

[0326] In Example 20, the first side surface S1 and the second side surface S2 of the first lens L1 are both aspherical surfaces. Table 40 shows the cone coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1 and S2 in Example 20.

[0327] Table 40

[0328]

[0329] Fig.40 The main light angle curve of the optical lens of Example 20 is shown, which represents the incident angle of the main light corresponding to different image heights. Fig.40 It can be seen that the optical lens of this embodiment has a small principal light angle. Embodiment 21

[0330] The following reference Fig.41 The optical lens according to Example 21 of the present application is described. Fig.41 As shown, the main differences between this embodiment and Embodiment 1 are: the optical parameters such as the curvature radius of each lens surface and the lens thickness are different; the first lens L1 has positive optical power; and the second side surface S10 of the fifth lens L5 is a convex surface.

[0331] Table 41 shows the basic parameter table of the optical lens of Example 21, wherein the units of curvature radius and thickness / distance are all millimeters (mm).

[0332] Table 41

[0333]

[0334] In Example 21, the first side surface S1 and the second side surface S2 of the first lens L1 are both aspherical surfaces. Table 42 shows the cone coefficient k and the high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1 and S2 in Example 21.

[0335] Table 42

[0336]

[0337] Fig.42 FIG. 21 shows the principal angle curve of the optical lens of Example 21, which indicates the incident angle of the principal ray corresponding to different image heights. Fig.42 It can be seen that the optical lens of this embodiment has a small principal light angle. Embodiment 22

[0338] The following reference Fig.43 The optical lens according to embodiment 22 of the present application is described. Fig.43 As shown, the main differences between this embodiment and Embodiment 1 are: the optical parameters such as the curvature radius of each lens surface and the lens thickness are different; the first lens L1 has positive optical power; and the second side surface S10 of the fifth lens L5 is a convex surface.

[0339] Table 43 shows the basic parameter table of the optical lens of Example 22, wherein the units of curvature radius and thickness / distance are all millimeters (mm).

[0340] Table 43

[0341]

[0342] In Example 22, the first side surface S1 and the second side surface S2 of the first lens L1 are both aspherical surfaces. Table 44 shows the cone coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1 and S2 in Example 22.

[0343] Table 44

[0344]

[0345] Fig.44 FIG. 2 shows the principal angle curve of the optical lens of Example 22, which represents the incident angle of the principal ray corresponding to different image heights. Fig.44 It can be seen that the optical lens of this embodiment has a small principal light angle. Embodiment 23

[0346] The following reference Fig.45 The optical lens according to embodiment 23 of the present application is described. Fig.45 As shown, compared with Example 1, the main differences of this embodiment are: the optical parameters such as the curvature radius of each lens surface and the lens thickness are different; the first lens L1 has positive focal power; the second side surface S4 of the second lens L2 is a concave surface; the first side surface S5 of the third lens L3 is a convex surface; the second side surface S6 of the fourth lens L4 is a concave surface; the second side surface S10 of the fifth lens L5 is a convex surface; and the second lens and the third lens have an air gap on the optical axis.

[0347] Table 45 shows the basic parameter table of the optical lens of Example 23, wherein the units of curvature radius and thickness / distance are all millimeters (mm).

[0348] Table 45

[0349]

[0350] In Example 23, the first side surface S1 and the second side surface S2 of the first lens L1 are both aspherical surfaces. Table 46 shows the cone coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1 and S2 in Example 23.

[0351] Table 46

[0352]

[0353] Fig.46 FIG. 2 shows the principal angle curve of the optical lens of Example 23, which represents the incident angle of the principal light corresponding to different image heights. Fig.46 It can be seen that the optical lens of this embodiment has a small principal light angle. Embodiment 24

[0354] The following reference Fig.47 The optical lens according to embodiment 24 of the present application is described. Fig.47 As shown, compared with Example 1, the main differences of this embodiment are: the optical parameters such as the curvature radius of each lens surface and the lens thickness are different; the first lens L1 has positive focal power; the second side surface S4 of the second lens L2 is a concave surface; the first side surface S5 of the third lens L3 is a convex surface; the second side surface S6 of the fourth lens L4 is a concave surface; the second side surface S10 of the fifth lens L5 is a convex surface; and the second lens and the third lens have an air gap on the optical axis.

[0355] Table 47 shows the basic parameter table of the optical lens of Example 24, wherein the units of curvature radius and thickness / distance are all millimeters (mm).

[0356] Table 47

[0357]

[0358] In Example 24, the first side surface S1 and the second side surface S2 of the first lens L1 are both aspherical surfaces. Table 48 shows the cone coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1 and S2 in Example 24.

[0359] Table 48

[0360]

[0361] Fig.48 FIG. 24 shows the principal angle curve of the optical lens of Example 24, which indicates the incident angle of the principal ray corresponding to different image heights. Fig.48 It can be seen that the optical lens of this embodiment has a small principal light angle. Embodiment 25

[0362] The following reference Fig.49 The optical lens according to embodiment 25 of the present application is described. Fig.49 As shown, compared with Example 1, the main differences of this embodiment are: the optical parameters such as the curvature radius of each lens surface and the lens thickness are different; the first lens L1 has positive focal power; the second side surface S4 of the second lens L2 is a concave surface; the first side surface S5 of the third lens L3 is a convex surface; the first side surface S5 of the fourth lens L4 is a concave surface; the second side surface S10 of the fifth lens L5 is a convex surface; and the second lens and the third lens have an air gap on the optical axis.

[0363] Table 49 shows the basic parameter table of the optical lens of Example 25, wherein the units of curvature radius and thickness / distance are all millimeters (mm).

[0364] Table 49

[0365]

[0366] In Example 25, the first side surface S1 and the second side surface S2 of the first lens L1 are both aspherical surfaces. Table 50 shows the cone coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1 and S2 in Example 25.

[0367] Table 50

[0368]

[0369] Fig.50 FIG. 25 shows the principal angle curve of the optical lens of Example 25, which indicates the incident angle of the principal ray corresponding to different image heights. Fig.50It can be seen that the optical lens of this embodiment has a small principal light angle. Embodiment 26

[0370] The following reference Fig.51 The optical lens according to Example 26 of the present application is described. Fig.51 As shown, compared with Example 1, the main differences of this embodiment are: the optical parameters such as the curvature radius of each lens surface and the lens thickness are different; the first lens L1 has positive focal power; the second side surface S4 of the second lens L2 is a concave surface; the first side surface S5 of the third lens L3 is a convex surface; the first side surface S5 of the fourth lens L4 is a concave surface; the second side surface S10 of the fifth lens L5 is a convex surface; and the second lens and the third lens have an air gap on the optical axis.

[0371] Table 51 shows the basic parameter table of the optical lens of Example 26, wherein the units of curvature radius and thickness / distance are all millimeters (mm).

[0372] Table 51

[0373]

[0374] In Example 26, the first side surface S1 and the second side surface S2 of the first lens L1 are both aspherical surfaces. Table 52 shows the cone coefficient k and the high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1 and S2 in Example 26.

[0375] Table 52

[0376]

[0377] Fig.52 The main light angle curve of the optical lens of Example 26 is shown, which represents the incident angle of the main light corresponding to different image heights. Fig.52 It can be seen that the optical lens of this embodiment has a small principal light angle. Embodiment 27

[0378] The following reference Fig.53 The optical lens according to Example 27 of the present application is described. Fig.53 As shown, compared with Example 1, the main differences of this embodiment are: the optical parameters such as the curvature radius of each lens surface and the lens thickness are different; the first lens L1 has positive focal power; the second side surface S4 of the second lens L2 is a concave surface; the first side surface S5 of the third lens L3 is a convex surface; the second side surface S6 of the fourth lens L4 is a concave surface; the second side surface S10 of the fifth lens L5 is a convex surface; and the second lens and the third lens have an air gap on the optical axis.

[0379] Table 53 shows the basic parameter table of the optical lens of Example 27, wherein the units of curvature radius and thickness / distance are all millimeters (mm).

[0380] Table 53

[0381]

[0382] In Example 27, the first side surface S1 of the first lens L1 is an aspherical surface. Table 54 shows the cone coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1 in Example 27.

[0383] Table 54

[0384]

[0385] Fig.54 FIG. 2 shows the principal angle curve of the optical lens of Example 27, which indicates the incident angle of the principal ray corresponding to different image heights. Fig.54 It can be seen that the optical lens of this embodiment has a small principal light angle. Embodiment 28

[0386] The following reference Fig.55 The optical lens according to Example 28 of the present application is described. Fig.55 As shown, compared with Example 1, the main differences of this embodiment are: the optical parameters such as the curvature radius of each lens surface and the lens thickness are different; the first lens L1 has positive focal power; the second side surface S4 of the second lens L2 is a concave surface; the first side surface S5 of the third lens L3 is a convex surface; the second side surface S6 of the fourth lens L4 is a concave surface; the second side surface S10 of the fifth lens L5 is a convex surface; and the second lens and the third lens have an air gap on the optical axis.

[0387] Table 55 shows the basic parameter table of the optical lens of Example 28, wherein the units of curvature radius and thickness / distance are all millimeters (mm).

[0388] Table 55

[0389]

[0390] In Example 28, the first side surface S1 of the first lens L1 is an aspherical surface. Table 56 shows the cone coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical surface S1 in Example 28.

[0391] Table 56

[0392]

[0393] Fig.56 FIG. 2 shows the principal angle curve of the optical lens of Example 28, which indicates the incident angle of the principal ray corresponding to different image heights. Fig.56 It can be seen that the optical lens of this embodiment has a small principal light angle.

[0394] Table 57-1, Table 57-2, Table 57-3, and Table 57-4 give the basic parameters of the optical lenses in Examples 1-28, such as F, φ, FNO, ENPD, TTL, FOV, θ, H, TL, BFL, DST, F1, F2, F3, F4, F5, D1, D2, D6, D7, D8, D9, SAG1, SAG2, and φ23.

[0395] Table 57-1

[0396]

[0397] Table 57-2

[0398]

[0399] Table 57-3

[0400]

[0401] Table 57-4

[0402]

[0403] In summary, the conditional expressions of each embodiment in Examples 1-28 satisfy the relationships shown in Table 58-1, Table 58-2, Table 58-3, and Table 58-4.

[0404] Table 58-1

[0405]

[0406] Table 58-2

[0407]

[0408] Table 58-3

[0409]

[0410] Table 58-4

[0411]

[0412] The present application also provides an electronic device, which includes the optical lens in the above exemplary embodiment and an imaging element for converting an optical image formed by the optical lens into an electrical signal, wherein the imaging element is arranged on an imaging surface or an image source surface, and may be, for example, a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS).

[0413] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. An optical lens, characterized in that: The method comprises, in order from the first side to the second side along the optical axis: A first lens having optical power, wherein the first side surface is convex and the second side surface is concave; a second lens having negative optical power, wherein the first side surface of the second lens is concave; a third lens element having positive power, wherein the second side surface of the third lens element is convex; a fourth lens having positive refractive power; and a fifth lens element having positive power, wherein the first side surface of the fifth lens element is convex; Wherein, the number of lenses having optical power in the optical lens is five; Wherein, the optical lens satisfies: |F1 / F|≥5, 1≤F5 / F≤5, -0.5≤F / R5≤0.5, 1≤R1 / d1≤6, and 0.5≤BFL / TL≤0.7, Among them, F1 is the effective focal length of the first lens, F5 is the effective focal length of the fifth lens, F is the total effective focal length of the optical lens, R5 is the curvature radius of the first side surface of the third lens, R1 is the curvature radius of the first side surface of the first lens, d1 is the center thickness of the first lens on the optical axis, BFL is the back focal length of the optical lens, and TL is the distance from the first side surface of the first lens to the second side surface of the fifth lens on the optical axis.

2. The optical lens according to claim 1, characterized in that: The first lens has positive or negative refractive power.

3. The optical lens according to claim 1, characterized in that: The second side surface of the second lens is a plane, a convex surface, or a concave surface.

4. The optical lens according to claim 1, characterized in that: The first side surface of the third lens is a plane or a convex surface or a concave surface.

5. The optical lens according to claim 1, characterized in that: The first side surface of the fourth lens is a convex surface or a concave surface, and the second side surface is a convex surface or a concave surface.

6. The optical lens according to claim 1, characterized in that: The second side surface of the fifth lens is a plane, a convex surface, or a concave surface.

7. The optical lens according to any one of claims 1 to 6, characterized in that: The total effective focal length F of the optical lens and the entrance pupil diameter ENPD of the optical lens satisfy: F / ENPD≤1.

2.

8. The optical lens according to any one of claims 1 to 6, characterized in that: A curvature radius R1 of the first side surface of the first lens and a center thickness d1 of the first lens on the optical axis satisfy: 1≤R1 / d1≤5.

9. The optical lens according to any one of claims 1 to 6, characterized in that: A curvature radius R9 of the first side surface of the fifth lens and an effective focal length F5 of the fifth lens satisfy: 0.05≤R9 / F5≤1.

2.

10. The optical lens according to any one of claims 1 to 6, characterized in that: The maximum light clearance aperture D1 of the first side surface of the first lens corresponding to the maximum field angle of the optical lens and the distance TL from the first side surface of the first lens to the second side surface of the fifth lens on the optical axis satisfy: 0.65≤D1 / TL≤0.

85.

11. The optical lens according to any one of claims 1 to 6, characterized in that: The back focal length BFL of the optical lens and the total optical length TTL of the optical lens satisfy: 0.35≤BFL / TTL≤0.

40.

12. The optical lens according to any one of claims 1 to 6, characterized in that: The maximum light clearance diameter D6 of the second side surface of the third lens corresponding to the maximum field angle of the optical lens and the maximum light clearance diameter D7 of the first side surface of the fourth lens corresponding to the maximum field angle of the optical lens satisfy: 0.9≤D6 / D7≤1.

05.

13. The optical lens according to any one of claims 1 to 6, characterized in that: The combined optical power of the second lens and the third lens 23 with the whole set of optical lens focal length Satisfy: 0.002≤| twenty three / |≤0.

2.

14. The optical lens according to claim 1, characterized in that: An air interval d2 between the first lens and the second lens on the optical axis and a distance TL from the first side surface of the first lens to the second side surface of the fifth lens on the optical axis satisfy: 0.2≤d2 / TL≤0.

45.

15. The optical lens according to claim 14, characterized in that: An air interval d2 between the first lens and the second lens on the optical axis and a distance TL from the first side surface of the first lens to the second side surface of the fifth lens on the optical axis satisfy: 0.25≤d2 / TL≤0.

41.

16. The optical lens according to any one of claims 1 to 6, characterized in that: The effective focal length F4 of the fourth lens and the total effective focal length F of the optical lens satisfy: 1≤F4 / F≤4.

17. The optical lens according to any one of claims 1 to 6, characterized in that: An effective focal length F4 of the fourth lens and a center thickness d8 of the fourth lens on the optical axis satisfy: 2≤F4 / d8≤40.

18. The optical lens according to any one of claims 1 to 6, characterized in that: The effective focal length F5 of the fifth lens and the total effective focal length F of the optical lens satisfy: 1≤F5 / F≤4.

19. The optical lens according to any one of claims 1 to 6, characterized in that: An air interval d9 between the fourth lens and the fifth lens on the optical axis, a radius of curvature R9 of a first side surface of the fifth lens, and an effective focal length F5 of the fifth lens satisfy: 0.05 mm ≤ d9 × R9 / F5 ≤ 1 mm.

20. The optical lens according to any one of claims 1 to 6, characterized in that: The maximum clear aperture D9 of the first side surface of the fifth lens corresponding to the maximum field angle of the optical lens, the back focal length BFL of the optical lens and the image height H corresponding to the maximum field angle of the optical lens satisfy: 85mm≤D9×BFL / H≤110mm.

21. The optical lens according to any one of claims 1 to 6, characterized in that: The maximum light clearance diameter D8 of the second side surface of the fourth lens corresponding to the maximum field angle of the optical lens and the maximum light clearance diameter D9 of the first side surface of the fifth lens corresponding to the maximum field angle of the optical lens satisfy: 0.95≤D8 / D9≤1.

2.

22. The optical lens according to any one of claims 1 to 6, characterized in that: The effective focal length F1 of the first lens and the total effective focal length F of the optical lens satisfy: 7≤F1 / F≤691.8335.

23. The optical lens according to any one of claims 1 to 6, characterized in that: The optical lens satisfies at least one of the following conditions: 0.8≤DST / F≤1.5; 0.55≤R1 / D1≤0.75; 0.8≤R1 / R2≤1.25; 0.1≤SAG2 / d2≤0.6; 0.5≤F4 / D7≤5; 0≤(D1-D2) / D2≤0.5; 56.5°≤(FOV×F) / H≤61°; 16≤TTL / H / θ≤18.5; 0.002≤|(HF×θ) / (F×θ)|≤ 0.07; 2.4≤F / H≤3; 0.15°≤arctan(SAG1 / D1)≤0.3°; 0.5≤R3 / F2≤1.2; 0.8≤|SAG1 / SAG2|≤1. 8; 0≤|R1 / F1|≤0.15; -1.1≤F2 / F≤-0.5; 0.5≤F3 / F≤1.5; 1.3≤F5 / F≤3.2; 2.19≤R1 / d1≤4.52; Wherein, DST is the effective aperture of the aperture in the optical lens, R1 is the radius of curvature of the first side of the first lens, D1 is the maximum aperture of the first side of the first lens corresponding to the maximum field angle of the optical lens, R2 is the radius of curvature of the second side of the first lens, TTL is the total optical length of the optical lens, SAG2 is the vector height at the maximum aperture of the second side of the first lens corresponding to the maximum field angle of the optical lens, d2 is the air interval between the first lens and the second lens on the optical axis, F4 is the effective focal length of the fourth lens, D7 is the maximum aperture of the first side of the fourth lens corresponding to the maximum field angle of the optical lens, and D2 is The maximum clear aperture of the second side of the first lens corresponding to the maximum field of view of the optical lens, F is the total effective focal length of the optical lens, FOV is the maximum field of view of the optical lens, H is the image height corresponding to the maximum field of view of the optical lens, θ is the radian value of the maximum field of view of the optical lens, SAG1 is the vector height at the maximum clear aperture of the first side of the first lens corresponding to the maximum field of view of the optical lens, R3 is the radius of curvature of the first side of the second lens, F1 is the effective focal length of the first lens, F2 is the effective focal length of the second lens, F3 is the effective focal length of the third lens, F5 is the effective focal length of the fifth lens, and d1 is the center thickness of the first lens on the optical axis.

24. The optical lens according to any one of claims 1 to 6, characterized in that: The optical lens satisfies at least one of the following conditions: F / ENPD≤1.02;0.35≤R9 / F5≤1.06;0.93≤DST / F≤1.29;0.69≤D1 / TL≤0.80;0.57≤R1 / D1≤0.71;0.93≤R1 / R2≤1.20;|F1 / F|≥7;-0.23≤F / R5≤0.3;0.96≤D6 / D7≤1;0.32≤SAG2 / d2≤0.58;1.26≤F4 / D7≤3.50;0.04≤(D1-D2) / D2≤0.27;0.007≤| 23 / |≤0.145; 1.61≤F4 / F≤3.6; 5.7≤F4 / d8≤29.6; 0.36≤BFL / TTL≤0.40; 0.57≤BFL / TL≤0.67; 0.07mm≤d9×R9 / F5≤ 0.66mm; 92mm≤D9×BFL / H≤105mm; 0.99≤D8 / D9≤1.15; 57.57°≤(FOV×F) / H≤60.37°; 16.35≤TTL / H / θ≤ 17.98; 0.005≤|(HF×θ) / (F×θ)|≤0.051; 2.54≤F / H≤2.88; 0.17°≤arctan(SAG1 / D1)≤0.265°; 0.68≤ R3 / F2≤1.04; 0.92≤|SAG1 / SAG2|≤1.43; 0≤|R1 / F1|≤0.091; -1.03≤F2 / F≤-0.72; 0.88≤F3 / F≤1.45; Wherein, F is the total effective focal length of the optical lens, ENPD is the entrance pupil diameter of the optical lens, R9 is the curvature radius of the first side surface of the fifth lens, F5 is the effective focal length of the fifth lens, DST is the effective aperture of the aperture in the optical lens, R1 is the curvature radius of the first side surface of the first lens, D1 is the maximum aperture of the first side surface of the first lens corresponding to the maximum field of view of the optical lens, TL is the distance from the first side surface of the first lens to the second side surface of the fifth lens on the optical axis, R2 is the curvature radius of the second side surface of the first lens, F1 is the effective focal length of the first lens, R5 is the curvature radius of the first side surface of the third lens, D6 is the maximum light-clearing aperture of the second side surface of the third lens corresponding to the maximum field of view of the optical lens, D7 is the maximum light-clearing aperture of the first side surface of the fourth lens corresponding to the maximum field of view of the optical lens, SAG2 is the vector height at the maximum light-clearing aperture of the second side surface of the first lens corresponding to the maximum field of view of the optical lens, d2 is the air interval between the first lens and the second lens on the optical axis, F4 is the effective focal length of the fourth lens, D2 is the maximum light-clearing aperture of the second side surface of the first lens corresponding to the maximum field of view of the optical lens, 23 is the combined optical power of the second lens and the third lens, is the focal length of the entire group of the optical lens, d8 is the center thickness of the fourth lens on the optical axis, BFL is the back focal length of the optical lens, TTL is the total optical length of the optical lens, d9 is the air interval between the fourth lens and the fifth lens on the optical axis, D9 is the maximum light-clearing aperture of the first side surface of the fifth lens corresponding to the maximum field of view of the optical lens, D8 is the maximum light-clearing aperture of the second side surface of the fourth lens corresponding to the maximum field of view of the optical lens, FOV is the maximum field of view of the optical lens, H is the image height corresponding to the maximum field of view of the optical lens, θ is the radian value of the maximum field of view of the optical lens, SAG1 is the vector height at the maximum light-clearing aperture of the first side surface of the first lens corresponding to the maximum field of view of the optical lens, R3 is the radius of curvature of the first side surface of the second lens, F2 is the effective focal length of the second lens, and F3 is the effective focal length of the third lens.

25. The optical lens according to any one of claims 1 to 6, characterized in that: The optical lens satisfies at least one of the following conditions: 57.5773°≤(FOV×F) / H≤60.3655°;16.3533≤TTL / H / θ≤17.9763;0.0050≤|(H-F×θ) / (F×θ)|≤0.0509;0.3648≤BFL / TTL≤0.3981;0.5743≤BFL / TL≤0.6614;2.5745≤F / H≤2.8759;0.9088≤DST / F≤1.2363;1.2669≤F4 / D7≤3.4936;7.7018≤|F1 / F|≤16225.5488;0.3214≤SAG2 / d2≤0.5738;0.1744°≤arctan(SAG1 / D1)≤0.2608°;0≤|R1 / F1|≤0.0902;0.0079≤| 23 / |≤0.1434;0.6873≤R3 / F2≤1.0396;1.3943≤F5 / F≤3.1509;0.9247≤|SAG1 / SAG2|≤1.4292;92.2381mm≤D9×BFL / H≤103.8425mm;0.2568≤d2 / TL≤0.4063;0.3626≤R9 / F5≤1.0593;0.9622≤D6 / D7≤0.9925;0.9345≤R1 / R2≤1.1998; 0.0725mm ≤ d9 / F≤1.4391; 1.6177≤F4 / F≤3.5970; 0.0422≤(D1-D2) / D2≤0.2618; 0.7045≤D1 / TL≤0.7994; 5.7964≤F4 / d8≤29.5481; -0.2263≤F / R5≤0.2962; Wherein, FOV is the maximum field of view angle of the optical lens, F is the total effective focal length of the optical lens, H is the image height corresponding to the maximum field of view angle of the optical lens, TTL is the total optical length of the optical lens, θ is the radian value of the maximum field of view angle of the optical lens, BFL is the back focal length of the optical lens, TL is the distance from the first side surface of the first lens to the second side surface of the fifth lens on the optical axis, DST is the effective aperture of the aperture in the optical lens, F4 is the effective focal length of the fourth lens, D7 is the maximum aperture of the first side surface of the fourth lens corresponding to the maximum field of view angle of the optical lens, and D1 is the maximum clear aperture of the first side surface of the first lens corresponding to the maximum field angle of the optical lens, D2 is the maximum clear aperture of the second side surface of the first lens corresponding to the maximum field angle of the optical lens, F1 is the effective focal length of the first lens, SAG2 is the vector height at the maximum clear aperture of the second side surface of the first lens corresponding to the maximum field angle of the optical lens, d2 is the air interval between the first lens and the second lens on the optical axis, SAG1 is the vector height at the maximum clear aperture of the first side surface of the first lens corresponding to the maximum field angle of the optical lens, and R1 is the radius of curvature of the first side surface of the first lens, 23 is the combined optical power of the second lens and the third lens, is the focal power of the entire group of the optical lens, R3 is the radius of curvature of the first side surface of the second lens, F2 is the effective focal length of the second lens, F3 is the effective focal length of the third lens, F5 is the effective focal length of the fifth lens, D9 is the maximum clear aperture of the first side surface of the fifth lens corresponding to the maximum field angle of the optical lens, R9 is the radius of curvature of the first side surface of the fifth lens, D6 is the maximum clear aperture of the second side surface of the third lens corresponding to the maximum field angle of the optical lens, R2 is the radius of curvature of the second side surface of the first lens, d9 is the air interval between the fourth lens and the fifth lens on the optical axis, d1 is the center thickness of the first lens on the optical axis, D8 is the maximum clear aperture of the second side surface of the fourth lens corresponding to the maximum field angle of the optical lens, d8 is the center thickness of the fourth lens on the optical axis, and R5 is the radius of curvature of the first side surface of the third lens.

26. An electronic device, characterized in that: The invention comprises an optical lens according to any one of claims 1 to 25 and an imaging element for converting an optical image formed by the optical lens into an electrical signal.

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