TW202016601A - Optical lens - Google Patents

Abstract

An optical lens includes, in order from an object side to an image-forming side, a first lens, a second lens, a third lens, a fourth lens and a fifth lens. The first lens has positive refraction power. The second lens has positive refraction power or negative refraction power. The third lens has negative refraction power or positive refraction power. The fourth lens has positive refraction power. The fifth lens has negative refraction power or positive refraction power.

Description

Optical lens

The invention relates to an optical lens, and in particular to an optical lens with small volume and good imaging quality.

In recent years, as the application of imaging devices has become more and more widespread, the demand for miniaturized optical lenses has also increased. Not only that, the imaging quality requirements for optical lenses on the market are also increasing. In order to increase the competitive advantage in the market, miniaturization, high image quality and cost reduction have always been the goals that product developers want to pursue.

Therefore, there is an urgent need to propose a new optical lens, which reduces the manufacturing cost and at the same time realizes the purpose of miniaturizing the optical lens and improving the imaging quality of the optical lens.

The invention relates to an optical lens. Under the premise of reducing manufacturing costs, at the same time realize the miniaturization of the optical lens and improve the imaging quality of the optical lens.

According to the present invention, an optical lens is proposed. The optical lens includes, in order from the object side to the image side, a first lens, a second lens, a third lens, a fourth lens, and a fifth lens. The first lens has positive refractive power. The second lens has refractive power. The third lens has refractive power. The fourth lens has positive refractive power. The fifth lens has positive refractive power. The optical lens satisfies at least one of the following conditions: (1) any one of the second lens and the third lens has a positive refractive power, and the other has a negative refractive power; and (2) the third lens and the fifth lens have a positive refractive power, Or the third lens and the fifth lens have negative refractive power.

In order to have a better understanding of the above and other aspects of the present invention, the following examples are specifically described in conjunction with the accompanying drawings as follows:

The embodiments of the present invention will be described in detail below, together with the drawings as an example. In addition to these detailed descriptions, the present invention can be widely implemented in other embodiments, and the easy replacement, modification, and equivalent changes of any of the described embodiments are included in the scope of this case, and the following patent scope is quasi. In the description of the specification, in order to give the reader a more complete understanding of the present invention, many specific details are provided; however, the present invention may still be implemented on the premise that some or all of these specific details are omitted. In addition, well-known steps or elements are not described in detail to avoid unnecessary limitation of the invention. The same or similar elements in the drawings will be represented by the same or similar symbols. It is important to note that the drawings are for illustrative purposes only and do not represent the actual size or number of elements unless otherwise specified.

FIG. 1 shows an optical lens OL1 according to an embodiment of the invention, and FIG. 2 shows an optical lens OL2 according to another embodiment of the invention. In order to show the characteristics of the implementation 例, only the structures related to the implementation 例 of the present invention are shown, and the remaining structures are 省略. Optical lens OL1, OL2 can be applied to a device with image projection or image capture function, the device includes but is limited to handheld computer system, handheld communication system, aerial camera, sports camera lens, car camera lens , Surveillance system, 數 camera, 數 camera or projector.

Please refer to FIG. 1 and FIG. 2, the optical lenses OL1 and OL2 may include a first lens L1, a second lens L2 and a third from the object side to the image-forming side in order The lens L3, a fourth lens L4 and a fifth lens L5. Moreover, the first lens L1, the second lens L2, the third lens L3, the fourth lens L4, and the fifth lens L5 may be arranged along the optical axis OA.

Specifically, the first lens L1 may have positive power; the second lens L2 may have power, such as positive or negative power; the third lens L3 may have power, such as positive or negative power; the fourth lens L4 may have positive power Diopter; the fifth lens L5 may have diopter, such as positive diopter or negative diopter.

In one embodiment, either the second lens L2 or the third lens L3 may have positive refractive power, and the other may have negative refractive power; in another embodiment, the third lens L3 and the fifth lens L5 have the same refractive power . That is, both the third lens L3 and the fifth lens L5 have positive refractive power, or both the third lens L3 and the fifth lens L5 have negative refractive power; in another embodiment, the second lens L2 has positive refractive power, the third lens L3 and the third lens The five lenses L5 all have negative refractive power; in another embodiment, the second lens L2 has negative refractive power, and the third lens L3 and the fifth lens L5 both have positive refractive power.

In a specific embodiment, the first lens L1 has positive refractive power, the second lens L2 has positive refractive power, the third lens L3 has negative refractive power, the fourth lens L4 has positive refractive power, and the fifth lens L5 has negative refractive power; another specific implementation For example, the first lens L1 has positive refractive power, the second lens L2 has negative refractive power, the third lens L3 has positive refractive power, the fourth lens L4 has positive refractive power, and the fifth lens L5 has positive refractive power.

In some embodiments, the radius of curvature of one of the object-side surfaces S1 of the first lens L1 is R1, the radius of curvature of one of the image-side surfaces S2 of the first lens L1 is R2, and the optical lenses OL1 and OL2 can satisfy at least the following conditions One: -1≤(R1-R2)/(R1+R2), -0.8≤(R1-R2)/(R1+R2), (R1-R2)/(R1+R2)≤0 and (R1- R2)/(R1+R2)≤0.5.

In some embodiments, the radius of curvature of one of the object-side surfaces S3 of the second lens L2 is R3, the radius of curvature of one of the image-side surfaces S4 of the second lens L2 is R4, and the optical lenses OL1 and OL2 can satisfy at least the following conditions One: -0.5≤(R3-R4)/(R3+R4), 0≤(R3-R4)/(R3+R4), (R3-R4)/(R3+R4)≤0.5, (R3-R4 )/(R3+R4)≤0.8 and (R3-R4)/(R3+R4)≤1.

In some embodiments, the radius of curvature of one of the object-side surfaces S5 of the third lens L3 is R5, the radius of curvature of one of the image-side surfaces S6 of the third lens L3 is R6, and the optical lenses OL1 and OL2 can satisfy at least the following conditions One: -1.5≤(R5-R6)/(R5+R6), -1≤(R5-R6)/(R5+R6), (R5-R6)/(R5+R6)≤-0.5, (R5 -R6)/(R5+R6)≤0 and (R5-R6)/(R5+R6)≤0.5.

In some embodiments, the radius of curvature of one of the object-side surfaces S7 of the fourth lens L4 is R7, the radius of curvature of one of the image-side surfaces S8 of the fourth lens L4 is R8, and the optical lenses OL1 and OL2 can satisfy at least the following conditions One: -1≤(R7-R8)/(R7+R8), -0.5≤(R7-R8)/(R7+R8), (R7-R8)/(R7+R8)≤0, (R7- R8)/(R7+R8)≤0.35 and (R7-R8)/(R7+R8)≤0.5.

One of the object-side surfaces S9 of the fifth lens L5 has a radius of curvature of R9, and one of the image-side surfaces S10 of the fifth lens L5 has a radius of curvature of R10, and the optical lenses OL1 and OL2 can satisfy at least one of the following conditions: -1≤ (R9-R10)/(R9+R10), -0.8≤(R9-R10)/(R9+R10), -0.5≤(R9-R10)/(R9+R10), -0.3≤(R9-R10) /(R9+R10), (R9-R10)/(R9+R10)≤0 and (R9-R10)/(R9+R10)≤0.5.

The first lens L1 has a central thickness T1. The central thickness T1 is, for example, the length of the first lens L1 in the optical axis OA direction. In some embodiments, the center thickness T1 of the first lens L1 may be greater than the center thickness of any of the second lens L2, the third lens L3, the fourth lens L4, and the fifth lens L5. Further, in some embodiments, the first lens L1 may satisfy at least one of the following conditions: 0.85 millimeters (mm) ≤ T1, 1 mm ≤ T1, 1.2 mm ≤ T1, T1 ≤ 1.35 mm, T1 ≤ 1.5 mm, and T1≤2mm.

In some embodiments, the distance from the object-side surface S1 of the first lens L1 to an imaging plane I is TTL, the focal lengths of the optical lenses OL1 and OL2 are f, and the optical lenses OL1 and OL2 can satisfy the following conditions At least one of: 1≤TTL/f, 1.3≤TTL/f, 1.5≤TTL/f, TTL/f≤1.6, TTL/f≤1.8, TTL/f≤2, TTL/f≤2.3 and TTL/f ≤2.5.

In some embodiments, the optical lens OL1, OL2 has a half image sensor height of Y', and the optical lens OL1, OL2 can satisfy at least one of the following conditions: 1≤f/Y', 1.2≤f/ Y', 1.4≤f/Y', 1.6≤f/Y', f/Y'≤1.7, f/Y'≤2, f/Y'≤2.3 and f/Y'≤2.5.

In some embodiments, the angle of view of the optical lenses OL1, OL2 is FOV, and the optical lenses OL1, OL2 can satisfy at least one of the following conditions: 30°≤FOV, 40°≤FOV, FOV≤70°, and FOV≤85° .

In some embodiments, the optical lenses OL1 and OL2 may further include an aperture St and/or a protection sheet C. In addition, an image capturing unit (not shown) can be provided on the imaging surface I, which can photoelectrically convert the light beams passing through the optical lenses OL1 and OL2. The aperture St may be provided on the object side of the first lens L1, any gap between the first lens L1 to the fifth lens L5, or between the fifth lens L5 and the imaging surface I; the protective sheet C may be provided Between the fifth lens L5 and the imaging plane I. In a specific embodiment, the aperture St is disposed before the object side surface S1 of the first lens L1, which means that the aperture St is closer to the object side than the first lens L1, but not limited thereto.

In some embodiments, the aperture values of the optical lenses OL1 and OL2 are Fno, and the optical lenses OL1 and OL2 can satisfy at least one of the following conditions: 0≤(Fno×TTL)/(FOV×Y'), 0.05≤( Fno×TTL)/(FOV×Y'), (Fno×TTL)/(FOV×Y')≤0.1, (Fno×TTL)/(FOV×Y')≤0.15, (Fno×TTL)/(FOV ×Y')≤0.2, (Fno×TTL)/(FOV×Y')≤0.25 and (Fno×TTL)/(FOV×Y')≤0.3.

In some embodiments, the first lens L1 has a refractive index N1, an Abbe number V1, the second lens L2 has a refractive index N2, an Abbe number V2, the third lens L3 has a refractive index N3, an Abbe number V3, and the fourth The lens L4 has a refractive index N4 and an Abbe number V4, the fifth lens L5 has a refractive index N5 and an Abbe number V5, and the optical lenses OL1 and OL2 can satisfy at least one of the following conditions: N1>N4, N1>N5, N4 >N2, N4>N3, N5>N2, N5>N3, V2>V1, V3>V1, V1>V4 and V1>V5.

Further, in some embodiments, the optical lenses OL1 and OL2 may satisfy at least one of the following conditions: N1-N4≥0.05, N1-N5≥0.05, N4-N2≥0.05, N4-N3≥0.05, N5-N2 ≥0.05, N5-N3≥0.05, V2-V1≥5, V3-V1≥5, V1-V4≥5 and V1-V5≥5.

In some implementations, the first lens L1, the second lens L2, the third lens L3, the fourth lens L4, and the fifth lens L5 may be a spherical lens, a free-form lens, or an aspheric lens, respectively.

Specifically, each free-form surface lens has at least one free-form surface, meaning that the object-side surface and/or image-side surface of the free-form surface lens is a free-form surface; and each aspherical lens has at least one aspherical surface, meaning That is, the object-side surface and/or image-side surface of the aspheric lens is an aspheric surface. And each aspheric surface can satisfy the following mathematical formula:

Among them, Z is the coordinate value in the optical axis OA direction, the light transmission direction is the positive direction, A4, A6, A8, A10, A12, A14 and A16 are aspheric coefficients, K is the quadratic surface constant, C=1/ R, R is the radius of curvature, Y is the coordinate value orthogonal to the direction of the optical axis OA, and the direction away from the optical axis OA is the positive direction. In addition, the value of each parameter or coefficient of each aspheric surface mathematical formula can be set separately to determine the focal length of each position point of the aspheric surface.

In a specific embodiment, the first lens L1 may be a spherical lens, and at least one of the second lens L2, the third lens L3, the fourth lens L4, and the fifth lens L5 may be an aspheric lens, but it is not intended to limit the present invention .

In still another specific embodiment, the first lens L1 is a spherical lens, and the second lens L2, the third lens L3, the fourth lens L4, and the fifth lens L5 are all aspheric lenses. For example, the first lens L1 may be a spherical lens in which the object-side surface S1 and the image-side surface S2 are both spherical surfaces, and the second lens L2, third lens L3, fourth lens L4, and fifth lens L5 may be objects The side surfaces S3, S5, S7, S9 and the image side surfaces S4, S6, S8, S10 are all aspheric lenses with aspheric surfaces.

Furthermore, in an embodiment, the fifth lens L5 of the optical lenses OL1, OL2 is an aspherical lens, and the image side surface S10 is an aspherical surface, and the image side surface S10 of the fifth lens L5 has an inverse curvature Click IF. Wherein, the distance from the inflexion point IF to the optical axis OA is h, including but not limited to the shortest distance or vertical distance from the inversion point IF to the optical axis OA; the distance from the outer diameter of the fifth lens L5 to the optical axis OA is H , Including but not limited to the shortest distance or vertical distance from the radius and outer diameter of the fifth lens L5 to the optical axis OA; the image-side surface S10 of the fifth lens L5 and the optical axis OA have an intersection point P1, and the inflexion point IF is projected to The distance between the position P2 of the optical axis OA and the intersection point P1 is d, and the optical lenses OL1 and OL2 can satisfy at least one of the following conditions: 0.4≤h/H, 0.6≤h/H, h/H≤0.9, 5≤H /d, 10≤H/d, H/d≤16, H/d≤20, H/d≤25 and H/d≤30.

In some implementations 例, the first lens L1, the second lens L2, the third lens L3, the fourth lens L4 and the fifth lens L5 may be respectively made of a glass lens made of glass material or made of plastic material A plastic lens. Among them, the material of the plastic lens may include, but is limited to, polycarbonate, cycloolefin copolymer (例 such as APEL), and polyester resin (例 such as OKP4 or OKP4HT), etc., or may include the three of the foregoing Mixing and/or composite materials of at least one料.

For example, the first lens L1 may be a glass lens, and at least one of the second lens L2, the third lens L3, the fourth lens L4, and the fifth lens L5 may be a plastic lens, but it is not intended to limit the present invention.

As shown in FIGS. 1 and 2, the object-side surface S1 of the first lens L1 may be a convex surface convex toward the object side, which has a positive refractive power; the image-side surface S2 may be a concave surface concave toward the object side , Which has a positive refractive power. Further, the first lens L1 may adopt a lens with positive refractive power, including but not limited to any one or combination of a convex-concave lens with positive refractive power, a glass or plastic lens, and a spherical or aspherical lens.

Both the object-side surfaces S3 and S5 of the second lens L2 and the third lens L3 may be convex surfaces convex toward the object side, which have positive refractive power; the image-side surfaces S4, S6 may be concave surfaces concave toward the object side , Which has a positive refractive power. Further, the second lens L2 and the third lens L3 may each use a lens with positive or negative refractive power, including but not limited to convex and concave lenses, glass or plastic lenses with positive or negative refractive power, and spherical or aspheric lenses Any one or combination.

The object-side surface S7 of the fourth lens L4 may be a concave surface concave toward the image side, which has negative refractive power; the image-side surface S8 may be a convex surface convex toward the image side, which has negative refractive power. Further, the fourth lens L4 may adopt a lens with positive refractive power, including but not limited to any one or combination of a meniscus lens with positive refractive power, a glass or plastic lens, and a spherical or aspherical lens.

The object-side surface S9 of the fifth lens L5 may be concave toward the image side away from the optical axis OA, and may have a convex surface protruding toward the object side near the optical axis OA, which has a positive refractive power at the optical axis OA The image side surface S10 may be convex toward the image side away from the optical axis OA, and may be concave toward the object side near the optical axis OA, which has a positive refractive power at the optical axis OA. Further, the fifth lens L5 may use a lens having negative or positive refractive power, including but not limited to having negative or positive refractive power, and the center positions of the object-side surface S9 and the image-side surface S10 of the fifth lens L5 are respectively Convex and concave convex-concave glass aspheric lenses or convex-concave plastic aspheric lenses.

FIG. 3A shows an embodiment of each lens of the optical lens OL1 in FIG. 1 of the present invention, which includes the radius of curvature, thickness, refractive index, Abbe number (dispersion coefficient), etc. of each lens. The surface codes of the lenses are arranged in order from the object side to the image side, for example: "St" stands for the aperture St, "S1" stands for the object side surface S1 of the first lens L1, and "S2" stands for the image side of the first lens L1 The surfaces S2..., "S11" and "S12" represent the object-side surface S11 and the image-side surface S12 of the protective sheet C, etc., respectively. In addition, "thick 度" represents the distance 離 between the surface and a surface adjacent to the image side. For example, the "thick 度" of the object-side surface S1 is the object-side surface S1 of the first lens L1 and the image-side surface S2 of the first lens L1. The "thickness" of the image-side surface S2 is the distance 離 between the image-side surface S2 of the first lens L1 and the object-side surface S3 of the second lens L2.

FIG. 3B 列 shows the aspherical surface of the aspherical lens of the embodiment of the optical lens OL1 of FIG. 1 of the present invention.若The object side surfaces S3, S5, S7, S9 and the image side surfaces S4, S6, S8, S10 of the second lens L2, third lens L3, fourth lens L4, and fifth lens L5 of the optical lens OL1 are aspherical surfaces , Then each aspheric surface 數 each part of the learning formula 數 can be shown in Figure 3B.

As shown in FIG. 2 again, the optical lens OL2 is substantially similar to the optical lens OL1, and the same symbols are used for the elements. Among them, the main difference between the optical lens OL2 and the optical lens OL1 is that the second lens L2 of the optical lens OL1 has positive refractive power, the third lens L3 and the fifth lens L5 both have negative refractive power; the second lens L2 of the optical lens OL2 has negative Refractive power, both the third lens L3 and the fifth lens L5 have positive refractive power.

FIG. 4A 列 shows an embodiment of each lens 參數 of the optical lens OL2 in FIG. 2 of the present invention, and its definition and meaning are substantially the same as those in FIG. 3A.

FIG. 4B 列 shows the aspherical surface of the aspherical lens of the embodiment of the optical lens OL2 of FIG. 2 of the present invention.若The object side surfaces S3, S5, S7, S9 and the image side surfaces S4, S6, S8, S10 of the second lens L2, third lens L3, fourth lens L4, and fifth lens L5 of the optical lens OL2 are aspherical surfaces , Then each aspheric surface 數 each part of the learning formula 數 can be shown in Figure 4B.

FIG. 5 shows the specific parameters of the optical lenses OL1 and OL2 in FIGS. 3A and 4A of the present invention, including the focal length f, the distance TTL from the object-side surface S1 of the first lens L1 to the imaging plane I, and the aperture Value Fno, imaging height Y', angle of view FOV, distance H from the outer diameter of the fifth lens L5 to the optical axis OA, distance h from the inflection point IF of the fifth lens L5 to the optical axis OA, the image side of the fifth lens L5 The distance d from the intersection point of the surface S10 and the optical axis OA to the position where the inflection point IF is projected onto the optical axis OA, the radius of curvature R1 to R10 of each lens surface of the first lens L1 to the fifth lens L5, and the relationship between the above parameters The value of the formula.

It can be known from the above-mentioned embodiments that the optical lenses OL1 and OL2 can have both the characteristics of miniaturization and good imaging quality under the premise of reducing the manufacturing cost.

In summary, although the present invention has been disclosed as above with examples, it is not intended to limit the present invention. Those with ordinary knowledge in the technical field to which the present invention belongs can make various modifications and retouching without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be deemed as defined by the scope of the attached patent application.

OL1, OL2: Optical lens L1: First lens L2: Second lens L3: Third lens L4: Fourth lens L5: Fifth lens S1, S3, S5, S7, S9, S11: Object-side surfaces S2, S4, S6, S8, S10, S12: Image side surface OA: Optical axis T1: Center thickness St: Aperture C: Protective sheet I: Imaging plane Y': Imaging height IF: Reflex point TTL, d, H, h: Distance P1 : Intersection P2: Location

FIG. 1 illustrates an optical lens according to an embodiment of the invention. FIG. 2 illustrates an optical lens according to another embodiment of the invention. FIG. 3A 列 shows an embodiment of each lens 參數 of the optical lens of FIG. 1 of the present invention. FIG. 3B shows the aspherical surface of the aspherical lens of the embodiment of the optical lens of FIG. 1 of the present invention. FIG. 4A 列 shows an embodiment of each lens 參數 of the optical lens of FIG. 2 of the present invention. FIG. 4B 列 shows the aspherical surface of the aspherical lens of the embodiment of the optical lens of FIG. 2 of the present invention. FIG. 5 illustrates the specific parameter performance of the optical lens of FIGS. 3A and 4A of the present invention.

OL1: optical lens

L1: the first lens

L2: second lens

L3: third lens

L4: fourth lens

L5: Fifth lens

S1, S3, S5, S7, S9, S11: Object-side surface

S2, S4, S6, S8, S10, S12: Image side surface

OA: optical axis

T1: Center thickness

St: Aperture

C: Protective film

I: imaging surface

Y’: imaging height

IF: Reflex point

TTL, d, H, h: distance

P1: intersection

P2: Location

Claims (10)

An optical lens, in order from the object side to the image side, comprises: a first lens with positive power; a second lens with power; a third lens with power; a fourth lens with positive power; and a A fifth lens having a refractive power, and the optical lens satisfies at least one of the following conditions: any one of the second lens and the third lens has a positive refractive power, and the other has a negative refractive power; and the third lens and the The fifth lens has positive refractive power, or the third lens and the fifth lens have negative refractive power. An optical lens includes, in order from the object side to the image side, a first lens with an object-side surface with a radius of curvature R1 and an image-side surface with a radius of curvature R2; a second lens with a radius of curvature The object-side surface of R3 and an image-side surface with a radius of curvature R4; a third lens with an object-side surface with a radius of curvature R5 and an image-side surface with a radius of curvature R6; a fourth lens with a curvature An object-side surface with a radius of R7 and an image-side surface with a radius of curvature R8; and a fifth lens having an object-side surface with a radius of curvature R9 and an image-side surface with a radius of curvature R10, and the optical lens satisfies At least one of the following conditions: -1≤(R1-R2)/(R1+R2), (R1-R2)/(R1+R2)≤0.5, -0.5≤(R3-R4)/(R3+R4) , (R3-R4)/(R3+R4)≤1, -1.5≤(R5-R6)/(R5+R6), (R5-R6)/(R5+R6)≤0.5, -1≤(R7- R8)/(R7+R8), (R7-R8)/(R7+R8)≤0.5, -1≤(R9-R10)/(R9+R10) and (R9-R10)/(R9+R10)≤ 0.5. An optical lens has an optical axis. The optical lens includes, in order from the object side to the image side, a first lens with positive power; a second lens with power; a third lens with power; a fourth A lens having a positive refractive power; and a fifth lens having an image side surface, a distance from an inflection point of the image side surface to the optical axis is h, a distance from an outer diameter of the fifth lens to the optical axis Is H; the image-side surface and the optical axis have an intersection point, the distance between the position where the inflexion point is projected to the optical axis and the intersection point is d, and the optical lens satisfies at least one of the following conditions: 0.4≤h/ H, h/H≤0.9, 5≤H/d and H/d≤30. The optical lens as described in item 1 or 3 of the patent application, wherein the first lens has an object-side surface with a radius of curvature R1 and an image-side surface with a radius of curvature R2, and the second lens has a radius of curvature of The object-side surface of R3 and the image-side surface with a radius of curvature R4, the third lens has an object-side surface with a radius of curvature R5 and the image-side surface with a radius of curvature R6, and the fourth lens has a radius of curvature of The object-side surface of R7 and the image-side surface with a radius of curvature R8, the fifth lens has an object-side surface with a radius of curvature R9 and an image-side surface with a radius of curvature R10, and the optical lens satisfies at least the following conditions One: -1≤(R1-R2)/(R1+R2), (R1-R2)/(R1+R2)≤0.5, -0.5≤(R3-R4)/(R3+R4), (R3- R4)/(R3+R4)≤1, -1.5≤(R5-R6)/(R5+R6), (R5-R6)/(R5+R6)≤0.5, -1≤(R7-R8)/( R7+R8), (R7-R8)/(R7+R8)≤0.5, -1≤(R9-R10)/(R9+R10) and (R9-R10)/(R9+R10)≤0.5. The optical lens as described in item 1 or 2 of the patent application range, wherein the distance from an inflection point of the image-side surface of the fifth lens to an optical axis is h, and an outer diameter of the fifth lens to the light The distance of the axis is H, the image-side surface of the fifth lens has an intersection with the optical axis, the position where the inflection point is projected to the optical axis and the intersection is d, and the optical lens satisfies the following conditions At least one of: 0.4≤h/H, h/H≤0.9, 5≤H/d and H/d≤30. The optical lens as described in any one of patent application items 1 to 3, wherein the distance from the object-side surface of the first lens to an imaging surface is TTL, the focal length of the optical lens is f, and the imaging height Is Y', angle of view is FOV, aperture value is Fno, and the optical lens meets at least one of the following conditions: 1≤TTL/f, TTL/f≤2.5, 1≤f/Y', f/Y'≤2.5 , 0≤(Fno×TTL)/(FOV×Y'), (Fno×TTL)/(FOV×Y')≤0.3, 30°≤FOV and FOV≤85°. The optical lens as described in any one of claims 1 to 3, wherein the first lens has a central thickness T1, and 0.85 mm≤T1. The optical lens as described in any one of claims 1 to 3, wherein the first lens has a refractive index N1 and an Abbe number V1, and the second lens has a refractive index N2 and an Abbe number V2, The third lens has a refractive index N3 and an Abbe number V3, the fourth lens has a refractive index N4 and an Abbe number V4, the fifth lens has a refractive index N5 and an Abbe number V5, and the optical lens satisfies the following conditions At least one of: N1>N4, N1>N5, N4>N2, N4>N3, N5>N2, N5>N3, V2>V1, V3>V1, V1>V4 and V1>V5. The optical lens as described in any one of claims 1 to 3, wherein the object-side surface of the first lens is a convex surface that is convex toward the object side. The optical lens according to any one of claims 1 to 3, wherein the optical lens satisfies at least one of the following conditions: the first lens is a convex-concave lens, the second lens is a convex-concave lens, the The third lens is a meniscus lens, the fourth lens is a meniscus lens, and the fifth lens is a meniscus lens.

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