Imaging system components

Abstract

The application provides an imaging system assembly, wherein the maximum height L of a lens barrel, the half of the diagonal length of an effective pixel area on an imaging surface of the imaging system assembly ImgH satisfy 1.0L / ImgH<1.3; the effective focal length f of the imaging system assembly, the radius of curvature R3 of the object side surface of the second lens, the radius of curvature R4 of the image side surface of the second lens satisfy -0.6f / R3+f / R4<-0.2; the effective focal length f2 of the second lens, the outer diameter D2s of the object side surface of the second spacer element, the inner diameter d2s of the object side surface of the second spacer element, the radius of curvature R3 of the object side surface of the second lens, the air interval T23 of the second lens and the third lens on the optical axis satisfy 1.0f2*(D2s-d2s) / (R3*T23)<3.5. The application solves the problems of poor assembly stability and serious stray light in the prior art.

Description

Technical Field

[0001] This invention relates to the field of imaging equipment technology, and more specifically, to an imaging system component. Background Technology

[0002] As electronic products are constantly being updated and iterated, miniaturization and comprehensive functionality have become the mainstream trends in the market. With the gradual improvement of manufacturing processes, many high-quality imaging system components are being made smaller to allow for greater spatial arrangement freedom in the final device, thus meeting the pursuit of thinner and lighter electronic devices. However, the compression of the size of five-element imaging system components can push the lens shape to its limits, limiting the available support space and making it prone to assembly instability. Furthermore, the close proximity of the lenses can lead to collisions, resulting in scratches and even stray light, and light can easily enter the lens structure, generating stray light. Therefore, controlling the optical parameters of the lenses, the distance between them, and the size of the spacers to improve assembly stability and reduce stray light effects while ensuring miniaturization is a crucial issue. Summary of the Invention

[0003] The main objective of this invention is to provide an imaging system component to solve the problems of poor assembly stability and severe stray light in existing imaging system components.

[0004] To achieve the above objectives, according to one aspect of the present invention, an imaging system assembly is provided, comprising: a plurality of lenses, the plurality of lenses including a first lens to a fifth lens sequentially from the object side to the image side of the imaging system assembly; a plurality of spacers, wherein a spacer located on the image side of a second lens and at least partially in contact with the image side surface of the second lens is a second spacer, and a spacer located on the image side of a third lens and at least partially in contact with the image side surface of the third lens is a third spacer; and a lens barrel for accommodating the plurality of lenses and the plurality of spacers; wherein the maximum height L of the lens barrel is equal to half the diagonal length of the effective pixel area on the imaging surface of the imaging system assembly (ImgH). The following conditions must be met: 1.0 < L / ImgH < 1.3; the effective focal length f of the imaging system component, the radius of curvature R3 of the object side of the second lens, and the radius of curvature R4 of the image side of the second lens must be met: -0.6 < f / R3 + f / R4 < -0.2; the effective focal length f2 of the second lens, the outer diameter D2s of the object side of the second spacer element, the inner diameter d2s of the object side of the second spacer element, the radius of curvature R3 of the object side of the second lens, and the air gap T23 between the second lens and the third lens on the optical axis of the imaging system component must be met: 1.0 < f2*(D2s-d2s) / (R3*T23) < 3.5.

[0005] According to another aspect of the present invention, an imaging system assembly is provided, comprising: a plurality of lenses, the plurality of lenses including a first lens to a fifth lens sequentially from the object side to the image side of the imaging system assembly; a plurality of spacer elements, wherein a spacer element located on the image side of a second lens and at least partially in contact with the image side surface of the second lens is a second spacer element, a spacer element located on the image side of a third lens and at least partially in contact with the image side surface of the third lens is a third spacer element, a spacer element located on the image side of a fourth lens and at least partially in contact with the image side surface of the fourth lens is a fourth spacer element, and a lens barrel for accommodating the plurality of lenses and the plurality of spacer elements; wherein the maximum thickness CP3 of the third spacer element and the air gap T34 between the third lens and the fourth lens on the optical axis satisfy: 1.0 < CP3 / T34 < 14.0, and the effective focal length f4 of the fourth lens, the refractive index N4 of the fourth lens, the outer diameter D4s of the object side surface of the fourth spacer element, and the outer diameter D3m of the image side surface of the third spacer element satisfy: 0.8 < f4*N4 / (D4s-D3m) < 2.1. This application provides a miniaturized five-element imaging system component. Under the condition that 1.0 < CP3 / T34 < 14.0, the air gap between the third lens and the fourth lens is relatively narrow, which is prone to unstable assembly. By limiting the effective focal length and refractive index of the fourth lens, as well as the outer diameter of the third and fourth spacers, sufficient bearing space is ensured between the third and fourth lenses, reducing the impact of assembly instability caused by the step structure between the third and fourth lenses.

[0006] According to another aspect of the present invention, an imaging system assembly is provided, comprising: a plurality of lenses, the plurality of lenses including a first lens to a fifth lens sequentially from the object side to the image side of the imaging system assembly; a plurality of spacer elements, wherein a second spacer element is located on the image side of a second lens and at least partially in contact with the image side surface of the second lens, a third spacer element is located on the image side of a third lens and at least partially in contact with the image side surface of the third lens, and a fourth spacer element is located on the image side of a fourth lens and at least partially in contact with the image side surface of the fourth lens; and a lens barrel for accommodating the plurality of lenses and the plurality of spacer elements; wherein the second spacer element and the third spacer element... The following conditions must be met for the following: the distance EP23 between the elements along the optical axis, the center thickness CT3 of the third lens along the optical axis, the distance EP34 between the third and fourth spacers along the optical axis, and the center thickness CT4 of the fourth lens along the optical axis: 2.0 < EP23 / CT3 + EP34 / CT4 < 3.0; the following conditions must be met for the following: the inner diameter d3s of the object side of the third spacer and the radius of curvature R6 of the image side of the third lens: -1.4 < d3s / R6 < -1.0; the following conditions must be met for the following: the combined focal length f45 of the fourth and fifth lenses and the inner diameter d4m of the image side of the fourth spacer: 0.5 < f45 / d4m < 1.0. This application provides a miniaturized five-element imaging system component. The center thickness of the lenses and the distance between the spacers are small, and the edge structure of the lenses is prone to internal reflection stray light. By limiting the center thickness and radius of curvature of the third and fourth lenses, the effective focal length of the fourth and fifth lenses, and the spacing and inner diameter of the second, third, and fourth spacers, miniaturization is ensured while the light can obtain a reasonable divergence angle, reducing system sensitivity and ensuring that the main ray can pass through fully. While meeting the image height requirements, the incident light on the lens structure is reduced. The inner diameter of the spacers is used to control the absorption of stray light at the edge position, reducing stray light spots. At the same time, the aberrations at the edge field of view can be reduced, and the image quality can be improved.

[0007] According to another aspect of the present invention, an imaging system assembly is provided, comprising: a plurality of lenses, the plurality of lenses including a first lens to a fifth lens sequentially from the object side to the image side of the imaging system assembly; a plurality of spacer elements, wherein the spacer element located on the image side of the first lens and at least partially in contact with the image side surface of the first lens is a first spacer element; a lens barrel for accommodating the plurality of lenses and the plurality of spacer elements; wherein the maximum height L of the lens barrel and half the diagonal length ImgH of the effective pixel area on the imaging surface of the imaging system assembly satisfy: 1.0 < L / ImgH < 1.3; the effective focal length f of the imaging system assembly, the radius of curvature R3 of the object side surface of the second lens, and the radius of curvature R4 of the image side surface of the second lens satisfy: -0.6 < f / R3 + f / R4 < -0.2; and the outer diameter D1m of the image side surface of the first spacer element and the radius of curvature R3 of the object side surface of the second lens satisfy: 0.05 < D1m / R3 < 0.35. This application provides a five-element imaging system component. By limiting 1.0 < L / ImgH < 1.3 and -0.6 < f / R3 + f / R4 < -0.2, the imaging system component is miniaturized. However, light is diverged after passing through the second lens, resulting in a large step difference between the second and third lenses. This leads to poor assembly stability of the imaging system component and significantly limits its light transmission. By limiting the radius of curvature of the second lens and the outer diameter of the first spacer element, the outer diameter of the first lens can be effectively controlled, increasing the gradient and reducing the assembly step difference. Simultaneously, by controlling the radius of curvature parameter of the second lens, sufficient light transmission of the imaging system component is ensured, improving the signal-to-noise ratio.

[0008] According to another aspect of the present invention, an imaging system assembly is provided, comprising: a plurality of lenses, the plurality of lenses including a first lens to a fifth lens sequentially from the object side to the image side of the imaging system assembly; a plurality of spacer elements, wherein the spacer element located on the image side of the first lens and at least partially in contact with the image side surface of the first lens is a first spacer element; a lens barrel for accommodating the plurality of lenses and the plurality of spacer elements; wherein the maximum height L of the lens barrel and half the diagonal length ImgH of the effective pixel area on the imaging surface of the imaging system assembly satisfy the following condition: 1.0 < L / ImgH < 1.3; the inner diameter d0s of the object side end face of the lens barrel, the maximum effective radius DT11 of the object side surface of the first lens, the inner diameter d0m of the image side end face of the lens barrel, and the maximum effective radius DT51 of the object side surface of the fifth lens satisfy the following condition: 5.0 < d0s / DT11 + d0m / DT51 < 7.0. This application provides a five-element imaging system component. By limiting the light transmittance to 1.0 < L / ImgH < 1.3, the imaging system component achieves miniaturization. However, the light entering the imaging system component is also significantly limited, making it difficult to achieve clear imaging when the light transmittance is insufficient. This application, by limiting the inner diameter of the object-side and image-side end faces of the lens barrel and the maximum effective radius of the first and fifth lenses, ensures the light transmittance of the imaging system component while maintaining miniaturization. This ensures that the incident light field of view is within the design requirements, and that the outgoing light meets the image plane size requirements. It also avoids stray light at the tail end of the lens barrel, thus improving image quality.

[0009] Furthermore, among the multiple spacer elements, the one located on the image side of the fourth lens and in at least partial contact with the image side of the fourth lens is the fourth spacer element. The maximum thickness CP3 of the third spacer element and the air gap T34 between the third and fourth lenses on the optical axis satisfy the following: 1.0 < CP3 / T34 < 14.0. The effective focal length f4 of the fourth lens, the refractive index N4 of the fourth lens, the outer diameter D4s of the object side of the fourth spacer element, and the outer diameter D3m of the image side of the third spacer element satisfy the following: 0.8 < f4*N4 / (D4s-D3m) < 2.1.

[0010] Furthermore, the effective focal length f3 of the third lens, the refractive index N3 of the third lens, and the distance EP23 between the second and third spacers along the optical axis satisfy the following condition: -18.0 < f3*N3 / EP23 < -9.0.

[0011] Furthermore, among the multiple spacer elements, the one located on the image side of the first lens and in at least partial contact with the image side surface of the first lens is the first spacer element. The effective focal length f1 of the first lens, the distance EP01 between the object side end face of the lens barrel and the first spacer element along the optical axis, the center thickness CT1 of the first lens in the optical axis direction, and the radius of curvature R2 of the image side surface of the first lens satisfy the following: 0.8 < f1*EP01 / (CT1*R2) < 2.0.

[0012] Furthermore, among the multiple spacer elements, the one located on the image side of the fourth lens and in at least partial contact with the image side surface of the fourth lens is the fourth spacer element. The maximum thickness CP4 of the fourth spacer element and the air gap T45 between the fourth and fifth lenses on the optical axis satisfy: 0.0 mm. 2 <CP4*T45<0.3mm 2 .

[0013] Furthermore, among the multiple spacer elements, the one located on the image side of the fourth lens and in at least partial contact with the image side surface of the fourth lens is the fourth spacer element. The distance EP23 between the second and third spacer elements along the optical axis, the center thickness CT3 of the third lens on the optical axis, the distance EP34 between the third and fourth spacer elements along the optical axis, and the center thickness CT4 of the fourth lens on the optical axis satisfy the following condition: 2.0 < EP23 / CT3 + EP34 / CT4 < 3.0.

[0014] Furthermore, among the multiple spacer elements, the one located on the image side of the fourth lens and in at least partial contact with the image side surface of the fourth lens is the fourth spacer element. The combined focal length f45 of the fourth lens and the fifth lens and the inner diameter d4m of the image side surface of the fourth spacer element satisfy the following condition: 0.5 < f45 / d4m < 1.0.

[0015] Furthermore, among the multiple spacer elements, the one located on the image side of the fourth lens and in at least partial contact with the image side surface of the fourth lens is the fourth spacer element. The effective focal length f4 of the fourth lens, the outer diameter D4s of the object side surface of the fourth spacer element, and the radius of curvature R7 of the object side surface of the fourth lens satisfy the following condition: -2.5mm < f4 * D4s / R7 < 2.1mm.

[0016] Furthermore, among the multiple spacer elements, the one located on the image side of the first lens and in at least partial contact with the image side surface of the first lens is the first spacer element, and the outer diameter D1m of the image side surface of the first spacer element and the radius of curvature R3 of the object side surface of the second lens satisfy the following condition: 0.05 < D1m / R3 < 0.35.

[0017] Furthermore, the inner diameter d0s of the object-side end face of the lens barrel, the maximum effective radius DT11 of the object-side surface of the first lens, the inner diameter d0m of the image-side end face of the lens barrel, and the maximum effective radius DT51 of the object-side surface of the fifth lens satisfy the following condition: 5.0 < d0s / DT11 + d0m / DT51 < 7.0.

[0018] Furthermore, the inner diameter d3s of the object side of the third spacer element and the radius of curvature R6 of the image side of the third lens satisfy the following condition: -1.4 < d3s / R6 < -1.0.

[0019] According to the technical solution of this invention, the imaging system assembly includes multiple lenses, multiple spacer elements, and a lens barrel. The multiple lenses sequentially include a first lens to a fifth lens from the object side to the image side of the imaging system assembly. Among the multiple spacer elements, the one located on the image side of the second lens and at least partially in contact with the image side surface of the second lens is the second spacer element, and the one located on the image side of the third lens and at least partially in contact with the image side surface of the third lens is the third spacer element. The lens barrel is used to accommodate the multiple lenses and the multiple spacer elements. The maximum height L of the lens barrel and half the diagonal length ImgH of the effective pixel area on the imaging surface of the imaging system assembly satisfy the following condition: 1.0 <L / ImgH<1.3; The effective focal length f of the imaging system component, the radius of curvature R3 of the object side of the second lens, and the radius of curvature R4 of the image side of the second lens satisfy: -0.6<f / R3+f / R4<-0.2; The effective focal length f2 of the second lens, the outer diameter D2s of the object side of the second spacer element, the inner diameter d2s of the object side of the second spacer element, the radius of curvature R3 of the object side of the second lens, and the air gap T23 between the second lens and the third lens on the optical axis of the imaging system component satisfy: 1.0<f2*(D2s-d2s) / (R3*T23)<3.5.

[0020] This application provides a five-element imaging system component. By limiting 1.0 < L / ImgH < 1.3 and -0.6 < f / R3 + f / R4 < -0.2, the imaging system component is miniaturized. However, light is diverged after passing through the front lens, and large differences can easily exist between the lenses, leading to poor assembly stability. Furthermore, edge light can easily enter the lens structure, generating stray light and affecting image quality. By controlling the effective focal length and radius of curvature of the second lens, the distance between the second and third lenses, and the inner and outer diameters of the second spacer element, sufficient bearing space is ensured between the second and third lenses, preventing deformation of the second spacer element and reducing the risk of assembly misalignment. While meeting the light divergence requirements and miniaturization, the assembly stability of the imaging system component is improved. It also avoids collisions and scratches caused by the close distance between the second and third lenses, thus preventing more stray light. The inner diameter of the second spacer element, within a reasonable range, can further intercept stray light, improving image quality. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0022] Figure 1 A schematic diagram of the structure of an imaging system component according to an optional embodiment of the present invention is shown;

[0023] Figure 2A schematic diagram of the stray light path of an imaging system component according to an optional embodiment of the present invention is shown;

[0024] Figure 3 A schematic diagram of the imaging system components according to Embodiment 1 of the present invention is shown;

[0025] Figures 4 to 7 The on-axis chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of Embodiment 1 of the present invention are shown respectively.

[0026] Figure 8 A schematic diagram of the imaging system components according to Embodiment 2 of the present invention is shown;

[0027] Figure 9 A schematic diagram of the imaging system components according to Embodiment 3 of the present invention is shown;

[0028] Figures 10 to 13 The on-axis chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of Embodiment 3 of the present invention are shown respectively.

[0029] Figure 14 A schematic diagram of the imaging system components according to Embodiment 4 of the present invention is shown;

[0030] Figure 15 A schematic diagram of the imaging system components according to Embodiment 5 of the present invention is shown;

[0031] Figures 16 to 19 The on-axis chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of Embodiment 5 of the present invention are shown respectively.

[0032] Figure 20 A schematic diagram of the imaging system components according to Embodiment Six of the present invention is shown;

[0033] Figure 21 A schematic diagram of the imaging system components according to Embodiment 7 of the present invention is shown;

[0034] Figures 22 to 25 The on-axis chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of Embodiment 7 of the present invention are shown respectively.

[0035] Figure 26 A schematic diagram of the imaging system components according to Embodiment 8 of the present invention is shown;

[0036] Figure 27 A stray light energy diagram of an imaging system component according to an alternative embodiment of the present invention is shown;

[0037] Figure 28The stray light energy map of an imaging system component in the prior art that satisfies the following conditions: 1.0 < L / ImgH < 1.3, -0.6 < f / R3 + f / R4 < -0.2, and f2*(D2s-d2s) / (R3*T23) < 1.0 is shown.

[0038] Figure 29 The stray light energy diagram of an imaging system component in the prior art that satisfies the range of 1.0 < L / ImgH < 1.3, -0.6 < f / R3 + f / R4 < -0.2, and 3.5 < f2*(D2s-d2s) / (R3*T23) is shown.

[0039] The above figures include the following reference numerals:

[0040] P0, Lens tube; E1, First lens; S1, Object-side surface of the first lens; S2, Image-side surface of the first lens; P1, First spacer element; E2, Second lens; S3, Object-side surface of the second lens; S4, Image-side surface of the second lens; P2, Second spacer element; E3, Third lens; S5, Object-side surface of the third lens; S6, Image-side surface of the third lens; P3, Third spacer element; P3b, Third auxiliary spacer element; E4, Fourth lens; S7, Object-side surface of the fourth lens; S8, Image-side surface of the fourth lens; P4, Fourth spacer element; E5, Fifth lens; S9, Object-side surface of the fifth lens; S10, Image-side surface of the fifth lens. Detailed Implementation

[0041] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0042] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0043] In this invention, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0044] It should be noted that in this specification, the terms "first," "second," "third," etc., are used only to distinguish one feature from another and do not imply any limitation on the features. Therefore, without departing from the teachings of this application, the first lens discussed below may also be referred to as the second lens or the third lens.

[0045] In the accompanying 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 illustrated 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 illustrative purposes only and are not drawn strictly to scale.

[0046] In this paper, the paraxial region refers to the region near the optical axis. If the lens surface is convex and the location of that convexity 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 location of that concaveness is not defined, it means that the lens surface is concave at least in the paraxial region. The determination of the surface shape in the paraxial region can be based on the judgment method commonly used by those knowledgeable in the field, using the R value (R refers to the radius of curvature of the paraxial region, usually the R value in the lens data in optical software) to determine convexity or concavity. For the object side, a positive R value indicates a convex surface, and a negative R value indicates a concave surface; for the image side, a positive R value indicates a concave surface, and a negative R value indicates a convex surface.

[0047] To address the problems of poor assembly stability and severe stray light in existing imaging system components, this invention provides an imaging system component.

[0048] First Implementation Method

[0049] like Figures 1 to 27 As shown, the imaging system assembly includes multiple lenses, multiple spacer elements, and a lens barrel. The multiple lenses, from the object side to the image side of the imaging system assembly, sequentially include a first lens to a fifth lens. Among the multiple spacer elements, the one located on the image side of the second lens and at least partially in contact with the image side surface of the second lens is the second spacer element, and the one located on the image side of the third lens and at least partially in contact with the image side surface of the third lens is the third spacer element. The lens barrel is used to house the multiple lenses and the multiple spacer elements. The maximum height L of the lens barrel and half the diagonal length ImgH of the effective pixel area on the imaging surface of the imaging system assembly satisfy the following condition: 1.0 < L / ImgH. mgH < 1.3; the effective focal length f of the imaging system component, the radius of curvature R3 of the object side of the second lens, and the radius of curvature R4 of the image side of the second lens satisfy: -0.6 < f / R3 + f / R4 < -0.2; the effective focal length f2 of the second lens, the outer diameter D2s of the object side of the second spacer element, the inner diameter d2s of the object side of the second spacer element, the radius of curvature R3 of the object side of the second lens, and the air gap T23 between the second lens and the third lens on the optical axis of the imaging system component satisfy: 1.0 < f2*(D2s-d2s) / (R3*T23) < 3.5.

[0050] This application provides a five-element imaging system component. By limiting 1.0 < L / ImgH < 1.3 and -0.6 < f / R3 + f / R4 < -0.2, the imaging system component is miniaturized. However, light is diverged after passing through the front lens, and large differences can easily exist between the lenses, leading to poor assembly stability. Furthermore, edge light can easily enter the lens structure, generating stray light and affecting image quality. By controlling the effective focal length and radius of curvature of the second lens, the distance between the second and third lenses, and the inner and outer diameters of the second spacer element, sufficient bearing space is ensured between the second and third lenses, preventing deformation of the second spacer element and reducing the risk of assembly misalignment. While meeting the light divergence requirements and miniaturization, the assembly stability of the imaging system component is improved. It also avoids collisions and scratches caused by the close distance between the second and third lenses, thus preventing more stray light. The inner diameter of the second spacer element, within a reasonable range, can further intercept stray light, improving image quality.

[0051] like Figure 28 The imaging system component shown in the prior art has strong stray light energy under the conditions that 1.0 < L / ImgH < 1.3 and -0.6 < f / R3 + f / R4 < -0.2, while f2*(D2s-d2s) / (R3*T23) < 1.0.

[0052] like Figure 29 The imaging system component shown in the prior art has strong stray light energy under the conditions of 1.0 < L / ImgH < 1.3 and -0.6 < f / R3 + f / R4 < -0.2, and 3.5 < f2*(D2s-d2s) / (R3*T23).

[0053] like Figure 27 The imaging system component shown in this application has weak stray light energy under the conditions of 1.0 < L / ImgH < 1.3 and -0.6 < f / R3 + f / R4 < -0.2, while being controlled within the range of 1.0 < f2*(D2s-d2s) / (R3*T23) < 3.5. Therefore, the imaging system component of this application has good stray light elimination capability.

[0054] Preferably, 1.05 < L / ImgH < 1.25.

[0055] Preferably, -0.59 < f / R3 + f / R4 < -0.25.

[0056] Preferably, -11.8 < f2*(D2s-d2s) / (R3*T23) < -5.2.

[0057] In this embodiment, the fourth spacer is located on the image side of the fourth lens and is at least partially in contact with the image side of the fourth lens. The maximum thickness CP3 of the third spacer and the air gap T34 between the third and fourth lenses on the optical axis satisfy the following condition: 1.0 < CP3 / T34 < 14.0. The effective focal length f4 of the fourth lens, the refractive index N4 of the fourth lens, the outer diameter D4s of the object side of the fourth spacer, and the outer diameter D3m of the image side of the third spacer satisfy the following condition: 0.8 < f4*N4 / (D4s-D3m) < 2.1. When 1.0 < CP3 / T34 < 14.0 is satisfied, the air gap between the third and fourth lenses on the optical axis is relatively narrow, which can easily lead to assembly instability. Controlling f4*N4 / (D4s-D3m) within a reasonable range allows for proper control of light in this optical path, reduces stray light generated by edge rays entering the lens mechanism, and reduces the impact of assembly instability caused by the step structure between the third and fourth lenses. Preferably, 1.05 < CP3 / T34 < 13.99, 0.85 < f4*N4 / (D4s-D3m) < 2.05.

[0058] In this embodiment, the effective focal length f3 of the third lens, the refractive index N3 of the third lens, and the distance EP23 between the second and third spacers along the optical axis satisfy the following condition: -18.0 < f3*N3 / EP23 < -9.0. By limiting f3*N3 / EP23 to a reasonable range, the distance between the second and third spacers along the optical axis can directly control the edge thickness parameter of the third lens, making the thickness ratio parameter of the third lens controllable, which is beneficial for processing and shaping. At the same time, controlling the refractive index and effective focal length of the third lens ensures that the principal rays incident on and exiting the third lens are within a reasonable angular range, while reducing the field curvature sensitivity coefficient of the front and rear air gaps, thus compensating for the high sensitivity of the second and fourth lenses. Preferably, -17.8 < f3*N3 / EP23 < -9.5.

[0059] In this embodiment, the spacer element located on the image side of the first lens and at least partially in contact with the image side surface of the first lens is the first spacer element. The effective focal length f1 of the first lens, the distance EP01 between the object side end face of the lens barrel and the first spacer element along the optical axis, the center thickness CT1 of the first lens along the optical axis, and the radius of curvature R2 of the image side surface of the first lens satisfy the following condition: 0.8 < f1*EP01 / (CT1*R2) < 2.0. By limiting f1*EP01 / CT1 within a reasonable range, the center thickness of the first lens and the distance between the lens barrel and the first spacer element are controlled to reasonably control the thickness ratio of the first lens, which is beneficial to the forming of the first lens, reduces the probability of lens shrinkage, and at the same time, controls the degree of lens curvature in conjunction with the effective focal length to avoid the generation of oblique stray light. Preferably, 0.85 < f1*EP01 / (CT1*R2) < 1.8.

[0060] In this embodiment, the fourth spacer is the one located on the image side of the fourth lens and at least partially in contact with the image side surface of the fourth lens. The maximum thickness CP4 of the fourth spacer and the air gap T45 between the fourth and fifth lenses on the optical axis satisfy the following: 0.0 mm. 2 <CP4*T45<0.3mm 2 By limiting CP4*T45 within a reasonable range, and controlling the maximum thickness of the fourth spacer and the air gap between the fourth and fifth lenses on the optical axis, the field curvature sensitivity of this air gap can be made more reasonable, and the field curvature adjustment more controllable. Preferably, 0.0mm 2 <CP4*T45<0.2mm 2 .

[0061] In this embodiment, the fourth spacer element is located on the image side of the fourth lens and is at least partially in contact with the image side of the fourth lens. The distance EP23 between the second and third spacers along the optical axis, the center thickness CT3 of the third lens along the optical axis, the distance EP34 between the third and fourth spacers along the optical axis, and the center thickness CT4 of the fourth lens along the optical axis satisfy the following condition: 2.0 < EP23 / CT3 + EP34 / CT4 < 3.0. By limiting EP23 / CT3 + EP34 / CT4 within a reasonable range and rationally designing the center thicknesses of the third and fourth lenses, while simultaneously coordinating the distances between the second and third spacers and between the third and fourth spacers along the optical axis, the light obtains a reasonable divergence angle at this position, reducing stray light reflection within the edge mechanism while meeting the image height requirements. Preferably, 2.05 < EP23 / CT3 + EP34 / CT4 < 2.95.

[0062] In this embodiment, the spacer element located on the image side of the fourth lens and at least partially in contact with the image side surface of the fourth lens is the fourth spacer element. The combined focal length f45 of the fourth and fifth lenses and the inner diameter d4m of the image side surface of the fourth spacer element satisfy the following condition: 0.5 < f45 / d4m < 1.0. By limiting f45 / d4m within a reasonable range and reasonably controlling the combined focal length of the fourth and fifth lenses, aberrations at the edge of the field of view can be reduced. Simultaneously, the inner diameter of the fourth spacer element can effectively absorb stray light at the edge, improving image quality. Preferably, 0.51 < f45 / d4m < 0.95.

[0063] In this embodiment, the fourth spacer element is located on the image side of the fourth lens and is at least partially in contact with the image side of the fourth lens. The effective focal length f4 of the fourth lens, the outer diameter D4s of the object side of the fourth spacer element, and the radius of curvature R7 of the object side of the fourth lens satisfy the following condition: -2.5mm < f4*D4s / R7 < 2.1mm. By limiting f4*D4s / R7 within a reasonable range, the effective focal length, radius of curvature of the fourth lens, and the outer diameter of the fourth spacer element can be controlled, thereby improving the light-gathering ability and making the overall optical length of the imaging system components tend to be miniaturized while meeting the image size requirements. Preferably, -2.4mm < f4*D4s / R7 < 2.09mm.

[0064] In this embodiment, the spacer element located on the image side of the first lens and at least partially in contact with it is the first spacer element. The outer diameter D1m of the image side of the first spacer element and the radius of curvature R3 of the object side of the second lens satisfy the following relationship: 0.05 < D1m / R3 < 0.35. By limiting D1m / R3 within a reasonable range and controlling the outer diameter of the first spacer element, the gradient of the increase in the outer diameter of the first lens can be effectively controlled, reducing the small segmentation step difference. At the same time, in conjunction with the control of the radius of curvature parameter of the second lens, the light transmission of the imaging system components is ensured to be sufficient, thereby improving the signal-to-noise ratio. Preferably, 0.06 < D1m / R3 < 0.34.

[0065] In this embodiment, the inner diameter d0s of the object-side end face of the lens barrel, the maximum effective radius DT11 of the object-side surface of the first lens, the inner diameter d0m of the image-side end face of the lens barrel, and the maximum effective radius DT51 of the object-side surface of the fifth lens satisfy the following condition: 5.0 < d0s / DT11 + d0m / DT51 < 7.0. By limiting d0s / DT11 + d0m / DT51 within a reasonable range, the light transmission aperture of the lens barrel, the inner diameter of the image-side end face, and the effective radii of the first and fifth lenses are controlled, ensuring that the incident light field of view is within the design requirements while the outgoing light meets the image size requirements, and avoiding stray light at the tail end of the lens barrel. Preferably, 5.0 < d0s / DT11 + d0m / DT51 < 7.0.

[0066] In this embodiment, the inner diameter d3s of the object-side surface of the third spacer element and the radius of curvature R6 of the image-side surface of the third lens satisfy the following relationship: -1.4 < d3s / R6 < -1.0. By limiting d3s / R6 within a reasonable range and controlling the radius of curvature of the third lens, the light rays passing through the third lens can obtain a reasonable light deflection angle, reducing system sensitivity. Simultaneously, in conjunction with the inner diameter parameter of the third spacer element, the main light ray can pass through fully, while edge-dependent ineffective light rays can be absorbed, reducing stray light spots. Preferably, -1.37 < d3s / R6 < -1.05.

[0067] Second Implementation Method

[0068] like Figures 1 to 27 As shown, the imaging system assembly includes multiple lenses, multiple spacers, and a lens barrel. The multiple lenses, from the object side to the image side, sequentially include a first lens to a fifth lens. Among the multiple spacers, the one located on the image side of the second lens and in at least partial contact with the image side of the second lens is the second spacer; the one located on the image side of the third lens and in at least partial contact with the image side of the third lens is the third spacer; and the one located on the image side of the fourth lens and in at least partial contact with the image side of the fourth lens is the fourth spacer. The lens barrel is used to accommodate the multiple lenses and the multiple spacers. The maximum thickness CP3 of the third spacer and the air gap T34 between the third and fourth lenses on the optical axis satisfy the following: 1.0 < CP3 / T34 < 14.0. The effective focal length f4 of the fourth lens, the refractive index N4 of the fourth lens, the outer diameter D4s of the object side of the fourth spacer, and the outer diameter D3m of the image side of the third spacer satisfy the following: 0.8 < f4*N4 / (D4s-D3m) < 2.1.

[0069] This application provides a miniaturized five-element imaging system component. Under the condition that 1.0 < CP3 / T34 < 14.0, the narrow air gap between the third and fourth lenses can easily lead to assembly instability. By limiting the effective focal length and refractive index of the fourth lens, as well as the outer diameters of the third and fourth spacers, sufficient bearing space between the third and fourth lenses is ensured, and the impact of the step structure between the third and fourth lenses on assembly instability is reduced. This application can also reduce stray light generated by edge rays entering the lens mechanism by controlling a reasonable optical path.

[0070] Preferably, 1.05 < CP3 / T34 < 13.99.

[0071] Preferably, 0.85 < f4*N4 / (D4s-D3m) < 2.05.

[0072] This embodiment may also include other conditional expressions from the first embodiment, which will not be elaborated here.

[0073] Third Implementation Method

[0074] like Figures 1 to 27As shown, the imaging system assembly includes multiple lenses, multiple spacers, and a lens barrel. The multiple lenses, from the object side to the image side, sequentially include a first lens to a fifth lens. Among the multiple spacers, the one located on the image side of the second lens and at least partially in contact with the image side surface of the second lens is the second spacer; the one located on the image side of the third lens and at least partially in contact with the image side surface of the third lens is the third spacer; and the one located on the image side of the fourth lens and at least partially in contact with the image side surface of the fourth lens is the fourth spacer. The lens barrel is used to house the multiple lenses and the multiple spacers. The second and third spacers are positioned along the optical axis. The following conditions must be met between the distance EP23, the center thickness CT3 of the third lens on the optical axis, the distance EP34 between the third and fourth spacers on the optical axis, and the center thickness CT4 of the fourth lens on the optical axis: 2.0 < EP23 / CT3 + EP34 / CT4 < 3.0; the following conditions must be met between the inner diameter d3s of the object side of the third spacer and the radius of curvature R6 of the image side of the third lens: -1.4 < d3s / R6 < -1.0; and the following conditions must be met between the combined focal length f45 of the fourth and fifth lenses and the inner diameter d4m of the image side of the fourth spacer: 0.5 < f45 / d4m < 1.0.

[0075] This application provides a miniaturized five-element imaging system component. The center thickness of the lenses and the distance between the spacers are small, and the edge structure of the lenses is prone to internal reflection stray light. By limiting the center thickness and radius of curvature of the third and fourth lenses, the effective focal length of the fourth and fifth lenses, and the spacing and inner diameter of the second, third, and fourth spacers, miniaturization is ensured while the light can obtain a reasonable divergence angle, reducing system sensitivity and ensuring that the main ray can pass through fully. While meeting the image height requirements, the incident light on the lens structure is reduced. The inner diameter of the spacers is used to control the absorption of stray light at the edge position, reducing stray light spots. At the same time, the aberrations at the edge field of view can be reduced, and the image quality can be improved.

[0076] Preferably, 2.05 < EP23 / CT3 + EP34 / CT4 < 2.95.

[0077] Preferably, -1.37 < d3s / R6 < -1.05.

[0078] Preferably, 0.51 < f45 / d4m < 0.95.

[0079] This embodiment may also include other conditional expressions from the first embodiment, which will not be elaborated here.

[0080] Fourth Implementation Method

[0081] like Figures 1 to 27As shown, the imaging system assembly includes multiple lenses, multiple spacers, and a lens barrel. The multiple lenses, from the object side to the image side, sequentially include a first lens to a fifth lens. Among the multiple spacers, the one located on the image side of the first lens and at least partially in contact with the image side of the first lens is the first spacer. The lens barrel is used to house the multiple lenses and multiple spacers. The maximum height L of the lens barrel and half the diagonal length ImgH of the effective pixel area on the imaging surface of the imaging system assembly satisfy the following: 1.0 < L / ImgH < 1.3. The effective focal length f of the imaging system assembly, the radius of curvature R3 of the object side of the second lens, and the radius of curvature R4 of the image side of the second lens satisfy the following: -0.6 < f / R3 + f / R4 < -0.2. The outer diameter D1m of the image side of the first spacer and the radius of curvature R3 of the object side of the second lens satisfy the following: 0.05 < D1m / R3 < 0.35.

[0082] This application provides a five-element imaging system component. By limiting 1.0 < L / ImgH < 1.3 and -0.6 < f / R3 + f / R4 < -0.2, the imaging system component is miniaturized. However, light is diverged after passing through the second lens, resulting in a large step difference between the second and third lenses. This leads to poor assembly stability of the imaging system component and significantly limits its light transmission. By limiting the radius of curvature of the second lens and the outer diameter of the first spacer element, the outer diameter of the first lens can be effectively controlled, increasing the gradient and reducing the assembly step difference. Simultaneously, by controlling the radius of curvature parameter of the second lens, sufficient light transmission of the imaging system component is ensured, improving the signal-to-noise ratio.

[0083] Preferably, 1.05 < L / ImgH < 1.25.

[0084] Preferably, -0.59 < f / R3 + f / R4 < -0.25.

[0085] Preferably, 0.06 < D1m / R3 < 0.34.

[0086] This embodiment may also include other conditional expressions from the first embodiment, which will not be elaborated here.

[0087] Fifth Implementation Method

[0088] like Figures 1 to 27As shown, the imaging system assembly includes multiple lenses, multiple spacer elements, and a lens barrel. The multiple lenses, from the object side to the image side of the imaging system assembly, sequentially include a first lens to a fifth lens. The lens barrel is used to house the multiple lenses and multiple spacer elements. The maximum height L of the lens barrel and half the diagonal length ImgH of the effective pixel area on the imaging surface of the imaging system assembly satisfy the following condition: 1.0 < L / ImgH < 1.3. The inner diameter d0s of the object side end face of the lens barrel, the maximum effective radius DT11 of the object side surface of the first lens, the inner diameter d0m of the image side end face of the lens barrel, and the maximum effective radius DT51 of the object side surface of the fifth lens satisfy the following condition: 5.0 < d0s / DT11 + d0m / DT51 < 7.0.

[0089] This application provides a five-element imaging system component. By limiting the light transmittance to 1.0 < L / ImgH < 1.3, the imaging system component achieves miniaturization. However, the light entering the imaging system component is also significantly limited, making it difficult to achieve clear imaging when the light transmittance is insufficient. This application, by limiting the inner diameter of the object-side and image-side end faces of the lens barrel and the maximum effective radius of the first and fifth lenses, ensures the light transmittance of the imaging system component while maintaining miniaturization. This ensures that the incident light field of view is within the design requirements, and that the outgoing light meets the image plane size requirements. It also avoids stray light at the tail end of the lens barrel, thus improving image quality.

[0090] Preferably, 1.05 < L / ImgH < 1.25.

[0091] Preferably, 5.0 < d0s / DT11 + d0m / DT51 < 7.0.

[0092] This embodiment may also include other conditional expressions from the first embodiment, which will not be elaborated here.

[0093] Optionally, the imaging system assembly may further include a filter for correcting color deviation and / or a protective glass for protecting the photosensitive element located on the imaging surface. The imaging system assembly in this application may employ multiple lenses, such as the five lenses described above. By rationally allocating the effective focal length, surface shape, center thickness of each lens, and on-axis distance between lenses, the aperture of the imaging system assembly can be effectively increased, the sensitivity of the lens reduced, and the manufacturability of the lens improved, making the imaging system assembly more conducive to manufacturing and suitable for portable electronic devices such as smartphones.

[0094] However, those skilled in the art will understand that the number of lenses constituting the imaging system assembly can be varied to obtain the various results and advantages described herein without departing from the technical solutions claimed in this application. For example, although five lenses have been described as an example in the embodiments, the imaging system assembly is not limited to including five lenses. If necessary, the imaging system assembly may also include other numbers of lenses.

[0095] Figure 1 A schematic diagram of the structure of an imaging system component of this application is shown. Figure 1 The accompanying drawings also indicate parameters such as d0s, d3s, and D1m to provide a clear and intuitive understanding of their meaning. To facilitate the demonstration of the imaging system component structure and specific surface features, these parameters will not be shown in the subsequent descriptions of specific embodiments.

[0096] Where Dis refers to the outer diameter of the object-side surface of the i-th spacer element, dis refers to the inner diameter of the object-side surface of the i-th spacer element, Dim refers to the outer diameter of the image-side surface of the i-th spacer element, dim refers to the inner diameter of the image-side surface of the i-th spacer element, CPi refers to the maximum thickness of the i-th spacer element, which is also the maximum distance along the optical axis from the object-side surface of the i-th spacer element to the image-side surface of the i-th spacer element, and EPij refers to the distance along the optical axis between the image-side surface of the i-th spacer element and the object-side surface of the j-th spacer element, where i and j are both positive integers greater than or equal to 1. d0s is the inner diameter of the object-side end face of the lens barrel, and D0m is the outer diameter of the image-side end face of the lens barrel. The maximum height L of the lens barrel P0 refers to the maximum distance along the optical axis from the object-side end face of the lens barrel P0 to the image-side end face of the lens barrel P0.

[0097] Figure 2 A schematic diagram of stray light path in an imaging system component of this application is shown.

[0098] The following description, with reference to the accompanying drawings, further illustrates examples of specific surface shapes and parameters of imaging system components applicable to the above embodiments.

[0099] It should be noted that any one of the following embodiments, from Embodiment 1 to Embodiment 8, is applicable to all implementation methods of this application.

[0100] Example 1

[0101] like Figures 3 to 7 The image shows an imaging system component according to an embodiment of this application.

[0102] like Figure 3 As shown, the imaging system components, from the object side to the image side, include, in sequence, a first lens E1, a first spacer element P1, a second lens E2, a second spacer element P2, a third lens E3, a third spacer element P3, a fourth lens E4, a fourth spacer element P4, and a fifth lens E5.

[0103] like Figure 3 As shown, the object-side surface of the first lens is S1, the image-side surface of the first lens is S2, the object-side surface of the second lens is S3, the image-side surface of the second lens is S4, the object-side surface of the third lens is S5, the image-side surface of the third lens is S6, the object-side surface of the fourth lens is S7, the image-side surface of the fourth lens is S8, the object-side surface of the fifth lens is S9, and the image-side surface of the fifth lens is S10.

[0104] Table 1 shows the basic structural parameters of the imaging system components in Embodiment 1, where the units for radius of curvature, thickness / distance, and effective focal length are all millimeters (mm).

[0105] Face number Surface type radius of curvature thickness Refractive index Abbe number Conic coefficient OBJ spherical endless 380.0000 STO spherical endless -0.0878 S1 aspherical 1.6802 0.4100 1.55 55.9 -0.6226 S2 aspherical 6.3533 0.2313 -50.4951 S3 aspherical 19.2195 0.4107 1.55 55.9 0.0000 S4 aspherical -3.4711 0.2393 12.4279 S5 aspherical -0.9778 0.2864 1.68 19.2 -0.8576 S6 aspherical -1.9636 0.0200 -2.0660 S7 aspherical -7.0408 0.4615 1.55 55.9 0.0000 S8 aspherical -1.3808 0.0200 -7.8821 S9 aspherical 0.9504 0.5022 1.55 55.9 -1.0907 S10 aspherical 0.6687 0.3804 -1.2642 S11 spherical endless 0.2100 1.52 64.2 S12 spherical endless 0.5400 S13 spherical endless

[0106] Table 1

[0107] Table 1 also shows the object side surface S11, the image side surface S12, and the imaging surface S13 of the filter.

[0108] In this embodiment, the object-side and image-side surfaces of the first to fifth lenses are aspherical, and the surface shape of each aspherical lens can be defined using, but is not limited to, the following aspherical formula:

[0109]

[0110] Where x is the distance vector from the vertex of the aspherical surface at a height h along the optical axis; c is the paraxial curvature of the aspherical surface, c = 1 / R, that is, the paraxial curvature c is the reciprocal of the radius of curvature R in Table 1 above; k is the conic coefficient; Ai is the i-th order correction coefficient of the aspherical surface. Table 2 below gives the higher-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28, A30 that can be used for each aspherical mirror in this embodiment.

[0111] Face number A4 A6 A8 A10 A12 A14 A16 S1 -8.3546E-03 -1.6551E-03 -1.5912E-04 -5.8148E-05 2.7793E-06 -1.3724E-05 -3.5251E-06 S2 -3.5166E-02 -4.6503E-03 -8.3701E-05 -3.9763E-06 8.5474E-05 -6.9841E-06 2.9624E-07 S3 -9.8558E-02 -1.1722E-02 -2.6718E-04 1.0547E-03 3.9628E-04 9.7731E-05 1.1493E-06 S4 -1.4708E-01 -1.1572E-05 5.8766E-03 2.6626E-03 3.1099E-04 -1.1117E-04 -2.5170E-05 S5 -3.8572E-02 4.3333E-02 -4.4581E-03 3.7635E-04 -8.4175E-04 -5.1915E-05 8.4374E-05 S6 -9.6571E-02 5.6982E-02 -2.4531E-03 -1.1581E-03 5.3961E-04 2.5444E-04 -1.2613E-04 S7 2.1796E-01 -1.6937E-01 3.8293E-02 -1.1449E-02 5.1410E-03 -1.1548E-03 1.0787E-03 S8 3.7463E-01 -1.9308E-01 4.9536E-02 -1.0268E-02 -4.0974E-03 6.3780E-03 -2.6589E-03 S9 -2.0248E+00 4.5606E-01 -1.1319E-01 1.8507E-02 -2.5591E-03 7.0034E-03 -4.7009E-03 S10 -3.0033E+00 6.7538E-01 -2.4167E-01 8.5691E-02 -3.7086E-02 2.0855E-02 -8.0571E-03 Face number A18 A20 A22 A24 A26 A28 A30 S1 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S2 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S3 4.1658E-06 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S4 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S5 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S6 -3.6163E-05 -5.2495E-05 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S7 -4.8622E-04 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S8 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S9 -6.5885E-05 9.6841E-04 -2.4062E-04 -1.0479E-04 0.0000E+00 0.0000E+00 0.0000E+00 S10 4.1249E-03 -2.1767E-03 8.8539E-04 -1.0245E-04 3.2522E-04 -1.0150E-04 0.0000E+00

[0112] Table 2

[0113] Figure 4 An on-axis chromatic aberration curve of the imaging system component of Embodiment 1 is shown, which represents the deflection of the focal point of light of different wavelengths after passing through the imaging system component. Figure 5 The astigmatism curves of the imaging system components of Embodiment 1 are shown, representing the meridional image plane curvature and the sagittal image plane curvature. Figure 6 The distortion curves of the imaging system components of Embodiment 1 are shown, representing the distortion magnitude values ​​corresponding to different field of view angles. Figure 7The magnification chromatic aberration curve of the imaging system component of Embodiment 1 is shown, which represents the deviation of light at different image heights on the imaging surface after passing through the imaging system component.

[0114] according to Figures 4 to 7 As can be seen, the imaging system components given in Example 1 can achieve good imaging quality.

[0115] Example 2

[0116] The difference from Embodiment 1 is that the parameters of the lens barrel P0 and the spacer element are different.

[0117] like Figure 8 The image shows the imaging system components of Embodiment 2 of this application. For the sake of brevity, descriptions similar to those in Embodiment 1 are omitted.

[0118] In Embodiment 2, the curvature radius, center thickness, and other parameters of the first to fifth lenses of the imaging system assembly are the same as those in Embodiment 1, as are the inter-lens spacing and higher-order image coefficients, as shown in Tables 1 and 2. However, at least some parameters are different, such as the lens barrel P0, the thickness of the spacer element, the inner diameter and outer diameter of the spacer element, and the distance between the spacer elements. Therefore, the imaging quality of the imaging system assembly in this embodiment is as follows: Figures 4 to 7 As shown.

[0119] Example 3

[0120] The difference from Embodiment 1 is that the parameters of the lens barrel P0, the support member, and the lens are different.

[0121] like Figures 9 to 13 The image system components of Embodiment 3 of this application are described below.

[0122] like Figure 9 As shown, the imaging system components, from the object side to the image side, include, in sequence, a first lens E1, a first spacer element P1, a second lens E2, a second spacer element P2, a third lens E3, a third spacer element P3, a fourth lens E4, a fourth spacer element P4, and a fifth lens E5.

[0123] like Figure 9 As shown, the object-side surface of the first lens is S1, the image-side surface of the first lens is S2, the object-side surface of the second lens is S3, the image-side surface of the second lens is S4, the object-side surface of the third lens is S5, the image-side surface of the third lens is S6, the object-side surface of the fourth lens is S7, the image-side surface of the fourth lens is S8, the object-side surface of the fifth lens is S9, and the image-side surface of the fifth lens is S10.

[0124] Table 3 shows the basic structural parameters of the imaging system components in Embodiment 3, where the units for radius of curvature, thickness / distance, and effective focal length are all millimeters (mm).

[0125] Face number Surface type radius of curvature thickness Refractive index Abbe number Conic coefficient OBJ spherical endless 380.0000 STO spherical endless -0.1099 S1 aspherical 1.6310 0.4066 1.55 55.9 -0.5184 S2 aspherical 4.7126 0.2235 -62.4440 S3 aspherical 11.6034 0.3751 1.55 55.9 0.0000 S4 aspherical -3.3625 0.2393 13.6639 S5 aspherical -0.9492 0.2697 1.68 19.2 -0.9133 S6 aspherical -1.8600 0.0334 -1.4229 S7 aspherical 88.8241 0.3563 1.55 55.9 0.0000 S8 aspherical -1.3651 0.0998 -7.6785 S9 aspherical 0.9782 0.4312 1.55 55.9 -1.1364 S10 aspherical 0.7069 0.3399 -1.2571 S11 spherical endless 0.2100 1.52 64.2 S12 spherical endless 0.5400 S13 spherical endless

[0126] Table 3

[0127] Table 3 also shows the object side surface S11, the image side surface S12, and the imaging surface S13 of the filter.

[0128] In this embodiment, the object-side surface and image-side surface of the first to fifth lenses are both aspherical, and the surface shape of each aspherical lens can be defined by, but is not limited to, the formula (1) in Embodiment 1.

[0129] Table 4 lists the higher-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28, and A30 that can be used for each aspherical mirror in this embodiment.

[0130] Face number A4 A6 A8 A10 A12 A14 A16 S1 -8.3572E-03 -1.4045E-03 -2.3801E-04 -4.0060E-06 1.3175E-05 2.3730E-05 -1.2897E-05 S2 -3.7892E-02 -6.1733E-03 7.7081E-04 6.4315E-04 2.9535E-04 7.7679E-05 8.4474E-06 S3 -1.0263E-01 -9.8607E-03 -9.8286E-04 1.3433E-03 1.5554E-04 2.1617E-04 -8.2583E-05 S4 -1.5545E-01 1.1212E-03 6.5492E-03 3.1881E-03 4.6102E-04 2.7226E-04 1.0927E-04 S5 -3.9364E-02 4.2289E-02 -4.8420E-03 -1.6770E-04 -9.1063E-04 5.3126E-04 -3.3538E-06 S6 -9.8594E-02 5.7979E-02 -2.9384E-03 -1.2401E-03 1.1259E-03 5.0653E-04 7.1621E-05 S7 9.0047E-02 -1.3794E-01 2.5497E-02 -5.3625E-03 2.1294E-03 3.2019E-04 3.3870E-04 S8 2.7818E-01 -1.7994E-01 4.8838E-02 -1.2347E-02 -5.0042E-03 6.4120E-03 -2.0256E-03 S9 -2.0089E+00 4.4893E-01 -1.0889E-01 1.1115E-02 6.4880E-04 7.8992E-03 -5.2681E-03 S10 -3.1128E+00 5.7441E-01 -2.4622E-01 7.6666E-02 -2.7650E-02 2.0681E-02 -5.2865E-03 Face number A18 A20 A22 A24 A26 A28 A30 S1 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S2 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S3 3.3506E-05 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S4 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S5 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S6 -1.7877E-04 1.7028E-04 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S7 -2.6077E-04 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S8 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S9 -1.6225E-03 3.1811E-04 -1.7906E-04 -8.6548E-04 0.0000E+00 0.0000E+00 0.0000E+00 S10 1.5795E-03 -2.5152E-03 6.8106E-04 -1.9711E-04 2.8083E-04 -2.8366E-04 0.0000E+00

[0131] Table 4

[0132] Figure 10 The on-axis chromatic aberration curve of the imaging system component of Embodiment 3 is shown, which represents the deflection of the focal point after light of different wavelengths passes through the imaging system component. Figure 11 The astigmatism curves of the imaging system components of Embodiment 3 are shown, representing the meridional image plane curvature and the sagittal image plane curvature. Figure 12 The distortion curves of the imaging system components of Embodiment 3 are shown, representing the distortion magnitude values ​​corresponding to different field of view angles. Figure 13 The magnification chromatic aberration curve of the imaging system component of Embodiment 3 is shown, which represents the deviation of light at different image heights on the imaging surface after passing through the imaging system component.

[0133] according to Figures 10 to 13 It can be seen that the imaging system components given in Embodiment 3 can achieve good imaging quality.

[0134] Example 4

[0135] The difference from Embodiment 3 is that the parameters of the lens barrel P0 and the spacer element are different.

[0136] like Figure 14 The image shows the imaging system components of Embodiment 4 of this application. For the sake of brevity, descriptions similar to those in Embodiment 3 are omitted.

[0137] In Embodiment 4 and Embodiment 3, the parameters such as the radius of curvature, center thickness, and inter-lens spacing and higher-order image coefficients of the first to fifth lenses in the imaging system assembly are the same, as shown in Tables 3 and 4. However, at least some parameters such as the lens barrel P0, the thickness of the spacer element, the inner diameter and outer diameter of the spacer element, and the distance between the spacer elements are different. Therefore, the imaging quality of the imaging system assembly in this embodiment is as follows: Figures 10 to 13 As shown.

[0138] like Figure 14 As shown, a third auxiliary spacer element P3b is also provided between the third lens and the fourth lens. The object side of the third auxiliary spacer element abuts against the image side of the third spacer element, which improves the abutment stability between the third lens and the fourth lens and can also block stray light.

[0139] Example 5

[0140] The difference from Embodiment 1 is that the parameters of the lens barrel P0, the support member, and the lens are different.

[0141] like Figures 15 to 19 The image system components of Embodiment 5 of this application are described.

[0142] like Figure 15 As shown, the imaging system components, from the object side to the image side, include, in sequence, a first lens E1, a first spacer element P1, a second lens E2, a second spacer element P2, a third lens E3, a third spacer element P3, a fourth lens E4, a fourth spacer element P4, and a fifth lens E5.

[0143] like Figure 15 As shown, the object-side surface of the first lens is S1, the image-side surface of the first lens is S2, the object-side surface of the second lens is S3, the image-side surface of the second lens is S4, the object-side surface of the third lens is S5, the image-side surface of the third lens is S6, the object-side surface of the fourth lens is S7, the image-side surface of the fourth lens is S8, the object-side surface of the fifth lens is S9, and the image-side surface of the fifth lens is S10.

[0144] Table 5 shows the basic structural parameters of the imaging system components in Embodiment 5, where the units for radius of curvature, thickness / distance, and effective focal length are all millimeters (mm).

[0145] Face number Surface type radius of curvature thickness Refractive index Abbe number Conic coefficient OBJ spherical endless 380.0000 STO spherical endless -0.1155 S1 aspherical 1.6137 0.3783 1.55 55.9 -1.1699 S2 aspherical 4.0882 0.2250 -89.5663 S3 aspherical 7.6016 0.3463 1.55 55.9 0.0000 S4 aspherical -3.4880 0.2393 13.7561 S5 aspherical -0.8911 0.2471 1.68 19.2 -0.9667 S6 aspherical -1.6242 0.0238 -0.4538 S7 aspherical 5.0969 0.3430 1.55 55.9 -0.4538 S8 aspherical -1.5944 0.1003 -13.5440 S9 aspherical 0.8511 0.3524 1.55 55.9 -1.1173 S10 aspherical 0.6958 0.3538 -1.1875 S11 spherical endless 0.2100 1.52 64.2 S12 spherical endless 0.5400 S13 spherical endless

[0146] Table 5

[0147] Table 5 also shows the object side surface S11, the image side surface S12, and the imaging surface S13 of the filter.

[0148] In this embodiment, the object-side surface and image-side surface of the first to fifth lenses are both aspherical, and the surface shape of each aspherical lens can be defined by, but is not limited to, the formula (1) in Embodiment 1.

[0149] Table 6 gives the higher-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28, and A30 that can be used for each aspherical mirror in this embodiment.

[0150] Face number A4 A6 A8 A10 A12 A14 A16 S1 -1.1935E-02 -3.6176E-03 -5.4068E-04 5.8145E-05 4.3566E-05 5.5926E-05 -2.6990E-05 S2 -3.4829E-02 -8.5776E-03 1.0663E-03 1.0882E-03 6.8475E-04 4.2242E-04 1.6962E-04 S3 -1.0782E-01 -8.0862E-03 -2.0881E-03 1.8233E-03 -1.2153E-04 3.6542E-04 -1.7446E-04 S4 -1.4943E-01 3.4031E-03 6.4279E-03 3.7218E-03 5.2185E-04 6.8702E-04 2.3834E-04 S5 -4.5367E-02 4.0954E-02 -6.4497E-03 -6.2395E-04 -8.8446E-04 1.2306E-03 -1.6568E-04 S6 -1.1167E-01 6.2095E-02 -2.3261E-03 -1.2573E-03 1.8447E-03 5.6786E-04 2.6837E-04 S7 -1.1167E-01 6.2095E-02 -2.3261E-03 -1.2573E-03 1.8447E-03 5.6786E-04 2.6837E-04 S8 3.0868E-01 -1.5009E-01 4.2721E-02 -1.0238E-02 -6.4153E-03 4.0023E-03 -1.3190E-03 S9 -2.0002E+00 4.5380E-01 -1.1690E-01 1.0786E-02 -2.2184E-03 6.2949E-03 -5.6923E-03 S10 -2.8371E+00 5.0905E-01 -2.4302E-01 3.6809E-02 -2.1903E-02 1.8264E-02 8.8288E-04 Face number A18 A20 A22 A24 A26 A28 A30 S1 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S2 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S3 9.4404E-05 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S4 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S5 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S6 -5.4115E-04 4.9801E-04 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S7 -5.4115E-04 4.9801E-04 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S8 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S9 -1.4466E-03 3.0530E-04 2.4678E-03 -5.8102E-04 0.0000E+00 0.0000E+00 0.0000E+00 S10 3.7865E-03 4.7575E-04 4.3553E-03 8.4227E-04 9.9740E-04 -3.9543E-04 0.0000E+00

[0151] Table 6

[0152] Figure 16 The on-axis chromatic aberration curve of the imaging system component of Embodiment 5 is shown, which represents the deflection of the focal point after light of different wavelengths passes through the imaging system component. Figure 17 The astigmatism curves of the imaging system components of Embodiment 5 are shown, representing the meridional image plane curvature and the sagittal image plane curvature. Figure 18 The distortion curves of the imaging system components of Embodiment 5 are shown, representing the distortion magnitude values ​​corresponding to different field of view angles. Figure 19 The magnification chromatic aberration curve of the imaging system component of Embodiment 5 is shown, which represents the deviation of light at different image heights on the imaging surface after passing through the imaging system component.

[0153] according to Figures 16 to 19 It can be seen that the imaging system components given in Example 5 can achieve good imaging quality.

[0154] Example 6

[0155] The difference from Embodiment 5 is that the parameters of the lens barrel P0 and the spacer element are different.

[0156] like Figure 20 The image shows the imaging system components of Embodiment Six of this application. For the sake of brevity, descriptions similar to those in Embodiment Five are omitted.

[0157] In Embodiments 6 and 5, the parameters such as the radius of curvature, center thickness, and inter-lens spacing and higher-order image coefficients of the imaging system components from the first to the fifth lens are the same, as shown in Tables 5 and 6. However, at least some parameters such as the lens barrel P0, the thickness of the spacer element, the inner diameter and outer diameter of the spacer element, and the distance between the spacer elements are different. Therefore, the imaging quality of the imaging system components in this embodiment is as follows: Figures 16 to 19 As shown.

[0158] Example 7

[0159] The difference from Embodiment 1 is that the parameters of the lens barrel P0, the support member, and the lens are different.

[0160] like Figures 21 to 25 The image system components of Embodiment Seven of this application are described below.

[0161] like Figure 21 As shown, the imaging system components, from the object side to the image side, include, in sequence, a first lens E1, a first spacer element P1, a second lens E2, a second spacer element P2, a third lens E3, a third spacer element P3, a fourth lens E4, a fourth spacer element P4, and a fifth lens E5.

[0162] like Figure 21 As shown, the object-side surface of the first lens is S1, the image-side surface of the first lens is S2, the object-side surface of the second lens is S3, the image-side surface of the second lens is S4, the object-side surface of the third lens is S5, the image-side surface of the third lens is S6, the object-side surface of the fourth lens is S7, the image-side surface of the fourth lens is S8, the object-side surface of the fifth lens is S9, and the image-side surface of the fifth lens is S10.

[0163] Table 7 shows the basic structural parameters of the imaging system components in Embodiment 7, where the units for radius of curvature, thickness / distance, and effective focal length are all millimeters (mm).

[0164] Face number Surface type radius of curvature thickness Refractive index Abbe number Conic coefficient OBJ spherical endless 380.0000 STO spherical endless -0.0983 S1 aspherical 1.6760 0.4197 1.55 55.9 -0.5889 S2 aspherical 5.5234 0.2307 -85.5059 S3 aspherical 26.1514 0.3784 1.55 55.9 0.0000 S4 aspherical -3.4999 0.2393 12.7401 S5 aspherical -0.9079 0.2406 1.68 19.2 -0.8913 S6 aspherical -1.6520 0.0551 -1.8143 S7 aspherical -37.1968 0.3640 1.55 55.9 0.0000 S8 aspherical -1.4294 0.0997 -6.8654 S9 aspherical 0.9812 0.4459 1.55 55.9 -1.0612 S10 aspherical 0.7075 0.3702 -1.2637 S11 spherical endless 0.2100 1.52 64.2 S12 spherical endless 0.5400 S13 spherical endless

[0165] Table 7

[0166] Table 7 also shows the object side surface S11, the image side surface S12, and the imaging surface S13 of the filter.

[0167] In this embodiment, the object-side surface and image-side surface of the first to fifth lenses are both aspherical, and the surface shape of each aspherical lens can be defined by, but is not limited to, the formula (1) in Embodiment 1.

[0168] Table 8 gives the higher-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28, and A30 that can be used for each aspherical mirror in this embodiment.

[0169] Face number A4 A6 A8 A10 A12 A14 A16 S1 -8.7428E-03 -1.5712E-03 -2.3638E-04 -2.2355E-05 3.4805E-06 4.1044E-06 -2.0328E-06 S2 -3.8161E-02 -5.8437E-03 1.6025E-05 2.3914E-04 1.6740E-04 6.7616E-05 3.3544E-05 S3 -9.3934E-02 -1.1050E-02 -2.7050E-04 1.0303E-03 2.9652E-04 1.4154E-04 -2.4995E-05 S4 -1.4249E-01 -1.5960E-03 6.6193E-03 3.0720E-03 2.9834E-04 6.7123E-05 -4.9560E-06 S5 -4.3151E-02 3.9936E-02 -3.0503E-03 2.0412E-04 -1.2248E-03 3.0619E-04 -8.2913E-05 S6 -1.0364E-01 5.6998E-02 -2.2869E-03 -1.5242E-03 5.0379E-04 3.9219E-04 -3.6402E-04 S7 1.2752E-01 -1.4940E-01 2.9248E-02 -6.7556E-03 3.2151E-03 -1.7248E-04 5.7221E-04 S8 3.2054E-01 -1.7765E-01 5.6237E-02 -7.2436E-03 -4.1046E-03 4.6359E-03 -2.6099E-03 S9 -2.0227E+00 4.4356E-01 -1.1808E-01 1.4621E-02 -2.9862E-03 6.1246E-03 -4.5663E-03 S10 -2.8781E+00 6.3693E-01 -2.6009E-01 6.7442E-02 -3.9932E-02 1.6875E-02 -7.6321E-03 Face number A18 A20 A22 A24 A26 A28 A30 S1 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S2 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S3 1.2990E-05 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S4 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S5 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S6 -1.8787E-04 1.4653E-05 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S7 -2.6086E-04 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S8 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S9 4.3892E-04 -1.8632E-04 -6.1194E-04 -6.0873E-04 0.0000E+00 0.0000E+00 0.0000E+00 S10 4.0005E-03 -1.7053E-03 8.8551E-04 -1.4376E-03 -7.6208E-04 -5.8086E-04 0.0000E+00

[0170] Table 8

[0171] Figure 22 The on-axis chromatic aberration curve of the imaging system component of Embodiment 7 is shown, which represents the deflection of the focal point after light of different wavelengths passes through the imaging system component. Figure 23 The astigmatism curves of the imaging system components of Embodiment 7 are shown, representing the meridional image plane curvature and the sagittal image plane curvature. Figure 24 The distortion curves of the imaging system components of Embodiment 7 are shown, representing the distortion magnitude values ​​corresponding to different field of view angles. Figure 25 The magnification chromatic aberration curve of the imaging system component of Embodiment 7 is shown, which represents the deviation of light at different image heights on the imaging surface after passing through the imaging system component.

[0172] according to Figures 22 to 25 It can be seen that the imaging system components given in Example 7 can achieve good imaging quality.

[0173] Example 8

[0174] The difference from Embodiment 7 is that the parameters of the lens barrel P0 and the spacer element are different.

[0175] like Figure 26 The image system components of Embodiment 8 of this application are described below. For the sake of brevity, descriptions similar to those in Embodiment 7 are omitted.

[0176] In Embodiment 8 and Embodiment 7, the parameters such as the radius of curvature, center thickness, and spacing between the first to fifth lenses of the imaging system assembly are the same, as shown in Tables 7 and 8. However, at least some parameters such as the lens barrel P0, the thickness of the spacer element, the inner diameter and outer diameter of the spacer element, and the distance between the spacer elements are different. Therefore, the imaging quality of the imaging system assembly in this embodiment is as follows: Figures 22 to 25 As shown.

[0177] In summary, Examples 1 to 8 respectively satisfy the relationships shown in Table 9.

[0178] Conditional / Example 1 2 3 4 5 6 7 8 L / ImgH 1.16 1.21 1.09 1.13 1.07 1.11 1.07 1.09 f / R3+f / R4 -0.58 -0.58 -0.45 -0.45 -0.29 -0.29 -0.57 -0.57 f2*(D2s-d2s) / (R4*T23) -6.79 -8.57 -10.42 -11.68 -6.31 -5.50 -7.53 -9.04 EP23 / CT3+EP34 / CT4 2.85 2.34 2.24 2.28 2.57 2.07 2.53 2.59 f4*N4 / (D4s-D3m) 1.01 1.10 1.19 1.19 1.19 0.90 2.02 1.99 CP3 / T34 1.10 9.23 6.86 6.27 13.98 13.98 5.93 5.38 f3*N3 / EP23 -9.61 -11.74 -12.78 -12.49 -17.36 -17.52 -16.98 -17.23 f4*D4s / R7(mm) -2.10 -2.24 0.13 0.14 2.07 2.08 -0.38 -0.41 CP4 * T45 (mm 2 )]]> 0.005 0.005 0.019 0.021 0.002 0.019 0.002 0.003 f1*EP01 / (CT1*R2) 0.879 1.091 1.306 1.527 1.352 1.625 1.090 1.169 f45 / d4m 0.83 0.81 0.70 0.65 0.63 0.52 0.82 0.75 d0s / DT11+d0m / DT51 5.98 6.69 5.95 6.59 5.32 5.96 6.10 6.28 D1m / R3 0.13 0.11 0.22 0.24 0.28 0.32 0.09 0.07 d3s / R6 -1.15 -1.31 -1.12 -1.26 -1.24 -1.24 -1.30 -1.35

[0179] Table 9

[0180] Table 10 shows some structural parameters of the imaging system components of Examples 1 to 8.

[0181]

[0182]

[0183] Table 10

[0184] Table 11 shows the effective focal lengths of the first to fifth lenses of the imaging system components in Embodiments 1 to 8.

[0185] Example parameters 1 2 3 4 5 6 7 8 f(mm) 2.45 2.45 2.14 2.14 1.84 1.84 2.32 2.32 f1(mm) 4.06 4.06 4.37 4.37 4.64 4.64 4.25 4.25 f2 (mm) 5.42 5.42 4.82 4.82 4.43 4.43 5.68 5.68 f3 (mm) -3.26 -3.26 -3.25 -3.25 -3.38 -3.38 -3.42 -3.42 f4 (mm) 3.06 3.06 2.47 2.47 2.27 2.27 2.71 2.71 f5 (mm) -11.16 -11.16 -10.64 -10.64 -35.13 -35.13 -10.94 -10.94 ImgH(mm) 2.67 2.67 2.67 2.67 2.48 2.48 2.80 2.80 DT11 (mm) 0.59 0.59 0.63 0.63 0.66 0.66 0.62 0.62 DT51 (mm) 1.74 1.74 1.72 1.72 1.74 1.74 1.83 1.83

[0186] Table 11

[0187] This application also provides an imaging device, wherein the electronic photosensitive element can be a photocoupled device (CCD) or a complementary metal oxide semiconductor device (CMOS). The imaging device can be a stand-alone imaging device such as a digital camera, or an imaging module integrated into a mobile electronic device such as a mobile phone. The imaging device is equipped with the imaging system components described above.

[0188] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0189] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0190] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0191] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An imaging system component, characterized in that, The imaging system assembly comprises five lenses with optical power, including: The imaging system component comprises a plurality of lenses, wherein the plurality of lenses sequentially from the object side to the image side include a first lens to a fifth lens. The first lens has positive optical power, the object side of the first lens is convex, and the image side of the first lens is concave. The second lens has positive optical power, the object side of the second lens is convex, and the image side of the second lens is convex. The third lens has negative optical power, the object side of the third lens is concave, and the image side of the third lens is convex. The fourth lens has positive optical power, and the image side of the fourth lens is convex. The fifth lens has negative optical power, the object side of the fifth lens is convex, and the image side of the fifth lens is concave. A plurality of spacer elements, wherein the spacer element located on the image side of the second lens and in at least partial contact with the image side surface of the second lens is the second spacer element, and the spacer element located on the image side of the third lens and in at least partial contact with the image side surface of the third lens is the third spacer element; A lens barrel for housing multiple lenses and multiple spacer elements; Wherein, the maximum height L of the lens barrel and half the diagonal length ImgH of the effective pixel area on the imaging surface of the imaging system component satisfy the following condition: 1.07≤L / ImgH≤1.21; The effective focal length f of the imaging system component, the radius of curvature R3 of the object side of the second lens, and the radius of curvature R4 of the image side of the second lens satisfy the following condition: -0.58≤f / R3+f / R4≤-0.29; The effective focal length f2 of the second lens, the outer diameter D2s of the object side of the second spacer element, the inner diameter d2s of the object side of the second spacer element, the radius of curvature R3 of the object side of the second lens, and the air gap T23 between the second lens and the third lens on the optical axis of the imaging system assembly satisfy: 1.0 < f2*(D2s-d2s) / (R3*T23) < 3.5; The inner diameter d3s of the object side of the third spacer element and the radius of curvature R6 of the image side of the third lens satisfy the following condition: -1.35≤d3s / R6≤-1.

12.

2. The imaging system component according to claim 1, characterized in that, The fourth spacer is the one located on the image side of the fourth lens and in at least partial contact with the image side surface of the fourth lens. The maximum thickness CP3 of the third spacer, the air gap T34 between the third lens and the fourth lens on the optical axis satisfy the following: 1.10≤CP3 / T34≤13.

98. The effective focal length f4 of the fourth lens, the refractive index N4 of the fourth lens, the outer diameter D4s of the object side surface of the fourth spacer, and the outer diameter D3m of the image side surface of the third spacer satisfy the following: 0.90≤f4*N4 / (D4s-D3m)≤2.

02.

3. The imaging system component according to claim 1, characterized in that, The effective focal length f3 of the third lens, the refractive index N3 of the third lens, and the distance EP23 between the second spacer element and the third spacer element along the optical axis satisfy the following condition: -17.52≤f3*N3 / EP23≤-9.

61.

4. The imaging system component according to claim 1, characterized in that, The first spacer element is located on the image side of the first lens and is at least partially in contact with the image side surface of the first lens. The effective focal length f1 of the first lens, the distance EP01 between the object side end face of the lens barrel and the first spacer element along the optical axis, the center thickness CT1 of the first lens in the optical axis, and the radius of curvature R2 of the image side surface of the first lens satisfy the following: 0.879≤f1*EP01 / (CT1*R2)≤1.

625.

5. The imaging system component according to claim 1, characterized in that, The fourth spacer element is located on the image side of the fourth lens and is at least partially in contact with the image side surface of the fourth lens. The maximum thickness CP4 of the fourth spacer element and the air gap T45 between the fourth lens and the fifth lens on the optical axis satisfy the following condition: 0.002 mm. 2 ≤CP4*T45≤0.021 mm 2 .

6. The imaging system component according to claim 1, characterized in that, The fourth spacer is the one located on the image side of the fourth lens and in at least partial contact with the image side surface of the fourth lens. The distance EP23 between the second spacer and the third spacer along the optical axis, the center thickness CT3 of the third lens on the optical axis, the distance EP34 between the third spacer and the fourth spacer along the optical axis, and the center thickness CT4 of the fourth lens on the optical axis satisfy the following: 2.07≤EP23 / CT3+EP34 / CT4≤2.

85.

7. The imaging system component according to claim 1, characterized in that, The fourth spacer is located on the image side of the fourth lens and is at least partially in contact with the image side surface of the fourth lens. The combined focal length f45 of the fourth lens and the fifth lens and the inner diameter d4m of the image side surface of the fourth spacer satisfy the following: 0.52≤f45 / d4m≤0.

83.

8. The imaging system component according to claim 1, characterized in that, The fourth spacer element is located on the image side of the fourth lens and is at least partially in contact with the image side surface of the fourth lens. The effective focal length f4 of the fourth lens, the outer diameter D4s of the object side surface of the fourth spacer element, and the radius of curvature R7 of the object side surface of the fourth lens satisfy the following: -2.24mm≤f4*D4s / R7≤2.08mm.

9. The imaging system component according to claim 1, characterized in that, The first spacer element is located on the image side of the first lens and is at least partially in contact with the image side surface of the first lens. The outer diameter D1m of the image side surface of the first spacer element and the radius of curvature R3 of the object side surface of the second lens satisfy the following condition: 0.07≤D1m / R3≤0.

32.

10. The imaging system component according to any one of claims 1 to 9, characterized in that, The inner diameter d0s of the object-side end face of the lens barrel, the maximum effective radius DT11 of the object-side surface of the first lens, the inner diameter d0m of the image-side end face of the lens barrel, and the maximum effective radius DT51 of the object-side surface of the fifth lens satisfy the following condition: 5.32≤d0s / DT11+d0m / DT51≤6.69.

Images