Camera lens

Abstract

The application discloses a camera lens, which comprises an optical lens group, a plurality of spacers and a lens barrel for accommodating the optical lens group and the plurality of spacers, the optical lens group comprises, in sequence from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens and a fifth lens with respective refractive powers, wherein the first lens has a positive refractive power; the second lens has a meniscus shape; the fourth lens has a positive refractive power; the fifth lens has a positive refractive power and a meniscus shape, the convex direction of the meniscus shape of the second lens and the fifth lens is opposite, the plurality of spacers comprises at least one spacer between any two adjacent lenses, the at least one spacer is in contact with at least a part of the adjacent lenses; and the distance TD of the object side surface of the first lens to the image side surface of the fifth lens on the optical axis, the aperture value Fno of the optical lens group, the inner diameter d0s of the object side end of the lens barrel and the inner diameter d0m of the image side end of the lens barrel satisfy the following relationship: 7 < TD / (d0s-d0m)*Fno < 11.

Description

Technical Field

[0001] This application relates to the field of optical components, and more specifically, to a camera lens. Background Technology

[0002] In recent years, people have raised various demands for mobile phone camera lenses, including high performance and miniaturization, and telephoto lenses are increasingly being used in mobile phone camera systems. The increased use of telephoto lenses has led to an increase in the size of lenses and camera modules. Therefore, while continuously expanding the advantages of using telephoto lenses, people are also demanding miniaturization, ultra-thinning, and high performance from telephoto lenses and their supporting components (such as lens barrels).

[0003] Camera lenses typically include multiple lenses and spacers for coupling adjacent lenses, and large differences in lens spacing often cause assembly stability problems. Furthermore, as the image plane increases, stray light easily appears at the lens edges. These stray light and assembly stability issues severely affect the image quality of camera lenses. Therefore, how to rationally set the optical parameters of the camera lens and lens barrel, as well as the structure and size of the lenses and spacers, to improve stray light and optimize lens assembly stability is a pressing problem to be solved in this field.

[0004] It should be understood that the background section is intended to provide some useful background for understanding the technology; however, this content is not necessarily what was known or understood by a person skilled in the art prior to the filing date of this application. Summary of the Invention

[0005] This application provides a camera lens comprising an optical lens group, a plurality of spacers, and a lens barrel for accommodating the optical lens group and the plurality of spacers. The optical lens group, along the optical axis from the object side to the image side, sequentially comprises a first lens, a second lens, a third lens, a fourth lens, and a fifth lens, each having optical power. The first lens has positive optical power; the second lens has a meniscus shape; the fourth lens has positive optical power; and the fifth lens has both positive optical power and a meniscus shape, with the convex direction of the meniscus shapes of the second and fifth lenses opposite. The plurality of spacers includes at least one spacer located between any two adjacent lenses, and the at least one spacer contacts at least a portion of the adjacent lens. Furthermore, the distance TD between the object side of the first lens and the image side of the fifth lens on the optical axis, the aperture value Fno of the optical lens group, and the inner diameter d0s of the object side end of the lens barrel and the inner diameter d0m of the image side end of the lens barrel satisfy the following condition: 7 <TD / (d0s-d0m)*Fno<11。

[0006] In one embodiment of this application, the plurality of spacers includes a first spacer and a second spacer located between the first lens and the second lens, wherein the second spacer contacts at least a portion of the object-side surface of the first spacer and the second lens, respectively.

[0007] In one embodiment of this application, the third lens has negative optical power, and at least one of its object side and image side is concave.

[0008] In one embodiment of this application, the inner diameter d1s of the object side of the first spacer, the outer diameter D1s of the object side of the first spacer, the inner diameter d2s of the object side of the second spacer, the outer diameter D2s of the object side of the second spacer, the effective focal length f1 of the first lens, and half of the maximum field of view (Semi-FOV) of the optical lens group satisfy the following: 2 < (D2s - d2s) / (D1s - d1s) + (f1 * tan(Semi-FOV)) < 10.

[0009] In one embodiment of this application, the inner diameter d1s of the object side of the first spacer, the outer diameter D1s of the object side of the first spacer, the inner diameter d1m of the image side of the first spacer, the outer diameter D1m of the image side of the first spacer, the radius of curvature R2 of the image side of the first lens, and the radius of curvature R3 of the object side of the second lens satisfy the following: |(R2 / R3)+(d1s / d1m)+(D1s / D1m)|<20.

[0010] In one embodiment of this application, the inner diameter d1s of the object side of the first spacer, the outer diameter D1s of the object side of the first spacer, the inner diameter d1m of the image side of the first spacer, the outer diameter D1m of the image side of the first spacer, the radius of curvature R2 of the image side of the first lens, and the radius of curvature R3 of the object side of the second lens satisfy the following: |(R2+d1s+D1s) / (R3+d1m+D1m)|<4.

[0011] In one embodiment of this application, the plurality of spacers includes a third spacer located between the second lens and the third lens, wherein the object-side surface of the third spacer contacts at least a portion of the image-side surface of the second lens, and the image-side surface of the third spacer contacts at least a portion of the object-side surface of the third lens; and the camera lens satisfies: 25 < (d2s + d3s) / (R3 + R4) * V2 < 60, where d2s is the inner diameter of the object-side surface of the second spacer, d3s is the inner diameter of the object-side surface of the third spacer, R3 is the radius of curvature of the object-side surface of the second lens, R4 is the radius of curvature of the image-side surface of the second lens, and V2 is the Abbe number of the second lens.

[0012] In an embodiment of the present application, the plurality of spacers include a third spacer located between the second lens and the third lens, wherein the object side surface of the third spacer contacts at least a part of the image side surface of the second lens, and the image side surface of the third spacer contacts at least a part of the object side surface of the third lens; and the imaging lens satisfies: 1 < D3s * tan(Semi-FOV) / T23 < 5, where D3s is the outer diameter of the object side surface of the third spacer, Semi-FOV is half of the maximum field angle of the optical lens group, and T23 is the distance between the second lens and the third lens on the optical axis.

[0013] In an embodiment of the present application, the plurality of spacers include a third spacer located between the second lens and the third lens, a fourth spacer located between the third lens and the fourth lens, and a fifth spacer located between the fourth lens and the fifth lens, and the imaging lens satisfies: EP23 / CT2 < 1.5 and 1 < EP34 / CT3 < 3 and EP45 / CT4 < 1.5, where EP23 is the distance between the second spacer and the third spacer on the optical axis, CT2 is the central thickness of the second lens on the optical axis, EP34 is the distance between the third spacer and the fourth spacer on the optical axis, CT3 is the central thickness of the third lens on the optical axis, EP45 is the distance between the fourth spacer and the fifth spacer on the optical axis, and CT4 is the central thickness of the fourth lens on the optical axis.

[0014] In an embodiment of the present application, the plurality of spacers include a fourth spacer located between the third lens and the fourth lens and a fifth spacer located between the fourth lens and the fifth lens, wherein the following relationship is satisfied among the distance EP45 between the fourth spacer and the fifth spacer on the optical axis, the thickness CP4 of the fourth spacer, the central thickness CT4 of the fourth lens on the optical axis, and the refractive index N4 of the fourth lens: 1 < (EP45 + CP4) / CT4 * N4 < 5.

[0015] In an embodiment of the present application, the plurality of spacers include a third spacer located between the second lens and the third lens and a fourth spacer located between the third lens and the fourth lens, wherein the following relationship is satisfied among the distance EP34 between the third spacer and the fourth spacer on the optical axis, the thickness CP4 of the fourth spacer, the central thickness CT3 of the third lens on the optical axis, and the distance T23 between the second lens and the third lens on the optical axis: 0 < (EP34 + CP4) / (CT3 + T23) < 2.

[0016] In one embodiment of this application, the first lens is made of glass, and any one of the second to fifth lenses is made of plastic.

[0017] The camera lens of this application includes an optical lens group and a lens for accommodating the optical lens group. The inner diameter of both ends of the lens is controlled by adjusting the difference between the inner diameter of the object-side end and the image-side end of the lens barrel, thereby reducing the overall size of the lens. In addition, by adjusting the system length of the optical lens group and the relationship between the aperture value and the inner diameter of both ends of the lens barrel, the lens has a smaller system length while ensuring imaging effect, thus making the camera lens both miniaturized and ultra-thin. Furthermore, by setting at least one spacer between adjacent lenses, the step difference between lenses is reduced, which helps to improve the assembly stability of the lens. At the same time, the spacer can also be used to intercept excess reflected light, thereby reducing stray light. Attached Figure Description

[0018] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0019] Figure 1 A schematic diagram showing the parameter annotations of a camera lens according to this application is provided;

[0020] Figure 2 A schematic diagram of the optical lens assembly according to Embodiment 1 of this application is shown;

[0021] Figure 3 The present application illustrates an embodiment 1 including, as shown in the example below. Figure 2 A cross-sectional schematic diagram of a camera lens with an optical lens group shown;

[0022] Figure 4 The present application illustrates an embodiment 1 including, as shown in the example below. Figure 2 A cross-sectional schematic diagram of another camera lens with the optical lens group shown.

[0023] Figure 5 The present application illustrates an embodiment 1 including, as shown in the example below. Figure 2 A cross-sectional schematic diagram of another type of camera lens with an optical lens group shown.

[0024] Figures 6A to 6C The astigmatism curve, distortion curve, and magnification chromatic aberration curve of the optical lens group according to Embodiment 2 of this application are shown respectively.

[0025] Figure 7 A schematic diagram of the optical lens assembly according to Embodiment 2 of this application is shown;

[0026] Figure 8 The present application illustrates an embodiment 2 including, as shown in the example below. Figure 7 A cross-sectional schematic diagram of a camera lens with an optical lens group shown;

[0027] Figure 9 The present application illustrates an embodiment 2 including, as shown in the example below. Figure 7 A cross-sectional schematic diagram of another camera lens with the optical lens group shown.

[0028] Figure 10 The present application illustrates an embodiment 2 including, as shown in the example below. Figure 7 A cross-sectional schematic diagram of another type of camera lens with an optical lens group shown.

[0029] Figures 11A to 11C The astigmatism curve, distortion curve, and magnification chromatic aberration curve of the optical lens group according to Embodiment 2 of this application are shown respectively.

[0030] Figure 12 A schematic diagram of the optical lens assembly according to Embodiment 3 of this application is shown;

[0031] Figure 13 The present application illustrates an embodiment 3 including, as shown in the example below. Figure 12 A cross-sectional schematic diagram of a camera lens with an optical lens group shown;

[0032] Figure 14 The present application illustrates an embodiment 3 including, as shown in the example below. Figure 12 A cross-sectional schematic diagram of another camera lens with the optical lens group shown.

[0033] Figure 15 The present application illustrates an embodiment 3 including, as shown in the example below. Figure 12 A cross-sectional schematic diagram of another type of camera lens with an optical lens group shown.

[0034] Figures 16A to 16C The astigmatism curve, distortion curve, and magnification chromatic aberration curve of the optical lens group according to Embodiment 3 of this application are shown respectively. Detailed Implementation

[0035] To better understand this application, various aspects of this application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely illustrative of exemplary embodiments of this application and are not intended to limit the scope of this application in any way. Throughout the specification, the same reference numerals refer to the same elements. The expression "and / or" includes any and all combinations of one or more of the associated listed items.

[0036] 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 strictly to scale.

[0037] In this article, the paraxial region refers to the region near the optical axis. If the lens surface is convex and the location of the 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 the concaveness is not defined, it means that the lens surface is concave at least in the paraxial region. The surface of each lens closest to the subject is called the object-side surface of the lens, and the surface of each lens closest to the imaging plane is called the image-side surface of the lens.

[0038] 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.

[0039] It should also be understood that the terms "comprising," "including," "having," "containing," and / or "comprising," when used in this specification, indicate the presence of the stated features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof. Furthermore, when expressions such as "at least one of..." appear after a list of listed features, they modify the entire list of features, not individual elements in the list. Additionally, when describing embodiments of this application, the word "may" is used to mean "one or more embodiments of this application." And the term "exemplary" is intended to refer to an example or illustration.

[0040] Unless otherwise specified, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. It should also be understood that terms (e.g., those defined in common dictionaries) shall be interpreted as having the meaning consistent with their meaning in the context of the relevant art and shall not be interpreted in an idealized or overly formalized sense, unless expressly so specified herein.

[0041] It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other. The following embodiments only illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. For example, the optical lens groups, lens barrel structures, and spacers in the various embodiments of this application can be arbitrarily combined, and it is not limited to the optical lens group in one embodiment being combined only with the lens barrel structure, spacers, etc. of that embodiment. The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0042] The features, principles and other aspects of this application are described in detail below.

[0043] A camera lens according to an exemplary embodiment of this application may include an optical lens group and a lens barrel for accommodating the optical lens group, wherein the optical lens group includes, in sequence along the optical axis from the object side to the image side, a first lens, a second lens, a third lens, a fourth lens, and a fifth lens, each having an optical power.

[0044] In an exemplary embodiment, the first lens may have positive optical power, its object-side surface may be convex, and its image-side surface may be convex or concave. The second lens may have positive or negative optical power, its object-side surface may be convex, and its image-side surface may be concave, thereby forming a meniscus shape convex towards the object side. The third lens may have negative optical power, its object-side surface may be concave, and its image-side surface may be concave. The fourth lens may have positive optical power, its object-side surface may be convex, and its image-side surface may be convex or concave. The fifth lens may have positive optical power, its object-side surface may be concave, and its image-side surface may be convex, thereby forming a meniscus shape convex towards the image side. By reasonably allocating the optical power of each lens in the camera lens, the camera lens can meet the requirements of telephoto. By reasonably allocating the surface shape of each lens, the path of the light path in the optical system can be adjusted, the manufacturability of lens forming can be increased, and the resolving power of the camera lens can be effectively improved. The reasonable allocation of the optical power and surface shape can effectively improve the imaging effect.

[0045] In an exemplary embodiment, the camera lens further includes a plurality of spacers, including at least one spacer located between any two adjacent lenses, the at least one spacer contacting at least a portion of a neighboring lens. Optionally, the at least one spacer may contact a non-effective optical portion (e.g., an edge region of the lens) of a neighboring lens. Exemplarily, the plurality of spacers may include a first spacer and a second spacer located between a first lens and a second lens, a third spacer located between a second lens and a third lens, a fourth spacer located between a third lens and a fourth lens, and a fifth spacer located between a fourth lens and a fifth lens. Optionally, at least a portion of the first spacer and at least a portion of the second spacer are in contact, for example, at least a portion of the image-side surface of the first spacer is in contact with at least a portion of the object-side surface of the second spacer. By controlling the contact between at least a portion of the first spacer and at least a portion of the second spacer, electrostatic repulsion of the PC components during assembly can be reduced, ensuring stability during lens assembly and improving lens manufacturing yield. By setting multiple spacers, it is helpful to intercept excess reflected light paths, improve the image clarity of the camera lens, reduce stray light and ghosting, and ensure that multiple spacers are assembled with the lens barrel and lens in sequence, and ensure assembly stability.

[0046] In an exemplary embodiment, the image-side surface of the first lens may contact at least a portion of the object-side surface of the first spacer, the object-side surface of the second lens may contact at least a portion of the image-side surface of the second spacer, and the image-side surface of the second lens may contact at least a portion of the object-side surface of the third spacer. By providing a second spacer on the object-side surface of the second lens and a third spacer on the image-side surface of the second lens, the range of incident light can be reasonably limited, eliminating light rays with poor edge quality, reducing off-axis aberrations, and simultaneously blocking stray light paths generated by reflection from the second lens, thereby improving the imaging quality of the optical system. Furthermore, by reasonably controlling the contact between at least a portion of the convex object-side surface of the second lens and the image-side surface of the second spacer, the path of the light path in the optical system can be reasonably limited, increasing the manufacturability of the lens forming and effectively improving the resolving power of the camera lens. Optionally, the object side of the third lens may contact at least a portion of the image side of the third spacer, the image side of the third lens may contact at least a portion of the object side of the fourth spacer, the object side of the fourth lens may contact at least a portion of the image side of the fourth spacer, the object side of the fourth lens may contact at least a portion of the object side of the fifth spacer, and the object side of the fifth lens may contact at least a portion of the image side of the fifth spacer.

[0047] In an exemplary embodiment, the camera lens further includes a prism disposed within the lens barrel. The prism may be disposed along the optical axis on the object side surface of the first lens. The prism may have two orthogonal optical axes, namely an incident optical axis perpendicular to the incident surface of the prism and an exit optical axis perpendicular to the exit surface of the prism. Light from an object may sequentially pass through the incident surface of the prism along the incident optical axis and be reflected and deflected by 90° via the reflecting surface of the prism and then exit in a direction perpendicular to the exit surface. The exit optical axis of the prism and the optical axis of the optical lens group are located on the same straight line. The light exiting through the exit surface of the prism may sequentially pass through the second lens, the third lens, the fourth lens, and the fifth lens and finally be projected onto the imaging surface. The above optical axes together may constitute the principal optical axis of the periscope telephoto lens. By changing the reflection direction of the light through the prism, the telephoto lens can be placed flat (inverted relative to the vertical placement), enabling a periscope structure, thereby reducing the thickness of the device equipped with the telephoto lens.

[0048] In an exemplary embodiment, referring to Figure 1 the dimensional markings, the distance TD on the optical axis from the object side surface of the first lens to the image side surface of the fifth lens, the aperture value Fno of the optical lens group, and the inner diameter d0s of the object side end of the lens barrel and the inner diameter d0m of the image side end of the lens barrel satisfy: 7 < TD / (d0s - d0m) * Fno < 11. By adjusting the difference in the inner diameters of the object side end and the image side end of the lens barrel to control the inner diameters at both ends of the lens, the overall specifications of the lens are reduced. Additionally, by adjusting the system length of the optical lens group and the relationship between the aperture value and the inner diameters at both ends of the lens barrel, the lens has a smaller system length while ensuring the imaging effect, thereby making the camera lens feature miniaturization and ultra-thinness. In some examples, the object side end and the image side end of the lens barrel may have an inclined chamfered surface structure as shown in Figure 1 . Thus, the inner diameter d0s of the object side end and the inner diameter d0m of the image side end of the lens barrel can be understood as the minimum inner diameters of the object side end and the image side end of the lens barrel. It can be understood that, in order to make the structure and markings of the drawings clearer, Figure 1 the markings of the dimensions of each component in

[0049] In an exemplary embodiment, referring to Figure 1 the dimensional markings,The dimensions of the first spacer, including its inner diameter d1s, outer diameter D1s, inner diameter d2s, outer diameter D2s, effective focal length f1 of the first lens, and half of the maximum field of view (Semi-FOV) of the optical lens group, satisfy the following condition: 2 < (D2s - d2s) / (D1s - d1s) + (f1 * tan(Semi-FOV)) < 10. By reasonably controlling the inner diameter of the first spacer, the deformation caused by the assembly stress can be reduced, thereby effectively reducing the field curvature sensitivity of the sensitive lens. By satisfying the above condition, the inner diameter of the second spacer can be reasonably controlled, effectively ensuring the relative illumination of the outer field of view and reasonably limiting the range of incident light, eliminating light rays with poor edge quality, and improving the image quality of the lens.

[0050] In an exemplary implementation, reference Figure 1 The dimensions of the first spacer, including its inner diameter d1s on the object side, outer diameter D1s on the object side, inner diameter d1m on the image side, outer diameter D1m on the image side, radius of curvature R2 on the image side of the first lens, and radius of curvature R3 on the object side of the second lens, satisfy the following condition: |(R2 / R3)+(d1s / d1m)+(D1s / D1m)|<20. By controlling the curvature of the image side and object side of the first lens to match the inner and outer diameters of the first spacer, it helps to balance the aberrations of the system. The contact width between the image side and object side of the first spacer and the lens can limit the extra light generated by partial reflection of the lens mechanism. Satisfying the above condition range can optimize the assembly deformation of the first lens and make the second lens better support the front and rear, thereby improving the assembly yield of the entire lens and effectively reducing the manufacturing cost.

[0051] In an exemplary implementation, reference Figure 1 The dimensions of the first spacer are specified as follows: the inner diameter d1s of the object-side surface of the first spacer, the outer diameter D1s of the object-side surface of the first spacer, the inner diameter d1m of the image-side surface of the first spacer, the outer diameter D1m of the image-side surface of the first spacer, the radius of curvature R2 of the image-side surface of the first lens, and the radius of curvature R3 of the object-side surface of the second lens satisfy the following condition: |(R2+d1s+D1s) / (R3+d1m+D1m)|<4. By controlling the curvature of the image-side surface of the first lens and the object-side surface of the second lens to match the inner and outer diameters of the first spacer, stray light paths generated by reflections between the image-side of the first lens and the object-side of the second lens can be blocked. This ensures that the relative illumination field of view meets the assessment requirements while improving the imaging quality of the lens.

[0052] In an exemplary embodiment, the camera lens satisfies: 25 < (d2s + d3s) / (R3 + R4) * V2 < 60, see reference. Figure 1Dimension markings, where d2s is the inner diameter of the object side of the second spacer, d3s is the inner diameter of the object side of the third spacer, R3 is the radius of curvature of the object side of the second lens, R4 is the radius of curvature of the image side of the second lens, and V2 is the Abbe number of the second lens. By controlling the curvatures of the object side and the image side of the second lens to adapt to the inner diameter of the object side of the second spacer and the inner diameter of the object side of the third spacer, the optical path range passing through the second lens and incident on the third lens can be reasonably restricted, the light rays with poor edge quality can be eliminated, and the stability of the assembly and support of the second lens and the third lens can be effectively improved, the sensitivity of the assembly structure between the lenses can be reduced, and the imaging quality of the lens can be improved.

[0053] In an exemplary embodiment, the imaging lens satisfies: 1 < D3s * tan(Semi-FOV) / T23 < 5, refer to Figure 1 Dimension markings, where D3s is the outer diameter of the object side of the third spacer, Semi-FOV is half of the maximum field angle of the optical lens group, and T23 is the distance between the second lens and the third lens on the optical axis. By controlling this condition, the light path emission of the second lens mechanism part can be restricted, the stray light path generated by the lens mechanism part can be blocked, and the incident guarantee of the effective light path and the relative illuminance of the outer field of view can be improved; with the control of the gap ratio, the structural stability of the assembly of the second lens and the third lens can be improved, the sensitivity of the gap field curvature before and after the second lens and the third lens can be reduced, and the imaging quality of the lens can be improved.

[0054] In an exemplary embodiment, refer to Figure 1 [[ID=!]]Dimension markings, the distance EP23 between the second spacer and the third spacer on the optical axis and the central thickness CT2 of the second lens on the optical axis satisfy: 0 < EP23 / CT2 < 3. By controlling this condition, the distances between the lenses from the first lens to the third lens can be adjusted by adjusting the distance between the second spacer and the third spacer, so that the sensitivity of the field curvature can be reduced, and at the same time, the control of the thickness of the lens can be improved, which is beneficial to improving the formability of the lens. In addition, by further controlling the central thickness of the second lens to adjust its interval with the adjacent lens, the stability of the lens optical system can be ensured to obtain a good imaging effect. And, by controlling the distance between the second spacer and the third spacer and the thickness of the second lens as described above, the imaging lens is further miniaturized and ultrathin.

[0055] In an exemplary embodiment, the plurality of spacers include a third spacer located between the second lens and the third lens, a fourth spacer located between the third lens and the fourth lens, and a fifth spacer located between the fourth lens and the fifth lens, refer to Figure 1For the dimension marking, the camera lens satisfies: EP23 / CT2 < 1.5 and 1 < EP34 / CT3 < 3 and EP45 / CT4 < 1.5, where EP23 is the distance between the second spacer and the third spacer on the optical axis, CT2 is the central thickness of the second lens on the optical axis, EP34 is the distance between the third spacer and the fourth spacer on the optical axis, CT3 is the central thickness of the third lens on the optical axis, EP45 is the distance between the fourth spacer and the fifth spacer on the optical axis, and CT4 is the central thickness of the fourth lens on the optical axis. By controlling this condition, the distance between each lens from the first lens to the fifth lens can be adjusted by adjusting the distance between any two adjacent spacers from the second spacer to the fifth spacer, so that the sensitivity of the field curvature can be reduced, and at the same time, the control of the lens thickness can be improved, which is beneficial to improving the formability of the lens; in addition, by further controlling the central thickness of each lens from the second lens to the fourth lens to adjust its distance from the adjacent lens, the stability of the lens can be ensured to obtain a good imaging effect. Moreover, by controlling the distance between the above spacers and the central thickness of each lens from the second lens to the fourth lens, the camera lens is further miniaturized and ultrathin.

[0056] In an exemplary embodiment, referring to Figure 1 For the dimension marking, the distance EP34 between the third spacer and the fourth spacer on the optical axis, the thickness CP4 of the fourth spacer, the central thickness CT3 of the third lens on the optical axis, and the distance T23 between the second lens and the third lens on the optical axis satisfy: 0 < (EP34 + CP4) / (CT3 + T23) < 2. By controlling this condition, the structural stability of the fifth lens can be enhanced, and at the same time, the force conduction during the assembly process is uniform, and the change amount of the central force of the second lens and the third lens is reduced. And it can reasonably distribute the positions of the second lens and the third lens in the optical system, reduce the sensitivity of the gap field curvature before and after the second lens and the third lens, which is beneficial to making the optical system obtain a good imaging effect.

[0057] In an exemplary embodiment, the material of the first lens is glass, and the material of any one of the second lens to the fifth lens is plastic. Selecting glass material for the first lens makes the first lens have a high Abbe number and a high refractive index, which can reduce the size of the optical lens group; selecting plastic material for any one of the second lens to the fifth lens is beneficial to saving the cost of the optical lens group, thereby reducing the cost of the imaging lens, and is beneficial to reducing the processing difficulty of the lens while obtaining high imaging quality.

[0058] In an exemplary embodiment, the optical lens group according to the present application may further include a filter for correcting color deviation and / or a protective glass for protecting the photosensitive element located on the imaging surface.

[0059] The optical lens group according to the above embodiments of this application can employ multiple lenses, such as the five lenses mentioned above. By rationally allocating the optical power, surface shape, center thickness of each lens, and on-axis spacing between each lens, the low-order aberrations of the camera lens can be effectively balanced and controlled, while reducing its tolerance sensitivity and maintaining the miniaturization of the camera lens.

[0060] In embodiments of this application, at least one of the mirror surfaces of the first to fifth lenses is an aspherical mirror surface. An aspherical lens is characterized by a continuously changing curvature from the lens center to the lens periphery. Unlike a spherical lens, which has a constant curvature from the lens center to the lens periphery, an aspherical lens has better radius of curvature characteristics, offering advantages in improving distortion aberrations and astigmatism. By using an aspherical lens, aberrations occurring during imaging can be eliminated as much as possible, thereby improving image quality. Optionally, both the object-side and image-side surfaces of each of the first to fifth lenses are aspherical mirror surfaces.

[0061] However, those skilled in the art will understand that the number of lenses constituting the camera lens 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 are described as an example in the embodiment, the camera lens is not limited to including five lenses. If desired, the camera lens may also include other numbers of lenses.

[0062] The following describes in further detail, with reference to the accompanying drawings, specific embodiments of the camera lens applicable to the above-described embodiments.

[0063] Example 1

[0064] The following is for reference Figures 2 to 6C The optical lens group and camera lens according to Embodiment 1 of this application are described. Figure 2 A schematic diagram of the structure of an optical lens assembly according to Embodiment 1 of this application is shown. Figures 3 to 5 The embodiments of this application 1 are shown respectively, including as follows: Figure 2 The diagram shows a cross-sectional view of the three types of camera lenses with the shown optical lens group.

[0065] like Figure 2 As shown, the optical lens group includes, in sequence from the object side to the image side along the optical axis: first lens E1, aperture STO, second lens E2, third lens E3, fourth lens E4, fifth lens E5, filter E6, and imaging surface S13.

[0066] The first lens E1 has positive optical power, with its object-side surface S1 being convex and its image-side surface S2 being convex. The second lens E2 has positive optical power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has negative optical power, with its object-side surface S5 being concave and its image-side surface S6 being concave. The fourth lens E4 has positive optical power, with its object-side surface S7 being convex and its image-side surface S8 being concave. The fifth lens E5 has positive optical power, with its object-side surface S9 being concave and its image-side surface S10 being convex. The filter E6 has an object-side surface S11 and an image-side surface S12. Light from the object passes sequentially through surfaces S1 to S12 and is finally imaged onto the imaging surface S13.

[0067] Table 1 shows the basic parameters of the optical lens group of Example 1, where the units for radius of curvature, thickness / distance, and focal length are millimeters (mm).

[0068]

[0069]

[0070] Table 1

[0071] In this embodiment, the total effective focal length f of the optical lens group is 19.13 mm, the distance TTL between the object side surface S1 and the imaging surface S13 of the first lens E1 on the optical axis is 19.13 mm, half the diagonal length ImgH of the effective pixel area on the imaging surface S13 is 3.47 mm, the aperture value Fno of the optical lens group is 3.47, and half the maximum field of view Semi-FOV of the optical lens group is 9.94°.

[0072] In this embodiment, the aspherical surface shape x of the object-side and image-side surfaces of the lenses from the first lens E1 to the fifth lens E5 can be defined using, but is not limited to, the following aspherical formula:

[0073]

[0074] 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 (i.e., 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 and A11 that can be used for the aspherical mirrors S7 and S8 in Example 1.

[0075] Face number A4 A6 A8 A10 A11 S7 -1.9322E-03 -2.3392E-04 -4.2181E-05 8.1749E-06 -9.4232E-07 S8 -1.1810E-03 -3.4930E-04 1.4113E-05 -4.7625E-06 3.3447E-07

[0076] Table 2

[0077] like Figure 3As shown, the camera lens 110 includes the aforementioned optical lens group, a lens barrel 111 for housing the aforementioned optical lens group, and a plurality of spacers P1 to P5 located between any two adjacent lenses. Figure 4 As shown, the camera lens 120 includes the aforementioned optical lens group, a lens barrel 121 for housing the aforementioned optical lens group, and a plurality of spacers P1 to P5 located between any two adjacent lenses. Figure 5 As shown, the camera lens 130 includes the aforementioned optical lens group, a lens barrel 131 for housing the aforementioned optical lens group, and a plurality of spacers P1 to P5 located between any two adjacent lenses. In the case of... Figures 3 to 5 In the illustrated camera lens, the first spacer P1 and the second spacer P2 are located between the first lens E1 and the second lens E2. The first spacer P1 contacts at least a portion of the image-side surface S2 of the first lens E1, and the second spacer P2 contacts at least a portion of the object-side surface S3 of the second lens E2. The third spacer P3 is located between the second lens E2 and the third lens E3, the fourth spacer P4 is located between the third lens E3 and the fourth lens E4, and the fifth spacer P5 is located between the fourth lens E5 and the fifth lens E5. In this embodiment, the first spacer P1 and the fourth spacer P4 are spacers, and the second spacer P2, the third spacer P3, and the fifth spacer P5 are spacers. The first spacer P1 to the fifth spacer P5 can block excess external light from entering, allowing the lens to better contact the lens barrel and enhancing the structural stability of the camera lens.

[0078] Table 3 shows the basic parameters of the lens barrel and spacer of the three camera lenses in Example 1. The unit of each parameter in Table 3 is millimeters (mm).

[0079] Lens Number d1s d1m D1s D1m d2s D2s d3s D3s EP23 EP34 EP45 d0m d0s CP4 110 5.38 5.00 5.91 5.49 4.58 6.10 3.92 6.00 0.98 1.39 0.53 4.36 7.60 0.89 120 5.28 4.90 6.13 5.69 4.48 6.30 3.82 6.20 0.98 1.39 0.53 4.36 7.60 0.89 130 5.18 4.70 6.43 5.99 4.38 6.60 3.64 6.50 0.98 1.39 0.53 4.36 7.60 0.89

[0080] Table 3

[0081] Figure 6A The astigmatism curve of the camera lens of Embodiment 1 is shown, which represents the curvature of the meridional image plane and the curvature of the sagittal image plane. Figure 6B The distortion curve of the camera lens in Embodiment 1 is shown, which represents the distortion magnitude value corresponding to different image heights. Figure 6C The magnification chromatic aberration curve of the camera lens of Embodiment 1 is shown, which represents the deviation of different image heights on the imaging plane after light passes through the lens. According to Figures 6A to 6C It can be seen that the camera lens given in Example 1 can achieve good imaging quality.

[0082] Example 2

[0083] The following is for reference Figures 7 to 11C The optical lens assembly and camera lens according to Embodiment 2 of this application are described. Figure 7 A schematic diagram of the structure of an optical lens group according to Embodiment 2 of this application is shown. Figures 8 to 10 The embodiments of this application 2 are shown respectively, including as follows: Figure 7 The diagram shows a cross-sectional view of the three types of camera lenses with the shown optical lens group.

[0084] like Figure 7 As shown, the optical lens group includes, in sequence from the object side to the image side along the optical axis: first lens E1, aperture STO, second lens E2, third lens E3, fourth lens E4, fifth lens E5, filter E6, and imaging surface S13.

[0085] The first lens E1 has positive optical power, with its object-side surface S1 being convex and its image-side surface S2 being concave. The second lens E2 has negative optical power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has negative optical power, with its object-side surface S5 being concave and its image-side surface S6 being concave. The fourth lens E4 has positive optical power, with its object-side surface S7 being convex and its image-side surface S8 being concave. The fifth lens E5 has positive optical power, with its object-side surface S9 being concave and its image-side surface S10 being convex. The filter E6 has an object-side surface S11 and an image-side surface S12. Light from the object passes sequentially through each surface S1 to S12 and is finally imaged on the imaging surface S13.

[0086] Table 4 shows the basic parameters of the optical lens group of Example 2, where the units for radius of curvature, thickness / distance, and focal length are all millimeters (mm).

[0087]

[0088]

[0089] Table 4

[0090] In this embodiment, the total effective focal length f of the optical lens group is 17.50 mm, the distance TTL between the object side surface S1 and the imaging surface S13 of the first lens E1 on the optical axis is 19.00 mm, half the diagonal length of the effective pixel area on the imaging surface S13, ImgH, is 3.67 mm, the aperture value Fno of the optical lens group is 3.53, and half the maximum field of view (Semi-FOV) of the optical lens group is 11.80°.

[0091] Tables 5 and 6 show the higher-order coefficients A4, A6, A8, A10, A11, A12, A13, A14, A15, A16, A17, A18 and A19 that can be used for each of the aspherical surfaces S1 to S10 in Example 2, wherein each aspherical surface shape can be defined by formula (1) given in Example 1 above.

[0092] Face number A4 A6 A8 A10 A11 A12 A13 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 -1.2509E-04 7.1678E-04 -5.1620E-04 9.8696E-05 6.0653E-05 -4.4978E-05 1.2808E-05 S4 -3.9926E-03 1.1612E-02 -1.0570E-02 3.5170E-03 1.4184E-03 -1.9903E-03 9.5327E-04 S5 -2.7159E-02 8.3560E-02 -1.1627E-01 9.9887E-02 -5.6527E-02 2.1425E-02 -5.2532E-03 S6 -4.6769E-02 1.2046E-01 -1.6120E-01 1.3576E-01 -7.5099E-02 2.7788E-02 -6.7281E-03 S7 -3.4242E-02 4.6192E-02 -2.3956E-02 -3.7055E-02 1.0070E-01 -1.2576E-01 1.0317E-01 S8 -2.1323E-02 4.8760E-03 6.5270E-02 -1.8755E-01 2.8997E-01 -2.9862E-01 2.1615E-01 S9 -7.2155E-03 -9.8585E-03 5.6360E-02 -1.1660E-01 1.4580E-01 -1.2273E-01 7.2027E-02 S10 -8.1114E-04 -9.8461E-03 2.9761E-02 -5.1478E-02 5.8862E-02 -4.6500E-02 2.5836E-02

[0093] Table 5

[0094] Face number A14 A15 A16 A17 A18 A19 S1 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 S3 -1.7959E-06 1.0246E-07 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S4 -2.3359E-04 2.4070E-05 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S5 7.4792E-04 -4.6151E-05 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S6 9.7315E-04 -6.3968E-05 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S7 -5.9126E-02 2.3774E-02 -6.5638E-03 1.1834E-03 -1.2532E-04 5.9041E-06 S8 -1.1138E-01 4.0580E-02 -1.0202E-02 1.6817E-03 -1.6340E-04 7.0871E-06 S9 -2.9570E-02 8.3237E-03 -1.5300E-03 1.6534E-04 -7.9638E-06 0.0000E+00 S10 -1.0069E-02 2.6923E-03 -4.6995E-04 4.8190E-05 -2.2001E-06 0.0000E+00

[0095] Table 6

[0096] like Figure 8 As shown, the camera lens 210 includes the aforementioned optical lens group, a lens barrel 211 for housing the aforementioned optical lens group, and a plurality of spacers P1 to P5 located between any two adjacent lenses. Figure 9 As shown, the camera lens 220 includes the aforementioned optical lens group, a lens barrel 221 for housing the aforementioned optical lens group, and a plurality of spacers P1 to P5 located between any two adjacent lenses. Figure 10 As shown, the camera lens 230 includes the aforementioned optical lens group, a lens barrel 231 for housing the aforementioned optical lens group, and a plurality of spacers P1 to P5 located between any two adjacent lenses. In the case of... Figures 8 to 10 In the illustrated camera lens, the first spacer P1 and the second spacer P2 are located between the first lens E1 and the second lens E2. The first spacer P1 contacts at least a portion of the image-side surface S2 of the first lens E1, and the second spacer P2 contacts at least a portion of the object-side surface S3 of the second lens E2. The third spacer P3 is located between the second lens E2 and the third lens E3, the fourth spacer P4 is located between the third lens E3 and the fourth lens E4, and the fifth spacer P5 is located between the fourth lens E5 and the fifth lens E5. In this embodiment, the first spacer P1 and the fourth spacer P4 are spacers, and the second spacer P2, the third spacer P3, and the fifth spacer P5 are spacers. The first spacer P1 to the fifth spacer P5 can block excess external light from entering, allowing the lens to better contact the lens barrel and enhancing the structural stability of the camera lens.

[0097] Table 7 shows the basic parameters of the lens barrel and spacer of the three camera lenses in Example 2. The unit of each parameter in Table 7 is millimeters (mm).

[0098] Lens Number d1s d1m D1s D1m d2s D2s d3s D3s EP23 EP34 EP45 d0m d0s CP4 210 5.01 4.83 5.83 5.92 4.22 6.10 3.27 5.80 1.45 1.00 0.75 3.61 7.56 0.48 220 4.91 4.73 6.03 6.12 4.12 6.30 3.17 6.00 1.45 1.00 0.75 3.6 7.56 0.48 230 4.71 4.63 6.23 6.32 3.92 6.50 2.97 6.20 1.45 1.00 0.75 3.6 7.56 0.48

[0099] Table 7

[0100] Figure 11A The astigmatism curve of the camera lens of Embodiment 2 is shown, which represents the curvature of the meridional image plane and the curvature of the sagittal image plane. Figure 11B The distortion curve of the camera lens in Example 2 is shown, which represents the distortion magnitude value corresponding to different image heights. Figure 11C The magnification chromatic aberration curve of the camera lens in Embodiment 2 is shown, representing the deviation of different image heights on the imaging plane after light passes through the lens. According to... Figures 11A to 11CIt can be seen that the camera lens given in Example 2 can achieve good imaging quality.

[0101] Example 3

[0102] The following is for reference Figures 12 to 16C The optical lens assembly and camera lens according to Embodiment 3 of this application are described. Figure 11 shows a schematic diagram of the structure of the optical lens assembly according to Embodiment 3 of this application. Figures 13 to 15 The embodiments of this application 3 are shown respectively, including as follows: Figure 12 The diagram shows a cross-sectional view of the three types of camera lenses with the shown optical lens group.

[0103] like Figure 12 As shown, the optical lens group includes, in sequence from the object side to the image side along the optical axis: first lens E1, aperture STO, second lens E2, third lens E3, fourth lens E4, fifth lens E5, filter E6, and imaging surface S13.

[0104] The first lens E1 has positive optical power, with its object-side surface S1 being convex and its image-side surface S2 being convex. The second lens E2 has positive optical power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has negative optical power, with its object-side surface S5 being concave and its image-side surface S6 being concave. The fourth lens E4 has positive optical power, with its object-side surface S7 being convex and its image-side surface S8 being convex. The fifth lens E5 has positive optical power, with its object-side surface S9 being concave and its image-side surface S10 being convex. The filter E6 has an object-side surface S11 and an image-side surface S12. Light from the object passes sequentially through surfaces S1 to S12 and is finally imaged onto the imaging surface S13.

[0105] Table 8 shows the basic parameters of the optical lens group of Example 3, where the units for radius of curvature, thickness / distance, and focal length are millimeters (mm).

[0106]

[0107] Table 8

[0108] In this embodiment, the total effective focal length f of the optical lens group is 19.36 mm, the distance TTL between the object side surface S1 of the first lens E1 and the imaging surface S13 on the optical axis is 19.26 mm, half the diagonal length ImgH of the effective pixel area on the imaging surface S13 is 3.47 mm, the aperture value Fno of the optical lens group is 3.47, and half the maximum field of view Semi-FOV of the optical lens group is 9.86°.

[0109] Table 9 shows the higher-order coefficients A4, A6, A8, A10, A11 and A12 of each aspherical surface S7 to S10 in Example 3, wherein each aspherical surface shape can be defined by formula (1) given in Example 1 above.

[0110] Face number A4 A6 A8 A10 A11 A12 S7 -8.7238E-04 -6.3695E-04 2.6713E-04 -2.4668E-05 0.0000E+00 0.0000E+00 S8 6.0455E-04 -5.3345E-04 1.9482E-04 7.7895E-06 -5.3821E-06 2.5748E-07 S9 5.7688E-04 -1.6141E-04 2.7833E-06 -2.1491E-06 -1.6595E-06 0.0000E+00 S10 4.9443E-05 7.7557E-06 -2.8035E-05 -3.1061E-06 1.1323E-07 0.0000E+00

[0111] Table 9

[0112] like Figure 13 As shown, the camera lens 310 includes the aforementioned optical lens group, a lens barrel 311 for housing the aforementioned optical lens group, and a plurality of spacers P1 to P5 located between any two adjacent lenses. Figure 14 As shown, the camera lens 320 includes the aforementioned optical lens group, a lens barrel 321 for housing the aforementioned optical lens group, and a plurality of spacers P1 to P5 located between any two adjacent lenses. Figure 15 As shown, the camera lens 330 includes the aforementioned optical lens group, a lens barrel 331 for housing the aforementioned optical lens group, and a plurality of spacers P1 to P5 located between any two adjacent lenses. In the case of... Figures 13 to 15 In the illustrated camera lens, the first spacer P1 and the second spacer P2 are located between the first lens E1 and the second lens E2, with the first spacer P1 contacting at least a portion of the image-side surface S2 of the first lens E1, and the second spacer P2 contacting at least a portion of the object-side surface S3 of the second lens E2. The third spacer P3 is located between the second lens E2 and the third lens E3, the fourth spacer P4 is located between the third lens E3 and the fourth lens E4, and the fifth spacer P5 is located between the fourth lens E5 and the fifth lens E5. In this embodiment, the first spacer P1 is a spacer ring, and the second to fifth spacers P5 are spacers. The first to fifth spacers P1 can block excess external light from entering, allowing the lens to better contact the lens barrel and enhancing the structural stability of the camera lens.

[0113] Table 10 shows the basic parameters of the lens barrel and spacer of the three camera lenses in Example 3. The unit of each parameter in Table 10 is millimeters (mm).

[0114] Lens Number d1s d1m D1s D1m d2s D2s d3s D3s EP23 EP34 EP45 d0m d0s CP4 310 6.16 5.33 6.58 6.08 4.84 7.10 4.11 6.40 1.19 1.09 0.83 5.03 7.60 0.02 320 6.06 5.13 6.94 6.46 4.74 7.30 4.11 6.60 1.19 1.09 0.83 5.03 7.60 0.02 330 5.86 5.03 7.04 6.56 4.64 7.40 3.91 6.80 1.19 1.09 0.83 5.03 7.60 0.02

[0115] Table 10

[0116] Figure 16A The astigmatism curve of the camera lens of Embodiment 3 is shown, which represents the curvature of the meridional image plane and the curvature of the sagittal image plane. Figure 16B The distortion curve of the camera lens in Example 3 is shown, which represents the distortion magnitude value corresponding to different image heights. Figure 16CThe magnification chromatic aberration curve of the camera lens in Embodiment 3 is shown, representing the deviation of different image heights on the imaging plane after light passes through the lens. According to... Figures 16A to 16C It can be seen that the camera lens given in Example 3 can achieve good imaging quality.

[0117] In summary, Examples 1 to 3 satisfy the relationships shown in Table 11.

[0118]

[0119] Table 11

[0120] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A camera lens, comprising an optical lens group, a plurality of spacers, and a lens barrel for housing the optical lens group and the plurality of spacers, characterized in that, The optical lens group includes, sequentially from the object side to the image side along the optical axis, a first lens, a second lens, a third lens, a fourth lens, and a fifth lens, each with optical power. The first lens has positive optical power and its object side is convex. The second lens has a convex-concave meniscus shape; The third lens has negative optical power, and its object side is concave, as is its image side; The fourth lens has positive optical power and its object side is convex. The fifth lens has a positive optical power and a meniscus shape with a concave-convex surface, and the second lens has a meniscus shape with the convex direction opposite to that of the fifth lens; The number of lenses with optical power in the camera lens is five; The plurality of spacers includes at least one spacer located between any two adjacent lenses, the at least one spacer being in contact with at least a portion of the adjacent lens; The plurality of spacers includes a first spacer and a second spacer located between the first lens and the second lens, wherein the second spacer contacts at least a portion of the object side surface of the first spacer and the second lens, respectively. The plurality of spacers also includes a third spacer located between the second lens and the third lens, wherein the object side of the third spacer contacts at least a portion of the image side of the second lens, and the image side of the third spacer contacts at least a portion of the object side of the third lens. The camera lens satisfies: 27.91 ≤ (d2s + d3s) / (R3 + R4) V2≤58.61, where d2s is the inner diameter of the object-side surface of the second spacer, d3s is the inner diameter of the object-side surface of the third spacer, R3 is the radius of curvature of the object-side surface of the second lens, R4 is the radius of curvature of the image-side surface of the second lens, and V2 is the Abbe number of the second lens; and The distance TD between the object-side surface of the first lens and the image-side surface of the fifth lens on the optical axis, the aperture value Fno of the optical lens group, and the inner diameter d0s of the object-side end of the lens barrel and the inner diameter d0m of the image-side end of the lens barrel satisfy the following condition: 7.05≤TD / (d0s-d0m). Fno≤10.

95.

2. The camera lens according to claim 1, characterized in that, The inner diameter d1s of the object-side surface of the first spacer, the outer diameter D1s of the object-side surface of the first spacer, the inner diameter d2s of the object-side surface of the second spacer, the outer diameter D2s of the object-side surface of the second spacer, the effective focal length f1 of the first lens, and half of the maximum field of view (Semi-FOV) of the optical lens group satisfy the following: 3.89 ≤ (D2s - d2s) / (D1s - d1s) + (f1s) tan(Semi-FOV))≤7.

54.

3. The camera lens according to claim 1, characterized in that, The inner diameter d1s of the object side of the first spacer, the outer diameter D1s of the object side of the first spacer, the inner diameter d1m of the image side of the first spacer, the outer diameter D1m of the image side of the first spacer, the radius of curvature R2 of the image side of the first lens, and the radius of curvature R3 of the object side of the second lens satisfy the following: 7.48≤|(R2 / R3)+(d1s / d1m)+(D1s / D1m)|≤15.

73.

4. The camera lens according to claim 1, characterized in that, The inner diameter d1s of the object side of the first spacer, the outer diameter D1s of the object side of the first spacer, the inner diameter d1m of the image side of the first spacer, the outer diameter D1m of the image side of the first spacer, the radius of curvature R2 of the image side of the first lens, and the radius of curvature R3 of the object side of the second lens satisfy the following: 2.33≤|(R2+d1s+D1s) / (R3+d1m+D1m)|≤3.

76.

5. The camera lens according to claim 1, characterized in that, The camera lens satisfies: 1.23≤D3s tan(Semi-FOV) / T23≤3.96, Wherein, D3s is the outer diameter of the object side of the third spacer, Semi-FOV is half of the maximum field of view of the optical lens group, and T23 is the distance between the second lens and the third lens on the optical axis.

6. The camera lens according to claim 1, characterized in that, The plurality of spacers further includes a fourth spacer located between the third lens and the fourth lens, and a fifth spacer located between the fourth lens and the fifth lens, wherein the camera lens satisfies: 0.80≤EP23 / CT2≤1.11 and 1.62≤EP34 / CT3≤2.18 and 0.75≤EP45 / CT4≤1.04, Wherein, EP23 is the distance between the second spacer and the third spacer on the optical axis, CT2 is the center thickness of the second lens on the optical axis, EP34 is the distance between the third spacer and the fourth spacer on the optical axis, CT3 is the center thickness of the third lens on the optical axis, EP45 is the distance between the fourth spacer and the fifth spacer on the optical axis, and CT4 is the center thickness of the fourth lens on the optical axis.

7. The camera lens according to claim 1, characterized in that, The plurality of spacers includes a fourth spacer located between the third lens and the fourth lens, and a fifth spacer located between the fourth lens and the fifth lens, wherein the distance EP45 between the fourth spacer and the fifth spacer on the optical axis, the thickness CP4 of the fourth spacer, the center thickness CT4 of the fourth lens on the optical axis, and the refractive index N4 of the fourth lens satisfy the following condition: 1.39 ≤ (EP45 + CP4) / CT4 N4≤4.

28.

8. The camera lens according to claim 1, characterized in that, The plurality of spacers includes a fourth spacer located between the third lens and the fourth lens, wherein the distance EP34 between the third spacer and the fourth spacer on the optical axis, the thickness CP4 of the fourth spacer, the center thickness CT3 of the third lens on the optical axis, and the distance T23 between the second lens and the third lens on the optical axis satisfy the following condition: 0.79≤(EP34+CP4) / (CT3+T23)<2.

9. The camera lens according to claim 1, characterized in that, The first lens is made of glass, and any one of the second to fifth lenses is made of plastic.

Images