Optical system assembly

Abstract

The application discloses an optical system assembly. The optical system assembly comprises a lens set, a plurality of abutting members, and a lens barrel for accommodating the lens set and the plurality of abutting members. The lens set comprises, in sequence from the object side to the image side along the optical axis, a first lens with optical power, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens, wherein the first lens, the third lens, the fifth lens, and the sixth lens have positive optical power, the second lens and the fourth lens have negative optical power, the object side surface of the first lens, the fourth lens, and the fifth lens is concave and the image side surface is convex, the object side surface of the second lens and the sixth lens is convex and the image side surface is concave, the object side surface of the third lens is convex and the image side surface is convex, and the number of lenses with optical power in the lens set is six. The plurality of abutting members comprises a first abutting member. The optical system assembly satisfies 45°<Semi-FOV<60°, 0<EP01 / f1<1.0, and 0<L / (f1+f6)<0.9.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of optical elements, in particular, to an optical system assembly. BACKGROUND

[0002] With the increasingly fierce market competition of portable electronic devices such as smart phones, many mobile terminal manufacturers begin to spare no effort to invest in the process and technology upgrading of mobile phones. Among them, the photographing function of mobile phones has become one of the main directions to improve the competitiveness of mobile phones.

[0003] As one of the important lenses for mobile phone photography, the wide-angle lens has the shooting field angle and the distortion size as the main evaluation parameters of the imaging quality of the wide-angle lens, and is the key to the technical upgrading of the wide-angle lens. In order to improve the competitiveness, many lens designers pay more attention to the problems such as large shooting field angle, wider shooting range, better optimization of distortion, etc. in the design, and thus ignore the space proportion of the lens structure and the appearance demand. SUMMARY

[0004] The present application provides an optical system assembly, which comprises, in order from the object side to the image side along the optical axis, a lens group, a plurality of supporting members, and a lens barrel for accommodating the lens group and the plurality of supporting members. The lens group comprises, in order from the object side to the image side along the optical axis, a first lens having a refractive power, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens, wherein the first lens, the third lens, the fifth lens, and the sixth lens have positive refractive power, the second lens and the fourth lens have negative refractive power, the object side surface of the first lens, the fourth lens, and the fifth lens is concave and the image side surface is convex, the object side surface of the second lens and the sixth lens is convex and the image side surface is concave, the object side surface of the third lens is convex and the image side surface is convex, and the number of lenses having refractive power in the lens group is six. The plurality of supporting members comprises a first supporting member located on the image side of the first lens and partially in contact with the image side surface of the first lens. The optical system assembly can satisfy 45° < Semi-FOV < 60°, 0 < EP01 / f1 < 1.0, and 0 < L / (f1+f6) < 0.9, wherein Semi-FOV is half of the maximum field angle of the optical system assembly, EP01 is the interval distance between the object side end of the lens barrel and the object side surface of the first supporting member in the direction along the optical axis, f1 is the effective focal length of the first lens, f6 is the effective focal length of the sixth lens, and L is the interval distance between the object side end of the lens barrel and the image side end of the lens barrel in the direction along the optical axis.

[0005] In one embodiment, at least one of the object side surface of the first lens to the image side surface of the sixth lens is an aspherical surface.

[0006] In one embodiment, the optical system assembly can satisfy: -1.0 < CT1 / R1 < 0 and 0 < EP01 / f1 < 0.5, where CT1 is a center thickness of the first lens on the optical axis, R1 is a radius of curvature of the object side surface of the first lens, EP01 is a separation distance of the object side end of the lens barrel to the object side surface of the first abutment in a direction along the optical axis, and f1 is an effective focal length of the first lens.

[0007] In one embodiment, the plurality of abutments includes a second abutment located on the image side of the second lens and partially in contact with the image side surface of the second lens, and a third abutment located on the image side of the third lens and partially in contact with the image side surface of the third lens. The optical system assembly can satisfy: 1.5 < (T23+CT3) / EP23 < 2.5, where T23 is an air separation of the second lens and the third lens on the optical axis, CT3 is a center thickness of the third lens on the optical axis, and EP23 is a separation distance of the image side surface of the second abutment to the object side surface of the third abutment in a direction along the optical axis.

[0008] In one embodiment, the optical system assembly can satisfy: -20.0 < N1 x f1 / R1 < -4.0, where N1 is a refractive index of the first lens, f1 is an effective focal length of the first lens, and R1 is a radius of curvature of the object side surface of the first lens.

[0009] In one embodiment, the plurality of abutments includes a second abutment located on the image side of the second lens and partially in contact with the image side surface of the second lens, and a third abutment located on the image side of the third lens and partially in contact with the image side surface of the third lens. The optical system assembly can satisfy: -9.0 < (D3s / R6) / (D2s / R5) < -5.0, where D2s is an outer diameter of the object side surface of the second abutment, D3s is an outer diameter of the object side surface of the third abutment, R5 is a radius of curvature of the object side surface of the third lens, and R6 is a radius of curvature of the image side surface of the third lens.

[0010] In one embodiment, the plurality of abutments includes a second abutment located on the image side of the second lens and partially in contact with the image side surface of the second lens, and a third abutment located on the image side of the third lens and partially in contact with the image side surface of the third lens. The optical system assembly can satisfy: -0.5 < f / f2 < 0 and 0.3 < N2 x CT2 / EP23 < 2.0, where f is a total effective focal length of the optical system assembly, f2 is an effective focal length of the second lens, N2 is a refractive index of the second lens, CT2 is a center thickness of the second lens on the optical axis, and EP23 is a separation distance of the image side surface of the second abutment to the object side surface of the third abutment in a direction along the optical axis.

[0011] In one embodiment, the plurality of abutments includes a fourth abutment located on the image side of the fourth lens and partially in contact with the image side surface of the fourth lens, and a fifth abutment located on the image side of the fifth lens and partially in contact with the image side surface of the fifth lens. The optical system assembly can satisfy -10.0 < f5 / R9 + f5 / R10 < 0 and 12.0 < f5 / EP45 < 25.0, where f5 is the effective focal length of the fifth lens, R9 is the radius of curvature of the object side surface of the fifth lens, R10 is the radius of curvature of the image side surface of the fifth lens, and EP45 is the separation distance in the direction along the optical axis from the image side surface of the fourth abutment to the object side surface of the fifth abutment.

[0012] In one embodiment, the plurality of abutments includes a fourth abutment located on the image side of the fourth lens and partially in contact with the image side surface of the fourth lens, and a fifth abutment located on the image side of the fifth lens and partially in contact with the image side surface of the fifth lens. The optical system assembly can satisfy 0.6 < (CP5 + EP45) / CT5 < 2.0, where CP5 is the maximum thickness of the fifth abutment in the direction along the optical axis, EP45 is the separation distance in the direction along the optical axis from the image side surface of the fourth abutment to the object side surface of the fifth abutment, and CT5 is the center thickness of the fifth lens in the optical axis.

[0013] In one embodiment, the optical system assembly can satisfy 1.0 < L / ∑CT < 2.0, where L is the separation distance in the direction along the optical axis from the object side end of the lens barrel to the image side end of the lens barrel, and ∑CT is the sum of the center thicknesses of the first lens to the sixth lens in the optical axis.

[0014] In one embodiment, the plurality of abutments includes a fourth abutment located on the image side of the fourth lens and partially in contact with the image side surface of the fourth lens, and a fifth abutment located on the image side of the fifth lens and partially in contact with the image side surface of the fifth lens. The optical system assembly can satisfy -25.0 < f456 / (EP45 + CT5 + CT6) < -12.0, where f456 is the combined focal length of the fourth lens, the fifth lens, and the sixth lens, EP45 is the separation distance in the direction along the optical axis from the image side surface of the fourth abutment to the object side surface of the fifth abutment, CT5 is the center thickness of the fifth lens in the optical axis, and CT6 is the center thickness of the sixth lens in the optical axis.

[0015] In one embodiment, the optical system assembly can satisfy 0.3 < (DT12 + DT21) / D1s < 1.0, where DT12 is the maximum effective radius of the image side surface of the first lens, DT21 is the maximum effective radius of the object side surface of the second lens, and D1s is the outer diameter of the object side surface of the first abutment.

[0016] In an embodiment, the plurality of abutments includes a second abutment located on the image side of the second lens and partially in contact with the image side surface of the second lens, and a third abutment located on the image side of the third lens and partially in contact with the image side surface of the third lens. The optical system assembly can satisfy: 1.0 < (|SAGH32| + EP23) / T34 < 2.0, where SAGH32 is the distance between the intersection of the image side surface of the third lens and the optical axis and the vertex at the maximum radius of the image side surface of the third lens in a direction perpendicular to the optical axis, EP23 is the interval distance between the image side surface of the second abutment and the object side surface of the third abutment in the direction along the optical axis, and T34 is the air interval of the third lens and the fourth lens along the optical axis.

[0017] In an embodiment, the plurality of abutments includes a fourth abutment located on the image side of the fourth lens and partially in contact with the image side surface of the fourth lens, and the object side surface of the fifth lens has at least one inflection point. The optical system assembly can satisfy: 7.0 < (d4s / Yc51) / (R10 / R9) < 15.0, where d4s is the inner diameter of the object side surface of the fourth abutment, Yc51 is the distance between the inflection point on the object side surface of the fifth lens close to the optical axis and the intersection of the object side surface of the fifth lens and the optical axis in a direction perpendicular to the optical axis, R9 is the radius of curvature of the object side surface of the fifth lens, and R10 is the radius of curvature of the image side surface of the fifth lens.

[0018] In an embodiment, the plurality of abutments further includes a third abutment located on the image side of the third lens and partially in contact with the image side surface of the third lens, a fourth abutment located on the image side of the fourth lens and partially in contact with the image side surface of the fourth lens, a fifth abutment located on the image side of the fifth lens and partially in contact with the image side surface of the fifth lens, and at least one auxiliary abutment located on the image side of at least one of the third abutment, the fourth abutment and the fifth abutment and partially in contact with the image side surface of the at least one abutment.

[0019] In an embodiment, the maximum diameter of the first lens is smaller than the maximum diameter of the sixth lens.

[0020] In the exemplary embodiments of the present application, by setting the optical powers and surface shapes of the first to sixth lenses, and matching 45° < Semi-FOV < 60° and 0 < EP01 / f1 < 1.0, the optical system assembly can have large field of view, wide shooting range and small distortion at the same time, thereby improving the shooting effect. On this basis, by setting 0 < L / (f1 + f6) < 0.9, the imaging quality can be ensured while the size ratio of the system assembly such as the optical lens is reasonably controlled to meet the market demand for miniaturization and light weight of the lens, and the object side surface of the first lens and the image side surface of the sixth lens are ensured not to protrude from the lens barrel, thereby reducing the phenomenon that the imaging effect and imaging quality are affected by scratches on the exposed surface of the lens. Attached Figure Description

[0021] 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:

[0022] Figure 1 This is a schematic diagram of the optical system components of Example 1;

[0023] Figure 2 This is a schematic diagram of the optical system components in Embodiment 2;

[0024] Figure 3 This is a schematic diagram of the optical system components in Example 3;

[0025] Figures 4A to 4D The on-axis chromatic aberration curves, astigmatism curves, distortion curves, and magnification chromatic aberration curves of the optical system components of Examples 1 to 3 are shown respectively.

[0026] Figure 5 This is a schematic diagram of the optical system components in Example 4;

[0027] Figure 6 This is a schematic diagram of the optical system components in Example 5;

[0028] Figure 7 This is a schematic diagram of the optical system components in Example 6;

[0029] Figures 8A to 8D The on-axis chromatic aberration curves, astigmatism curves, distortion curves, and magnification chromatic aberration curves of the optical system components of Examples 4 to 6 are shown respectively.

[0030] Figure 9 This is a schematic diagram of the optical system components of Example 7;

[0031] Figure 10 This is a schematic diagram of the optical system components in Example 8;

[0032] Figure 11 This is a schematic diagram of the optical system components of Example 9;

[0033] Figures 12A to 12D The on-axis chromatic aberration curves, astigmatism curves, distortion curves, and magnification chromatic aberration curves of the optical system components of Examples 7 to 9 are shown respectively; and

[0034] Figure 13 This is a schematic diagram of some parameters of an optical system component according to an embodiment of this application. Detailed Implementation

[0035] For a better understanding of the present application, various aspects of the present application will be described in more detail below with reference to the accompanying drawings. It is to be noted that these detailed description is merely descriptive of exemplary embodiments of the present application and is not intended in any way to limit the scope of the present application. Throughout the specification, like drawing reference numerals will be understood to refer to like parts throughout the specification and the claims. The expression "and / or" encompasses any and all combinations of one or more of the associated listed items.

[0036] It is to be noted that, in the present specification, the expressions first, second, third, etc. are used merely to distinguish one feature from another, and do not represent any limitation on the features. Thus, the first lens discussed below can also be referred to as the second lens or the third lens, and the first abutment can also be referred to as the second abutment or the third abutment, without departing from the teachings of the present application.

[0037] In the drawings, the thickness, size, and shape of the lenses have been exaggerated slightly for ease of explanation. Specifically, the shape of the spherical or aspherical surface shown in the drawings is shown by way of example. That is, the shape of the spherical or aspherical surface is not limited to the shape of the spherical or aspherical surface shown in the drawings. The drawings are merely examples and are not drawn to scale. It is to be understood that the thickness, size, and shape of the abutments and the lens barrel have also been exaggerated slightly in the drawings for ease of explanation.

[0038] In the present specification, the paraxial region refers to a region near the optical axis. If the lens surface is convex and the position of the convex surface is not specified, it means that the lens surface is convex at least in the paraxial region. If the lens surface is concave and the position of the concave surface is not specified, it means that the lens surface is concave at least in the paraxial region. The surface of each lens closest to the object is referred to as the object side surface of the lens, and the surface of each lens closest to the image plane is referred to as the image side surface of the lens. It is to be understood that the surface of each abutment closest to the object is referred to as the object side surface of the abutment, and the surface of each abutment closest to the image plane is referred to as the image side surface of the abutment. The surface of the lens barrel closest to the object is referred to as the object side end of the lens barrel, and the surface of the lens barrel closest to the image plane is referred to as the image side end of the lens barrel.

[0039] It is also to be understood that the terms "comprise", "comprising", "have", "having", "include", "including" and / or "contain", when used in this specification, indicate the presence of the stated feature, element and / or component but do not preclude the presence or addition of one or more other features, elements, components and / or groups thereof. Furthermore, when describing the embodiments of the present application, the use of "may" indicates that one or more embodiments of the present application. Also, the term "exemplary" is intended to mean an example or an illustration.

[0040] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0041] It should be noted that the embodiments and features of the embodiments in the present application can be combined with each other without conflict. The following embodiments only express several implementation manners of the present application, which are described in detail and specifically, but should not be understood as a limitation on the patent scope of the present application. It should be pointed out that, for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. For example, the lens set (i.e. the first lens to the sixth lens), the lens barrel structure and the supporting member in each embodiment of the present application can be combined arbitrarily, and are not limited to the combination of the lens set, the lens barrel structure, the supporting member and the like in one embodiment. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

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

[0043] The optical system assembly according to the exemplary embodiments of the present application can include six lenses with optical power, which are a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens. The six lenses are arranged in order along an optical axis from an object side to an image side. Any two adjacent lenses among the first lens to the sixth lens can have a separation distance. Any lens among the first lens to the sixth lens can have a center thickness on the optical axis.

[0044] According to the exemplary embodiments of the present application, the first lens to the sixth lens can each have an optical area for optical imaging and a non-optical area extending outward from the periphery of the optical area. Generally, the optical area refers to the area of the lens for optical imaging, and the non-optical area refers to the structural area of the lens. During assembly of the optical system assembly, an abutment can be disposed at the non-optical area of each lens by a process such as point bonding and the like, and each lens can be coupled to the lens barrel, respectively. During imaging of the optical system assembly, the optical area of each lens can transmit light from an object to form an optical path and form a final optical image; and the non-optical area of each lens after assembly is accommodated in the lens barrel that cannot transmit light, so that the non-optical area does not directly participate in the imaging process of the optical system assembly. It should be noted that, for the purpose of description, the present application divides each lens into two parts, the optical area and the non-optical area, for description, but it should be understood that the optical area and the non-optical area of the lens can be formed as a whole during manufacturing, rather than as two separate parts.

[0045] In an embodiment of the present application, the optical system assembly can include at least one abutment, for example, at least one of the first abutment, the second abutment, the third abutment, the fourth abutment, and the fifth abutment. The first abutment can be located on the image side of the first lens and partially in contact with the image side surface of the first lens, and can abut against the non-optical area of the image side surface of the first lens. The second abutment can be located on the image side of the second lens and partially in contact with the image side surface of the second lens, and can abut against the non-optical area of the image side surface of the second lens. The third abutment can be located on the image side of the third lens and partially in contact with the image side surface of the third lens, and can abut against the non-optical area of the image side surface of the third lens. The fourth abutment can be located on the image side of the fourth lens and partially in contact with the image side surface of the fourth lens, and can abut against the non-optical area of the image side surface of the fourth lens. The fifth abutment can be located on the image side of the fifth lens and partially in contact with the image side surface of the fifth lens, and can abut against the non-optical area of the image side surface of the fifth lens. Exemplarily, the first abutment can be in contact with the non-optical area of the image side surface of the first lens, and can be in contact with the non-optical area of the object side surface of the second lens. For example, the object side surface of the first abutment can be in contact with the non-optical area of the image side surface of the first lens, and the image side surface of the first abutment can be in contact with the non-optical area of the object side surface of the second lens.

[0046] In another embodiment of the present application, the optical system assembly can further include at least one auxiliary abutting member. The auxiliary abutting member can be located on the image side of at least one of the third, fourth and fifth abutting members and partially contact the image side surface of the at least one abutting member. In the present application, the air gap between the lenses can be increased to meet the focal length of the optical system assembly, and therefore the auxiliary abutting member can be provided on the image side of the main abutting member in contact with the lenses to ensure the shaping of the main abutting member. At the same time, since there can be a large stray light risk in the inner diameter surface of the main abutting member in the direction of the optical axis, the auxiliary abutting member can be provided to block the stray light path reflected by the inner diameter surface of the main abutting member, thereby improving the imaging quality of the optical system assembly.

[0047] The optical system assembly according to the exemplary embodiments of the present application can include a lens barrel accommodating a lens group and a plurality of abutting members. For example, as shown in FIG. 1, the lens barrel P0 can be used to accommodate the first to sixth lenses E1 to E6 and the first to fifth abutting members P1 to P5. Figure 1

[0048] According to the exemplary embodiments of the present application, the abutting member can include at least one spacer. By reasonably setting the number, thickness, inner diameter and outer diameter of the spacer, the assembly of the optical system assembly can be facilitated, stray light can be blocked, and the imaging quality of the optical system assembly can be improved.

[0049] In the exemplary embodiments, the signs of the optical powers of the first, third, fifth and sixth lenses can be positive, the signs of the optical powers of the second and fourth lenses can be negative, the object side surfaces of the first, fourth and fifth lenses can be concave and the image side surfaces thereof can be convex, the object side surfaces of the second and sixth lenses can be convex and the image side surfaces thereof can be concave, and the object side surface of the third lens can be convex and the image side surface thereof can be convex. The optical system assembly according to the present application can satisfy 45° < Semi-FOV < 60°, 0 < EP01 / f1 < 1.0 and 0 < L / (f1+f6) < 0.9, where Semi-FOV is half of the maximum field angle of the optical system assembly, EP01 is the separation distance between the object side end of the lens barrel and the object side surface of the first abutting member in the direction of the optical axis (f1 is the effective focal length of the first lens, f6 is the effective focal length of the sixth lens, and L is the separation distance between the object side end of the lens barrel and the image side end of the lens barrel in the direction of the optical axis (f1+f6). Figure 13 Figure 13

[0050] ​​​In this application, by setting the optical power and surface shape of the first to sixth lenses, and combining 45° < Semi-FOV < 60° and 0 < EP01 / f1 < 1.0, the optical system components can simultaneously possess characteristics such as a large field of view, a wide shooting range, and low distortion, thereby improving the shooting effect. Furthermore, by setting 0 < L / (f1+f6) < 0.9, the size ratio of system components such as the optical lens can be reasonably controlled while ensuring image quality, meeting market demands for lens miniaturization and lightweighting. It also ensures that the object side of the first lens and the image side of the sixth lens do not protrude from the lens barrel, reducing the impact of scratches on the exposed lens surfaces on image quality and other phenomena.

[0051] In an exemplary embodiment, the optical system component according to this application may satisfy: -1.0 < CT1 / R1 < 0 and 0 < EP01 / f1 < 0.5, where CT1 is the center thickness of the first lens on the optical axis, R1 is the radius of curvature of the object side surface of the first lens, and EP01 is the distance between the object side end of the lens barrel and the object side surface of the first support member in the direction along the optical axis. Figure 13 f1 is the effective focal length of the first lens element. More specifically, EP01 and f1 can further satisfy 0 < EP01 / f1 < 0.07. Satisfying -1.0 < CT1 / R1 < 0 and 0 < EP01 / f1 < 0.5, the shooting range of the lens barrel, i.e., the size of the field of view, can be controlled by controlling the center thickness of the first lens element on the optical axis and the radius of curvature of the object side surface of the first lens element. The thickness of the non-optical area of ​​the first lens element can be controlled by controlling the distance between the object side end of the lens barrel and the object side surface of the first support member along the optical axis. Furthermore, the contour of the first lens element can be reasonably set by controlling the effective focal length and the radius of curvature of the first lens element to achieve the field of view of a wide-angle lens and increase the shooting range.

[0052] In an exemplary embodiment, the optical system component according to this application can satisfy: 1.5 < (T23 + CT3) / EP23 < 2.5, where T23 is the air gap between the second and third lenses on the optical axis, CT3 is the center thickness of the third lens on the optical axis, and EP23 is the distance between the image side of the second support member and the object side of the third support member along the optical axis. Figure 13 In this application, the thickness of the second support member is related to the air gap between the second and third lens elements on the optical axis. For example, the larger the air gap between the second and third lens elements on the optical axis, the larger the thickness of the second support member. Satisfying 1.5 < (T23 + CT3) / EP23 < 2.5 is beneficial to improving the selectivity and manufacturability of the second support member, thereby reducing the impact of the support member on assembly stability and improving the assembly yield of the lens.

[0053] In an example embodiment, the optical system assembly according to the present application can satisfy: -20.0 < N1xf1 / R1 < -4.0, where N1 is the refractive index of the first lens, f1 is the effective focal length of the first lens, and R1 is the curvature radius of the object side surface of the first lens. In the present application, the profile of the first lens determines the shooting range of the lens, i.e., the size of the field of view, for example, the greater the curvature radius of the object side surface of the first lens, i.e., the greater R1, the greater the shooting range. Under this premise, the greater the refractive index of the first lens, i.e., the greater N1, the greater the curvature radius of the image side surface of the first lens, thereby affecting the effective focal length f1 of the first lens. Satisfying -20.0 < N1xf1 / R1 < -4.0 can control the profile of the first lens within a reasonable range to realize the processing and molding of the first lens, thereby ensuring that the first lens can normally transmit light to make the lens normally image.

[0054] In an example embodiment, the optical system assembly according to the present application can satisfy: -9.0 < (D3s / R6) / (D2s / R5) < -5.0, where D2s is the outer diameter of the object side surface of the second abutting member, D3s is the outer diameter of the object side surface of the third abutting member, R5 is the curvature radius of the object side surface of the third lens, and R6 is the curvature radius of the image side surface of the third lens. Figure 13 In the present application, the curvature radii R5 and R6 of the object side surface and the image side surface of the third lens directly affect the profile of the optical region of the third lens, the outer diameter D3s of the object side surface of the third abutting member directly affects the size of the outer diameter of the third lens, and D3s, R5 and R6 together directly affect the shape of the third lens. Satisfying -9.0 < (D3s / R6) / (D3s / R5) < -5.0 is conducive to controlling the size ratio of the third lens within a reasonable range to reduce the processing and molding difficulty of the third lens and reduce the adverse effects of the third lens on light transmission, thereby ensuring the imaging quality of the lens.

[0055] In an example embodiment, the optical system assembly according to the present application can satisfy: -0.5 < f / f2 < 0 and 0.3 < N2xCT2 / EP23 < 2.0, where f is the total effective focal length of the optical system assembly, f2 is the effective focal length of the second lens, N2 is the refractive index of the second lens, CT2 is the central thickness of the second lens along the optical axis, and EP23 is the interval distance from the image side surface of the second abutting member to the object side surface of the third abutting member in the direction along the optical axis. Figure 13) In the present application, the central thickness of the second lens on the optical axis directly affects the position of the components close to the object side of the second lens, such as the diaphragm, and the interval distance of the second bearing to the object side of the third bearing directly affects the thickness of the non-optical area of the second lens. Satisfying -0.5

[0056] In the exemplary embodiments, the optical system assembly according to the present application can satisfy -10.0 Figure 13 ) Satisfying -10.0

[0057] In the exemplary embodiments, the optical system assembly according to the present application can satisfy 0.6 Figure 13 ) EP45 is the interval distance of the image side of the fourth bearing to the object side of the fifth bearing in the direction along the optical axis (CT5 is the central thickness of the fifth lens on the optical axis. In the present application, the thickness of the fifth bearing and the interval distance of the image side of the fourth bearing to the object side of the fifth bearing in the direction along the optical axis jointly affect the assembly structure of the fifth lens. Satisfying 0.6 Figure 13

[0058] ​In an exemplary embodiment, the optical system component according to this application can satisfy: 1.0 < L / ∑CT < 2.0, where L is the distance between the object-side end and the image-side end of the lens barrel along the optical axis. Figure 13 ∑CT is the sum of the center thicknesses of the first to sixth lenses along the optical axis. In this application, scratches on the lens surfaces (such as the object side of the first lens and / or the image side of the sixth lens) can affect the stray ghosting effect of the optical system components. Satisfying 1.0 < L / ∑CT < 2.0 ensures that both the first and sixth lenses are contained within the object and image sides of the lens barrel, preventing scratches on the object side of the first lens and the image side of the sixth lens, thus avoiding appearance problems with the optical system components. Simultaneously, the lens barrel's containment of the lenses effectively prevents stray ghosting caused by lens scratches, improving the imaging quality of the optical system components.

[0059] In an exemplary embodiment, the optical system components according to this application can satisfy: -25.0 < f456 / (EP45+CT5+CT6) < -12.0, where f456 is the combined focal length of the fourth, fifth, and sixth lenses, and EP45 is the distance between the image-side surface of the fourth support member and the object-side surface of the fifth support member along the optical axis. Figure 13 CT5 is the center thickness of the fifth lens along the optical axis, and CT6 is the center thickness of the sixth lens along the optical axis. In this application, the combined focal length f456 of the fourth, fifth, and sixth lenses, as well as the center thicknesses CT5 and CT6 of the fifth and sixth lenses along the optical axis, jointly determine the external profile of these three lenses. Satisfying -25.0 < f456 / (EP45+CT5+CT6) < -12.0 ensures that the height of light passing through the sixth lens meets the image height requirements of the optical system components, while also controlling the external profiles of the fourth, fifth, and sixth lenses within a reasonable range. This facilitates control over the height of light passing through these three lenses, ensuring the imaging height of the optical system components to meet shooting requirements.

[0060] In an exemplary embodiment, the optical system component according to this application satisfies: 0.3 < (DT12 + DT21) / D1s < 1.0, where DT12 is the maximum effective radius of the image-side surface of the first lens, DT21 is the maximum effective radius of the object-side surface of the second lens, and D1s is the outer diameter of the object-side surface of the first support member. Figure 13In this application, the first support member can block the optical path of the non-optical areas of the first and second lenses. The larger the outer diameter of the side of the first support member, the better the blocking effect. The optical path blocking effect is best when the outer diameter of the side of the first support member is the same as the maximum outer diameter of the second lens. Satisfying 0.3 < (DT12 + DT21) / D1s < 1.0 allows the first support member to block the optical path of the non-optical areas of the first and second lenses as much as possible, reducing stray light in the optical system components.

[0061] In an exemplary embodiment, the optical system component according to this application can satisfy: 1.0 < (|SAGH32| + EP23) / T34 < 2.0, where SAGH32 is the distance in a direction perpendicular to the optical axis between the intersection of the image-side surface of the third lens and the vertex at the maximum radius of the image-side surface of the third lens. Figure 13 ), EP23 is the distance between the image side of the second support member and the object side of the third support member along the optical axis. Figure 13 T34 is the air gap between the third and fourth lens elements on the optical axis. Satisfying 1.0 < (|SAGH32| + EP23) / T34 < 2.0 is beneficial for controlling the maximum thickness of the non-optical area of ​​the third lens element along the optical axis, and also for keeping EP23 within a smaller range to improve the shaping effect of the third lens element, reduce stray light paths in the non-optical area of ​​the third lens element, and improve the shooting quality of the optical system components.

[0062] In an exemplary embodiment, the object-side surface of the fifth lens has at least one inflection point. The optical system assembly according to this application satisfies: 7.0 < (d4s / Yc51) / (R10 / R9) < 15.0, where d4s is the inner diameter of the object-side surface of the fourth support member (…). Example 1 Yc51 is the distance along the direction perpendicular to the optical axis between the inflection point near the optical axis on the object side of the fifth lens and the intersection point of the object side and the optical axis of the fifth lens. R9 is the radius of curvature of the object side of the fifth lens, and R10 is the radius of curvature of the image side of the fifth lens. In this application, the greater the difference between the radius of curvature of the object side and the radius of curvature of the image side of the fifth lens, the greater the degree of inflection on the object side of the fifth lens relative to the optical axis, and the greater the height difference between the light entering and exiting the fifth lens. At the same time, the smaller the inner diameter of the object side of the fourth support member, the better the blocking effect on the light passing through the non-optical area of ​​the fourth lens, which is more conducive to reducing stray light in the optical system components. Satisfying 7.0 < (d4s / Yc51) / (R10 / R9) < 15.0 can both increase the height of the light passing through the fifth lens and control the inner diameter of the object side of the fourth support member within a small range, thereby improving the light blocking effect of the fourth support member and reducing stray light in the optical system components.

[0063] In the example embodiment, the maximum diameter of the first lens can be smaller than the maximum diameter of the sixth lens. The maximum diameters of the first to sixth lenses can increase successively, for example. This can ensure the assembly of the lenses and the stable assembly and use of the optical system assembly. Meanwhile, the successively increasing maximum diameters of the first to sixth lenses can ensure that the outer diameter of the bearing at the image side of each lens is greater than the maximum outer diameter of the object side lens, and can ensure that the stray light path of the non-optical region of each lens is shielded as much as possible, thereby improving the imaging quality of the optical system assembly.

[0064] In the example embodiment, the optical system assembly according to the present application further comprises a diaphragm arranged between the second lens and the third lens. Optionally, the optical system assembly can further comprise a filter for correcting color deviation and / or a protective glass for protecting the photosensitive element located on the imaging surface. The present application proposes an optical system assembly with a large field of view, a small space ratio, less stray light, high stability, high yield, and high imaging quality. The optical system assembly according to the above-mentioned embodiments of the present application can use multiple lenses, for example, six lenses as described above. By reasonably allocating the optical power, surface shape, material, central thickness of each lens, and axial distance between each lens, the incident light can be effectively converged, the total optical length of the imaging lens can be reduced, and the processability of the imaging lens can be improved, so that the optical system assembly is more conducive to production and processing. In the optical system assembly according to the above-mentioned embodiments of the present application, by arranging the bearing between adjacent lenses and designing the inner and outer diameters of the bearing according to the light path, stray light can be effectively shielded and eliminated, and the imaging quality of the lens can be improved.

[0065] In the embodiments of the present application, at least one of the lens surfaces of each lens is a non-spherical lens surface, that is, at least one of the object side surface of the first lens to the image side surface of the sixth lens is a non-spherical lens surface. The non-spherical lens has the characteristic that the curvature continuously changes from the center of the lens to the periphery of the lens. Unlike the spherical lens having a constant curvature from the center of the lens to the periphery of the lens, the non-spherical lens has better curvature radius characteristics and has the advantages of improving distortion aberration and improving astigmatism aberration. After using the non-spherical lens, the aberration that occurs during imaging can be eliminated as much as possible, thereby improving the imaging quality. Optionally, at least one of the object side surface and the image side surface of each of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, and the sixth lens is a non-spherical lens surface. Optionally, the object side surface and the image side surface of each of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, and the sixth lens are non-spherical lens surfaces.

[0066] However, those skilled in the art will appreciate that the number of lenses making up the optical system assembly can be varied without departing from the technical solutions claimed in the present application, to obtain the various results and advantages described in the present specification. For example, although described in the embodiments by way of example with six lenses, the optical system assembly is not limited to including six lenses. If necessary, the optical system assembly can also include other numbers of lenses.

[0067] Specific embodiments of the optical system assembly applicable to the above-described embodiments are further described below with reference to the accompanying drawings.

[0068] Figure 1

[0069] The following refers to Figure 1 An optical system assembly according to Embodiment 1 of the present application is described. Figure 1 An optical system assembly of Embodiment 1 is shown.

[0070] As Figure 1 shown, the optical system assembly includes, in order from the object side to the image side: a first lens E1, a second lens E2, a stop STO (not shown), a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter (not shown), and an imaging plane (not shown).

[0071] The first lens E1 has a positive sign of optical power, with a concave object side surface S1 and a convex image side surface S2. The second lens E2 has a negative sign of optical power, with a convex object side surface S3 and a concave image side surface S4. The third lens E3 has a positive sign of optical power, with a convex object side surface S5 and a convex image side surface S6. The fourth lens E4 has a negative sign of optical power, with a concave object side surface S7 and a convex image side surface S8. The fifth lens E5 has a positive sign of optical power, with a concave object side surface S9 and a convex image side surface S10. The sixth lens E6 has a positive sign of optical power, with a convex object side surface S11 and a concave image side surface S12. The filter has an object side surface S13 and an image side surface S14. Light from the object passes through the surfaces S1 to S14 in order and is ultimately imaged on the imaging plane S15.

[0072] Table 1 shows a table of basic parameters of the optical system assembly of Embodiment 1, where the units of the radius of curvature, thickness / distance, and focal length are all millimeters (mm).

[0073]

[0074] Table 1

[0075] In the present example, the total effective focal length f of the optical system assembly is 3.85 mm, the half of the maximum field of view angle Semi-FOV of the optical system assembly is 52.50°, the distance Yc51 between the inflection point on the object side of the fifth lens close to the optical axis and the intersection between the object side of the fifth lens and the optical axis in the direction perpendicular to the optical axis is 0.45 mm, the combined focal length f456 of the fourth lens, the fifth lens and the sixth lens is -44.33 mm, the maximum effective radius DT12 of the image side of the first lens is 1.68 mm, and the maximum effective radius DT21 of the object side of the second lens is 1.24 mm.

[0076] As shown in Parameter , the optical system assembly can include five abutments, i.e., the first abutment P1, the second abutment P2, the third abutment P3, the fourth abutment P4 and the fifth abutment P5. The lens barrel P0 can accommodate the first lens E1 to the sixth lens E6 and the first abutment P1 to the fifth abutment P5.

[0077] Table 2 shows a basic parameter table of each abutment in the optical system assembly of Example 1, wherein the unit of each parameter is millimeter (mm).

[0078] D1s D3s d4s EP01 EP23 EP45 CP5 SAGH32 L D2s Value Surface number 5.2000 4.2200 3.7828 0.7400 0.5760 0.8618 0.4289 5.9000 -0.4164 4.0300

[0079] Table 2

[0080] It should be understood that in the present example, the structures and parameters of each abutment are exemplarily listed, and the specific structures and actual parameters of each abutment are not explicitly limited. In actual production, the specific structures and actual parameters of each abutment can be set by any suitable manner.

[0081] In Example 1, the object side and the image side of any one of the first lens E1 to the sixth lens E6 are aspherical surfaces, and the surface type x of each aspherical lens can be defined by, but not limited to, the following aspherical surface formula:

[0082]

[0083] wherein x is the distance sag of the aspherical surface from the vertex of the aspherical surface at a position with a height of h along the optical axis direction; c is the paraxial curvature of the aspherical surface, c = 1 / R (i.e., the paraxial curvature c is the inverse of the curvature radius R in Table 1 above); k is the conic coefficient; and Ai is the correction coefficient of the i-th order of the aspherical surface. The higher order coefficients A4, A6, A8, A10, A12 of the aspherical surfaces S1-S12 that can be used in Example 1 are given in Tables 3-1 and 3-2 below. 10 12 14 16 18 20 22 ​​​​​​A 24 A 26 A 28 and A 30 .

[0084] Surface number A4 A6 A8 A10 A12 A14 A16 S1 4.9741E-01 -2.5065E-02 1.4124E-02 -1.3529E-03 9.7327E-04 -1.3788E-04 -3.5979E-05 S2 4.5457E-01 -5.9679E-02 2.0077E-02 -6.6450E-03 2.9890E-03 -1.4317E-03 6.1004E-04 S3 -8.8292E-02 -1.5983E-02 6.2865E-03 -1.1670E-03 6.1379E-04 -2.9541E-04 9.8980E-05 S4 -1.9433E-02 2.5545E-03 9.9915E-04 3.6348E-04 1.0574E-04 1.2291E-05 1.5132E-05 S5 -2.7300E-02 -1.8884E-03 7.2412E-05 1.2047E-04 6.2494E-06 1.6125E-05 -1.8565E-06 S6 -1.0914E-01 -8.0434E-03 -8.9179E-04 7.8916E-05 1.2865E-04 6.8287E-05 4.8549E-05 S7 -1.0807E-01 1.1065E-01 -4.1874E-03 -4.8570E-03 1.4777E-03 -4.0099E-04 2.8474E-04 S8 -1.9645E-01 1.0191E-01 2.1166E-02 -1.9790E-02 6.2529E-03 -2.3484E-03 9.1612E-04 S9 1.5633E-01 -3.1945E-01 1.4353E-01 -3.0264E-02 2.4782E-02 -1.2969E-02 1.2505E-03 S10 1.5550E+00 -3.2116E-01 1.5569E-01 -3.6509E-03 4.1079E-04 4.6924E-03 -7.8714E-03 S11 -2.3413E+00 5.7942E-01 -1.5332E-01 1.2486E-02 1.9734E-02 -1.1758E-02 3.9731E-03 S12 -1.0094E+01 1.9741E+00 -7.2184E-01 2.1438E-01 -1.0667E-01 4.4407E-02 -2.4116E-02

[0085] Table 3-1

[0086] Example 2 A18 A20 A22 A24 A26 A28 A30 S1 -3.4060E-05 -5.5807E-05 -1.2583E-05 -3.2627E-05 1.9326E-06 -5.5725E-06 8.9490E-06 S2 -3.7568E-04 1.5298E-04 -1.0762E-04 4.7817E-05 -2.0390E-05 1.7671E-05 -4.8099E-06 S3 -4.9477E-05 1.8359E-05 -5.7402E-06 2.8296E-06 1.8879E-06 -5.2563E-06 1.9390E-06 S4 -1.9678E-06 6.7533E-06 2.5386E-07 1.6034E-06 -4.0376E-06 -1.1294E-07 3.6873E-07 S5 7.6792E-06 -5.0026E-06 1.7233E-06 -2.3017E-06 2.0435E-06 -1.9049E-06 6.0611E-07 S6 1.0753E-05 1.4692E-05 4.3392E-06 2.5012E-06 -8.1222E-07 -1.9732E-06 3.4999E-07 S7 -1.3612E-04 2.8876E-05 -1.3704E-05 1.7338E-05 -4.1674E-06 2.6008E-06 -2.9760E-06 S8 -3.0126E-04 1.1268E-04 -5.0306E-05 7.8472E-06 1.0891E-05 -6.5131E-06 9.7131E-07 S9 -1.9969E-03 1.3594E-03 -1.3291E-04 1.7532E-04 -1.1670E-04 3.6382E-06 4.1553E-06 S10 4.6494E-03 -1.5329E-03 3.3770E-04 1.2267E-05 -1.6141E-04 1.5955E-04 -3.6619E-05 S11 1.9393E-03 -3.2490E-03 7.9941E-04 6.7689E-04 -6.5988E-04 2.8113E-04 -5.0602E-05 S12 1.5118E-02 -6.2704E-03 3.6522E-03 -1.4793E-03 8.4732E-04 -5.0740E-04 2.0823E-04

[0087] Table 3-2

[0088] Figure 2

[0089] The optical system assembly according to Embodiment 2 is described below with reference to Figure 2 In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Figure 2 The optical system assembly of Embodiment 2 is shown.

[0090] As shown in FIG. 2, the optical system assembly comprises, in order from the object side to the image side: a first lens E1, a second lens E2, a stop STO (not shown), a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter (not shown), and an imaging surface (not shown). Figure 2 In this example, the structures and parameters of the first lens E1, the second lens E2, the stop STO, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, the filter, and the imaging surface can be the same as those in Embodiment 1. Therefore, the basic parameter table of the optical system assembly of this example is exactly the same as the basic parameter table shown in Table 1 in Embodiment 1, and for the sake of brevity, this example will not be described in detail, and the specific content can be referred to the related disclosure in Embodiment 1.

[0091] In this example, the high-order term coefficients of the aspherical mirrors S1-S12 can be the same as those shown in Tables 3-1 and 3-2 in Embodiment 1. Therefore, for the sake of brevity, the high-order term coefficients of the aspherical mirrors S1-S12 will not be described in detail in this example, and the specific content can be referred to the related disclosure in Embodiment 1.

[0092]

[0093] ​In the present example, the values of the optical technical parameters f, Semi-FOV, Yc51, f456, DT12 and DT21 can be the same as the values of f, Semi-FOV, Yc51, f456, DT12 and DT21 in Embodiment 1. Therefore, to avoid redundancy, the present example does not introduce the values of these parameters in detail, and the specific values can be found in the related disclosure of Embodiment 1.

[0094] As shown in Parameter , the optical system assembly can include five abutments, i.e., a first abutment P1, a second abutment P2, a third abutment P3, a fourth abutment P4 and a fifth abutment P5. The lens barrel P0 can accommodate the first to sixth lenses E1-E6 and the first to fifth abutments P1-P5.

[0095] Table 4 shows a table of basic parameters of each abutment in the optical system assembly of Embodiment 2, wherein the unit of each parameter is millimeter (mm).

[0096] D1s D3s d4s EP01 EP23 EP45 CP5 SAGH32 L D2s Value Example 3 4.0300 5.4000 3.7828 0.7400 0.5760 0.8618 0.4289 5.8800 -0.4664 4.0300

[0097] Table 4

[0098] It should be understood that in the present example, only the structures and parameters of each abutment are exemplarily listed, and the specific structures and actual parameters of each abutment are not explicitly limited. In actual production, the specific structures and actual parameters of each abutment can be set by any suitable means.

[0099] Figure 3

[0100] The optical system assembly according to Embodiment 3 of the present application is described below with reference to Figure 3 . Figure 3 The optical system assembly of Embodiment 3 is shown in .

[0101] As shown in Figure 3 , the optical system assembly includes, in order from the object side to the image side: the first lens E1, the second lens E2, the stop STO (not shown), the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, the filter (not shown) and the imaging surface (not shown).

[0102] In this example, the structures and parameters of the first lens E1, the second lens E2, the aperture STO, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, the filter, and the imaging surface are the same as those in Embodiment 1. Therefore, the basic parameter table of the optical system components in this example is exactly the same as the basic parameters shown in Table 1 of Embodiment 1. To avoid redundancy, this example will not describe them in detail; please refer to the relevant content disclosed in Embodiment 1 for details.

[0103] In this example, the higher-order coefficients of each aspherical mirror S1-S12 can be the same as those shown in Tables 3-1 and 3-2 of Example 1. Therefore, to avoid redundancy, this example will not describe the higher-order coefficients of each aspherical mirror S1-S12 in detail; please refer to the relevant content disclosed in Example 1 for details.

[0104] In this example, the values ​​of the optical technical parameters f, Semi-FOV, Yc51, f456, DT12, and DT21 can be the same as those in Example 1. Therefore, to avoid redundancy, this example will not describe the values ​​of these parameters in detail; please refer to the relevant content disclosed in Example 1 for details.

[0105] like Parameter As shown, the optical system assembly may include five support members: a first support member P1, a second support member P2, a third support member P3, a fourth support member P4, and a fifth support member P5. The lens barrel P0 can accommodate the first lens E1 to the sixth lens E6 and the first support members P1 to the fifth support members P5.

[0106] Table 5 shows the basic parameters of each support component in the optical system assembly of Embodiment 3, wherein the unit of each parameter is millimeters (mm).

[0107] D1s D3s d4s EP01 EP23 EP45 CP5 SAGH32 L D2s Value Figure 4A 5.2000 4.2200 3.7828 0.7400 0.5760 0.6358 0.5582 5.9000 -0.4164 4.0300

[0108] Table 5

[0109] It should be understood that this example only illustrates the structure and parameters of each support component, and does not explicitly define the specific structure and actual parameters of each support component. In actual production, the specific structure and actual parameters of each support component can be set in any suitable manner.

[0110] Figure 4B The on-axis chromatic aberration curves of the optical system components of Examples 1 to 3 are shown, which represent the deflection of the focal point of light of different wavelengths after passing through the system.Figure 4C Astigmatism curves of the optical system assembly of Embodiment 1 to Embodiment 3 are shown, which represent the meridional image curvature and sagittal image curvature. Figure 4D Distortion curves of the optical system assembly of Embodiment 1 to Embodiment 3 are shown, which represent the distortion size values corresponding to different field angles. Figures 4A to 4D Magnification chromatism curves of the optical system assembly of Embodiment 1 to Embodiment 3 are shown, which represent the deviation of different image heights of light rays after passing through the system on the imaging plane. According to Example 4 It can be seen that the optical system assemblies given in Embodiment 1 to Embodiment 3 can achieve good imaging quality.

[0111] Figure 5

[0112] The following refers to Figure 5 An optical system assembly according to Embodiment 4 of the present application is described. Figure 5 An optical system assembly of Embodiment 4 is shown.

[0113] As Figure 5 shown, the optical system assembly comprises, in order from the object side to the image side: a first lens E1, a second lens E2, a stop STO (not shown), a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter (not shown), and an imaging plane (not shown).

[0114] The first lens E1 has a positive refractive power, and its object side surface S1 is a concave surface and its image side surface S2 is a convex surface. The second lens E2 has a negative refractive power, and its object side surface S3 is a convex surface and its image side surface S4 is a concave surface. The third lens E3 has a positive refractive power, and its object side surface S5 is a convex surface and its image side surface S6 is a convex surface. The fourth lens E4 has a negative refractive power, and its object side surface S7 is a concave surface and its image side surface S8 is a convex surface. The fifth lens E5 has a positive refractive power, and its object side surface S9 is a concave surface and its image side surface S10 is a convex surface. The sixth lens E6 has a positive refractive power, and its object side surface S11 is a convex surface and its image side surface S12 is a concave surface. The filter has an object side surface S13 and an image side surface S14. Light from the object passes through the surfaces S1 to S14 in order and is finally imaged on the imaging plane S15.

[0115] Table 6 shows a basic parameter table of the optical system assembly of Embodiment 4, wherein the units of the curvature radius, thickness / distance, and focal length are all millimeters (mm).

[0116]

[0117] Table 6

[0118] In this example, the total effective focal length f of the optical system components is 3.45 mm, half of the maximum field of view (Semi-FOV) of the optical system components is 55.50°, the distance Yc51 between the inflection point near the optical axis on the object side of the fifth lens and the intersection of the object side of the fifth lens and the optical axis in a direction perpendicular to the optical axis is 0.47 mm, the combined focal length f456 of the fourth, fifth, and sixth lenses is -44.92 mm, the maximum effective radius DT12 of the image side of the first lens is 1.75 mm, and the maximum effective radius DT21 of the object side of the second lens is 1.20 mm.

[0119] like Parameter As shown, the optical system assembly may include five support members: a first support member P1, a second support member P2, a third support member P3, a fourth support member P4, and a fifth support member P5. The lens barrel P0 can accommodate the first lens E1 to the sixth lens E6 and the first support members P1 to the fifth support members P5.

[0120] Table 7 shows the basic parameters of each support component in the optical system assembly of Embodiment 4, wherein the unit of each parameter is millimeters (mm).

[0121] D1s D3s d4s EP01 EP23 EP45 CP5 SAGH32 L D2s Value Surface number 6.0000 6.3000 3.5228 1.0675 0.6060 0.8618 0.4289 6.0500 -0.3845 4.8300

[0122] Table 7

[0123] It should be understood that this example only illustrates the structure and parameters of each support component, and does not explicitly define the specific structure and actual parameters of each support component. In actual production, the specific structure and actual parameters of each support component can be set in any suitable manner.

[0124] Tables 8-1 and 8-2 below give the higher-order coefficients that can be used for each aspherical mirror S1-S12 in Example 4.

[0125] Surface number A4 A6 A8 A10 A12 A14 A16 S1 6.0813E-01 -5.0199E-02 1.7322E-02 -3.1589E-03 1.2985E-03 -3.4081E-04 1.2175E-04 S2 4.9886E-01 -7.4835E-02 2.0123E-02 -5.9983E-03 2.3801E-03 -9.8302E-04 4.2502E-04 S3 -8.4604E-02 -2.1610E-02 6.4231E-03 -4.2611E-04 2.1780E-04 -1.6918E-04 4.4256E-05 S4 -2.3441E-02 1.9081E-03 1.9728E-03 5.0083E-04 1.3324E-04 2.8146E-05 1.6599E-05 S5 -2.1924E-02 -1.5599E-03 1.2352E-04 7.7409E-05 5.5003E-06 3.6605E-06 -7.2723E-06 S6 -8.1817E-02 -3.5298E-03 3.6701E-04 2.8018E-04 1.3015E-04 3.4258E-05 2.4309E-05 S7 -1.7055E-01 7.2448E-02 3.5229E-03 -5.1283E-03 6.3052E-04 -2.8211E-04 1.4412E-04 S8 -1.9974E-01 9.6056E-02 2.1594E-02 -2.0568E-02 5.3537E-03 -1.5891E-03 8.3329E-04 S9 5.1223E-02 -2.9501E-01 1.8869E-01 -3.4965E-02 1.9792E-02 -1.9582E-02 1.9720E-03 S10 1.5899E+00 -2.7614E-01 1.9364E-01 -1.5223E-02 4.8807E-03 4.6684E-03 -7.1653E-03 S11 -2.3915E+00 7.3792E-01 -2.1408E-01 1.4958E-02 2.3364E-02 -1.5702E-02 6.8096E-03 S12 -9.5203E+00 1.9213E+00 -6.2673E-01 1.9555E-01 -9.2594E-02 3.9850E-02 -2.0080E-02

[0126] Table 8-1

[0127] Example 5 A18 A20 A22 A24 A26 A28 A30 S1 -3.3388E-05 1.3488E-05 -9.2327E-06 -2.0403E-06 -1.5757E-05 5.1309E-06 5.2594E-06 S2 -1.8672E-04 9.3254E-05 -5.0371E-05 1.4442E-05 -2.1720E-05 1.7255E-05 -3.7141E-06 S3 -1.1332E-05 4.4302E-06 -5.7681E-06 -6.2176E-07 -5.2897E-07 5.3859E-07 2.5722E-07 S4 5.0130E-06 1.6470E-07 5.9603E-07 -3.8552E-07 -1.5123E-06 -2.3009E-06 9.1203E-07 S5 2.6345E-06 2.4460E-07 4.6415E-06 -4.7078E-07 -5.3994E-07 -2.8582E-06 1.2143E-06 S6 -1.8023E-06 3.5463E-06 -7.1508E-07 2.2748E-06 -1.6293E-06 4.8270E-07 -2.0088E-07 S7 -1.0858E-04 1.0901E-05 -2.3837E-05 -9.1692E-06 -1.9765E-07 -7.2521E-06 7.4347E-06 S8 -4.7082E-04 2.0303E-04 -1.0597E-04 4.7677E-05 -7.0432E-06 -1.1032E-06 2.8666E-07 S9 1.1891E-06 2.3578E-03 -6.9005E-04 -4.9777E-05 -2.4602E-04 1.6441E-04 -2.4466E-05 S10 6.1227E-03 -1.9656E-03 -3.9785E-04 -1.3991E-04 -1.2456E-04 4.1175E-04 -9.8307E-05 S11 1.1307E-03 -4.0254E-03 2.3346E-03 -9.9006E-05 -9.5754E-04 6.8594E-04 -1.5284E-04 S12 1.4617E-02 -5.9968E-03 3.1697E-03 -1.3467E-03 7.8603E-04 -4.5191E-04 1.3381E-04

[0128] Table 8-2

[0129] Figure 6

[0130] The following is for reference Figure 6 Describes an optical system component according to Embodiment 5 of this application. Figure 6 The optical system components of Embodiment 5 are shown.

[0131] like Figure 6As shown, the optical system components, from the object side to the image side, include, in sequence: a first lens E1, a second lens E2, an aperture stop STO (not shown), a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter (not shown), and an imaging plane (not shown).

[0132] In this example, the structures and parameters of the first lens E1, the second lens E2, the aperture STO, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, the filter, and the imaging surface are the same as those in Embodiment 4. Therefore, the basic parameter table of the optical system components in this example is exactly the same as the basic parameters shown in Table 6 of Embodiment 4. To avoid redundancy, this example will not describe them in detail; please refer to the relevant content disclosed in Embodiment 4 for details.

[0133] In this example, the higher-order coefficients of each aspherical mirror S1-S12 can be the same as those shown in Tables 8-1 and 8-2 of Example 4. Therefore, to avoid redundancy, this example will not describe the higher-order coefficients of each aspherical mirror S1-S12 in detail; please refer to the relevant content disclosed in Example 4 for details.

[0134] In this example, the values ​​of the optical technical parameters f, Semi-FOV, Yc51, f456, DT12, and DT21 can be the same as those in Example 4. Therefore, to avoid redundancy, this example will not describe the values ​​of these parameters in detail; please refer to the relevant content disclosed in Example 4 for details.

[0135] like Parameter As shown, the optical system assembly may include five support members: a first support member P1, a second support member P2, a third support member P3, a fourth support member P4, and a fifth support member P5. The lens barrel P0 can accommodate the first lens E1 to the sixth lens E6 and the first support members P1 to the fifth support members P5.

[0136] Table 9 shows the basic parameters of each support component in the optical system assembly of Embodiment 5, wherein the unit of each parameter is millimeters (mm).

[0137] D1s D3s d4s EP01 EP23 EP45 CP5 SAGH32 L D2s Value Example 6 6.0000 6.3000 3.5228 1.0675 0.6060 0.8618 0.4289 6.0819 -0.3845 4.8300

[0138] Table 9

[0139] It should be understood that the structures and parameters of the abutting members are exemplarily listed in the present example, and the specific structures and actual parameters of the abutting members are not explicitly limited. The specific structures and actual parameters of the abutting members can be set in any suitable manner in actual production.

[0140] Figure 7

[0141] The optical system assembly according to Embodiment 6 of the present application is described below with reference to Figure 7 The optical system assembly of Embodiment 6 is shown. Figure 7 The optical system assembly of Embodiment 6 is shown.

[0142] As shown in Figure 7 the optical system assembly comprises, in order from the object side to the image side: a first lens E1, a second lens E2, a stop STO (not shown), a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter (not shown), and an imaging surface (not shown).

[0143] In the present example, the structures and parameters of the first lens E1, the second lens E2, the stop STO, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, the filter, and the imaging surface can be the same as those of the first lens E1, the second lens E2, the stop STO, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, the filter, and the imaging surface in Embodiment 4. Therefore, the basic parameter table of the optical system assembly of the present example is exactly the same as the basic parameter table shown in Table 6 in Embodiment 4, and the present example will not be described in detail to avoid redundancy, and the relevant content can be referred to Embodiment 4.

[0144] In the present example, the high-order term coefficients of the aspherical mirrors S1-S12 can be the same as those of the aspherical mirrors S1-S12 shown in Tables 8-1 and 8-2 in Embodiment 4. Therefore, to avoid redundancy, the high-order term coefficients of the aspherical mirrors S1-S12 will not be described in detail in the present example, and the relevant content can be referred to Embodiment 4.

[0145] In the present example, the values of the optical technical parameters f, Semi-FOV, Yc51, f456, DT12, and DT21 can be the same as those of f, Semi-FOV, Yc51, f456, DT12, and DT21 in Embodiment 4. Therefore, to avoid redundancy, the values of these parameters will not be described in detail in the present example, and the relevant content can be referred to Embodiment 4.

[0146] As shown in ParameterAs shown, the optical system assembly can include five abutments, i.e., a first abutment P1, a second abutment P2, a third abutment P3, a fourth abutment P4 and a fifth abutment P5. The lens barrel P0 can accommodate the first lens E1 to the sixth lens E6 and the first abutment P1 to the fifth abutment P5.

[0147] Table 10 shows a basic parameter table of each abutment in the optical system assembly of Example 6, wherein the unit of each parameter is millimeter (mm).

[0148] D1s D3s d4s EP01 EP23 EP45 CP5 SAGH32 L D2s Value Figure 8A 4.8300 6.3000 3.5228 1.0675 0.6060 0.8618 0.0220 6.1242 -0.3845 4.5300

[0149] Table 10

[0150] It should be understood that, in the present example, the structure and parameters of each abutment are only exemplarily listed, and the specific structure and actual parameters of each abutment are not explicitly limited. The specific structure and actual parameters of each abutment can be set by any suitable manner in actual production.

[0151] Figure 8B The on-axis chromatic aberration curves of the optical system assemblies of Examples 4 to 6 are shown, which represent the deviation of light rays of different wavelengths after passing through the system. Figure 8C The astigmatism curves of the optical system assemblies of Examples 4 to 6 are shown, which represent the meridional image curvature and sagittal image curvature. Figure 8D The distortion curves of the optical system assemblies of Examples 4 to 6 are shown, which represent the distortion size values corresponding to different field angles. Figures 8A to 8D The lateral chromatic aberration curves of the optical system assemblies of Examples 4 to 6 are shown, which represent the deviation of different image heights of light rays on the imaging plane after passing through the system. According to the formula: Example 7 It can be known that the optical system assemblies given in Examples 4 to 6 can achieve good imaging quality.

[0152] Figure 9

[0153] The following refers to Figure 9 An optical system assembly according to Example 7 of the present application is described. Figure 9 The optical system assembly of Example 7 is shown.

[0154] As Figure 9 shown, the optical system assembly sequentially includes, from the object side to the image side: the first lens E1, the second lens E2, the stop STO (not shown), the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, the filter (not shown) and the imaging plane (not shown).

[0155] The first lens E1 has a positive optical power sign, its object-side surface S1 is concave, and its image-side surface S2 is convex. The second lens E2 has a negative optical power sign, its object-side surface S3 is convex, and its image-side surface S4 is concave. The third lens E3 has a positive optical power sign, its object-side surface S5 is convex, and its image-side surface S6 is convex. The fourth lens E4 has a negative optical power sign, its object-side surface S7 is concave, and its image-side surface S8 is convex. The fifth lens E5 has a positive optical power sign, its object-side surface S9 is concave, and its image-side surface S10 is convex. The sixth lens E6 has a positive optical power sign, its object-side surface S11 is convex, and its image-side surface S12 is concave. The filter has an object-side surface S13 and an image-side surface S14. Light from the object passes sequentially through surfaces S1 to S14 and is finally imaged onto the imaging surface S15.

[0156] Table 11 shows the basic parameters of the optical system components of Embodiment 7, where the units for radius of curvature, thickness / distance, and focal length are millimeters (mm).

[0157]

[0158] Table 11

[0159] In this example, the total effective focal length f of the optical system components is 3.46 mm, half of the maximum field of view (Semi-FOV) of the optical system components is 55.50°, the distance Yc51 between the inflection point near the optical axis on the object side of the fifth lens and the intersection of the object side of the fifth lens and the optical axis in a direction perpendicular to the optical axis is 0.48 mm, the combined focal length f456 of the fourth, fifth, and sixth lenses is -28.34 mm, the maximum effective radius DT12 of the image side of the first lens is 1.59 mm, and the maximum effective radius DT21 of the object side of the second lens is 1.12 mm.

[0160] like Parameter As shown, the optical system assembly may include five support members: a first support member P1, a second support member P2, a third support member P3, a fourth support member P4, and a fifth support member P5. The lens barrel P0 can accommodate the first lens E1 to the sixth lens E6 and the first support members P1 to the fifth support members P5.

[0161] Table 12 shows the basic parameters of each support component in the optical system assembly of Embodiment 7, wherein the unit of each parameter is millimeters (mm).

[0162] D1s D3s d4s EP01 EP23 EP45 CP5 SAGH32 L D2s Value Surface number 6.0000 6.3000 3.4800 1.0875 0.6060 0.6409 0.6289 6.3000 -0.3853 4.8300

[0163] Table 12

[0164] It should be understood that the structures and parameters of the abutting members are exemplarily listed in the present example, and the specific structures and actual parameters of the abutting members are not explicitly limited. The specific structures and actual parameters of the abutting members can be set in any suitable manner in actual production.

[0165] The following Tables 13-1 and 13-2 show the high-order term coefficients of the aspherical mirrors S1-S12 used in Example 7.

[0166] Surface number A4 A6 A8 A10 A12 A14 A16 S1 4.2248E-01 -4.2019E-02 9.2367E-03 -2.5989E-03 6.0545E-04 -2.8116E-04 3.2124E-05 S2 3.8154E-01 -5.6560E-02 1.4028E-02 -4.6560E-03 1.6865E-03 -7.6366E-04 2.8457E-04 S3 -4.6708E-02 -1.6413E-02 3.9777E-03 -4.0943E-04 2.4083E-04 -1.2975E-04 2.3991E-05 S4 -1.6943E-02 1.3323E-03 1.0623E-03 2.5432E-04 4.6432E-05 -1.0436E-05 -6.7869E-06 S5 -2.1789E-02 -1.7107E-03 1.6645E-05 4.1093E-05 9.2639E-06 3.6838E-07 -2.4193E-06 S6 -9.5204E-02 -6.1800E-03 -5.2225E-04 4.1119E-05 7.3956E-05 1.4285E-05 9.6813E-06 S7 -1.4323E-01 5.4394E-02 2.1418E-03 -2.7291E-03 -1.6126E-05 -1.1012E-04 -1.1682E-07 S8 -1.8689E-01 9.6567E-02 2.0095E-02 -1.8514E-02 3.8863E-03 -1.1875E-03 5.1832E-04 S9 3.8862E-02 -3.0384E-01 1.7680E-01 -3.5299E-02 2.0734E-02 -1.6858E-02 1.1706E-03 S10 1.4811E+00 -2.8902E-01 1.8273E-01 -1.8777E-02 7.4447E-03 2.9519E-03 -5.6771E-03 S11 -2.3659E+00 7.4552E-01 -2.2166E-01 1.0809E-02 2.1213E-02 -1.6314E-02 4.3620E-03 S12 -9.5569E+00 2.0208E+00 -6.5271E-01 2.0374E-01 -9.2603E-02 3.9695E-02 -2.2731E-02

[0167] Table 13-1

[0168] Example 8 A18 A20 A22 A24 A26 A28 A30 S1 -2.9064E-05 2.3098E-06 -3.6319E-06 8.3910E-06 6.9525E-07 -4.2392E-06 -1.0925E-06 S2 -1.4791E-04 5.8943E-05 -2.8748E-05 2.3395E-05 -1.1121E-05 2.5547E-06 -2.1977E-07 S3 -1.4039E-05 5.1615E-06 -2.3951E-06 -1.1651E-06 -2.8328E-06 4.2940E-07 7.0092E-07 S4 -4.8821E-06 -2.5656E-06 -6.5414E-08 -2.2756E-07 9.6658E-07 -9.4532E-07 2.2566E-07 S5 1.5097E-07 9.4357E-07 1.2158E-06 -8.1885E-07 -1.3136E-07 5.7888E-08 1.1915E-08 S6 -8.7225E-06 -8.6353E-07 -3.1608E-06 2.2110E-06 -1.6507E-07 1.8673E-06 -7.0288E-07 S7 -5.3620E-05 -1.7172E-05 5.8618E-06 -8.9817E-06 1.7179E-06 -3.3732E-06 3.2715E-06 S8 -2.4270E-04 8.5294E-05 -1.7756E-05 2.1170E-05 1.3330E-06 -7.0652E-06 1.4709E-06 S9 4.1496E-05 1.9482E-03 -4.7349E-04 -3.4534E-05 -2.0065E-04 1.0150E-04 -9.1689E-06 S10 5.6942E-03 -1.4626E-03 -3.8727E-04 -4.3276E-05 -7.4240E-05 3.3137E-04 -8.4675E-05 S11 2.2306E-03 -3.1190E-03 1.9207E-03 9.1608E-06 -7.3698E-04 5.3583E-04 -1.4180E-04 S12 1.1817E-02 -6.2145E-03 3.5064E-03 -1.4443E-03 8.2614E-04 -4.9644E-04 1.8431E-04

[0169] Table 13-2

[0170] Figure 10

[0171] The following refers to Figure 10 An optical system assembly according to Example 8 of the present application is described. Figure 10 An optical system assembly of Example 8 is shown.

[0172] As Figure 10 shown, the optical system assembly comprises, in order from the object side to the image side: a first lens E1, a second lens E2, a stop STO (not shown), a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter (not shown), and an imaging plane (not shown).

[0173] In the present example, the structures and parameters of the first lens E1, the second lens E2, the stop STO, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, the filter, and the imaging plane can be the same as those of the first lens E1, the second lens E2, the stop STO, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, the filter, and the imaging plane in Example 7. Therefore, the basic parameter table of the optical system assembly of the present example is exactly the same as the basic parameter table shown in Table 11 of Example 7, and the present example will not be described in detail to avoid redundancy, and the specific content can be referred to the related disclosure of Example 7.

[0174] In the present example, the high-order term coefficients of the aspherical mirrors S1-S12 can be the same as those of the aspherical mirrors S1-S12 shown in Tables 13-1 and 13-2 of Example 7. Therefore, to avoid redundancy, the high-order term coefficients of the aspherical mirrors S1-S12 will not be described in detail in the present example, and the specific content can be referred to the related disclosure of Example 7.

[0175] In the present example, the values of the optical technical parameters f, Semi-FOV, Yc51, f456, DT12 and DT21 can be the same as the values of f, Semi-FOV, Yc51, f456, DT12 and DT21 in Embodiment 7. Therefore, to avoid redundancy, the present example does not introduce the values of these parameters in detail, and the specific values can be found in the related disclosure of Embodiment 7.

[0176] As shown in Parameter , the optical system assembly can include five abutments, i.e., a first abutment P1, a second abutment P2, a third abutment P3, a fourth abutment P4 and a fifth abutment P5. The lens barrel P0 can accommodate the first to sixth lenses E1-E6 and the first to fifth abutments P1-P5.

[0177] Table 14 shows a table of basic parameters of each abutment in the optical system assembly of Embodiment 8, wherein the unit of each parameter is millimeter (mm).

[0178] D1s D3s d4s EP01 EP23 EP45 CP5 SAGH32 L D2s Value Example 9 5.0300 6.3000 4.1600 1.0875 0.6060 0.5533 0.5289 6.3241 -0.3853 4.8300

[0179] Table 14

[0180] It should be understood that, in the present example, only the structures and parameters of each abutment are exemplarily listed, and the specific structures and actual parameters of each abutment are not explicitly limited. In actual production, the specific structures and actual parameters of each abutment can be set by any suitable manner.

[0181] Figure 11

[0182] The optical system assembly according to Embodiment 9 of the present application is described below with reference to Figure 11 . Figure 11 The optical system assembly of Embodiment 9 is shown in .

[0183] As shown in Figure 11 , the optical system assembly sequentially includes, from the object side to the image side: the first lens E1, the second lens E2, the stop STO (not shown), the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, the filter (not shown) and the imaging surface (not shown).

[0184] In this example, the structures and parameters of the first lens E1, the second lens E2, the aperture STO, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, the filter, and the imaging surface are the same as those in Embodiment 7. Therefore, the basic parameter table of the optical system components in this example is exactly the same as the basic parameters shown in Table 11 of Embodiment 7. To avoid redundancy, this example will not describe them in detail; please refer to the relevant content disclosed in Embodiment 7 for details.

[0185] In this example, the higher-order coefficients of each aspherical mirror S1-S12 can be the same as those shown in Tables 13-1 and 13-2 of Example 7. Therefore, to avoid redundancy, this example will not describe the higher-order coefficients of each aspherical mirror S1-S12 in detail; please refer to the relevant content disclosed in Example 7 for details.

[0186] In this example, the values ​​of the optical technical parameters f, Semi-FOV, Yc51, f456, DT12, and DT21 can be the same as those in Example 7. Therefore, to avoid redundancy, this example will not describe the values ​​of these parameters in detail; please refer to the relevant content disclosed in Example 7 for details.

[0187] like Parameter As shown, the optical system assembly may include five support members: a first support member P1, a second support member P2, a third support member P3, a fourth support member P4, and a fifth support member P5. The lens barrel P0 can accommodate the first lens E1 to the sixth lens E6 and the first support members P1 to the fifth support members P5.

[0188] Table 15 shows the basic parameters of each support component in the optical system assembly of Embodiment 9, wherein the unit of each parameter is millimeters (mm).

[0189] D1s D3s d4s EP01 EP23 EP45 CP5 SAGH32 L D2s Value Figure 12A 5.0300 6.3000 4.1600 1.0875 0.6560 0.5533 0.0180 6.3000 -0.3853 4.8300

[0190] Table 15

[0191] It should be understood that this example only illustrates the structure and parameters of each support component, and does not explicitly define the specific structure and actual parameters of each support component. In actual production, the specific structure and actual parameters of each support component can be set in any suitable manner.

[0192] Figure 12B The on-axis chromatic aberration curves of the optical system components of Embodiments 7 to 9 are shown, which represent the deflection of the focal point of light of different wavelengths after passing through the system.Figure 12C Astigmatism curves of the optical system components of Embodiments 7-9 are shown, which represent the meridional image curvature and sagittal image curvature. Figure 12D Distortion curves of the optical system components of Embodiments 7-9 are shown, which represent the distortion size values corresponding to different field angles. Figures 12A to 12D Lateral chromatic aberration curves of the optical system components of Embodiments 7-9 are shown, which represent the deviation of light rays on the image plane at different image heights after passing through the system. According to Conditional expression / Example It can be seen that the optical system components of Embodiments 7-9 can achieve good imaging quality.

[0193] In summary, Embodiments 1-9 respectively satisfy the relationships shown in Tables 16-1, 16-2 and 16-3.

[0194]

[0195]

[0196] Table 16-1

[0197] Example 4 Example 5 Example 6 L / (f1+f6) CT1 / R1 0.13 0.13 0.13 EP01 / f1 -0.16 -0.16 -0.16 (T23+CT3) / EP23 0.04 0.04 0.04 N1x f1 / R1 1.95 1.95 1.95 (D3s / R6) / (D2s / R5) -11.41 -11.41 -11.41 f / f2 -6.18 -6.18 -6.59 N2x CT2 / EP23 -0.05 -0.05 -0.05 f5 / R9+f5 / R10 1.05 1.05 1.05 f5 / EP45 -8.14 -8.14 -8.14 (CP5+EP45) / CT5 15.28 15.28 15.28 L / ∑CT 1.67 1.67 1.14 f456 / (EP45+CT5+CT6) 1.60 1.61 1.62 (DT12+DT21) / D1s -18.57 -18.57 -18.57 (|SAGH32|+EP23) / T34 0.49 0.49 0.61 (d4s / Yc51) / (R10 / R9) 1.31 1.31 1.31 ​ 10.07 10.07 10.07

[0198] Table 16-2

[0199]

[0200]

[0201] Table 16-3

[0202] The present application also provides an imaging device, the electronic photosensitive element of which can be a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS). The imaging device can be a standalone imaging apparatus such as a digital camera, or an imaging module integrated on a mobile electronic device such as a mobile phone. The imaging device is equipped with the optical system component described above.

[0203] The above description is merely preferred embodiments of the present application and a description of the principles of the technology used. It will be understood by those skilled in the art that the scope of the application involved in the present application is not limited to the technical solutions formed by the specific combinations of the technical features described above, and also covers other technical solutions formed by any combination of the above technical features or equivalent features without departing from the inventive concept. For example, the above features are replaced with technical features disclosed in the present application (but not limited to) having similar functions to form technical solutions.

Claims

1. An optical system assembly, characterized by Comprising: a lens group comprising, in order from an object side to an image side along an optical axis, a first lens having optical power, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens, wherein the first lens, the third lens, the fifth lens, and the sixth lens have positive optical power, the second lens and the fourth lens have negative optical power, the object side surface of the first lens, the fourth lens, and the fifth lens is concave and the image side surface is convex, the object side surface of the second lens and the sixth lens is convex and the image side surface is concave, the object side surface of the third lens is convex and the image side surface is convex, and the number of lenses having optical power in the lens group is six; a plurality of abutting members including a first abutting member located on the image side of the first lens and partially in contact with the image side surface of the first lens; and a lens barrel for accommodating the lens group and the plurality of abutting members; wherein the optical system assembly satisfies 52.50° ≤ Semi-FOV ≤ 55.50°, 0 < EP01 / f1 < 0.07, and 0.10 ≤ L / (f1+f6) ≤ 0.19, where Semi-FOV is half of the maximum field angle of view of the optical system assembly, EP01 is a separation distance in a direction along the optical axis from an object side end of the lens barrel to an object side surface of the first abutting member, f1 is an effective focal length of the first lens, f6 is an effective focal length of the sixth lens, and L is a separation distance in a direction along the optical axis from the object side end of the lens barrel to an image side end of the lens barrel. The optical system assembly satisfies -0.16 ≤ CT1 / R1 ≤ -0.08, where CT1 is a center thickness of the first lens in the optical axis, and R1 is a radius of curvature of the object side surface of the first lens.

2. The optical system assembly of claim 1, wherein, The plurality of abutting members includes a second abutting member located on the image side of the second lens and partially in contact with the image side surface of the second lens, and a third abutting member located on the image side of the third lens and partially in contact with the image side surface of the third lens.

3. The optical system assembly of claim 1, wherein, The optical system assembly satisfies 1.76 ≤ (T23+CT3) / EP23 ≤ 2.14, where T23 is an air separation of the second lens and the third lens in the optical axis, CT3 is a center thickness of the third lens in the optical axis, and EP23 is a separation distance in a direction along the optical axis from the image side surface of the second abutting member to the object side surface of the third abutting member. The optical system assembly satisfies -14.12 ≤ N1×f1 / R1 ≤ -4.10, where N1 is a refractive index of the first lens, and R1 is a radius of curvature of the object side surface of the first lens.

4. The optical system assembly of claim 1, wherein, The plurality of abutting members includes a second abutting member located on the image side of the second lens and partially in contact with the image side surface of the second lens, and a third abutting member located on the image side of the third lens and partially in contact with the image side surface of the third lens, 5. The optical system assembly of claim 1, wherein, ​ The optical system assembly satisfies -8.13≤(D3s / R6) / (D2s / R5)≤-6.18, where D2s is an outer diameter of an object side surface of the second abutting member, D3s is an outer diameter of an object side surface of the third abutting member, R5 is a radius of curvature of an object side surface of the third lens, and R6 is a radius of curvature of an image side surface of the third lens.

6. The optical system assembly of claim 1, wherein, The plurality of abutting members includes a second abutting member located on an image side of the second lens and partially in contact with an image side surface of the second lens, and a third abutting member located on an image side of the third lens and partially in contact with an image side surface of the third lens. The optical system assembly satisfies -0.19≤f / f2<0 and 0.92≤N2×CT2 / EP23≤1.20, where f is a total effective focal length of the optical system assembly, f2 is an effective focal length of the second lens, N2 is a refractive index of the second lens, CT2 is a central thickness of the second lens in the optical axis direction, and EP23 is a separation distance from an image side surface of the second abutting member to an object side surface of the third abutting member in the optical axis direction.

7. The optical system assembly of claim 1, wherein, The plurality of abutting members includes a fourth abutting member located on an image side of the fourth lens and partially in contact with an image side surface of the fourth lens, and a fifth abutting member located on an image side of the fifth lens and partially in contact with an image side surface of the fifth lens. The optical system assembly satisfies -8.75≤f5 / R9+f5 / R10≤-5.49 and 14.75≤f5 / EP45≤21.90, where f5 is an effective focal length of the fifth lens, R9 is a radius of curvature of an object side surface of the fifth lens, R10 is a radius of curvature of an image side surface of the fifth lens, and EP45 is a separation distance from an image side surface of the fourth abutting member to an object side surface of the fifth abutting member in the optical axis direction.

8. The optical system assembly of claim 1, wherein, The plurality of abutting members includes a fourth abutting member located on an image side of the fourth lens and partially in contact with an image side surface of the fourth lens, and a fifth abutting member located on an image side of the fifth lens and partially in contact with an image side surface of the fifth lens. The optical system assembly satisfies 0.76≤(CP5+EP45) / CT5≤1.70, where CP5 is a maximum thickness of the fifth abutting member in the optical axis direction, EP45 is a separation distance from an image side surface of the fourth abutting member to an object side surface of the fifth abutting member in the optical axis direction, and CT5 is a central thickness of the fifth lens in the optical axis.

9. The optical system assembly of any of claims 1-8, wherein, The optical system assembly satisfies 1.59≤L / ∑CT≤1.62, where ∑CT is a sum of central thicknesses of the first lens to the sixth lens in the optical axis.

10. The optical system assembly of any of claims 1-8, wherein, The plurality of abutting members includes a fourth abutting member located on an image side of the fourth lens and partially in contact with an image side surface of the fourth lens, and a fifth abutting member located on an image side of the fifth lens and partially in contact with an image side surface of the fifth lens. The optical system assembly satisfies: -21.14 ≤ f456 / (EP45+CT5+CT6) ≤ -12.99, where f456 is a combined focal length of the fourth lens, the fifth lens, and the sixth lens, EP45 is a separation distance in a direction along the optical axis from an image-side surface of the fourth abutting member to an object-side surface of the fifth abutting member, CT5 is a center thickness of the fifth lens in the optical axis, and CT6 is a center thickness of the sixth lens in the optical axis.

11. The optical system assembly of any of claims 1-8, wherein, The optical system assembly satisfies: 0.45 ≤ (DT12+DT21) / D1s ≤ 0.72, where DT12 is a maximum effective radius of an image-side surface of the first lens, DT21 is a maximum effective radius of an object-side surface of the second lens, and D1s is an outer diameter of an object-side surface of the first abutting member.

12. The optical system assembly of any of claims 1-8, wherein, The plurality of abutting members includes a second abutting member located on an image side of the second lens and partially in contact with an image-side surface of the second lens, and a third abutting member located on an image side of the third lens and partially in contact with an image-side surface of the third lens. The optical system assembly satisfies: 1.31 ≤ (|SAGH32|+EP23) / T34 ≤ 1.56, where SAGH32 is a distance in a direction perpendicular to the optical axis from an intersection of an image-side surface of the third lens and the optical axis to an apex at a maximum radius of the image-side surface of the third lens, EP23 is a separation distance in a direction along the optical axis from an image-side surface of the second abutting member to an object-side surface of the third abutting member, and T34 is an air separation of the third lens and the fourth lens in the optical axis.

13. The optical system assembly of any of claims 1-8, wherein, The plurality of abutting members includes a fourth abutting member located on an image side of the fourth lens and partially in contact with an image-side surface of the fourth lens, and an object-side surface of the fifth lens has at least one inflection point, The optical system assembly satisfies: 10.07 ≤ (d4s / Yc51) / (R10 / R9) ≤ 13.85, where d4s is an inner diameter of an object-side surface of the fourth abutting member, Yc51 is a distance in a direction perpendicular to the optical axis from an inflection point of the object-side surface of the fifth lens close to the optical axis to an intersection of the object-side surface of the fifth lens and the optical axis, R9 is a radius of curvature of the object-side surface of the fifth lens, and R10 is a radius of curvature of an image-side surface of the fifth lens.

14. The optical system assembly according to any one of claims 1-8, the plurality of abutting members further comprising: a third abutting member located on an image side of the third lens and partially in contact with an image-side surface of the third lens; a fourth abutting member located on an image side of the fourth lens and partially in contact with an image-side surface of the fourth lens; a fifth abutting member located on an image side of the fifth lens and partially in contact with an image-side surface of the fifth lens; and at least one auxiliary abutting member located on an image side of at least one of the third abutting member, the fourth abutting member, and the fifth abutting member and partially in contact with an image-side surface of the at least one abutting member. A maximum diameter of the first lens is smaller than a maximum diameter of the sixth lens.

15. The optical system assembly of any of claims 1-8, wherein, ​

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