Optical imaging lens

Abstract

The utility model relates to an optical imaging lens, comprising a first optical assembly comprising a first lens cone and a first lens group arranged on the first lens cone; the second optical assembly is arranged on the image side of the first optical assembly, and the second optical assembly comprises a second lens cone and a second lens group arranged on the second lens cone; the first optical assembly or the second optical assembly is adjustably arranged on the object side of the reflection assembly; the optical imaging lens satisfies the following relational expressions: 1.3 lt; oDn / d02slt; 2.0); 1.1 lt; 1.1 lt; d < 01m > / D < 02slt >; 1.5 parts; according to the optical imaging lens, the requirement for long focal length can be met, it can be guaranteed that the size of the lens is small, the performance in the microspur process can be improved, the second lens can extend into the first lens cone and does not collide with the lens in the first lens cone, and the second lens cone can be prevented from colliding with the reflection assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of optical elements, in particular to an optical imaging lens. Background Art

[0002] With the development of the high-performance, high-quality and ultra-thin trends of mobile phones, higher requirements are also put forward for mobile phone imaging technology, and the proportion of the use of telephoto lenses in mobile phone imaging is also increasing. Generally, the focal length of a telephoto lens increases with the increase of the lens and the volume of its imaging module, resulting in an increase in the volume of the mobile phone.

[0003] Currently, existing telephoto lenses generally include multiple groups of lenses. Through the cooperation of multiple groups of lenses, a longer focal length is obtained. Combining with the need to switch the object distance of the lens, some telephoto lenses will also separately arrange the lenses in multiple lens barrels, and realize the object distance switching by adjusting the movement of the lens barrels. However, the design of the multiple lens barrel structure is likely to cause an increase in the volume of the telephoto lens, which is not conducive to the thinness and lightness of the mobile phone and is prone to problems during the lens assembly process. In addition, there are also some telephoto lenses that use reflecting prisms to fold the optical path to meet the requirements of the small volume of the mobile phone, further resulting in an increase in the volume of the mobile phone, which is not conducive to the miniaturization of the mobile phone. Summary of the Utility Model

[0004] Based on this, it is necessary to provide an optical imaging lens for the problem that the volume of the multi-lens barrel structure of the existing mobile phone telephoto lens is relatively large and cannot meet the requirements of the small volume of the mobile phone.

[0005] An optical imaging lens, comprising:

[0006] A first optical component, the first optical component includes a first lens barrel and a first lens group arranged in the first lens barrel;

[0007] A second optical component, the second optical component is arranged on the image side of the first optical component, the second optical component includes a second lens barrel and a second lens group arranged in the second lens barrel; and

[0008] A reflection component, the first optical component or the second optical component is adjustably arranged on the object side of the reflection component, the reflection component includes a reflection base arranged on the image side of the second optical component and a reflection lens arranged on the reflection base, the reflection lens has an incident surface, a reflection surface and a transmission surface arranged along the optical path, and the incident surface faces the image side of the second lens group;

[0009] The optical imaging lens satisfies the following relational expressions:

[0010] 1.3 < ODn / d02s < 2.0;

[0011] 1.1 < d01m / D02s < 1.5;

[0012] Wherein, 0Dn is the maximum outer diameter of the lens closest to the image side in the first lens group, d02s is the object-side inner diameter of the second lens barrel, d01m is the image-side inner diameter of the first lens barrel, and D02s is the object-side outer diameter of the second lens barrel.

[0013] In one embodiment, when the optical imaging lens is in the state of infinite object distance, the optical imaging lens satisfies the following relational expression:

[0014] 38.2mm < f / tan(Semi-FOV) < 53.2mm;

[0015] Wherein, f is the effective focal length of the optical imaging lens, and Semi-FOV is half of the maximum field angle of the optical imaging lens.

[0016] In one embodiment, the optical imaging lens satisfies the following relational expression:

[0017] 1.6 < F1 / d02smin < 1.9;

[0018] Wherein, F1 is the effective focal length of the first lens group of the optical imaging lens, and d02smin is the minimum aperture of the object side of the second lens barrel.

[0019] In one embodiment, the optical imaging lens satisfies the following relational expression:

[0020] 1.0 < (L1 + L2) / TD < 1.25;

[0021] Wherein, L1 is the maximum height of the first lens barrel, L2 is the maximum height of the second lens barrel, and TD is the distance on the optical axis from the object side of the first lens group to the image side of the second lens group in the state of infinite object distance.

[0022] In one embodiment, the first lens group includes a first lens and a second lens disposed on the image side of the first lens, and the first lens has a positive optical power; the second lens group includes a third lens and a fourth lens disposed on the image side of the third lens, and the third lens has a negative optical power. Wherein, the object side surface of the second lens is concave, the image side surface of the second lens is convex, the object side surface of the third lens is concave, the image side surface of the third lens is convex, the object side surface of the fourth lens is convex, and the image side surface of the fourth lens is concave;

[0023] The optical imaging lens satisfies the following relational expression:

[0024] -1.4 < F2 / F1 < -1.2;

[0025] 3.0mm ≤ L1 < 3.7mm;

[0026] Wherein, F1 is the effective focal length of the first lens group, F2 is the effective focal length of the second lens group, and L1 is the maximum height of the first lens barrel.

[0027] In one embodiment, the first lens group includes a first lens, a second lens disposed on the image side of the first lens, and a third lens disposed on the image side of the second lens. The first lens has a positive optical power, and the third lens has a negative optical power. The second lens group includes a fourth lens disposed on the image side of the third lens. Wherein, the object side surface of the first lens is convex, the image side surface of the first lens is concave, the object side surface of the second lens is convex, the image side surface of the second lens is convex, the object side surface of the third lens is concave, the image side surface of the third lens is convex, the object side surface of the fourth lens is convex, and the image side surface of the fourth lens is concave;

[0028] The optical imaging lens satisfies the following relational expressions:

[0029] -2.0 < F2 / F1 < -1.4;

[0030] 3.0mm < L1 < 3.5mm;

[0031] Wherein, F1 is the effective focal length of the first lens group, F2 is the effective focal length of the second lens group, and L1 is the maximum height of the first lens barrel.

[0032] In one embodiment, the first optical component further includes a first spacer element disposed between the first lens and the second lens, and the first spacer element at least partially contacts the image side surface of the first lens;

[0033] The optical imaging lens satisfies the following relational expressions:

[0034] 1.0 < EP01 / CT1 < 3.2;

[0035] Wherein, EP01 is the spacing distance between the object side of the first lens barrel and the object side of the first spacer element, and CT1 is the central thickness of the first lens.

[0036] In one embodiment, the first optical component further includes a first spacer element disposed between the first lens and the second lens and a second spacer element disposed between the second lens and the third lens. The first spacer element at least partially contacts the image side surface of the first lens, and the second spacer element at least partially contacts the image side surface of the second lens;

[0037] The optical imaging lens satisfies the following relational expressions:

[0038] -0.3 < f2 / f3 / (d1m / d2s) < 0;

[0039] Wherein, f2 is the effective focal length of the second lens, f3 is the effective focal length of the third lens, d1m is the image-side inner diameter of the first spacer element, and d2s is the object-side inner diameter of the second spacer element.

[0040] In one embodiment, the second optical component further includes a third spacer element disposed between the third lens and the fourth lens, and at least a part of the third spacer element is in contact with the image-side surface of the third lens;

[0041] The optical imaging lens satisfies the following relational expression:

[0042] 5.9 < |f2 / f3 / (d1m / d3s)| < 11.3;

[0043] Wherein, f2 is the effective focal length of the second lens, f3 is the effective focal length of the third lens, d1m is the image-side inner diameter of the first spacer element, and d3s is the object-side inner diameter of the third spacer element.

[0044] In one embodiment, the optical imaging lens satisfies the following relational expression:

[0045] 1.1 < D1m / d1s < 1.6;

[0046] 1.3 < d0s1 / d02s < 2.1;

[0047] Wherein, D1m is the image-side outer diameter of the first spacer element, d1s is the object-side inner diameter of the first spacer element, d01s is the object-side inner diameter of the first lens barrel, and d02s is the object-side inner diameter of the second lens barrel.

[0048] In one embodiment, the optical imaging lens satisfies the following relational expression:

[0049] 1.2 < OD4 / ODP < 1.5;

[0050] Wherein, OD4 is the maximum outer diameter of the lens closest to the image side in the second lens group, and ODP is the aperture of the incident surface of the reflecting lens.

[0051] The above optical imaging lens has a small external volume and can take into account the optical performance at two object distances of infinity and 150 mm at the same time. Among them, when the object distance is infinity, the gap between the first lens group and the second lens group is the smallest, and the first optical component or the second optical component can be adjusted and moved to move the first lens group or the second lens group along the optical axis direction, so as to switch the object distance of the optical long-sleeved lens. The method of moving only the first optical component or the second optical component can ensure the smallest component movement amount, but there will be assembly offset amounts along the optical axis direction and the direction perpendicular to the optical axis during the movement process, which affects the assembly problem. When the two conditional expressions of 1.3 < ODn / d02s < 2.0 and 1.1 < d01m / D02s < 1.5 are satisfied, the minimum size of the optical imaging lens can be ensured. According to the above relational expressions, the object-side end face size of the second lens barrel and the object-side end face size of the first lens barrel are designed. When the first optical component or the second optical component is assembled and moved along the optical axis direction, the lens barrel of the second group can extend into the lens barrel of the first group and does not collide with the lens in the first lens barrel. When the first optical component or the second optical component is assembled and moved in the direction perpendicular to the optical axis, it is possible to avoid the collision between the object side of the second lens barrel and the image side of the first lens barrel, and avoid the collision between the image side of the first lens barrel and the reflection base. Description of the Drawings

[0052] Figure 1A Schematic structural diagram of the first type of structure of the optical imaging lens provided by an embodiment of the present application;

[0053] Figure 1B Schematic optical path diagram of the first type of structure of the optical imaging lens according to the above embodiment of the present application;

[0054] Figure 1C Schematic dimension diagram of the first type of structure of the optical imaging lens according to the above embodiment of the present application;

[0055] Figure 2A Schematic structural diagram of the second type of structure of the optical imaging lens provided by an embodiment of the present application;

[0056] Figure 2B Schematic optical path diagram of the second type of structure of the optical imaging lens according to the above embodiment of the present application;

[0057] Figure 2C Schematic dimension diagram of the second type of structure of the optical imaging lens according to the above embodiment of the present application;

[0058] Figure 3A Schematic assembly offset diagram when the first type of structure of the optical imaging lens according to the above embodiment of the present application satisfies the range of the relational expressions specified by the present application;

[0059] Figure 3B Shows an assembly offset schematic diagram when the upper limit of the range of the first type of structure of the optical imaging lens according to the above-mentioned embodiment of the present application exceeds the range specified by the present application;

[0060] Figure 3C Shows an assembly offset schematic diagram when the lower limit of the range of the first type of structure of the optical imaging lens according to the above-mentioned embodiment of the present application exceeds the range specified by the present application;

[0061] Figure 4A Schematic diagram of the structure of the first example of the optical imaging lens provided by the first embodiment of the present application;

[0062] Figure 4B Schematic diagram of the structure of the second example of the optical imaging lens provided by the first embodiment of the present application;

[0063] Figure 5A Shows the axial chromatic aberration curve diagram of the optical imaging lens according to the above-mentioned first embodiment of the present application in the state of infinite object distance;

[0064] Figure 5B Shows the distortion curve diagram of the optical imaging lens according to the above-mentioned first embodiment of the present application in the state of infinite object distance;

[0065] Figure 5C Shows the axial chromatic aberration curve diagram of the optical imaging lens according to the above-mentioned first embodiment of the present application in the state of object distance of 150 mm;

[0066] Figure 5D Shows the distortion curve diagram of the optical imaging lens according to the above-mentioned first embodiment of the present application in the state of object distance of 150 mm;

[0067] Figure 6A Schematic diagram of the structure of the first example of the optical imaging lens provided by the second embodiment of the present application;

[0068] Figure 6B Schematic diagram of the structure of the second example of the optical imaging lens provided by the second embodiment of the present application;

[0069] Figure 7A Shows the axial chromatic aberration curve diagram of the optical imaging lens according to the above-mentioned second embodiment of the present application in the state of infinite object distance;

[0070] Figure 7B Shows the distortion curve diagram of the optical imaging lens according to the above-mentioned second embodiment of the present application in the state of infinite object distance;

[0071] Figure 7C Shows the axial chromatic aberration curve diagram of the optical imaging lens according to the above-mentioned second embodiment of the present application in the state of object distance of 150 mm;

[0072] Figure 7D Shows the distortion curve of the optical imaging lens according to the second embodiment of the present application at the object distance of 150 mm;

[0073] Figure 8A Schematic structural diagram of the first example of the optical imaging lens provided by the third embodiment of the present application;

[0074] Figure 8B Schematic structural diagram of the second example of the optical imaging lens provided by the third embodiment of the present application;

[0075] Figure 9A Shows the axial chromatic aberration curve of the optical imaging lens according to the third embodiment of the present application at the object distance of infinity;

[0076] Figure 9B Shows the distortion curve of the optical imaging lens according to the third embodiment of the present application at the object distance of infinity;

[0077] Figure 9C Shows the axial chromatic aberration curve of the optical imaging lens according to the third embodiment of the present application at the object distance of 150 mm;

[0078] Figure 9D Shows the distortion curve of the optical imaging lens according to the third embodiment of the present application at the object distance of 150 mm;

[0079] Figure 10A Schematic structural diagram of the first example of the optical imaging lens provided by the fourth embodiment of the present application;

[0080] Figure 10B Schematic structural diagram of the second example of the optical imaging lens provided by the fourth embodiment of the present application;

[0081] Figure 11A Shows the axial chromatic aberration curve of the optical imaging lens according to the fourth embodiment of the present application at the object distance of infinity;

[0082] Figure 11B Shows the distortion curve of the optical imaging lens according to the fourth embodiment of the present application at the object distance of infinity;

[0083] Figure 11C Shows the axial chromatic aberration curve of the optical imaging lens according to the fourth embodiment of the present application at the object distance of 150 mm;

[0084] Figure 11D Shows the distortion curve of the optical imaging lens according to the fourth embodiment of the present application at the object distance of 150 mm.

[0085] Reference numerals: E1, first lens; E2, second lens; E3, third lens; E4, fourth lens; P, reflecting lens; P01, first lens barrel; P02, second lens barrel; P03, reflecting base; P1, first spacer; P2, second spacer; P3, third spacer. DETAILED DESCRIPTION

[0086] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0087] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0088] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0089] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0090] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0091] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0092] Based on the problem that the multi-barrel structure of the current mobile phone telephoto lens is large in size and cannot meet the demand for small size of the mobile phone, the present application provides an optical imaging lens that can not only meet the demand for long focal length, but also ensure the small size of the lens and improve the performance at macro distance.

[0093] For details, please refer to Figures 1A to 2C The optical imaging lens may include a first optical component, a second optical component and a reflective component. The first optical component may include a first lens barrel P01 and a first lens group, and the first lens group is arranged on the first lens barrel P01. The second optical component is arranged on the image side of the first optical component. The second optical component includes a second lens barrel P02 and a second lens group, and the second lens group is arranged on the second lens barrel P02. The first optical component or the second optical component is adjustably arranged on the object side of the reflective component. The reflective component includes a reflective base P03 arranged on the image side of the second optical component and a reflective lens P arranged on the reflective base P03. The reflective lens P has an incident surface, a reflective surface and a transmissive surface arranged along an optical path, and the incident surface faces the image side of the second lens group.

[0094] The optical imaging lens has a relatively small external volume, and can take into account the optical performance of both infinity and 150 mm object distances. When the object distance is infinite, the gap between the first lens group and the second lens group is the smallest, and the first optical component or the second optical component can be adjusted and moved so that the first lens group or the second lens group moves along the optical axis, and the object distance of the optical imaging lens can be switched. The method of moving the first optical component or the second optical component separately can ensure the minimum component movement, reduce the total length of the optical imaging lens, and can also improve the performance at both infinity and 150 mm object distances.

[0095] Since there is an assembly offset along the optical axis and in a direction perpendicular to the optical axis during the movement of the first optical component or the second optical component when switching the object distance, interference and collision may occur among the first lens barrel P01, the second lens barrel P02 and the reflective base P03.

[0096] Therefore, the optical imaging lens satisfies the following relationship: 1.3 <ODn / d02s<2.0;1.1<d01m / D02s<1.5;其中,0Dn为该第一镜组中最靠近像侧的透镜的最大外径,d02s为该第二镜筒P02的物侧内径,d01m为该第一镜筒P01的像侧内径,D02s为该第二镜筒P02的物侧外径。

[0097] When the above conditional expression is met, the minimum size of the optical imaging lens can be guaranteed. The object side end surface size of the second lens barrel P02 and the object side end surface size of the first lens barrel P01 are designed according to the above relationship. When the first optical component or the second optical component is assembled and moved along the optical axis, the lens barrel of the second group can be extended into the lens barrel of the first group without colliding with the lens in the first lens barrel P01. When the first optical component or the second optical component is assembled and moved in the direction perpendicular to the optical axis, the object side of the second lens barrel P02 can be prevented from colliding with the image side of the first lens barrel P01, and the image side of the first lens barrel P01 can be prevented from colliding with the reflective base P03.

[0098] For example, in some embodiments, when the optical imaging lens satisfies the relationship ODn / d02s=1.8 and d01m / D02s=1.4, the range of the relationship specified in the present application is satisfied, such as Figure 3A As shown, the object side of the second lens barrel P02 does not collide with the image side of the first lens barrel P01, and the image side of the first lens barrel P01 does not collide with the reflective base P03.

[0099] When the optical imaging lens satisfies the relationship ODn / d02s=2.4 and d01m / D02s=1.8, it exceeds the upper limit of the relationship specified in this application, such as Figure 3BAs shown, the object side of the second lens barrel P02 does not collide with the image side of the first lens barrel P01, and an interference collision occurs between the image side of the first lens barrel P01 and the reflective base P03.

[0100] When the optical imaging lens satisfies the relationship ODn / d02s=1.0 and d01m / D02s=0.8, it exceeds the lower limit of the relationship specified in this application, such as Figure 3C As shown, the object side of the second lens barrel P02 and the image side of the first lens barrel P01 generate interference collision, and the image side of the first lens barrel P01 and the reflection base P03 do not generate interference collision.

[0101] Optionally, in one embodiment, when the optical imaging lens is in an infinite object distance state, the optical imaging lens satisfies the following relationship: 38.2 mm <f / tan(Semi-FOV)<53.2mm;其中,f为该光学成像镜头的有效焦距,Semi-FOV为该光学成像镜头最大视场角的一半。根据上述关系式设计该光学成像镜头,使该光学成像镜头能够在保证性能参数的前提下,控制该第一光学组件和该第二光学组件的长度,从而降低该光学成像镜头的总体长度和高度,实现轻薄和小型化的需求。

[0102] Optionally, in one embodiment, the optical imaging lens satisfies the following relationship: 1.6 <F1 / d02smin<1.9;其中,F1为该光学成像镜头第一镜组的有效焦距,d02smin为该第二镜筒P02的物侧最小孔径。根据上述关系式设计该光学成像镜头,能够控制光线进入该第二镜组的通光量,改善经由该第一镜组后产生的杂光,提升该光学成像镜头的良率。同时,有助于控制光学系统的组立稳定性,控制该光学成像镜头的前端尺寸,有助于与其他结构配合。

[0103] Optionally, in one of the embodiments, the optical imaging lens satisfies the following relationship: 1.0<(L1+L2) / TD<1.25; wherein L1 is the maximum height of the first lens barrel P01, L2 is the maximum height of the second lens barrel P02, and TD is the distance on the optical axis from the object side of the first lens group to the image side of the second lens group when the object distance is infinite. The optical imaging lens is designed according to the above relationship, and the front end size of the first lens barrel P01 on the object side of the first lens E1 and the rear end size of the second lens barrel P02 on the image side of the fourth lens E4 can be controlled to ensure the supporting thickness of the first lens E1 and the dispensing space of the rear end of the fourth lens E4, which helps to improve the overall assembly stability of the optical imaging lens and ensure the appearance of the lens, and helps to cooperate with other structures.

[0104] Alternatively, if Figure 1A , Figure 1B and Figure 1C As shown, in one embodiment, the first lens group includes a first lens E1 and a second lens E2 disposed on the image side of the first lens E1, the first lens E1 has positive focal power; the second lens group includes a third lens E3 and a fourth lens E4 disposed on the image side of the third lens E3, the third lens E3 has negative focal power; the object side surface of the second lens E2 is a concave surface, the image side surface of the second lens E2 is a convex surface, the object side surface of the third lens E3 is a concave surface, the image side surface of the third lens E3 is a convex surface, the object side surface of the fourth lens E4 is a convex surface, and the image side surface of the fourth lens E4 is a concave surface; the optical imaging lens satisfies the following relationship: -1.4 <F2 / F1<-1.2;3.0mm≤L1<3.7mm;其中,F1为该第一镜组的有效焦距,F2为该第二镜组的有效焦距,L1为该第一镜筒P01的最大高度。根据上述关系式设计该光学成像镜头,能够控制该第一镜组和该第二镜组的有效焦距的差值,控制该第一镜筒P01的最大高度,保证该第一镜组在整个光学系统中的长度比例,从而控制光线在两个镜组之间的走势,使得光焦度更合理地分配,使光学系统在无线物距和微物距时,性能都能够得到保证。

[0105] Alternatively, if Figure 2A , Figure 2B and Figure 2CAs shown, in one embodiment, the first lens group includes a first lens E1, a second lens E2 arranged on the image side of the first lens E1, and a third lens E3 arranged on the image side of the second lens E2, the first lens E1 has positive focal power, and the third lens E3 has negative focal power; the second lens group includes a fourth lens E4 arranged on the image side of the third lens E3, the object side surface of the first lens E1 is convex, the image side surface of the first lens E1 is concave, the object side surface of the second lens E2 is convex, the image side surface of the second lens E2 is convex, the object side surface of the third lens E3 is concave, the image side surface of the third lens E3 is convex, the object side surface of the fourth lens E4 is convex, and the image side surface of the fourth lens E4 is concave; the optical imaging lens satisfies the following relationship: -2.0 <F2 / F1<-1.4;3.0mm<L1<3.5mm;其中,F1为该第一镜组的有效焦距,F2为该第二镜组的有效焦距,L1为该第一镜筒P01的最大高度。根据上述关系式设计该光学成像镜头,能够控制该第一镜组和该第二镜组的有效焦距的差值,控制该第二镜筒P02的最大高度,保证该第二镜组在整个光学系统中的长度比例,从而控制光线在两个镜组之间的走势,使得光焦度更合理地分配,使光学系统在无线物距和微物距时,性能都能够得到保证。

[0106] Alternatively, if Figure 1A , Figure 1B and Figure 1C As shown, in one embodiment, the optical imaging lens further includes a first spacing element P1 disposed between the first lens E1 and the second lens E2, and the first spacing element P1 at least partially contacts the image-side surface of the first lens E1; the optical imaging lens satisfies the following relationship: 1.0 <EP01 / CT1<3.2;其中,EP01为该第一镜筒P01的物侧与该第一间隔元件P1的物侧的间隔距离,CT1为该第一透镜E1的中心厚度。根据上述关系式设计该光学成像镜头,能够控制该第一透镜E1的中心厚度以及该第一透镜E1的物侧面的弯曲曲率,防止该第一透镜E1的物侧面弯曲过大而出现成型问题,还能够避免该第一透镜E1的物侧面和像侧面由于弯曲角度太大而造成的膜色不均匀的问题。

[0107] Alternatively, if Figure 2A , Figure 2B and Figure 2CAs shown, in one embodiment, the optical imaging lens further includes a second spacing element P2 disposed between the second lens E2 and the third lens E3, and the second spacing element P2 at least partially contacts the image-side surface of the second lens E2; the optical imaging lens satisfies the following relationship: -0.3 <f2 / f3 / (d1m / d2s)<0;其中,f2为第二透镜E2的有效焦距,f3为第三透镜E3的有效焦距,d1m为该第一间隔元件P1像侧内径,d2s为该第二间隔元件P2的物侧内径。根据上述关系式设计该光学成像镜头,能够控制该第二透镜E2和第三透镜E3的光焦度,能够限制光路在光学系统中的路径,使第一光学组件和该第二光学组件的光焦度分配更合理,能够有效提升该光学成像镜头的解像力。通过对该第一间隔片和该第二间隔片的内径的约束,能够最大程度地减少杂光,保证光学系统的成像质量。

[0108] Alternatively, if Figure 1A , Figure 1B and Figure 1C As shown, in one embodiment, the optical imaging lens further includes a third spacing element P3 disposed between the third lens E3 and the fourth lens E4, and the third spacing element P3 at least partially contacts the image side surface of the third lens E3; the optical imaging lens satisfies the following relationship: 5.9<|f2 / f3 / (d1m / d3s)|<11.3; wherein f2 is the effective focal length of the second lens E2, f3 is the effective focal length of the third lens E3, d1m is the image side inner diameter of the first spacing element P1, and d3s is the object side inner diameter of the third spacing element P3. Designing the optical imaging lens according to the above relationship can constrain the trend of light entering the second lens group from the first lens group, help control the size of the first spacing element P1 and the third spacing element P3, intercept stray light paths, and help reduce stray light caused by reflection of the spacing element, cooperate with the convergence of the overall optical power, and further improve the imaging quality of the group lens.

[0109] Optionally, in one embodiment, the optical imaging lens satisfies the following relationship: 1.1 <D1m / d1s<1.6;1.3<d0s1 / d02s<2.1;其中,D1m为该第一间隔元件P1的像侧外径,d1s为该第一间隔元件P1的物侧内径,d01s为该第一镜筒P01的物侧内径,d02s为该第二镜筒P02的物侧内径。根据上述关系式设计该光学成像镜头,通过约束该第一间隔元件P1像侧外径和物侧内径,能够控制该第一透镜E1到该第二透镜E2的有效径段差和外径段差,受光学系统的决定,该第一透镜E1的物侧面的透光部的有效径最大,通过控制两者的段差,能够控制整个系统的结构段差,从而保证整个光学系统的组立稳定性。此外,通过同时对两个光学组件的镜筒的物侧的内径进行控制,能够有效地保证两个光学组件的口径差异不会过大,从而能够保证该光学成像镜头的整体体积在合适的范围内,避免了在不同物距对焦时,单群组移动过程中的碰撞的问题。

[0110] Optionally, in one embodiment, the optical imaging lens satisfies the following relationship: 1.2 <OD4 / ODP<1.5;其中,OD4为所述第二镜组中最靠近像侧的透镜的最大外径,ODP为该反射透镜P的入射面的孔径。根据上述关系式设计该光学成像镜头,能够约束该第四透镜E4的最大外径和反射透镜P靠近该第四透镜E4的入射面的孔径比值,能够保证有足够的视场光线通过反射透镜P,维持到达像面的相对照度,同时还能够减少多余光线进入,减少杂散光,提升成像质量。

[0111] Specific embodiments of the optical imaging lens applicable to the above embodiments are further described below with reference to the accompanying drawings.

[0112] like Figure 4A and Figure 4BAs shown, in the first embodiment of the present application, the optical camera lens comprises a first optical component and a second optical component in sequence from the object side to the image side, the first optical component comprises a first lens barrel P01, a first lens group and a first spacing element P1, the first lens group is arranged in the first lens barrel P01, the first lens group comprises a first lens E1 and a second lens E2, the first spacing element P1 is arranged between the first lens E1 and the second lens E2, the second optical component comprises a second lens barrel P02, a second lens group and a third spacing element P3, the second lens group is arranged in the second lens barrel P02, the second lens group comprises a third lens E3 and a fourth lens E4, the third spacing element P3 is arranged between the third lens E3 and the fourth lens E4. The first lens E1 has positive focal power, the object-side surface S1 of the first lens E1 is convex, and the image-side surface S2 is convex, the second lens E2 has negative focal power, the object-side surface S3 of the second lens E2 is concave, and the image-side surface S4 is convex, the third lens E3 has negative focal power, the object-side surface S5 of the third lens E3 is concave, and the image-side surface S6 is convex, the fourth lens E4 has positive focal power, the object-side surface S7 of the fourth lens E4 is convex, and the image-side surface S8 is concave.

[0113] In the first embodiment, the maximum object distance of the optical imaging lens is infinity, and the minimum object distance is 150 mm. When the object distance is infinity, the semi-field angle (Semi-FOV) of the imaging lens is 14.40°, the aperture number (Fno) is 2.43, and the effective focal length is 12.60 mm; when the object distance is 150 mm, the semi-field angle (Semi-FOV) of the imaging lens is 13.80°, the aperture number (Fno) is 2.49, and the effective focal length is 11.54 mm; the effective focal length (f1) of the first lens E1 is 5.72 mm, the effective focal length (f2) of the second lens E2 is -80.91 mm, the effective focal length (f3) of the third lens E3 is -4.67 mm, the effective focal length (f4) of the fourth lens E4 is 10.55 mm, and the aperture (ODP) of the incident surface of the reflective lens P is 3.45 mm.

[0114] Table 1 shows a basic parameter table of the lens of the optical imaging lens of the first embodiment, wherein the units of the radius of curvature and thickness are both millimeters (mm), and Table 2 shows a conic coefficient table of the aspherical mirror surface of the optical imaging lens of the first embodiment.

[0115] Table 1: Basic parameters of the optical imaging lens of the first embodiment

[0116] Surface Number Surface Type Radius of Curvature Thickness Material Conic Coefficient OBJ Spherical Infinity Infinity | 150 STO Spherical Infinity -1.0428 S1 Aspherical 3.383 1.6185 1.546,56.1 -0.1348 S2 Aspherical -33.551 0.6543 -23.1455 S3 Aspherical -4.594 0.8563 1.677,19.23 -4.4698 S4 Aspherical -5.392 0.3597|0.7589 -10.5946 S5 Aspherical -2.085 0.2850 1.57,37.4 -1.0203 S6 Aspherical -10.072 0.3016 0.0000 S7 Aspherical 2.411 0.5150 1.546,56.1 -0.1258 S8 Aspherical 3.835 0.9596|0.5606 0.0000 S9 Spherical Infinity 1.7250 1.853,23.79 S10 Spherical Infinity -1.7250 1.853,23.79 S11 Spherical Infinity -2.4588 S12 Spherical Infinity -0.2100 1.517,64.2 S13 Spherical Infinity -1.7626 S14 Spherical Infinity

[0117] Table 2: Conic coefficient table of the aspherical mirror surface of the optical imaging lens of the first embodiment

[0118]

[0119]

[0120] The optical imaging lens of the first embodiment provides specific examples of the first spacer element P1 and the third spacer element P3 in two sizes.

[0121] The size parameters of the optical imaging lens of the first example of the first embodiment are as follows:

[0122] The object-side inner diameter d1s of the first spacer element P1 is 4.72 mm; the image-side inner diameter d1m of the first spacer element P1 is 4.72 mm; the image-side outer diameter D1m of the first spacer element P1 is 6.74 mm; the object-side inner diameter d3s of the third spacer element P3 is 3.08 mm; the object-side inner diameter d01s of the first lens barrel P01 is 7.18 mm; the image-side inner diameter d01m of the first lens barrel P01 is 7.26 mm; the image-side outer diameter D01m of the first lens barrel P01 is 8.60 mm; the spacing distance EP01 between the object side of the first lens barrel P01 and the object side of the first spacer element P1 is 1.90 mm; the maximum height L1 of the first lens barrel P01 is 3.59 mm; the object-side inner diameter d02s of the second lens barrel P02 is 3.83 mm; the object-side outer diameter D02s of the second lens barrel P02 is 5.20 mm; the image-side outer diameter D02m of the second lens barrel P02 is 6.00 mm; the maximum height L2 of the second lens barrel P02 is 1.54 mm; the minimum object-side aperture d02smin of the second lens barrel P02 is 3.53 mm; the maximum outer diameter OD2 of the second lens E2 is 6.74 mm; the maximum outer diameter OD4 of the fourth lens is 4.74 mm.

[0123] The optical imaging lens of the first example of the first embodiment satisfies the following relationships:

[0124] ODn / d02s = 1.76;

[0125] d01m / D02s = 1.40;

[0126] F1 / d02smin = 1.83;

[0127] EP01 / CT1 = 1.17;

[0128] (L1 + L2) / TD = 1.12;

[0129] |f2 / f3 / (d1m / d3s)| = 11.28;

[0130] D1m / d1s = 1.43;

[0131] d0s1 / d02s = 1.87;

[0132] F2 / F1 = -1.31;

[0133] OD4 / ODP = 1.37;

[0134] Therefore, the optical imaging lens of the first example of the first embodiment meets the numerical values of the optical imaging lens provided in this application.

[0135] The size parameters of the optical imaging lens of the second example of the first embodiment are as follows:

[0136] The object-side inner diameter d1s of the first spacer element P1 is 5.48 mm; the image-side inner diameter d1m of the first spacer element P1 is 5.02 mm; the image-side outer diameter D1m of the first spacer element P1 is 6.37 mm; the object-side inner diameter d3s of the third spacer element P3 is 3.09 mm; the object-side inner diameter d01s of the first lens barrel P01 is 7.77 mm; the image-side inner diameter d01m of the first lens barrel P01 is 7.52 mm; the image-side outer diameter D01m of the first lens barrel P01 is 8.77 mm; the spacing distance EP01 between the object side of the first lens barrel P01 and the object side of the first spacer element P1 is 1.72 mm; the maximum height L1 of the first lens barrel P01 is 3.59 mm; the object-side inner diameter d02s of the second lens barrel P02 is 3.85 mm; the object-side outer diameter D02s of the second lens barrel P02 is 5.39 mm; the image-side outer diameter D02m of the second lens barrel P02 is 6.20 mm; the maximum height L2 of the second lens barrel P02 is 1.57 mm; the minimum object-side aperture d02smin of the second lens barrel P02 is 3.57 mm; the maximum outer diameter OD2 of the second lens E2 is 6.94 mm; the maximum outer diameter OD4 of the fourth lens is 4.93 mm.

[0137] The optical imaging lens of the second example of the first embodiment satisfies the following relational expressions:

[0138] ODn / d02s = 1.80;

[0139] d01m / D02s = 1.39;

[0140] F1 / d02smin = 1.81;

[0141] EP01 / CT1 = 1.06;

[0142] (L1 + L2) / TD = 1.12;

[0143] |f2 / f3 / (d1m / d3s)| = 10.64;

[0144] D1m / d1s = 1.16;

[0145] d0s1 / d02s = 2.02;

[0146] F2 / F1 = -1.31;

[0147] OD4 / ODP = 1.43;

[0148] Therefore, the optical imaging lens of the second example of the first embodiment conforms to the values of the optical imaging lens provided in this application.

[0149] Figure 5A Shows the axial chromatic aberration curve of the optical imaging lens of the first embodiment in the state where the object distance is infinite, Figure 5B Shows the distortion curve of the optical imaging lens of the first embodiment in the state where the object distance is infinite. Figure 5C Shows the axial chromatic aberration curve of the optical imaging lens of the first embodiment in the state where the object distance is 150 mm, Figure 5D Shows the distortion curve of the optical imaging lens of the first embodiment in the state where the object distance is 150 mm. According to Figures 5A to 5D It can be seen that the optical imaging lens given in the first embodiment can achieve good imaging quality in both the state where the object distance is infinite and the state where the object distance is 150 mm.

[0150] As Figure 6A and Figure 6B shown, in the second embodiment of this application, the optical imaging lens sequentially includes a first optical component and a second optical component from the object side to the image side. The first optical component includes a first lens barrel P01, a first lens group, and a first spacer element P1. The first lens group is disposed in the first lens barrel P01. The first lens group includes a first lens E1 and a second lens E2. The first spacer element P1 is disposed between the first lens E1 and the second lens E2. The second optical component includes a second lens barrel P02, a second lens group, and a third spacer element P3. The second lens group is disposed in the second lens barrel P02. The second lens group includes a third lens E3 and a fourth lens E4. The third spacer element P3 is disposed between the third lens E3 and the fourth lens E4. The first lens E1 has a positive optical power. The object side surface S1 of the first lens E1 is a convex surface, and the image side surface S2 is a concave surface. The second lens E2 has a positive optical power. The object side surface S3 of the second lens E2 is a concave surface, and the image side surface S4 is a convex surface. The third lens E3 has a negative optical power. The object side surface S5 of the third lens E3 is a concave surface, and the image side surface S6 is a convex surface. The fourth lens E4 has a positive optical power. The object side surface S7 of the fourth lens E4 is a convex surface, and the image side surface S8 is a concave surface.

[0151] In the second embodiment, the maximum object distance of the optical imaging lens is infinity, and the minimum object distance is 150 mm. When the object distance is infinity, the semi-field of view (Semi-FOV) of the imaging lens is 16.50°, the f-number (Fno) is 2.43, and the effective focal length is 11.35 mm; when the object distance is 150 mm, the semi-field of view (Semi-FOV) of the imaging lens is 15.92°, the f-number (Fno) is 2.48, and the effective focal length is 10.47 mm; the effective focal length (f1) of the first lens E1 is 6.02 mm, the effective focal length (f2) of the second lens E2 is 43.59 mm, the effective focal length (f3) of the third lens E3 is -4.31 mm, the effective focal length (f4) of the fourth lens E4 is 9.95 mm, and the aperture (ODP) of the incident surface of the reflective lens P is 3.5 mm.

[0152] Table 3 shows the basic parameter table of the lenses of the optical imaging lens in the second embodiment, where the units of the radius of curvature and the thickness are both millimeters (mm), and Table 4 shows the conic coefficient table of the aspherical mirror surfaces of the optical imaging lens in the second embodiment.

[0153] Table 3: Basic Parameter Table of the Lenses of the Optical Imaging Lens in the Second Embodiment

[0154]

[0155]

[0156] Table 4: Conic Coefficient Table of the Aspherical Mirror Surfaces of the Optical Imaging Lens in the Second Embodiment

[0157] Surface Number A4 A6 A8 A10 A12 A14 A16 s1 6.38E-03 -2.20E-02 -1.37E-02 -5.63E-03 -1.66E-03 -3.26E-04 -1.24E-05 s2 4.58E-02 -3.45E-02 -1.34E-02 -6.79E-04 9.87E-04 2.25E-04 -6.85E-05 s3 2.34E-01 1.26E-02 -6.03E-04 1.28E-03 2.64E-04 7.25E-05 4.98E-05 s4 1.30E-01 1.82E-02 2.60E-03 1.20E-03 2.68E-04 8.70E-05 4.18E-05 s5 6.72E-01 -1.03E-01 2.50E-02 -7.31E-03 2.36E-03 -8.38E-04 3.22E-04 s6 4.19E-01 -4.00E-02 1.06E-02 -2.69E-03 7.59E-04 -3.05E-04 9.66E-05 s7 -2.98E-01 1.53E-02 -3.86E-03 7.65E-05 -8.56E-05 -8.03E-05 1.15E-06 s8 -3.87E-01 3.60E-03 -4.52E-03 -4.34E-04 -1.53E-04 -1.23E-04 1.79E-05 Surface Number A18 A20 A22 A24 A26 A28 A30 s1 2.11E-05 4.25E-06 -5.74E-06 -1.03E-06 8.67E-06 6.27E-06 0.00E+00 s2 -2.97E-05 1.52E-05 2.01E-05 6.11E-06 -1.37E-06 0.00E+00 0.00E+00 s3 3.95E-05 2.16E-05 4.98E-06 -3.78E-06 -5.95E-06 0.00E+00 0.00E+00 s4 3.66E-05 2.00E-05 6.20E-06 2.17E-08 -5.01E-06 -4.57E-06 0.00E+00 s5 -1.25E-04 5.77E-05 -2.55E-05 1.54E-05 -8.37E-06 1.59E-06 0.00E+00 s6 -4.28E-05 1.79E-05 -1.08E-05 3.50E-07 8.88E-07 -7.11E-08 0.00E+00 s7 -1.92E-05 3.68E-06 -3.67E-06 1.01E-06 4.48E-06 -1.34E-06 0.00E+00 s8 -8.86E-06 1.81E-05 -4.74E-06 3.37E-06 2.28E-06 1.01E-07 -3.81E-07

[0158] The optical imaging lens in the second embodiment provides specific examples of the first spacer element P1 and the third spacer element P3 in two sizes.

[0159] The size parameters of the optical imaging lens in the first example of the second embodiment are as follows:

[0160] The object-side inner diameter d1s of the first spacer element P1 is 4.23 mm; the image-side inner diameter d1m of the first spacer element P1 is 4.23 mm; the image-side outer diameter D1m of the first spacer element P1 is 6.63 mm; the object-side inner diameter d3s of the third spacer element P3 is 2.8 mm; the object-side inner diameter d01s of the first lens barrel P01 is 6.95 mm; the image-side inner diameter d01m of the first lens barrel P01 is 7.46 mm; the image-side outer diameter D01m of the first lens barrel P01 is 8.41 mm; the spacing distance EP01 between the object-side of the first lens barrel P01 and the object-side of the first spacer element P1 is 1.8 mm; the maximum height L1 of the first lens barrel P01 is 3.09 mm; the object-side inner diameter d02s of the second lens barrel P02 is 3.51 mm; the object-side outer diameter D02s of the second lens barrel P02 is 5.36 mm; the image-side outer diameter D02m of the second lens barrel P02 is 5.8 mm; the maximum height L2 of the second lens barrel P02 is 1.44 mm; the minimum object-side aperture d02smin of the second lens barrel P02 is 3.23 mm; the maximum outer diameter OD2 of the second lens E2 is 6.63 mm; the maximum outer diameter OD4 of the fourth lens is 4.64.

[0161] The optical imaging lens of the first example of the second embodiment satisfies the following relationships:

[0162] ODn / d02s = 1.89;

[0163] d01m / D02s = 1.39;

[0164] F1 / d02smin = 1.8;

[0165] EP01 / CT1 = 1.25;

[0166] (L1 + L2) / TD = 1.08;

[0167] |f2 / f3 / (d1m / d3s)| = 6.69;

[0168] D1m / d1s = 1.57;

[0169] d0s1 / d02s = 1.98;

[0170] F2 / F1 = -1.28;

[0171] OD4 / ODP = 1.33;

[0172] Therefore, the optical imaging lens of the first example of the second embodiment conforms to the numerical values of the optical imaging lens provided in this application.

[0173] The size parameters of the optical imaging lens of the second example of the second embodiment are as follows:

[0174] The inner diameter d1s of the object side of the first spacing element P1 is 5.15mm; the inner diameter d1m of the image side of the first spacing element P1 is 4.76mm; the outer diameter D1m of the image side of the first spacing element P1 is 6.54mm; the inner diameter d3s of the object side of the third spacing element P3 is 2.81mm; the inner diameter d01s of the object side of the first lens barrel P01 is 6.48mm; the inner diameter d01m of the image side of the first lens barrel P01 is 7.57mm; the outer diameter D01m of the image side of the first lens barrel P01 is 8.22mm; the distance between the object side of the first lens barrel P01 and the object side of the first spacing element P1 is The distance EP01 is 1.59mm; the maximum height L1 of the first lens barrel P01 is 3mm; the object side inner diameter d02s of the second lens barrel P02 is 3.51mm; the object side outer diameter D02s of the second lens barrel P02 is 5.2mm; the image side outer diameter D02m of the second lens barrel P02 is 6mm; the maximum height L2 of the second lens barrel P02 is 1.52mm; the object side minimum aperture d02smin of the second lens barrel P02 is 3.27mm; the maximum outer diameter OD2 of the second lens E2 is 6.94mm; the maximum outer diameter OD4 of the fourth lens is 4.64mm.

[0175] The optical imaging lens of the second example of the second embodiment satisfies the following relationship:

[0176] ODn / d02s=1.98;

[0177] d01m / D02s=1.46;

[0178] F1 / d02smin=1.78;

[0179] EP01 / CT1=1.11;

[0180] (L1+L2) / TD=1.08;

[0181] |f2 / f3 / (d1m / d3s)|=5.97;

[0182] D1m / d1s=1.27;

[0183] d0s1 / d02s=1.85;

[0184] F2 / F1=-1.28;

[0185] OD4 / ODP = 1.33;

[0186] Therefore, the optical imaging lens of the second example of the second embodiment meets the numerical values ​​of the optical imaging lens provided in this application.

[0187] Figure 7A axial chromatic aberration curve of the optical imaging lens of the second embodiment when the object distance is infinite, Figure 7BThe distortion curve of the optical imaging lens of the second embodiment when the object distance is infinite is shown. Figure 7C axial chromatic aberration curve of the optical imaging lens of the second embodiment when the object distance is 150 mm. Figure 7D FIG. 2 shows the distortion curve of the optical imaging lens of the second embodiment when the object distance is 150 mm. Figures 7A to 7D It can be seen that the optical imaging lens provided in the second embodiment can achieve good imaging quality in both the state of infinite object distance and the state of 150 mm object distance.

[0188] like Figure 8A and Figure 8B As shown, in the third embodiment of the present application, the optical camera lens comprises a first optical component and a second optical component in sequence from the object side to the image side, the first optical component comprises a first lens barrel P01, a first lens group, a first spacing element P1 and a second spacing element P2, the first lens group is arranged in the first lens barrel P01, the first lens group comprises a first lens E1, a second lens E2 and a third lens E3, the first spacing element P1 is arranged between the first lens E1 and the second lens E2, the second spacing element P2 is arranged between the second lens E2 and the third lens E3, the second optical component comprises a second lens barrel P02 and a second lens group, the second lens group is arranged in the second lens barrel P02, the second lens group comprises a fourth lens E4, and the third spacing element P3 is arranged between the third lens E3 and the fourth lens E4. The first lens E1 has positive focal power, the object-side surface S1 of the first lens E1 is convex, and the image-side surface S2 is concave, the second lens E2 has positive focal power, the object-side surface S3 of the second lens E2 is convex, and the image-side surface S4 is convex, the third lens E3 has negative focal power, the object-side surface S5 of the third lens E3 is concave, and the image-side surface S6 is convex, the fourth lens E4 has negative focal power, the object-side surface S7 of the fourth lens E4 is convex, and the image-side surface S8 is concave.

[0189] In the third embodiment, the maximum object distance of the optical imaging lens is infinity, and the minimum object distance is 150 mm. When the object distance is infinity, the semi-field angle (Semi-FOV) of the imaging lens is 14.27°, the aperture number (Fno) is 2.43, and the effective focal length is 13.50 mm; when the object distance is 150 mm, the semi-field angle (Semi-FOV) of the imaging lens is 13.55°, the aperture number (Fno) is 2.56, and the effective focal length is 12.74 mm; the effective focal length (f1) of the first lens E1 is 77.36 mm, the effective focal length (f2) of the second lens E2 is 6.78 mm, the effective focal length (f3) of the third lens E3 is -94.63 mm, the effective focal length (f4) of the fourth lens E4 is -11.40 mm, and the aperture (ODP) of the incident surface of the reflective lens P is 4.5 mm.

[0190] Table 5 shows a basic parameter table of the lens of the optical imaging lens of the third embodiment, wherein the units of the radius of curvature and thickness are both millimeters (mm), and Table 6 shows a conic coefficient table of the aspherical mirror surface of the optical imaging lens of the third embodiment.

[0191] Table 5: Basic parameters of the optical imaging lens of the third embodiment

[0192]

[0193]

[0194] Table 6: Conic coefficient table of the aspherical mirror surface of the optical imaging lens of the third embodiment

[0195] Surface Number A4 A6 A8 A10 A12 A14 A16 s1 1.10E-02 4.41E-03 -1.15E-02 -9.50E-03 -2.86E-03 -1.51E-03 4.55E-05 s2 -4.90E-02 -1.36E-02 1.31E-03 -2.04E-02 8.94E-05 -6.85E-03 3.67E-03 s3 1.07E-01 -3.75E-02 1.25E-02 -8.75E-03 3.47E-03 -7.23E-03 3.72E-03 s4 2.18E-01 -2.16E-02 -1.13E-02 3.49E-03 -8.44E-04 -2.63E-04 2.07E-04 s5 1.21E+00 2.91E-02 1.22E-03 6.30E-03 -3.73E-03 1.31E-03 -1.09E-03 s6 5.60E-01 3.02E-02 7.11E-03 7.34E-03 -6.18E-04 9.73E-04 -1.71E-04 s7 -1.83E-01 4.02E-02 -9.48E-03 1.55E-03 -3.02E-04 1.09E-04 -8.93E-05 s8 -2.10E-01 3.44E-02 -9.73E-03 5.16E-04 -3.30E-05 1.77E-05 -1.81E-05 Surface Number A18 A20 A22 A24 A26 A28 A30 s1 1.40E-04 9.34E-05 1.13E-04 -1.70E-05 0.00E+00 0.00E+00 0.00E+00 s2 5.84E-05 3.94E-04 6.74E-04 -4.09E-04 0.00E+00 0.00E+00 0.00E+00 s3 -5.62E-04 1.76E-04 7.18E-04 -3.82E-04 0.00E+00 0.00E+00 0.00E+00 s4 -1.66E-03 9.73E-05 3.82E-04 3.94E-05 0.00E+00 0.00E+00 0.00E+00 s5 -1.07E-03 2.35E-04 -9.33E-05 1.27E-04 1.58E-05 6.03E-06 0.00E+00 s6 -3.07E-04 9.96E-05 -7.00E-05 -1.08E-05 0.00E+00 0.00E+00 0.00E+00 s7 7.30E-05 -9.36E-05 2.98E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 s8 1.16E-05 -9.41E-05 3.37E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00

[0196] The optical imaging lens of the third embodiment provides specific examples of the first spacing element P1 and the third spacing element P3 of two sizes.

[0197] The size parameters of the optical imaging lens of the first example of the third embodiment are as follows:

[0198] The object side inner diameter d1s of the first spacing element P1 is 5.48 mm; the image side inner diameter d1m of the first spacing element P1 is 5.48 mm; the image side outer diameter D1m of the first spacing element P1 is 7.28 mm; the object side inner diameter d2s of the second spacing element P2 is 5.36 mm; the object side inner diameter d01s of the first lens barrel P01 is 8.06 mm; the image side inner diameter d01m of the first lens barrel P01 is 7.92 mm; the image side outer diameter D01m of the first lens barrel P01 is 9.48 mm; the spacing distance E between the object side of the first lens barrel P01 and the object side of the first spacing element P1 P01 is 1.51mm; the maximum height L1 of the first lens barrel P01 is 3.09mm; the object side inner diameter d02s of the second lens barrel P02 is 4.98mm; the object side outer diameter D02s of the second lens barrel P02 is 6.42mm; the image side outer diameter D02m of the second lens barrel P02 is 6.89mm; the maximum height L2 of the second lens barrel P02 is 1.23mm; the object side minimum aperture d02smin of the second lens barrel P02 is 4.57mm; the maximum outer diameter OD3 of the third lens E3 is 7.4mm; the maximum outer diameter OD4 of the fourth lens is 5.84mm.

[0199] The optical imaging lens of the first example of the third embodiment satisfies the following relationship:

[0200] ODn / d02s=1.49;

[0201] d01m / D02s=1.23;

[0202] F1 / d02smin=1.64;

[0203] EP01 / CT1=3;

[0204] (L1+L2) / TD=1.2;

[0205] f2 / f3 / (d1m / d2s)=-0.07;

[0206] D1m / d1s=1.33;

[0207] d0s1 / d02s=1.62;

[0208] F2 / F1=-1.52;

[0209] OD4 / ODP=1.3;

[0210] Therefore, the optical imaging lens of the first example of the third embodiment meets the numerical values ​​of the optical imaging lens provided in this application.

[0211] The size parameters of the optical imaging lens of the second example of the third embodiment are as follows:

[0212] The object side inner diameter d1s of the first spacing element P1 is 5.47 mm; the image side inner diameter d1m of the first spacing element P1 is 5.47 mm; the image side outer diameter D1m of the first spacing element P1 is 6.39 mm; the object side inner diameter d2s of the second spacing element P2 is 5.34 mm; the object side inner diameter d01s of the first lens barrel P01 is 7.62 mm; the image side inner diameter d01m of the first lens barrel P01 is 8.18 mm; the image side outer diameter D01m of the first lens barrel P01 is 9.04 mm; the spacing distance E between the object side of the first lens barrel P01 and the object side of the first spacing element P1 P01 is 1.6mm; the maximum height L1 of the first lens barrel P01 is 3.22mm; the object side inner diameter d02s of the second lens barrel P02 is 5.01mm; the object side outer diameter D02s of the second lens barrel P02 is 6.57mm; the image side outer diameter D02m of the second lens barrel P02 is 7.1mm; the maximum height L2 of the second lens barrel P02 is 1.22mm; the object side minimum aperture d02smin of the second lens barrel P02 is 4.59mm; the maximum outer diameter OD3 of the third lens E3 is 7.66mm; the maximum outer diameter OD4 of the fourth lens is 5.84mm.

[0213] The optical imaging lens of the second example of the third embodiment satisfies the following relationship:

[0214] ODn / d02s=1.53;

[0215] d01m / D02s=1.25;

[0216] F1 / d02smin=1.63;

[0217] EP01 / CT1=3.18;

[0218] (L1+L2) / TD=1.23;

[0219] f2 / f3 / (d1m / d2s)=-0.07;

[0220] D1m / d1s=1.18;

[0221] d0s1 / d02s=1.52;

[0222] F2 / F1=-1.52;

[0223] OD4 / ODP=1.3;

[0224] Therefore, the optical imaging lens of the second example of the third embodiment meets the numerical values ​​of the optical imaging lens provided in this application.

[0225] Figure 9A axial chromatic aberration curve of the optical imaging lens of the third embodiment when the object distance is infinite, Figure 9B The distortion curve of the optical imaging lens of the third embodiment when the object distance is infinite is shown. Figure 9C axial chromatic aberration curve of the optical imaging lens of the third embodiment when the object distance is 150 mm. Figure 9D FIG. 4 shows the distortion curve of the optical imaging lens of the third embodiment when the object distance is 150 mm. Figures 9A to 9D It can be seen that the optical imaging lens provided in the third embodiment can achieve good imaging quality in both the state of infinite object distance and the state of 150 mm object distance.

[0226] like Figure 10A and Figure 10BAs shown, in the fourth embodiment of the present application, the optical camera lens comprises a first optical component and a second optical component in sequence from the object side to the image side, the first optical component comprises a first lens barrel P01, a first lens group, a first spacing element P1 and a second spacing element P2, the first lens group is arranged in the first lens barrel P01, the first lens group comprises a first lens E1, a second lens E2 and a third lens E3, the first spacing element P1 is arranged between the first lens E1 and the second lens E2, the second spacing element P2 is arranged between the second lens E2 and the third lens E3, the second optical component comprises a second lens barrel P02 and a second lens group, the second lens group is arranged in the second lens barrel P02, the second lens group comprises a fourth lens E4, and the third spacing element P3 is arranged between the third lens E3 and the fourth lens E4. The first lens E1 has positive focal power, the object-side surface S1 of the first lens E1 is convex, and the image-side surface S2 is concave, the second lens E2 has positive focal power, the object-side surface S3 of the second lens E2 is convex, and the image-side surface S4 is convex, the third lens E3 has negative focal power, the object-side surface S5 of the third lens E3 is concave, and the image-side surface S6 is convex, the fourth lens E4 has negative focal power, the object-side surface S7 of the fourth lens E4 is convex, and the image-side surface S8 is concave.

[0227] In the fourth embodiment, the maximum object distance of the optical imaging lens is infinity, and the minimum object distance is 150 mm. When the object distance is infinity, the semi-field angle (Semi-FOV) of the imaging lens is 14.92°, the aperture number (Fno) is 2.42, and the effective focal length is 13.00 mm; when the object distance is 150 mm, the semi-field angle (Semi-FOV) of the imaging lens is 14.20°, the aperture number (Fno) is 2.55, and the effective focal length is 12.41 mm; the effective focal length (f1) of the first lens E1 is 145.30 mm, the effective focal length (f2) of the second lens E2 is 5.48 mm, the effective focal length (f3) of the third lens E3 is -23.38 mm, the effective focal length (f4) of the fourth lens E4 is -14.96 mm, and the aperture (ODP) of the incident surface of the reflective lens P is 4.5 mm.

[0228] Table 7 shows a basic parameter table of the lens of the optical imaging lens of the fourth embodiment, wherein the units of the radius of curvature and thickness are both millimeters (mm), and Table 8 shows a conic coefficient table of the aspherical mirror surface of the optical imaging lens of the fourth embodiment.

[0229] Table 7: Basic parameters of the optical imaging lens of the fourth embodiment

[0230] Surface Number Surface Type Radius of Curvature Thickness Material Conic Coefficient OBJ Spherical Infinity Infinity | 150 STO Spherical Infinity -0.6172 S1 Aspherical 3.7607 0.5557 1.67,19.4 0.1094 S2 Aspherical 3.6772 0.2567 -6.3259 S3 Aspherical 7.3538 1.2412 1.545,56.0 -2.4523 S4 Aspherical -4.7482 0.5932 -10.7631 S5 Aspherical -1.9006 0.6620 1.67,19.4 -0.8109 S6 Aspherical -2.4639 0.23|0.6659 -1.4837 S7 Aspherical 6.5118 0.3000 1.614,24.77 1.2186 S8 Aspherical 3.7539 1.0752 0.2341 S9 Spherical Infinity 2.2500 1.847,23.79 S10 Spherical Infinity -2.2500 1.847,23.79 S11 Spherical Infinity -4.5000 S12 Spherical Infinity -0.2100 1.517,64.2 S13 Spherical Infinity -1.5286 S14 Spherical Infinity

[0231] Table 8: Conic coefficient table of the aspherical mirror surface of the optical imaging lens of the fourth embodiment

[0232] Surface Number A4 A6 A8 A10 A12 A14 A16 s1 1.10E-02 4.41E-03 -1.15E-02 -9.50E-03 -2.86E-03 -1.51E-03 4.55E-05 s2 -1.27E-01 -6.18E-02 1.90E-04 3.92E-03 1.38E-03 6.72E-04 7.84E-04 s3 -1.04E-01 -3.12E-02 -1.06E-02 1.79E-03 -2.33E-03 -2.58E-04 1.03E-03 s4 -6.02E-02 -2.14E-02 -5.74E-03 7.57E-04 -2.12E-03 6.06E-04 2.78E-04 s5 1.12E+00 -5.61E-02 2.40E-02 1.52E-04 1.29E-03 4.99E-04 -3.79E-04 s6 4.59E-01 -1.47E-02 9.67E-03 6.91E-04 4.79E-04 4.38E-04 -2.42E-04 s7 -2.13E-01 4.09E-02 -8.49E-03 2.70E-03 -9.04E-04 4.80E-04 -2.43E-04 s8 -2.42E-01 3.63E-02 -7.90E-03 1.86E-03 -7.27E-04 3.75E-04 -1.67E-04 Surface Number A18 A20 A22 A24 A26 A28 A30 s1 1.40E-04 9.34E-05 1.13E-04 -1.70E-05 0.00E+00 0.00E+00 0.00E+00 s2 5.35E-04 -1.70E-04 -4.04E-05 2.75E-05 5.58E-06 0.00E+00 0.00E+00 s3 8.20E-04 -2.65E-04 -7.17E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 s4 -1.86E-05 -1.79E-04 6.87E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 s5 -6.36E-06 -1.63E-05 4.74E-05 -1.46E-05 0.00E+00 0.00E+00 0.00E+00 s6 7.92E-05 2.23E-05 1.29E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 s7 9.60E-05 -7.03E-05 -1.28E-05 1.26E-05 0.00E+00 0.00E+00 0.00E+00 s8 3.61E-05 -5.68E-05 -1.52E-05 9.26E-06 0.00E+00 0.00E+00 0.00E+00

[0233] The optical imaging lens of the fourth embodiment provides specific examples of the first spacing element P1 and the third spacing element P3 of two sizes.

[0234] The size parameters of the optical imaging lens of the first example of the fourth embodiment are as follows:

[0235] The object side inner diameter d1s of the first spacing element P1 is 5.38 mm; the image side inner diameter d1m of the first spacing element P1 is 5.38 mm; the image side outer diameter D1m of the first spacing element P1 is 7.09 mm; the object side inner diameter d2s of the second spacing element P2 is 5.41 mm; the object side inner diameter d01s of the first lens barrel P01 is 7.25 mm; the image side inner diameter d01m of the first lens barrel P01 is 7.92 mm; the image side outer diameter D01m of the first lens barrel P01 is 8.7 mm; the spacing distance E between the object side of the first lens barrel P01 and the object side of the first spacing element P1 P01 is 1.08mm; the maximum height L1 of the first lens barrel P01 is 3.31mm; the object side inner diameter d02s of the second lens barrel P02 is 5.23mm; the object side outer diameter D02s of the second lens barrel P02 is 6.67mm; the image side outer diameter D02m of the second lens barrel P02 is 7.14mm; the maximum height L2 of the second lens barrel P02 is 1.23mm; the object side minimum aperture d02smin of the second lens barrel P02 is 4.82mm; the maximum outer diameter OD3 of the third lens E3 is 7.24; the maximum outer diameter OD4 of the fourth lens is 6.09mm.

[0236] The optical imaging lens of the first example of the fourth embodiment satisfies the following relationship:

[0237] ODn / d02s=1.38;

[0238] d01m / D02s=1.19;

[0239] F1 / d02smin=1.66;

[0240] EP01 / CT1=1.94;

[0241] (L1+L2) / TD=1.18;

[0242] f2 / f3 / (d1m / d2s)=-0.24;

[0243] D1m / d1s=1.32;

[0244] d0s1 / d02s=1.39;

[0245] F2 / F1=-1.87;

[0246] OD4 / ODP=1.35.

[0247] Therefore, the optical imaging lens of the first example of the fourth embodiment meets the numerical values ​​of the optical imaging lens provided in this application.

[0248] The size parameters of the optical imaging lens of the second example of the fourth embodiment are as follows:

[0249] The inner diameter d1s of the object side of the first spacing element P1 is 5.38 mm; the inner diameter d1m of the image side of the first spacing element P1 is 5.38 mm; the outer diameter D1m of the image side of the first spacing element P1 is 6.14 mm; the inner diameter d2s of the object side of the second spacing element P2 is 5.39 mm; the inner diameter d01s of the object side of the first lens barrel P01 is 7.47 mm; the inner diameter d01m of the image side of the first lens barrel P01 is 8.13 mm; the outer diameter D01m of the image side of the first lens barrel P01 is 8.91 mm; the spacing distance between the object side of the first lens barrel P01 and the object side of the first spacing element P1 EP01 is 1.2mm; the maximum height L1 of the first lens barrel P01 is 3.39mm; the object side inner diameter d02s of the second lens barrel P02 is 5.53mm; the object side outer diameter D02s of the second lens barrel P02 is 6.92mm; the image side outer diameter D02m of the second lens barrel P02 is 7.46mm; the maximum height L2 of the second lens barrel P02 is 1.23mm; the object side minimum aperture d02smin of the second lens barrel P02 is 4.79mm; the maximum outer diameter OD3 of the third lens E3 is 7.41; the maximum outer diameter OD4 of the fourth lens is 6.38mm.

[0250] The optical imaging lens of the second example of the fourth embodiment satisfies the following relationship:

[0251] ODn / d02s=1.34;

[0252] d01m / D02s=1.17;

[0253] F1 / d02smin=1.67;

[0254] EP01 / CT1=2.16;

[0255] (L1+L2) / TD=1.2;

[0256] f2 / f3 / (d1m / d2s)=-0.24;

[0257] D1m / d1s=1.14;

[0258] d0s1 / d02s=1.35;

[0259] F2 / F1=-1.88;

[0260] OD4 / ODP=1.42.

[0261] Therefore, the optical imaging lens of the second example of the fourth embodiment meets the numerical values ​​of the optical imaging lens provided in this application.

[0262] Figure 11A axial chromatic aberration curve of the optical imaging lens of the fourth embodiment when the object distance is infinite, Figure 11B The distortion curve of the optical imaging lens of the fourth embodiment is shown when the object distance is infinite. Figure 11C axial chromatic aberration curve of the optical imaging lens of the fourth embodiment when the object distance is 150 mm, Figure 11D FIG. 4 shows the distortion curve of the optical imaging lens of the fourth embodiment when the object distance is 150 mm. Figures 11A to 11D It can be seen that the optical imaging lens provided in the fourth embodiment can achieve good imaging quality in both the state of infinite object distance and the state of 150 mm object distance.

[0263] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0264] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An optical imaging lens, characterized in that: include: A first optical assembly, the first optical assembly comprising a first lens barrel and a first lens group disposed in the first lens barrel; a second optical assembly, the second optical assembly being arranged on the image side of the first optical assembly, the second optical assembly comprising a second lens barrel and a second lens group arranged in the second lens barrel; as well as A reflective assembly, wherein the first optical assembly or the second optical assembly is adjustably arranged on the object side of the reflective assembly, the reflective assembly comprises a reflective base arranged on the image side of the second optical assembly and a reflective lens arranged on the reflective base, the reflective lens having an incident surface, a reflective surface and a transmissive surface arranged along an optical path, the incident surface facing the image side of the second lens group; The optical imaging lens satisfies the following relationship: 1.3 <ODn / d02s<2.0; 1.1 <d01m / D02s<1.5; Among them, 0Dn is the maximum outer diameter of the lens closest to the image side in the first lens group, d02s is the object side inner diameter of the second lens barrel, d01m is the image side inner diameter of the first lens barrel, and D02s is the object side outer diameter of the second lens barrel.

2. The optical imaging lens according to claim 1, wherein: When the optical imaging lens is in a state of infinite object distance, the optical imaging lens satisfies the following relationship: 38.2mm <f / tan(Semi-FOV)<53.2mm; Wherein, f is the effective focal length of the optical imaging lens, and Semi-FOV is half of the maximum field of view of the optical imaging lens.

3. The optical imaging lens according to claim 1, wherein: The optical imaging lens satisfies the following relationship: 1.6 <F1 / d02smin<1.9; Among them, F1 is the effective focal length of the first lens group of the optical imaging lens, and d02smin is the minimum aperture on the object side of the second lens barrel.

4. The optical imaging lens according to claim 1, wherein: The optical imaging lens satisfies the following relationship: 1.0<(L1+L2) / TD<1.25; Wherein, L1 is the maximum height of the first lens barrel, L2 is the maximum height of the second lens barrel, and TD is the distance on the optical axis from the object side of the first lens group to the image side of the second lens group when the object distance is infinite.

5. The optical imaging lens according to claim 1, wherein: The first lens group includes a first lens and a second lens disposed on the image side of the first lens, the first lens has positive power; the second lens group includes a third lens and a fourth lens disposed on the image side of the third lens, the third lens has negative power, wherein the object side surface of the second lens is a concave surface, the image side surface of the second lens is a convex surface, the object side surface of the third lens is a concave surface, the image side surface of the third lens is a convex surface, the object side surface of the fourth lens is a convex surface, and the image side surface of the fourth lens is a concave surface; The optical imaging lens satisfies the following relationship: -1.4 <F2 / F1<-1.2; 3.0mm≤L1<3.7mm; Wherein, F1 is the effective focal length of the first lens group, F2 is the effective focal length of the second lens group, and L1 is the maximum height of the first lens barrel.

6. The optical imaging lens according to claim 1, wherein: The first lens group includes a first lens, a second lens disposed on the image side of the first lens, and a third lens disposed on the image side of the second lens, the first lens has positive optical power, and the third lens has negative optical power; the second lens group includes a fourth lens disposed on the image side of the third lens, wherein the object side surface of the first lens is a convex surface, the image side surface of the first lens is a concave surface, the object side surface of the second lens is a convex surface, the image side surface of the second lens is a convex surface, the object side surface of the third lens is a concave surface, the image side surface of the third lens is a convex surface, the object side surface of the fourth lens is a convex surface, and the image side surface of the fourth lens is a concave surface; The optical imaging lens satisfies the following relationship: -2.0 <F2 / F1<-1.4; 3.0mm <L1<3.5mm; Wherein, F1 is the effective focal length of the first lens group, F2 is the effective focal length of the second lens group, and L1 is the maximum height of the first lens barrel.

7. The optical imaging lens according to claim 5, characterized in that: The first optical assembly further includes a first spacing element disposed between the first lens and the second lens, the first spacing element at least partially contacting the image side surface of the first lens; The optical imaging lens satisfies the following relationship: 1.0 <EP01 / CT1<3.2; Wherein, EP01 is the spacing distance between the object side of the first lens barrel and the object side of the first spacing element, and CT1 is the center thickness of the first lens.

8. The optical imaging lens according to claim 6, wherein: The first optical assembly further comprises a first spacing element disposed between the first lens and the second lens and a second spacing element disposed between the second lens and the third lens, the first spacing element at least partially contacts the image side surface of the first lens, and the second spacing element at least partially contacts the image side surface of the second lens; The optical imaging lens satisfies the following relationship: -0.3 <f2 / f3 / (d1m / d2s)<0; Among them, f2 is the effective focal length of the second lens, f3 is the effective focal length of the third lens, d1m is the image side inner diameter of the first spacing element, and d2s is the object side inner diameter of the second spacing element.

9. The optical imaging lens according to claim 7, wherein: The second optical assembly further comprises a third spacing element disposed between the third lens and the fourth lens, the third spacing element at least partially contacting the image side surface of the third lens; The optical imaging lens satisfies the following relationship: 5.9<|f2 / f3 / (d1m / d3s)|<11.3; Among them, f2 is the effective focal length of the second lens, f3 is the effective focal length of the third lens, d1m is the image side inner diameter of the first spacing element, and d3s is the object side inner diameter of the third spacing element.

10. The optical imaging lens according to any one of claims 7 to 9, characterized in that: The optical imaging lens satisfies the following relationship: 1.1 <D1m / d1s<1.6; 1.3 <d0s1 / d02s<2.1; Wherein, D1m is the image side outer diameter of the first spacing element, d1s is the object side inner diameter of the first spacing element, d01s is the object side inner diameter of the first lens barrel, and d02s is the object side inner diameter of the second lens barrel.

11. The optical imaging lens according to claim 1, wherein: The optical imaging lens satisfies the following relationship: 1.2 <OD4 / ODP<1.5; OD4 is the maximum outer diameter of the lens closest to the image side in the second lens group, and ODP is the aperture of the incident surface of the reflective lens.

Images