CN116699806A - Optical pick-up lens - Google Patents

Optical pick-up lens Download PDF

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Publication number
CN116699806A
CN116699806A CN202310878257.6A CN202310878257A CN116699806A CN 116699806 A CN116699806 A CN 116699806A CN 202310878257 A CN202310878257 A CN 202310878257A CN 116699806 A CN116699806 A CN 116699806A
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CN
China
Prior art keywords
lens
image side
optical imaging
focal length
bearing
Prior art date
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Pending
Application number
CN202310878257.6A
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Chinese (zh)
Inventor
丁仁
李洋
王泽光
李辉
黄崇建
朱佳栋
丁先翠
闻人建科
戴付建
赵烈烽
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Zhejiang Sunny Optics Co Ltd
Original Assignee
Zhejiang Sunny Optics Co Ltd
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Publication date
Application filed by Zhejiang Sunny Optics Co Ltd filed Critical Zhejiang Sunny Optics Co Ltd
Priority to CN202310878257.6A priority Critical patent/CN116699806A/en
Publication of CN116699806A publication Critical patent/CN116699806A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
    • G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B11/00—Filters or other obturators specially adapted for photographic purposes
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Abstract

The invention provides an optical pick-up lens, comprising: seven lenses, including first lens to seventh lens in order from object side to image side of the optical pick-up lens; the plurality of bearing pieces at least comprise a second bearing piece which is positioned at the image side of the second lens and is at least partially contacted with the image side of the second lens; the lens barrel is used for accommodating the lens and the bearing piece; the half field angle of the optical pick-up lens is larger than 100 degrees; the radius of curvature R3 of the object-side surface of the second lens, the radius of curvature R4 of the image-side surface of the second lens, and the inner diameter d2s of the object-side surface of the second bearing member satisfy: -2.8 < (R3+R4)/d 2s < -0.35. The invention solves the problem of serious stray light of the optical pick-up lens in the prior art.

Description

Optical pick-up lens
Technical Field
The invention relates to the technical field of optical imaging equipment, in particular to an optical imaging lens.
Background
With the rapid progress of the intelligent process of electronic products in recent years, the market has increasingly demanded diversified electronic products, and in many application scenes, the function of man-machine interaction has become increasingly important, so that the electronic products are more sensitive in interaction experience, have a wider field of view, and the optical imaging lens mounted on the electronic products is required to have a larger field of view. However, the seven-lens optical imaging lens with a large field angle adopts a large number of lenses, so that internal stray light is easy to generate on the surface of the lens, and the stray light and light rays participating in imaging reach an imaging surface together to seriously influence the imaging quality. Particularly, if the bearing part at the front end of the optical pick-up lens can not intercept stray light in time, the subsequent stray light energy is further overlapped, so that the subsequent stray light is more difficult to eliminate. Therefore, how to design the shape of the front lens of the optical imaging lens and the inner diameter of the bearing member, while ensuring a large angle of view, reducing stray light is a problem to be solved.
Disclosure of Invention
The present application is directed to an optical imaging lens, which solves the problem of serious stray light in the prior art
In order to achieve the above object, according to one aspect of the present application, there is provided an optical imaging lens comprising: seven lenses, including first lens to seventh lens in order from object side to image side of the optical pick-up lens; the plurality of bearing pieces at least comprise a second bearing piece which is positioned at the image side of the second lens and is at least partially contacted with the image side of the second lens; the lens barrel is used for accommodating the lens and the bearing piece; the half field angle of the optical pick-up lens is larger than 100 degrees; the radius of curvature R3 of the object-side surface of the second lens, the radius of curvature R4 of the image-side surface of the second lens, and the inner diameter d2s of the object-side surface of the second bearing member satisfy: -2.8 < (R3+R4)/d 2s < -0.35.
According to still another aspect of the present application, there is provided an optical imaging lens including: seven lenses, including first lens to seventh lens in order from object side to image side of the optical pick-up lens; the plurality of bearing pieces at least comprise a second bearing piece which is positioned at the image side of the second lens and is at least partially contacted with the image side of the second lens; the lens barrel is used for accommodating the lens and the bearing piece; the half field angle of the optical pick-up lens is larger than 100 degrees; the plurality of supporters at least comprises a fifth supporter which is positioned on the image side of the fifth lens and at least partially contacts with the image side of the fifth lens, and the effective focal length f6 of the sixth lens, the air interval T56 of the fifth lens and the sixth lens on the optical axis of the optical imaging lens, the maximum thickness CP5 of the fifth supporter and the inner diameter d5m of the image side of the fifth supporter satisfy the following conditions: -3.4 < f6 (T56/CP 5)/d 5m < -0.5. The application provides a seven-piece optical pick-up lens with a half field angle larger than 100 degrees, because the optical pick-up lens with an ultra-wide angle is easy to generate internal reflection stray light, the application is beneficial to reducing the generation of stray light by arranging a plurality of bearing parts, and simultaneously, the distance between a fifth lens and a sixth lens, the effective focal length of the sixth lens, the thickness and the inner diameter of the fifth bearing part are controlled, so that the light rays entering the sixth lens and the seventh lens are reasonably controlled, and the generation of stray light is reduced.
According to still another aspect of the present application, there is provided an optical imaging lens including: seven lenses, including first lens to seventh lens in order from object side to image side of the optical pick-up lens; the plurality of bearing pieces at least comprise a second bearing piece which is positioned at the image side of the second lens and is at least partially contacted with the image side of the second lens; the lens barrel is used for accommodating the lens and the bearing piece; the half field angle of the optical pick-up lens is larger than 100 degrees; the effective focal length f3 of the third lens, the outer diameter D2s of the object side surface of the second bearing member, the inner diameter D2s of the object side surface of the second bearing member and the effective focal length f2 of the second lens satisfy the following conditions: -17.0mm < f3 x (D2 s-D2 s)/f 2 < -9.8mm. The application provides a seven-piece optical pick-up lens with a half field angle larger than 100 degrees, because the optical pick-up lens with an ultra-wide angle is easy to generate internal reflection stray light, the application is beneficial to reducing the generation of stray light by arranging a plurality of bearing parts, and simultaneously can intercept the stray light at the edge of the lens by controlling the effective focal lengths of a second lens and a third lens and the inner diameter and the outer diameter of the second bearing part.
According to another aspect of the present application, there is provided an optical imaging lens including: seven lenses, including first lens to seventh lens in order from object side to image side of the optical pick-up lens; the plurality of bearing pieces at least comprise a second bearing piece which is positioned at the image side of the second lens and is at least partially contacted with the image side of the second lens; the lens barrel is used for accommodating the lens and the bearing piece; the half field angle of the optical pick-up lens is larger than 100 degrees; the plurality of bearing pieces at least comprises a fourth bearing piece which is positioned on the image side of the fourth lens and is at least partially contacted with the image side of the fourth lens, a fifth bearing piece which is positioned on the image side of the fifth lens and is at least partially contacted with the image side of the fifth lens, the curvature radius R8 of the image side of the fourth lens, the interval EP45 between the fourth bearing piece and the fifth bearing piece, the center thickness CT5 of the fifth lens on the optical axis of the optical imaging lens, the curvature radius R9 of the object side of the fifth lens and the effective focal length f5 of the fifth lens are as follows: -0.75 < r8 (ep45+ct5)/(r9×f5) < -0.35. The application provides a seven-piece optical pick-up lens with a half field angle larger than 100 degrees, because the optical pick-up lens with an ultra-wide angle is easy to generate internal reflection stray light, the application is beneficial to reducing the generation of stray light by arranging a plurality of bearing parts, and simultaneously controls the effective focal length, the curvature radius and the center thickness of a fourth lens and a fifth lens and the distance between the fourth bearing part and the fifth bearing part, thereby effectively improving the processability and the light adjustment capability of the fourth lens and the fifth lens and reducing the generation of stray light.
Further, the outer diameter D0s of the object side end surface of the lens barrel, the outer diameter D0m of the image side end surface of the lens barrel, and the effective focal length f of the optical imaging lens satisfy the following conditions: 1.6 < (D0 s-D0 m)/f < 2.7.
Further, the effective focal length f1 of the first lens, the inner diameter D0s of the object side end surface of the lens barrel, the outer diameter D2s of the object side surface of the second bearing member, and the effective focal length f2 of the second lens satisfy: f1 is more than or equal to 2.7 (D0 s/D2 s)/f 2 is less than 4.3.
Further, the combined focal length f12 of the first lens and the second lens, the air space T12 of the first lens and the second lens on the optical axis of the optical imaging lens, the air space T23 of the second lens and the third lens on the optical axis, the maximum thickness CP2 of the second bearing member, and the inner diameter d2s of the object side surface of the second bearing member satisfy: -1.9mm < f12 (t12+t23+cp 2)/d 2s < -1.3mm.
Further, the plurality of supporters at least includes a fourth supporter located at an image side of the fourth lens and at least partially contacting with an image side of the fourth lens, and the effective focal length f4 of the fourth lens, the inner diameter d4s of the object side of the fourth supporter, the effective focal length f5 of the fifth lens, and the inner diameter d4m of the image side of the fourth supporter satisfy: 2.0 < f4/d4s+f5/d4m < 2.9.
Further, the plurality of supporters at least includes a fifth supporter located at an image side of the fifth lens and at least partially contacting the image side of the fifth lens, and the effective focal length f6 of the sixth lens, the air interval T56 between the fifth lens and the sixth lens on the optical axis of the optical imaging lens, the maximum thickness CP5 of the fifth supporter, and the inner diameter d5m of the image side of the fifth supporter satisfy: -3.4 < f6 (T56/CP 5)/d 5m < -0.5.
Further, the effective focal length f3 of the third lens, the outer diameter D2s of the object side surface of the second bearing member, the inner diameter D2s of the object side surface of the second bearing member, and the effective focal length f2 of the second lens satisfy: -17.0mm < f3 x (D2 s-D2 s)/f 2 < -9.8mm.
Further, the radius of curvature R6 of the image side surface of the third lens element, the radius of curvature R5 of the object side surface of the third lens element, and the inner diameter d2m of the image side surface of the second bearing member satisfy the following conditions: 1.6 < (R6-R5)/d 2m < 2.7.
Further, the plurality of supporters at least includes a fourth supporter located at an image side of the fourth lens and at least partially contacting with an image side of the fourth lens, a fifth supporter located at an image side of the fifth lens and at least partially contacting with an image side of the fifth lens, a radius of curvature R8 of the image side of the fourth lens, a spacing EP45 between the fourth supporter and the fifth supporter, a center thickness CT5 of the fifth lens on an optical axis of the optical imaging lens, a radius of curvature R9 of an object side of the fifth lens, and an effective focal length f5 of the fifth lens satisfy: -0.75 < r8 (ep45+ct5)/(r9×f5) < -0.35.
Further, the plurality of supporters at least includes a fifth supporter located at an image side of the fifth lens and at least partially contacting with an image side of the fifth lens, a sixth supporter located at an image side of the sixth lens and at least partially contacting with an image side of the sixth lens, an effective focal length f6 of the sixth lens, a space EP56 between the fifth supporter and the sixth supporter, an effective focal length f7 of the seventh lens, a maximum thickness CP6 of the sixth supporter, a center thickness CT6 of the sixth lens on an optical axis of the optical imaging lens, and a center thickness CT7 of the seventh lens on the optical axis satisfy: 2.0 < |f6 xEP 56+f7 xCP6|/(CT 6 xCT 7) < 9.0.
Further, the plurality of supporters at least includes a fourth supporter located at an image side of the fourth lens and at least partially contacting the image side of the fourth lens, and the effective focal length f4 of the fourth lens, the abbe number V4 of the fourth lens, the outer diameter D4s of the object side of the fourth supporter, and the inner diameter D4s of the object side of the fourth supporter satisfy: 21.0 < f 4V 4/(D4s+d4s) < 35.5.
Further, the plurality of supporters at least includes a sixth supporter located at an image side of the sixth lens and at least partially contacting the image side of the sixth lens, and the effective focal length f7 of the seventh lens, the outer diameter D6m of the image side of the sixth supporter, the effective focal length f6 of the sixth lens, and the outer diameter D6s of the object side of the sixth supporter satisfy: 1.1 < f 7D 6 m/(f 6D 6 s) < 2.9.
Further, two lenses of the seven lenses are glass lenses, and five lenses are plastic lenses.
Further, the first lens and the fourth lens are spherical glass lenses.
By applying the technical scheme of the application, the optical imaging lens comprises seven lenses, a plurality of bearing pieces and a lens barrel, wherein the seven lenses sequentially comprise a first lens and a seventh lens from the object side to the image side of the optical imaging lens; the plurality of bearing pieces at least comprise a second bearing piece which is positioned on the image side of the second lens and is at least partially contacted with the image side of the second lens; the lens barrel is used for accommodating the lens and the bearing piece; the half field angle of the optical pick-up lens is larger than 100 degrees; the radius of curvature R3 of the object-side surface of the second lens, the radius of curvature R4 of the image-side surface of the second lens, and the inner diameter d2s of the object-side surface of the second bearing member satisfy: -2.8 < (R3+R4)/d 2s < -0.35.
The application provides a seven-piece optical pick-up lens with a half field angle larger than 100 degrees, because the optical pick-up lens with a super wide angle is easy to generate internal reflection stray light, the application is beneficial to reducing the generation of stray light by arranging a plurality of bearing parts, and simultaneously controls the bearing parts between the front end lens and the lens, especially the curvature radius of the second lens and the inner diameter of the second bearing part, can restrict the stray light generated by the fact that edge light strikes a structural area to a certain extent, intercepts the stray light, and effectively reduces the edge stray light.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 is a schematic view showing the structure of an optical imaging lens according to an alternative embodiment of the present application;
FIG. 2 is a schematic view of stray light paths of an optical imaging lens according to an alternative embodiment of the present application;
fig. 3 is a schematic structural diagram of an optical imaging lens according to a first embodiment of the present application;
FIGS. 4 and 5 show on-axis chromatic aberration curves and astigmatism curves, respectively, for a first embodiment of the application;
fig. 6 is a schematic structural diagram of an optical imaging lens according to a second embodiment of the present application;
fig. 7 is a schematic diagram showing the structure of an optical imaging lens according to a third embodiment of the present application;
fig. 8 and 9 show on-axis chromatic aberration curves and astigmatism curves, respectively, for a third embodiment of the application;
fig. 10 is a schematic diagram showing the structure of an optical imaging lens according to a fourth embodiment of the present application;
fig. 11 is a schematic structural diagram of an optical imaging lens according to a fifth embodiment of the present application;
FIGS. 12 and 13 show on-axis chromatic aberration curves and astigmatism curves, respectively, for embodiment five of the present application;
Fig. 14 is a schematic structural diagram showing an optical imaging lens according to a sixth embodiment of the present invention;
fig. 15 is a schematic structural diagram showing an optical imaging lens according to a seventh embodiment of the present invention;
FIGS. 16 and 17 show on-axis chromatic aberration curves and astigmatism curves, respectively, for embodiment seven of the present invention;
fig. 18 is a schematic diagram showing the structure of an optical imaging lens according to an eighth embodiment of the present invention;
FIG. 19 shows a stray light energy pattern of an optical pick-up lens in accordance with an alternative embodiment of the invention;
fig. 20 shows a stray light energy diagram of an optical imaging lens in the related art.
Wherein the above figures include the following reference numerals:
10. a bearing protrusion; p0, lens barrel; e1, a first lens; s1, an object side surface of a first lens; s2, an image side surface of the first lens; e2, a second lens; s3, the object side surface of the second lens; s4, an image side surface of the second lens; p2, a second bearing piece; e3, a third lens; s5, the object side surface of the third lens is provided; s6, an image side surface of the third lens; p3, a third bearing piece; e4, a fourth lens; s7, an object side surface of the fourth lens; s8, an image side surface of the fourth lens is provided; p4, a fourth bearing piece; p4b, a fourth auxiliary bearing piece; e5, a fifth lens; s9, an object side surface of the fifth lens; s10, an image side surface of the fifth lens; p5, a fifth bearing piece; e6, a sixth lens; s11, an object side surface of the sixth lens; s12, an image side surface of the sixth lens; p6, a sixth bearing piece; e7, seventh lens; s13, an object side surface of the seventh lens; s14, an image side surface of the seventh lens.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
It is noted that all 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 unless otherwise indicated.
In the present application, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the component itself in the vertical, upright or gravitational direction; also, for ease of understanding and description, "inner and outer" refers to inner and outer relative to the profile of each component itself, but the above-mentioned orientation terms are not intended to limit the present application.
It should be noted that in the present specification, the expressions of first, second, third, etc. are only used to distinguish one feature from another feature, and do not represent any limitation on the feature. Accordingly, a first lens discussed below may also be referred to as a second lens or a third lens without departing from the teachings of the present application.
In the drawings, the thickness, size, and shape of the lenses have been slightly exaggerated for convenience of explanation. Specifically, the spherical or aspherical shape 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 figures are merely examples and are not drawn to scale.
Herein, the paraxial region refers to a region near the optical axis. If the lens surface is convex and the convex position is not defined, then the lens surface is convex at least in the paraxial region; if the lens surface is concave and the concave position is not defined, it means that the lens surface is concave at least in the paraxial region. The determination of the surface shape in the paraxial region can be performed by a determination method by a person skilled in the art by positive or negative determination of the concave-convex with R value (R means the radius of curvature of the paraxial region, and generally means the R value on a lens database (lens data) in optical software). In the object side surface, when the R value is positive, the object side surface is judged to be convex, and when the R value is negative, the object side surface is judged to be concave; in the image side, the concave surface is determined when the R value is positive, and the convex surface is determined when the R value is negative.
The invention provides an optical imaging lens for solving the problem of serious stray light of the optical imaging lens in the prior art.
First embodiment
As shown in fig. 1 to 19, the optical imaging lens includes seven lenses including first to seventh lenses in order from an object side to an image side of the optical imaging lens, a plurality of holders, and a lens barrel P0; the plurality of bearing pieces at least comprise a second bearing piece which is positioned on the image side of the second lens and is at least partially contacted with the image side of the second lens; the lens barrel P0 is used for accommodating a lens and a bearing piece; the half field angle of the optical pick-up lens is larger than 100 degrees; the radius of curvature R3 of the object-side surface of the second lens, the radius of curvature R4 of the image-side surface of the second lens, and the inner diameter d2s of the object-side surface of the second bearing member satisfy: -2.8 < (R3+R4)/d 2s < -0.35.
The application provides a seven-piece optical pick-up lens with a half field angle larger than 100 degrees, because the optical pick-up lens with a super wide angle is easy to generate internal reflection stray light, the application is beneficial to reducing the generation of stray light by arranging a plurality of bearing parts, and simultaneously controls the bearing parts between the front end lens and the lens, especially the curvature radius of the second lens and the inner diameter of the second bearing part, can restrict the stray light generated by the fact that edge light strikes a structural area to a certain extent, intercepts the stray light, and effectively reduces the edge stray light. Fig. 2 shows a schematic diagram of the stray light path of an alternative embodiment of the application. As shown in fig. 19, the present application can have less stray light energy than the prior art shown in fig. 20 by providing the bearing member.
The application also prevents the second lens from being excessively bent by controlling the curvature radius of the object side surface and the image side surface of the second lens, is beneficial to reducing the lens processing and forming difficulty, and can ensure that the optical pick-up lens has better capability of balancing chromatic aberration and distortion, thereby improving the imaging quality.
Preferably, the radius of curvature R3 of the object side surface of the second lens, the radius of curvature R4 of the image side surface of the second lens, and the inner diameter d2s of the object side surface of the second bearing member satisfy: -2.790 < (R3+R4)/d 2s < -0.355.
In the present embodiment, the outer diameter D0s of the object side end surface of the lens barrel P0, the outer diameter D0m of the image side end surface of the lens barrel P0, and the effective focal length f of the optical imaging lens satisfy the following conditions: 1.6 < (D0 s-D0 m)/f < 2.7. By limiting (D0 s-D0 m)/f to a reasonable range, the outer diameters of the object side end face and the image side end face of the lens barrel P0 are reasonably controlled, the outer diameter of the lens barrel P0 can be effectively controlled, structural interference can not occur when the lens barrel P0 is matched with a module, meanwhile, the effective focal length of the optical pick-up lens is reasonably controlled, the distance between an image plane and the lens can be directly controlled, and the length of the module can be controlled within a design range. Preferably, 1.605 < (D0 s-D0 m)/f < 2.695.
In the present embodiment, the effective focal length f1 of the first lens, the inner diameter D0s of the object side end surface of the lens barrel P0, the outer diameter D2s of the object side surface of the second bearing member, and the effective focal length f2 of the second lens satisfy the following conditions: f1 is more than or equal to 2.7 (D0 s/D2 s)/f 2 is less than 4.3. The effective focal lengths of the first lens and the second lens are controlled by limiting f1 (D0 s/D2 s)/f 2 in a reasonable range, so that the spherical aberration range of the lens can be effectively adjusted to balance spherical aberration generated by other lens groups of the lens, meanwhile, the annular area of the second bearing part can be effectively controlled by reasonably designing the outer diameter of the second bearing part, deformation is not easy to occur, and the stability and consistency of assembly are improved. Preferably, the method comprises the steps of,
in the present embodiment, the combined focal length f12 of the first lens and the second lens, the air space T12 of the first lens and the second lens on the optical axis of the optical imaging lens, the air space T23 of the second lens and the third lens on the optical axis, the maximum thickness CP2 of the second bearing member, and the inner diameter d2s of the object side surface of the second bearing member satisfy: -1.9mm < f12 (t12+t23+cp 2)/d 2s < -1.3mm. Through limiting f12 (T12+T23+CP2)/d 2s in a reasonable range, the combined focal length and the corresponding air interval of the first lens and the second lens are controlled, the contribution range of focal power and the contribution rate of negative spherical aberration can be reasonably controlled, meanwhile, the inner diameter of the second bearing piece is controlled, the edge invalid light can be reasonably shielded, and the imaging quality is improved. Preferably, -1.855mm < f12, (t12+t23+cp 2)/d 2s < -1.305mm.
In this embodiment, the plurality of supporters at least includes a fourth supporter located on the image side of the fourth lens and at least partially contacting the image side of the fourth lens, and the effective focal length f4 of the fourth lens, the inner diameter d4s of the object side of the fourth supporter, the effective focal length f5 of the fifth lens, and the inner diameter d4m of the image side of the fourth supporter satisfy: 2.0 < f4/d4s+f5/d4m < 2.9. The f4/d4s+f5/d4m is limited in a reasonable range, the effective focal lengths of the fourth lens and the fifth lens are reasonably distributed, the focal power of the middle section of the system is controlled in a smaller range, the deflection angle of light can be reduced, the sensitivity of the system is effectively reduced, meanwhile, the inner diameter of the fourth bearing piece is controlled, the reasonable light throughput is obtained, and the brightness required by design is achieved. Preferably, 2.05 < f4/d4s+f5/d4m < 2.85.
In this embodiment, the plurality of supporters includes at least a fifth supporter located on the image side of the fifth lens and at least partially contacting the image side of the fifth lens, and the effective focal length f6 of the sixth lens, the air interval T56 between the fifth lens and the sixth lens on the optical axis of the optical imaging lens, the maximum thickness CP5 of the fifth supporter, and the inner diameter d5m of the image side of the fifth supporter satisfy: -3.4 < f6 (T56/CP 5)/d 5m < -0.5. By limiting f6 x (T56/CP 5)/d 5m to a reasonable range, the light rays can be effectively and properly diverged by controlling the effective focal length of the sixth lens and the air gap, thereby obtaining the image plane size required by design, and simultaneously, by controlling the inner diameter and thickness of the fifth bearing member, the light rays incident on the sixth lens and the seventh lens are reasonably controlled, and the generation of parasitic light is reduced. Preferably, -3.380 < f6 (T56/CP 5)/d 5m < -0.505.
In the present embodiment, the effective focal length f3 of the third lens element, the outer diameter D2s of the object side surface of the second bearing member, the inner diameter D2s of the object side surface of the second bearing member, and the effective focal length f2 of the second lens element satisfy the following conditions: -17.0mm < f3 x (D2 s-D2 s)/f 2 < -9.8mm. The effective focal lengths of the second lens and the third lens are controlled by limiting f3 (D2 s-D2 s)/f 2 within a reasonable range, so that the overall field curvature of the lens can be balanced, and meanwhile, the assembly step difference can be controlled within a reasonable range by matching with the inner diameter and the outer diameter of the second bearing piece, and the annular area of the second bearing piece is controlled, so that the assembly stability is improved. Preferably, -16.95mm < f3 (D2 s-D2 s)/f 2 < -9.85mm.
In the present embodiment, the radius of curvature R6 of the image side surface of the third lens, the radius of curvature R5 of the object side surface of the third lens, and the inner diameter d2m of the image side surface of the second bearing member satisfy the following conditions: 1.6 < (R6-R5)/d 2m < 2.7. The radius of curvature of the third lens is controlled by limiting (R6-R5)/d 2m in a reasonable range, so that the lens processing and forming are facilitated, meanwhile, the light convergence degree can be effectively controlled, the system brightness is improved, meanwhile, the inner diameter of the second bearing piece is controlled, stray light rays can be effectively absorbed, and the imaging quality is improved. Preferably 1.63 < (R6-R5)/d 2m < 2.69.
In this embodiment, the plurality of supporters includes at least a fourth supporter located on the image side of the fourth lens and at least partially contacting the image side of the fourth lens, a fifth supporter located on the image side of the fifth lens and at least partially contacting the image side of the fifth lens, a radius of curvature R8 of the image side of the fourth lens, a spacing EP45 between the fourth supporter and the fifth supporter, a center thickness CT5 of the fifth lens on the optical axis of the optical imaging lens, a radius of curvature R9 of the object side of the fifth lens, and an effective focal length f5 of the fifth lens, which satisfy: -0.75 < r8 (ep45+ct5)/(r9×f5) < -0.35. By limiting R8 (EP 45+CT5)/(R9 f 5) within a reasonable range, the processability and light ray adjusting capability of the fourth lens and the fifth lens can be effectively improved, and meanwhile, the center thickness and interval parameters of the lenses are matched, so that the distance of each accessory on the optical axis can be effectively controlled, and the overall length of the lens can be effectively controlled. Preferably, -0.74 < R8 (EP 45 +CT5)/(R9 f 5) < -0.36.
In this embodiment, the plurality of abutments includes at least a fifth abutment located on the image side of the fifth lens and at least partially contacting the image side of the fifth lens, a sixth abutment located on the image side of the sixth lens and at least partially contacting the image side of the sixth lens, an effective focal length f6 of the sixth lens, a spacing EP56 between the fifth abutment and the sixth abutment, an effective focal length f7 of the seventh lens, a maximum thickness CP6 of the sixth abutment, a center thickness CT6 of the sixth lens on the optical axis of the optical imaging lens, and a center thickness CT7 of the seventh lens on the optical axis, which satisfy: 2.0 < |f6 xEP 56+f7 xCP6|/(CT 6 xCT 7) < 9.0. By limiting the ratio of (f6×ep 56+f7) |/(CT 6×ct 7) to a reasonable range, the effective focal lengths of the sixth lens and the seventh lens can be controlled, the astigmatic quantity of the system can be controlled, and the edge thicknesses of the two lenses can be reasonably controlled by matching the thickness of the seventh lens with the intervals of the fifth and sixth bearing members and the intervals of the sixth and seventh bearing members, so that the lens thickness ratio parameters in the design requirements can be obtained. Preferably, 2.2 < |f6×ep56+f7×cp 6|/(CT 6×ct 7) < 8.9.
In this embodiment, the plurality of supporters includes at least a fourth supporter located on the image side of the fourth lens and at least partially contacting the image side of the fourth lens, and the effective focal length f4 of the fourth lens, the abbe number V4 of the fourth lens, the outer diameter D4s of the object side of the fourth supporter, and the inner diameter D4s of the object side of the fourth supporter satisfy: 21.0 < f 4V 4/(D4s+d4s) < 35.5. By limiting f4×v4/(d4s+d4s) within a reasonable range, the effective focal length and abbe number of the fourth lens are controlled so that the light transmittance of the fourth lens can be reasonably controlled, the overall illuminance is improved, and meanwhile, the inner diameter and the outer diameter of the fourth bearing part are controlled so as to obtain a reasonable annular area, thereby absorbing stray light and reducing deformation risk. Preferably, 21.05 < f4×v4/(d4s+d4s) < 35.4.
In this embodiment, the plurality of supporters includes at least a sixth supporter located on the image side of the sixth lens and at least partially contacting the image side of the sixth lens, and the effective focal length f7 of the seventh lens, the outer diameter D6m of the image side of the sixth supporter, the effective focal length f6 of the sixth lens, and the outer diameter D6s of the object side of the sixth supporter satisfy: 1.1 < f 7D 6 m/(f 6D 6 s) < 2.9. By limiting f 7D 6 m/(f 6D 6 s) within a reasonable range, the effective focal lengths of the sixth lens and the seventh lens are controlled, so that the angle of incident light rays can be well joined, a reasonable overall focal length is obtained, the position of a module chip is in a reasonable design position, and meanwhile, the outer diameters of the two sides of the sixth bearing piece are controlled, a better bearing gradient is obtained, and the assembly stability is ensured. Preferably, 1.15 < f7×d6m/(f6×d6s) < 2.85.
In the present embodiment, two lenses among the seven lenses are glass lenses, and five lenses are plastic lenses. The arrangement can enable the optical pick-up lens to have the capability of obtaining incident light rays with larger angles, so that the visual field of the optical pick-up lens is wider, more application scenes are met, meanwhile, the hardness of the glass lens can effectively avoid a plurality of scratch defects in appearance, so that the using condition of the lens is wider, the lens is matched with reasonable inter-lens bearing design, and the lens has good stability and can keep higher imaging level.
In the embodiment, the first lens and the fourth lens are spherical glass lenses, so that the influence of scratch on imaging of the appearance of the lens is avoided.
Second embodiment
As shown in fig. 1 to 19, the optical imaging lens includes seven lenses including first to seventh lenses in order from an object side to an image side of the optical imaging lens, a plurality of holders, and a lens barrel P0; the plurality of bearing pieces at least comprise a second bearing piece which is positioned on the image side of the second lens and is at least partially contacted with the image side of the second lens; the lens barrel P0 is used for accommodating a lens and a bearing piece; the half field angle of the optical pick-up lens is larger than 100 degrees; the plurality of supporters at least comprises a fifth supporter which is positioned on the image side of the fifth lens and at least partially contacts with the image side of the fifth lens, and the effective focal length f6 of the sixth lens, the air interval T56 of the fifth lens and the sixth lens on the optical axis of the optical imaging lens, the maximum thickness CP5 of the fifth supporter and the inner diameter d5m of the image side of the fifth supporter satisfy the following conditions: -3.4 < f6 (T56/CP 5)/d 5m < -0.5.
The application provides a seven-piece optical pick-up lens with a half field angle larger than 100 degrees, because the optical pick-up lens with an ultra-wide angle is easy to generate internal reflection stray light, the application is beneficial to reducing the generation of stray light by arranging a plurality of bearing parts, and simultaneously, the distance between a fifth lens and a sixth lens, the effective focal length of the sixth lens, the thickness and the inner diameter of the fifth bearing part are controlled, so that the light rays entering the sixth lens and the seventh lens are reasonably controlled, and the generation of stray light is reduced. Fig. 2 shows a schematic diagram of the stray light path of an alternative embodiment of the application. As shown in fig. 19, the present application can have less stray light energy than the prior art shown in fig. 20 by providing the bearing member.
The application can also effectively disperse the light rays at the sixth lens through the control, thereby obtaining the image plane size required by design.
Preferably, the effective focal length f6 of the sixth lens, the air interval T56 of the fifth lens and the sixth lens on the optical axis of the optical imaging lens, the maximum thickness CP5 of the fifth bearing, and the inner diameter d5m of the image side surface of the fifth bearing satisfy: 3.380 < f6 (T56/CP 5)/d 5m < -0.505.
Other parameter types in the first embodiment may also be included in the present embodiment, and will not be described in detail herein.
Third embodiment
As shown in fig. 1 to 19, the optical imaging lens includes seven lenses including first to seventh lenses in order from an object side to an image side of the optical imaging lens, a plurality of holders, and a lens barrel P0; the plurality of bearing pieces at least comprise a second bearing piece which is positioned on the image side of the second lens and is at least partially contacted with the image side of the second lens; the lens barrel P0 is used for accommodating a lens and a bearing piece; the half field angle of the optical pick-up lens is larger than 100 degrees; the effective focal length f3 of the third lens, the outer diameter D2s of the object side surface of the second bearing member, the inner diameter D2s of the object side surface of the second bearing member and the effective focal length f2 of the second lens satisfy the following conditions: -17.0mm < f3 x (D2 s-D2 s)/f 2 < -9.8mm.
The application provides a seven-piece optical pick-up lens with a half field angle larger than 100 degrees, because the optical pick-up lens with an ultra-wide angle is easy to generate internal reflection stray light, the application is beneficial to reducing the generation of stray light by arranging a plurality of bearing parts, and simultaneously can intercept the stray light at the edge of the lens by controlling the effective focal lengths of a second lens and a third lens and the inner diameter and the outer diameter of the second bearing part. Fig. 2 shows a schematic diagram of the stray light path of an alternative embodiment of the application. As shown in fig. 19, the present application can have less stray light energy than the prior art shown in fig. 20 by providing the bearing member.
The application can balance the overall field curvature of the lens, and simultaneously control the annular area of the second bearing piece, and control the assembly step difference within a reasonable range, thereby being beneficial to improving the assembly stability.
Preferably, the effective focal length f3 of the third lens, the outer diameter D2s of the object side surface of the second bearing member, the inner diameter D2s of the object side surface of the second bearing member, and the effective focal length f2 of the second lens satisfy: -16.95mm < f3 x (D2 s-D2 s)/f 2 < -9.85mm.
Other parameter types in the first embodiment may also be included in the present embodiment, and will not be described in detail herein.
Fourth embodiment
As shown in fig. 1 to 19, the optical imaging lens includes seven lenses including first to seventh lenses in order from an object side to an image side of the optical imaging lens, a plurality of holders, and a lens barrel P0; the plurality of bearing pieces at least comprise a second bearing piece which is positioned on the image side of the second lens and is at least partially contacted with the image side of the second lens; the lens barrel P0 is used for accommodating a lens and a bearing piece; the half field angle of the optical pick-up lens is larger than 100 degrees; the plurality of bearing pieces at least comprises a fourth bearing piece which is positioned on the image side of the fourth lens and is at least partially contacted with the image side of the fourth lens, a fifth bearing piece which is positioned on the image side of the fifth lens and is at least partially contacted with the image side of the fifth lens, the curvature radius R8 of the image side of the fourth lens, the interval EP45 between the fourth bearing piece and the fifth bearing piece, the center thickness CT5 of the fifth lens on the optical axis of the optical imaging lens, the curvature radius R9 of the object side of the fifth lens and the effective focal length f5 of the fifth lens are as follows: -0.75 < r8 (ep45+ct5)/(r9×f5) < -0.35.
The application provides a seven-piece optical pick-up lens with a half field angle larger than 100 degrees, because the optical pick-up lens with an ultra-wide angle is easy to generate internal reflection stray light, the application is beneficial to reducing the generation of stray light by arranging a plurality of bearing parts, and simultaneously controls the effective focal length, the curvature radius and the center thickness of a fourth lens and a fifth lens and the distance between the fourth bearing part and the fifth bearing part, thereby effectively improving the processability and the light adjustment capability of the fourth lens and the fifth lens and reducing the generation of stray light. Fig. 2 shows a schematic diagram of the stray light path of an alternative embodiment of the application. As shown in fig. 19, the present application can have less stray light energy than the prior art shown in fig. 20 by providing the bearing member.
The application can also effectively control the distance of each accessory on the optical axis and effectively control the whole length of the lens.
Preferably, the radius of curvature R8 of the image side surface of the fourth lens element, the interval EP45 between the fourth bearing member and the fifth bearing member, the center thickness CT5 of the fifth lens element on the optical axis of the optical imaging lens, the radius of curvature R9 of the object side surface of the fifth lens element, and the effective focal length f5 of the fifth lens element satisfy: -0.74 < r8 (ep45+ct5)/(r9×f5) < -0.36.
Other parameter types in the first embodiment may also be included in the present embodiment, and will not be described in detail herein.
Optionally, the optical imaging lens may further include a filter for correcting color deviation and/or a protective glass for protecting a photosensitive element located on the imaging surface.
The optical imaging lens in the present application may employ a plurality of lenses, for example, seven lenses as described above. By reasonably distributing the effective focal length, the surface shape, the center thickness of each lens, the axial distance between each lens and the like, the aperture of the optical imaging lens can be effectively increased, the sensitivity of the lens can be reduced, and the processability of the lens can be improved, so that the optical imaging lens is more beneficial to production and processing and can be suitable for portable electronic equipment such as smart phones and the like.
In the present application, the mirror surface of at least one lens is an aspherical mirror surface. The aspherical lens is characterized in that: the curvature varies continuously from the center of the lens to the periphery of the lens. Unlike a spherical lens having a constant curvature from the center of the lens to the periphery of the lens, an aspherical lens has a better radius of curvature characteristic, and has advantages of improving distortion aberration and improving astigmatic aberration. By adopting the aspherical lens, aberration occurring at the time of imaging can be eliminated as much as possible, thereby improving imaging quality.
However, it will be appreciated by those skilled in the art that the number of lenses constituting the optical imaging lens can be varied to achieve the respective results and advantages described in the present specification without departing from the technical solution claimed in the present application. For example, although the description has been made by taking seven lenses as an example in the embodiment, the optical imaging lens is not limited to include seven lenses. The optical imaging lens may further include other numbers of lenses, if desired.
Fig. 1 shows a schematic configuration of an optical imaging lens of the present application. Parameters D2s, D6S, D m and the like are also marked in fig. 1 so as to clearly and intuitively understand the meaning of the parameters. In order to facilitate the display of the structure of the optical imaging lens and the specific surface shape, these parameters will not be reflected in the drawings when specific examples are described later.
Wherein Dis refers to the outer diameter of the object side surface of the i-th bearing member, dis refers to the inner diameter of the object side surface of the i-th bearing member, dim refers to the outer diameter of the image side surface of the i-th bearing member, dim refers to the inner diameter of the image side surface of the i-th bearing member, wherein i takes on values from 1, 2, 3, 4, 5, 6. EPij refers to the distance between the image side surface of the ith bearing element and the object side surface of the jth bearing element along the optical axis, wherein j is greater than i, i is a value from 1, 2, 3, 4 and 5, and j is a value from 2, 3, 4, 5 and 6. d0s is the inner diameter of the object side end surface of the lens barrel P0, d0m is the inner diameter of the image side end surface of the lens barrel P0, the object side end surface of the lens barrel P0 is the surface of the lens barrel P0 closest to the object side, and the image side end surface of the lens barrel P0 is the surface of the lens barrel P0 closest to the image side.
Examples of specific surface types and parameters applicable to the optical imaging lens of the above embodiment are further described below with reference to the drawings.
Any one of the following examples one to eight is applicable to all the embodiments of the present application.
Example 1
As shown in fig. 3 to 5, an optical imaging lens according to a first embodiment of the present application is described.
As shown in fig. 3, the optical camera lens sequentially includes, from an object side to an image side, a first lens element E1, a second lens element E2, a second bearing member P2, a third lens element E3, a fourth lens element E4, a fourth bearing member P4, a fifth lens element E5, a fifth bearing member P5, a sixth lens element E6, a sixth bearing member P6, and a seventh lens element E7. Wherein, the first lens E1 and the second lens E2 are directly supported, and a supporting protrusion 10 is formed on an inner wall of the lens barrel P0 facing the optical axis direction, so that an image side surface of the third lens E3 and an object side surface of the fourth lens E4 are supported on the supporting protrusion 10, and the supporting protrusion 10 functions as a supporting member.
As shown in fig. 3, the object side of the first lens element is S1, the image side of the first lens element is S2, the object side of the second lens element is S3, the image side of the second lens element is S4, the object side of the third lens element is S5, the image side of the third lens element is S6, the object side of the fourth lens element is S7, the image side of the fourth lens element is S8, the object side of the fifth lens element is S9, the image side of the fifth lens element is S10, the object side of the sixth lens element is S11, the image side of the sixth lens element is S12, the object side of the seventh lens element is S13, and the image side of the seventh lens element is S14.
Table 1 shows a basic structural parameter table of an optical imaging lens of the first embodiment, in which the units of radius of curvature, thickness/distance, and effective focal length are all millimeter mm.
Face number Surface type Radius of curvature Thickness of (L) Refractive index Abbe number Coefficient of taper
OBJ Spherical surface Infinity is provided Infinity is provided
S1 Spherical surface 7.2008 0.3834 1.76 52.30
S2 Spherical surface 3.1135 2.1922
S3 Aspherical surface -3.5467 0.6763 1.54 55.90 0.0000
S4 Aspherical surface 2.5575 0.4294 0.0000
S5 Aspherical surface 3.1304 0.6477 1.67 19.20 0.0000
S6 Aspherical surface 7.7056 0.6374 0.0000
STO Spherical surface Infinity is provided 0.0782
S7 Spherical surface -8.9785 1.5470 1.62 60.40
S8 Spherical surface -2.2146 0.1320
S9 Aspherical surface 4.0857 1.7476 1.54 55.90 0.0000
S10 Aspherical surface -2.0600 0.1099 0.0000
S11 Aspherical surface -1.0373 0.2102 1.67 19.20 -1.0000
S12 Aspherical surface -3.0121 0.5201 0.0000
S13 Aspherical surface 1.7857 1.1146 1.54 55.90 -1.0000
S14 Aspherical surface -112.2870 1.1093 0.0000
S15 Spherical surface Infinity is provided 0.3000 1.52 64.20
S16 Spherical surface Infinity is provided 0.2227
S17 Spherical surface Infinity is provided
TABLE 1
Also shown in table 1 are an object side surface S15 of the filter, an image side surface S16 of the filter, and an imaging surface S17.
In this embodiment, the first lens element and the fourth lens element are spherical lens elements, and the object-side surface and the image-side surface of the other lens elements are aspheric, and the surface shape of each aspheric lens element can be defined by, but not limited to, the following aspheric formula:
wherein x is the distance vector height from the vertex of the aspheric surface when the aspheric surface is at the position with the height h along the optical axis direction; c is the paraxial curvature of the aspherical surface, c=1/R, i.e. paraxial curvature c is the reciprocal of the radius of curvature R in table 1 above; k is a conic coefficient; ai is the correction coefficient of the aspherical i-th order. The higher order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28, A30 that can be used for each of the aspherical mirrors in this example are given in Table 2 below.
Face number A4 A6 A8 A10 A12 A14 A16
S3 1.5908E+00 -2.5780E-01 1.0963E-01 -4.8550E-02 2.4248E-02 -1.2344E-02 6.2471E-03
S4 3.2944E-01 -5.0099E-02 2.5944E-02 -1.1248E-02 1.7758E-03 -1.6095E-03 -3.8118E-04
S5 2.6516E-01 2.3628E-02 8.6075E-03 -2.3524E-03 -5.4068E-04 -1.1666E-03 -5.6269E-04
S6 1.5884E-01 1.7325E-02 3.8139E-03 2.6837E-04 2.2004E-05 -1.5922E-04 -6.5711E-05
S9 1.5299E-02 6.6744E-03 5.6054E-04 -6.6389E-04 -3.2728E-04 -2.8669E-04 -4.2555E-05
S10 3.3626E-01 4.9912E-02 1.6681E-02 -1.0204E-03 4.7131E-03 -3.0561E-03 1.4221E-03
S11 1.0338E+00 -2.1747E-01 5.0580E-02 -1.3430E-02 7.8214E-03 -4.5541E-03 2.5924E-03
S12 9.5913E-01 -1.2323E-01 2.6896E-02 -3.7350E-03 3.0794E-03 -1.5635E-03 1.8371E-03
S13 -1.4233E+00 2.4296E-01 -5.2205E-02 9.8849E-03 -6.1575E-03 5.0716E-04 1.8140E-03
S14 6.0866E-03 -6.0733E-02 3.6455E-02 -2.4477E-02 5.4798E-03 -6.6255E-03 1.9041E-03
Face number A18 A20 A22 A24 A26 A28 A30
S3 -3.1152E-03 1.5361E-03 -7.4173E-04 3.4056E-04 -1.6265E-04 6.4808E-05 -2.2696E-05
S4 -1.0229E-04 2.0191E-05 1.7756E-04 1.0295E-04 9.0109E-05 1.5305E-05 5.1529E-06
S5 -3.7893E-04 -1.5174E-04 -4.6008E-05 1.7176E-05 2.4972E-05 1.4393E-05 6.5269E-06
S6 -4.6241E-05 -1.2640E-05 1.2886E-06 9.4583E-07 2.1266E-07 -2.7861E-06 -8.9264E-07
S9 1.3675E-05 1.9660E-05 1.2016E-05 3.1306E-06 5.5778E-06 3.6666E-06 1.5633E-06
S10 -6.6906E-04 2.5841E-04 -3.2731E-05 5.2176E-05 9.8118E-06 -4.4438E-05 1.2803E-05
S11 -1.5717E-03 7.6949E-04 -3.6618E-04 2.1345E-04 -6.1026E-05 -2.2475E-05 -4.8981E-06
S12 -1.1820E-03 5.7462E-04 -4.3099E-04 1.4759E-04 -9.7535E-05 1.5621E-05 -1.8784E-05
S13 1.2124E-03 -1.7521E-04 -2.8392E-04 -2.0054E-04 -4.1725E-05 -2.1383E-05 -2.7611E-05
S14 1.2552E-03 5.9855E-04 -1.7507E-04 -2.9737E-04 -1.3731E-04 4.0771E-05 1.2294E-05
TABLE 2
Fig. 4 shows an on-axis chromatic aberration curve of the optical imaging lens according to the first embodiment, which indicates a convergence focus deviation of light rays of different wavelengths after passing through the optical imaging lens. Fig. 5 shows an astigmatism curve of the optical imaging lens of the first embodiment, which indicates meridional image surface curvature and sagittal image surface curvature.
As can be seen from fig. 4 and 5, the optical imaging lens according to the first embodiment can achieve good imaging quality.
Example two
The difference from the first embodiment is that parameters of the lens barrel P0 and the bearing member are different.
As shown in fig. 6, an optical imaging lens according to a second embodiment of the present application is described. For brevity, a description of portions similar to those of the first embodiment will be omitted.
Parameters such as the radius of curvature, the center thickness, etc. of the first to seventh lenses of the optical imaging lens and the distance between the lenses thereof and the high order image coefficient are the same as those shown in tables 1 and 2, but the parameters such as the lens barrel P0, the thickness of the bearing member, the inner diameter of the bearing member and the outer diameter of the bearing member and the distance between the bearing members are different. Or the primary structure for imaging is the same, while the secondary structure for imaging is different. The imaging quality of the optical imaging lens of the present embodiment is thus as shown in fig. 4 and 5.
As shown in fig. 6, a fourth auxiliary bearing P4b is further included between the fourth lens element E4 and the fifth lens element E5, and the fourth auxiliary bearing P4b bears against the image side of the fourth bearing P4. The bearing stability is improved between the fourth lens E4 and the fifth lens E5 with large intervals, and meanwhile, the interception effect on stray light is improved.
Example III
The difference from the first embodiment is that parameters of the lens barrel P0, the bearing member, and the lens are different.
As shown in fig. 7 to 9, an optical imaging lens of a third embodiment of the present application is described. For brevity, a description of portions similar to those of the first embodiment will be omitted.
As shown in fig. 7, the optical camera lens sequentially includes, from an object side to an image side, a first lens element E1, a second lens element E2, a second bearing member P2, a third lens element E3, a third bearing member P3, a fourth lens element E4, a fourth bearing member P4, a fifth lens element E5, a fifth bearing member P5, a sixth lens element E6, a sixth bearing member P6, and a seventh lens element E7. The first lens E1 and the second lens E2 are directly supported, and have enough supporting area in the structural part of the lens to ensure the supporting stability.
Table 3 shows a basic structural parameter table of an optical imaging lens of the third embodiment, in which the units of radius of curvature, thickness/distance, and effective focal length are all millimeter mm.
TABLE 3 Table 3
Also shown in table 3 are the object side S15 of the filter, the image side S16 of the filter, and the imaging plane S17.
In this embodiment, the first lens element and the fourth lens element are spherical lens elements, and the object-side surface and the image-side surface of the other lens element are aspheric, and table 4 shows that the surface type of each aspheric lens element with the higher order coefficients applicable to each aspheric lens element in this embodiment can be defined by, but not limited to, equation (1) in embodiment one.
Face number A4 A6 A8 A10 A12 A14 A16
S3 5.7217E-01 -3.5313E-02 -4.2892E-03 5.6836E-03 -3.2930E-03 1.7232E-03 -6.2639E-04
S4 -1.3207E-01 4.0579E-02 -1.9485E-02 -6.3698E-03 -1.8791E-03 -5.7103E-04 -2.8759E-05
S5 2.3020E-01 7.1231E-02 3.5707E-03 -1.9734E-03 -1.6535E-03 -1.3647E-03 -6.9233E-04
S6 2.0283E-01 2.7751E-02 4.6158E-03 5.2855E-04 -2.0946E-04 -2.1591E-04 -1.2944E-04
S9 1.4821E-02 1.5733E-02 -1.1296E-03 -9.7341E-04 -3.0317E-04 -1.6557E-04 -1.0871E-04
S10 4.8790E-01 -9.0806E-02 4.1147E-02 -2.0313E-02 1.2234E-02 -9.1566E-03 5.2233E-03
S11 1.4446E+00 -3.1253E-01 8.2901E-02 -2.6888E-02 1.5158E-02 -8.8196E-03 4.5418E-03
S12 1.5168E+00 -1.8313E-01 4.9276E-02 -1.0034E-02 5.4001E-03 -2.1500E-03 1.1242E-03
S13 -9.8749E-01 7.9127E-02 -2.3776E-02 -6.5096E-03 2.0690E-03 -1.8303E-03 1.3903E-03
S14 -6.2269E-01 1.3680E-01 -3.2583E-02 -1.4183E-02 1.0785E-03 1.8054E-03 1.6667E-03
Face number A18 A20 A22 A24 A26 A28 A30
S3 2.6629E-04 -9.5472E-05 3.1796E-05 -1.0338E-05 1.4034E-05 -6.8974E-06 9.4341E-06
S4 7.7884E-05 1.0824E-04 1.0768E-04 5.8275E-05 2.7587E-05 1.6815E-05 1.3463E-05
S5 -3.4982E-04 -1.2164E-04 -2.6439E-05 4.4614E-06 6.5878E-06 8.5542E-06 3.3642E-06
S6 -5.2309E-05 -2.4252E-05 -3.1705E-06 -2.9648E-06 2.8701E-06 9.5077E-07 1.4022E-06
S9 -3.5242E-05 -2.3940E-05 5.8148E-06 6.5421E-06 6.8604E-06 3.5131E-06 3.2568E-06
S10 -2.7862E-03 1.3333E-03 -6.3372E-04 2.8775E-04 -3.5993E-05 -2.6075E-05 7.7328E-06
S11 -2.3594E-03 1.2572E-03 -5.9187E-04 2.8667E-04 -5.3882E-05 1.1135E-05 -1.5881E-05
S12 -6.3054E-04 4.7432E-04 -2.2893E-04 1.4380E-04 -5.8681E-05 2.1322E-05 -1.0852E-05
S13 -6.3838E-04 6.0715E-04 -2.8732E-04 1.5931E-04 -1.4203E-04 2.0970E-05 -5.8801E-05
S14 -8.1389E-05 -5.4386E-05 -3.7385E-04 -1.1711E-04 -9.5838E-05 2.2879E-05 -6.2513E-06
TABLE 4 Table 4
Fig. 8 shows an on-axis chromatic aberration curve of the optical imaging lens of the third embodiment, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the optical imaging lens. Fig. 9 shows an astigmatism curve of the optical imaging lens of the third embodiment, which represents meridional image plane curvature and sagittal image plane curvature.
As can be seen from fig. 8 and 9, the optical imaging lens according to the third embodiment can achieve good imaging quality.
Example IV
The difference from the third embodiment is that parameters of the lens barrel P0 and the bearing member are different.
As shown in fig. 10, an optical imaging lens according to a fourth embodiment of the present application is described. For brevity, a description of portions similar to those of the first embodiment will be omitted.
Parameters such as the radius of curvature, the center thickness, etc. of the first to seventh lenses of the optical imaging lens and the distance between the lenses thereof and the high order image coefficient are the same as shown in tables 3 and 4, but these parameters are different in the lens barrel P0, the thickness of the bearing member, the inner diameter of the bearing member and the outer diameter of the bearing member, and the distance between the bearing members. Or the primary structure for imaging is the same, while the secondary structure for imaging is different. The imaging quality of the optical imaging lens of the present embodiment is thus as shown in fig. 8 and 9.
As shown in fig. 10, a third bearing member P3 is not provided between the third lens E3 and the fourth lens E4, and a bearing projection 10 is formed on an inner wall surface of the lens barrel P0 facing in the optical axis direction so that an image side surface of the third lens E3 and an object side surface of the fourth lens E4 bear against the bearing projection 10, so that the bearing projection 10 functions as a bearing member.
Example five
The difference from the first embodiment is that parameters of the lens barrel P0, the bearing member, and the lens are different.
As shown in fig. 11 to 13, an optical imaging lens of a fifth embodiment of the present application is described. For brevity, a description of portions similar to those of the first embodiment will be omitted.
As shown in fig. 11, the optical camera lens sequentially includes, from an object side to an image side, a first lens element E1, a second lens element E2, a second bearing member P2, a third lens element E3, a third bearing member P3, a fourth lens element E4, a fourth bearing member P4, a fifth lens element E5, a fifth bearing member P5, a sixth lens element E6, a sixth bearing member P6, and a seventh lens element E7. The first lens E1 and the second lens E2 are directly supported, and have enough supporting area in the structural part of the lens to ensure the supporting stability.
Table 5 shows a basic structural parameter table of an optical imaging lens of the fifth embodiment, in which the units of radius of curvature, thickness/distance, and effective focal length are all millimeter mm.
TABLE 5
Also shown in table 5 are the object side S15 of the filter, the image side S16 of the filter, and the imaging plane S17.
In this embodiment, the first lens element and the fourth lens element are spherical lens elements, and the object-side surface and the image-side surface of the other lens element are aspheric, and table 6 shows that the surface type of each aspheric lens element with the higher order coefficients applicable to each aspheric lens element in this embodiment can be defined by, but not limited to, equation (1) in embodiment one.
Face number A4 A6 A8 A10 A12 A14 A16
S3 1.3147E+00 -1.9533E-01 6.9223E-02 -2.9513E-02 1.4162E-02 -6.8252E-03 3.4144E-03
S4 3.6869E-01 -1.2314E-02 1.4544E-02 -9.6944E-03 3.7261E-04 -1.1500E-03 -2.8983E-04
S5 3.3448E-01 4.8918E-02 6.4727E-03 -1.6071E-03 -1.3639E-03 -1.3056E-03 -8.3229E-04
S6 2.1234E-01 2.7020E-02 4.9098E-03 5.5554E-04 -2.1344E-04 -2.7849E-04 -1.7147E-04
S9 -4.0255E-02 1.9365E-02 -9.6178E-04 -1.7255E-03 -3.5951E-04 -1.3467E-04 1.4773E-05
S10 1.1105E-01 1.0505E-01 -1.5604E-02 4.4517E-03 -1.0138E-03 -7.2534E-04 6.3672E-04
S11 1.4238E+00 -2.8615E-01 7.4217E-02 -1.8191E-02 6.5297E-03 -2.8129E-03 1.3897E-03
S12 1.4684E+00 -1.7623E-01 4.6615E-02 -4.1675E-03 5.0369E-04 5.3870E-04 3.4534E-04
S13 -1.5412E+00 -1.5968E-02 -1.5701E-01 -4.0751E-02 -4.3315E-02 -2.1172E-02 -1.7577E-02
S14 8.4858E-02 2.5909E-02 -5.1351E-04 -7.2859E-03 -1.6017E-03 -9.9713E-04 -3.0810E-04
Face number A18 A20 A22 A24 A26 A28 A30
S3 -1.5165E-03 7.6468E-04 -3.3265E-04 1.6507E-04 -7.8111E-05 2.3845E-05 -1.5288E-05
S4 -1.5904E-04 6.7368E-05 1.0973E-04 9.5812E-05 6.9927E-05 3.7461E-05 1.2630E-05
S5 -4.5181E-04 -1.7657E-04 -4.5570E-05 1.4970E-05 2.5584E-05 1.6839E-05 7.0418E-06
S6 -6.6470E-05 -9.6400E-06 1.2052E-05 1.1985E-05 6.3229E-06 8.8269E-07 -2.9014E-07
S9 6.8453E-05 1.1163E-05 -1.0915E-05 -1.9540E-05 -1.2752E-05 -5.1524E-06 -2.4106E-06
S10 -3.8089E-04 1.4511E-04 -2.3485E-04 7.9461E-05 1.3936E-04 -4.1877E-05 4.5128E-06
S11 -6.2259E-04 3.2675E-04 -3.1917E-04 -1.2802E-05 1.4374E-05 4.1696E-05 6.8453E-07
S12 1.0811E-04 1.0524E-04 -9.9681E-05 3.4607E-06 -9.8609E-05 4.2409E-07 -3.6047E-06
S13 -1.0873E-02 -8.2004E-03 -5.3951E-03 -3.7457E-03 -2.3767E-03 -1.4305E-03 -6.3216E-04
S14 -1.5902E-04 2.5144E-05 3.1576E-05 8.8816E-05 4.1484E-05 4.0075E-05 2.9828E-06
TABLE 6
Fig. 12 shows an on-axis chromatic aberration curve of the optical imaging lens of the fifth embodiment, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the optical imaging lens. Fig. 13 shows an astigmatism curve of the optical imaging lens of the fifth embodiment, which indicates meridional image surface curvature and sagittal image surface curvature.
As can be seen from fig. 12 and 13, the optical imaging lens according to the fifth embodiment can achieve good imaging quality.
Example six
The difference from the fifth embodiment is that parameters of the lens barrel P0 and the bearing member are different.
As shown in fig. 14, an optical imaging lens of a sixth embodiment of the present application is described. For brevity, a description of portions similar to those of the first embodiment will be omitted.
Parameters such as the radius of curvature, the center thickness, etc. of the first to seventh lenses of the optical imaging lens and the distance between the lenses thereof and the high order image coefficient are the same as shown in tables 5 and 6, but these parameters are different in the lens barrel P0, the thickness of the bearing member, the inner diameter of the bearing member and the outer diameter of the bearing member, and the distance between the bearing members. Or the primary structure for imaging is the same, while the secondary structure for imaging is different. The imaging quality of the optical imaging lens of the present embodiment is thus as shown in fig. 12 and 13.
As shown in fig. 14, a fourth auxiliary bearing P4b is further included between the fourth lens element E4 and the fifth lens element E5, and the fourth auxiliary bearing P4b bears against the image side of the fourth bearing P4. The bearing stability is improved between the fourth lens E4 and the fifth lens E5 with large intervals, and meanwhile, the interception effect on stray light is improved.
Example seven
The difference from the first embodiment is that parameters of the lens barrel P0, the bearing member, and the lens are different.
As shown in fig. 15 to 17, an optical imaging lens of a seventh embodiment of the present application is described. For brevity, a description of portions similar to those of the first embodiment will be omitted.
As shown in fig. 15, the optical camera lens sequentially includes, from an object side to an image side, a first lens element E1, a second lens element E2, a second bearing element P2, a third lens element E3, a third bearing element P3, a fourth lens element E4, a fourth bearing element P4, a fourth auxiliary bearing element P4b, a fifth lens element E5, a fifth bearing element P5, a sixth lens element E6, a sixth bearing element P6, and a seventh lens element E7. The first lens E1 and the second lens E2 are directly supported, and have enough supporting area in the structural part of the lens to ensure the supporting stability.
Table 7 shows a basic structural parameter table of an optical imaging lens of the seventh embodiment, in which the units of radius of curvature, thickness/distance, and effective focal length are all millimeter mm.
TABLE 7
Also shown in table 7 are the object side S15 of the filter, the image side S16 of the filter, and the imaging plane S17.
In this embodiment, the first lens element and the fourth lens element are spherical lens elements, and the object-side surface and the image-side surface of the other lens element are aspheric, and table 8 shows that the surface type of each aspheric lens element with the higher order coefficients applicable to each aspheric lens element in this embodiment can be defined by, but not limited to, equation (1) in embodiment one.
Face number A4 A6 A8 A10 A12 A14 A16
S3 3.7043E-01 -2.4285E-04 -1.7242E-02 1.1955E-02 -6.7380E-03 3.6592E-03 -1.6989E-03
S4 -2.5589E-01 2.2683E-02 -3.1416E-02 -6.8221E-03 -3.6248E-03 -8.8289E-04 -3.1138E-04
S5 1.7294E-01 6.4574E-02 1.7857E-03 -1.3905E-03 -1.5691E-03 -1.1833E-03 -5.8058E-04
S6 1.7169E-01 2.4336E-02 3.8643E-03 4.3961E-04 -2.1580E-04 -1.8844E-04 -1.1003E-04
S9 8.4255E-03 1.4065E-02 -1.0818E-03 -8.2365E-04 -2.6626E-04 -1.2395E-04 -1.0078E-04
S10 4.6334E-01 -9.0681E-02 3.9817E-02 -1.8909E-02 1.0956E-02 -8.1253E-03 5.0603E-03
S11 1.2516E+00 -2.7261E-01 7.3074E-02 -2.4064E-02 1.3513E-02 -7.9383E-03 4.4634E-03
S12 1.3074E+00 -1.5704E-01 4.3323E-02 -9.5264E-03 5.0312E-03 -1.9754E-03 1.0243E-03
S13 -8.9195E-01 6.8026E-02 -1.7182E-02 -9.9074E-03 2.8114E-03 -1.9297E-03 1.5176E-03
S14 -6.2216E-01 1.4152E-01 -2.7070E-02 -1.2490E-02 -1.5643E-03 9.3625E-04 1.1056E-03
Face number A18 A20 A22 A24 A26 A28 A30
S3 8.4155E-04 -3.9423E-04 1.8455E-04 -8.5619E-05 5.0637E-05 -2.2148E-05 1.3169E-05
S4 -3.3213E-05 2.2739E-05 5.6676E-05 3.8518E-05 1.5260E-05 6.6507E-06 1.0236E-05
S5 -2.8714E-04 -9.1343E-05 -1.5211E-05 1.2662E-05 8.4813E-06 8.8928E-06 2.9258E-06
S6 -3.9626E-05 -1.7576E-05 8.8746E-07 -1.9122E-07 3.7358E-06 1.5446E-06 1.6277E-06
S9 -4.3653E-05 -2.5755E-05 9.1466E-06 7.2673E-06 8.2929E-06 4.3498E-06 3.8019E-06
S10 -2.8728E-03 1.2084E-03 -4.6579E-04 1.7520E-04 7.0447E-06 -2.8619E-05 6.9204E-06
S11 -2.3439E-03 1.0595E-03 -4.4244E-04 2.0281E-04 -2.7670E-05 6.1147E-06 -1.1449E-05
S12 -5.3828E-04 4.0046E-04 -2.0839E-04 1.1786E-04 -5.4693E-05 8.6558E-06 -1.1134E-05
S13 -5.9462E-04 6.7786E-04 -3.1682E-04 1.5851E-04 -1.7482E-04 1.1278E-05 -7.0127E-05
S14 1.8861E-04 3.4296E-04 -7.7330E-05 -2.4829E-05 -1.1237E-04 -2.7146E-05 -2.4329E-06
TABLE 8
Fig. 16 shows an on-axis chromatic aberration curve of the optical imaging lens of the seventh embodiment, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the optical imaging lens. Fig. 17 shows an astigmatism curve of the optical imaging lens of the seventh embodiment, which represents meridional image plane curvature and sagittal image plane curvature.
As can be seen from fig. 16 and 17, the optical imaging lens according to the seventh embodiment can achieve good imaging quality.
Example eight
The difference from the seventh embodiment is that parameters of the lens barrel P0 and the bearing member are different.
As shown in fig. 18, an optical imaging lens according to an eighth embodiment of the present application is described. For brevity, a description of portions similar to those of the first embodiment will be omitted.
Parameters such as the radius of curvature, the center thickness, etc. of the first to seventh lenses of the optical imaging lens and the distance between the lenses thereof and the high order image coefficient are the same as shown in tables 7 and 8, but these parameters are different in the lens barrel P0, the thickness of the bearing member, the inner diameter of the bearing member, the outer diameter of the bearing member, and the distance between the bearing members. Or the primary structure for imaging is the same, while the secondary structure for imaging is different. The imaging quality of the optical imaging lens of the present embodiment is thus as shown in fig. 16 and 17.
In summary, examples one to eight satisfy the relationships shown in table 9, respectively.
Condition/example 1 2 3 4 5 6 7 8
f6*(T56/CP5)/d5m -3.36 -2.35 -1.08 -1.04 -1.43 -0.82 -0.67 -0.51
|f6*EP56+f7*CP6|/(CT6*CT7) 2.44 2.24 4.19 3.38 8.70 8.66 7.39 7.26
(R3+R4)/d2s -0.37 -0.36 -2.04 -1.89 -0.45 -0.39 -2.78 -2.78
(D0s-D0m)/f 1.66 1.61 1.86 2.21 2.68 2.68 2.14 2.14
f3*(D2s-d2s)/f2(mm) -14.56 -14.56 -14.65 -13.05 -16.93 -10.78 -9.86 -16.38
f1*(d0s/D2s)/f2 3.66 3.66 2.97 3.04 2.70 3.47 4.21 2.99
f12*(T12+T23+CP2)/d2s(mm) -1.55 -1.52 -1.58 -1.47 -1.84 -1.59 -1.31 -1.31
(R6-R5)/d2m 1.69 1.65 2.62 2.43 2.68 2.31 2.52 2.52
f4/d4s+f5/d4m 2.32 2.75 2.06 2.08 2.34 2.82 2.35 2.32
f4*V4/(D4s+d4s) 35.23 34.47 26.19 34.56 26.96 24.52 21.17 21.06
R8*(EP45+CT5)/(R9*f5) -0.47 -0.63 -0.53 -0.52 -0.38 -0.57 -0.73 -0.73
f7*D6m/(f6*D6s) 1.34 1.32 2.73 2.60 1.19 1.19 2.81 2.81
TABLE 9
Table 10 shows part of parameters of the optical imaging lenses of the first to eighth embodiments.
Table 10
Table 11 shows effective focal lengths of the first to seventh lenses of the optical imaging lenses of the first to eighth embodiments.
Parameters/embodiments 1 2 3 4 5 6 7 8
f(mm) 1.25 1.25 1.99 1.99 1.38 1.38 1.73 1.73
f1(mm) -7.54 -7.54 -7.87 -7.87 -7.51 -7.51 -6.75 -6.75
f2(mm) -2.62 -2.62 -3.33 -3.33 -3.53 -3.53 -2.81 -2.81
f3(mm) 7.37 7.37 6.35 6.35 8.09 8.09 5.18 5.18
f4(mm) 4.34 4.34 6.01 6.01 5.85 5.85 5.19 5.19
f5(mm) 2.79 2.79 3.23 3.23 3.92 3.92 2.70 2.70
f6(mm) -2.44 -2.44 -4.13 -4.13 -5.03 -5.03 -3.56 -3.56
f7(mm) 3.23 3.23 10.85 10.85 5.97 5.97 10.00 10.00
Semi-FOV(°) 103.2 103.2 103.2 103.2 103.2 103.2 103.2 103.2
TABLE 11
The application also provides an imaging device, wherein the electronic photosensitive element can be a photosensitive coupling element (CCD) or a complementary metal oxide semiconductor element (CMOS). The imaging device may be a stand alone imaging device such as a digital camera or an imaging module integrated on a mobile electronic device such as a cell phone. The imaging device is equipped with the optical imaging lens described above.
It will be apparent that the embodiments described above are merely some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. An optical imaging lens, comprising:
seven lenses, wherein the seven lenses sequentially comprise a first lens, a second lens and a third lens from the object side to the image side of the optical imaging lens;
the plurality of bearing pieces at least comprise a second bearing piece which is positioned on the image side of the second lens and is at least partially contacted with the image side of the second lens;
A lens barrel for accommodating the lens and the bearing member;
the half field angle of the optical pick-up lens is larger than 100 degrees;
the curvature radius R3 of the object side surface of the second lens, the curvature radius R4 of the image side surface of the second lens and the inner diameter d2s of the object side surface of the second bearing member satisfy the following conditions: -2.8 < (R3+R4)/d 2s < -0.35.
2. The optical imaging lens according to claim 1, wherein an outer diameter D0s of an object side end surface of the lens barrel, an outer diameter D0m of an image side end surface of the lens barrel, and an effective focal length f of the optical imaging lens satisfy: 1.6 < (D0 s-D0 m)/f < 2.7.
3. The optical imaging lens according to claim 1, wherein an effective focal length f1 of the first lens, an inner diameter D0s of an object side end surface of the lens barrel, an outer diameter D2s of an object side surface of the second bearing member, and an effective focal length f2 of the second lens satisfy: f1 is more than or equal to 2.7 (D0 s/D2 s)/f 2 is less than 4.3.
4. The optical imaging lens according to claim 1, wherein a combined focal length f12 of the first lens and the second lens, an air space T12 of the first lens and the second lens on an optical axis of the optical imaging lens, an air space T23 of the second lens and the third lens on the optical axis, a maximum thickness CP2 of the second bearing member, and an inner diameter d2s of an object side surface of the second bearing member satisfy: -1.9mm < f12 (t12+t23+cp 2)/d 2s < -1.3mm.
5. The optical imaging lens as claimed in claim 1, wherein the plurality of supporters includes at least a fourth supporter located on and at least partially contacting an image side of the fourth lens, and an effective focal length f4 of the fourth lens, an inner diameter d4s of an object side of the fourth supporter, an effective focal length f5 of a fifth lens, and an inner diameter d4m of an image side of the fourth supporter satisfy: 2.0 < f4/d4s+f5/d4m < 2.9.
6. The optical imaging lens according to claim 1, wherein a plurality of the supporters includes at least a fifth supporter located on an image side of a fifth lens and at least partially contacting the image side of the fifth lens, and an effective focal length f6 of a sixth lens, an air interval T56 of the fifth lens and the sixth lens on an optical axis of the optical imaging lens, a maximum thickness CP5 of the fifth supporter, and an inner diameter d5m of the image side of the fifth supporter satisfy: -3.4 < f6 (T56/CP 5)/d 5m < -0.5.
7. The optical imaging lens according to claim 1, wherein an effective focal length f3 of the third lens, an outer diameter D2s of the object side surface of the second bearing member, an inner diameter D2s of the object side surface of the second bearing member, and an effective focal length f2 of the second lens satisfy: -17.0mm < f3 x (D2 s-D2 s)/f 2 < -9.8mm.
8. The optical imaging lens according to claim 1, wherein a radius of curvature R6 of an image side surface of the third lens, a radius of curvature R5 of an object side surface of the third lens, and an inner diameter d2m of an image side surface of the second bearing member satisfy: 1.6 < (R6-R5)/d 2m < 2.7.
9. The optical imaging lens according to claim 1, wherein a plurality of the abutments include at least a fourth abutment located on an image side of a fourth lens and at least partially in contact with the image side of the fourth lens, a fifth abutment located on an image side of a fifth lens and at least partially in contact with the image side of the fifth lens, a radius of curvature R8 of the image side of the fourth lens, a spacing EP45 between the fourth abutment and the fifth abutment, a center thickness CT5 of the fifth lens on an optical axis of the optical imaging lens, a radius of curvature R9 of an object side of the fifth lens, and an effective focal length f5 of the fifth lens satisfy: -0.75 < r8 (ep45+ct5)/(r9×f5) < -0.35.
10. The optical imaging lens according to any one of claims 1 to 9, wherein a plurality of the abutments include at least a fifth abutment located on an image side of a fifth lens and at least partially in contact with the image side of the fifth lens, a sixth abutment located on an image side of a sixth lens and at least partially in contact with the image side of the sixth lens, an effective focal length f6 of the sixth lens, an interval EP56 between the fifth abutment and the sixth abutment, an effective focal length f7 of the seventh lens, a maximum thickness CP6 of the sixth abutment, a center thickness CT6 of the sixth lens on an optical axis of the optical imaging lens, and a center thickness CT7 of the seventh lens on the optical axis satisfy: 2.0 < |f6 xEP 56+f7 xCP6|/(CT 6 xCT 7) < 9.0.
CN202310878257.6A 2023-07-17 2023-07-17 Optical pick-up lens Pending CN116699806A (en)

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