CN110109235B - Optical imaging lens - Google Patents

Optical imaging lens Download PDF

Info

Publication number
CN110109235B
CN110109235B CN201910475300.8A CN201910475300A CN110109235B CN 110109235 B CN110109235 B CN 110109235B CN 201910475300 A CN201910475300 A CN 201910475300A CN 110109235 B CN110109235 B CN 110109235B
Authority
CN
China
Prior art keywords
lens
optical imaging
optical
imaging lens
prism
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201910475300.8A
Other languages
Chinese (zh)
Other versions
CN110109235A (en
Inventor
周鑫
赵烈烽
戴付建
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Sunny Optics Co Ltd
Original Assignee
Zhejiang Sunny Optics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Sunny Optics Co Ltd filed Critical Zhejiang Sunny Optics Co Ltd
Priority to CN201910475300.8A priority Critical patent/CN110109235B/en
Publication of CN110109235A publication Critical patent/CN110109235A/en
Application granted granted Critical
Publication of CN110109235B publication Critical patent/CN110109235B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/17—Bodies with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera

Landscapes

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

Abstract

The present application provides an optical imaging lens, comprising: and a prism configured such that light incident to the prism in a direction of an X-axis, which is perpendicular to the Y-axis, is reflected and then emitted from the prism in a direction of the Y-axis. The optical imaging lens further sequentially comprises, from the prism to the image side along the Y optical axis: a first lens with positive focal power, the object side surface of which is a convex surface; a second lens with negative focal power, the object side of which is a concave surface; a third lens with optical power, the object side surface of which is a convex surface; a fourth lens element with optical power having a concave object-side surface and a convex image-side surface; a fifth lens having optical power. The central thickness CT1 of the prism on the optical axis and the central thickness CT2 of the first lens on the optical axis meet 1.0 < CT2/CT1 < 2.0.

Description

Optical imaging lens
Technical Field
The present application relates to an optical imaging lens, and in particular to an optical imaging lens including a prism and five lenses having optical power.
Background
The imaging function of portable electronic devices is increasingly demanded, and the size of an optical imaging lens provided thereon is also limited because the portable electronic devices are expected to have smaller sizes.
For example, the mobile phone industry tends to take multiple shots by using multiple optical imaging lenses, and the multiple optical imaging lenses respectively highlight different optical characteristics, wherein the multiple optical imaging lenses generally comprise a long focal lens with a longer focal length, and the optical characteristics of the long focal lens are limited due to the limitation of the thickness of the mobile phone, so that the imaging effects of the mobile phone, such as background blurring, object magnification and the like, are limited. Therefore, how to realize a tele lens that has good optical characteristics and can meet the miniaturization requirement is a problem to be solved at present.
Disclosure of Invention
The present application provides an optical imaging lens device, e.g. an optical imaging lens comprising a prism, which at least solves or partly solves at least one of the above-mentioned drawbacks of the prior art. The present application deflects the light transmission path within the lens group by adding a reflecting prism such that the light rays no longer travel completely longitudinally (e.g., in the direction of the X-axis as shown in fig. 1). Such an arrangement can turn the module volume originally stacked in the longitudinal direction into the transverse direction (for example, the Y-axis direction as shown in fig. 1), so that a focal length of 20mm or more can be achieved while satisfying the light and thin characteristics of the mobile phone.
In one aspect, the present application provides an optical imaging lens comprising: and a prism configured such that light incident to the prism in a direction of an X-axis, which is perpendicular to the Y-axis, is reflected and then emitted from the prism in a direction of the Y-axis. The optical imaging lens further sequentially comprises, from the prism to the image side along the Y optical axis: a first lens with positive focal power, the object side surface of which is a convex surface; a second lens with negative focal power, the object side of which is a concave surface; a third lens with optical power, the object side surface of which is a convex surface; a fourth lens element with optical power having a concave object-side surface and a convex image-side surface; a fifth lens having optical power.
According to the embodiment of the application, the central thickness CT1 of the prism on the optical axis and the central thickness CT2 of the first lens on the optical axis can satisfy 1.0 < CT2/CT1 < 2.0.
According to an embodiment of the present application, the optical imaging lens may further include a diaphragm, and the distance SL between the diaphragm and the imaging surface of the optical imaging lens at the optical axis and the effective focal length f of the optical imaging lens may satisfy 0.5 < SL/f < 1.0.
According to the embodiment of the application, the effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens can meet the f/EPD < 3.5.
According to an embodiment of the present application, the distance T12 between the prism and the first lens on the optical axis may satisfy 0.5mm < T12 < 1.5mm.
According to an embodiment of the present application, the effective focal length f2 of the first lens and the effective focal length f3 of the second lens may satisfy-1.5 < f3/f2 < -0.5.
According to an embodiment of the present application, the radius of curvature R3 of the object-side surface of the first lens and the radius of curvature R10 of the image-side surface of the fourth lens may satisfy-1.5 < R3/R10 < -0.5.
According to the embodiment of the application, the center thickness CT4 of the third lens on the optical axis and the center thickness CT6 of the fifth lens on the optical axis can meet 0.5 < CT4/CT6 < 3.5.
According to the embodiment of the application, the effective focal length f2 of the first lens and the curvature radius R3 of the object side surface of the first lens can satisfy 1.0 < f2/R3 < 2.0.
According to the embodiment of the application, the effective focal length f of the optical imaging lens and the effective focal length f3 of the second lens can satisfy 1.5 < f/|f3| < 2.5.
According to an embodiment of the present application, a distance T12 of the prism and the first lens on the optical axis, a distance T23 of the first lens and the second lens on the optical axis, a distance T34 of the second lens and the third lens on the optical axis, and a distance T45 of the third lens and the fourth lens on the optical axis may satisfy 1.0 < T45/(t12+t23+t34) < 3.5.
The application provides an optical imaging lens comprising a prism and a plurality of (e.g. five) lenses, wherein the prism is arranged to enable an included angle of 90 degrees between the incident direction of light rays and the arrangement direction of the plurality of lenses, so that the size of the optical imaging lens in the incident direction of the light rays is reduced. Meanwhile, the optical imaging lens group has the beneficial effects of miniaturization, high imaging quality and long focal length by reasonably distributing the focal power, the surface type, the center thickness of each lens, the axial spacing between each lens and the like.
Drawings
The above and other advantages of embodiments of the present application will become apparent by reference to the following detailed description of the embodiments of the application with the accompanying drawings, which are intended to illustrate exemplary embodiments of the application and not to limit it. In the drawings:
fig. 1 is a schematic structural view showing an optical imaging lens according to a first embodiment of the present application;
Fig. 2A to 2D sequentially show an on-axis chromatic aberration curve, a chromatic aberration curve of magnification, an astigmatic curve, and a distortion curve according to the first embodiment of the present application;
fig. 3 is a schematic structural diagram showing an optical imaging lens according to a second embodiment of the present application;
Fig. 4A to 4D sequentially show an on-axis chromatic aberration curve, a chromatic aberration curve of magnification, an astigmatic curve, and a distortion curve according to a second embodiment of the present application;
fig. 5 shows a schematic structural diagram of an optical imaging lens according to a third embodiment of the present application;
Fig. 6A to 6D sequentially show an on-axis chromatic aberration curve, a chromatic aberration curve of magnification, an astigmatic curve, and a distortion curve according to a third embodiment of the present application;
fig. 7 is a schematic structural view showing an optical imaging lens according to a fourth embodiment of the present application;
fig. 8A to 8D sequentially show an on-axis chromatic aberration curve, a chromatic aberration curve of magnification, an astigmatic curve, and a distortion curve according to a fourth embodiment of the present application;
fig. 9 is a schematic structural view showing an optical imaging lens according to a fifth embodiment of the present application;
Fig. 10A to 10D sequentially show an on-axis chromatic aberration curve, a chromatic aberration curve of magnification, an astigmatic curve, and a distortion curve according to a fifth embodiment of the present application;
fig. 11 is a schematic structural view showing an optical imaging lens according to a sixth embodiment of the present application;
fig. 12A to 12D sequentially show an on-axis chromatic aberration curve, a chromatic aberration curve of magnification, an astigmatism curve, and a distortion curve according to the sixth embodiment of the present application.
Detailed Description
For a better understanding of the application, various aspects of the application will be described in more detail with reference to the accompanying drawings. It should be understood that the detailed description is merely illustrative of exemplary embodiments of the application and is not intended to limit the scope of the application in any way. Like reference numerals refer to like elements throughout the specification. The expression "and/or" includes any and all combinations of one or more of the associated listed items.
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 of an optical imaging 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. In particular, 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. In each lens, the surface closest to the subject is referred to as the subject side of the lens; in each lens, the surface closest to the imaging plane is referred to as the image side of the lens.
It will be further understood that the terms "comprises," "comprising," "includes," "including," "having," "containing," and/or "including," when used in this specification, specify the presence of stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof. Furthermore, when a statement such as "at least one of the following" appears after a list of features that are listed, the entire listed feature is modified instead of modifying a separate element in the list. Furthermore, when describing embodiments of the application, use of "may" means "one or more embodiments of the application. Also, the term "exemplary" is intended to refer to an example or illustration.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
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.
The features, principles, and other aspects of the present application are described in detail below.
The optical imaging lens according to an exemplary embodiment of the present application may include: the optical system comprises a prism, a first lens, a second lens, a third lens, a fourth lens and a fifth lens, wherein the prism is used for changing the direction of an optical path, and the prism is configured to enable light entering the prism along the direction of an X optical axis to be emitted from the prism along the direction of a Y optical axis after being reflected, and the X optical axis is perpendicular to the Y optical axis. The five lenses are arranged in sequence from the prism to the image side along the optical axis, and air spaces can be arranged between each two adjacent lenses and between the prism and the first lens.
By using the reflecting prism, the incident light can be turned by 90 degrees, so that the direction of the incident light is approximately perpendicular to the arrangement direction of the plurality of lenses, the length space of the mobile phone is used as the space for zooming the lens, and the limitation of the thickness of the body to the focal length of the lens is avoided.
In an exemplary embodiment, the first lens may have positive optical power, and its object-side surface may be convex; the second lens may have negative optical power, and the object side surface thereof may be a concave surface; the third lens has positive focal power or negative focal power, and the object side surface of the third lens can be a convex surface; the fourth lens has positive focal power or negative focal power, the object side surface is a concave surface, and the image side surface is a convex surface; the fifth lens has positive optical power or negative optical power. The optical power of the lens is reasonably configured, the lens surface type is reasonably arranged, the off-axis aberration of the optical imaging lens is corrected, and the imaging quality is improved.
In an exemplary embodiment, the optical imaging lens provided by the application can satisfy the condition that 1.0 < CT2/CT1 < 2.0, wherein CT1 is the center thickness of the prism on the optical axis, and CT2 is the center thickness of the first lens on the optical axis. For example, the optical imaging lens provided by the application can meet the condition that the CT2/CT1 is smaller than 1.8, for example, the CT2/CT1 is smaller than 1.3 and smaller than 1.65. By controlling the ratio of the center thickness of the prism to the center thickness of the first lens, the optical imaging lens has the characteristic of long focus and is small in size. Meanwhile, the structure of the system is adjusted, and the difficulty in lens processing and assembly is reduced.
In an exemplary embodiment, the optical imaging lens according to the present application may further include a diaphragm, and the distance SL of the diaphragm to the imaging surface of the optical imaging lens on the optical axis and the effective focal length f of the optical imaging lens may satisfy the conditional expression 0.5 < SL/f < 1.0. Illustratively, a stop is disposed between the prism and the first lens. For example, the optical imaging lens may satisfy the conditional expression 0.8 < SL/f < 0.95, for example, 0.85. Ltoreq.SL/f. Ltoreq.0.93. A diaphragm is arranged between the prism and the first lens, so that the angle of view of the optical imaging system can be controlled, and the imaging range can be controlled; the ratio of the distance from the diaphragm to the imaging surface on the axis to the effective focal length of the optical lens group is controlled to be smaller than 1, so that the optical imaging lens has long-focus optical characteristics, and the aberration of the optical imaging system caused by production and other reasons can be reduced by the centrally-arranged diaphragm, so that the production yield is improved.
In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the condition that f/EPD < 3.5, where f is an effective focal length of the optical imaging lens and EPD is an entrance pupil diameter of the optical imaging lens. For example, the optical imaging lens may satisfy the condition 3 < f/EPD < 3.5, e.g., 3.2 < f/EPD < 3.4. The ratio of the effective focal length to the entrance pupil diameter of the optical imaging lens is controlled, so that the optical imaging lens has long focal length characteristics, and incident light rays are controlled, so that the optical imaging lens has good imaging effect in a weak light ray environment. In addition, it is advantageous to reduce aberrations of the fringe field of view.
In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the conditional expression 0.5mm < T12 < 1.5mm, where T12 is a distance between the prism and the first lens on the optical axis. By way of example, the optical imaging lens may satisfy the conditional expression 0.6mm < T12 < 1.3mm, for example 0.65mm < T12 < 1.25mm. The distance between the prism and the first lens along the optical axis direction is controlled, so that the optical imaging lens has good assembly and optical anti-shake performance, and the size after installation is smaller.
In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the condition-1.5 < f3/f2 < -0.5, where f2 is an effective focal length of the first lens and f3 is an effective focal length of the second lens. Illustratively, both satisfy the conditional expression-1.5 < f3/f2 < -0.9, e.g., -1.42. Ltoreq.f3/f 2. Ltoreq.0.96. When the focal power of the first lens is positive, the focal power of the second lens is controlled to be negative, the volume of the optical imaging lens can be controlled, and meanwhile, the imaging performance of the optical imaging lens can be improved by controlling the ratio of the effective focal lengths of the first lens and the second lens, so that the optical imaging lens has the capability of balancing aberration.
In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the condition-1.5 < R3/R10 < -0.5, wherein R3 is a radius of curvature of an object side surface of the first lens element, and R10 is a radius of curvature of an image side surface of the fourth lens element. For example, the optical imaging lens may satisfy the conditional expression-1.4 < R3/R10 < -0.7, for example, -1.20.ltoreq.R3/R10.ltoreq.0.72. The ratio of the curvature radius of the object side surface of the first lens to the curvature radius of the image side surface of the fourth lens is controlled, so that the focal power of the lens can be controlled, and the optical imaging lens has the capabilities of balancing chromatic aberration and balancing distortion.
In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the conditional expression 0.5 < CT4/CT6 < 3.5, where CT4 is a center thickness of the third lens on the optical axis and CT6 is a center thickness of the fifth lens on the optical axis. Illustratively, the optical imaging lens may satisfy the condition that 0.8 < CT4/CT6 < 3.3, for example, 0.98 < CT4/CT6 < 3.20. The ratio of the center thickness of the third lens to the center thickness of the fifth lens is controlled, so that the rear end size of the optical imaging lens, such as the sizes of the third lens, the fifth lens and the fourth lens, can be reduced, the optical imaging lens has smaller volume, the assembling difficulty is further reduced, and the space utilization rate after assembly is improved.
In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the conditional expression 1.0 < f2/R3 < 2.0, where f2 is an effective focal length of the first lens and R3 is a radius of curvature of an object side surface of the first lens. For example, the optical imaging lens may satisfy the conditional expression 1.4 < f2/R3 < 1.9, for example, 1.46.ltoreq.f2/R3.ltoreq.1.87. By controlling the ratio of the effective focal length of the first lens to the curvature radius of the object side, the astigmatism of the image formed by the optical imaging lens can be balanced, and the size of the optical imaging lens is small.
In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the conditional expression 1.5 < f/|f3| < 2.5, where f is an effective focal length of the optical imaging lens and |f3| is an absolute value of an effective focal length of the second lens. For example, the optical imaging lens may satisfy the conditional expression 1.7 < f/|f3| < 2.3, for example 1.73+.f/|f3|+.2.25. The effective focal length of the third lens is controlled to enable the optical lens to have long focal length characteristics and have the function of adjusting the light ray position, and the length of the optical imaging lens along the second section of the optical axis is shortened.
In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the conditional expression 1.0 < T45/(t12+t23+t34) < 3.5, where T12 is the distance on the optical axis between the prism and the first lens, T23 is the distance on the optical axis between the first lens and the second lens, T34 is the distance on the optical axis between the second lens and the third lens, and T45 is the distance on the optical axis between the third lens and the fourth lens. For example, the optical imaging lens may satisfy the conditional expression 1.3 < T45/(T12+T23+T34) < 3.1, for example, 1.37.ltoreq.T45/(T12+T23+T34). Ltoreq.3.09. The air interval between the third lens and the fourth lens on the optical axis is controlled, so that the distance between the third lens and the fourth lens is enough to adjust the surface morphology of each lens, and the optical imaging lens has the capability of correcting astigmatism and field curvature due to high degree of freedom of lens surface variation.
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 at the imaging surface.
The imaging lens group according to the above embodiment of the present application may employ a plurality of lenses, for example, five lenses as described above. By reasonably distributing the focal power, the surface shape, the center thickness of each lens, the axial spacing between each lens and the like, the volume of the lens can be effectively reduced, the sensitivity of the lens can be reduced, and the processability of the lens can be improved, so that the camera lens group is more beneficial to production and processing and is applicable to portable electronic products.
In the embodiment of the present application, aspherical mirror surfaces are often used as the mirror surfaces of the respective lenses. At least one of the object-side surface of the first lens to the image-side surface of the fifth 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.
Optionally, at least one of an object side surface and an image side surface of each of the first lens, the second lens, the third lens, the fourth lens, and the fifth lens may be aspherical. For example, the object-side surface and the image-side surface of the first lens element are aspheric, and the object-side surface of the second lens element is aspheric; for example, the image side surface of the first lens element is aspheric, the object side surface of the second lens element is aspheric, and the image side surface of the third lens element and the object side surface of the fourth lens element are aspheric; for example, the image side surface of the first lens element and the image side surface of the third lens element are aspheric, and the object side surface of the fifth lens element and the image side surface thereof are aspheric. Alternatively, the object side surface and the image side surface of each of the first lens, the second lens, the third lens, the fourth lens, and the fifth lens may be aspherical surfaces.
Specific examples of the optical imaging lens applicable to the above-described embodiments are further described below with reference to the accompanying drawings.
Example 1
Referring to fig. 1 to 2D, the optical imaging lens of the present embodiment sequentially includes, along an optical axis from an object side to an image side: the prism E1, the first lens E2, the second lens E3, the third lens E4, the fourth lens E5, the fifth lens E6, and the filter E7 may be provided with a stop STO between the prism E1 and the first lens E2. Any two adjacent lenses may have an air space between them.
The prism E1 is configured such that light incident on the prism E1 in the direction of the X-axis, which is perpendicular to the Y-axis, is reflected and then exits the prism E1 in the direction of the Y-axis. The first lens element E2 has positive refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is convex. The second lens element E3 has negative refractive power, wherein an object-side surface S5 thereof is concave, and an image-side surface S6 thereof is concave. The third lens element E4 has positive refractive power, wherein an object-side surface S7 thereof is convex, and an image-side surface S8 thereof is concave. The fourth lens element E5 has positive refractive power, wherein an object-side surface S9 thereof is concave and an image-side surface S10 thereof is convex. The fifth lens element E6 has negative refractive power, wherein an object-side surface S11 thereof is concave, and an image-side surface S12 thereof is concave. The filter E7 has an object side surface S13 and an image side surface S14. The optical imaging lens of the present embodiment has an imaging surface S15. Light from the object sequentially passes through the respective surfaces (S1 to S14) and is imaged on the imaging surface S15.
Table 1 shows a basic parameter table of the optical imaging lens of the present embodiment, in which the units of radius of curvature, thickness, and focal length are all millimeters (mm), specifically as follows:
TABLE 1
Wherein TTL is the distance between the object side surface S1 of the prism E1 and the imaging surface of the optical imaging lens on the optical axis, imgH is half the length of the diagonal line of the effective pixel area on the imaging surface, semi-FOV is the maximum half field angle of the optical imaging lens, and f is the effective focal length of the optical imaging lens.
The object side surface and the image side surface of any one of the first lens element E2 to the fifth lens element E6 of the optical imaging lens are aspheric, and the surface shape x of each aspheric lens 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 aspheric surface, c=1/R (i.e., paraxial curvature c is the inverse of 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 following table 2 gives the higher order coefficients a 4、A6、A8、A10、A12、A14、A16、A18 and a 20 that can be used for the respective aspherical surfaces S3 to S12 in accordance with embodiment one.
TABLE 2
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S3 -2.1944E-04 -2.7362E-05 7.7521E-06 -2.1637E-06 3.5958E-07 -3.7484E-08 2.3695E-09 -8.2808E-11 1.2260E-12
S4 -3.4220E-03 5.8359E-03 -3.8344E-03 1.4900E-03 -3.6233E-04 5.5667E-05 -5.2340E-06 2.7417E-07 -6.1134E-09
S5 1.3207E-03 8.2059E-03 -6.2032E-03 2.5945E-03 -6.7243E-04 1.0969E-04 -1.0909E-05 6.0211E-07 -1.4098E-08
S6 4.6591E-03 6.0408E-03 -4.7518E-03 2.0065E-03 -4.6817E-04 5.2148E-05 -1.8729E-07 -4.7913E-07 2.9634E-08
S7 -5.3256E-03 5.5253E-03 -4.2216E-03 2.0284E-03 -5.9878E-04 1.0766E-04 -1.1292E-05 6.3015E-07 -1.4451E-08
S8 -6.1482E-03 3.1273E-03 -2.8173E-03 1.5435E-03 -5.3166E-04 1.1487E-04 -1.5154E-05 1.1256E-06 -3.6317E-08
S9 4.0273E-03 -4.4972E-03 2.5328E-03 -1.5250E-03 6.3201E-04 -1.7030E-04 2.8438E-05 -2.6677E-06 1.0805E-07
S10 -4.4169E-03 6.6264E-03 -5.1799E-03 2.0557E-03 -4.9689E-04 6.7083E-05 -3.2667E-06 -2.4219E-07 2.6680E-08
S11 -4.2878E-02 1.9559E-02 -1.0647E-02 4.4996E-03 -1.3329E-03 2.6135E-04 -3.1773E-05 2.1252E-06 -5.8375E-08
S12 -3.1600E-02 8.5104E-03 -2.7499E-03 8.6224E-04 -2.2233E-04 4.1309E-05 -5.0137E-06 3.5056E-07 -1.0640E-08
Fig. 2A shows an on-axis chromatic aberration curve of the optical imaging lens of the first embodiment, which represents deviation of converging focal points of light rays of different wavelengths after passing through the optical system. Fig. 2B shows a chromatic aberration of magnification curve of the optical imaging lens according to the first embodiment, which represents deviations of different image heights of light rays on an imaging plane after the light rays pass through the optical system. Fig. 2C shows an astigmatism curve of the optical imaging lens of the first embodiment, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 2D shows a distortion curve of the optical imaging lens according to the first embodiment, which represents distortion magnitude values corresponding to different image heights. As can be seen from fig. 2A to 2D, the optical imaging lens according to the first embodiment can achieve good imaging quality.
Example two
An optical imaging lens according to a second embodiment of the present application will be described below with reference to fig. 3 to 4D, and in the present exemplary embodiment and the following embodiments, descriptions of portions similar to those of the first embodiment will be omitted for brevity.
Referring to fig. 3, the optical imaging lens of the present embodiment sequentially includes, along an optical axis from an object side to an image side: the prism E1, the first lens E2, the second lens E3, the third lens E4, the fourth lens E5, the fifth lens E6, and the filter E7 may be provided with a stop STO between the prism E1 and the first lens E2. Any two adjacent lenses may have an air space between them.
The prism E1 is configured such that light incident on the prism E1 in the direction of the X-axis, which is perpendicular to the Y-axis, is reflected and then exits the prism E1 in the direction of the Y-axis. The first lens element E2 has positive refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is convex. The second lens element E3 has negative refractive power, wherein an object-side surface S5 thereof is concave and an image-side surface S6 thereof is convex. The third lens element E4 has negative refractive power, wherein an object-side surface S7 thereof is convex, and an image-side surface S8 thereof is concave. The fourth lens element E5 has positive refractive power, wherein an object-side surface S9 thereof is concave and an image-side surface S10 thereof is convex. The fifth lens element E6 has negative refractive power, wherein an object-side surface S11 thereof is convex and an image-side surface S12 thereof is concave. The filter E7 has an object side surface S13 and an image side surface S14. The optical imaging lens of the present embodiment has an imaging surface S15. Light from the object sequentially passes through the respective surfaces (S1 to S14) and is imaged on the imaging surface S15.
Table 3 shows a basic parameter table of the optical imaging lens of the present embodiment, in which the units of the radius of curvature, the thickness, and the focal length are all millimeters (mm), and table 4 shows the higher order coefficients of the respective aspherical surfaces usable for the optical imaging lens of the present embodiment, in which the respective aspherical surface forms can be defined by the foregoing formula (1), specifically as follows:
TABLE 3 Table 3
TABLE 4 Table 4
Fig. 4A shows an on-axis chromatic aberration curve of the optical imaging lens of the present embodiment, which represents deviation of converging focal points of light rays of different wavelengths after passing through the optical system. Fig. 4B shows a magnification chromatic aberration curve of the optical imaging lens of the present embodiment, which represents deviations of different image heights on an imaging plane after light passes through an optical system. Fig. 4C shows an astigmatism curve of the optical imaging lens of the present embodiment, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 4D shows a distortion curve of the optical imaging lens of the present embodiment, which represents distortion magnitude values corresponding to different image heights. As can be seen from fig. 4A to 4D, the optical imaging lens provided in the present embodiment can achieve good imaging quality.
Example III
An optical imaging lens according to a third embodiment of the present application is described below with reference to fig. 5 to 6D.
Referring to fig. 5, the optical imaging lens of the present embodiment sequentially includes, along an optical axis from an object side to an image side: the prism E1, the first lens E2, the second lens E3, the third lens E4, the fourth lens E5, the fifth lens E6, and the filter E7 may be provided with a stop STO between the prism E1 and the first lens E2. Any two adjacent lenses may have an air space between them.
The prism E1 is configured such that light incident on the prism E1 in the direction of the X-axis, which is perpendicular to the Y-axis, is reflected and then exits the prism E1 in the direction of the Y-axis. The first lens element E2 has positive refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The second lens element E3 has negative refractive power, wherein an object-side surface S5 thereof is concave, and an image-side surface S6 thereof is concave. The third lens element E4 has positive refractive power, wherein an object-side surface S7 thereof is convex, and an image-side surface S8 thereof is concave. The fourth lens element E5 has positive refractive power, wherein an object-side surface S9 thereof is concave and an image-side surface S10 thereof is convex. The fifth lens element E6 has negative refractive power, wherein an object-side surface S11 thereof is convex and an image-side surface S12 thereof is concave. The filter E7 has an object side surface S13 and an image side surface S14. The optical imaging lens of the present embodiment has an imaging surface S15. Light from the object sequentially passes through the respective surfaces (S1 to S14) and is imaged on the imaging surface S15.
Table 5 shows a basic parameter table of the optical imaging lens of the present embodiment, in which the units of the radius of curvature, the thickness, and the focal length are all millimeters (mm), and table 6 shows the higher order coefficients of the respective aspherical surfaces usable for the optical imaging lens of the present embodiment, in which the respective aspherical surface forms can be defined by the foregoing formula (1), specifically as follows:
TABLE 5
TABLE 6
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S3 -1.8845E-04 -2.2765E-05 6.4214E-06 -1.4526E-06 2.0616E-07 -1.7918E-08 9.0592E-10 -2.3279E-11 2.1012E-13
S4 -4.2440E-03 6.2514E-03 -4.2611E-03 1.7286E-03 -4.2907E-04 6.5828E-05 -6.0798E-06 3.0986E-07 -6.7009E-09
S5 3.0535E-03 6.5028E-03 -5.1072E-03 2.1162E-03 -5.2789E-04 8.0751E-05 -7.3758E-06 3.6809E-07 -7.7031E-09
S6 4.8962E-03 7.7444E-03 -6.4311E-03 2.9792E-03 -8.4080E-04 1.4727E-04 -1.5849E-05 9.9282E-07 -2.8936E-08
S7 -6.9246E-03 7.8190E-03 -5.9256E-03 2.8673E-03 -8.7604E-04 1.7107E-04 -2.0974E-05 1.4925E-06 -4.7334E-08
S8 -5.2382E-03 1.3743E-03 -1.1974E-03 6.9583E-04 -2.5890E-04 6.1213E-05 -8.9282E-06 7.3301E-07 -2.5786E-08
S9 5.5288E-04 -1.7501E-03 9.0938E-04 -6.6922E-04 3.3349E-04 -1.0429E-04 1.9549E-05 -2.0101E-06 8.7168E-08
S10 -3.5476E-03 3.6962E-03 -2.7743E-03 1.0416E-03 -2.2770E-04 2.3804E-05 2.8198E-07 -3.0176E-07 1.9861E-08
S11 -3.2908E-02 1.0494E-02 -4.8767E-03 1.8444E-03 -4.9231E-04 8.6570E-05 -9.2872E-06 5.2462E-07 -1.0766E-08
S12 -2.5574E-02 5.2365E-03 -1.2840E-03 2.8615E-04 -5.0247E-05 6.2524E-06 -4.9863E-07 2.1073E-08 -2.7517E-10
Fig. 6A shows an on-axis chromatic aberration curve of the optical imaging lens of the present embodiment, which represents deviation of converging focal points of light rays of different wavelengths after passing through the optical system. Fig. 6B shows a magnification chromatic aberration curve of the optical imaging lens of the present embodiment, which represents deviations of different image heights on an imaging plane after light passes through an optical system. Fig. 6C shows an astigmatism curve of the optical imaging lens of the present embodiment, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 6D shows a distortion curve of the optical imaging lens of the present embodiment, which represents distortion magnitude values corresponding to different image heights. As can be seen from fig. 6A to 6D, the optical imaging lens provided in the present embodiment can achieve good imaging quality.
Example IV
An optical imaging lens according to a fourth embodiment of the present application is described below with reference to fig. 7 to 8D.
Referring to fig. 7, the optical imaging lens of the present embodiment sequentially includes, along an optical axis from an object side to an image side: the prism E1, the first lens E2, the second lens E3, the third lens E4, the fourth lens E5, the fifth lens E6, and the filter E7 may be provided with a stop STO between the prism E1 and the first lens E2. Any two adjacent lenses may have an air space between them.
The prism E1 is configured such that light incident on the prism E1 in the direction of the X-axis, which is perpendicular to the Y-axis, is reflected and then exits the prism E1 in the direction of the Y-axis. The first lens element E2 has positive refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is convex. The second lens element E3 has negative refractive power, wherein an object-side surface S5 thereof is concave, and an image-side surface S6 thereof is concave. The third lens element E4 has positive refractive power, wherein an object-side surface S7 thereof is convex, and an image-side surface S8 thereof is convex. The fourth lens element E5 has positive refractive power, wherein an object-side surface S9 thereof is concave and an image-side surface S10 thereof is convex. The fifth lens element E6 has negative refractive power, wherein an object-side surface S11 thereof is convex and an image-side surface S12 thereof is concave. The filter E7 has an object side surface S13 and an image side surface S14. The optical imaging lens of the present embodiment has an imaging surface S15. Light from the object sequentially passes through the respective surfaces (S1 to S14) and is imaged on the imaging surface S15.
Table 7 shows a basic parameter table of the optical imaging lens of the present embodiment, in which the units of the radius of curvature, the thickness, and the focal length are all millimeters (mm), and table 8 shows the higher order coefficients of the respective aspherical surfaces usable for the optical imaging lens of the present embodiment, in which the respective aspherical surface forms can be defined by the foregoing formula (1), specifically as follows:
TABLE 7
TABLE 8
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S3 -1.6401E-04 -1.0645E-05 2.7831E-06 -7.1504E-07 1.1185E-07 -1.0612E-08 5.8464E-10 -1.6552E-11 1.7464E-13
S4 9.9534E-04 3.7006E-05 2.2114E-06 -2.6828E-05 1.1608E-05 -2.2649E-06 2.4408E-07 -1.3873E-08 3.1740E-10
S5 8.5169E-03 -1.3780E-03 5.1220E-04 -2.4623E-04 7.5915E-05 -1.4181E-05 1.6088E-06 -1.0200E-07 2.7499E-09
S6 1.0665E-02 -1.3862E-03 6.6089E-04 -2.6927E-04 5.7950E-05 -3.6460E-06 -8.3145E-07 1.8205E-07 -1.0827E-08
S7 -3.7010E-06 1.2002E-04 -2.1715E-04 2.5441E-04 -1.4578E-04 4.6550E-05 -8.4574E-06 8.2531E-07 -3.3482E-08
S8 -4.7012E-03 -5.0621E-05 -6.0604E-06 3.8723E-06 -1.1537E-06 2.3574E-07 -2.9752E-08 1.4751E-09 -3.6651E-12
S9 2.6001E-03 -3.2580E-03 1.4050E-03 -6.1466E-04 1.9698E-04 -4.1840E-05 5.6157E-06 -4.3303E-07 1.4607E-08
S10 3.5707E-03 -5.0487E-03 3.0623E-03 -1.4240E-03 4.3770E-04 -8.6216E-05 1.0491E-05 -7.1845E-07 2.1178E-08
S11 -2.0373E-02 -1.5271E-03 2.7616E-03 -1.4423E-03 4.4727E-04 -8.6616E-05 1.0151E-05 -6.5214E-07 1.7344E-08
S12 -2.2026E-02 3.1396E-03 -3.8591E-04 -5.6235E-06 1.6851E-05 -4.1667E-06 5.2021E-07 -3.3886E-08 9.0815E-10
Fig. 8A shows an on-axis chromatic aberration curve of the optical imaging lens of the present embodiment, which represents the deviation of the converging focus after light rays of different wavelengths pass through the optical system. Fig. 8B shows a magnification chromatic aberration curve of the optical imaging lens of the present embodiment, which represents the deviation of different image heights on the imaging plane after light passes through the optical system. Fig. 8C shows an astigmatism curve of the optical imaging lens of the present embodiment, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 8D shows a distortion curve of the optical imaging lens of the present embodiment, which represents distortion magnitude values corresponding to different image heights. As can be seen from fig. 8A to 8D, the optical imaging lens provided in the present embodiment can achieve good imaging quality.
Example five
An optical imaging lens according to a fifth embodiment of the present application is described below with reference to fig. 9 to 10D. Referring to fig. 9, the optical imaging lens of the present embodiment sequentially includes, along an optical axis from an object side to an image side: the prism E1, the first lens E2, the second lens E3, the third lens E4, the fourth lens E5, the fifth lens E6, and the filter E7 may be provided with a stop STO between the prism E1 and the first lens E2. Any two adjacent lenses may have an air space between them.
The prism E1 is configured such that light incident on the prism E1 in the direction of the X-axis, which is perpendicular to the Y-axis, is reflected and then exits the prism E1 in the direction of the Y-axis. The first lens element E2 has positive refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is convex. The second lens element E3 has negative refractive power, wherein an object-side surface S5 thereof is concave, and an image-side surface S6 thereof is concave. The third lens element E4 has negative refractive power, wherein an object-side surface S7 thereof is convex, and an image-side surface S8 thereof is concave. The fourth lens element E5 has positive refractive power, wherein an object-side surface S9 thereof is concave and an image-side surface S10 thereof is convex. The fifth lens element E6 has negative refractive power, wherein an object-side surface S11 thereof is convex and an image-side surface S12 thereof is concave. The filter E7 has an object side surface S13 and an image side surface S14. The optical imaging lens of the present embodiment has an imaging surface S15. Light from the object sequentially passes through the respective surfaces (S1 to S14) and is imaged on the imaging surface S15.
Table 9 shows a basic parameter table of the optical imaging lens of the present embodiment, in which the units of the radius of curvature, the thickness, and the focal length are all millimeters (mm), and table 10 shows the higher order coefficients of the respective aspherical surfaces usable for the optical imaging lens of the present embodiment, in which the respective aspherical surface forms can be defined by the foregoing formula (1), specifically as follows:
TABLE 9
Table 10
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S3 -2.2739E-04 -2.3214E-05 5.5478E-06 -1.4480E-06 2.2873E-07 -2.2799E-08 1.3846E-09 -4.6502E-11 6.6082E-13
S4 -1.2196E-03 2.0701E-03 -1.1766E-03 4.3977E-04 -1.0650E-04 1.6402E-05 -1.5367E-06 7.9517E-08 -1.7386E-09
S5 4.5969E-03 2.6961E-03 -2.1817E-03 9.3688E-04 -2.4956E-04 4.1353E-05 -4.1046E-06 2.2221E-07 -5.0301E-09
S6 6.2840E-03 3.4090E-03 -3.0126E-03 1.5133E-03 -4.4529E-04 7.5969E-05 -7.0569E-06 3.0908E-07 -4.3050E-09
S7 -5.1632E-03 4.3474E-03 -3.4903E-03 1.9630E-03 -6.8211E-04 1.4678E-04 -1.9218E-05 1.4186E-06 -4.5569E-08
S8 -6.4939E-03 2.4919E-03 -2.3889E-03 1.5166E-03 -5.9825E-04 1.4647E-04 -2.1786E-05 1.8093E-06 -6.4317E-08
S9 3.6240E-03 -4.4410E-03 2.6292E-03 -1.6352E-03 7.0717E-04 -1.9644E-04 3.3230E-05 -3.1107E-06 1.2397E-07
S10 -2.4548E-03 3.2952E-03 -2.3524E-03 4.8712E-04 7.9814E-05 -6.6142E-05 1.4975E-05 -1.5741E-06 6.5702E-08
S11 -3.8289E-02 1.3687E-02 -5.9320E-03 1.8828E-03 -3.7648E-04 4.0882E-05 -1.2129E-06 -1.8416E-07 1.4346E-08
S12 -2.9983E-02 6.9298E-03 -1.7066E-03 3.5064E-04 -5.4514E-05 6.2227E-06 -5.3288E-07 3.2131E-08 -9.8302E-10
Fig. 10A shows an on-axis chromatic aberration curve of the optical imaging lens of the present embodiment, which represents the deviation of the converging focus after light rays of different wavelengths pass through the optical system. Fig. 10B shows a magnification chromatic aberration curve of the optical imaging lens of the present embodiment, which represents the deviation of different image heights on the imaging plane after light passes through the optical system. Fig. 10C shows an astigmatism curve of the optical imaging lens of the present embodiment, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 10D shows a distortion curve of the optical imaging lens of the present embodiment, which represents distortion magnitude values corresponding to different image heights. As can be seen from fig. 10A to 10D, the optical imaging lens provided in the present embodiment can achieve good imaging quality.
Example six
An optical imaging lens according to a third embodiment of the present application is described below with reference to fig. 11 to 12D. Referring to fig. 11, the optical imaging lens of the present embodiment sequentially includes, along an optical axis from an object side to an image side: the prism E1, the first lens E2, the second lens E3, the third lens E4, the fourth lens E5, the fifth lens E6, and the filter E7 may be provided with a stop STO between the prism E1 and the first lens E2. Any two adjacent lenses may have an air space between them.
The prism E1 is configured such that light incident on the prism E1 in the direction of the X-axis, which is perpendicular to the Y-axis, is reflected and then exits the prism E1 in the direction of the Y-axis. The first lens element E2 has positive refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is convex. The second lens element E3 has negative refractive power, wherein an object-side surface S5 thereof is concave, and an image-side surface S6 thereof is concave. The third lens element E4 has positive refractive power, wherein an object-side surface S7 thereof is convex, and an image-side surface S8 thereof is concave. The fourth lens element E5 has positive refractive power, wherein an object-side surface S9 thereof is concave and an image-side surface S10 thereof is convex. The fifth lens element E6 has negative refractive power, wherein an object-side surface S11 thereof is concave and an image-side surface S12 thereof is convex. The filter E7 has an object side surface S13 and an image side surface S14. The optical imaging lens of the present embodiment has an imaging surface S15. Light from the object sequentially passes through the respective surfaces (S1 to S14) and is imaged on the imaging surface S15.
Table 11 shows a basic parameter table of the optical imaging lens of the present embodiment, in which the units of the radius of curvature, the thickness, and the focal length are all millimeters (mm), and table 12 shows the higher order coefficients of the respective aspherical surfaces usable for the optical imaging lens of the present embodiment, in which the respective aspherical surface forms can be defined by the foregoing formula (1), specifically as follows:
TABLE 11
Table 12
Fig. 12A shows an on-axis chromatic aberration curve of the optical imaging lens of the present embodiment, which represents the deviation of the converging focus after light rays of different wavelengths pass through the optical system. Fig. 12B shows a magnification chromatic aberration curve of the optical imaging lens of the present embodiment, which represents the deviation of different image heights on the imaging plane after light passes through the optical system. Fig. 12C shows an astigmatism curve of the optical imaging lens of the present embodiment, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 12D shows a distortion curve of the optical imaging lens of the present embodiment, which represents distortion magnitude values corresponding to different image heights. As can be seen from fig. 12A to 12D, the optical imaging lens provided in the present embodiment can achieve good imaging quality.
In summary, the first to sixth embodiments correspond to satisfy the relationship shown in table 13 below.
TABLE 13
Conditional\embodiment 1 2 3 4 5 6
SL/f 0.85 0.86 0.87 0.93 0.86 0.86
f3/f2 -1.09 -1.42 -0.96 -1.05 -1.10 -1.04
CT2/CT1 1.57 1.35 1.49 1.64 1.56 1.60
R3/R10 -1.14 -0.72 -1.20 -1.06 -1.18 -1.00
CT4/CT6 0.98 2.97 1.71 3.20 1.22 3.10
f2/R3 1.54 1.46 1.87 1.68 1.54 1.59
f/|f3| 2.25 1.73 2.03 1.99 2.18 2.25
T45/(T12+T23+T34) 1.94 2.22 3.09 1.37 2.16 1.82
f/EPD 3.23 3.23 3.23 3.23 3.23 3.23
T12(mm) 0.90 1.20 0.69 1.05 0.75 0.80
However, it will be appreciated by those skilled in the art that the number of lenses making up the optical imaging lens can be varied to achieve the various results and advantages described in this specification without departing from the technical solution claimed in the present application. For example, although the description has been made by taking five lenses as an example in the embodiment, the optical imaging lens is not limited to include five lenses. The optical imaging lens may also include other numbers of lenses, if desired.
In an exemplary embodiment, the present application also provides an image pickup apparatus provided with an electronic photosensitive element for imaging, which may be a photosensitive coupling element (CCD) or a complementary metal oxide semiconductor element (CMOS). The image pickup apparatus may be a stand-alone image pickup device such as a digital camera, or may be an image pickup module integrated on a mobile electronic device such as a cellular phone. The image pickup apparatus is equipped with the optical imaging lens described above.
Exemplary embodiments of the present application are described above with reference to the accompanying drawings. It will be appreciated by those skilled in the art that the above-described embodiments are examples for illustrative purposes only and are not intended to limit the scope of the present application. Any modifications, equivalents, and so forth that come within the teachings of the application and the scope of the claims are intended to be included within the scope of the application as claimed.

Claims (13)

1. The optical imaging lens, its characterized in that, optical imaging lens includes:
A prism configured such that light incident to the prism in a direction of an X-axis, which is perpendicular to the Y-axis, exits the prism in a direction of the Y-axis after being reflected;
The optical imaging lens further includes, in order from the prism to an image side along the Y optical axis:
a first lens with positive focal power, the object side surface of which is a convex surface;
A second lens with negative focal power, the object side of which is a concave surface;
a third lens with optical power, the object side surface of which is a convex surface;
The object side surface of the fourth lens is a concave surface, and the image side surface of the fourth lens is a convex surface;
a fifth lens having negative optical power; and
Wherein the number of lenses of the optical imaging lens with focal power is five;
The central thickness CT1 of the prism on the optical axis and the central thickness CT2 of the first lens on the optical axis meet 1.0 < CT2/CT1 < 2.0;
the distance T12 between the prism and the first lens on the optical axis is more than 0.5mm and less than T12 and less than 1.5mm;
The effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens meet the conditions that f/EPD is more than 3 and less than 3.5;
The effective focal length f2 of the first lens and the effective focal length f3 of the second lens meet-1.5 < f3/f2 < -0.5; the curvature radius R3 of the object side surface of the first lens and the curvature radius R10 of the image side surface of the fourth lens are less than or equal to-1.20 and less than or equal to R3/R10 and less than or equal to-0.72.
2. The optical imaging lens according to claim 1, wherein a center thickness CT4 of the third lens on the optical axis and a center thickness CT6 of the fifth lens on the optical axis satisfy 0.5 < CT4/CT6 < 3.5.
3. The optical imaging lens as claimed in claim 1, wherein an effective focal length f2 of the first lens and a radius of curvature R3 of an object side surface of the first lens satisfy 1.0 < f2/R3 < 2.0.
4. The optical imaging lens of claim 1, wherein an effective focal length f of the optical imaging lens and an effective focal length f3 of the second lens satisfy 1.5 < f/|f3| < 2.5.
5. The optical imaging lens according to claim 4, wherein a distance T12 of the prism and the first lens on the optical axis, a distance T23 of the first lens and the second lens on the optical axis, a distance T34 of the second lens and the third lens on the optical axis, and a distance T45 of the third lens and the fourth lens on the optical axis satisfy 1.0 < t45/(t12+t23+t34) < 3.5.
6. The optical imaging lens according to any one of claims 1 to 5, further comprising a diaphragm, a distance SL of the diaphragm to an imaging surface of the optical imaging lens at the optical axis and an effective focal length f of the optical imaging lens satisfying 0.5 < SL/f < 1.0.
7. The optical imaging lens, its characterized in that, optical imaging lens includes:
A prism configured such that light incident to the prism in a direction of an X-axis, which is perpendicular to the Y-axis, exits the prism in a direction of the Y-axis after being reflected;
The optical imaging lens further includes, in order from the prism to an image side along the Y optical axis:
a first lens with positive focal power, the object side surface of which is a convex surface;
A second lens with negative focal power, the object side of which is a concave surface;
a third lens with optical power, the object side surface of which is a convex surface;
The object side surface of the fourth lens is a concave surface, and the image side surface of the fourth lens is a convex surface;
a fifth lens having negative optical power;
Wherein the number of lenses of the optical imaging lens with focal power is five;
The effective focal length f2 of the first lens and the effective focal length f3 of the second lens meet-1.5 < f3/f2 < -0.5; the distance T12 between the prism and the first lens on the optical axis is more than 0.5mm and less than T12 and less than 1.5mm;
The effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens meet the conditions that f/EPD is more than 3 and less than 3.5;
The curvature radius R3 of the object side surface of the first lens and the curvature radius R10 of the image side surface of the fourth lens are less than or equal to-1.20 and less than or equal to R3/R10 and less than or equal to-0.72.
8. The optical imaging lens according to claim 7, wherein a center thickness CT4 of the third lens on the optical axis and a center thickness CT6 of the fifth lens on the optical axis satisfy 0.5 < CT4/CT6 < 3.5.
9. The optical imaging lens of claim 7, wherein an effective focal length f2 of the first lens and a radius of curvature R3 of an object side surface of the first lens satisfy 1.0 < f2/R3 < 2.0.
10. The optical imaging lens of claim 7, wherein an effective focal length f of the optical imaging lens and an effective focal length f3 of the second lens satisfy 1.5 < f/|f3| < 2.5.
11. The optical imaging lens according to claim 7, wherein a distance T12 of the prism and the first lens on the optical axis, a distance T23 of the first lens and the second lens on the optical axis, a distance T34 of the second lens and the third lens on the optical axis, and a distance T45 of the third lens and the fourth lens on the optical axis satisfy 1.0 < t45/(t12+t23+t34) < 3.5.
12. The optical imaging lens of claim 11, wherein a center thickness CT1 of the prism on the optical axis and a center thickness CT2 of the first lens on the optical axis satisfy 1.0 < CT2/CT1 < 2.0.
13. The optical imaging lens according to any one of claims 7 to 12, further comprising a diaphragm, a distance SL of the diaphragm to an imaging surface of the optical imaging lens at the optical axis and an effective focal length f of the optical imaging lens satisfying 0.5 < SL/f < 1.0.
CN201910475300.8A 2019-06-03 2019-06-03 Optical imaging lens Active CN110109235B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910475300.8A CN110109235B (en) 2019-06-03 2019-06-03 Optical imaging lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910475300.8A CN110109235B (en) 2019-06-03 2019-06-03 Optical imaging lens

Publications (2)

Publication Number Publication Date
CN110109235A CN110109235A (en) 2019-08-09
CN110109235B true CN110109235B (en) 2024-05-07

Family

ID=67493555

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910475300.8A Active CN110109235B (en) 2019-06-03 2019-06-03 Optical imaging lens

Country Status (1)

Country Link
CN (1) CN110109235B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112433421A (en) * 2019-08-23 2021-03-02 Oppo广东移动通信有限公司 Lens module and electronic equipment
TW202323900A (en) 2019-08-30 2023-06-16 南韓商三星電機股份有限公司 Optical imaging system
CN110609375A (en) * 2019-09-25 2019-12-24 浙江舜宇光学有限公司 Optical imaging lens
CN111025547B (en) * 2019-12-23 2021-08-20 诚瑞光学(常州)股份有限公司 Image pickup optical lens
CN112034598A (en) * 2020-10-12 2020-12-04 浙江舜宇光学有限公司 Optical imaging system
CN114063250B (en) * 2021-08-25 2023-12-15 江西晶超光学有限公司 Optical system, image capturing module and electronic device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107340591A (en) * 2011-06-29 2017-11-10 株式会社光学逻辑 Pick-up lens
CN107450158A (en) * 2017-06-05 2017-12-08 玉晶光电(厦门)有限公司 Optical imaging lens
CN109407284A (en) * 2018-12-26 2019-03-01 浙江舜宇光学有限公司 Optical imaging system
CN210015285U (en) * 2019-06-03 2020-02-04 浙江舜宇光学有限公司 Optical imaging lens

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107340591A (en) * 2011-06-29 2017-11-10 株式会社光学逻辑 Pick-up lens
CN107450158A (en) * 2017-06-05 2017-12-08 玉晶光电(厦门)有限公司 Optical imaging lens
CN109407284A (en) * 2018-12-26 2019-03-01 浙江舜宇光学有限公司 Optical imaging system
CN210015285U (en) * 2019-06-03 2020-02-04 浙江舜宇光学有限公司 Optical imaging lens

Also Published As

Publication number Publication date
CN110109235A (en) 2019-08-09

Similar Documents

Publication Publication Date Title
CN110068915B (en) Optical imaging system
CN108287403B (en) Optical imaging lens
CN110109235B (en) Optical imaging lens
CN109239891B (en) Optical imaging lens group
CN107300756B (en) Camera lens
CN108490588B (en) Optical imaging lens
CN110426826B (en) Optical imaging system
CN109613683B (en) Optical imaging system
CN107219614B (en) Optical imaging lens
CN110361854B (en) Optical imaging system
CN110045488B (en) Optical imaging lens
CN109298514B (en) Optical imaging lens group
CN110208927B (en) Optical imaging lens
CN108663782B (en) Image pickup lens
CN110187478B (en) Optical imaging lens
CN110286474B (en) Optical imaging system
CN108490587B (en) Imaging lens
CN109683286B (en) Optical imaging lens
CN110244438B (en) Optical imaging system
CN110208925B (en) Optical imaging lens
CN117706735A (en) Optical imaging lens
CN108535844B (en) Photographic lens
CN111679409A (en) Optical imaging lens
CN110780422A (en) Optical imaging lens
CN109239894B (en) Optical imaging system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant