CN114089506A - Optical imaging lens - Google Patents
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- CN114089506A CN114089506A CN202111534275.XA CN202111534275A CN114089506A CN 114089506 A CN114089506 A CN 114089506A CN 202111534275 A CN202111534275 A CN 202111534275A CN 114089506 A CN114089506 A CN 114089506A
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- 238000012634 optical imaging Methods 0.000 title claims abstract description 156
- 230000003287 optical effect Effects 0.000 claims abstract description 77
- 238000003384 imaging method Methods 0.000 claims abstract description 63
- 238000000926 separation method Methods 0.000 claims description 12
- 230000004075 alteration Effects 0.000 description 34
- 230000014509 gene expression Effects 0.000 description 17
- 235000013312 flour Nutrition 0.000 description 9
- 101100309712 Arabidopsis thaliana SD11 gene Proteins 0.000 description 8
- 201000009310 astigmatism Diseases 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
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- 229910044991 metal oxide Inorganic materials 0.000 description 1
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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
- G02B13/001—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
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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
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
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Abstract
The application discloses optical imaging lens includes following preface from object side to image side along optical axis: a first lens; a second lens having a negative optical power; a third lens having a negative optical power; a fourth lens; a fifth lens; a sixth lens element having a concave object-side surface; a seventh lens; and an eighth lens. The distance TTL from the object side surface of the first lens to the imaging surface of the optical imaging lens along the optical axis and the half ImgH of the diagonal length of the effective pixel area on the imaging surface can satisfy the following conditions: TTL/ImgH < 1.4. There is a space between adjacent lenses on the optical axis.
Description
Technical Field
The present application relates to the field of optical elements, and more particularly, to an optical imaging lens.
Background
The development of intelligent equipment is promoted to be changed day by the high-speed development of the semiconductor industry, the performance of an electronic photosensitive element is rapidly improved by the progress of the semiconductor technology, the requirement on a camera lens is higher and higher, and the camera lens needs to be developed towards the trend of a large image plane and ultra-thinning in order to obtain a better imaging effect and a more precise technology. The large image plane means that the camera lens has high resolution, and the ultra-thinness enables the camera lens to be compatible and matched with the intelligent device better, for example, the bulge of the back camera is reduced to enable the appearance of the mobile phone to be more attractive, meanwhile, a higher imaging effect is guaranteed, and great challenges are brought to lens manufacturers.
Therefore, an optical imaging lens which has the characteristics of large image plane, large aperture, ultra-thin property and the like and can meet the design requirements of intelligent equipment manufacturers is needed in the market at present.
Disclosure of Invention
An aspect of the present disclosure provides an optical imaging lens, sequentially from an object side to an image side along an optical axis, comprising: a first lens; a second lens having a negative optical power; a third lens having a negative optical power; a fourth lens; a fifth lens; a sixth lens element having a concave object-side surface; a seventh lens; and an eighth lens. The distance TTL from the object side surface of the first lens to the imaging surface of the optical imaging lens along the optical axis and the half of the diagonal length ImgH of the effective pixel area on the imaging surface can satisfy the following conditions: TTL/ImgH < 1.4. There is a space between adjacent lenses on the optical axis.
In one embodiment, a half of a distance between the seventh lens and the eighth lens on the optical axis is larger than a distance between other adjacent lenses on the optical axis.
In one embodiment, the effective focal length f2 of the second lens and the effective focal length f1 of the first lens may satisfy: 2.0< | f2/f1| < 3.0.
In one embodiment, a radius of curvature R13 of an object-side surface of the seventh lens and a radius of curvature R14 of an image-side surface of the seventh lens and an effective focal length f7 of the seventh lens may satisfy: 1.0< | R13+ R14|/f7< 1.9.
In one embodiment, a separation distance T78 between the seventh lens and the eighth lens on the optical axis and a separation distance T45 between the fourth lens and the fifth lens on the optical axis may satisfy: 3.0< T78/T45< 4.3.
In one embodiment, the effective focal length f8 of the eighth lens and the effective focal length f7 of the seventh lens may satisfy: 0.7< | f8/f7| < 1.5.
In one embodiment, the radius of curvature R3 of the object-side surface of the second lens and the radius of curvature R4 of the image-side surface of the second lens may satisfy: 2.0< R3/(R3-R4) < 3.2.
In one embodiment, the effective focal length f6 of the sixth lens, the effective focal length f7 of the seventh lens, the effective focal length f8 of the eighth lens, and the effective focal length f of the optical imaging lens may satisfy: 2.2< (| f6| + | f7| + | f8|)/f < 3.4.
In one embodiment, a combined focal length f23 of the second lens and the third lens and an effective focal length f of the optical imaging lens can satisfy: -2.5< f23/f < -1.5.
In one embodiment, the effective focal length f4 of the fourth lens and the effective focal length f1 of the first lens may satisfy: 1.8< | f4/f1| < 3.5.
In one embodiment, the half of the diagonal ImgH of the effective pixel area on the imaging plane and the maximum effective radius SD11 of the object side surface of the first lens may satisfy: 2.5< ImgH/SD11< 3.8.
In one embodiment, a combined focal length f678 of the sixth lens, the seventh lens and the eighth lens and an effective focal length f of the optical imaging lens may satisfy: 1.0< | f678/f | < 3.8.
In one embodiment, the effective focal length f6 of the sixth lens and the effective focal length f8 of the eighth lens may satisfy: 1.0< f6/f8< 1.8.
In one embodiment, a central thickness CT5 of the fifth lens on the optical axis and a central thickness CT6 of the sixth lens on the optical axis and a separation distance T56 of the fifth lens and the sixth lens on the optical axis may satisfy: 1.0< (CT5+ CT6)/T56< 2.3.
Another aspect of the present disclosure provides an optical imaging lens, in order from an object side to an image side along an optical axis, comprising: a first lens; a second lens having a negative optical power; a third lens having a negative optical power; a fourth lens; a fifth lens; a sixth lens element having a concave object-side surface; a seventh lens; and an eighth lens. The half of the diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens can satisfy: ImgH >6.0 mm. The relative F number Fno of the optical imaging lens can satisfy the following conditions: fno < 1.9. There is a space between adjacent lenses on the optical axis.
In one embodiment, a half of a distance between the seventh lens and the eighth lens on the optical axis is larger than a distance between other adjacent lenses on the optical axis.
In one embodiment, the effective focal length f2 of the second lens and the effective focal length f1 of the first lens may satisfy: 2.0< | f2/f1| < 3.0.
In one embodiment, a radius of curvature R13 of an object-side surface of the seventh lens and a radius of curvature R14 of an image-side surface of the seventh lens and an effective focal length f7 of the seventh lens may satisfy: 1.0< | R13+ R14|/f7< 1.9.
In one embodiment, a separation distance T78 between the seventh lens and the eighth lens on the optical axis and a separation distance T45 between the fourth lens and the fifth lens on the optical axis may satisfy: 3.0< T78/T45< 4.3.
In one embodiment, the effective focal length f8 of the eighth lens and the effective focal length f7 of the seventh lens may satisfy: 0.7< | f8/f7| < 1.5.
In one embodiment, the radius of curvature R3 of the object-side surface of the second lens and the radius of curvature R4 of the image-side surface of the second lens may satisfy: 2.0< R3/(R3-R4) < 3.2.
In one embodiment, the effective focal length f6 of the sixth lens, the effective focal length f7 of the seventh lens, the effective focal length f8 of the eighth lens, and the effective focal length f of the optical imaging lens may satisfy: 2.2< (| f6| + | f7| + | f8|)/f < 3.4.
In one embodiment, a combined focal length f23 of the second lens and the third lens and an effective focal length f of the optical imaging lens can satisfy: -2.5< f23/f < -1.5.
In one embodiment, the effective focal length f4 of the fourth lens and the effective focal length f1 of the first lens may satisfy: 1.8< | f4/f1| < 3.5.
In one embodiment, the half of the diagonal ImgH of the effective pixel area on the imaging plane and the maximum effective radius SD11 of the object side surface of the first lens may satisfy: 2.5< ImgH/SD11< 3.8.
In one embodiment, a combined focal length f678 of the sixth lens, the seventh lens and the eighth lens and an effective focal length f of the optical imaging lens may satisfy: 1.0< | f678/f | < 3.8.
In one embodiment, the effective focal length f6 of the sixth lens and the effective focal length f8 of the eighth lens may satisfy: 1.0< f6/f8< 1.8.
In one embodiment, a central thickness CT5 of the fifth lens on the optical axis and a central thickness CT6 of the sixth lens on the optical axis and a separation distance T56 of the fifth lens and the sixth lens on the optical axis may satisfy: 1.0< (CT5+ CT6)/T56< 2.3.
The optical imaging lens has the beneficial effects of large image surface, large aperture, ultra-thin property and the like, and is favorable for better meeting the design requirements of intelligent equipment manufacturers.
Drawings
Other features, objects, and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments when taken in conjunction with the accompanying drawings. In the drawings:
fig. 1 shows a schematic structural view of an optical imaging lens according to embodiment 1 of the present application;
fig. 2A to 2C show an on-axis chromatic aberration curve, an astigmatic curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 1;
fig. 3 is a schematic structural view showing an optical imaging lens according to embodiment 2 of the present application;
fig. 4A to 4C show an on-axis chromatic aberration curve, an astigmatic curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 2;
fig. 5 is a schematic structural view showing an optical imaging lens according to embodiment 3 of the present application;
fig. 6A to 6C show an on-axis chromatic aberration curve, an astigmatic curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 3;
fig. 7 is a schematic structural view showing an optical imaging lens according to embodiment 4 of the present application;
fig. 8A to 8C show an on-axis chromatic aberration curve, an astigmatic curve, and a chromatic aberration of magnification curve, respectively, of an optical imaging lens of embodiment 4;
fig. 9 is a schematic structural view showing an optical imaging lens according to embodiment 5 of the present application;
fig. 10A to 10C show an on-axis chromatic aberration curve, an astigmatic curve, and a chromatic aberration of magnification curve, respectively, of an optical imaging lens of embodiment 5;
fig. 11 is a schematic structural view showing an optical imaging lens according to embodiment 6 of the present application;
fig. 12A to 12C show an on-axis chromatic aberration curve, an astigmatic curve, and a chromatic aberration of magnification curve, respectively, of an optical imaging lens of embodiment 6;
fig. 13 is a schematic structural view showing an optical imaging lens according to embodiment 7 of the present application; and
fig. 14A to 14C show an on-axis chromatic aberration curve, an astigmatism curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 7.
Detailed Description
For a better understanding of the present application, various aspects of the present 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 present application and does not limit the scope of the present 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 this specification, the expressions first, second, third, etc. are used only to distinguish one feature from another, and do not represent any limitation on the features. Thus, the first lens discussed below may also be referred to as the second lens or the third lens without departing from the teachings of the present application.
In the drawings, the thickness, size, and shape of the lens have been slightly exaggerated for convenience of explanation. In particular, the shapes of the spherical or aspherical surfaces shown in the drawings are shown by way of example. That is, the shape of the spherical surface or the aspherical surface is not limited to the shape of the spherical surface or the aspherical surface shown in the drawings. The figures are purely diagrammatic and 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, it means that 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 this document, the surface of each lens closest to the subject is referred to as the object-side surface of the lens, and the surface of each lens closest to the image plane is referred to as the image-side surface of the lens.
It will be further understood that the terms "comprises," "comprising," "has," "having," "includes" 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. Moreover, when a statement such as "at least one of" appears after a list of listed features, the entirety of the listed features is modified rather than modifying individual elements in the list. Furthermore, when describing embodiments of the present application, the use of "may" mean "one or more embodiments of the present 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 the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
The features, principles, and other aspects of the present application are described in detail below.
An optical imaging lens according to an exemplary embodiment of the present application may include, for example, eight lenses, i.e., a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and an eighth lens. The eight lenses are arranged in order from an object side to an image side along an optical axis.
In an exemplary embodiment, the first lens may have a positive power or a negative power; the second lens may have a negative optical power; the third lens may have a negative optical power; the fourth lens may have a positive power or a negative power; the fifth lens may have a positive power or a negative power; the sixth lens may have a positive optical power or a negative optical power; the seventh lens may have positive or negative optical power; the eighth lens may have a positive power or a negative power.
In an exemplary embodiment, the object side surface of the sixth lens may be a concave surface.
In an exemplary embodiment, adjacent lenses may have a space therebetween on the optical axis, respectively.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy a conditional expression TTL/ImgH <1.4, where TTL is a distance along an optical axis from an object side surface of the first lens to an imaging surface of the optical imaging lens, and ImgH is a half of a diagonal length of an effective pixel area on the imaging surface. The ratio of the distance from the object side surface of the first lens to the imaging surface of the optical imaging lens along the optical axis to half of the diagonal length of the effective pixel area on the imaging surface is controlled within the range, so that the characteristic of ultra-thinning of the lens is favorably realized. More specifically, TTL and ImgH can satisfy TTL/ImgH ≦ 1.34. Illustratively, TTL can satisfy 8.8mm < TTL < 9.6mm, and ImgH can satisfy 6.5mm < ImgH < 7.5 mm.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression ImgH >6.0mm, where ImgH is half the diagonal length of an effective pixel area on an imaging plane of the optical imaging lens. By controlling the value of half of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens to be in the range, the lens has the characteristic of large image surface and high pixels. More specifically, the ImgH can satisfy ImgH ≧ 6.58 mm.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression Fno <1.9, where Fno is a relative F-number of the optical imaging lens. By controlling the relative F number of the optical imaging lens within the range, the lens has the characteristic of large aperture, which is beneficial to increasing the quantity of the entering light and improving the image quality. More specifically, Fno may satisfy Fno < 1.85.
In an exemplary embodiment, half of a distance between the seventh lens and the eighth lens on the optical axis may be greater than a distance between other adjacent lenses on the optical axis. By increasing the separation distance of the seventh lens and the eighth lens on the optical axis, the seventh lens and the eighth lens can be prevented from overlapping, while helping to restrict the magnitude of curvature of field on the image plane.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 2.0< | f2/f1| <3.0, where f2 is an effective focal length of the second lens and f1 is an effective focal length of the first lens. By controlling the absolute value of the ratio of the effective focal length of the second lens to the effective focal length of the first lens to be within this range, off-axis aberrations of the system can be advantageously balanced. More specifically, f2 and f1 can satisfy 2.1< | f2/f1| < 2.95.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 1.0< | R13+ R14|/f7<1.9, where R13 is a radius of curvature of an object-side surface of the seventh lens, R14 is a radius of curvature of an image-side surface of the seventh lens, and f7 is an effective focal length of the seventh lens. By controlling the ratio of the absolute value of the sum of the curvature radius of the object side surface of the seventh lens and the curvature radius of the image side surface of the seventh lens to the effective focal length of the seventh lens within the range, the bending shape of the seventh lens can be adjusted, and the macro performance is improved. More specifically, R13, R14, and f7 may satisfy 1.1< | R13+ R14|/f7< 1.85.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 3.0< T78/T45<4.3, where T78 is a separation distance of the seventh lens and the eighth lens on the optical axis, and T45 is a separation distance of the fourth lens and the fifth lens on the optical axis. By controlling the ratio of the distance between the seventh lens and the eighth lens on the optical axis to the distance between the fourth lens and the fifth lens on the optical axis within the range, the field curvature change of the image plane can be controlled favorably. More specifically, T78 and T45 may satisfy 3.1< T78/T45< 4.2.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 0.7< | f8/f7| <1.5, where f8 is an effective focal length of the eighth lens and f7 is an effective focal length of the seventh lens. By controlling the absolute value of the ratio of the effective focal length of the eighth lens to the effective focal length of the seventh lens to be within this range, the contribution amounts of the field curvature of the seventh lens and the eighth lens can be controlled reasonably and balanced in a reasonable state. More specifically, f8 and f7 may satisfy 0.75< | f8/f7| < 1.45.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 2.0< R3/(R3-R4) <3.2, where R3 is a radius of curvature of an object-side surface of the second lens and R4 is a radius of curvature of an image-side surface of the second lens. By controlling the curvature radius of the object side surface of the second lens and the curvature radius of the image side surface of the second lens to meet 2.0< R3/(R3-R4) <3.2, the total deflection angle of the object side surface and the image side surface of the second lens at the marginal field of view can be reasonably controlled within a reasonable range, and the sensitivity of the system can be effectively reduced. More specifically, R3 and R4 may satisfy 2.05< R3/(R3-R4) < 3.1.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 2.2< (| f6| + | f7| + | f8|)/f <3.4, where f6 is an effective focal length of the sixth lens, f7 is an effective focal length of the seventh lens, f8 is an effective focal length of the eighth lens, and f is an effective focal length of the optical imaging lens. By controlling the effective focal length of the sixth lens, the seventh lens, the eighth lens and the optical imaging lens to satisfy 2.2< (| f6| + | f7| + | f8|)/f <3.4, the system can have good imaging quality and the sensitivity of the system can be effectively reduced. More specifically, f6, f7, f8 and f can satisfy 2.3< (| f6| + | f7| + | f8|)/f < 3.3.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression-2.5 < f23/f < -1.5, where f23 is a combined focal length of the second lens and the third lens, and f is an effective focal length of the optical imaging lens. By controlling the ratio of the combined focal length of the second lens and the third lens to the effective focal length of the optical imaging lens within the range, the tendency of light entering the first three lenses can be more gradual, and the size of the front part of the lens can be favorably reduced. More specifically, f23 and f can satisfy-2.4 < f23/f < -1.55.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 1.8< | f4/f1| <3.5, where f4 is an effective focal length of the fourth lens and f1 is an effective focal length of the first lens. By controlling the absolute value of the ratio of the effective focal length of the fourth lens to the effective focal length of the first lens to be within the range, the spherical aberration contribution of the fourth lens and the first lens can be effectively controlled within a reasonable level, so that the on-axis field of view obtains good imaging quality. More specifically, f4 and f1 can satisfy 1.85< | f4/f1| < 3.4.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 2.5< ImgH/SD11<3.8, where ImgH is a half of a diagonal length of an effective pixel area on an imaging plane of the optical lens, and SD11 is a maximum effective radius of an object side surface of the first lens. By controlling the ratio of half of the diagonal length of the effective pixel area on the imaging surface of the optical lens to the maximum effective radius of the object side surface of the first lens within the range, the whole structure of the lens can be favorably ensured to be small, and the requirement of miniaturization can be favorably met. More specifically, ImgH and SD11 may satisfy 2.7< ImgH/SD11< 3.75.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 1.0< | f678/f | <3.8, where f678 is a combined focal length of the sixth lens, the seventh lens, and the eighth lens, and f is an effective focal length of the optical imaging lens. By controlling the absolute value of the ratio of the combined focal length of the sixth lens, the seventh lens and the eighth lens to the effective focal length of the optical imaging lens to be within the range, the sixth lens, the seventh lens and the eighth lens can be combined to be used as a lens group with reasonable negative focal power to balance the aberration generated by the lens group with positive focal power at the front end, so that good imaging quality is obtained, and the effect of high resolving power is realized. More specifically, f678 and f may satisfy 1.0< | f678/f | < 3.7.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 1.0< f6/f8<1.8, where f6 is an effective focal length of the sixth lens and f8 is an effective focal length of the eighth lens. By controlling the ratio of the effective focal length of the sixth lens to the effective focal length of the eighth lens within the range, the deflection angle of light can be reduced, and the imaging quality of the optical system is improved. More specifically, f6 and f8 may satisfy 1.05< f6/f8< 1.75.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 1.0< (CT5+ CT6)/T56<2.3, where CT5 is a central thickness of the fifth lens on the optical axis, CT6 is a central thickness of the sixth lens on the optical axis, and T56 is a separation distance of the fifth lens and the sixth lens on the optical axis. By controlling the ratio of the sum of the central thickness of the fifth lens on the optical axis and the central thickness of the sixth lens on the optical axis to the distance between the fifth lens and the sixth lens on the optical axis within the range, the field curvature and the distortion of the system can be effectively ensured, so that the off-axis field has good imaging quality. More specifically, CT5, CT6, and T56 may satisfy 1.1< (CT5+ CT6)/T56< 2.2.
In an exemplary embodiment, the effective focal length f of the optical imaging lens may be, for example, in the range of 6.8mm to 8.1mm, the effective focal length f1 of the first lens may be, for example, in the range of 6.6mm to 7.6mm, the effective focal length f2 of the second lens may be, for example, in the range of-21.8 mm to-14.3 mm, the effective focal length f3 of the third lens may be, for example, in the range of-222.7 mm to-35.4 mm, the effective focal length f4 of the fourth lens may be, for example, in the range of 14.3mm to 22.1mm, the effective focal length f5 of the fifth lens may be, for example, in the range of-331.2 mm to 799.1mm, the effective focal length f6 of the sixth lens may be, for example, in the range of-9.4 mm to-8.4 mm, the effective focal length f7 of the seventh lens may be, for example, in the range of-5.4 mm to 6.0mm, and the effective focal length f7 of the eighth lens may be, for example, in the range of-5.7.1 mm to-1.3 mm. The Semi-FOV of the maximum field angle of the optical imaging lens may be, for example, in the range of 41.1 ° to 43.7 °.
In an exemplary embodiment, the optical imaging lens may further include at least one diaphragm. The diaphragm can restrict the light path and control the intensity of light. The stop may be disposed at an appropriate position as needed, for example, may be disposed between the object side and the first lens. Optionally, the optical imaging lens may further include a filter for correcting color deviation and/or a protective glass for protecting a photosensitive element on the imaging surface.
The optical imaging lens according to the above-described embodiment of the present application may employ a plurality of lenses, for example, eight lenses as described above. By reasonably distributing the focal power, the surface type, the material quality, the center thickness of each lens, the on-axis distance between each lens and the like, the optical imaging lens with the characteristics of large image surface, large aperture, ultra-thin and the like can be provided, and the high requirements of the market can be better met.
In the embodiment of the present application, the mirror surfaces of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, the seventh lens, and the eighth lens may have at least one aspherical mirror surface, that is, at least one aspherical mirror surface may be included from the object side surface of the first lens to the image side surface of the eighth lens. The aspheric 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 better curvature radius characteristics, and has advantages of improving distortion aberration and improving astigmatic aberration. After the aspheric lens is adopted, the aberration generated in imaging can be eliminated as much as possible, and the imaging quality is further improved. 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, the fifth lens, the sixth lens, the seventh lens, and the eighth lens is an aspherical mirror surface. Optionally, each of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, the seventh lens, and the eighth lens has an object-side surface and an image-side surface which are aspheric mirror surfaces.
However, it will be appreciated by those skilled in the art that the number of lenses constituting an optical imaging lens may be varied to achieve the various results and advantages described in the present specification without departing from the claimed subject matter. For example, although eight lenses are exemplified in the embodiment, the optical imaging lens is not limited to include eight lenses. The optical imaging lens may also include other numbers of lenses, if desired.
Specific examples of an optical imaging lens applicable to the above-described embodiments are further described below with reference to the drawings.
Example 1
An optical imaging lens according to embodiment 1 of the present application is described below with reference to fig. 1 to 2C. Fig. 1 shows a schematic structural diagram of an optical imaging lens according to embodiment 1 of the present application.
As shown in fig. 1, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an eighth lens E8, and a filter E9.
The first lens element E1 has positive power, and has a convex object-side surface S1 and a concave image-side surface S2. The second lens element E2 has negative power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has positive power, and has a convex object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has positive power, and has a concave object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has negative power, and has a concave object-side surface S11 and a concave image-side surface S12. The seventh lens element E7 has positive power, and has a convex object-side surface S13 and a concave image-side surface S14. The eighth lens element E8 has negative power, and has a concave object-side surface S15 and a concave image-side surface S16. Filter E9 has an object side S17 and an image side S18. The optical imaging lens has an imaging surface S19, and light from the object passes through the respective surfaces S1 to S18 in order and is finally imaged on the imaging surface S19.
Table 1 shows basic parameters of the optical imaging lens of embodiment 1, in which the unit of the radius of curvature and the thickness/distance are both millimeters (mm).
TABLE 1
In embodiment 1, the object-side surface and the image-side surface of any one of the first lens E1 through the eighth lens E8 are aspheric surfaces, and the surface shape x of each aspheric lens can be defined by, but is not limited to, the following aspheric surface formula:
wherein x is the rise of the distance from the aspheric surface vertex to the aspheric surface vertex when the aspheric surface is at the position with the height of h along the optical axis direction; c is the paraxial curvature of the aspheric surface, c being 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 i-th order of the aspherical surface. The high-order term coefficients A usable for the aspherical mirror surfaces S1 to S16 in example 1 are shown in Table 2-1 and Table 2-2 below4、A6、A8、A10、A12、A14、A16、A18、A20、A22、A24、A26、A28And A30。
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 8.5467E-03 | -6.8947E-03 | 1.6471E-02 | -2.3752E-02 | 2.2872E-02 | -1.5336E-02 | 7.3359E-03 |
| S2 | -2.4193E-02 | 5.2420E-02 | -7.8260E-02 | 8.7850E-02 | -7.3786E-02 | 4.6161E-02 | -2.1470E-02 |
| S3 | -3.3391E-02 | 5.0904E-02 | -6.6479E-02 | 6.7791E-02 | -5.2254E-02 | 3.0317E-02 | -1.3225E-02 |
| S4 | -1.4218E-02 | 2.5240E-02 | -5.0530E-02 | 8.2433E-02 | -9.6660E-02 | 8.1229E-02 | -4.9357E-02 |
| S5 | -1.2905E-02 | -1.6967E-02 | 5.1343E-02 | -9.7969E-02 | 1.2693E-01 | -1.1598E-01 | 7.6050E-02 |
| S6 | -2.1564E-02 | 9.7243E-03 | -2.4357E-02 | 4.5785E-02 | -5.9886E-02 | 5.4887E-02 | -3.5953E-02 |
| S7 | -8.2886E-03 | -1.7625E-03 | -5.2585E-03 | 2.0812E-02 | -3.4838E-02 | 3.5536E-02 | -2.4385E-02 |
| S8 | -2.5127E-02 | 5.4414E-02 | -1.0927E-01 | 1.3823E-01 | -1.1990E-01 | 7.4433E-02 | -3.3908E-02 |
| S9 | 4.2103E-03 | -3.4741E-02 | 6.2882E-02 | -1.0329E-01 | 1.1271E-01 | -8.2699E-02 | 4.2470E-02 |
| S10 | 2.0016E-02 | -6.5321E-03 | -2.9485E-02 | 4.2742E-02 | -3.4704E-02 | 1.9461E-02 | -7.8735E-03 |
| S11 | 7.4490E-02 | -6.7532E-02 | 6.0415E-02 | -4.5112E-02 | 2.5356E-02 | -1.0573E-02 | 3.2717E-03 |
| S12 | -3.3211E-02 | -3.0721E-04 | 1.3803E-02 | -1.1967E-02 | 6.1204E-03 | -2.1817E-03 | 5.6407E-04 |
| S13 | -3.4354E-02 | -5.3067E-03 | 2.0630E-02 | -1.8532E-02 | 9.3236E-03 | -3.0377E-03 | 6.7932E-04 |
| S14 | 3.2294E-02 | -8.5564E-03 | -3.4406E-03 | 2.6846E-03 | -8.4887E-04 | 1.6574E-04 | -2.1990E-05 |
| S15 | -3.6382E-02 | 3.8820E-03 | 6.5609E-04 | -3.8167E-04 | 8.4713E-05 | -1.1393E-05 | 1.0234E-06 |
| S16 | -6.2831E-02 | 1.7606E-02 | -4.2225E-03 | 7.8420E-04 | -1.0945E-04 | 1.1333E-05 | -8.6662E-07 |
TABLE 2-1
Tables 2 to 2
Fig. 2A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 1, which represents the convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 2B shows an astigmatism curve representing a meridional field curvature and a sagittal field curvature of the optical imaging lens of embodiment 1. Fig. 2C shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 1, which represents a deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 2A to 2C, the optical imaging lens according to embodiment 1 can achieve good imaging quality.
Example 2
An optical imaging lens according to embodiment 2 of the present application is described below with reference to fig. 3 to 4C. In this embodiment and the following embodiments, descriptions of parts similar to those of embodiment 1 will be omitted for the sake of brevity. Fig. 3 shows a schematic structural diagram of an optical imaging lens according to embodiment 2 of the present application.
As shown in fig. 3, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an eighth lens E8, and a filter E9.
The first lens element E1 has positive power, and has a convex object-side surface S1 and a concave image-side surface S2. The second lens element E2 has negative power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has negative power, and has a concave object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has positive power, and has a convex object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has positive power, and has a concave object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has negative power, and has a concave object-side surface S11 and a convex image-side surface S12. The seventh lens element E7 has positive power, and has a convex object-side surface S13 and a concave image-side surface S14. The eighth lens element E8 has negative power, and has a convex object-side surface S15 and a concave image-side surface S16. Filter E9 has an object side S17 and an image side S18. The optical imaging lens has an imaging surface S19, and light from the object passes through the respective surfaces S1 to S18 in order and is finally imaged on the imaging surface S19.
Table 3 shows basic parameters of the optical imaging lens of embodiment 2, in which the unit of the radius of curvature and the thickness/distance are both millimeters (mm). Tables 4-1 and 4-2 show the high-order term coefficients A that can be used for the aspherical mirror surfaces S1 through S16 in example 24、A6、A8、A10、A12、A14、A16、A18、A20、A22、A24、A26、A28And A30Wherein each aspherical surface shape can be defined by the formula (1) given in the above-described embodiment 1.
TABLE 3
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 7.1956E-03 | -9.0221E-04 | 3.4658E-03 | -6.3870E-03 | 7.5831E-03 | -6.2005E-03 | 3.6295E-03 |
| S2 | -2.6661E-02 | 5.3367E-02 | -8.3136E-02 | 1.1452E-01 | -1.2900E-01 | 1.1127E-01 | -7.1429E-02 |
| S3 | -3.5249E-02 | 4.9544E-02 | -6.6325E-02 | 8.8643E-02 | -1.0629E-01 | 1.0152E-01 | -7.2646E-02 |
| S4 | -1.1409E-02 | 8.3751E-03 | -5.0661E-03 | 3.9659E-03 | -3.6935E-03 | 2.4114E-03 | -1.8759E-04 |
| S5 | -1.4910E-02 | -9.7589E-03 | 2.7336E-02 | -5.2061E-02 | 6.7900E-02 | -6.2609E-02 | 4.1506E-02 |
| S6 | -1.4741E-02 | -1.0579E-02 | 1.8476E-02 | -2.2519E-02 | 2.0302E-02 | -1.4677E-02 | 9.0018E-03 |
| S7 | -4.5394E-03 | -1.5142E-02 | 3.0748E-02 | -4.5812E-02 | 5.0127E-02 | -4.0996E-02 | 2.5130E-02 |
| S8 | -9.1065E-03 | -8.5378E-03 | 1.5060E-02 | -2.2749E-02 | 2.6098E-02 | -2.1596E-02 | 1.2767E-02 |
| S9 | -1.2340E-03 | -1.8746E-02 | 9.2690E-04 | 1.1542E-02 | -1.4069E-02 | 1.0388E-02 | -5.3890E-03 |
| S10 | 2.4778E-02 | -2.7480E-02 | 7.4929E-03 | 3.5854E-03 | -5.7392E-03 | 3.9198E-03 | -1.7713E-03 |
| S11 | 7.8807E-02 | -6.8914E-02 | 5.6350E-02 | -3.8890E-02 | 2.0699E-02 | -8.2855E-03 | 2.4720E-03 |
| S12 | -2.3243E-02 | -1.0325E-02 | 2.0383E-02 | -1.5622E-02 | 7.7284E-03 | -2.6907E-03 | 6.7606E-04 |
| S13 | -5.3347E-02 | 2.5136E-02 | -1.1333E-02 | 3.8306E-03 | -9.7124E-04 | 1.8455E-04 | -2.6164E-05 |
| S14 | 2.4779E-02 | -1.0014E-02 | 1.9642E-03 | -2.6281E-04 | 2.2006E-05 | -3.9522E-07 | -1.8601E-07 |
| S15 | -2.7496E-02 | 1.6031E-03 | 8.4457E-04 | -3.1194E-04 | 5.6883E-05 | -6.5569E-06 | 5.1319E-07 |
| S16 | -3.4508E-02 | 5.3881E-03 | -6.5947E-04 | 6.4260E-05 | -5.4577E-06 | 4.1576E-07 | -2.6941E-08 |
TABLE 4-1
| Flour mark | A18 | A20 | A22 | A24 | A26 | A28 | A30 |
| S1 | -1.5474E-03 | 4.8144E-04 | -1.0801E-04 | 1.6986E-05 | -1.7731E-06 | 1.1016E-07 | -3.0782E-09 |
| S2 | 3.3757E-02 | -1.1644E-02 | 2.8885E-03 | -5.0093E-04 | 5.7579E-05 | -3.9377E-06 | 1.2120E-07 |
| S3 | 3.8073E-02 | -1.4448E-02 | 3.9120E-03 | -7.3529E-04 | 9.1048E-05 | -6.6733E-06 | 2.1918E-07 |
| S4 | -1.1654E-03 | 1.1032E-03 | -5.2989E-04 | 1.5393E-04 | -2.7327E-05 | 2.7408E-06 | -1.1944E-07 |
| S5 | -1.9850E-02 | 6.7980E-03 | -1.6336E-03 | 2.6471E-04 | -2.6839E-05 | 1.4597E-06 | -2.8175E-08 |
| S6 | -4.5776E-03 | 1.8189E-03 | -5.3369E-04 | 1.0986E-04 | -1.4884E-05 | 1.1862E-06 | -4.1995E-08 |
| S7 | -1.1465E-02 | 3.8474E-03 | -9.3189E-04 | 1.5787E-04 | -1.7690E-05 | 1.1742E-06 | -3.4850E-08 |
| S8 | -5.4032E-03 | 1.6341E-03 | -3.4894E-04 | 5.1177E-05 | -4.8822E-06 | 2.7129E-07 | -6.6150E-09 |
| S9 | 2.0251E-03 | -5.5423E-04 | 1.0954E-04 | -1.5248E-05 | 1.4195E-06 | -7.9364E-08 | 2.0137E-09 |
| S10 | 5.6870E-04 | -1.3179E-04 | 2.1916E-05 | -2.5519E-06 | 1.9745E-07 | -9.1073E-09 | 1.8908E-10 |
| S11 | -5.4644E-04 | 8.8629E-05 | -1.0364E-05 | 8.4709E-07 | -4.5773E-08 | 1.4651E-09 | -2.0983E-11 |
| S12 | -1.2351E-04 | 1.6353E-05 | -1.5474E-06 | 1.0170E-07 | -4.4023E-09 | 1.1270E-10 | -1.2920E-12 |
| S13 | 2.7455E-06 | -2.1049E-07 | 1.1548E-08 | -4.3796E-10 | 1.0807E-11 | -1.5428E-13 | 9.4978E-16 |
| S14 | 3.0395E-08 | -2.6183E-09 | 1.4470E-10 | -5.2748E-12 | 1.2307E-13 | -1.6717E-15 | 1.0099E-17 |
| S15 | -2.8191E-08 | 1.1018E-09 | -3.0557E-11 | 5.8893E-13 | -7.5127E-15 | 5.7109E-17 | -1.9608E-19 |
| S16 | 1.3875E-09 | -5.4058E-11 | 1.5355E-12 | -3.0569E-14 | 4.0226E-16 | -3.1335E-18 | 1.0922E-20 |
TABLE 4-2
Fig. 4A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 2, which represents the convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 4B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 2. Fig. 4C shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 2, which represents a deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 4A to 4C, the optical imaging lens according to embodiment 2 can achieve good imaging quality.
Example 3
An optical imaging lens according to embodiment 3 of the present application is described below with reference to fig. 5 to 6C. Fig. 5 shows a schematic structural diagram of an optical imaging lens according to embodiment 3 of the present application.
As shown in fig. 5, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an eighth lens E8, and a filter E9.
The first lens element E1 has positive power, and has a convex object-side surface S1 and a concave image-side surface S2. The second lens element E2 has negative power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has negative power, and has a concave object-side surface S5 and a convex image-side surface S6. The fourth lens element E4 has positive power, and has a convex object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has negative power, and has a concave object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has negative power, and has a concave object-side surface S11 and a concave image-side surface S12. The seventh lens element E7 has positive power, and has a convex object-side surface S13 and a concave image-side surface S14. The eighth lens element E8 has negative power, and has a concave object-side surface S15 and a concave image-side surface S16. Filter E9 has an object side S17 and an image side S18. The optical imaging lens has an imaging surface S19, and light from the object passes through the respective surfaces S1 to S18 in order and is finally imaged on the imaging surface S19.
Table 5 shows basic parameters of the optical imaging lens of embodiment 3, in which the unit of the radius of curvature and the thickness/distance are both millimeters (mm). Tables 6-1 and 6-2 show the high-order term coefficients A that can be used for the aspherical mirror surfaces S1 to S16 in example 34、A6、A8、A10、A12、A14、A16、A18、A20、A22、A24、A26、A28And A30Wherein each aspherical surface shape can be defined by the formula (1) given in the above-described embodiment 1.
TABLE 5
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 7.9026E-03 | -6.7146E-04 | 3.5932E-03 | -7.4079E-03 | 9.2456E-03 | -7.5837E-03 | 4.2780E-03 |
| S2 | -1.4194E-02 | 1.7693E-02 | -1.0022E-02 | -1.8074E-03 | 1.0368E-02 | -1.1734E-02 | 8.0815E-03 |
| S3 | -2.7115E-02 | 2.1636E-02 | -2.3449E-03 | -2.2706E-02 | 3.9450E-02 | -3.8675E-02 | 2.5755E-02 |
| S4 | -1.3399E-02 | 7.5309E-03 | 1.3097E-02 | -4.9294E-02 | 9.0923E-02 | -1.1150E-01 | 9.6422E-02 |
| S5 | -1.4960E-02 | -9.8942E-03 | 2.8255E-02 | -5.2258E-02 | 6.5369E-02 | -5.6847E-02 | 3.4535E-02 |
| S6 | -1.3748E-02 | -1.7885E-02 | 4.4507E-02 | -7.4779E-02 | 9.0932E-02 | -8.1629E-02 | 5.4387E-02 |
| S7 | -3.5809E-03 | -1.6209E-02 | 3.5975E-02 | -5.5613E-02 | 6.2269E-02 | -5.1345E-02 | 3.1278E-02 |
| S8 | -8.2400E-03 | -1.6387E-03 | -8.5528E-03 | 2.2534E-02 | -3.0885E-02 | 2.7939E-02 | -1.7823E-02 |
| S9 | 5.9626E-03 | -3.1547E-02 | 1.7941E-02 | -7.0039E-03 | 1.3141E-03 | 9.8053E-04 | -1.1078E-03 |
| S10 | 3.1683E-02 | -4.3531E-02 | 3.0271E-02 | -2.1256E-02 | 1.4180E-02 | -7.6754E-03 | 3.1623E-03 |
| S11 | 7.4370E-02 | -7.0142E-02 | 6.4883E-02 | -4.9171E-02 | 2.7964E-02 | -1.1798E-02 | 3.6905E-03 |
| S12 | -2.3027E-02 | -1.2255E-02 | 2.3772E-02 | -1.8074E-02 | 8.8448E-03 | -3.0589E-03 | 7.6752E-04 |
| S13 | -4.8071E-02 | 1.9961E-02 | -8.5358E-03 | 2.8027E-03 | -6.9869E-04 | 1.3152E-04 | -1.8661E-05 |
| S14 | 2.3390E-02 | -1.0440E-02 | 2.1436E-03 | -2.7103E-04 | 1.5077E-05 | 1.2882E-06 | -3.5908E-07 |
| S15 | -4.4141E-02 | 1.1356E-02 | -2.2361E-03 | 2.8334E-04 | -1.7301E-05 | -4.3564E-07 | 1.7932E-07 |
| S16 | -5.0125E-02 | 1.3851E-02 | -3.1121E-03 | 5.2163E-04 | -6.5132E-05 | 6.0527E-06 | -4.1777E-07 |
TABLE 6-1
| Flour mark | A18 | A20 | A22 | A24 | A26 | A28 | A30 |
| S1 | -1.6956E-03 | 4.7422E-04 | -9.2463E-05 | 1.2164E-05 | -1.0105E-06 | 4.6254E-08 | -8.2155E-10 |
| S2 | -3.8398E-03 | 1.2993E-03 | -3.1305E-04 | 5.2515E-05 | -5.8275E-06 | 3.8420E-07 | -1.1382E-08 |
| S3 | -1.2247E-02 | 4.2203E-03 | -1.0491E-03 | 1.8379E-04 | -2.1561E-05 | 1.5215E-06 | -4.8839E-08 |
| S4 | -5.9882E-02 | 2.6772E-02 | -8.5284E-03 | 1.8857E-03 | -2.7467E-04 | 2.3679E-05 | -9.1443E-07 |
| S5 | -1.4466E-02 | 3.9955E-03 | -6.3291E-04 | 2.1855E-05 | 1.1576E-05 | -2.1180E-06 | 1.2062E-07 |
| S6 | -2.6854E-02 | 9.7533E-03 | -2.5618E-03 | 4.7140E-04 | -5.7380E-05 | 4.1306E-06 | -1.3251E-07 |
| S7 | -1.4061E-02 | 4.6363E-03 | -1.1045E-03 | 1.8453E-04 | -2.0463E-05 | 1.3498E-06 | -4.0014E-08 |
| S8 | 8.2003E-03 | -2.7324E-03 | 6.5291E-04 | -1.0897E-04 | 1.2048E-05 | -7.9188E-07 | 2.3385E-08 |
| S9 | 5.5588E-04 | -1.7248E-04 | 3.5300E-05 | -4.7942E-06 | 4.1902E-07 | -2.1608E-08 | 5.0827E-10 |
| S10 | -9.7267E-04 | 2.2074E-04 | -3.6323E-05 | 4.2014E-06 | -3.2301E-07 | 1.4779E-08 | -3.0378E-10 |
| S11 | -8.5421E-04 | 1.4524E-04 | -1.7848E-05 | 1.5378E-06 | -8.7894E-08 | 2.9861E-09 | -4.5556E-11 |
| S12 | -1.4067E-04 | 1.8759E-05 | -1.7945E-06 | 1.1965E-07 | -5.2705E-09 | 1.3768E-10 | -1.6140E-12 |
| S13 | 1.9846E-06 | -1.5637E-07 | 8.9576E-09 | -3.6217E-10 | 9.8163E-12 | -1.6086E-13 | 1.2131E-15 |
| S14 | 3.7064E-08 | -2.2180E-09 | 7.7516E-11 | -1.2112E-12 | -1.1931E-14 | 7.6976E-16 | -8.7797E-18 |
| S15 | -1.6779E-08 | 9.1150E-10 | -3.2351E-11 | 7.6407E-13 | -1.1635E-14 | 1.0376E-16 | -4.1269E-19 |
| S16 | 2.1362E-08 | -8.0438E-10 | 2.1996E-11 | -4.2481E-13 | 5.4945E-15 | -4.2715E-17 | 1.5092E-19 |
TABLE 6-2
Fig. 6A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 3, which represents the convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 6B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 3. Fig. 6C shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 3, which represents a deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 6A to 6C, the optical imaging lens according to embodiment 3 can achieve good imaging quality.
Example 4
An optical imaging lens according to embodiment 4 of the present application is described below with reference to fig. 7 to 8C. Fig. 7 shows a schematic structural diagram of an optical imaging lens according to embodiment 4 of the present application.
As shown in fig. 7, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an eighth lens E8, and a filter E9.
The first lens element E1 has positive power, and has a convex object-side surface S1 and a concave image-side surface S2. The second lens element E2 has negative power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has negative power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has positive power, and has a convex object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has positive power, and has a concave object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has negative power, and has a concave object-side surface S11 and a concave image-side surface S12. The seventh lens element E7 has positive power, and has a convex object-side surface S13 and a concave image-side surface S14. The eighth lens element E8 has negative power, and has a convex object-side surface S15 and a concave image-side surface S16. Filter E9 has an object side S17 and an image side S18. The optical imaging lens has an imaging surface S19, and light from the object passes through the respective surfaces S1 to S18 in order and is finally imaged on the imaging surface S19.
Table 7 shows basic parameters of the optical imaging lens of embodiment 4, in which the unit of the radius of curvature and the thickness/distance are both millimeters (mm). Tables 8-1 and 8-2 show the high-order term coefficients A that can be used for the aspherical mirror surfaces S1 to S16 in example 44、A6、A8、A10、A12、A14、A16、A18、A20、A22、A24、A26、A28And A30Wherein each aspherical surface shape can be defined by the formula (1) given in the above-described embodiment 1.
TABLE 7
TABLE 8-1
| Flour mark | A18 | A20 | A22 | A24 | A26 | A28 | A30 |
| S1 | -6.5481E-04 | 2.1338E-04 | -4.8439E-05 | 7.5332E-06 | -7.6598E-07 | 4.5893E-08 | -1.2289E-09 |
| S2 | 1.7809E-02 | -5.5036E-03 | 1.2522E-03 | -2.0291E-04 | 2.2098E-05 | -1.4464E-06 | 4.2905E-08 |
| S3 | 2.7843E-02 | -9.3911E-03 | 2.3211E-03 | -4.0649E-04 | 4.7617E-05 | -3.3378E-06 | 1.0565E-07 |
| S4 | -3.7074E-02 | 1.6271E-02 | -5.0658E-03 | 1.0940E-03 | -1.5586E-04 | 1.3172E-05 | -4.9998E-07 |
| S5 | -2.5655E-02 | 1.0900E-02 | -3.2800E-03 | 6.8254E-04 | -9.3351E-05 | 7.5422E-06 | -2.7245E-07 |
| S6 | -1.0660E-02 | 3.9215E-03 | -1.0329E-03 | 1.9019E-04 | -2.3260E-05 | 1.6974E-06 | -5.5886E-08 |
| S7 | -5.5350E-04 | 8.9014E-05 | -2.1039E-06 | -2.2977E-06 | 4.9578E-07 | -4.6088E-08 | 1.7265E-09 |
| S8 | -4.6230E-04 | 1.3082E-04 | -2.5318E-05 | 3.1872E-06 | -2.3482E-07 | 7.6483E-09 | 2.4774E-12 |
| S9 | 3.3101E-03 | -8.8741E-04 | 1.7076E-04 | -2.2962E-05 | 2.0455E-06 | -1.0829E-07 | 2.5756E-09 |
| S10 | 9.0809E-04 | -2.0635E-04 | 3.3500E-05 | -3.7914E-06 | 2.8386E-07 | -1.2614E-08 | 2.5142E-10 |
| S11 | -3.0878E-04 | 4.7153E-05 | -5.2141E-06 | 4.0445E-07 | -2.0800E-08 | 6.3474E-10 | -8.6731E-12 |
| S12 | -8.3906E-05 | 1.0616E-05 | -9.6793E-07 | 6.1847E-08 | -2.6281E-09 | 6.6766E-11 | -7.6854E-13 |
| S13 | -4.1518E-07 | 7.6811E-08 | -7.2506E-09 | 4.2268E-10 | -1.5313E-11 | 3.1702E-13 | -2.8708E-15 |
| S14 | 1.8222E-07 | -1.2634E-08 | 6.2207E-10 | -2.1294E-11 | 4.8202E-13 | -6.4875E-15 | 3.9299E-17 |
| S15 | -9.0048E-09 | 4.2843E-10 | -1.3911E-11 | 3.0660E-13 | -4.4021E-15 | 3.7224E-17 | -1.4087E-19 |
| S16 | 4.3086E-09 | -1.3489E-10 | 3.0717E-12 | -4.9529E-14 | 5.3658E-16 | -3.5084E-18 | 1.0475E-20 |
TABLE 8-2
Fig. 8A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 4, which represents the convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 8B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 4. Fig. 8C shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 4, which represents a deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 8A to 8C, the optical imaging lens according to embodiment 4 can achieve good imaging quality.
Example 5
An optical imaging lens according to embodiment 5 of the present application is described below with reference to fig. 9 to 10C. Fig. 9 shows a schematic structural diagram of an optical imaging lens according to embodiment 5 of the present application.
As shown in fig. 9, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an eighth lens E8, and a filter E9.
The first lens element E1 has positive power, and has a convex object-side surface S1 and a concave image-side surface S2. The second lens element E2 has negative power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has negative power, and has a concave object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has positive power, and has a convex object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has negative power, and has a concave object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has negative power, and has a concave object-side surface S11 and a convex image-side surface S12. The seventh lens element E7 has positive power, and has a convex object-side surface S13 and a concave image-side surface S14. The eighth lens element E8 has negative power, and has a convex object-side surface S15 and a concave image-side surface S16. Filter E9 has an object side S17 and an image side S18. The optical imaging lens has an imaging surface S19, and light from the object passes through the respective surfaces S1 to S18 in order and is finally imaged on the imaging surface S19.
Table 9 shows basic parameters of the optical imaging lens of embodiment 5, in which the unit of the radius of curvature and the thickness/distance are both millimeters (mm). Tables 10-1 and 10-2 show the high-order term coefficients A that can be used for the aspherical mirror surfaces S1 to S16 in example 54、A6、A8、A10、A12、A14、A16、A18、A20、A22、A24、A26、A28And A30Wherein each aspherical surface shape can be defined by the formula (1) given in the above-described embodiment 1.
TABLE 9
TABLE 10-1
| Flour mark | A18 | A20 | A22 | A24 | A26 | A28 | A30 |
| S1 | 2.4096E-04 | -8.1092E-05 | 1.9339E-05 | -3.1476E-06 | 3.3046E-07 | -2.0066E-08 | 5.3236E-10 |
| S2 | 2.9236E-02 | -9.8221E-03 | 2.4054E-03 | -4.1591E-04 | 4.7999E-05 | -3.3117E-06 | 1.0317E-07 |
| S3 | 4.9880E-02 | -1.7844E-02 | 4.6194E-03 | -8.3971E-04 | 1.0147E-04 | -7.3079E-06 | 2.3711E-07 |
| S4 | -4.2893E-02 | 1.9029E-02 | -6.0054E-03 | 1.3162E-03 | -1.9038E-04 | 1.6337E-05 | -6.2979E-07 |
| S5 | 1.4104E-02 | -6.5747E-03 | 2.1467E-03 | -4.8080E-04 | 7.0359E-05 | -6.0587E-06 | 2.3282E-07 |
| S6 | -1.1444E-03 | 4.4941E-04 | -1.3670E-04 | 3.0313E-05 | -4.5415E-06 | 4.0555E-07 | -1.6128E-08 |
| S7 | -1.3065E-03 | 4.5873E-04 | -1.1564E-04 | 2.0340E-05 | -2.3737E-06 | 1.6495E-07 | -5.1372E-09 |
| S8 | -2.0066E-04 | -2.4252E-05 | 2.4143E-05 | -6.6070E-06 | 9.7121E-07 | -7.7362E-08 | 2.6332E-09 |
| S9 | 4.2563E-03 | -1.2323E-03 | 2.5542E-04 | -3.6956E-05 | 3.5428E-06 | -2.0204E-07 | 5.1832E-09 |
| S10 | 1.2603E-03 | -3.0338E-04 | 5.2006E-05 | -6.1986E-06 | 4.8788E-07 | -2.2772E-08 | 4.7666E-10 |
| S11 | -3.8110E-04 | 5.9019E-05 | -6.5982E-06 | 5.1530E-07 | -2.6539E-08 | 8.0584E-10 | -1.0869E-11 |
| S12 | -1.1065E-04 | 1.4032E-05 | -1.2677E-06 | 7.9184E-08 | -3.2371E-09 | 7.7659E-11 | -8.2628E-13 |
| S13 | 1.7473E-06 | -1.2466E-07 | 6.2868E-09 | -2.1405E-10 | 4.5326E-12 | -5.0424E-14 | 1.8270E-16 |
| S14 | 6.2661E-08 | -4.8334E-09 | 2.5620E-10 | -9.2526E-12 | 2.1792E-13 | -3.0227E-15 | 1.8766E-17 |
| S15 | -2.5675E-08 | 9.8699E-10 | -2.6839E-11 | 5.0550E-13 | -6.2803E-15 | 4.6334E-17 | -1.5384E-19 |
| S16 | 1.4688E-09 | -5.9778E-11 | 1.7332E-12 | -3.4693E-14 | 4.5467E-16 | -3.5065E-18 | 1.2057E-20 |
TABLE 10-2
Fig. 10A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 5, which represents the convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 10B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 5. Fig. 10C shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 5, which represents a deviation of different image heights on the imaging surface after light passes through the lens. As can be seen from fig. 10A to 10C, the optical imaging lens according to embodiment 5 can achieve good imaging quality.
Example 6
An optical imaging lens according to embodiment 6 of the present application is described below with reference to fig. 11 to 12C. Fig. 11 shows a schematic structural view of an optical imaging lens according to embodiment 6 of the present application.
As shown in fig. 11, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an eighth lens E8, and a filter E9.
The first lens element E1 has positive power, and has a convex object-side surface S1 and a concave image-side surface S2. The second lens element E2 has negative power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has negative power, and has a concave object-side surface S5 and a convex image-side surface S6. The fourth lens element E4 has positive power, and has a convex object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has negative power, and has a concave object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has negative power, and has a concave object-side surface S11 and a convex image-side surface S12. The seventh lens element E7 has positive power, and has a convex object-side surface S13 and a concave image-side surface S14. The eighth lens element E8 has negative power, and has a convex object-side surface S15 and a concave image-side surface S16. Filter E9 has an object side S17 and an image side S18. The optical imaging lens has an imaging surface S19, and light from the object passes through the respective surfaces S1 to S18 in order and is finally imaged on the imaging surface S19.
Table 11 shows basic parameters of the optical imaging lens of embodiment 6, in which the unit of the radius of curvature and the thickness/distance are both millimeters (mm). Tables 12-1 and 12-2 show the high-order term coefficients A that can be used for the aspherical mirror surfaces S1 to S16 in example 64、A6、A8、A10、A12、A14、A16、A18、A20、A22、A24、A26、A28And A30Wherein each aspherical surface shape can be defined by the formula (1) given in the above-described embodiment 1.
TABLE 11
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 6.5543E-03 | 3.4555E-03 | -9.6918E-03 | 1.7797E-02 | -2.1745E-02 | 1.8436E-02 | -1.1094E-02 |
| S2 | -2.8340E-02 | 5.8764E-02 | -8.2693E-02 | 9.5892E-02 | -9.2917E-02 | 7.3269E-02 | -4.5450E-02 |
| S3 | -3.9108E-02 | 5.9238E-02 | -7.4673E-02 | 8.1977E-02 | -7.9205E-02 | 6.5404E-02 | -4.3718E-02 |
| S4 | -1.2420E-02 | 2.3072E-03 | 3.2947E-02 | -1.0428E-01 | 1.8772E-01 | -2.2662E-01 | 1.9274E-01 |
| S5 | -1.6457E-02 | 3.0337E-04 | -3.3399E-03 | 8.7345E-03 | -1.4487E-02 | 1.5897E-02 | -1.2009E-02 |
| S6 | -1.6268E-02 | -7.8093E-03 | 2.1002E-02 | -4.0246E-02 | 5.4844E-02 | -5.4048E-02 | 3.9064E-02 |
| S7 | -7.0579E-03 | -2.2553E-03 | -2.6720E-05 | 5.0368E-03 | -1.0097E-02 | 1.0988E-02 | -7.7590E-03 |
| S8 | -8.9732E-03 | -3.9324E-03 | 2.2079E-04 | 3.9527E-03 | -6.7244E-03 | 6.7300E-03 | -4.6307E-03 |
| S9 | 1.3864E-03 | -2.2785E-02 | 1.0772E-03 | 1.2621E-02 | -1.2703E-02 | 7.2220E-03 | -2.6818E-03 |
| S10 | 2.9086E-02 | -3.2032E-02 | 8.8323E-03 | 3.7638E-03 | -5.3951E-03 | 3.1637E-03 | -1.2153E-03 |
| S11 | 6.9629E-02 | -5.1706E-02 | 3.6752E-02 | -2.3410E-02 | 1.1794E-02 | -4.5093E-03 | 1.2896E-03 |
| S12 | -2.2322E-02 | -6.4255E-03 | 1.4398E-02 | -1.0845E-02 | 5.1824E-03 | -1.7349E-03 | 4.1929E-04 |
| S13 | -4.5903E-02 | 1.8560E-02 | -7.4369E-03 | 2.2242E-03 | -5.0816E-04 | 8.9301E-05 | -1.1919E-05 |
| S14 | 2.1243E-02 | -8.5814E-03 | 1.8535E-03 | -3.6786E-04 | 6.7185E-05 | -9.8924E-06 | 1.0851E-06 |
| S15 | -2.8146E-02 | 1.4486E-03 | 1.0788E-03 | -3.8886E-04 | 7.1170E-05 | -8.3665E-06 | 6.7866E-07 |
| S16 | -3.2077E-02 | 4.1357E-03 | -2.5566E-04 | -1.6580E-05 | 5.4398E-06 | -6.1205E-07 | 4.2645E-08 |
TABLE 12-1
TABLE 12-2
Fig. 12A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 6, which represents the convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 12B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 6. Fig. 12C shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 6, which represents a deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 12A to 12C, the optical imaging lens according to embodiment 6 can achieve good imaging quality.
Example 7
An optical imaging lens according to embodiment 7 of the present application is described below with reference to fig. 13 to 14C. Fig. 13 is a schematic structural view showing an optical imaging lens according to embodiment 7 of the present application.
As shown in fig. 13, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an eighth lens E8, and a filter E9.
The first lens element E1 has positive power, and has a convex object-side surface S1 and a concave image-side surface S2. The second lens element E2 has negative power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has negative power, and has a concave object-side surface S5 and a convex image-side surface S6. The fourth lens element E4 has positive power, and has a convex object-side surface S7 and a convex image-side surface S8. The fifth lens element E5 has negative power, and has a concave object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has negative power, and has a concave object-side surface S11 and a concave image-side surface S12. The seventh lens element E7 has positive power, and has a convex object-side surface S13 and a concave image-side surface S14. The eighth lens element E8 has negative power, and has a concave object-side surface S15 and a concave image-side surface S16. Filter E9 has an object side S17 and an image side S18. The optical imaging lens has an imaging surface S19, and light from the object passes through the respective surfaces S1 to S18 in order and is finally imaged on the imaging surface S19.
Table 13 shows basic parameters of the optical imaging lens of embodiment 7, in which the unit of the radius of curvature and the thickness/distance are both millimeters (mm). Tables 14-1 and 14-2 show the high-order term coefficients A that can be used for the aspherical mirror surfaces S1 to S16 in example 74、A6、A8、A10、A12、A14、A16、A18、A20、A22、A24、A26、A28And A30Wherein each aspherical surface shape can be defined by the formula (1) given in the above-described embodiment 1.
Watch 13
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 7.5697E-03 | 1.3095E-03 | -2.4343E-03 | 3.1631E-03 | -2.4744E-03 | 1.1147E-03 | -1.7698E-04 |
| S2 | -1.4979E-02 | 2.0843E-02 | -1.7754E-02 | 1.1598E-02 | -6.0308E-03 | 2.6158E-03 | -1.0306E-03 |
| S3 | -2.7670E-02 | 2.2861E-02 | -2.3750E-03 | -3.2193E-02 | 6.6025E-02 | -7.7164E-02 | 6.0879E-02 |
| S4 | -1.3051E-02 | 5.4634E-03 | 1.8259E-02 | -5.9859E-02 | 1.0588E-01 | -1.2619E-01 | 1.0668E-01 |
| S5 | -1.5288E-02 | -1.3444E-02 | 4.8359E-02 | -1.1540E-01 | 1.8945E-01 | -2.1947E-01 | 1.8215E-01 |
| S6 | -1.2841E-02 | -2.4368E-02 | 6.7201E-02 | -1.2617E-01 | 1.6787E-01 | -1.6046E-01 | 1.1140E-01 |
| S7 | -3.3157E-03 | -1.4176E-02 | 2.6931E-02 | -3.8535E-02 | 4.0946E-02 | -3.2094E-02 | 1.8550E-02 |
| S8 | -7.7196E-03 | -2.6600E-03 | -5.0284E-03 | 1.1975E-02 | -1.4427E-02 | 1.1928E-02 | -7.2217E-03 |
| S9 | 4.0307E-03 | -2.2777E-02 | 5.4470E-04 | 1.2974E-02 | -1.4828E-02 | 1.0875E-02 | -5.8156E-03 |
| S10 | 2.8539E-02 | -3.3153E-02 | 1.3921E-02 | -5.3102E-03 | 3.4137E-03 | -2.3638E-03 | 1.2029E-03 |
| S11 | 7.2982E-02 | -6.3234E-02 | 5.4533E-02 | -3.9641E-02 | 2.1932E-02 | -9.0678E-03 | 2.7898E-03 |
| S12 | -2.2787E-02 | -1.4032E-02 | 2.5685E-02 | -1.9538E-02 | 9.6970E-03 | -3.4171E-03 | 8.7455E-04 |
| S13 | -4.7357E-02 | 1.8951E-02 | -7.7870E-03 | 2.4070E-03 | -5.5904E-04 | 9.8466E-05 | -1.3208E-05 |
| S14 | 2.7663E-02 | -1.2036E-02 | 2.5423E-03 | -3.8087E-04 | 4.5838E-05 | -5.2981E-06 | 6.3114E-07 |
| S15 | -4.3584E-02 | 7.8842E-03 | -3.3718E-05 | -4.3162E-04 | 1.2788E-04 | -2.0342E-05 | 2.0950E-06 |
| S16 | -4.2474E-02 | 8.8058E-03 | -1.3478E-03 | 1.4588E-04 | -1.1729E-05 | 7.3729E-07 | -3.6607E-08 |
TABLE 14-1
TABLE 14-2
Fig. 14A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 7, which represents the convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 14B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 7. Fig. 14C shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 7, which represents a deviation of different image heights on the imaging surface after light passes through the lens. As can be seen from fig. 14A to 14C, the optical imaging lens according to embodiment 7 can achieve good imaging quality.
Further, in embodiments 1 to 7, the effective focal length values F1 to F8 of the respective lenses, the effective focal length F of the optical imaging lens, the distance TTL along the optical axis from the object side surface of the first lens to the imaging surface of the optical imaging lens, half ImgH of the diagonal length of the effective pixel area on the imaging surface, half Semi-FOV of the maximum angle of view of the optical imaging lens, and the relative F-number Fno of the optical imaging lens are as shown in table 15.
| Parameters/ |
1 | 2 | 3 | 4 | 5 | 6 | 7 |
| f1(mm) | 7.58 | 7.35 | 6.67 | 7.43 | 7.33 | 7.08 | 6.68 |
| f2(mm) | -21.71 | -19.14 | -14.38 | -17.57 | -19.02 | -17.16 | -14.84 |
| f3(mm) | -96.37 | -35.48 | -222.64 | -49.08 | -40.58 | -222.64 | -222.64 |
| f4(mm) | 20.31 | 15.95 | 22.00 | 14.37 | 15.14 | 14.51 | 16.66 |
| f5(mm) | 138.88 | 799.03 | -331.17 | 798.95 | -93.07 | -37.57 | -69.34 |
| f6(mm) | -8.41 | -8.48 | -9.05 | -8.41 | -8.84 | -9.37 | -9.00 |
| f7(mm) | 5.98 | 5.70 | 5.84 | 5.87 | 5.67 | 5.95 | 5.49 |
| f8(mm) | -5.12 | -7.32 | -6.32 | -7.03 | -7.59 | -7.11 | -6.24 |
| f(mm) | 8.00 | 7.42 | 7.42 | 7.42 | 7.28 | 7.16 | 6.83 |
| TTL(mm) | 8.81 | 9.53 | 9.11 | 9.51 | 9.51 | 9.51 | 8.81 |
| ImgH(mm) | 7.15 | 7.38 | 7.15 | 7.40 | 7.40 | 7.40 | 6.58 |
| Semi-FOV(°) | 41.18 | 43.61 | 42.64 | 43.68 | 43.67 | 43.63 | 42.65 |
| Fno | 1.61 | 1.75 | 1.75 | 1.77 | 1.75 | 1.75 | 1.75 |
Table 15 each of the conditional expressions in example 1 to example 7 satisfies the condition shown in table 16.
TABLE 16
The present application also provides an imaging Device, which is provided with an electron sensing element to form an image, wherein the electron sensing element may be a Charge Coupled Device (CCD) or a Complementary Metal Oxide Semiconductor (CMOS). The imaging device may be a stand-alone imaging device such as a digital camera, or may be an imaging module integrated on a mobile electronic device such as a mobile phone. The imaging device is equipped with the optical imaging lens described above.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of protection covered by the present application is not limited to the embodiments with a specific combination of the features described above, but also covers other embodiments with any combination of the features described above or their equivalents without departing from the scope of the present application. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (10)
1. The optical imaging lens assembly, in order from an object side to an image side along an optical axis, comprises:
a first lens;
a second lens having a negative optical power;
a third lens having a negative optical power;
a fourth lens;
a fifth lens;
a sixth lens element having a concave object-side surface;
a seventh lens; and
a fourth lens element for forming a third lens element,
the optical imaging lens satisfies:
TTL/ImgH <1.4, wherein, TTL is the distance between the object side surface of the first lens and the imaging surface of the optical imaging lens along the optical axis, and ImgH is half of the length of the diagonal of the effective pixel area on the imaging surface; and
there is a space between adjacent lenses on the optical axis.
2. The optical imaging lens according to claim 1, wherein half of a distance between the seventh lens and the eighth lens on the optical axis is larger than a distance between other adjacent lenses on the optical axis.
3. The optical imaging lens of claim 1, wherein the effective focal length f2 of the second lens and the effective focal length f1 of the first lens satisfy:
2.0<|f2/f1|<3.0。
4. the optical imaging lens of claim 1, wherein the radius of curvature R13 of the object-side surface of the seventh lens, the radius of curvature R14 of the image-side surface of the seventh lens, and the effective focal length f7 of the seventh lens satisfy:
1.0<|R13+R14|/f7<1.9。
5. the optical imaging lens according to claim 1, wherein a separation distance T78 on the optical axis between the seventh lens and the eighth lens and a separation distance T45 on the optical axis between the fourth lens and the fifth lens satisfy:
3.0<T78/T45<4.3。
6. the optical imaging lens of claim 1, wherein the effective focal length f8 of the eighth lens and the effective focal length f7 of the seventh lens satisfy:
0.7<|f8/f7|<1.5。
7. the optical imaging lens of claim 1, wherein the radius of curvature R3 of the object-side surface of the second lens and the radius of curvature R4 of the image-side surface of the second lens satisfy:
2.0<R3/(R3-R4)<3.2。
8. the optical imaging lens of claim 1, wherein the effective focal length f6 of the sixth lens, the effective focal length f7 of the seventh lens, the effective focal length f8 of the eighth lens, and the effective focal length f of the optical imaging lens satisfy:
2.2<(|f6|+|f7|+|f8|)/f<3.4。
9. the optical imaging lens according to any one of claims 1 to 8, wherein a combined focal length f23 of the second lens and the third lens and an effective focal length f of the optical imaging lens satisfy:
-2.5<f23/f<-1.5。
10. the optical imaging lens assembly, in order from an object side to an image side along an optical axis, comprises:
a first lens;
a second lens having a negative optical power;
a third lens having a negative optical power;
a fourth lens;
a fifth lens;
a sixth lens element having a concave object-side surface;
a seventh lens; and
a fourth lens element for forming a third lens element,
the optical imaging lens satisfies:
the image height of the optical imaging lens is 6.0mm, and Fno <1.9, wherein the image height is half of the diagonal length of an effective pixel area on an imaging surface of the optical imaging lens, and the Fno is the relative F number of the optical imaging lens; and
there is a space between adjacent lenses on the optical axis.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114779439A (en) * | 2022-04-28 | 2022-07-22 | 浙江舜宇光学有限公司 | Optical imaging lens |
| CN115480365A (en) * | 2022-07-29 | 2022-12-16 | 江西晶超光学有限公司 | Optical system, image capturing module and electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019056946A (en) * | 2019-01-21 | 2019-04-11 | カンタツ株式会社 | Imaging lens |
| CN112083550A (en) * | 2019-06-12 | 2020-12-15 | 大立光电股份有限公司 | Photographing lens assembly, image capturing device and electronic device |
| CN112630933A (en) * | 2020-11-30 | 2021-04-09 | 江西晶超光学有限公司 | Optical system, camera module and electronic equipment |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019056946A (en) * | 2019-01-21 | 2019-04-11 | カンタツ株式会社 | Imaging lens |
| CN112083550A (en) * | 2019-06-12 | 2020-12-15 | 大立光电股份有限公司 | Photographing lens assembly, image capturing device and electronic device |
| CN112630933A (en) * | 2020-11-30 | 2021-04-09 | 江西晶超光学有限公司 | Optical system, camera module and electronic equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114779439A (en) * | 2022-04-28 | 2022-07-22 | 浙江舜宇光学有限公司 | Optical imaging lens |
| CN114779439B (en) * | 2022-04-28 | 2023-07-18 | 浙江舜宇光学有限公司 | Optical imaging lens |
| CN115480365A (en) * | 2022-07-29 | 2022-12-16 | 江西晶超光学有限公司 | Optical system, image capturing module and electronic equipment |
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