CN212515181U - Optical imaging lens - Google Patents
Optical imaging lens Download PDFInfo
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- CN212515181U CN212515181U CN202021215118.3U CN202021215118U CN212515181U CN 212515181 U CN212515181 U CN 212515181U CN 202021215118 U CN202021215118 U CN 202021215118U CN 212515181 U CN212515181 U CN 212515181U
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Abstract
The application discloses an optical imaging lens, it includes from the object side to the image side along the optical axis in proper order: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, and a ninth lens; any two adjacent lenses in the first lens to the ninth lens have an air space on an optical axis; half of the Semi-FOV of the maximum field angle of the optical imaging lens meets the condition that the Semi-FOV is more than or equal to 45 degrees; the effective focal length f7 of the seventh lens and the effective focal length f1 of the first lens meet 2.0 < f7/f1 < 3.5.
Description
Technical Field
The present application relates to the field of optical elements, and more particularly, to an optical imaging lens.
Background
After the mobile phone is provided with the mobile phone camera, the requirement of people for taking pictures by using the mobile phone is released, and then the performance requirement of consumers on the mobile phone camera is continuously improved.
In 2000, the first worldwide camera phone with a camera, which carries a rear camera with 11 ten thousand pixels, was released. In 2005, the camera of the mobile phone has a new function of automatic focusing. In the following decades, the performance of the mobile phone camera is rapidly improved along with the vigorous development of the smart phone. For example, in 2010, cell phone cameras were still at the 800 million pixel level, while in 2020, cell phone cameras have reached 1 million pixels. Not only the performance of single camera realizes striding over formula development, has still developed the module of making a video recording that has a plurality of cameras today.
The camera module with a plurality of cameras can generally comprise lenses with different functions such as a wide-angle lens, a telephoto lens, a black-and-white lens, a depth-of-field auxiliary lens, a zoom lens, a 3D lens and the like, and different shooting effects are realized through different collocation and corresponding image algorithm designs. For example, wide-angle lenses are used to receive a wide range of scenes, and may form larger images alone, may be cropped, or may be combined with other images. And the better the image quality of the initial image shot by a single lens is, the better the image quality of the subsequently generated image is.
In the past 20 years, the mobile phone camera is newly developed every time, and more surprising functions are brought to users. Consumers still expect better performance of the mobile phone camera.
SUMMERY OF THE UTILITY MODEL
In one aspect, the present application 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, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, and a ninth lens; any two adjacent lenses in the first lens to the ninth lens have an air space on an optical axis; half of the Semi-FOV of the maximum field angle of the optical imaging lens can meet the condition that the Semi-FOV is more than or equal to 45 degrees; the effective focal length f7 of the seventh lens and the effective focal length f1 of the first lens can satisfy 2.0 < f7/f1 < 3.5.
In one embodiment, the object-side surface of the first lens to the image-side surface of the ninth lens have at least one aspherical mirror surface.
In one embodiment, the effective focal length f4 of the fourth lens, the effective focal length f5 of the fifth lens, and the effective focal length f8 of the eighth lens may satisfy 2.0 < f5/(f4+ f8) < 4.5.
In one embodiment, the effective focal length f9 of the ninth lens and the total effective focal length f of the optical imaging lens can satisfy-1.5 < f9/f < -0.5.
In one embodiment, the radius of curvature R1 of the object-side surface of the first lens, the radius of curvature R6 of the image-side surface of the third lens, and the radius of curvature R8 of the image-side surface of the fourth lens may satisfy-3.0 < R6/(R1+ R8) < -0.5.
In one embodiment, a radius of curvature R12 of an image-side surface of the sixth lens and a radius of curvature R13 of an object-side surface of the seventh lens may satisfy 0 < (R12+ R13)/(R12-R13) < 1.0.
In one embodiment, the radius of curvature R14 of the image-side surface of the seventh lens element and the radius of curvature R16 of the image-side surface of the eighth lens element satisfy-2.5 < R14/R16 < -1.5.
In one embodiment, a radius of curvature R17 of the object-side surface of the ninth lens and a radius of curvature R18 of the image-side surface of the ninth lens may satisfy 2.0 < R17/R18 < 3.0.
In one embodiment, a sum Σ CT of center thicknesses on the optical axis of each of the first to ninth lenses and a sum Σ AT of separation distances on the optical axis of any adjacent two lenses of the first to ninth lenses may satisfy 3.5 < Σct/Σ AT < 4.5.
In one embodiment, a distance TTL on the optical axis from the object side surface of the first lens element to the imaging surface of the optical imaging lens and a half ImgH of a diagonal length of the effective pixel area on the imaging surface of the optical imaging lens may satisfy 2.0 < TTL/ImgH < 2.5.
In one embodiment, the radius of curvature R13 of the object-side surface of the seventh lens and the refractive index N7 of the seventh lens may satisfy 1.0mm < R13/N7 < 2.5 mm.
In one embodiment, the refractive index N9 of the ninth lens and the curvature radius R17 of the object side surface of the ninth lens can satisfy 1.0mm-1＜N9/R17＜1.5mm-1。
In one embodiment, the radius of curvature R10 of the image-side surface of the fifth lens and the central thickness CT5 of the fifth lens on the optical axis satisfy-28.0 < R10/CT5 < -23.0.
In one embodiment, the radius of curvature R11 of the object-side surface of the sixth lens and the central thickness CT6 of the sixth lens on the optical axis may satisfy-29.0 < R11/CT6 < -15.0.
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, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, and a ninth lens; any two adjacent lenses in the first lens to the ninth lens have an air space on an optical axis; half of the Semi-FOV of the maximum field angle of the optical imaging lens can meet the condition that the Semi-FOV is more than or equal to 45 degrees; the distance TTL from the object side surface of the first lens to the imaging surface of the optical imaging lens on the optical axis and the half ImgH of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens can meet the condition that the TTL/ImgH is more than 2.0 and less than 2.5.
In one embodiment, the effective focal length f4 of the fourth lens, the effective focal length f5 of the fifth lens, and the effective focal length f8 of the eighth lens may satisfy 2.0 < f5/(f4+ f8) < 4.5.
In one embodiment, the effective focal length f7 of the seventh lens and the effective focal length f1 of the first lens may satisfy 2.0 < f7/f1 < 3.5.
In one embodiment, the effective focal length f9 of the ninth lens and the total effective focal length f of the optical imaging lens can satisfy-1.5 < f9/f < -0.5.
In one embodiment, the radius of curvature R1 of the object-side surface of the first lens, the radius of curvature R6 of the image-side surface of the third lens, and the radius of curvature R8 of the image-side surface of the fourth lens may satisfy-3.0 < R6/(R1+ R8) < -0.5.
In one embodiment, a radius of curvature R12 of an image-side surface of the sixth lens and a radius of curvature R13 of an object-side surface of the seventh lens may satisfy 0 < (R12+ R13)/(R12-R13) < 1.0.
In one embodiment, the radius of curvature R14 of the image-side surface of the seventh lens element and the radius of curvature R16 of the image-side surface of the eighth lens element satisfy-2.5 < R14/R16 < -1.5.
In one embodiment, a radius of curvature R17 of the object-side surface of the ninth lens and a radius of curvature R18 of the image-side surface of the ninth lens may satisfy 2.0 < R17/R18 < 3.0.
In one embodiment, a sum Σ CT of center thicknesses on the optical axis of each of the first to ninth lenses and a sum Σ AT of separation distances on the optical axis of any adjacent two lenses of the first to ninth lenses may satisfy 3.5 < Σct/Σ AT < 4.5.
In one embodiment, the radius of curvature R13 of the object-side surface of the seventh lens and the refractive index N7 of the seventh lens may satisfy 1.0mm < R13/N7 < 2.5 mm.
In one embodiment, the refractive index N9 of the ninth lens and the curvature radius R17 of the object side surface of the ninth lens can satisfy 1.0mm-1＜N9/R17＜1.5mm-1。
In one embodiment, the radius of curvature R10 of the image-side surface of the fifth lens and the central thickness CT5 of the fifth lens on the optical axis satisfy-28.0 < R10/CT5 < -23.0.
In one embodiment, the radius of curvature R11 of the object-side surface of the sixth lens and the central thickness CT6 of the sixth lens on the optical axis satisfy-29.0 < R11/CT6 < -15.0
This application has adopted nine lenses, through the focal power of rational distribution each lens, face type, the center thickness of each lens and the epaxial interval between each lens etc for above-mentioned optical imaging lens has at least one beneficial effect such as wide angle, big light ring. The optical imaging lens with the large aperture has large light incoming quantity, is beneficial to improving the shutter speed, and has good background blurring effect during imaging. The optical imaging lens can obtain better photographing effect when being used for photographing in a dark environment, and can fully show the value of the optical imaging lens
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 2D show an on-axis chromatic aberration curve, an astigmatic curve, a distortion 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 4D show an on-axis chromatic aberration curve, an astigmatic curve, a distortion 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 6D show an on-axis chromatic aberration curve, an astigmatic curve, a distortion 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 8D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the 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 10D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the 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 12D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the 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; fig. 14A to 14D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of an optical imaging lens of embodiment 7;
fig. 15 is a schematic structural view showing an optical imaging lens according to embodiment 8 of the present application; fig. 16A to 16D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a chromatic aberration of magnification curve, respectively, of the optical imaging lens of embodiment 8.
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. The surface of each lens closest to the object is called the object side surface of the lens, and the surface of each lens closest to the imaging surface is called 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.
The optical imaging lens according to an exemplary embodiment of the present application may include, for example, nine lenses having optical powers, i.e., a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, and a ninth lens. The nine lenses are arranged in order from the object side to the image side along the optical axis.
In an exemplary embodiment, any adjacent two lenses among the first to ninth lenses may have an air space therebetween. Each lens is independent, and adjacent lens do not laminate in the active area, is favorable to promoting the equipment performance.
In an exemplary embodiment, the optical imaging lens may further include at least one diaphragm. The stop may be provided at an appropriate position as required, for example, between the third lens and the fourth 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.
In an exemplary embodiment, the first lens has positive power or negative power, the second lens has positive power or negative power, and the first lens and the second lens with power are beneficial to increasing the field angle of the optical imaging lens and simultaneously beneficial to compressing the incidence angle of light rays at the position of the diaphragm, so that pupil aberration is reduced to improve the imaging quality.
In an exemplary embodiment, the third lens has positive or negative power, the fourth lens has positive or negative power, and the third and fourth lenses having power are advantageous for reducing coma and astigmatism of the optical imaging lens.
In an exemplary embodiment, the fifth lens has a positive or negative power, and the sixth lens has a positive or negative power. The fifth lens and the sixth lens with the focal power are beneficial to realizing the compact-structure large-aperture optical imaging lens which has good imaging quality and loose processing characteristics.
In an exemplary embodiment, the seventh lens has a positive or negative power, the eighth lens has a positive or negative power, and the ninth lens has a positive or negative power. By reasonably controlling the focal lengths of the seventh lens, the eighth lens and the ninth lens, the spherical aberration contributions of the three lenses can be in a reasonable range, so that the on-axis field of view can obtain good imaging quality.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression Semi-FOV ≧ 45 °, where Semi-FOV is half of the maximum field angle of the optical imaging lens. By controlling the half field angle of the optical imaging lens to be not less than 45 degrees, the optical imaging lens can be ensured to have wide-angle characteristics. Further, the Semi-FOV may satisfy that the Semi-FOV is not less than 48 °.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 2.0 < f7/f1 < 3.5, where f7 is an effective focal length of the seventh lens and f1 is an effective focal length of the first lens. By controlling the ratio of the effective focal length of the seventh lens to the effective focal length of the first lens to be within the range, the focal power of the seventh lens can be effectively controlled to be within a reasonable interval. The seventh lens bears the focal power required by the optical imaging lens, and the spherical aberration contributed by the seventh lens is in a controllable range, so that the optical lens behind the seventh lens can reasonably correct the negative spherical aberration contributed by the seventh lens, and the image quality of the axial view field of the optical imaging lens is better ensured. Further, f1 and f7 may satisfy 2.1 < f7/f1 < 3.1.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 2.0 < f5/(f4+ f8) < 4.5, where f4 is an effective focal length of the fourth lens, f5 is an effective focal length of the fifth lens, and f8 is an effective focal length of the eighth lens. Satisfying 2.0 < f5/(f4+ f8) < 4.5, the contribution range of the focal power of the three lenses can be reasonably controlled, and the contribution ratio of the positive spherical aberration of the three lenses can be reasonably controlled, so that the negative focal power of the first lens contribution can be balanced. Further, f4, f5 and f8 satisfy 2.01 < f5/(f4+ f8) < 4.30.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression-1.5 < f9/f < -0.5, where f9 is an effective focal length of the ninth lens, and f is a total effective focal length of the optical imaging lens. The negative focal power of the ninth lens can be controlled in a reasonable interval, the contribution range of the focal power can be reasonably controlled, and the contribution rate of the negative spherical aberration can be reasonably controlled, so that the positive focal power in the optical imaging lens can be reasonably balanced. Further, f9 and f can satisfy-1.45 < f9/f < -0.85.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression-3.0 < R6/(R1+ R8) < -0.5, where R1 is a radius of curvature of an object-side surface of the first lens, R6 is a radius of curvature of an image-side surface of the third lens, and R8 is a radius of curvature of an image-side surface of the fourth lens. Satisfy-3.0 < R6/(R1+ R8) < -0.5, can the effectual shape of control first lens, third lens and fourth lens, and then make optical imaging lens have suitable assemblage segment difference, still be favorable to the shaping and the equipment of lens. Furthermore, R1, R6 and R8 satisfy-2.80 < R6/(R1+ R8) < -0.80.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 0 < (R12+ R13)/(R12-R13) < 1.0, where R12 is a radius of curvature of an image-side surface of the sixth lens and R13 is a radius of curvature of an object-side surface of the seventh lens. The numerical value of 0 < (R12+ R13)/(R12-R13) < 1.0 is satisfied, the numerical values of the curvature radius of the image side surface of the sixth lens and the curvature radius of the image object surface of the seventh lens can be controlled, the trend of the aspheric mirror surfaces of the two lenses and the thickness ratio of the lenses can be well controlled, and the coma contribution amount of the two lenses can be controlled within a reasonable range, so that the image quality of an on-axis field and an off-axis field cannot be obviously degraded due to the coma contribution. Further, R12 and R13 may satisfy 0.10 < (R12+ R13)/(R12-R13) < 0.56.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression-2.5 < R14/R16 < -1.5, where R14 is a radius of curvature of an image-side surface of the seventh lens and R16 is a radius of curvature of an image-side surface of the eighth lens. The ratio of the curvature radius of the image side surface of the seventh lens to the curvature radius of the image side surface of the eighth lens is limited within the range, so that the air interval between the seventh lens and the eighth lens can be well controlled, and the surface types of the seventh lens and the eighth lens have certain complementary action; and the air space between the eighth lens and the ninth lens can be controlled, so that the surface shapes of the eighth lens and the ninth lens also have complementary effects. Furthermore, R14 and R16 satisfy-2.30 < R14/R16 < -1.60.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 2.0 < R17/R18 < 3.0, where R17 is a radius of curvature of an object-side surface of the ninth lens and R18 is a radius of curvature of an image-side surface of the ninth lens. By limiting the ratio of the curvature radius of the object side surface of the ninth lens and the curvature radius of the image side surface of the ninth lens to be in the range, the thickness ratio of the ninth lens and the trend of the aspheric mirror surface of the ninth lens can be well controlled, so that the ninth lens is easy to machine and mold. Further, R17 and R18 satisfy 2.18 < R17/R18 < 2.80.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 3.5 < ∑ CT/∑ AT < 4.5, where Σ CT is a sum of central thicknesses of the respective first to ninth lenses on the optical axis, and Σ AT is a sum of separation distances of any adjacent two lenses of the first to ninth lenses on the optical axis. Exemplarily, Σ CT ═ CT1+ CT2+ CT3+ CT4+ CT5+ CT6+ CT7+ CT8+ CT9, where CTq is the central thickness of the q-th lens from the object side on the optical axis, e.g. CT1 is the central thickness of the first lens on the optical axis; Σ AT ═ T12+ T23+ T34+ T45+ T56+ T67+ T78+ T89, where Tnm is the separation distance between the nth lens and the mth lens from the object side end, for example, T12 is the separation distance on the optical axis between the first lens and the second lens. Satisfy 3.5 < ∑ CT/Σ AT < 4.5, can control the air space between all lenses effectively, so that the lenses are arranged uniformly, and further facilitate molding and assembling the lenses. Furthermore, Sigma CT and Sigma AT may satisfy 3.55 < SigmaCT/Sigma AT < 4.30.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 2.0 < TTL/ImgH < 2.5, where TTL is a distance on 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 of the optical imaging lens. By controlling the ratio of the total optical length to the image height within the range, the compact structure of the optical imaging lens can be ensured. Furthermore, TTL and ImgH can satisfy 2.13 < TTL/ImgH < 2.32.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 1.0mm < R13/N7 < 2.5mm, where R13 is a radius of curvature of an object side surface of the seventh lens and N7 is a refractive index of the seventh lens. By controlling the ratio of the curvature radius of the object side surface of the seventh lens to the refractive index of the seventh lens within the range, the degree of curvature of the seventh lens can be effectively controlled, so that the seventh lens is easy to machine and form, and the power contribution value of the seventh lens can be controlled. Furthermore, R13 and N7 satisfy 1.20mm < R13/N7 < 2.10 mm.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression of 1.0mm-1＜N9/R17＜1.5mm-1Where N9 is a refractive index of the ninth lens, and R17 is a radius of curvature of an object side surface of the ninth lens. By controlling the ratio of the refractive index of the ninth lens to the curvature radius of the object side surface of the ninth lens within the range, the bending degree of the ninth lens can be effectively controlled, so that the ninth lens is easy to process, and meanwhile, the power contribution value of the ninth lens can be controlled, so that the function of correcting aberration is achieved.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression-28.0 < R10/CT5 < -23.0, where R10 is a radius of curvature of an image-side surface of the fifth lens and CT5 is a center thickness of the fifth lens on an optical axis. The optical imaging lens meets the requirement that R10/CT5 is less than 23.0 which is less than 28.0, can reasonably control the shape of the fifth lens, so that the fifth lens is easy to process, and simultaneously controls the spherical aberration contribution amount of the fifth lens within a reasonable level, so that the on-axis field of view of the optical imaging lens obtains good imaging quality. Furthermore, R10 and CT5 satisfy-27.40 < R10/CT5 < -23.85.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression-29.0 < R11/CT6 < -15.0, where R11 is a radius of curvature of an object-side surface of the sixth lens and CT6 is a center thickness of the sixth lens on an optical axis. The optical lens meets the requirement that R11/CT6 is less than-15.0, the shape of the sixth lens can be reasonably controlled, so that the sixth lens is easy to machine and form, and meanwhile, the spherical aberration contribution amount of the sixth lens is controlled within a reasonable level, so that the on-axis field of view obtains good imaging quality. Furthermore, R11 and CT6 satisfy-28.55 < R11/CT6 < -15.25.
The optical imaging lens according to the above-described embodiment of the present application may employ a plurality of lenses, for example, nine lenses as described above. By reasonably distributing the focal power, the surface type, the central thickness of each lens, the on-axis distance between each lens and the like, the volume of the optical imaging lens can be effectively reduced, the sensitivity of the optical imaging lens can be reduced, and the processability of the optical imaging lens can be improved, so that the optical imaging lens is more beneficial to production and processing and can be suitable for portable electronic products. Simultaneously, the optical imaging lens of this application still possesses excellent optical properties such as wide angle.
The wide-angle optical imaging lens can be used for a multi-camera module, and has the unique characteristics of large lens visual angle and wide visual field, so that the range of the scenery observed from a certain viewpoint is much larger than that of the scenery observed by human eyes at the same viewpoint. And the lens scene is deep and long, and can show a quite large clear range. The lens can emphasize the perspective effect of the picture, is good at exaggerating the prospect and expressing the sense of distance of the scenery, is beneficial to enhancing the infectivity of the picture, and is widely used for shooting large-scene landscape photographic works. With the continuous development of portable electronic products such as smart phones, higher requirements are put forward on imaging lenses, and particularly under the conditions of insufficient light (such as overcast and rainy days, dusk and the like) and hand trembling, the imaging lenses with the F number of less than 2.3 can meet the higher-order imaging requirements.
In the embodiment of the present application, at least one of the mirror surfaces of each lens is an aspherical mirror surface, that is, at least one of the object-side surface of the first lens to the image-side surface of the ninth lens is an aspherical mirror surface. 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 during imaging can be eliminated as much as possible, thereby improving the 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, the fifth lens, the sixth lens, the seventh lens, the eighth lens, and the ninth lens is an aspherical mirror surface. Optionally, each of the object-side surface and the image-side surface of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, the seventh lens, the eighth lens, and the ninth lens is an aspheric mirror surface.
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 nine lenses are exemplified in the embodiment, the optical imaging lens is not limited to include nine 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 2D. 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 first lens E1, a second lens E2, a third lens E3, a stop STO, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an eighth lens E8, a ninth lens E9, and a filter E10.
The first lens element E1 has negative power, and has a concave object-side surface S1 and a concave image-side surface S2. The second lens element E2 has positive power, and has a concave object-side surface S3 and a convex 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 positive power, and has a concave object-side surface S11 and a convex image-side surface S12. The seventh lens element E7 has negative power, and has a convex object-side surface S13 and a concave image-side surface S14. The eighth lens element E8 has positive power, and has a concave object-side surface S15 and a convex image-side surface S16. The ninth lens element has negative power, and has a convex object-side surface S17 and a concave image-side surface S18. Filter E10 has an object side S19 and an image side S20. The optical imaging lens has an imaging surface S21, and light from the object passes through the respective surfaces S1 to S20 in order and is finally imaged on the imaging surface S21.
Table 1 shows a basic parameter table of the optical imaging lens of embodiment 1, in which the units of the radius of curvature, the thickness/distance, and the focal length are all millimeters (mm).
TABLE 1
In embodiment 1, the value of the total effective focal length f of the optical imaging lens is 1.40mm, the value of the f-number Fno of the optical imaging lens is 2.25, the value of the on-axis distance TTL from the object side surface S1 to the imaging surface S21 of the first lens E1 is 4.20mm, the value of the half ImgH of the diagonal length of the effective pixel region on the imaging surface S21 is 1.81mm, and the value of the half semifov of the maximum angle of view-FOV is 57.0 °.
In embodiment 1, the object-side surface and the image-side surface of any one of the first lens E1 to the ninth lens E9 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. Table 2 below shows the high-order term coefficients A that can be used for the aspherical mirror surfaces S1 to S18 in example 14、A6、A8、A10、A12、A14、A16、A18And A20。
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 7.3024E-01 | -9.9770E-01 | 1.4073E+00 | -1.6498E+00 | 1.6910E+00 | -1.4605E+00 | 9.0775E-01 | -3.3512E-01 | 5.3633E-02 |
| S2 | 7.0823E-01 | -1.6160E+00 | 1.2564E+01 | -7.0816E+01 | 2.4707E+02 | -5.1774E+02 | 6.3503E+02 | -4.2308E+02 | 1.1865E+02 |
| S3 | -1.4495E-01 | 2.0702E+00 | -1.1530E+01 | 5.4888E+01 | -1.8739E+02 | 4.0483E+02 | -5.2167E+02 | 3.6632E+02 | -1.0818E+02 |
| S4 | 4.0684E-01 | 1.8404E+00 | -1.7093E+01 | 1.0917E+02 | -4.2893E+02 | 7.8251E+02 | 2.7189E+02 | -3.1305E+03 | 3.1646E+03 |
| S5 | 3.8189E-01 | 2.0911E+00 | -7.6165E+01 | 1.0041E+03 | -7.9312E+03 | 3.9127E+04 | -1.1684E+05 | 1.9148E+05 | -1.3179E+05 |
| S6 | 4.2037E-01 | -1.2652E+01 | 3.5112E+02 | -6.6061E+03 | 7.9735E+04 | -6.0387E+05 | 2.7802E+06 | -7.1021E+06 | 7.7074E+06 |
| S7 | -4.8612E-02 | 7.8191E-01 | -6.4660E+01 | 1.1494E+03 | -1.1161E+04 | 6.6489E+04 | -2.3774E+05 | 4.6341E+05 | -3.7326E+05 |
| S8 | 4.0894E-01 | -5.0253E+00 | 2.8323E+01 | -8.1637E+01 | 2.9913E+01 | 6.4237E+02 | -2.3019E+03 | 3.3879E+03 | -1.8634E+03 |
| S9 | 5.2497E-01 | -6.3824E+00 | 3.8939E+01 | -1.7732E+02 | 7.4597E+02 | -2.6409E+03 | 6.2764E+03 | -8.4319E+03 | 4.7816E+03 |
| S10 | -9.8653E-02 | -1.9742E+00 | 1.4333E+01 | -9.4845E+01 | 5.4001E+02 | -1.9515E+03 | 4.0615E+03 | -4.5251E+03 | 2.1139E+03 |
| S11 | 2.6011E-13 | -1.1985E-11 | 1.8254E-10 | -1.4071E-09 | 6.2490E-09 | -1.6704E-08 | 2.6558E-08 | -2.3140E-08 | 8.5072E-09 |
| S12 | 1.9840E-13 | -6.1369E-12 | 7.4971E-11 | -4.9016E-10 | 1.9105E-09 | -4.5884E-09 | 6.6642E-09 | -5.3664E-09 | 1.8376E-09 |
| S13 | -5.2516E-01 | 1.7649E+00 | -1.9201E+01 | 1.1358E+02 | -4.0045E+02 | 9.1812E+02 | -1.3462E+03 | 1.1223E+03 | -3.9637E+02 |
| S14 | -3.0022E-01 | -6.2223E-01 | 5.4178E+00 | -2.2729E+01 | 5.9870E+01 | -9.7197E+01 | 9.4374E+01 | -5.0584E+01 | 1.1573E+01 |
| S15 | 2.3991E-01 | -1.9098E+00 | 1.1081E+01 | -3.3684E+01 | 5.6767E+01 | -5.3730E+01 | 2.7000E+01 | -5.8057E+00 | 1.2286E-01 |
| S16 | 8.1419E-01 | -1.9612E+00 | 2.5923E+00 | 5.2648E+00 | -2.2298E+01 | 3.1710E+01 | -2.2952E+01 | 8.5318E+00 | -1.3025E+00 |
| S17 | -1.4030E+00 | 2.4007E+00 | -8.2702E+00 | 2.4251E+01 | -4.6542E+01 | 5.6210E+01 | -4.1155E+01 | 1.6680E+01 | -2.8676E+00 |
| S18 | -4.8675E-01 | 5.1935E-01 | -3.2149E-01 | 3.5050E-02 | 1.0855E-01 | -9.1249E-02 | 3.4683E-02 | -6.6713E-03 | 5.2563E-04 |
TABLE 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 distortion curve of the optical imaging lens of embodiment 1, which represents distortion magnitude values corresponding to different image heights. Fig. 2D 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 2D, 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 4D. 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 first lens E1, a second lens E2, a third lens E3, a stop STO, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an eighth lens E8, a ninth lens E9, and a filter E10.
The first lens element E1 has negative power, and has a concave object-side surface S1 and a concave image-side surface S2. The second lens element E2 has positive power, and has a concave object-side surface S3 and a convex 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 convex 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 negative power, and has a convex object-side surface S13 and a concave image-side surface S14. The eighth lens element E8 has positive power, and has a convex object-side surface S15 and a convex image-side surface S16. The ninth lens element has negative power, and has a convex object-side surface S17 and a concave image-side surface S18. Filter E10 has an object side S19 and an image side S20. The optical imaging lens has an imaging surface S21, and light from the object passes through the respective surfaces S1 to S20 in order and is finally imaged on the imaging surface S21.
In embodiment 2, the value of the total effective focal length f of the optical imaging lens is 1.27mm, the value of the f-number Fno of the optical imaging lens is 2.25, the value of the on-axis distance TTL from the object side surface S1 to the imaging surface S21 of the first lens E1 is 4.20mm, the value of the half ImgH of the diagonal length of the effective pixel region on the imaging surface S21 is 1.81mm, and the value of the half semifov of the maximum angle of view-FOV is 60.2 °.
Table 3 shows a basic parameter table of the optical imaging lens of embodiment 2, in which the units of the radius of curvature, the thickness/distance, and the focal length are all millimeters (mm). Table 4 shows high-order term coefficients that can be used for each aspherical mirror surface in example 2, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above.
TABLE 3
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 8.3003E-01 | -1.4867E+00 | 2.8114E+00 | -4.2942E+00 | 4.9172E+00 | -3.9491E+00 | 2.0650E+00 | -6.2599E-01 | 8.3181E-02 |
| S2 | 8.2327E-01 | -1.1201E+00 | 2.5415E+00 | -7.8470E-01 | -2.0768E+01 | 8.5572E+01 | -1.5232E+02 | 1.2020E+02 | -3.2898E+01 |
| S3 | -1.0639E-01 | 1.6678E+00 | -7.3184E+00 | 2.7656E+01 | -7.8609E+01 | 1.3633E+02 | -1.2459E+02 | 4.2855E+01 | 3.8385E+00 |
| S4 | 4.7148E-01 | 6.4661E-01 | 2.4459E+00 | -9.7956E+01 | 9.6685E+02 | -5.0892E+03 | 1.5168E+04 | -2.3978E+04 | 1.5487E+04 |
| S5 | 5.3083E-01 | -4.5795E-01 | -2.1618E+01 | 2.4953E+02 | -1.3218E+03 | 2.4486E+03 | 7.5110E+03 | -4.3772E+04 | 5.7942E+04 |
| S6 | 4.4564E-01 | -1.0386E+01 | 3.3666E+02 | -7.5099E+03 | 1.0910E+05 | -1.0009E+06 | 5.5908E+06 | -1.7328E+07 | 2.2798E+07 |
| S7 | 5.1668E-03 | -1.5060E+00 | 5.0512E+00 | 2.8728E+02 | -6.0749E+03 | 6.2212E+04 | -3.5232E+05 | 1.0393E+06 | -1.2394E+06 |
| S8 | 4.0600E-01 | -5.2189E+00 | 4.4129E+01 | -2.4601E+02 | 9.1178E+02 | -1.9588E+03 | 1.4098E+03 | 1.9066E+03 | -2.7865E+03 |
| S9 | 4.3231E-01 | -5.5805E+00 | 3.7617E+01 | -1.7575E+02 | 6.6227E+02 | -2.0285E+03 | 4.4406E+03 | -5.9169E+03 | 3.4864E+03 |
| S10 | -1.7209E-01 | -3.4972E+00 | 3.5063E+01 | -2.6496E+02 | 1.4253E+03 | -4.9202E+03 | 1.0286E+04 | -1.1933E+04 | 5.9081E+03 |
| S11 | 3.3612E-13 | -1.2368E-11 | 1.7213E-10 | -1.2898E-09 | 5.7312E-09 | -1.5499E-08 | 2.4994E-08 | -2.2071E-08 | 8.2106E-09 |
| S12 | -2.6321E-13 | 6.5831E-12 | -6.3399E-11 | 3.0692E-10 | -8.0349E-10 | 1.0856E-09 | -5.2347E-10 | -2.8450E-10 | 2.9416E-10 |
| S13 | -4.2929E-01 | -4.0584E-01 | -2.2702E+00 | 2.9812E+01 | -1.2792E+02 | 3.4909E+02 | -6.4229E+02 | 6.7543E+02 | -2.9176E+02 |
| S14 | -4.0255E-01 | 8.6856E-01 | -4.5031E+00 | 1.2759E+01 | -1.2316E+01 | -1.3619E+01 | 4.3159E+01 | -3.7936E+01 | 1.1803E+01 |
| S15 | -1.3833E-02 | 1.7811E+00 | -1.0303E+01 | 3.3095E+01 | -6.9247E+01 | 9.4940E+01 | -8.0748E+01 | 3.8168E+01 | -7.6164E+00 |
| S16 | 7.9675E-01 | -1.0384E+00 | -3.0050E+00 | 2.5272E+01 | -6.8221E+01 | 9.7073E+01 | -7.7757E+01 | 3.3165E+01 | -5.8674E+00 |
| S17 | -1.3281E+00 | 1.9277E+00 | -8.1310E+00 | 2.8146E+01 | -5.7344E+01 | 6.9066E+01 | -4.8497E+01 | 1.8371E+01 | -2.9052E+00 |
| S18 | -5.9248E-01 | 6.5000E-01 | -2.7872E-01 | -2.5018E-01 | 4.5501E-01 | -3.1112E-01 | 1.1489E-01 | -2.2571E-02 | 1.8521E-03 |
TABLE 4
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 distortion curve of the optical imaging lens of embodiment 2, which represents distortion magnitude values corresponding to different image heights. Fig. 4D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 2, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 4A to 4D, 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 6D. 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 first lens E1, a second lens E2, a third lens E3, a stop STO, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an eighth lens E8, a ninth lens E9, and a filter E10.
The first lens element E1 has negative power, and has a concave object-side surface S1 and a concave image-side surface S2. The second lens element E2 has positive power, and has a convex object-side surface S3 and a convex 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 convex object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has positive power, and has a concave object-side surface S11 and a convex image-side surface S12. The seventh lens element E7 has negative power, and has a convex object-side surface S13 and a concave image-side surface S14. The eighth lens element E8 has positive power, and has a convex object-side surface S15 and a convex image-side surface S16. The ninth lens element has negative power, and has a convex object-side surface S17 and a concave image-side surface S18. Filter E10 has an object side S19 and an image side S20. The optical imaging lens has an imaging surface S21, and light from the object passes through the respective surfaces S1 to S20 in order and is finally imaged on the imaging surface S21.
In embodiment 3, the value of the total effective focal length f of the optical imaging lens is 1.63mm, the value of the f-number Fno of the optical imaging lens is 2.25, the value of the on-axis distance TTL from the object side surface S1 to the imaging plane S21 of the first lens E1 is 4.20mm, the value of the half ImgH of the diagonal length of the effective pixel region on the imaging plane S21 is 1.82mm, and the value of the half Semi-FOV of the maximum angle of view is 48.0 °.
Table 5 shows a basic parameter table of the optical imaging lens of embodiment 3, in which the units of the radius of curvature, the thickness/distance, and the focal length are all millimeters (mm). Table 6 shows high-order term coefficients that can be used for each aspherical mirror surface in example 3, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above.
TABLE 5
TABLE 6
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 distortion curve of the optical imaging lens of embodiment 3, which represents distortion magnitude values corresponding to different image heights. Fig. 6D 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 6D, 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 8D. 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 first lens E1, a second lens E2, a third lens E3, a stop STO, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an eighth lens E8, a ninth lens E9, and a filter E10.
The first lens element E1 has negative power, and has a concave object-side surface S1 and a concave image-side surface S2. The second lens element E2 has positive power, and has a convex object-side surface S3 and a convex 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 convex 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 negative power, and has a convex object-side surface S13 and a concave image-side surface S14. The eighth lens element E8 has positive power, and has a convex object-side surface S15 and a convex image-side surface S16. The ninth lens element has negative power, and has a convex object-side surface S17 and a concave image-side surface S18. Filter E10 has an object side S19 and an image side S20. The optical imaging lens has an imaging surface S21, and light from the object passes through the respective surfaces S1 to S20 in order and is finally imaged on the imaging surface S21.
In embodiment 4, the value of the total effective focal length f of the optical imaging lens is 1.55mm, the value of the f-number Fno of the optical imaging lens is 2.25, the value of the on-axis distance TTL from the object side surface S1 to the imaging surface S21 of the first lens E1 is 4.20mm, the value of the half ImgH of the diagonal length of the effective pixel region on the imaging surface S21 is 1.81mm, and the value of the half Semi-FOV of the maximum angle of view is 49.7 °.
Table 7 shows a basic parameter table of the optical imaging lens of embodiment 4, in which the units of the radius of curvature, the thickness/distance, and the focal length are all millimeters (mm). Table 8 shows high-order term coefficients that can be used for each aspherical mirror surface in example 4, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above.
TABLE 7
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 8.2632E-01 | -1.4067E+00 | 2.7125E+00 | -4.5972E+00 | 6.1120E+00 | -5.6956E+00 | 3.4088E+00 | -1.1687E+00 | 1.7376E-01 |
| S2 | 5.9069E-01 | -2.3124E-01 | 2.2643E-01 | -2.5073E+00 | 4.9979E+00 | 4.8149E+00 | -2.1423E+01 | 1.7014E+01 | -3.0212E+00 |
| S3 | -2.6747E-01 | 3.0886E+00 | -1.0427E+01 | 1.3697E+01 | 2.1145E+01 | -1.2135E+02 | 2.2336E+02 | -2.0312E+02 | 7.6206E+01 |
| S4 | 4.7374E-01 | 2.4676E+00 | -2.8521E+00 | -1.3548E+02 | 1.3329E+03 | -6.5610E+03 | 1.8533E+04 | -2.8273E+04 | 1.7899E+04 |
| S5 | 3.8941E-01 | 1.8363E+00 | -4.7490E+01 | 4.7767E+02 | -3.1438E+03 | 1.3084E+04 | -3.2141E+04 | 4.0982E+04 | -1.9966E+04 |
| S6 | 2.8224E-01 | -3.4288E+00 | 7.6699E+01 | -1.2881E+03 | 1.3995E+04 | -9.6619E+04 | 4.1496E+05 | -1.0105E+06 | 1.0637E+06 |
| S7 | 1.4287E-02 | -2.6895E+00 | 6.5442E+01 | -1.1726E+03 | 1.2762E+04 | -8.4349E+04 | 3.3339E+05 | -7.2304E+05 | 6.5948E+05 |
| S8 | 3.5893E-01 | -3.7799E+00 | 2.1335E+01 | -7.5411E+01 | 1.3622E+02 | 1.3328E+02 | -1.2675E+03 | 2.3513E+03 | -1.4484E+03 |
| S9 | 4.1803E-01 | -5.0488E+00 | 3.1256E+01 | -1.6629E+02 | 7.7244E+02 | -2.6285E+03 | 5.7981E+03 | -7.4398E+03 | 4.1803E+03 |
| S10 | -1.3707E-01 | -1.8118E+00 | 1.3287E+01 | -9.5157E+01 | 5.2023E+02 | -1.7720E+03 | 3.6271E+03 | -4.1854E+03 | 2.1018E+03 |
| S11 | 5.3417E-13 | -2.3223E-11 | 3.7430E-10 | -3.1724E-09 | 1.5803E-08 | -4.7964E-08 | 8.7320E-08 | -8.7681E-08 | 3.7337E-08 |
| S12 | 1.2541E-13 | -6.6412E-13 | -3.8766E-11 | 6.2610E-10 | -4.1282E-09 | 1.4435E-08 | -2.8101E-08 | 2.8812E-08 | -1.2148E-08 |
| S13 | -2.9818E-01 | -7.8207E-01 | 4.6267E+00 | -2.5508E+01 | 1.0402E+02 | -2.6706E+02 | 4.3212E+02 | -4.3081E+02 | 2.0230E+02 |
| S14 | -6.3350E-02 | -2.1090E+00 | 1.2832E+01 | -5.0129E+01 | 1.2900E+02 | -2.0960E+02 | 2.0458E+02 | -1.0910E+02 | 2.4393E+01 |
| S15 | 4.9857E-01 | -3.4938E+00 | 1.6405E+01 | -4.9598E+01 | 9.6716E+01 | -1.2145E+02 | 9.5596E+01 | -4.3013E+01 | 8.4152E+00 |
| S16 | 1.1962E+00 | -5.2996E+00 | 2.0965E+01 | -5.5278E+01 | 9.6886E+01 | -1.1130E+02 | 7.9858E+01 | -3.2162E+01 | 5.5109E+00 |
| S17 | -1.5494E+00 | 1.5271E+00 | 2.9962E+00 | -1.5796E+01 | 2.9963E+01 | -3.1479E+01 | 1.9162E+01 | -6.2998E+00 | 8.6207E-01 |
| S18 | -8.0042E-01 | 1.8401E+00 | -2.9549E+00 | 3.2080E+00 | -2.3505E+00 | 1.1449E+00 | -3.5495E-01 | 6.3275E-02 | -4.9267E-03 |
TABLE 8
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 distortion curve of the optical imaging lens of embodiment 4, which represents distortion magnitude values corresponding to different image heights. Fig. 8D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 4, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 8A to 8D, 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 10D. 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 first lens E1, a second lens E2, a third lens E3, a stop STO, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an eighth lens E8, a ninth lens E9, and a filter E10.
The first lens element E1 has negative power, and has a concave object-side surface S1 and a concave image-side surface S2. The second lens element E2 has positive 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 convex image-side surface S12. The seventh lens element E7 has negative power, and has a convex object-side surface S13 and a concave image-side surface S14. The eighth lens element E8 has positive power, and has a concave object-side surface S15 and a convex image-side surface S16. The ninth lens element has negative power, and has a convex object-side surface S17 and a concave image-side surface S18. Filter E10 has an object side S19 and an image side S20. The optical imaging lens has an imaging surface S21, and light from the object passes through the respective surfaces S1 to S20 in order and is finally imaged on the imaging surface S21.
In embodiment 5, the value of the total effective focal length f of the optical imaging lens is 1.43mm, the value of the f-number Fno of the optical imaging lens is 2.25, the value of the on-axis distance TTL from the object side surface S1 to the imaging plane S21 of the first lens E1 is 4.20mm, the value of the half ImgH of the diagonal length of the effective pixel region on the imaging plane S21 is 1.95mm, and the value of the half semifov of the maximum angle of view is 58.0 °.
Table 9 shows a basic parameter table of the optical imaging lens of embodiment 5, in which the units of the radius of curvature, the thickness/distance, and the focal length are all millimeters (mm). Table 10 shows high-order term coefficients that can be used for each aspherical mirror surface in example 5, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above.
TABLE 9
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 9.7187E-01 | -1.9169E+00 | 3.7462E+00 | -5.6358E+00 | 6.1159E+00 | -4.5211E+00 | 2.1343E+00 | -5.7583E-01 | 6.7139E-02 |
| S2 | 8.9397E-01 | -9.0272E-01 | -3.5470E+00 | 3.3284E+01 | -1.2877E+02 | 2.8800E+02 | -3.7839E+02 | 2.6630E+02 | -7.6760E+01 |
| S3 | 7.0175E-02 | 8.0672E-01 | -4.4627E+00 | 1.4174E+01 | -3.1299E+01 | 5.1181E+01 | -5.9207E+01 | 4.0138E+01 | -1.1139E+01 |
| S4 | 8.4104E-01 | -5.3926E-01 | 9.4627E+00 | -1.6367E+02 | 1.3943E+03 | -6.8096E+03 | 1.9634E+04 | -3.0833E+04 | 2.0006E+04 |
| S5 | 6.8987E-01 | -2.4206E+00 | -4.3746E+00 | 8.9948E+01 | -6.0979E+02 | 2.4506E+03 | -5.8084E+03 | 6.6932E+03 | -2.2901E+03 |
| S6 | 4.6453E-01 | -3.0210E+00 | 1.7879E+01 | -1.1507E+02 | 7.8882E+02 | -4.1475E+03 | 1.5477E+04 | -3.7357E+04 | 4.6592E+04 |
| S7 | 1.2998E-01 | -4.9118E+00 | 1.2215E+02 | -2.3728E+03 | 2.8921E+04 | -2.1930E+05 | 1.0062E+06 | -2.5558E+06 | 2.7561E+06 |
| S8 | 3.7815E-01 | -4.8279E+00 | 3.7533E+01 | -1.9979E+02 | 7.5159E+02 | -1.8704E+03 | 2.8373E+03 | -2.3570E+03 | 8.2154E+02 |
| S9 | 4.1783E-01 | -7.0153E+00 | 4.8889E+01 | -2.5110E+02 | 9.6575E+02 | -2.5923E+03 | 4.5002E+03 | -4.5999E+03 | 2.1269E+03 |
| S10 | -2.5759E-02 | -3.8461E+00 | 2.3399E+01 | -1.1246E+02 | 4.4119E+02 | -1.2282E+03 | 2.2034E+03 | -2.3116E+03 | 1.0837E+03 |
| S11 | 5.4271E-14 | -2.5904E-12 | 4.8487E-11 | -5.2835E-10 | 3.3183E-09 | -1.2099E-08 | 2.5278E-08 | -2.8080E-08 | 1.2860E-08 |
| S12 | 6.2551E-14 | -3.2126E-12 | 5.9031E-11 | -5.2675E-10 | 2.6197E-09 | -7.6910E-09 | 1.3314E-08 | -1.2615E-08 | 5.0587E-09 |
| S13 | -1.0501E-01 | -2.9678E+00 | 1.3099E+01 | -4.4691E+01 | 1.2092E+02 | -2.2676E+02 | 2.7540E+02 | -2.1595E+02 | 8.8436E+01 |
| S14 | 1.5888E-01 | -4.3425E+00 | 1.9916E+01 | -5.8058E+01 | 1.1650E+02 | -1.5752E+02 | 1.3589E+02 | -6.7454E+01 | 1.4670E+01 |
| S15 | 6.1936E-01 | -3.9525E+00 | 1.5728E+01 | -3.6912E+01 | 5.2419E+01 | -4.4120E+01 | 1.9988E+01 | -3.4256E+00 | -2.4273E-01 |
| S16 | 1.0476E+00 | -4.8427E+00 | 1.9710E+01 | -5.2317E+01 | 9.4488E+01 | -1.1373E+02 | 8.5875E+01 | -3.6358E+01 | 6.5364E+00 |
| S17 | -1.7815E+00 | 1.8453E+00 | 2.6537E+00 | -1.3733E+01 | 2.2086E+01 | -1.6554E+01 | 3.9797E+00 | 1.7304E+00 | -8.7689E-01 |
| S18 | -9.3354E-01 | 2.1772E+00 | -3.5137E+00 | 3.8945E+00 | -2.9648E+00 | 1.5227E+00 | -5.0380E-01 | 9.6840E-02 | -8.2045E-03 |
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 distortion curve of the optical imaging lens of embodiment 5, which represents distortion magnitude values corresponding to different image heights. Fig. 10D 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 10D, 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 12D. 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 first lens E1, a second lens E2, a third lens E3, a stop STO, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an eighth lens E8, a ninth lens E9, and a filter E10.
The first lens element E1 has negative power, and has a concave object-side surface S1 and a concave image-side surface S2. The second lens element E2 has positive 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 convex object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has positive power, and has a concave object-side surface S11 and a convex image-side surface S12. The seventh lens element E7 has negative power, and has a convex object-side surface S13 and a concave image-side surface S14. The eighth lens element E8 has positive power, and has a concave object-side surface S15 and a convex image-side surface S16. The ninth lens element has negative power, and has a convex object-side surface S17 and a concave image-side surface S18. Filter E10 has an object side S19 and an image side S20. The optical imaging lens has an imaging surface S21, and light from the object passes through the respective surfaces S1 to S20 in order and is finally imaged on the imaging surface S21.
In embodiment 6, the value of the total effective focal length f of the optical imaging lens is 1.39mm, the value of the f-number Fno of the optical imaging lens is 2.25, the value of the on-axis distance TTL from the object side surface S1 to the imaging plane S21 of the first lens E1 is 4.20mm, the value of the half ImgH of the diagonal length of the effective pixel region on the imaging plane S21 is 1.81mm, and the value of the half semifov of the maximum angle of view-FOV is 56.4 °.
Table 11 shows a basic parameter table of the optical imaging lens of embodiment 6, in which the units of the radius of curvature, the thickness/distance, and the focal length are all millimeters (mm). Table 12 shows high-order term coefficients that can be used for each aspherical mirror surface in example 6, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above.
TABLE 11
TABLE 12
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 distortion curve of the optical imaging lens of embodiment 6, which represents distortion magnitude values corresponding to different image heights. Fig. 12D 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 surface after light passes through the lens. As can be seen from fig. 12A to 12D, 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 14D. 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 first lens E1, a second lens E2, a third lens E3, a stop STO, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an eighth lens E8, a ninth lens E9, and a filter E10.
The first lens element E1 has negative power, and has a concave 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 convex object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has positive power, and has a concave object-side surface S11 and a convex image-side surface S12. The seventh lens element E7 has negative power, and has a convex object-side surface S13 and a concave image-side surface S14. The eighth lens element E8 has positive power, and has a concave object-side surface S15 and a convex image-side surface S16. The ninth lens element has negative power, and has a convex object-side surface S17 and a concave image-side surface S18. Filter E10 has an object side S19 and an image side S20. The optical imaging lens has an imaging surface S21, and light from the object passes through the respective surfaces S1 to S20 in order and is finally imaged on the imaging surface S21.
In embodiment 7, the value of the total effective focal length f of the optical imaging lens is 1.18mm, the value of the f-number Fno of the optical imaging lens is 2.25, the value of the on-axis distance TTL from the object side surface S1 to the imaging plane S21 of the first lens E1 is 4.20mm, the value of the half ImgH of the diagonal length of the effective pixel region on the imaging plane S21 is 1.81mm, and the value of the half Semi-FOV of the maximum angle of view is 64.6 °.
Table 13 shows a basic parameter table of the optical imaging lens of embodiment 7, in which the units of the radius of curvature, the thickness/distance, and the focal length are all millimeters (mm). Table 14 shows high-order term coefficients that can be used for each aspherical mirror surface in example 7, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above.
Watch 13
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 9.9895E-01 | -2.1306E+00 | 4.3653E+00 | -6.8529E+00 | 7.6728E+00 | -5.8012E+00 | 2.7846E+00 | -7.6236E-01 | 9.0600E-02 |
| S2 | 1.1853E+00 | -4.1800E+00 | 2.1299E+01 | -7.4821E+01 | 1.4753E+02 | -1.0119E+02 | -1.3198E+02 | 2.6152E+02 | -1.2102E+02 |
| S3 | 2.9682E-01 | -1.3819E-01 | 3.5084E-01 | -1.0469E+01 | 6.1247E+01 | -1.7342E+02 | 2.6064E+02 | -1.9435E+02 | 5.3645E+01 |
| S4 | 1.0628E+00 | -5.7785E+00 | 1.2027E+02 | -1.7035E+03 | 1.4499E+04 | -7.5130E+04 | 2.3279E+05 | -3.9394E+05 | 2.7811E+05 |
| S5 | 6.5972E-01 | -5.4313E-01 | -4.9558E+01 | 7.8476E+02 | -6.6817E+03 | 3.4616E+04 | -1.0794E+05 | 1.8399E+05 | -1.3074E+05 |
| S6 | 6.9508E-01 | -1.3353E+01 | 4.0783E+02 | -8.1552E+03 | 1.0163E+05 | -7.8764E+05 | 3.6840E+06 | -9.5248E+06 | 1.0484E+07 |
| S7 | 1.0182E-01 | -7.8660E-01 | -5.9085E+00 | 2.5812E+02 | -6.8814E+03 | 9.6683E+04 | -7.1698E+05 | 2.6363E+06 | -3.7575E+06 |
| S8 | 4.3031E-01 | -8.0015E+00 | 1.1569E+02 | -1.1835E+03 | 8.3989E+03 | -3.8831E+04 | 1.1007E+05 | -1.7283E+05 | 1.1475E+05 |
| S9 | 3.0457E-01 | -5.5541E+00 | 3.3441E+01 | -1.2220E+02 | 2.7915E+02 | -3.5434E+02 | 1.1739E+02 | 2.1429E+02 | -1.7519E+02 |
| S10 | -5.4050E-02 | -3.1713E+00 | 8.3169E+00 | 3.8516E+00 | -7.8829E+01 | 2.0120E+02 | -1.6896E+02 | -1.1622E+02 | 2.0547E+02 |
| S11 | -6.5651E-02 | 3.1582E-01 | -3.5151E+00 | 2.5284E+01 | -1.0412E+02 | 2.3590E+02 | -2.6610E+02 | 9.2667E+01 | 3.2620E+01 |
| S12 | 4.0898E-02 | -9.1636E-01 | 9.8295E+00 | -6.6762E+01 | 2.7898E+02 | -7.1145E+02 | 1.0807E+03 | -8.9961E+02 | 3.1563E+02 |
| S13 | -1.6457E-01 | -2.1063E+00 | 6.9970E+00 | -1.8750E+01 | 3.0282E+01 | 2.9418E+01 | -2.1632E+02 | 3.1418E+02 | -1.4743E+02 |
| S14 | 3.8591E-02 | -3.2527E+00 | 1.5033E+01 | -4.5453E+01 | 9.8356E+01 | -1.4472E+02 | 1.3416E+02 | -7.0071E+01 | 1.5682E+01 |
| S15 | 6.9382E-01 | -4.6501E+00 | 1.9177E+01 | -4.8786E+01 | 7.8990E+01 | -8.1570E+01 | 5.1969E+01 | -1.8553E+01 | 2.8014E+00 |
| S16 | 1.0510E+00 | -4.5135E+00 | 1.6408E+01 | -3.3083E+01 | 3.8434E+01 | -2.5444E+01 | 8.5671E+00 | -8.3994E-01 | -1.4977E-01 |
| S17 | -1.6134E+00 | 9.8524E-01 | 4.8840E+00 | -1.7042E+01 | 2.5248E+01 | -1.9732E+01 | 7.8853E+00 | -1.2115E+00 | -3.5846E-02 |
| S18 | -8.8089E-01 | 2.0908E+00 | -3.4555E+00 | 3.8790E+00 | -2.9541E+00 | 1.5031E+00 | -4.8898E-01 | 9.1904E-02 | -7.5836E-03 |
TABLE 14
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 distortion curve of the optical imaging lens of embodiment 7, which represents distortion magnitude values corresponding to different image heights. Fig. 14D 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 14D, the optical imaging lens according to embodiment 7 can achieve good imaging quality.
Example 8
An optical imaging lens according to embodiment 8 of the present application is described below with reference to fig. 15 to 16D. Fig. 15 shows a schematic structural diagram of an optical imaging lens according to embodiment 8 of the present application.
As shown in fig. 15, the optical imaging lens, in order from an object side to an image side along an optical axis, comprises: a first lens E1, a second lens E2, a third lens E3, a stop STO, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an eighth lens E8, a ninth lens E9, and a filter E10.
The first lens element E1 has negative power, and has a concave object-side surface S1 and a concave image-side surface S2. The second lens element E2 has positive power, and has a concave object-side surface S3 and a convex 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 convex object-side surface S9 and a convex image-side surface S10. The sixth lens element E6 has positive power, and has a concave object-side surface S11 and a convex image-side surface S12. The seventh lens element E7 has negative power, and has a convex object-side surface S13 and a concave image-side surface S14. The eighth lens element E8 has positive power, and has a convex object-side surface S15 and a convex image-side surface S16. The ninth lens element has negative power, and has a convex object-side surface S17 and a concave image-side surface S18. Filter E10 has an object side S19 and an image side S20. The optical imaging lens has an imaging surface S21, and light from the object passes through the respective surfaces S1 to S20 in order and is finally imaged on the imaging surface S21.
In embodiment 8, the value of the total effective focal length f of the optical imaging lens is 1.38mm, the value of the f-number Fno of the optical imaging lens is 1.90, the value of the on-axis distance TTL from the object side surface S1 to the imaging plane S21 of the first lens E1 is 4.20mm, the value of the half ImgH of the diagonal length of the effective pixel region on the imaging plane S21 is 1.82mm, and the value of the half semifov of the maximum angle of view-FOV is 52.0 °.
Table 15 shows a basic parameter table of the optical imaging lens of embodiment 8, in which the units of the radius of curvature, the thickness/distance, and the focal length are all millimeters (mm). Table 16 shows high-order term coefficients that can be used for each aspherical mirror surface in example 8, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above.
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 8.5428E-01 | -1.6384E+00 | 3.1056E+00 | -4.4927E+00 | 4.6956E+00 | -3.3697E+00 | 1.5658E+00 | -4.2211E-01 | 4.9896E-02 |
| S2 | 7.6038E-01 | -1.4576E+00 | 2.2903E+00 | -4.4215E-02 | -9.6300E+00 | 2.2975E+01 | -2.6861E+01 | 1.6106E+01 | -3.9045E+00 |
| S3 | -1.0399E-02 | 1.3228E+00 | -4.1436E+00 | 8.5298E+00 | -2.8907E+01 | 8.5653E+01 | -1.4212E+02 | 1.1987E+02 | -4.0560E+01 |
| S4 | 7.9792E-01 | 3.5233E-01 | 1.7159E+01 | -2.5423E+02 | 1.7705E+03 | -7.6182E+03 | 1.9853E+04 | -2.8190E+04 | 1.6610E+04 |
| S5 | 5.2520E-01 | 5.5542E-01 | -2.1333E+01 | 1.3777E+02 | -5.0694E+02 | 4.0851E+02 | 3.6507E+03 | -1.1981E+04 | 1.1147E+04 |
| S6 | 2.2537E-01 | -5.9718E-01 | -1.2903E+01 | 4.3307E+02 | -5.6677E+03 | 4.0185E+04 | -1.6011E+05 | 3.3906E+05 | -2.9659E+05 |
| S7 | 2.4937E-03 | -1.6466E+00 | 5.2506E+01 | -9.3840E+02 | 9.6956E+03 | -5.9890E+04 | 2.1857E+05 | -4.3379E+05 | 3.6097E+05 |
| S8 | 4.5166E-01 | -9.2392E+00 | 1.1664E+02 | -9.8142E+02 | 5.5886E+03 | -2.1082E+04 | 5.0374E+04 | -6.8906E+04 | 4.1114E+04 |
| S9 | 3.6243E-01 | -7.2998E+00 | 6.5943E+01 | -4.0267E+02 | 1.6407E+03 | -4.3438E+03 | 7.1578E+03 | -6.6859E+03 | 2.7269E+03 |
| S10 | -1.5952E-01 | -1.2380E+00 | 3.5559E+00 | 5.2440E+00 | -8.3684E+01 | 3.3794E+02 | -6.9777E+02 | 7.2654E+02 | -2.8955E+02 |
| S11 | -1.1432E-10 | -8.9638E-12 | 1.3182E-10 | -1.0979E-09 | 5.6325E-09 | -1.7971E-08 | 3.4563E-08 | -3.6545E-08 | 1.6273E-08 |
| S12 | 8.7765E-02 | -3.2368E+00 | 4.1202E+01 | -2.8580E+02 | 1.1695E+03 | -2.9331E+03 | 4.4556E+03 | -3.7734E+03 | 1.3696E+03 |
| S13 | -1.2229E-01 | -4.0464E+00 | 3.4093E+01 | -1.8245E+02 | 5.9331E+02 | -1.1666E+03 | 1.3470E+03 | -8.3318E+02 | 2.1033E+02 |
| S14 | 6.4093E-02 | -3.8310E+00 | 2.1028E+01 | -7.3883E+01 | 1.7281E+02 | -2.6251E+02 | 2.4658E+02 | -1.2969E+02 | 2.9142E+01 |
| S15 | 5.1398E-01 | -2.5801E+00 | 7.4552E+00 | -8.7701E+00 | -7.1072E+00 | 3.6602E+01 | -4.9151E+01 | 3.1042E+01 | -7.9307E+00 |
| S16 | 1.0861E+00 | -4.6834E+00 | 2.0926E+01 | -6.9081E+01 | 1.5876E+02 | -2.3620E+02 | 2.1291E+02 | -1.0491E+02 | 2.1606E+01 |
| S17 | -1.6762E+00 | 2.2430E+00 | -2.1293E+00 | 1.5167E+00 | -4.8046E+00 | 1.6426E+01 | -2.6042E+01 | 1.9145E+01 | -5.3384E+00 |
| S18 | -7.6578E-01 | 1.5626E+00 | -2.3824E+00 | 2.6170E+00 | -2.0071E+00 | 1.0361E+00 | -3.4115E-01 | 6.4530E-02 | -5.3306E-03 |
TABLE 16
Fig. 16A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 8, which represents the convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 16B shows an astigmatism curve representing meridional field curvature and sagittal field curvature of the optical imaging lens of embodiment 8. Fig. 16C shows a distortion curve of the optical imaging lens of embodiment 8, which represents distortion magnitude values corresponding to different image heights. Fig. 16D shows a chromatic aberration of magnification curve of the optical imaging lens of embodiment 8, which represents a deviation of different image heights on the imaging surface after light passes through the lens. As can be seen from fig. 16A to 16D, the optical imaging lens according to embodiment 8 can achieve good imaging quality.
In summary, examples 1 to 8 each satisfy the relationship shown in table 17.
| Conditional expression (A) example | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| f7/f1 | 2.79 | 2.25 | 2.17 | 2.42 | 3.05 | 3.07 | 2.42 | 2.14 |
| f5/(f4+f8) | 4.27 | 2.03 | 3.43 | 3.33 | 3.82 | 3.14 | 2.08 | 2.99 |
| f9/f | -1.17 | -1.35 | -0.86 | -0.94 | -0.96 | -1.04 | -1.42 | -1.04 |
| R6/(R1+R8) | -1.38 | -1.16 | -0.83 | -0.91 | -1.86 | -2.36 | -1.57 | -2.77 |
| (R12+R13)/(R12-R13) | 0.24 | 0.11 | 0.32 | 0.39 | 0.38 | 0.31 | 0.17 | 0.55 |
| R14/R16 | -2.24 | -2.06 | -1.83 | -1.75 | -1.89 | -1.89 | -2.02 | -1.61 |
| R17/R18 | 2.26 | 2.20 | 2.55 | 2.50 | 2.79 | 2.63 | 2.40 | 2.73 |
| ∑CT/∑AT | 3.73 | 3.58 | 3.68 | 3.76 | 3.90 | 4.23 | 4.14 | 3.93 |
| TTL/ImgH | 2.31 | 2.31 | 2.31 | 2.31 | 2.15 | 2.31 | 2.31 | 2.31 |
| R13/N7(mm) | 1.78 | 2.03 | 1.50 | 1.38 | 1.32 | 1.39 | 1.75 | 1.22 |
| N9/R17(mm-1) | 1.45 | 1.49 | 1.35 | 1.34 | 1.17 | 1.22 | 1.25 | 1.15 |
| R10/CT5 | -26.75 | -24.24 | -26.21 | -25.86 | -24.46 | -25.37 | -23.88 | -27.36 |
| R11/CT6 | -19.19 | -15.32 | -19.34 | -18.67 | -18.11 | -17.19 | -16.78 | -28.51 |
TABLE 17
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 (26)
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, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, and a ninth lens;
wherein any two adjacent lenses of the first lens to the ninth lens have an air space on the optical axis;
half of the Semi-FOV of the maximum field angle of the optical imaging lens meets the condition that the Semi-FOV is more than or equal to 45 degrees;
the effective focal length f7 of the seventh lens and the effective focal length f1 of the first lens satisfy 2.0 < f7/f1 < 3.5.
2. The optical imaging lens according to claim 1, characterized in that an effective focal length f4 of the fourth lens, an effective focal length f5 of the fifth lens, and an effective focal length f8 of the eighth lens satisfy 2.0 < f5/(f4+ f8) < 4.5.
3. The optical imaging lens of claim 1, wherein the effective focal length f9 of the ninth lens and the total effective focal length f of the optical imaging lens satisfy-1.5 < f9/f < -0.5.
4. The optical imaging lens of claim 1, wherein a radius of curvature R1 of the object-side surface of the first lens, a radius of curvature R6 of the image-side surface of the third lens, and a radius of curvature R8 of the image-side surface of the fourth lens satisfy-3.0 < R6/(R1+ R8) < -0.5.
5. The optical imaging lens of claim 1, wherein a radius of curvature R12 of an image-side surface of the sixth lens and a radius of curvature R13 of an object-side surface of the seventh lens satisfy 0 < (R12+ R13)/(R12-R13) < 1.0.
6. The optical imaging lens of claim 1, wherein a radius of curvature R14 of the image-side surface of the seventh lens and a radius of curvature R16 of the image-side surface of the eighth lens satisfy-2.5 < R14/R16 < -1.5.
7. The optical imaging lens of claim 1, wherein a radius of curvature R17 of an object-side surface of the ninth lens and a radius of curvature R18 of an image-side surface of the ninth lens satisfy 2.0 < R17/R18 < 3.0.
8. The optical imaging lens according to claim 1, wherein a sum Σ CT of center thicknesses on the optical axis of each of the first to ninth lenses and a sum Σ AT of separation distances on the optical axis of any adjacent two lenses of the first to ninth lenses satisfy 3.5 ∑ CT/∑ AT < 4.5.
9. The optical imaging lens of claim 1, wherein a distance TTL between an object side surface of the first lens element and an imaging surface of the optical imaging lens on the optical axis and a half ImgH of a diagonal length of an effective pixel area on the imaging surface of the optical imaging lens satisfy 2.0 < TTL/ImgH < 2.5.
10. The optical imaging lens according to any one of claims 1 to 9, characterized in that a radius of curvature R13 of an object side surface of the seventh lens and a refractive index N7 of the seventh lens satisfy 1.0mm < R13/N7 < 2.5 mm.
11. The optical imaging lens according to any one of claims 1 to 9, characterized in that a refractive index N9 of the ninth lens and a radius of curvature R17 of an object side surface of the ninth lens satisfy 1.0mm-1＜N9/R17＜1.5mm-1。
12. The optical imaging lens according to any one of claims 1 to 9, wherein a radius of curvature R10 of an image side surface of the fifth lens and a center thickness CT5 of the fifth lens on the optical axis satisfy-28.0 < R10/CT5 < -23.0.
13. The optical imaging lens according to any one of claims 1 to 9, characterized in that a radius of curvature R11 of an object side surface of the sixth lens and a center thickness CT6 of the sixth lens on the optical axis satisfy-29.0 < R11/CT6 < -15.0.
14. 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, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, and a ninth lens;
wherein any two adjacent lenses of the first lens to the ninth lens have an air space on the optical axis;
half of the Semi-FOV of the maximum field angle of the optical imaging lens meets the condition that the Semi-FOV is more than or equal to 45 degrees;
the distance TTL from the object side surface of the first lens to the imaging surface of the optical imaging lens on the optical axis and the half ImgH of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens meet the condition that the TTL/ImgH is more than 2.0 and less than 2.5.
15. The optical imaging lens of claim 14, wherein an effective focal length f4 of the fourth lens, an effective focal length f5 of the fifth lens, and an effective focal length f8 of the eighth lens satisfy 2.0 < f5/(f4+ f8) < 4.5.
16. The optical imaging lens of claim 15, wherein the effective focal length f7 of the seventh lens and the effective focal length f1 of the first lens satisfy 2.0 < f7/f1 < 3.5.
17. The optical imaging lens of claim 14, wherein the effective focal length f9 of the ninth lens and the total effective focal length f of the optical imaging lens satisfy-1.5 < f9/f < -0.5.
18. The optical imaging lens of claim 14, wherein a radius of curvature R1 of the object-side surface of the first lens, a radius of curvature R6 of the image-side surface of the third lens, and a radius of curvature R8 of the image-side surface of the fourth lens satisfy-3.0 < R6/(R1+ R8) < -0.5.
19. The optical imaging lens of claim 14, wherein a radius of curvature R12 of an image side surface of the sixth lens and a radius of curvature R13 of an object side surface of the seventh lens satisfy 0 < (R12+ R13)/(R12-R13) < 1.0.
20. The optical imaging lens of claim 14, wherein a radius of curvature R14 of the image-side surface of the seventh lens and a radius of curvature R16 of the image-side surface of the eighth lens satisfy-2.5 < R14/R16 < -1.5.
21. The optical imaging lens of claim 14, wherein a radius of curvature R17 of an object-side surface of the ninth lens and a radius of curvature R18 of an image-side surface of the ninth lens satisfy 2.0 < R17/R18 < 3.0.
22. The optical imaging lens according to claim 14, wherein a sum Σ CT of center thicknesses on the optical axis of each of the first to ninth lenses and a sum Σ AT of separation distances on the optical axis of any adjacent two of the first to ninth lenses satisfy 3.5 ∑ CT/∑ AT < 4.5.
23. The optical imaging lens according to any one of claims 14 to 22, wherein a radius of curvature R13 of an object side surface of the seventh lens and a refractive index N7 of the seventh lens satisfy 1.0mm < R13/N7 < 2.5 mm.
24. The optical imaging lens according to any one of claims 14 to 22, wherein the refractive index N9 of the ninth lens and the radius of curvature R17 of the object side surface of the ninth lens satisfy 1.0mm-1＜N9/R17＜1.5mm-1。
25. The optical imaging lens of any one of claims 14 to 22, wherein a radius of curvature R10 of an image side surface of the fifth lens and a central thickness CT5 of the fifth lens on the optical axis satisfy-28.0 < R10/CT5 < -23.0.
26. The optical imaging lens according to any one of claims 14 to 22, wherein a radius of curvature R11 of an object side surface of the sixth lens and a center thickness CT6 of the sixth lens on the optical axis satisfy-29.0 < R11/CT6 < -15.0.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022077598A1 (en) * | 2020-10-14 | 2022-04-21 | 诚瑞光学(深圳)有限公司 | Camera optical lens |
| WO2023283871A1 (en) * | 2021-07-15 | 2023-01-19 | 欧菲光集团股份有限公司 | Optical system, image capture module, and electronic device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022077598A1 (en) * | 2020-10-14 | 2022-04-21 | 诚瑞光学(深圳)有限公司 | Camera optical lens |
| WO2023283871A1 (en) * | 2021-07-15 | 2023-01-19 | 欧菲光集团股份有限公司 | Optical system, image capture module, and electronic device |
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