CN209911623U - Imaging lens - Google Patents
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- CN209911623U CN209911623U CN201822184586.8U CN201822184586U CN209911623U CN 209911623 U CN209911623 U CN 209911623U CN 201822184586 U CN201822184586 U CN 201822184586U CN 209911623 U CN209911623 U CN 209911623U
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Abstract
The application discloses imaging lens, this imaging lens includes along optical axis from the thing side to the image side in proper order: 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, wherein the first lens has a positive power; the third lens has positive optical power; the fourth lens has a negative optical power; the fifth lens has positive focal power; at least one of the first lens to the eighth lens has a non-rotationally symmetric aspherical surface; the distance TTL from the center of the object side surface of the first lens to the imaging surface of the imaging lens on the optical axis, the effective focal length fx in the X-axis direction of the imaging lens and the effective focal length fy in the Y-axis direction of the imaging lens meet the condition that TTL/(fx + fy) × 2< 1.1. The imaging lens is an eight-piece imaging lens which is high in pixel, long in focus and small in size, and can well meet the use requirements of various special scenes.
Description
Technical Field
The present invention relates to an imaging lens, and more particularly, to an optical imaging lens including eight lenses.
Background
In recent years, with the development of a compact imaging lens and the popularization of a chip of a Complementary Metal Oxide Semiconductor (CMOS) or a photo-coupled device (CCD) having a large size and a high pixel, each large-sized terminal manufacturer has made higher demands for the performance of the imaging lens. Because various current terminal lenses mostly adopt a surface type structure of a rotationally symmetric (axisymmetric) aspheric surface, and only have sufficient freedom degree in a meridional direction, the lens cannot effectively correct off-axis meridional aberration and sagittal aberration.
SUMMERY OF THE UTILITY MODEL
The present application provides an imaging lens applicable to a portable electronic product, for example, an imaging lens applicable to a portable electronic product, which can at least solve or partially solve at least one of the above-mentioned disadvantages in the related art.
In one aspect, the present application provides an imaging lens, in order from an object side to an image side: 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, wherein the first lens has a positive power; the third lens has positive optical power; the fourth lens has a negative optical power; the fifth lens has positive focal power; at least one of the first lens to the eighth lens has a non-rotationally symmetric aspherical surface; the distance TTL from the center of the object side surface of the first lens to the imaging surface of the imaging lens on the optical axis, the effective focal length fx in the X-axis direction of the imaging lens and the effective focal length fy in the Y-axis direction of the imaging lens meet the condition that TTL/(fx + fy) × 2< 1.1.
In one embodiment, the effective focal length fx of the imaging lens in the X-axis direction and the effective focal length fy of the imaging lens in the Y-axis direction satisfy 0.8 < fx/fy < 1.2.
In one embodiment, ImgH, which is half the diagonal length of the effective pixel area on the imaging surface, and the effective focal length fy in the Y-axis direction of the imaging lens satisfy ImgH/fy < 0.5.
In one embodiment, the effective focal length f3 of the third lens, the effective focal length f1 of the first lens, and the effective focal length f5 of the fifth lens satisfy 0< f3/(f1+ f5) < 0.8.
In one embodiment, the effective focal length f4 of the fourth lens and the radius of curvature of the image side surface R8 of the fourth lens satisfy-2.3 < f4/R8< -1.3.
In one embodiment, the radius of curvature R5 of the third lens object-side surface and the radius of curvature R1 of the first lens object-side surface satisfy 1< R5/R1< 1.8.
In one embodiment, the radius of curvature R12 of the image-side surface of the sixth lens element, the radius of curvature R13 of the object-side surface of the seventh lens element, the radius of curvature R16 of the image-side surface of the eighth lens element and the radius of curvature R10 of the image-side surface of the fifth lens element satisfy 0.3 ≦ (R12+ R13-R16)/R10 ≦ 1.3.
In one embodiment, the central thickness CT1 of the first lens, the central thickness CT2 of the second lens, the central thickness CT3 of the third lens, and the central thickness CT4 of the fourth lens satisfy 0.5< CT1/(CT2+ CT3+ CT4) < 1.2.
In one embodiment, an air interval T45 between the fourth lens and the fifth lens, an air interval T56 between the fifth lens and the sixth lens, and an air interval T67 between the sixth lens and the seventh lens satisfy 0.3< T45/(T56+ T67) < 1.0.
In one embodiment, a distance SL from the stop to the imaging surface on the optical axis and a distance TTL from a center of the object-side surface of the first lens to the imaging surface on the optical axis satisfy 0.6< SL/TTL < 0.8.
In one embodiment, the effective half aperture DT21 of the object side surface of the second lens, the effective half aperture DT22 of the image side surface of the second lens and half ImgH of the diagonal length of the effective pixel area on the imaging plane satisfy 1.0< (DT21+ DT22)/ImgH < 1.5.
In one embodiment, the edge thickness ET5 of the fifth lens, the edge thickness ET6 of the sixth lens, the center thickness CT5 of the fifth lens and the center thickness CT6 of the sixth lens satisfy 0.5< (ET5+ ET6)/(CT5+ CT6) < 1.0.
In one embodiment, the second lens has a concave image-side surface; the image side surface of the fifth lens is a convex surface; and the image side surface of the eighth lens is a concave surface.
In another aspect, the present application provides an imaging lens including, in order from an object side to an image side: 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, wherein the first lens has a positive power; the third lens has positive optical power; the fourth lens has a negative optical power; the fifth lens has positive focal power; at least one of the first lens to the eighth lens has a non-rotationally symmetric aspherical surface; the effective focal length fx of the imaging lens in the X-axis direction and the effective focal length fy of the imaging lens in the Y-axis direction meet the condition that fx/fy is more than 0.8 and less than 1.2.
In another aspect, the present application provides an imaging lens, in order from an object side to an image side, comprising: 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, wherein the first lens has a positive power; the third lens has positive optical power; the fourth lens has a negative optical power; the fifth lens has positive focal power; at least one of the first lens to the eighth lens has a non-rotationally symmetric aspherical surface; the half of the diagonal length of the effective pixel area on the imaging surface ImgH and the effective focal length fy of the imaging lens in the Y-axis direction meet the condition that ImgH/fy is less than 0.5.
In another aspect, the present application provides an imaging lens, in order from an object side to an image side, comprising: 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, wherein the first lens has a positive power; the third lens has positive optical power; the fourth lens has a negative optical power; the fifth lens has positive focal power; at least one of the first lens to the eighth lens has a non-rotationally symmetric aspherical surface; an effective focal length f3 of the third lens, an effective focal length f1 of the first lens, and an effective focal length f5 of the fifth lens satisfy 0< f3/(f1+ f5) < 0.8.
In another aspect, the present application provides an imaging lens, in order from an object side to an image side, comprising: 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, wherein the first lens has a positive power; the third lens has positive optical power; the fourth lens has a negative optical power; the fifth lens has positive focal power; at least one of the first lens to the eighth lens has a non-rotationally symmetric aspherical surface; the effective focal length f4 of the fourth lens and the curvature radius R8 of the image side surface of the fourth lens meet-2.3 < f4/R8< -1.3.
In another aspect, the present application provides an imaging lens, in order from an object side to an image side, comprising: 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, wherein the first lens has a positive power; the third lens has positive optical power; the fourth lens has a negative optical power; the fifth lens has positive focal power; at least one of the first lens to the eighth lens has a non-rotationally symmetric aspherical surface; the radius of curvature R5 of the third lens object-side surface and the radius of curvature R1 of the first lens object-side surface satisfy 1< R5/R1< 1.8.
In another aspect, the present application provides an imaging lens, in order from an object side to an image side, comprising: 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, wherein the first lens has a positive power; the third lens has positive optical power; the fourth lens has a negative optical power; the fifth lens has positive focal power; at least one of the first lens to the eighth lens has a non-rotationally symmetric aspherical surface; the curvature radius R12 of the image side surface of the sixth lens, the curvature radius R13 of the object side surface of the seventh lens, the curvature radius R16 of the image side surface of the eighth lens and the curvature radius R10 of the image side surface of the fifth lens meet 0.3-1.3 (R12+ R13-R16)/R10.
In another aspect, the present application provides an imaging lens, in order from an object side to an image side, comprising: 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, wherein the first lens has a positive power; the third lens has positive optical power; the fourth lens has a negative optical power; the fifth lens has positive focal power; at least one of the first lens to the eighth lens has a non-rotationally symmetric aspherical surface; the central thickness CT1 of the first lens, the central thickness CT2 of the second lens, the central thickness CT3 of the third lens, and the central thickness CT4 of the fourth lens satisfy 0.5< CT1/(CT2+ CT3+ CT4) < 1.2.
In another aspect, the present application provides an imaging lens, in order from an object side to an image side, comprising: 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, wherein the first lens has a positive power; the third lens has positive optical power; the fourth lens has a negative optical power; the fifth lens has positive focal power; at least one of the first lens to the eighth lens has a non-rotationally symmetric aspherical surface; an air interval T45 between the fourth lens and the fifth lens, an air interval T56 between the fifth lens and the sixth lens, and an air interval T67 between the sixth lens and the seventh lens satisfy 0.3< T45/(T56+ T67) < 1.0.
In another aspect, the present application provides an imaging lens, in order from an object side to an image side, comprising: 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, wherein the first lens has a positive power; the third lens has positive optical power; the fourth lens has a negative optical power; the fifth lens has positive focal power; at least one of the first lens to the eighth lens has a non-rotationally symmetric aspherical surface; the distance SL from the diaphragm to the imaging surface on the optical axis and the distance TTL from the center of the object side surface of the first lens to the imaging surface on the optical axis satisfy 0.6< SL/TTL < 0.8.
In another aspect, the present application provides an imaging lens, in order from an object side to an image side, comprising: 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, wherein the first lens has a positive power; the third lens has positive optical power; the fourth lens has a negative optical power; the fifth lens has positive focal power; at least one of the first lens to the eighth lens has a non-rotationally symmetric aspherical surface; the effective half aperture DT21 of the object side surface of the second lens, the effective half aperture DT22 of the image side surface of the second lens and the half length ImgH of the diagonal line of the effective pixel area on the imaging surface satisfy 1.0< (DT21+ DT22)/ImgH < 1.5.
In another aspect, the present application provides an imaging lens, in order from an object side to an image side, comprising: 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, wherein the first lens has a positive power; the third lens has positive optical power; the fourth lens has a negative optical power; the fifth lens has positive focal power; at least one of the first lens to the eighth lens has a non-rotationally symmetric aspherical surface; the edge thickness ET5 of the fifth lens, the edge thickness ET6 of the sixth lens, the center thickness CT5 of the fifth lens and the center thickness CT6 of the sixth lens satisfy 0.5< (ET5+ ET6)/(CT5+ CT6) < 1.0.
In another aspect, the present application provides an imaging lens, in order from an object side to an image side, comprising: 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, wherein the first lens has a positive power; the third lens has positive optical power; the fourth lens has a negative optical power; the fifth lens has positive focal power; at least one of the first lens to the eighth lens has a non-rotationally symmetric aspherical surface; the image side surface of the second lens is a concave surface; the image side surface of the fifth lens is a convex surface; and the image side surface of the eighth lens is a concave surface.
The imaging lens has at least one beneficial effect of long focal length, good imaging quality, low sensitivity and the like 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 of each lens.
In addition, the free-form surface is a non-rotationally symmetrical aspheric surface, and non-rotationally symmetrical components are added on the basis of the rotationally symmetrical aspheric surface, so that the free-form surface is introduced into the lens system, the off-axis meridional aberration and sagittal aberration can be effectively corrected at the same time, and the performance of the optical system is greatly improved. Therefore, the free-form surface has great significance in the design and production of the camera lens.
Therefore, the eight-lens imaging lens with high pixels, long focal length and miniaturization can better meet the use requirements of various special scenes.
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 configuration diagram of an imaging lens according to embodiment 1 of the present application;
fig. 2 schematically shows a case where the RMS spot diameter of the imaging lens of embodiment 1 is in the first quadrant;
fig. 3 shows a schematic configuration diagram of an imaging lens according to embodiment 2 of the present application;
fig. 4 schematically shows a case where the RMS spot diameter of the imaging lens of embodiment 2 is in the first quadrant;
fig. 5 is a schematic structural view showing an imaging lens according to embodiment 3 of the present application;
fig. 6 schematically shows a case where the RMS spot diameter of the imaging lens of embodiment 3 is in the first quadrant;
fig. 7 shows a schematic configuration diagram of an imaging lens according to embodiment 4 of the present application;
fig. 8 schematically shows a case where the RMS spot diameter of the imaging lens of embodiment 4 is in the first quadrant;
fig. 9 is a schematic structural view showing an imaging lens according to embodiment 5 of the present application;
fig. 10 schematically shows a case where the RMS spot diameter of the imaging lens of embodiment 5 is in the first quadrant;
fig. 11 is a schematic structural view showing an imaging lens according to embodiment 6 of the present application;
fig. 12 schematically shows a case where the RMS spot diameter of the imaging lens of embodiment 6 is in the first quadrant;
fig. 13 is a schematic structural view showing an imaging lens according to embodiment 7 of the present application;
fig. 14 schematically shows a case where the RMS spot diameter of the imaging lens of embodiment 7 is in the first quadrant;
fig. 15 shows a schematic configuration diagram of an imaging lens according to embodiment 8 of the present application;
fig. 16 schematically shows a case where the RMS spot diameter of the imaging lens of embodiment 8 is in the first quadrant;
fig. 17 is a schematic structural view showing an imaging lens according to embodiment 9 of the present application;
fig. 18 schematically shows a case where the RMS spot diameter of the imaging lens of embodiment 9 is in the first quadrant;
fig. 19 is a schematic structural view showing an imaging lens according to embodiment 10 of the present application;
fig. 20 schematically shows a case where the RMS spot diameter of the imaging lens of embodiment 10 is in the first quadrant;
fig. 21 is a schematic structural view showing an imaging lens according to embodiment 11 of the present application; and
fig. 22 schematically shows a case where the RMS spot diameter of the imaging lens of embodiment 11 is in the first quadrant.
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 each lens, the surface closest to the subject is referred to as the object side of the lens; in each lens, the surface closest to the imaging plane is referred to as the image side surface of the lens.
In this document, we define a direction parallel to the optical axis as a Z-axis direction, a direction perpendicular to the Z-axis and lying in a meridional plane as a Y-axis direction, and a direction perpendicular to the Z-axis and lying in a sagittal plane as an X-axis direction. Unless otherwise specified, each of the parametric symbols (e.g., radius of curvature, optical power, or the like) herein other than the parametric symbol relating to the field of view represents a characteristic parametric value in the Y-axis direction of the imaging lens. For example, the conditional expression "R1/R10" represents a ratio of the radius of curvature R1Y in the Y-axis direction of the object-side surface of the first lens to the radius of curvature R10Y in the Y-axis direction of the image-side surface of the fifth lens, unless otherwise specified.
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 imaging lens according to an exemplary embodiment of the present application may include, for example, eight 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, and an eighth lens. The eight lenses are arranged in sequence from an object side to an image side along an optical axis, and an air space is formed between every two adjacent lenses.
In an exemplary embodiment, the first lens may have a positive optical power; the second lens may have a positive or negative optical power; the third lens may have a positive optical power; the fourth lens may have a negative optical power; the fifth lens may have a positive optical 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.
The image quality can be further improved by disposing the object-side surface and/or the image-side surface of at least one of the first lens to the eighth lens to be a non-rotationally symmetric aspherical surface. The non-rotationally symmetrical aspheric surface is a free-form surface, and non-rotationally symmetrical components are added on the basis of the rotationally symmetrical aspheric surface, so that the introduction of the non-rotationally symmetrical aspheric surface into the lens system is beneficial to effectively correcting off-axis meridional aberration and sagittal aberration, and the performance of the optical system is greatly improved.
In an exemplary embodiment, the first lens may have a positive optical power and the object side surface thereof may be convex.
In an exemplary embodiment, the second lens image side surface may be concave.
In an exemplary embodiment, the third lens may have a positive optical power, and the object-side surface thereof may be convex.
In an exemplary embodiment, the fourth lens may have a negative optical power, and the image-side surface thereof may be concave.
In an exemplary embodiment, the fifth lens may have positive optical power, and the image-side surface thereof may be convex.
In an exemplary embodiment, the image side surface of the sixth lens element may be convex.
In an exemplary embodiment, the object side surface of the seventh lens may be concave.
In an exemplary embodiment, an image side surface of the eighth lens may be concave.
In an exemplary embodiment, at least one of the first lens to the eighth lens has a non-rotationally symmetric aspherical surface.
The focal power of the first lens is reasonably controlled, so that the first lens has good machinability, the imaging system has the advantage of a large field angle, and meanwhile, the incident angle of the chief ray of the imaging system incident on the image plane is favorably reduced, and the relative illumination of the image plane is improved. The focal power of the third, fourth and fifth lenses is reasonably controlled, which is beneficial to correcting the off-axis aberration of the optical lens group and improving the imaging quality. By introducing the non-rotationally symmetrical aspheric surface, off-axis meridional aberration and sagittal aberration of the camera lens are corrected, and further image quality improvement can be obtained.
In an exemplary embodiment, the imaging lens of the present application may satisfy a conditional expression TTL/(fx + fy) × 2<1.1, where TTL is a distance from a center of an object-side surface of the first lens element to an imaging surface of the imaging lens on the optical axis, fx is an effective focal length of the imaging lens in an X-axis direction, and fy is an effective focal length of the imaging lens in a Y-axis direction. More specifically, TTL, fx, and fy can further satisfy TTL/(fx + fy) × 2 ≦ 1.08. By controlling the ratio of the total length to the focal length in the XY direction, the miniaturization of the imaging lens is ensured while the imaging lens has long-focus characteristics.
In an exemplary embodiment, the imaging lens of the present application may satisfy the conditional expression 0.8 < fx/fy <1.2, where fx is an effective focal length of the imaging lens in an X-axis direction and fy is an effective focal length of the imaging lens in a Y-axis direction. More specifically, fx and fx can further satisfy 0.80. ltoreq. fx/fy. ltoreq.1.25. By controlling the ratio of the focal lengths in the X direction and the Y direction, the uniformity of the image quality of the lens in the X direction, the Y direction and the whole image plane can be ensured, and the stability of the image quality is favorably maintained.
In an exemplary embodiment, the imaging lens of the present application may satisfy a conditional expression ImgH/fy <0.5, where ImgH is a half of a diagonal length of an effective pixel area on an imaging plane, and fy is an effective focal length in a Y-axis direction of the imaging lens. More specifically, ImgH and fy can further satisfy ImgH/fy ≦ 0.42. By controlling the ratio of the image height to the effective focal length in the Y-axis direction, the long-focus characteristic of the lens can be ensured, so that the lens has small depth of field and larger magnification; meanwhile, the total length of the imaging lens is shortened, and the miniaturization of the imaging lens is ensured.
In an exemplary embodiment, the imaging lens of the present application may satisfy the conditional expression 0< f3/(f1+ f5) <0.8, where f3 is an effective focal length of the third lens, f1 is an effective focal length of the first lens, and f5 is an effective focal length of the fifth lens. More specifically, f3, f1 and f5 can further satisfy 0.04. ltoreq. f3/(f1+ f 5). ltoreq.0.79. By satisfying the conditional expression, the image dispersion amount of the imaging system can be effectively controlled, thereby improving the image quality of the system.
In an exemplary embodiment, the imaging lens of the present application may satisfy the conditional expression-2.3 < f4/R8< -1.3, where f4 is an effective focal length of the fourth lens, and R8 is a radius of curvature of an image-side surface of the fourth lens. More specifically, f4 and R8 may further satisfy-2.07. ltoreq. f 4/R8. ltoreq. 1.51. The curvature of field contribution of the image side surface of the fourth lens is in a reasonable range by controlling the ratio of the effective focal length of the fourth lens to the curvature radius of the image side surface of the fourth lens, so that the curvature of field contribution of the subsequent lens is balanced.
In an exemplary embodiment, the imaging lens of the present application may satisfy the conditional expression 1< R5/R1<1.8, where R5 is a radius of curvature of the object-side surface of the third lens and R1 is a radius of curvature of the object-side surface of the first lens. More specifically, R5 and R1 may further satisfy 1.08. ltoreq. R5/R1. ltoreq.1.65. The coma contribution rate of the first lens and the third lens is controlled within a reasonable range by restricting the ranges of the curvature radius of the object side surface of the first lens and the curvature radius of the object side surface of the third lens, so that the coma generated by the front-end lens component can be well balanced, and good imaging quality is obtained.
In an exemplary embodiment, the imaging lens of the present application may satisfy the conditional expression of 0.3 ≦ (R12+ R13-R16)/R10 ≦ 1.3, where R12 is a radius of curvature of the image side surface of the sixth lens, R13 is a radius of curvature of the object side surface of the seventh lens, R16 is a radius of curvature of the image side surface of the eighth lens, and R10 is a radius of curvature of the image side surface of the fifth lens. More specifically, R12, R13, R16 and R10 may further satisfy 0.31. ltoreq. of (R12+ R13-R16)/R10. ltoreq.1.30. The condition is reasonably controlled in a reasonable range, and the bending directions and the bending degrees of the four lenses can be controlled, so that the focal power and the curvature of field are effectively controlled, and the integral image quality of the system is improved.
In an exemplary embodiment, the imaging lens of the present application may satisfy the conditional expression 0.5< CT1/(CT2+ CT3+ CT4) <1.2, where CT1 is a center thickness of the first lens, CT2 is a center thickness of the second lens, CT3 is a center thickness of the third lens, and CT4 is a center thickness of the fourth lens. More specifically, CT1, CT2, CT3 and CT4 may further satisfy 0.71. ltoreq. CT1/(CT2+ CT3+ CT 4). ltoreq.1.08. By controlling the conditional expression within a reasonable range, the processing and the assembly of the lens are facilitated, the distortion of a system can be controlled, and the overall image quality is improved.
In an exemplary embodiment, the imaging lens of the present application may satisfy the conditional expression 0.3< T45/(T56+ T67) <1.0, where T45 is an air interval between the fourth lens and the fifth lens, T56 is an air interval between the fifth lens and the sixth lens, and T67 is an air interval between the sixth lens and the seventh lens. More specifically, T45, T56 and T67 may further satisfy 0.37. ltoreq. T45/(T56+ T67). ltoreq.0.94. By controlling the conditional expressions in a reasonable range, the positions of the fourth lens to the seventh lens can be effectively limited, the compact type of the lens structure is favorably realized, the off-axis aberration is favorably corrected, and the integral image quality of the system is improved.
In an exemplary embodiment, the imaging lens of the present application may satisfy a conditional expression 0.6< SL/TTL <0.8, where SL is a distance on the optical axis from a stop to an imaging surface of the imaging lens, and TTL is a distance on the optical axis from a center of an object-side surface of the first lens to the imaging surface of the imaging lens. More specifically, SL and TTL can further satisfy 0.72 ≦ SL/TTL ≦ 0.79. Through selecting a proper position of the diaphragm, the optical imaging lens can effectively correct the aberration (coma, astigmatism, distortion and axial chromatic aberration) related to the diaphragm.
In an exemplary embodiment, the imaging lens of the present application may satisfy the conditional expression 1.0< (DT21+ DT22)/ImgH <1.5, where DT21 is an effective half aperture of an object side surface of the second lens, DT22 is an effective half aperture of an image side surface of the second lens, and ImgH is a half of a diagonal length of an effective pixel region on an imaging plane. More specifically, DT21, DT22 and ImgH may further satisfy 1.01 ≦ (DT21+ DT22)/ImgH ≦ 1.43. By controlling the conditional expression in a reasonable range, the shape and size of the second lens can be controlled in a reasonable range, and the miniaturization of the imaging lens is facilitated.
In an exemplary embodiment, the imaging lens of the present application may satisfy the conditional expression of 0.5< (ET5+ ET6)/(CT5+ CT6) <1.0, where ET5 is an edge thickness of the fifth lens, ET6 is an edge thickness of the sixth lens, CT5 is a center thickness of the fifth lens, and CT6 is a center thickness of the sixth lens. More specifically, ET5, ET6, CT5 and CT6 can further satisfy 0.64 ≦ (ET5+ ET6)/(CT5+ CT6) ≦ 0.89. By restricting the ratio of the edge thickness to the center thickness of the fifth lens and the sixth lens, the shape and thickness ratio of the fifth lens and the sixth lens can be effectively controlled, and the range of residual distortion after balancing can be reasonably controlled, so that the optical imaging lens has good distortion performance.
Optionally, the imaging lens may further include a filter for correcting color deviation and/or a protective glass for protecting a photosensitive element located on the imaging surface.
The 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 and the surface type of each lens, the central thickness of each lens, the on-axis distance between each lens and the like, the volume of the lens can be effectively reduced, the sensitivity of the lens can be reduced, and the imaging quality can be improved. In addition, by introducing a non-rotationally symmetrical aspheric surface, off-axis meridional aberration and sagittal aberration of the imaging lens are corrected, and further image quality improvement can be obtained.
In the embodiment of the present application, an aspherical mirror surface is often used as the mirror surface of each 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 during imaging can be eliminated as much as possible, thereby improving the imaging quality. Alternatively, at least one of the object-side surface and the 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 may be an aspherical surface.
However, it will be appreciated by those skilled in the art that the number of lenses constituting the imaging lens can 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 imaging lens is not limited to include eight lenses. The imaging lens may also include other numbers of lenses, if desired.
Specific examples of an imaging lens applicable to the above-described embodiments are further described below with reference to the drawings.
Example 1
An imaging lens according to embodiment 1 of the present application is described below with reference to fig. 1 and 2. Fig. 1 shows a schematic configuration diagram of an imaging lens according to embodiment 1 of the present application.
As shown in fig. 1, an imaging lens according to an exemplary embodiment of the present application, in order from an object side to an image side along an optical axis, includes: the lens system comprises 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, a filter E9 and an imaging surface S19. In the optical lens of the present embodiment, a stop STO may be provided between the third lens E3 and the fourth lens E4 to improve the imaging quality.
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 positive power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has positive power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has negative power, and has a convex object-side surface S7 and a concave 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 concave 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 E8 has an object side S17 and an image side S18. The light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging surface S19.
Table 1 shows the surface type, the radius of curvature X, the radius of curvature Y, the thickness, the refractive index, the dispersion coefficient, the conic coefficient X, and the conic coefficient Y of each lens of the imaging lens of example 1, wherein the units of the radius of curvature X, the radius of curvature Y, and the thickness are all millimeters (mm).
TABLE 1
As can be seen from table 1, the object-side surface and the image-side surface of any one of the first lens element E1, the second lens element E2, the third lens element E3, the fourth lens element E4, the fifth lens element E5, the sixth lens element E6, and the seventh lens element E7 are aspheric. In the present embodiment, the profile x of each aspheric lens can be defined using, but not limited to, the following aspheric 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 the conic coefficient (given in table 1); ai is the correction coefficient of the i-th order of the aspherical surface. Table 2 below shows the high-order coefficient A of each of the aspherical mirror surfaces S1 to S14 used in example 14、A6、A8、A10、A12、A14、A16、A18And A20。
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | -7.5227E-02 | -5.2385E-04 | 4.4338E-03 | 8.5003E-04 | 2.8317E-05 | -1.2455E-04 | -2.9547E-05 | -3.0647E-05 | 0.0000E+00 |
| S2 | -1.1675E-02 | 5.2605E-03 | 3.7336E-03 | -1.5992E-03 | 9.9535E-04 | -6.4572E-04 | 1.5519E-04 | -2.4704E-05 | 0.0000E+00 |
| S3 | 5.3323E-03 | -3.8611E-03 | 1.3376E-03 | -9.8837E-04 | 1.3165E-03 | -5.3326E-04 | 2.3342E-05 | 2.1984E-05 | 0.0000E+00 |
| S4 | -1.0240E-03 | 9.9096E-04 | 4.0371E-04 | 2.1017E-04 | 6.3308E-04 | -2.0528E-04 | -7.0461E-05 | 2.9314E-05 | 0.0000E+00 |
| S5 | -2.6054E-02 | -9.1866E-03 | -9.6545E-04 | -4.4317E-04 | 1.1151E-04 | -6.6300E-05 | -7.8269E-05 | -1.7958E-05 | 0.0000E+00 |
| S6 | -2.1702E-02 | -1.0584E-02 | 1.7576E-03 | -3.1331E-04 | -3.3136E-05 | 1.4397E-05 | -2.2186E-05 | -1.8207E-06 | 0.0000E+00 |
| S7 | 9.5056E-04 | 1.4236E-04 | 1.0271E-03 | -2.2414E-04 | 1.2183E-05 | 6.2494E-06 | -7.5495E-06 | 1.8350E-06 | 0.0000E+00 |
| S8 | 1.0030E-03 | 3.7472E-03 | 4.2421E-04 | -6.6212E-05 | 3.0855E-06 | 4.0967E-06 | -4.9282E-06 | 6.7332E-07 | 0.0000E+00 |
| S9 | -4.7253E-03 | 7.3187E-03 | 2.4944E-03 | 4.8886E-04 | 1.5052E-04 | 6.7510E-06 | -1.7480E-05 | -1.0162E-05 | 0.0000E+00 |
| S10 | -1.5320E-01 | 3.5029E-03 | 3.7228E-03 | 1.6769E-03 | 7.5556E-04 | 3.9073E-04 | 1.1074E-04 | 4.6711E-05 | 0.0000E+00 |
| S11 | -2.5374E-01 | 4.9781E-03 | 6.8859E-03 | 1.7802E-03 | 1.1347E-03 | 5.5114E-04 | 7.8864E-05 | -6.1978E-05 | 0.0000E+00 |
| S12 | -8.0423E-02 | 2.0954E-02 | 1.0636E-02 | 4.4302E-04 | 1.6870E-03 | 2.5029E-04 | -1.7983E-04 | -2.8924E-04 | 0.0000E+00 |
| S13 | -5.5801E-02 | -2.0544E-02 | 3.0768E-02 | -6.0008E-03 | 5.1988E-03 | -7.2722E-04 | 7.1848E-04 | -1.1252E-03 | 0.0000E+00 |
| S14 | -5.5991E-01 | 2.0277E-03 | 1.2676E-02 | -9.9540E-03 | 2.4575E-03 | -8.9761E-04 | -1.5923E-04 | -9.8838E-04 | 0.0000E+00 |
TABLE 2
As can also be seen from table 1, the object-side surface S15 and the image-side surface S16 of the eighth lens element E8 are non-rotationally symmetric aspheric surfaces (i.e., AAS surfaces), and the surface type of the non-rotationally symmetric aspheric surfaces can be defined by, but is not limited to, the following non-rotationally symmetric aspheric surface formula:
wherein z is the rise of a plane parallel to the z-axis direction; cx and Cy are curvatures of the vertexes of the X, Y-direction surfaces respectively; kx and Ky are respectively X, Y direction conical coefficients; AR, BR, CR, DR, ER, FR, GR, HR, JR are respectively 4 th, 6 th, 8 th, 10 th, 12 th, 14 th, 16 th, 18 th, 20 th order coefficients in the aspheric surface rotational symmetry component; AP, BP, CP, DP, EP, FP, GP, HP and JP are respectively coefficients of 4 th order, 6 th order, 8 th order, 10 th order, 12 th order, 14 th order, 16 th order, 18 th order and 20 th order in the aspheric surface non-rotational symmetric component.
Table 3 below gives the AR, AP, BR, BP, CR, CP, DR, DP, ER, EP coefficients that can be used for the non-rotationally symmetric aspherical surfaces S15 and S16 in example 1.
TABLE 3
The following table 4 gives the FR, FP, GR, GP, HR, HP, JR, JP coefficients of the non-rotationally symmetric aspherical surfaces S15 and S16 that can be used in example 1.
TABLE 4
Table 5 gives the effective focal lengths f1 to f8 of the respective lenses, the effective focal length fx of the imaging lens in the X-axis direction, the effective focal length fy of the imaging lens in the Y-axis direction, the total optical length TTL of the imaging lens (i.e., the distance on the optical axis from the object-side surface S1 to the imaging surface S19 of the first lens E1), and the maximum half field angle Semi-FOV in embodiment 1.
| f1(mm) | 5.34 | f7(mm) | -5.05 |
| f2(mm) | 181.32 | f8(mm) | -11.26 |
| f3(mm) | 7.55 | fx(mm) | 5.84 |
| f4(mm) | -3.47 | fy(mm) | 7.30 |
| f5(mm) | 8.11 | TTL(mm) | 7.10 |
| f6(mm) | 47.24 | Semi-FOV(°) | 23.3 |
TABLE 5
The imaging lens in embodiment 1 satisfies:
TTL/(fx + fy) × 2 is 1.08, where TTL is a distance on the optical axis from the center of the object-side surface of the first lens to the imaging surface of the imaging lens, fx is an effective focal length in the X-axis direction of the imaging lens, and fy is an effective focal length in the Y-axis direction of the imaging lens.
And fx/fy is 0.80, wherein fx is the effective focal length of the imaging lens in the X-axis direction, and fy is the effective focal length of the imaging lens in the Y-axis direction.
And ImgH/fy is 0.42, wherein ImgH is half of the diagonal length of the effective pixel area on the imaging plane, and fy is the effective focal length of the imaging lens in the Y-axis direction.
f3/(f1+ f5) ═ 0.56, where f3 is the effective focal length of the third lens, f1 is the effective focal length of the first lens, and f5 is the effective focal length of the fifth lens.
f4/R8 is-1.73, wherein f4 is the effective focal length of the fourth lens, and R8 is the curvature radius of the image side surface of the fourth lens.
R5/R1 is 1.23, where R5 is the radius of curvature of the object-side surface of the third lens and R1 is the radius of curvature of the object-side surface of the first lens.
(R12+ R13-R16)/R10 is 0.58, where R12 is the radius of curvature of the image-side surface of the sixth lens element, R13 is the radius of curvature of the object-side surface of the seventh lens element, R16 is the radius of curvature of the image-side surface of the eighth lens element, and R10 is the radius of curvature of the image-side surface of the fifth lens element.
CT1/(CT2+ CT3+ CT4) ═ 0.87, where CT1 is the center thickness of the first lens, CT2 is the center thickness of the second lens, CT3 is the center thickness of the third lens, and CT4 is the center thickness of the fourth lens.
T45/(T56+ T67) ═ 0.75, where T45 is the air space between the fourth lens and the fifth lens, T56 is the air space between the fifth lens and the sixth lens, and T67 is the air space between the sixth lens and the seventh lens.
And SL/TTL is 0.77, wherein SL is the distance between the diaphragm and the imaging surface of the imaging lens on the optical axis, and TTL is the distance between the center of the object side surface of the first lens and the imaging surface of the imaging lens on the optical axis.
(DT21+ DT22)/ImgH <1.01, wherein DT21 is the effective half aperture of the object side surface of the second lens, DT22 is the effective half aperture of the image side surface of the second lens, and ImgH is half the diagonal length of the effective pixel area on the imaging plane.
(ET5+ ET6)/(CT5+ CT6) ═ 0.84, where ET5 is the edge thickness of the fifth lens, ET6 is the edge thickness of the sixth lens, CT5 is the center thickness of the fifth lens, and CT6 is the center thickness of the sixth lens.
Fig. 2 shows the magnitude of the RMS spot diameter at different angles of field in the first quadrant for the imaging lens of embodiment 1. As can be seen from fig. 2, embodiment 1 provides a high-pixel, long-focus eight-lens imaging lens, which can better meet the use requirements of various special scenes.
Example 2
An imaging lens according to embodiment 2 of the present application is described below with reference to fig. 3 and 4. 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 configuration diagram of an imaging lens according to embodiment 2 of the present application.
As shown in fig. 3, an imaging lens according to an exemplary embodiment of the present application, in order from an object side to an image side along an optical axis, includes: the lens system comprises 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, a filter E9 and an imaging surface S19. In the optical lens of the present embodiment, a stop STO may be provided between the third lens E3 and the fourth lens E4 to improve the imaging quality.
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 positive power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has negative power, and has a convex object-side surface S7 and a concave 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 concave 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 E8 has an object side S17 and an image side S18. The light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging surface S19.
Table 6 shows the surface type, the radius of curvature X, the radius of curvature Y, the thickness, the refractive index, the dispersion coefficient, the conic coefficient X, and the conic coefficient Y of each lens of the imaging lens of example 2, wherein the units of the radius of curvature X, the radius of curvature Y, and the thickness are all millimeters (mm).
TABLE 6
As can be seen from table 6, in embodiment 2, the object-side surface and the image-side surface of any one of the first lens E1, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, the seventh lens E7, and the eighth lens E8 are aspheric; the object-side surface S3 and the image-side surface S4 of the second lens E2 are aspheric.
Table 7 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. Tables 8 and 9 show the rotationally symmetric components and the higher-order coefficients of the rotationally asymmetric components that can be used for the rotationally asymmetric aspherical surfaces S3 and S4 in embodiment 2, wherein the rotationally asymmetric aspherical surface types can be defined by the formula (2) given in embodiment 1 above.
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | -1.0123E-01 | 8.2027E-03 | 6.3512E-03 | -1.8586E-04 | -1.9419E-03 | -1.0395E-03 | -3.2474E-04 | -7.8586E-05 | 0.0000E+00 |
| S2 | 7.2272E-04 | 1.1445E-02 | 2.7577E-03 | -2.5407E-03 | -1.3598E-04 | -6.2646E-04 | 7.6884E-04 | -8.1383E-05 | 0.0000E+00 |
| S5 | -3.6637E-02 | -1.2225E-02 | -2.7084E-03 | 7.8241E-05 | -9.8112E-04 | -4.7326E-04 | -1.8626E-04 | -6.7984E-05 | 0.0000E+00 |
| S6 | -3.3417E-02 | -1.4466E-02 | 2.3464E-03 | -6.4090E-04 | -5.3025E-04 | 1.1364E-04 | -2.5848E-05 | 2.6632E-06 | 0.0000E+00 |
| S7 | 4.1255E-03 | 1.1660E-03 | 1.4658E-03 | -9.2114E-04 | 2.2831E-05 | 1.4523E-04 | 2.4177E-05 | 3.1929E-05 | 0.0000E+00 |
| S8 | 4.3863E-03 | 7.7202E-03 | 4.0597E-04 | -5.1049E-04 | 3.2775E-05 | 9.9120E-05 | 1.5344E-05 | 2.5512E-05 | 0.0000E+00 |
| S9 | -3.3941E-05 | 9.0254E-03 | 3.2192E-03 | 4.6571E-04 | 2.5881E-04 | 2.4681E-05 | -6.1654E-05 | -3.9540E-05 | 0.0000E+00 |
| S10 | -1.4794E-01 | -1.1079E-03 | 4.2891E-03 | 1.5985E-03 | 5.8848E-04 | 4.4624E-04 | 9.3775E-05 | 6.9735E-05 | 0.0000E+00 |
| S11 | -2.5859E-01 | 8.3883E-03 | 1.4171E-02 | 5.3951E-03 | 1.4497E-04 | -2.9233E-05 | -2.8980E-04 | -4.0781E-05 | 0.0000E+00 |
| S12 | -8.2269E-02 | 2.6758E-02 | 6.8484E-03 | 1.7710E-03 | -1.6576E-03 | -4.1643E-04 | -4.4931E-04 | 2.1997E-04 | 0.0000E+00 |
| S13 | -8.3881E-02 | -2.1345E-02 | 1.5021E-02 | -5.1361E-03 | 1.3217E-03 | -9.5313E-05 | 7.4742E-05 | -2.7236E-05 | 0.0000E+00 |
| S14 | -2.9537E-01 | -1.0701E-02 | 3.1360E-02 | -1.3247E-02 | 3.9210E-03 | -1.2363E-03 | -7.7712E-06 | 2.3088E-04 | 0.0000E+00 |
| S15 | -6.7415E-01 | 1.3244E-01 | -2.2768E-02 | 1.0380E-02 | -1.1085E-02 | 1.1006E-02 | -3.4701E-03 | 3.6634E-04 | 0.0000E+00 |
| S16 | -9.9994E-01 | 1.9700E-01 | -5.4994E-02 | 2.3612E-02 | -4.9205E-03 | 1.0897E-02 | -3.8418E-03 | -3.2576E-03 | 0.0000E+00 |
TABLE 7
TABLE 8
| AAS noodle | FR | FP | GR | GP | HR | HP | JR | JP |
| S3 | -5.5274E-03 | 6.4126E-04 | 4.6979E-04 | -6.1102E-04 | -1.1213E-05 | -1.8621E-02 | 1.3551E-20 | 1.7836E+01 |
| S4 | 2.6380E-03 | 3.9190E-03 | -4.3047E-04 | 5.0823E-04 | 1.5550E-09 | 1.5039E+00 | 3.4910E-06 | -7.0995E-02 |
TABLE 9
Table 10 gives the effective focal lengths f1 to f8, the effective focal length fx of the imaging lens in the X-axis direction, the effective focal length fy of the imaging lens in the Y-axis direction, the total optical length TTL of the imaging lens, and the maximum half field angle Semi-FOV of each lens in embodiment 2.
| f1(mm) | 5.38 | f7(mm) | -5.71 |
| f2(mm) | -462.58 | f8(mm) | -3.35 |
| f3(mm) | 7.25 | fx(mm) | 6.31 |
| f4(mm) | -3.51 | fy(mm) | 7.00 |
| f5(mm) | 7.99 | TTL(mm) | 7.10 |
| f6(mm) | 248.41 | Semi-FOV(°) | 19.1 |
Fig. 4 shows the magnitude of the RMS spot diameter at different angles of field in the first quadrant for the imaging lens of example 2. As can be seen from fig. 4, embodiment 2 provides a high-pixel and long-focus eight-lens imaging lens, which can better meet the use requirements of various special scenes.
Example 3
An imaging lens according to embodiment 3 of the present application is described below with reference to fig. 5 and 6. Fig. 5 shows a schematic configuration diagram of an imaging lens according to embodiment 3 of the present application.
As shown in fig. 5, the imaging lens according to the exemplary embodiment of the present application, in order from an object side to an image side along an optical axis, comprises: the lens system comprises 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, a filter E9 and an imaging surface S19. In the optical lens of the present embodiment, a stop STO may be provided between the third lens E3 and the fourth lens E4 to improve the imaging quality.
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 positive power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has positive power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has negative power, and has a convex object-side surface S7 and a concave 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 concave 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 E8 has an object side S17 and an image side S18. The light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging surface S19.
Table 11 shows the surface type, the radius of curvature X, the radius of curvature Y, the thickness, the refractive index, the dispersion coefficient, the conic coefficient X, and the conic coefficient Y of each lens of the imaging lens of example 3, wherein the units of the radius of curvature X, the radius of curvature Y, and the thickness are all millimeters (mm).
TABLE 11
As can be seen from table 11, in example 3, the object-side surface and the image-side surface of any one of the first lens E1, the second lens E2, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, and the seventh lens E7 are aspheric; the object-side surface S15 and the image-side surface S16 of the eighth lens element E8 are aspheric.
Table 12 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. Tables 13 and 14 show the rotationally symmetric components and the higher-order coefficients of the rotationally asymmetric components that can be used for the rotationally asymmetric aspherical surfaces S15 and S16 in embodiment 3, wherein the rotationally asymmetric aspherical surface types can be defined by the formula (2) given in embodiment 1 above.
| Noodle | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | -1.0805E-01 | 1.1622E-02 | 9.4597E-03 | -9.0844E-04 | -2.8446E-03 | -1.4558E-03 | -3.6336E-04 | -5.7108E-05 | 0.0000E+00 |
| S2 | -4.2621E-03 | 1.4709E-02 | 1.0732E-03 | -3.5992E-03 | -1.1973E-04 | -7.4975E-04 | 1.5859E-04 | -1.6822E-04 | 0.0000E+00 |
| S3 | 2.9269E-03 | -3.4060E-03 | 2.7950E-03 | 3.3951E-04 | 2.2230E-03 | -8.2645E-04 | 2.0389E-04 | 3.9289E-05 | 0.0000E+00 |
| S4 | 3.7110E-03 | 6.6540E-03 | 3.3212E-03 | 3.5596E-04 | 1.2145E-04 | -1.4658E-03 | -1.9392E-04 | 2.0876E-05 | 0.0000E+00 |
| S5 | -3.3604E-02 | -1.2894E-02 | -3.1077E-03 | -7.2901E-04 | -2.7627E-04 | -6.1009E-04 | -2.6394E-04 | -6.4141E-05 | 0.0000E+00 |
| S6 | -3.3900E-02 | -1.2717E-02 | 1.6316E-03 | -4.0807E-04 | -2.5483E-04 | 1.7535E-05 | -5.4825E-05 | 1.2919E-05 | 0.0000E+00 |
| S7 | 2.4841E-03 | 8.9177E-04 | 1.5367E-03 | -7.2180E-04 | -3.9131E-05 | 1.0716E-05 | -2.4042E-05 | 1.1506E-05 | 0.0000E+00 |
| S8 | 5.9684E-03 | 6.3267E-03 | 7.5531E-04 | -4.1629E-04 | -2.3276E-05 | 1.8055E-06 | -1.1671E-05 | 1.1310E-05 | 0.0000E+00 |
| S9 | 3.2406E-03 | 8.4608E-03 | 1.9144E-03 | 2.2083E-04 | 1.3852E-04 | 4.3753E-05 | -8.4214E-07 | -1.3422E-05 | 0.0000E+00 |
| S10 | -1.5610E-01 | -5.2635E-04 | 1.9579E-03 | 7.7607E-04 | 3.7409E-04 | 1.5904E-04 | 6.3488E-05 | 1.1600E-05 | 0.0000E+00 |
| S11 | -3.2615E-01 | 6.3575E-03 | 1.4374E-02 | 4.3089E-03 | 1.5818E-03 | -1.0762E-04 | -7.3278E-05 | -1.0358E-04 | 0.0000E+00 |
| S12 | -1.2287E-01 | 1.9171E-02 | 1.9296E-02 | 2.8837E-03 | 2.9264E-03 | -6.1009E-04 | -1.3622E-04 | -2.9634E-04 | 0.0000E+00 |
| S13 | -1.8844E-01 | 4.9741E-03 | 3.5049E-02 | -8.6548E-04 | 7.4074E-03 | -2.0120E-03 | -5.3954E-04 | -7.4703E-04 | 0.0000E+00 |
| S14 | -6.8531E-01 | 4.1153E-02 | 8.7855E-03 | -5.3994E-03 | 3.2353E-03 | -2.0789E-03 | -1.1459E-04 | -2.2491E-04 | 0.0000E+00 |
TABLE 12
Watch 13
| AAS noodle | FR | FP | GR | GP | HR | HP | JR | JP |
| S15 | 2.4675E-04 | 4.4862E-05 | -1.6271E-05 | -3.6361E-05 | 4.5228E-07 | -9.9110E-05 | 4.2886E-11 | 2.3302E-01 |
| S16 | -3.6713E-06 | -4.9151E-04 | 6.4793E-07 | 1.6682E-03 | -1.2298E-08 | -3.0052E-02 | -9.0510E-11 | 2.6002E-01 |
TABLE 14
Table 15 gives the effective focal lengths f1 to f8, the effective focal length fx of the imaging lens in the X-axis direction, the effective focal length fy of the imaging lens in the Y-axis direction, the total optical length TTL of the imaging lens, and the maximum half field angle Semi-FOV of each lens in embodiment 3.
| f1(mm) | 5.29 | f7(mm) | -4.51 |
| f2(mm) | 2190.98 | f8(mm) | -18.06 |
| f3(mm) | 7.78 | fx(mm) | 9.55 |
| f4(mm) | -3.58 | fy(mm) | 7.64 |
| f5(mm) | 7.97 | TTL(mm) | 7.10 |
| f6(mm) | 42.95 | Semi-FOV(°) | 19.1 |
Fig. 6 shows the magnitude of the RMS spot diameter at different angles of field in the first quadrant for the imaging lens of example 3. As can be seen from fig. 6, embodiment 3 provides a high-pixel and long-focus eight-lens imaging lens, which can better meet the use requirements of various special scenes.
Example 4
An imaging lens according to embodiment 4 of the present application is described below with reference to fig. 7 and 8. Fig. 7 shows a schematic configuration diagram of an imaging lens according to embodiment 4 of the present application.
As shown in fig. 7, the imaging lens according to the exemplary embodiment of the present application, in order from an object side to an image side along an optical axis, comprises: the lens system comprises 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, a filter E9 and an imaging surface S19. In the optical lens of the present embodiment, a stop STO may be provided between the third lens E3 and the fourth lens E4 to improve the imaging quality.
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 positive power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has positive power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has negative power, and has a convex object-side surface S7 and a concave 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 concave object-side surface S13 and a convex 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 E8 has an object side S17 and an image side S18. The light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging surface S19.
Table 16 shows the surface type, the radius of curvature X, the radius of curvature Y, the thickness, the refractive index, the dispersion coefficient, the conic coefficient X, and the conic coefficient Y of each lens of the imaging lens of example 4, wherein the units of the radius of curvature X, the radius of curvature Y, and the thickness are all millimeters (mm).
TABLE 16
As can be seen from table 16, in example 4, the object-side surface and the image-side surface of any one of the first lens E1, the second lens E2, the third lens E3, the fourth lens E4, the fifth lens E5, the seventh lens E7, and the eighth lens E8, and the image-side surface S12 of the sixth lens E6 are aspheric; the object-side surface S11 of the sixth lens element E6 is an aspherical surface having a non-rotational symmetry.
Table 17 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. Tables 18 and 19 show the rotationally symmetric component that can be used for the rotationally asymmetric aspheric surface S11 in embodiment 4 and the higher-order coefficient of the rotationally asymmetric component, in which the rotationally asymmetric aspheric surface shape can be defined by the formula (2) given in embodiment 1 above.
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | -6.8524E-02 | -1.3115E-03 | 2.1631E-03 | 7.7963E-04 | 1.6857E-04 | -2.9029E-05 | -1.2808E-05 | -3.1002E-05 | 0.0000E+00 |
| S2 | -1.1322E-02 | 3.4874E-03 | 3.8495E-03 | -1.1240E-03 | 7.6014E-04 | -5.6306E-04 | 1.1521E-04 | -1.2504E-05 | 0.0000E+00 |
| S3 | 4.4541E-03 | -4.0812E-03 | 1.9644E-03 | -9.3455E-04 | 1.3174E-03 | -5.8288E-04 | 1.2014E-05 | 2.8871E-05 | 0.0000E+00 |
| S4 | -4.9656E-04 | 1.7053E-04 | -5.2257E-04 | 5.8291E-04 | 8.0223E-04 | -2.4054E-04 | -6.9639E-05 | 2.3104E-05 | 0.0000E+00 |
| S5 | -3.0308E-02 | -1.1100E-02 | -1.2263E-03 | 3.2902E-04 | 1.6056E-04 | -5.7797E-05 | -8.5914E-05 | -4.1134E-05 | 0.0000E+00 |
| S6 | -2.5645E-02 | -1.1937E-02 | 2.6253E-03 | -4.0957E-04 | -1.3398E-04 | 6.6178E-05 | -4.9088E-05 | -1.3975E-07 | 0.0000E+00 |
| S7 | 1.4222E-03 | -1.2536E-04 | 1.5184E-03 | -5.3461E-04 | 1.6562E-05 | 2.8438E-05 | -1.8582E-05 | 4.7179E-06 | 0.0000E+00 |
| S8 | 2.0781E-03 | 4.5794E-03 | 5.3381E-04 | -2.8698E-04 | 2.4525E-06 | 1.3995E-05 | -1.7779E-05 | 8.1366E-06 | 0.0000E+00 |
| S9 | 7.0370E-04 | 1.1967E-02 | 3.3729E-03 | 3.1076E-04 | 1.3088E-04 | -1.0237E-06 | -1.0408E-05 | -1.5998E-05 | 0.0000E+00 |
| S10 | -1.6178E-01 | 5.7394E-03 | 6.3329E-03 | 1.9161E-03 | 8.1344E-04 | 3.6171E-04 | 1.3602E-04 | 4.1022E-05 | 0.0000E+00 |
| S12 | -1.1346E-01 | 2.4274E-02 | 7.4865E-03 | 3.1554E-03 | 1.5214E-03 | -3.1979E-04 | -2.9462E-04 | -8.5296E-05 | 0.0000E+00 |
| S13 | -9.2524E-02 | 1.5003E-02 | 3.3055E-02 | -3.7240E-03 | 6.2957E-03 | -3.8506E-04 | -2.2415E-04 | -1.4010E-04 | 0.0000E+00 |
| S14 | -3.4016E-01 | -4.6619E-03 | 3.8978E-02 | -1.0054E-02 | 3.5079E-03 | 2.7849E-04 | -8.8748E-05 | 6.2858E-04 | 0.0000E+00 |
| S15 | -6.1518E-01 | 1.2601E-01 | -2.6715E-02 | 1.6306E-02 | -1.2545E-02 | 1.3136E-02 | -7.5892E-03 | -9.8116E-05 | 0.0000E+00 |
| S16 | -9.6035E-01 | 1.7914E-01 | -5.3544E-02 | 1.4375E-02 | -8.1044E-03 | 1.0242E-02 | -4.3230E-03 | -3.4767E-03 | 0.0000E+00 |
TABLE 17
| AAS noodle | FR | FP | GR | GP | HR | HP | JR | JP |
| S11 | -3.0984E-02 | -5.5579E-03 | 1.4860E-02 | 4.4122E-03 | -2.4170E-03 | 1.0003E-02 | 4.0598E-06 | -3.8789E-01 |
Table 20 gives the effective focal lengths f1 to f8, the effective focal length fx of the imaging lens in the X-axis direction, the effective focal length fy of the imaging lens in the Y-axis direction, the total optical length TTL of the imaging lens, and the maximum half field angle Semi-FOV of each lens in embodiment 4.
Fig. 8 shows the magnitude of the RMS spot diameter at different angles of field in the first quadrant for the imaging lens of example 4. As can be seen from fig. 8, embodiment 4 provides a high-pixel and long-focus eight-lens imaging lens, which can better meet the use requirements of various special scenes.
Example 5
An imaging lens according to embodiment 5 of the present application is described below with reference to fig. 9 and 10. Fig. 9 shows a schematic configuration diagram of an imaging lens according to embodiment 5 of the present application.
As shown in fig. 9, the imaging lens according to the exemplary embodiment of the present application, in order from an object side to an image side along an optical axis, comprises: the lens system comprises 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, a filter E9 and an imaging surface S19. In the optical lens of the present embodiment, a stop STO may be provided between the third lens E3 and the fourth lens E4 to improve the imaging quality.
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 positive power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has negative power, and has a concave object-side surface S7 and a concave 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 concave object-side surface S13 and a convex 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 E8 has an object side S17 and an image side S18. The light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging surface S19.
Table 21 shows the surface type, the radius of curvature X, the radius of curvature Y, the thickness, the refractive index, the dispersion coefficient, the conic coefficient X, and the conic coefficient Y of each lens of the imaging lens of example 5, where the units of the radius of curvature X, the radius of curvature Y, and the thickness are all millimeters (mm).
TABLE 21
As can be seen from table 21, in example 5, the object-side surface and the image-side surface of any one of the first lens E1, the second lens E2, the third lens E3, the fourth lens E4, the sixth lens E6, the seventh lens E7, and the eighth lens E8, and the image-side surface S10 of the fifth lens E5 are all aspheric; the object-side surface S9 of the fifth lens element E5 is an aspherical surface having a non-rotational symmetry.
Table 22 shows high-order term coefficients that can be used for each aspherical mirror surface in embodiment 5, wherein each aspherical mirror surface type can be defined by formula (1) given in embodiment 1 above. Tables 23 and 24 show the rotationally symmetric component that can be used for the rotationally asymmetric aspheric surface S9 in embodiment 5 and the higher-order coefficient of the rotationally asymmetric component, in which the rotationally asymmetric aspheric surface shape can be defined by the formula (2) given in embodiment 1 above.
TABLE 22
TABLE 23
| AAS noodle | FR | FP | GR | GP | HR | HP | JR | JP |
| S9 | -7.9358E-02 | 2.8496E-03 | 3.3774E-02 | -9.3143E-03 | -5.3033E-03 | -1.4169E-02 | -1.4802E-06 | -7.6640E-01 |
Watch 24
Table 25 gives the effective focal lengths f1 to f8, the effective focal length fx of the imaging lens in the X-axis direction, the effective focal length fy of the imaging lens in the Y-axis direction, the total optical length TTL of the imaging lens, and the maximum half field angle Semi-FOV of each lens in example 5.
| f1(mm) | 5.31 | f7(mm) | -6.17 |
| f2(mm) | -7699.85 | f8(mm) | -8.64 |
| f3(mm) | 7.33 | fx(mm) | 7.61 |
| f4(mm) | -3.44 | fy(mm) | 7.15 |
| f5(mm) | 7.97 | TTL(mm) | 7.10 |
| f6(mm) | 30.31 | Semi-FOV(°) | 19.1 |
TABLE 25
Fig. 10 shows the magnitude of the RMS spot diameter at different angles of field in the first quadrant for the imaging lens of example 5. As can be seen from fig. 10, embodiment 5 provides a high-pixel and long-focus eight-lens imaging lens, which can better meet the use requirements of various special scenes.
Example 6
An imaging lens according to embodiment 6 of the present application is described below with reference to fig. 11 and 12. Fig. 11 shows a schematic configuration diagram of an imaging lens according to embodiment 6 of the present application.
As shown in fig. 11, the imaging lens according to the exemplary embodiment of the present application, in order from an object side to an image side along an optical axis, comprises: the lens system comprises 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, a filter E9 and an imaging surface S19. In the optical lens of the present embodiment, a stop STO may be provided between the third lens E3 and the fourth lens E4 to improve the imaging quality.
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 positive power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has negative power, and has a convex object-side surface S7 and a concave 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 concave 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 E8 has an object side S17 and an image side S18. The light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging surface S19.
Table 26 shows the surface type, radius of curvature X, radius of curvature Y, thickness, refractive index, dispersion coefficient, conic coefficient X, and conic coefficient Y of each lens of the imaging lens of example 6, where the units of radius of curvature X, radius of curvature Y, and thickness are all millimeters (mm).
Watch 26
As can be seen from table 26, in example 6, the object-side surface and the image-side surface of any one of the second lens element E2, the third lens element E3, the fourth lens element E4, the fifth lens element E5, the sixth lens element E6, the seventh lens element E7, and the eighth lens element E8 are aspheric; the object-side surfaces S1 and S2 of the first lens E1 are aspheric surfaces that are not rotationally symmetric.
Table 27 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. Tables 28 and 29 show the rotationally symmetric components and the higher-order coefficients of the rotationally asymmetric components that can be used for the rotationally asymmetric aspherical surfaces S1 and S2 in embodiment 6, in which the rotationally asymmetric aspherical surface types can be defined by the formula (2) given in embodiment 1 above.
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S3 | 1.3740E-02 | -3.6547E-03 | 4.3327E-04 | -2.1565E-03 | 1.4299E-03 | -5.3296E-04 | -2.3274E-04 | -8.1306E-05 | 0.0000E+00 |
| S4 | -8.0081E-03 | -6.4718E-04 | 1.1136E-03 | -2.6904E-04 | 1.4502E-03 | -7.8126E-05 | -3.1968E-04 | -5.7859E-05 | 0.0000E+00 |
| S5 | -1.6282E-02 | -2.1197E-03 | -1.9557E-04 | 2.0938E-04 | 6.2396E-04 | 2.0782E-04 | -1.3879E-04 | -9.0113E-05 | 0.0000E+00 |
| S6 | -3.3745E-02 | -7.3350E-03 | 2.5538E-03 | -4.8809E-04 | -1.6870E-04 | 2.2369E-04 | -8.0326E-05 | -1.4342E-05 | 0.0000E+00 |
| S7 | -5.3249E-03 | 7.8307E-04 | 2.0038E-03 | -7.7477E-04 | -4.3215E-05 | 9.9541E-05 | -5.4004E-05 | 1.1504E-05 | 0.0000E+00 |
| S8 | 7.0779E-03 | 5.8238E-03 | 7.1608E-04 | -3.9018E-04 | -1.9224E-05 | 4.2439E-05 | -3.8027E-05 | 1.6597E-05 | 0.0000E+00 |
| S9 | -1.0620E-02 | 4.2517E-03 | 7.1249E-04 | 2.4296E-05 | 1.4603E-04 | 5.7628E-05 | 9.4536E-06 | -1.3327E-05 | 0.0000E+00 |
| S10 | -1.6703E-01 | -6.0516E-03 | 1.0552E-05 | 4.2603E-04 | 2.0018E-04 | 1.5305E-04 | 1.5198E-05 | 2.1855E-05 | 0.0000E+00 |
| S11 | -2.5838E-01 | 2.6429E-03 | 5.8555E-03 | 2.4511E-03 | 8.9247E-04 | 9.2680E-05 | 3.8704E-05 | -3.3473E-05 | 0.0000E+00 |
| S12 | -1.0343E-01 | 3.1931E-02 | 1.0810E-02 | 2.1213E-03 | 1.5477E-03 | -5.6869E-04 | -3.3696E-06 | -1.9669E-04 | 0.0000E+00 |
| S13 | -2.1202E-01 | 1.3769E-02 | 4.8478E-02 | -9.0050E-03 | 1.2869E-02 | -6.5346E-03 | -3.3914E-04 | -1.4431E-03 | 0.0000E+00 |
| S14 | -8.0064E-01 | 3.4231E-02 | 3.6274E-02 | -2.0783E-02 | 9.4422E-03 | -7.5934E-03 | -4.3566E-04 | -1.6927E-03 | 0.0000E+00 |
| S15 | -8.2072E-01 | 2.3094E-01 | -3.9681E-02 | 5.3160E-03 | -1.0503E-02 | 1.0971E-02 | -9.2056E-03 | 9.1752E-04 | 0.0000E+00 |
| S16 | -1.0117E+00 | 2.5141E-01 | -7.3757E-02 | 2.3617E-02 | -1.4267E-02 | 9.4886E-03 | -4.9349E-03 | -1.7190E-03 | 0.0000E+00 |
Watch 27
Watch 28
| AAS noodle | FR | FP | GR | GP | HR | HP | JR | JP |
| S1 | -5.1517E-04 | 5.9957E-03 | 1.2286E-04 | 7.8195E-04 | -1.1667E-05 | -1.4935E-02 | 2.0378E-09 | -3.5365E-01 |
| S2 | -6.9030E-03 | -1.3514E-04 | 7.8295E-04 | -1.3145E-03 | -3.8439E-05 | -5.2747E-04 | -4.5501E-11 | -1.0087E+00 |
Watch 29
Table 30 gives the effective focal lengths f1 to f8, the effective focal length fx of the imaging lens in the X-axis direction, the effective focal length fy of the imaging lens in the Y-axis direction, the total optical length TTL of the imaging lens, and the maximum half field angle Semi-FOV of each lens in example 6.
| f1(mm) | 5.30 | f7(mm) | -5.17 |
| f2(mm) | -529.88 | f8(mm) | -2.83 |
| f3(mm) | 8.43 | fx(mm) | 6.19 |
| f4(mm) | -3.78 | fy(mm) | 7.00 |
| f5(mm) | 8.21 | TTL(mm) | 7.10 |
| f6(mm) | -270.47 | Semi-FOV(°) | 19.1 |
Fig. 12 shows the magnitude of the RMS spot diameter at different angles of field in the first quadrant for the imaging lens of example 6. As can be seen from fig. 12, embodiment 6 provides a high-pixel and long-focus eight-lens imaging lens, which can better meet the use requirements of various special scenes.
Example 7
An imaging lens according to embodiment 7 of the present application is described below with reference to fig. 13 and 14. Fig. 13 shows a schematic configuration diagram of an imaging lens according to embodiment 7 of the present application.
As shown in fig. 13, the imaging lens according to the exemplary embodiment of the present application, in order from an object side to an image side along an optical axis, comprises: the lens system comprises 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, a filter E9 and an imaging surface S19. In the optical lens of the present embodiment, a stop STO may be provided between the third lens E3 and the fourth lens E4 to improve the imaging quality.
The first lens element E1 has positive power, and has a convex object-side surface S1 and a convex 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 positive power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has negative power, and has a convex object-side surface S7 and a concave 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 concave object-side surface S13 and a convex 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 E8 has an object side S17 and an image side S18. The light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging surface S19.
Table 31 shows the surface type, the radius of curvature X, the radius of curvature Y, the thickness, the refractive index, the dispersion coefficient, the conic coefficient X, and the conic coefficient Y of each lens of the imaging lens of example 7, wherein the units of the radius of curvature X, the radius of curvature Y, and the thickness are all millimeters (mm).
Watch 31
As can be seen from table 31, in example 7, the first lens E1, the second lens E2, the third lens E3, the fifth lens E5, the sixth lens E6, the seventh lens E7, and the eighth lens E8 are all aspheric; the object-side surface S7 and the image-side surface S8 of the fourth lens element E4 are aspheric.
Table 32 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. Tables 33 and 34 show the rotationally symmetric components and the higher-order coefficients of the rotationally asymmetric components that can be used for the rotationally asymmetric aspherical surfaces S7 and S8 in embodiment 7, in which the rotationally asymmetric aspherical surface types can be defined by the formula (2) given in embodiment 1 above.
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | -7.6161E-02 | 3.6521E-04 | 3.4016E-03 | 1.9491E-03 | 4.9740E-04 | 1.3371E-04 | -4.8928E-05 | -5.3598E-05 | 0.0000E+00 |
| S2 | -1.0309E-02 | 3.8938E-03 | 2.5338E-03 | 1.4057E-04 | 1.0490E-03 | -5.0803E-04 | -5.1607E-05 | -1.7492E-05 | 0.0000E+00 |
| S3 | -1.3787E-03 | -5.8853E-03 | 2.3472E-03 | -1.1993E-03 | 1.8774E-03 | -7.4429E-04 | -3.5519E-05 | 7.2083E-06 | 0.0000E+00 |
| S4 | -4.9329E-03 | 3.5938E-04 | 1.8118E-03 | 9.0240E-04 | 8.5464E-04 | -3.2488E-04 | -5.4097E-05 | 7.5096E-06 | 0.0000E+00 |
| S5 | -3.6076E-02 | -7.4145E-03 | -1.7599E-03 | 1.4683E-03 | -2.1352E-04 | -9.6297E-05 | -1.0134E-04 | -4.2600E-05 | 0.0000E+00 |
| S6 | -3.1732E-02 | -1.3088E-02 | 1.8783E-03 | -5.7275E-05 | -1.4796E-04 | 2.3514E-05 | -2.2527E-05 | -7.9602E-06 | 0.0000E+00 |
| S9 | -1.4250E-02 | 5.1549E-03 | 1.4661E-03 | 4.1514E-04 | 1.5193E-04 | 3.4071E-05 | -2.3670E-05 | -5.7687E-06 | 0.0000E+00 |
| S10 | -1.4226E-01 | 3.4770E-04 | 2.6648E-03 | 1.3314E-03 | 5.7299E-04 | 1.9234E-04 | 5.8477E-05 | 1.3053E-05 | 0.0000E+00 |
| S11 | -2.4486E-01 | 3.0946E-03 | 6.3391E-03 | 2.8591E-03 | 9.9739E-04 | 5.2793E-05 | -5.8819E-05 | -3.1638E-05 | 0.0000E+00 |
| S12 | -9.8183E-02 | 3.3841E-02 | 1.0827E-02 | 6.9071E-04 | 1.6281E-03 | -1.8149E-04 | 1.1695E-04 | -1.6755E-04 | 0.0000E+00 |
| S13 | -1.6075E-01 | -1.8741E-02 | 3.5432E-02 | -1.5502E-02 | 8.7803E-03 | -7.4604E-04 | 1.5983E-03 | -4.8721E-04 | 0.0000E+00 |
| S14 | -3.7413E-01 | 2.0148E-02 | 2.5932E-02 | -2.1672E-02 | 8.8771E-03 | -2.8968E-03 | 3.3263E-04 | -1.1548E-03 | 0.0000E+00 |
| S15 | -9.2564E-01 | 2.7443E-01 | -6.2865E-02 | 1.8673E-02 | -5.6985E-03 | 6.5971E-03 | -9.4062E-03 | 3.0699E-03 | 0.0000E+00 |
| S16 | -1.1978E+00 | 1.6850E-01 | -4.8627E-02 | 1.5788E-02 | -7.2729E-03 | 1.0552E-02 | -3.3361E-03 | -6.7806E-04 | 0.0000E+00 |
Watch 32
Watch 33
| AAS noodle | FR | FP | GR | GP | HR | HP | JR | JP |
| S7 | -8.2836E-02 | 6.1435E-03 | 3.3894E-02 | -4.3031E-03 | -6.3332E-03 | -3.0215E-02 | 1.9983E-04 | 2.9511E-02 |
| S8 | -8.8711E-02 | -6.3630E-03 | 3.4548E-02 | 4.0154E-04 | -5.8125E-03 | 3.5584E-02 | 2.7455E-11 | 4.5051E+00 |
Watch 34
Table 35 gives the effective focal lengths f1 to f8, the effective focal length fx of the imaging lens in the X-axis direction, the effective focal length fy of the imaging lens in the Y-axis direction, the total optical length TTL of the imaging lens, and the maximum half field angle Semi-FOV of each lens in example 7.
| f1(mm) | 5.46 | f7(mm) | -7.28 |
| f2(mm) | -306.17 | f8(mm) | -7.14 |
| f3(mm) | 7.58 | fx(mm) | 7.03 |
| f4(mm) | -3.66 | fy(mm) | 7.78 |
| f5(mm) | 7.79 | TTL(mm) | 7.10 |
| f6(mm) | -2331.13 | Semi-FOV(°) | 19.6 |
Watch 35
Fig. 14 shows the magnitude of the RMS spot diameter at different angles of field in the first quadrant for the imaging lens of example 7. As can be seen from fig. 14, embodiment 7 provides a high-pixel and long-focus eight-lens imaging lens, which can better meet the use requirements of various special scenes.
Example 8
An imaging lens according to embodiment 8 of the present application is described below with reference to fig. 15 and 16. Fig. 15 shows a schematic configuration diagram of an imaging lens according to embodiment 8 of the present application.
As shown in fig. 15, the imaging lens according to the exemplary embodiment of the present application, in order from an object side to an image side along an optical axis, comprises: the lens system comprises 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, a filter E9 and an imaging surface S19. In the optical lens of the present embodiment, a stop STO may be provided between the third lens E3 and the fourth lens E4 to improve the imaging quality.
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 positive power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has negative power, and has a convex object-side surface S7 and a concave 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 convex object-side surface S11 and a convex image-side surface S12. The seventh lens element E7 has negative power, and has a concave 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 concave image-side surface S16. Filter E8 has an object side S17 and an image side S18. The light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging surface S19.
Table 36 shows the surface type, radius of curvature X, radius of curvature Y, thickness, refractive index, dispersion coefficient, conic coefficient X, and conic coefficient Y of each lens of the imaging lens of example 8, where the units of radius of curvature X, radius of curvature Y, and thickness are all millimeters (mm).
Watch 36
As can be seen from table 36, in example 8, the object-side surface and the image-side surface of any one of the second lens E2, the third lens E3, the fourth lens E4, the sixth lens E6, the seventh lens E7, and the eighth lens E8, and the image-side surface S2 of the first lens E1 and the image-side surface S10 of the fifth lens E5 are aspheric; the object-side surface S1 of the first lens E1 and the object-side surface S9 of the fifth lens E5 are aspheric surfaces that are not rotationally symmetric.
Table 37 shows high-order term coefficients that can be used for each aspherical mirror surface in embodiment 8, wherein each aspherical mirror surface type can be defined by the formula (1) given in embodiment 1 above. Tables 38 and 39 show the rotationally symmetric components and the higher-order coefficients of the rotationally asymmetric components that can be used for the rotationally asymmetric aspherical surfaces S1 and S9 in embodiment 8, wherein the rotationally asymmetric aspherical surface types can be defined by the formula (2) given in embodiment 1 above.
Watch 37
Watch 38
| AAS noodle | FR | FP | GR | GP | HR | HP | JR | JP |
| S1 | -1.1563E-04 | 1.7734E-03 | 3.2727E-05 | 6.9880E-04 | -2.8806E-06 | -3.8685E-03 | -3.3483E-08 | 2.0835E-02 |
| S9 | -4.0886E-03 | 3.6143E-02 | 9.9404E-04 | 4.9923E-02 | 1.1808E-06 | -1.0177E+00 | -6.1452E-07 | -9.3540E-01 |
Watch 39
Table 40 gives the effective focal lengths f1 to f8, the effective focal length fx of the imaging lens in the X-axis direction, the effective focal length fy of the imaging lens in the Y-axis direction, the total optical length TTL of the imaging lens, and the maximum half field angle Semi-FOV of each lens in embodiment 8.
| f1(mm) | 5.25 | f7(mm) | -4.97 |
| f2(mm) | -595.50 | f8(mm) | 57.05 |
| f3(mm) | 6.09 | fx(mm) | 6.25 |
| f4(mm) | -3.13 | fy(mm) | 7.00 |
| f5(mm) | 130.44 | TTL(mm) | 7.10 |
| f6(mm) | 7.76 | Semi-FOV(°) | 18.8 |
Watch 40
Fig. 16 shows the magnitude of the RMS spot diameter at different angles of field in the first quadrant for the imaging lens of example 8. As can be seen from fig. 16, embodiment 8 provides a high-pixel, long-focus eight-lens imaging lens, which can better meet the use requirements of various special scenes.
Example 9
An imaging lens according to embodiment 9 of the present application is described below with reference to fig. 17 and 18. Fig. 17 shows a schematic configuration diagram of an imaging lens according to embodiment 9 of the present application.
As shown in fig. 17, an imaging lens according to an exemplary embodiment of the present application, in order from an object side to an image side along an optical axis, includes: the lens system comprises 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, a filter E9 and an imaging surface S19. In the optical lens of the present embodiment, a stop STO may be provided between the third lens E3 and the fourth lens E4 to improve the imaging quality.
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 positive power, and has a convex object-side surface S3 and a concave image-side surface S4. The third lens element E3 has positive power, and has a convex object-side surface S5 and a convex image-side surface S6. The fourth lens element E4 has negative power, and has a convex object-side surface S7 and a concave 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 positive power, and has a concave object-side surface S13 and a convex 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 E8 has an object side S17 and an image side S18. The light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging surface S19.
Table 41 shows the surface type, radius of curvature X, radius of curvature Y, thickness, refractive index, dispersion coefficient, conic coefficient X, and conic coefficient Y of each lens of the imaging lens of example 9, where the units of radius of curvature X, radius of curvature Y, and thickness are all millimeters (mm).
Table 41
As can be seen from table 41, in example 9, the object-side surface and the image-side surface of any one of the first lens E1, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, and the eighth lens E8, and the object-side surface S3 of the second lens E2 and the object-side surface S13 of the seventh lens E7 are both aspheric; the image-side surface S4 of the second lens E2 and the image-side surface S14 of the seventh lens E7 are aspheric and non-rotationally symmetric.
Table 42 shows high-order term coefficients that can be used for each aspherical mirror surface in example 9, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above. Tables 43 and 44 show the rotationally symmetric components and the higher-order coefficients of the rotationally asymmetric components that can be used for the rotationally asymmetric aspherical surfaces S4 and S14 in embodiment 9, wherein the rotationally asymmetric aspherical surface types can be defined by the formula (2) given in embodiment 1 above.
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | -7.8022E-02 | -2.0351E-03 | 2.8750E-03 | 1.3787E-03 | 4.7248E-04 | 3.3308E-05 | -2.0716E-05 | -2.9458E-05 | 0.0000E+00 |
| S2 | -1.1195E-02 | 8.5014E-03 | 1.2169E-03 | -1.1973E-04 | 8.8685E-04 | -4.8393E-04 | -9.8544E-06 | 2.0112E-05 | 0.0000E+00 |
| S3 | 8.8291E-03 | 5.3422E-04 | 1.5465E-03 | -1.7637E-03 | 8.6136E-04 | -2.8239E-04 | -8.9051E-05 | 2.1282E-05 | 0.0000E+00 |
| S5 | -1.6419E-02 | -1.7403E-03 | 2.2091E-04 | -3.7831E-04 | 2.0902E-04 | -8.2914E-05 | 4.4434E-05 | -1.9559E-05 | 0.0000E+00 |
| S6 | -2.6302E-02 | -5.2419E-03 | 1.3440E-03 | -5.2582E-04 | 1.2609E-04 | -5.9834E-05 | 3.5865E-05 | -1.4172E-05 | 0.0000E+00 |
| S7 | -4.8002E-03 | 6.4886E-04 | 1.2260E-03 | -5.8582E-04 | 1.4158E-04 | -4.6281E-05 | 1.9124E-05 | -9.8712E-06 | 0.0000E+00 |
| S8 | 4.3268E-03 | 3.3792E-03 | 5.4380E-04 | -2.9351E-04 | 5.5686E-05 | -9.3651E-06 | 4.7621E-08 | 1.2120E-07 | 0.0000E+00 |
| S9 | -1.4839E-02 | -9.1487E-04 | 5.5623E-04 | 5.2159E-05 | 1.8853E-04 | 5.2128E-05 | 1.6027E-05 | -6.3195E-06 | 0.0000E+00 |
| S10 | -1.3913E-01 | -5.5525E-03 | 1.4863E-03 | 6.9982E-04 | 4.5215E-04 | 1.9797E-04 | 5.9591E-05 | 2.5049E-05 | 0.0000E+00 |
| S11 | -2.6839E-01 | 1.2164E-02 | 1.1816E-02 | 2.9371E-03 | 7.8826E-04 | 2.9239E-05 | -8.8333E-05 | -1.5242E-05 | 0.0000E+00 |
| S12 | -1.5599E-01 | 2.9870E-02 | 5.9734E-03 | 1.8932E-04 | 4.4454E-04 | -2.9823E-04 | -2.6629E-04 | -1.8310E-05 | 0.0000E+00 |
| S13 | -7.3082E-02 | 8.4661E-03 | 1.4497E-02 | -6.2670E-04 | 8.0201E-03 | 3.6545E-05 | -1.3708E-04 | -7.3123E-04 | 0.0000E+00 |
| S15 | -6.1144E-01 | 2.0059E-01 | -2.2387E-02 | 4.2903E-03 | -1.3952E-03 | 1.8253E-03 | -1.7415E-03 | 4.0685E-04 | 0.0000E+00 |
| S16 | -7.5675E-01 | 1.4447E-01 | -5.2706E-02 | 1.7528E-02 | -1.4125E-02 | 3.2923E-03 | -2.0187E-03 | 6.1465E-04 | 0.0000E+00 |
Watch 42
Watch 43
| AAS noodle | FR | FP | GR | GP | HR | HP | JR | JP |
| S4 | -4.6223E-03 | -2.2008E-04 | 1.1016E-03 | -5.9182E-04 | -1.1452E-04 | -6.8099E-05 | -3.0170E-09 | -7.1053E-01 |
| S14 | -1.2698E-02 | 3.0368E-05 | 1.8565E-03 | -1.1173E-04 | -1.1131E-04 | -5.1786E-05 | -9.8800E-09 | -1.6918E-02 |
Watch 44
Table 45 gives the effective focal lengths f1 to f8, the effective focal length fx of the imaging lens in the X-axis direction, the effective focal length fy of the imaging lens in the Y-axis direction, the total optical length TTL of the imaging lens, and the maximum half field angle Semi-FOV of each lens in example 9.
| f1(mm) | 5.36 | f7(mm) | 16.54 |
| f2(mm) | 325.53 | f8(mm) | -3.14 |
| f3(mm) | 8.19 | fx(mm) | 6.65 |
| f4(mm) | -3.63 | fy(mm) | 7.52 |
| f5(mm) | 7.75 | TTL(mm) | 7.10 |
| f6(mm) | 231.18 | Semi-FOV(°) | 18.4 |
TABLE 45
Fig. 18 shows the magnitude of the RMS spot diameter at different angles of field in the first quadrant for the imaging lens of example 9. As can be seen from fig. 18, embodiment 9 provides a high-pixel and long-focus eight-lens imaging lens, which can better meet the use requirements of various special scenes.
Example 10
An imaging lens according to embodiment 10 of the present application is described below with reference to fig. 19 and 20. Fig. 19 shows a schematic configuration diagram of an imaging lens according to embodiment 10 of the present application.
As shown in fig. 19, the imaging lens according to the exemplary embodiment of the present application, in order from an object side to an image side along an optical axis, comprises: the lens system comprises 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, a filter E9 and an imaging surface S19. In the optical lens of the present embodiment, a stop STO may be provided between the third lens E3 and the fourth lens E4 to improve the imaging quality.
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 positive power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has negative power, and has a convex object-side surface S7 and a concave 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 concave object-side surface S13 and a convex 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 E8 has an object side S17 and an image side S18. The light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging surface S19.
Table 46 shows the surface type, radius of curvature X, radius of curvature Y, thickness, refractive index, dispersion coefficient, conic coefficient X, and conic coefficient Y of each lens of the imaging lens of example 10, where the units of radius of curvature X, radius of curvature Y, and thickness are all millimeters (mm).
TABLE 46
As can be seen from table 46, in example 10, the object-side surface and the image-side surface of any one of the first lens E1, the second lens E2, the fourth lens E4, the fifth lens E5, the seventh lens E7, and the eighth lens E8, and the object-side surface S6 of the third lens E3 and the object-side surface S11 of the sixth lens E6 are aspheric; the object-side surface S5 of the third lens E3 and the image-side surface S12 of the sixth lens E6 are aspheric and non-rotationally symmetric.
Table 47 shows high-order term coefficients that can be used for each aspherical mirror surface in example 10, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above. Tables 48 and 49 show the rotationally symmetric components and the higher-order coefficients of the rotationally asymmetric components that can be used for the rotationally asymmetric aspherical surfaces S5 and S12 in embodiment 10, wherein the rotationally asymmetric aspherical surface types can be defined by the formula (2) given in embodiment 1 above.
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | -1.1584E-01 | 1.0559E-02 | 4.7510E-03 | 8.5778E-04 | -3.0774E-04 | -7.1501E-04 | -5.3583E-04 | -2.0905E-04 | 0.0000E+00 |
| S2 | 4.7395E-03 | 2.2958E-02 | -2.9047E-03 | 1.5137E-03 | 7.7433E-05 | 2.2623E-04 | -2.4944E-04 | 7.6240E-05 | 0.0000E+00 |
| S3 | 1.1785E-02 | 2.1547E-04 | 4.8136E-04 | -2.0440E-03 | 2.7018E-04 | 6.4931E-04 | 2.8276E-04 | 2.5779E-04 | 0.0000E+00 |
| S4 | -6.4278E-04 | 3.9129E-03 | 3.8887E-03 | -8.9450E-04 | 1.8498E-04 | 2.1337E-04 | 2.8267E-04 | 1.1888E-04 | 0.0000E+00 |
| S6 | -3.7753E-02 | -3.2372E-03 | 6.4924E-04 | -3.0323E-04 | 9.9810E-05 | 4.9423E-05 | -1.1393E-05 | 2.3084E-06 | 0.0000E+00 |
| S7 | -7.0817E-03 | 1.2169E-05 | 5.0137E-04 | -6.3686E-04 | 9.0351E-05 | -3.5007E-05 | -2.6428E-05 | -8.5051E-06 | 0.0000E+00 |
| S8 | 1.3616E-02 | 3.4220E-03 | 1.0173E-04 | -3.2910E-04 | 8.7313E-05 | 2.4131E-05 | 4.8948E-06 | 1.4133E-05 | 0.0000E+00 |
| S9 | -2.3914E-02 | -1.9078E-03 | 1.3209E-03 | 2.6842E-04 | 2.9561E-04 | 8.2292E-05 | 3.1214E-05 | -5.9829E-06 | 0.0000E+00 |
| S10 | -1.4013E-01 | -3.9291E-03 | 3.3640E-03 | 1.1627E-03 | 7.0918E-04 | 3.3464E-04 | 1.2931E-04 | 3.5502E-05 | 0.0000E+00 |
| S11 | -2.0922E-01 | 6.7482E-03 | 9.8121E-03 | 1.2679E-03 | -1.9688E-04 | -3.4792E-04 | -7.3454E-05 | -1.9394E-05 | 0.0000E+00 |
| S13 | -2.8555E-01 | 3.8192E-02 | 2.5744E-02 | -3.6226E-03 | 4.7794E-03 | -2.2273E-03 | -9.0191E-04 | -5.1743E-04 | 0.0000E+00 |
| S14 | -5.0940E-01 | 2.1502E-02 | 2.3092E-02 | -8.3873E-03 | 4.1122E-03 | -1.7943E-04 | 2.8928E-04 | -1.2699E-04 | 0.0000E+00 |
| S15 | -7.4788E-01 | 1.2544E-01 | -1.1626E-02 | 4.8380E-03 | 1.9707E-03 | 2.2185E-03 | -2.0241E-03 | -6.5270E-04 | 0.0000E+00 |
| S16 | -1.3245E+00 | 3.3686E-02 | -8.2303E-02 | -1.0951E-03 | -1.0965E-02 | -3.6276E-04 | -1.2319E-02 | -3.4561E-03 | 0.0000E+00 |
Watch 47
Watch 48
| AAS noodle | FR | FP | GR | GP | HR | HP | JR | JP |
| S5 | -1.7700E-02 | -3.6859E-04 | 4.7372E-03 | 4.5919E-04 | -5.3286E-04 | 1.7871E-03 | -3.7869E-06 | 4.1690E-02 |
| S12 | -2.1204E-03 | 8.2071E-04 | 5.6700E-04 | 1.0108E-03 | -6.8430E-05 | -1.8150E-03 | 1.6864E-11 | -3.2143E+00 |
Watch 49
Table 50 shows the effective focal lengths f1 to f8, the effective focal length fx of the imaging lens in the X-axis direction, the effective focal length fy of the imaging lens in the Y-axis direction, the total optical length TTL of the imaging lens, and the maximum half field angle Semi-FOV of each lens in example 10.
| f1(mm) | 5.31 | f7(mm) | -8.56 |
| f2(mm) | -5118.55 | f8(mm) | -20.13 |
| f3(mm) | 9.56 | fx(mm) | 7.61 |
| f4(mm) | -3.90 | fy(mm) | 7.00 |
| f5(mm) | 6.80 | TTL(mm) | 7.10 |
| f6(mm) | -31.05 | Semi-FOV(°) | 19.2 |
Watch 50
Fig. 20 shows the magnitude of the RMS spot diameter at different angles of field in the first quadrant for the imaging lens of example 10. As can be seen from fig. 20, embodiment 10 provides a high-pixel, long-focus eight-lens imaging lens, which can better meet the use requirements of various special scenes.
Example 11
An imaging lens according to embodiment 11 of the present application is described below with reference to fig. 21 and 22. Fig. 21 is a schematic structural view showing an imaging lens according to embodiment 11 of the present application.
As shown in fig. 21, the imaging lens according to the exemplary embodiment of the present application, in order from an object side to an image side along an optical axis, comprises: the lens system comprises 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, a filter E9 and an imaging surface S19. In the optical lens of the present embodiment, a stop STO may be provided between the third lens E3 and the fourth lens E4 to improve the imaging quality.
The first lens element E1 has positive power, and has a convex object-side surface S1 and a convex image-side surface S2. The second lens element E2 has negative power, and has a concave object-side surface S3 and a concave image-side surface S4. The third lens element E3 has positive power, and has a convex object-side surface S5 and a concave image-side surface S6. The fourth lens element E4 has negative power, and has a convex object-side surface S7 and a concave 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 concave object-side surface S13 and a convex 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 E8 has an object side S17 and an image side S18. The light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the imaging surface S19.
Table 51 shows the surface type, radius of curvature X, radius of curvature Y, thickness, refractive index, dispersion coefficient, conic coefficient X, and conic coefficient Y of each lens of the imaging lens of example 11, wherein the units of radius of curvature X, radius of curvature Y, and thickness are all millimeters (mm).
Watch 51
As can be seen from table 51, in example 11, the object-side surface and the image-side surface of any one of the second lens E2, the third lens E3, the sixth lens E6, the seventh lens E7, and the eighth lens E8, the image-side surface S2 of the first lens E1, the image-side surface S8 of the fourth lens E4, and the image-side surface S10 of the fifth lens are aspheric; the object-side surface S1 of the first lens, the object-side surface S7 of the fourth lens E4, and the object-side surface S9 of the fifth lens E5 are aspheric and not rotationally symmetric.
Table 52 shows high-order term coefficients that can be used for each aspherical mirror surface in example 11, wherein each aspherical mirror surface type can be defined by formula (1) given in example 1 above. Tables 53 and 54 show the rotationally symmetric components and the higher-order coefficients of the rotationally asymmetric components that can be used for the rotationally asymmetric aspherical surfaces S1, S7, and S9 in embodiment 11, wherein the non-rotationally symmetric aspherical surface types can be defined by formula (2) given in embodiment 1 above.
| Flour mark | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S2 | -1.6502E-02 | 1.2157E-02 | 1.0291E-03 | 2.3563E-05 | 2.6845E-04 | -2.1629E-04 | 2.9831E-05 | -2.8151E-06 | 0.0000E+00 |
| S3 | 8.9841E-03 | 1.4047E-03 | 2.7169E-03 | -1.7961E-03 | 7.3788E-04 | -3.0506E-04 | 1.0577E-04 | -2.6432E-05 | 0.0000E+00 |
| S4 | -3.7148E-03 | -1.0081E-04 | 3.7889E-03 | -1.3618E-03 | 6.9964E-04 | -6.3215E-05 | -4.2471E-05 | -1.6510E-05 | 0.0000E+00 |
| S5 | -1.6567E-02 | -5.1061E-04 | 3.7126E-04 | 3.6493E-04 | -1.0535E-04 | 1.6313E-04 | -4.8661E-05 | -4.0554E-05 | 0.0000E+00 |
| S6 | -3.0128E-02 | -4.8184E-03 | 7.9419E-04 | 2.3576E-04 | -1.6500E-04 | 6.9779E-05 | -1.7081E-05 | -4.5585E-06 | 0.0000E+00 |
| S8 | 5.8228E-03 | 2.8119E-03 | 3.2965E-04 | -2.3119E-05 | 8.0257E-05 | 3.9007E-05 | 3.0394E-05 | 2.0742E-05 | 0.0000E+00 |
| S10 | -1.2693E-01 | -3.5912E-03 | 4.0075E-04 | 1.2304E-04 | 9.7516E-05 | 4.5982E-05 | 1.1912E-05 | 1.3166E-05 | 0.0000E+00 |
| S11 | -2.1890E-01 | -1.6422E-03 | 6.6516E-03 | 1.1488E-03 | 2.2788E-04 | 6.0608E-05 | 1.2441E-05 | 1.0182E-06 | 0.0000E+00 |
| S12 | -1.2542E-01 | 2.6105E-02 | 7.8305E-03 | -9.0744E-05 | 2.1853E-05 | 2.3041E-04 | -1.1264E-04 | 4.1836E-06 | 0.0000E+00 |
| S13 | -2.1280E-01 | 3.1735E-02 | 1.4239E-02 | -6.5385E-03 | 4.7502E-03 | 8.3275E-04 | 4.2881E-04 | -1.8833E-04 | 0.0000E+00 |
| S14 | -4.9368E-01 | -5.9887E-03 | 1.9294E-02 | -1.4330E-02 | 7.8930E-03 | -2.8332E-04 | 1.1096E-03 | -3.2868E-04 | 0.0000E+00 |
| S15 | -4.5045E-01 | 1.7408E-01 | -4.4547E-02 | 1.5257E-04 | 1.6478E-03 | 1.6077E-03 | -1.4828E-03 | 3.1222E-04 | 0.0000E+00 |
| S16 | -5.8512E-01 | 1.8698E-01 | -5.1377E-02 | 5.3708E-03 | -5.0926E-03 | 2.0922E-03 | -2.9499E-04 | -2.9116E-05 | 0.0000E+00 |
Table 52
Watch 53
| AAS noodle | FR | FP | GR | GP | HR | HP | JR | JP |
| S1 | -3.4502E-04 | 0.0000E+00 | 9.1601E-05 | 0.0000E+00 | -9.1061E-06 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S7 | -3.0384E-02 | 0.0000E+00 | 1.0928E-02 | 0.0000E+00 | -1.7864E-03 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S9 | -2.8344E-03 | 0.0000E+00 | 4.4136E-04 | 0.0000E+00 | 9.1509E-05 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
Table 55 shows the effective focal lengths f1 to f8, the effective focal length fx of the imaging lens in the X-axis direction, the effective focal length fy of the imaging lens in the Y-axis direction, the total optical length TTL of the imaging lens, and the maximum half field angle Semi-FOV of each lens in example 11.
| f1(mm) | 4.96 | f7(mm) | -6.63 |
| f2(mm) | -144.03 | f8(mm) | -5.51 |
| f3(mm) | 8.94 | fx(mm) | 7.45 |
| f4(mm) | -3.66 | fy(mm) | 6.95 |
| f5(mm) | 7.98 | TTL(mm) | 7.09 |
| f6(mm) | 60.24 | Semi-FOV(°) | 18.0 |
Watch 55
Fig. 22 shows the magnitude of the RMS spot diameter at different angles of field in the first quadrant for the imaging lens of example 11. As can be seen from fig. 22, embodiment 11 provides a high-pixel, long-focus eight-lens imaging lens, which can better meet the use requirements of various special scenes.
In summary, examples 1 to 11 satisfy the relationships shown in table 56, respectively.
The present application also provides an image pickup apparatus, wherein the electronic photosensitive element may be a photosensitive coupling element (CCD) or a Complementary Metal Oxide Semiconductor (CMOS). The camera device may be a stand-alone camera device such as a digital camera, or may be a camera module integrated on a mobile electronic device such as a mobile phone. The image pickup apparatus is equipped with the 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 the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (39)
1. The imaging lens sequentially comprises from an object side to an image side: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element, and an eighth lens element,
it is characterized in that the preparation method is characterized in that,
the first lens has positive optical power;
the third lens has positive optical power;
the fourth lens has a negative optical power;
the fifth lens has positive focal power;
at least one of the first lens to the eighth lens has a non-rotationally symmetric aspherical surface;
the distance TTL from the center of the object side surface of the first lens to the imaging surface of the imaging lens on the optical axis, the effective focal length fx in the X-axis direction of the imaging lens and the effective focal length fy in the Y-axis direction of the imaging lens meet the condition that TTL/(fx + fy) × 2< 1.1.
2. The imaging lens of claim 1, wherein an effective focal length fx of the imaging lens in an X-axis direction and an effective focal length fy of the imaging lens in a Y-axis direction satisfy 0.8 < fx/fy < 1.2.
3. The imaging lens according to claim 1, wherein ImgH which is half the diagonal length of an effective pixel region on the imaging plane and an effective focal length fy in the Y-axis direction of the imaging lens satisfy ImgH/fy < 0.5.
4. The imaging lens according to claim 1, characterized in that an effective focal length f3 of the third lens, an effective focal length f1 of the first lens, and an effective focal length f5 of the fifth lens satisfy 0< f3/(f1+ f5) < 0.8.
5. The imaging lens of claim 1, wherein an effective focal length f4 of the fourth lens and a radius of curvature R8 of an image side surface of the fourth lens satisfy-2.3 < f4/R8< -1.3.
6. The imaging lens of claim 1, wherein a radius of curvature R5 of the object-side surface of the third lens and a radius of curvature R1 of the object-side surface of the first lens satisfy 1< R5/R1< 1.8.
7. The imaging lens of claim 1, wherein a radius of curvature R12 of the image-side surface of the sixth lens, a radius of curvature R13 of the object-side surface of the seventh lens, a radius of curvature R16 of the image-side surface of the eighth lens, and a radius of curvature R10 of the image-side surface of the fifth lens satisfy 0.3 ≦ (R12+ R13-R16)/R10 ≦ 1.3.
8. The imaging lens according to claim 1, wherein a center thickness CT1 of the first lens, a center thickness CT2 of the second lens, a center thickness CT3 of the third lens, and a center thickness CT4 of the fourth lens satisfy 0.5< CT1/(CT2+ CT3+ CT4) < 1.2.
9. The imaging lens according to claim 1, characterized in that an air interval T45 between the fourth lens and the fifth lens, an air interval T56 between the fifth lens and the sixth lens, and an air interval T67 between the sixth lens and the seventh lens satisfy 0.3< T45/(T56+ T67) < 1.0.
10. The imaging lens according to claim 1, wherein a distance SL from a diaphragm to the imaging surface on the optical axis and a distance TTL from a center of an object side surface of the first lens to the imaging surface on the optical axis satisfy 0.6< SL/TTL < 0.8.
11. The imaging lens of claim 1, wherein an effective half aperture DT21 of the object side surface of the second lens, an effective half aperture DT22 of the image side surface of the second lens, and a half ImgH of a diagonal length of an effective pixel region on the imaging plane satisfy 1.0< (DT21+ DT22)/ImgH < 1.5.
12. The imaging lens according to claim 1, characterized in that the edge thickness ET5 of the fifth lens, the edge thickness ET6 of the sixth lens, the center thickness CT5 of the fifth lens and the center thickness CT6 of the sixth lens satisfy 0.5< (ET5+ ET6)/(CT5+ CT6) < 1.0.
13. Imaging lens according to any one of claims 1 to 12,
the image side surface of the second lens is a concave surface;
the image side surface of the fifth lens is a convex surface; and
the image side surface of the eighth lens is a concave surface.
14. The imaging lens sequentially comprises from an object side to an image side: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element, and an eighth lens element,
it is characterized in that the preparation method is characterized in that,
the first lens has positive optical power;
the third lens has positive optical power;
the fourth lens has a negative optical power;
the fifth lens has positive focal power;
at least one of the first lens to the eighth lens has a non-rotationally symmetric aspherical surface;
the half of the diagonal length of the effective pixel area on the imaging surface ImgH and the effective focal length fy of the imaging lens in the Y-axis direction meet the condition that ImgH/fy is less than 0.5.
15. The imaging lens of claim 14, wherein an effective focal length fx of the imaging lens in an X-axis direction and an effective focal length fy of the imaging lens in a Y-axis direction satisfy 0.8 < fx/fy < 1.2.
16. The imaging lens system of claim 15, wherein an axial distance TTL between a center of an object-side surface of the first lens element and an imaging surface of the imaging lens system, an effective focal length fx of the imaging lens system in an X-axis direction, and an effective focal length fy of the imaging lens system in a Y-axis direction satisfy TTL/(fx + fy) < 1.1.
17. The imaging lens of claim 14, wherein an effective focal length f3 of the third lens, an effective focal length f1 of the first lens, and an effective focal length f5 of the fifth lens satisfy 0< f3/(f1+ f5) < 0.8.
18. The imaging lens of claim 14, wherein an effective focal length f4 of the fourth lens and a radius of curvature R8 of an image side surface of the fourth lens satisfy-2.3 < f4/R8< -1.3.
19. The imaging lens of claim 14, wherein a radius of curvature R5 of the third lens object-side surface and a radius of curvature R1 of the first lens object-side surface satisfy 1< R5/R1< 1.8.
20. The imaging lens of claim 14, wherein a radius of curvature R12 of the image-side surface of the sixth lens, a radius of curvature R13 of the object-side surface of the seventh lens, a radius of curvature R16 of the image-side surface of the eighth lens, and a radius of curvature R10 of the image-side surface of the fifth lens satisfy 0.3 ≦ (R12+ R13-R16)/R10 ≦ 1.3.
21. The imaging lens according to claim 14, wherein a center thickness CT1 of the first lens, a center thickness CT2 of the second lens, a center thickness CT3 of the third lens, and a center thickness CT4 of the fourth lens satisfy 0.5< CT1/(CT2+ CT3+ CT4) < 1.2.
22. The imaging lens according to claim 14, characterized in that an air interval T45 between the fourth lens and the fifth lens, an air interval T56 between the fifth lens and the sixth lens, and an air interval T67 between the sixth lens and the seventh lens satisfy 0.3< T45/(T56+ T67) < 1.0.
23. The imaging lens according to claim 14, wherein a distance SL from a stop to the imaging surface on an optical axis and a distance TTL from a center of an object side surface of the first lens to the imaging surface on the optical axis satisfy 0.6< SL/TTL < 0.8.
24. The imaging lens of claim 14, wherein an effective half aperture DT21 of the object side surface of the second lens, an effective half aperture DT22 of the image side surface of the second lens, and a half ImgH of a diagonal length of an effective pixel region on the imaging plane satisfy 1.0< (DT21+ DT22)/ImgH < 1.5.
25. The imaging lens of claim 14, wherein an edge thickness ET5 of the fifth lens, an edge thickness ET6 of the sixth lens, a center thickness CT5 of the fifth lens, and a center thickness CT6 of the sixth lens satisfy 0.5< (ET5+ ET6)/(CT5+ CT6) < 1.0.
26. Imaging lens according to any one of claims 14 to 25,
the image side surface of the second lens is a concave surface;
the image side surface of the fifth lens is a convex surface; and
the image side surface of the eighth lens is a concave surface.
27. The imaging lens sequentially comprises from an object side to an image side: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element, and an eighth lens element,
it is characterized in that the preparation method is characterized in that,
the first lens has positive optical power;
the third lens has positive optical power;
the fourth lens has a negative optical power;
the fifth lens has positive focal power;
at least one of the first lens to the eighth lens has a non-rotationally symmetric aspherical surface;
an effective focal length f3 of the third lens, an effective focal length f1 of the first lens, and an effective focal length f5 of the fifth lens satisfy 0< f3/(f1+ f5) < 0.8.
28. The imaging lens of claim 27, wherein an effective focal length fx of the imaging lens in an X-axis direction and an effective focal length fy of the imaging lens in a Y-axis direction satisfy 0.8 < fx/fy < 1.2.
29. The imaging lens of claim 28, wherein ImgH, which is half the diagonal length of an effective pixel area on an imaging plane, and an effective focal length fy in a Y-axis direction of the imaging lens satisfy ImgH/fy < 0.5.
30. The imaging lens system of claim 28, wherein an axial distance TTL between a center of an object-side surface of the first lens element and an imaging surface of the imaging lens system, an effective focal length fx of the imaging lens system in an X-axis direction, and an effective focal length fy of the imaging lens system in a Y-axis direction satisfy TTL/(fx + fy) < 1.1.
31. The imaging lens of claim 27, wherein an effective focal length f4 of the fourth lens and a radius of curvature R8 of an image side surface of the fourth lens satisfy-2.3 < f4/R8< -1.3.
32. The imaging lens of claim 27, wherein a radius of curvature R5 of the third lens object-side surface and a radius of curvature R1 of the first lens object-side surface satisfy 1< R5/R1< 1.8.
33. The imaging lens of claim 27, wherein a radius of curvature R12 of the image-side surface of the sixth lens, a radius of curvature R13 of the object-side surface of the seventh lens, a radius of curvature R16 of the image-side surface of the eighth lens, and a radius of curvature R10 of the image-side surface of the fifth lens satisfy 0.3 ≦ (R12+ R13-R16)/R10 ≦ 1.3.
34. The imaging lens of claim 27, wherein a center thickness CT1 of the first lens, a center thickness CT2 of the second lens, a center thickness CT3 of the third lens, and a center thickness CT4 of the fourth lens satisfy 0.5< CT1/(CT2+ CT3+ CT4) < 1.2.
35. The imaging lens of claim 27, wherein an air interval T45 between the fourth lens and the fifth lens, an air interval T56 between the fifth lens and the sixth lens, and an air interval T67 between the sixth lens and the seventh lens satisfy 0.3< T45/(T56+ T67) < 1.0.
36. The imaging lens according to claim 27, wherein a distance SL from a stop to an imaging surface on an optical axis and a distance TTL from a center of an object side surface of the first lens to the imaging surface on the optical axis satisfy 0.6< SL/TTL < 0.8.
37. The imaging lens of claim 27, wherein the effective half aperture DT21 of the object side surface of the second lens, the effective half aperture DT22 of the image side surface of the second lens, and half ImgH of a diagonal length of an effective pixel region on an imaging plane satisfy 1.0< (DT21+ DT22)/ImgH < 1.5.
38. The imaging lens of claim 27, wherein an edge thickness ET5 of the fifth lens, an edge thickness ET6 of the sixth lens, a center thickness CT5 of the fifth lens, and a center thickness CT6 of the sixth lens satisfy 0.5< (ET5+ ET6)/(CT5+ CT6) < 1.0.
39. Imaging lens according to any one of claims 27 to 38,
the image side surface of the second lens is a concave surface;
the image side surface of the fifth lens is a convex surface; and
the image side surface of the eighth lens is a concave surface.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375349A (en) * | 2018-12-25 | 2019-02-22 | 浙江舜宇光学有限公司 | Imaging lens |
| CN112099202A (en) * | 2020-11-02 | 2020-12-18 | 瑞泰光学(常州)有限公司 | Image pickup optical lens |
| JP6894569B1 (en) * | 2020-09-29 | 2021-06-30 | ジョウシュウシ レイテック オプトロニクス カンパニーリミテッド | Imaging optical lens |
| US20220099936A1 (en) * | 2020-09-29 | 2022-03-31 | Changzhou Raytech Optronics Co., Ltd. | Camera optical lens |
| WO2023224448A1 (en) * | 2022-05-20 | 2023-11-23 | 엘지이노텍 주식회사 | Optical system and camera module comprising same |
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2018
- 2018-12-25 CN CN201822184586.8U patent/CN209911623U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375349A (en) * | 2018-12-25 | 2019-02-22 | 浙江舜宇光学有限公司 | Imaging lens |
| JP6894569B1 (en) * | 2020-09-29 | 2021-06-30 | ジョウシュウシ レイテック オプトロニクス カンパニーリミテッド | Imaging optical lens |
| US20220099936A1 (en) * | 2020-09-29 | 2022-03-31 | Changzhou Raytech Optronics Co., Ltd. | Camera optical lens |
| CN112099202A (en) * | 2020-11-02 | 2020-12-18 | 瑞泰光学(常州)有限公司 | Image pickup optical lens |
| WO2023224448A1 (en) * | 2022-05-20 | 2023-11-23 | 엘지이노텍 주식회사 | Optical system and camera module comprising same |
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