CN211014812U - Optical imaging lens - Google Patents
Optical imaging lens Download PDFInfo
- Publication number
- CN211014812U CN211014812U CN201922074521.2U CN201922074521U CN211014812U CN 211014812 U CN211014812 U CN 211014812U CN 201922074521 U CN201922074521 U CN 201922074521U CN 211014812 U CN211014812 U CN 211014812U
- Authority
- CN
- China
- Prior art keywords
- lens
- image
- convex
- refractive index
- lens element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Lenses (AREA)
Abstract
The utility model relates to a camera lens technical field. The utility model discloses an optical imaging lens, including ten lens, first lens second lens, sixth lens and ninth lens are the convex-convex lens of utensil positive refractive index, third lens and fifth lens are the concave-concave lens of utensil negative refractive index, the fourth lens are the plano-convex lens of positive refractive index, the seventh lens are the meniscus lens of negative refractive index, the eighth lens are the convex-concave lens of negative refractive index, the tenth lens are the concave-concave lens or the concave lens of negative refractive index, the image side of this second lens and the object side of third lens are glued each other; the image side surface of the fourth lens and the object side surface of the fifth lens are mutually glued; the image side surface of the sixth lens and the object side surface of the seventh lens are mutually glued; the image side surface of the eighth lens and the object side surface of the ninth lens are mutually cemented. The utility model has the advantages of large image surface, high unit pixel occupation ratio, large light transmission, good color difference optimization and good imaging quality.
Description
Technical Field
The utility model belongs to the technical field of the camera lens, specifically relate to an optical imaging camera lens for intelligent transportation system.
Background
With the continuous progress of science and technology, in recent years, the optical imaging lens is rapidly developed and widely applied to various fields such as smart phones, tablet computers, video conferences, vehicle-mounted monitoring, security monitoring, intelligent traffic systems and the like, so that the requirement on the optical imaging lens is higher and higher.
In an intelligent traffic system, the performance of an optical imaging lens is critical, and the reliability of the whole system is affected. However, the proportion of unit pixels (pixels) is not high when the optical imaging lens is applied to an intelligent traffic system at present, and the later-stage algorithm development is not facilitated; the general light transmission is small, and the relative illumination of the edge of an imaging surface is low; the image plane size (namely the diagonal length of the image plane) is about 1/1.8 inch and 1 inch, the image plane size is small, and the total pixel value is low; the general chromatic aberration is not optimized enough, the blue-violet edge phenomenon is easy to occur, the increasing requirements of the intelligent traffic system cannot be met, and the improvement is urgently needed.
Disclosure of Invention
An object of the utility model is to provide an optical imaging lens is used for solving the technical problem that the above-mentioned exists.
In order to achieve the above object, the utility model adopts the following technical scheme: an optical imaging lens sequentially comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens from an object side to an image side along an optical axis; the first lens element to the tenth lens element each include an object-side surface facing the object side and passing the image light and an image-side surface facing the image side and passing the image light;
the first lens element with positive refractive index has a convex object-side surface and a convex image-side surface;
the second lens element with positive refractive index has a convex object-side surface and a convex image-side surface;
the third lens element with negative refractive index has a concave object-side surface and a concave image-side surface;
the fourth lens element with positive refractive index has a planar object-side surface and a convex image-side surface;
the fifth lens element with negative refractive index has a concave object-side surface and a concave image-side surface;
the sixth lens element with positive refractive index has a convex object-side surface and a convex image-side surface;
the seventh lens element with negative refractive index has a concave object-side surface and a convex image-side surface;
the eighth lens element with negative refractive index has a convex object-side surface and a concave image-side surface;
the ninth lens element with positive refractive power has a convex object-side surface and a convex image-side surface;
the tenth lens element with negative refractive index has a concave object-side surface and a convex or concave image-side surface;
the image side surface of the second lens and the object side surface of the third lens are mutually glued; the image side surface of the fourth lens and the object side surface of the fifth lens are mutually glued; the image side surface of the sixth lens and the object side surface of the seventh lens are mutually glued; the image side surface of the eighth lens and the object side surface of the ninth lens are mutually cemented; the optical imaging lens has only ten lenses with refractive indexes.
Further, the optical imaging lens further satisfies the following conditions: vd2-vd3>30, where vd2 and vd3 represent the abbe numbers of the second and third lenses, respectively.
Further, the tenth lens is of a field lens structure.
Further, the optical diaphragm is arranged between the seventh lens and the eighth lens.
Further, the first lens to the tenth lens are made of glass materials.
Furthermore, the first lens to the tenth lens are all made of environment-friendly materials.
The utility model has the advantages of:
the utility model adopts ten lenses, and through correspondingly designing each lens, the unit pixel occupation ratio is high, which is beneficial to the later image processing and the corresponding algorithm development; the clear aperture is large, the light inlet quantity is large, and the relative illumination of the edge of the image surface is uniform; the size of an imaging surface is large (1.1 inch), and the total pixel value is ten million pixels; the visible light is designed in a wide spectrum, the color difference is optimized well, and the method has the advantage of good image color reducibility.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is a graph of MTF of 0.435-0.656 μm in visible light according to the first embodiment of the present invention;
FIG. 3 is a defocus plot of 0.435-0.656 μm visible light according to the first embodiment of the present invention;
fig. 4 is a contrast graph of 0.546 μm visible light according to the first embodiment of the present invention;
fig. 5 is a lateral chromatic aberration graph of visible light of 0.546 μm according to the first embodiment of the present invention;
fig. 6 is a longitudinal aberration curve chart of visible light of 0.435-0.656 μm according to the first embodiment of the present invention;
fig. 7 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 8 is a graph of MTF of 0.435-0.656 μm in visible light according to embodiment II of the present invention;
fig. 9 is a defocus graph of 0.435-0.656 μm visible light according to the second embodiment of the present invention;
fig. 10 is a contrast graph of visible light of 0.546 μm according to the second embodiment of the present invention;
fig. 11 is a lateral chromatic aberration graph of visible light of 0.546 μm according to the second embodiment of the present invention;
fig. 12 is a longitudinal aberration curve chart of visible light of 0.435-0.656 μm according to embodiment two of the present invention;
fig. 13 is a schematic structural view of a third embodiment of the present invention;
FIG. 14 is a graph of MTF of 0.435-0.656 μm in visible light according to the third embodiment of the present invention;
fig. 15 is a defocus graph of 0.435-0.656 μm visible light according to the third embodiment of the present invention;
fig. 16 is a contrast graph of visible light 0.546 μm according to the third embodiment of the present invention;
fig. 17 is a lateral chromatic aberration graph of visible light of 0.546 μm according to the third embodiment of the present invention;
fig. 18 is a longitudinal aberration curve of visible light of 0.435-0.656 μm according to the third embodiment of the present invention;
fig. 19 is a schematic structural diagram of a fourth embodiment of the present invention;
fig. 20 is a graph of MTF of 0.435-0.656 μm in visible light according to the fourth embodiment of the present invention;
fig. 21 is a defocus graph of 0.435-0.656 μm visible light according to the fourth embodiment of the present invention;
fig. 22 is a contrast graph of visible light of 0.546 μm according to example four of the present invention;
fig. 23 is a lateral chromatic aberration graph of visible light of 0.546 μm according to the fourth embodiment of the present invention;
fig. 24 is a longitudinal aberration curve of visible light of 0.435 to 0.656 μm according to the fourth embodiment of the present invention;
Detailed Description
To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
The present invention will now be further described with reference to the accompanying drawings and detailed description.
The term "a lens element having positive refractive index (or negative refractive index)" means that the paraxial refractive index of the lens element calculated by Gaussian optics theory is positive (or negative). The term "object-side (or image-side) of a lens" is defined as the specific range of imaging light rays passing through the lens surface. The determination of the surface shape of the lens can be performed by the judgment method of a person skilled in the art, i.e., by the sign of the curvature radius (abbreviated as R value). The R value may be commonly used in optical design software, such as Zemax or CodeV. The R value is also commonly found in lens data sheets (lens data sheets) of optical design software. When the R value is positive, the object side is judged to be a convex surface; and when the R value is negative, judging that the object side surface is a concave surface. On the contrary, regarding the image side surface, when the R value is positive, the image side surface is judged to be a concave surface; when the R value is negative, the image side surface is judged to be convex.
The utility model discloses an optical imaging lens, which comprises a first lens to a tenth lens from an object side to an image side along an optical axis in sequence; the first lens element to the tenth lens element each include an object-side surface facing the object side and passing the image light, and an image-side surface facing the image side and passing the image light.
The first lens element with positive refractive index has a convex object-side surface and a convex image-side surface.
The second lens element with positive refractive index has a convex object-side surface and a convex image-side surface.
The third lens element with negative refractive index has a concave object-side surface and a concave image-side surface.
The fourth lens element with positive refractive power has a planar object-side surface and a convex image-side surface.
The fifth lens element with negative refractive index has a concave object-side surface and a concave image-side surface.
The sixth lens element with positive refractive power has a convex object-side surface and a convex image-side surface.
The seventh lens element with a negative refractive index has a concave object-side surface and a convex image-side surface.
The eighth lens element with a negative refractive index has a convex object-side surface and a convex image-side surface.
The ninth lens element with positive refractive power has a convex object-side surface and a convex image-side surface.
The tenth lens element with negative refractive index has a concave object-side surface and a convex or concave image-side surface;
the image side surface of the second lens and the object side surface of the third lens are mutually glued; the image side surface of the fourth lens and the object side surface of the fifth lens are mutually glued; the image side surface of the sixth lens and the object side surface of the seventh lens are mutually glued; the image side surface of the eighth lens and the object side surface of the ninth lens are mutually cemented.
The optical imaging lens has only ten lenses with refractive indexes. The utility model adopts ten lenses, and through correspondingly designing each lens, the unit pixel occupation ratio is high, which is beneficial to the later image processing and the corresponding algorithm development; the clear aperture is large, the light inlet quantity is large, and the relative illumination of the edge of the image surface is uniform; the size of an imaging surface is large, and the total pixel value is ten million pixels; the visible light is designed in a wide spectrum, the color difference is optimized well, and the method has the advantage of good image color reducibility.
Preferably, the optical imaging lens further satisfies: vd2-vd3>30, wherein vd2 and vd3 respectively represent the abbe numbers of the second lens and the third lens, and the chromatic aberration can be optimized well.
Preferably, the tenth lens is of a field lens structure, so that field curvature can be well corrected, and edge image quality is improved.
Preferably, the optical system further comprises a diaphragm, the diaphragm is arranged between the seventh lens and the eighth lens, and the diaphragm is arranged behind the seventh lens and is beneficial to optimizing an off-axis field of view and improving the edge image quality; the diaphragm is close to the image surface, and the whole size is smaller, so that the miniaturization design of the lens is facilitated.
Preferably, the first lens to the tenth lens are made of glass materials, so that the temperature drift is small.
Preferably, the first lens to the tenth lens are made of environment-friendly materials, and meet the environment-friendly requirement.
The optical imaging lens of the present invention will be described in detail with reference to specific embodiments.
Implement one
As shown in fig. 1, an optical imaging lens includes, in order along an optical axis I from an object side a1 to an image side a2, a first lens 1, a second lens 2, a third lens 3, a fourth lens 4, a fifth lens 5, a sixth lens 6, a seventh lens 7, a diaphragm 110, an eighth lens 8, a ninth lens 9, a tenth lens 100, a cover glass 120, and an image plane 130; the first lens element 1 to the tenth lens element 100 each include an object-side surface facing the object side a1 and passing the image light, and an image-side surface facing the image side a2 and passing the image light.
The first lens element 1 has a positive refractive index, the object-side surface 11 of the first lens element 1 is convex, and the image-side surface 12 of the first lens element 1 is convex.
The second lens element 2 has a positive refractive index, and an object-side surface 21 of the second lens element 2 is convex and an image-side surface 22 of the second lens element 2 is convex.
The third lens element 3 has a negative refractive index, and an object-side surface 31 of the third lens element 3 is concave and an image-side surface 32 of the third lens element 3 is concave.
The fourth lens element 4 has a positive refractive index, the object-side surface 41 of the fourth lens element 4 is a flat surface, and the image-side surface 42 of the fourth lens element 4 is a convex surface.
The fifth lens element 5 has a negative refractive index, and an object-side surface 51 of the fifth lens element 5 is concave and an image-side surface 52 of the fifth lens element 5 is concave.
The sixth lens element 6 with positive refractive index has a convex object-side surface 61 of the sixth lens element 6 and a convex image-side surface 62 of the sixth lens element 6.
The seventh lens element 7 has a negative refractive index, and an object-side surface 71 of the seventh lens element 7 is convex and an image-side surface 72 of the seventh lens element 7 is concave.
The eighth lens element 8 has a negative refractive index, and an object-side surface 81 of the eighth lens element 8 is concave and an image-side surface 82 of the eighth lens element 8 is convex.
The ninth lens element 9 with positive refractive power has a convex object-side surface 91 of the ninth lens element 9 and a convex image-side surface 92 of the ninth lens element 9.
The tenth lens element 100 with negative refractive index has a concave object-side surface 101 of the tenth lens element 100 and a concave image-side surface 102 of the tenth lens element 100.
In the present embodiment, the image-side surface 22 of the second lens element 2 and the object-side surface 31 of the third lens element 3 are cemented to each other; the image side surface 42 of the fourth lens 4 and the object side surface 51 of the fifth lens 5 are mutually cemented; the image side surface 62 of the sixth lens element 6 and the object side surface 71 of the seventh lens element 7 are cemented to each other; the image-side surface 82 of the eighth lens element 8 and the object-side surface 91 of the ninth lens element 9 are cemented to each other.
In this embodiment, the tenth lens 100 is a field lens structure.
In this embodiment, the first lens element 1 to the tenth lens element 100 are made of glass material, but not limited thereto, and in other embodiments, they may be made of plastic material.
In this embodiment, the materials of the first lens element 1 to the tenth lens element 100 are all environment-friendly materials.
In other embodiments, the stop 110 may also be disposed between other lenses.
The detailed optical data of this embodiment are shown in Table 1-1.
Table 1-1 detailed optical data for example one
| Surface of | Caliber/mm | Radius of curvature/mm | Thickness/mm | Material of | Refractive index | Coefficient of dispersion | Focal length/mm | ||
| - | Shot object | Infinity | Infinity | ||||||
| 11 | First lens | 44.000 | 90.257 | 6.748 | H-BAK8 | 1.572499 | 57.5208 | 112.23 | |
| 12 | 39.000 | -220.104 | 0.124 | ||||||
| 21 | Second lens | 40.000 | 40.609 | 13.859 | FCD10A | 1.458597 | 90.1949 | 49.34 | |
| 22 | 40.000 | -64.581 | 0 | ||||||
| 31 | Third lens | 40.000 | -64.581 | 2.148 | FD60-W | 1.805181 | 25.4564 | -45.97 | |
| 32 | 30.368 | 89.966 | 2.266 | ||||||
| 41 | Fourth lens | 35.000 | Infinity | 4.544 | H-ZF88 | 1.945958 | 17.9439 | 56.32 | |
| 42 | 35.000 | -53.970 | 0 | ||||||
| 51 | Fifth lens element | 35.000 | -53.970 | 1.824 | H-LAF6LA | 1.757 | 47.714 | -24.29 | |
| 52 | 27.080 | 28.516 | 7.484 | ||||||
| 61 | Sixth lens element | 31.000 | 44.817 | 7.120 | H-LAF62 | 1.719999 | 43.6912 | 32.02 | |
| 62 | 31.000 | -54.817 | 0 | ||||||
| 71 | Seventh lens element | 31.000 | -54.817 | 1.847 | H-ZF7LAGT | 1.805189 | 25.4773 | -55.15 | |
| 72 | 27.993 | Infinity | 1.906 | ||||||
| 110 | Diaphragm | 27.655 | Infinity | 2.462 | |||||
| 81 | Eighth lens element | 31.000 | 100.040 | 1.841 | H-ZLAF2A | 1.802793 | 46.7741 | -56.76 | |
| 82 | 31.000 | 31.157 | 0 | ||||||
| 91 | Ninth lens | 31.000 | 31.157 | 9.187 | H-LAK52 | 1.729164 | 54.6690 | 27.30 | |
| 92 | 31.000 | -48.848 | 19.842 | ||||||
| 101 | Tenth lens | 17.904 | -36.364 | 2.092 | H-F4 | 1.620047 | 36.3479 | -45.32 | |
| 102 | 17.883 | -400.002 | 2.200 | ||||||
| 120 | Cover glass | 17.798 | Infinity | 1.800 | H-K9L | 1.516797 | 64.2124 | ||
| - | 17.754 | Infinity | 9.217 | ||||||
| 130 | Image plane | 17.431 | Infinity | 0.000 |
Referring to fig. 2, it can be seen from the graph that the unit pixel occupation ratio is high, and the MTF value at the spatial frequency of 145lp/mm is greater than 0.3 in the visible light environment, so as to meet the requirement of image definition; referring to fig. 3, the defocusing curve of visible light shows uniform image quality; referring to fig. 4, it can be seen that the relative illumination of the visible light is greater than 75% in normal use; referring to fig. 5 and 6, it can be seen that the axial chromatic aberration is less than ± 2 μm, the vertical chromatic aberration is less than ± 0.04mm, the color is well restored, and the blue-violet phenomenon does not occur.
In this embodiment, the aperture value FNO is 1.8, the size of the image plane is 1.1 inches, the focal length f is 71.14mm, and the field angle FOV is 17.4 °.
Example two
As shown in fig. 7, the surface convexoconcave and the refractive index of each lens element of the present embodiment are substantially the same as those of the first embodiment, only the image-side surface 102 of the tenth lens element 100 is a convex surface, and the optical parameters such as the curvature radius of each lens element surface and the lens thickness are different.
The detailed optical data of this embodiment is shown in Table 2-1.
TABLE 2-1 detailed optical data for example two
| Surface of | Caliber/mm | Radius of curvature/mm | Thickness/mm | Material of | Refractive index | Coefficient of dispersion | Focal length/mm | ||
| - | Shot object | Infinity | Infinity | ||||||
| 11 | First lens | 44.000 | 84.844 | 6.734 | H-BAK8 | 1.572499 | 57.5208 | 107.39 | |
| 12 | 38.000 | -220.102 | 0.134 | ||||||
| 21 | Second lens | 40.000 | 33.236 | 15.010 | FCD10A | 1.458597 | 90.1949 | 51.19 | |
| 22 | 40.000 | -89.185 | 0 | ||||||
| 31 | Third lens | 40.000 | -89.185 | 2.141 | FD60-W | 1.805181 | 25.4564 | -41.95 | |
| 32 | 29.152 | 68.153 | 2.086 | ||||||
| 41 | Fourth lens | 35.000 | Infinity | 4.617 | H-ZF88 | 1.945958 | 17.9439 | 54.70 | |
| 42 | 35.000 | -52.416 | 0 | ||||||
| 51 | Fifth lens element | 35.000 | -52.416 | 1.454 | H-LAF6LA | 1.757 | 47.714 | -23.96 | |
| 52 | 26.50655 | 36.275 | 5.238 | ||||||
| 61 | Sixth lens element | 31.000 | 40.030 | 7.706 | H-LAF62 | 1.719999 | 43.6912 | 28.81 | |
| 62 | 31.000 | -40.030 | 0 | ||||||
| 71 | Seventh lens element | 31.000 | -40.030 | 1.814 | H-ZF7LAGT | 1.805189 | 25.4773 | -53.64 | |
| 72 | 27.063 | -500.106 | 3.418 | ||||||
| 110 | Diaphragm | 26.267 | Infinity | 4.703 | |||||
| 81 | Eighth lens element | 31.000 | 100.428 | 2.090 | H-ZLAF2A | 1.802793 | 46.7741 | -54.59 | |
| 82 | 30.000 | 36.335 | 0 | ||||||
| 91 | Ninth lens | 30.000 | 36.335 | 8.525 | H-LAK52 | 1.729164 | 54.6690 | 26.57 | |
| 92 | 30.000 | -47.845 | 17.744 | ||||||
| 101 | Tenth lens | 17.717 | -25.550 | 2.084 | H-F4 | 1.620047 | 36.3479 | -43.83 | |
| 102 | 17.721 | -400.080 | 2.200 | ||||||
| 120 | Cover glass | 17.662 | Infinity | 1.800 | H-K9L | 1.516797 | 64.2124 | ||
| - | 17.632 | Infinity | 8.803 | ||||||
| 130 | Image plane | 17.431 | Infinity | 0.000 |
Referring to fig. 8, it can be seen from the graph that the unit pixel occupation ratio is high, and the MTF value at the spatial frequency of 145lp/mm is greater than 0.3 in the visible light environment, so as to meet the requirement of image definition; referring to fig. 9, the defocusing curve of visible light shows uniform image quality; referring to fig. 10, it can be seen that the relative illumination of the visible light is greater than 75% in normal use; referring to fig. 11 and 12, it can be seen that the axial chromatic aberration is less than ± 2 μm, the vertical chromatic aberration is less than ± 0.04mm, the color reduction is good, and the blue-violet phenomenon does not occur.
In this embodiment, the aperture value FNO is 1.8, the size of the image plane is 1.1 inches, the focal length f is 71.11mm, and the field angle FOV is 17.4 °.
EXAMPLE III
As shown in fig. 13, in this embodiment, the surface convexities and concavities and refractive indexes of the lenses are substantially the same as those of the first embodiment, only the image-side surface 102 of the tenth lens element 100 is a convex surface, and the optical parameters such as the curvature radius of the surface of each lens element and the lens thickness are different.
The detailed optical data of this embodiment is shown in Table 3-1.
TABLE 3-1 detailed optical data for EXAMPLE III
| Surface of | Caliber/mm | Radius of curvature/mm | Thickness/mm | Material of | Refractive index | Coefficient of dispersion | Focal length/mm | ||
| - | Shot object | Infinity | Infinity | ||||||
| 11 | First lens | 44.000 | 84.561 | 6.970 | H-BAK8 | 1.572499 | 57.5208 | 107.16 | |
| 12 | 38.800 | -220.052 | 0.131 | ||||||
| 21 | Second lens | 40.000 | 33.270 | 15.063 | FCD10A | 1.458597 | 90.1949 | 51.18 | |
| 22 | 40.000 | -68.952 | 0 | ||||||
| 31 | Third lens | 40.000 | -68.952 | 2.188 | FD60-W | 1.805181 | 25.4564 | -42.03 | |
| 32 | 28.928 | 88.640 | 2.093 | ||||||
| 41 | Fourth lens | 35.000 | Infinity | 4.712 | H-ZF88 | 1.945958 | 17.9439 | 55.04 | |
| 42 | 35.000 | -52.743 | 0 | ||||||
| 51 | Fifth lens element | 35.000 | -52.743 | 1.734 | H-LAF6LA | 1.757 | 47.714 | -23.89 | |
| 52 | 26.18766 | 28.132 | 5.189 | ||||||
| 61 | Sixth lens element | 31.000 | 39.744 | 8.081 | H-LAF62 | 1.719999 | 43.6912 | 28.67 | |
| 62 | 31.000 | -39.744 | 0 | ||||||
| 71 | Seventh lens element | 31.000 | -39.744 | 1.822 | H-ZF7LAGT | 1.805189 | 25.4773 | -53.22 | |
| 72 | 26.624 | -300.087 | 5.400 | ||||||
| 110 | Diaphragm | 25.372 | Infinity | 2.182 | |||||
| 81 | Eighth lens element | 31.000 | 100.291 | 2.075 | H-ZLAF2A | 1.802793 | 46.7741 | -57.04 | |
| 82 | 30.000 | 31.256 | 0 | ||||||
| 91 | Ninth lens | 30.000 | 31.256 | 8.397 | H-LAK52 | 1.729164 | 54.6690 | 27.02 | |
| 92 | 30.000 | -47.795 | 17.597 | ||||||
| 101 | Tenth lens | 17.391 | -38.412 | 2.083 | H-F4 | 1.620047 | 36.3479 | -43.57 | |
| 102 | 17.443 | -400.059 | 2.200 | ||||||
| 120 | Cover glass | 17.437 | Infinity | 1.800 | H-K9L | 1.516797 | 64.2124 | ||
| - | 17.433 | Infinity | 8.573 | ||||||
| 130 | Image plane | 17.433 | Infinity | 0.000 |
Referring to fig. 14, it can be seen from the graph that the unit pixel occupation ratio is high, and the MTF value at the spatial frequency of 145lp/mm is greater than 0.3 in the visible light environment, so as to meet the requirement of the image definition; referring to fig. 15, the defocusing curve of visible light shows uniform image quality; referring to fig. 16, it can be seen that the relative illumination of the visible light is greater than 75% in normal use; referring to fig. 17 and 18, it can be seen that the axial chromatic aberration is less than ± 2 μm, the vertical chromatic aberration is less than ± 0.04mm, the color reduction is good, and the blue-violet phenomenon does not occur.
In this embodiment, the aperture value FNO is 1.8, the size of the image plane is 1.1 inches, the focal length f is 70.80mm, and the field angle FOV is 17.4 °.
Example four
As shown in fig. 19, in this example, the surface-type convexo-concave and the refractive index of each lens are the same as those of the first example, and only the optical parameters such as the curvature radius of the surface of each lens and the thickness of the lens are different.
The detailed optical data of this embodiment is shown in Table 4-1.
TABLE 4-1 detailed optical data for example four
| Surface of | Caliber/mm | Radius of curvature/mm | Thickness/mm | Material of | Refractive index | Coefficient of dispersion | Focal length/mm | ||
| - | Shot object | Infinity | Infinity | ||||||
| 11 | First lens | 44.000 | 92.335 | 6.758 | H-BAK8 | 1.572499 | 57.5208 | 106.64 | |
| 12 | 39.000 | -220.711 | 0.148 | ||||||
| 21 | Second lens | 40.000 | 45.233 | 15.272 | FCD10A | 1.458597 | 90.1949 | 51.28 | |
| 22 | 40.000 | -81.374 | 0 | ||||||
| 31 | Third lens | 40.000 | -81.374 | 1.987 | FD60-W | 1.805181 | 25.4564 | -48.50 | |
| 32 | 28.657 | 77.268 | 2.078 | ||||||
| 41 | Fourth lens | 35.000 | Infinity | 4.994 | H-ZF88 | 1.945958 | 17.9439 | 56.48 | |
| 42 | 35.000 | -54.124 | 0 | ||||||
| 51 | Fifth lens element | 35.000 | -54.124 | 4.836 | H-LAF6LA | 1.757 | 47.714 | -22.13 | |
| 52 | 24.07489 | 25.386 | 7.801 | ||||||
| 61 | Sixth lens element | 31.000 | 33.616 | 7.699 | H-LAF62 | 1.719999 | 43.6912 | 30.62 | |
| 62 | 31.000 | -42.616 | 0 | ||||||
| 71 | Seventh lens element | 31.000 | -42.616 | 2.195 | H-ZF7LAGT | 1.805189 | 25.4773 | -62.03 | |
| 72 | 32.000 | -282.009 | 1.811 | ||||||
| 110 | Diaphragm | 23.709 | Infinity | 2.017 | |||||
| 81 | Eighth lens element | 31.000 | 100.214 | 2.135 | H-ZLAF2A | 1.802793 | 46.7741 | -43.20 | |
| 82 | 31.000 | 25.616 | 0 | ||||||
| 91 | Ninth lens | 31.000 | 25.616 | 10.163 | H-LAK52 | 1.729164 | 54.6690 | 23.46 | |
| 92 | 31.000 | -46.410 | 12.466 | ||||||
| 101 | Tenth lens | 17.797 | -28.273 | 2.090 | H-F4 | 1.620047 | 36.3479 | -43.61 | |
| 102 | 17.609 | 160.248 | 2.200 | ||||||
| 120 | Cover glass | 17.583 | Infinity | 1.800 | H-K9L | 1.516797 | 64.2124 | ||
| - | 17.567 | Infinity | 10.842 | ||||||
| 130 | Image plane | 17.458 | Infinity | 0.000 |
Referring to fig. 20, it can be seen from the graph that the unit pixel occupation ratio is high, and the MTF value at the spatial frequency of 145lp/mm is greater than 0.3 in the visible light environment, so as to meet the requirement of image definition; referring to fig. 21, the defocusing curve of visible light shows uniform image quality; referring to fig. 22, it can be seen that the relative illumination of the visible light is greater than 75% in normal use; referring to fig. 23 and 24, it can be seen that the axial chromatic aberration is less than ± 2 μm, the vertical chromatic aberration is less than ± 0.04mm, the color reduction is good, and the blue-violet phenomenon does not occur.
In this embodiment, the aperture value FNO is 1.8, the size of the image plane is 1.1 inches, the focal length f is 71.10mm, and the field angle FOV is 17.4 °.
The utility model has a temperature application range of-30 ℃ to 80 ℃, and can ensure that the picture is clear and not out of focus when being normally used in the temperature range.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. An optical imaging lens characterized in that: the lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens in sequence from the object side to the image side along an optical axis; the first lens element to the tenth lens element each include an object-side surface facing the object side and passing the image light and an image-side surface facing the image side and passing the image light;
the first lens element with positive refractive index has a convex object-side surface and a convex image-side surface;
the second lens element with positive refractive index has a convex object-side surface and a convex image-side surface;
the third lens element with negative refractive index has a concave object-side surface and a concave image-side surface;
the fourth lens element with positive refractive index has a planar object-side surface and a convex image-side surface;
the fifth lens element with negative refractive index has a concave object-side surface and a concave image-side surface;
the sixth lens element with positive refractive index has a convex object-side surface and a convex image-side surface;
the seventh lens element with negative refractive index has a concave object-side surface and a convex image-side surface;
the eighth lens element with negative refractive index has a convex object-side surface and a concave image-side surface;
the ninth lens element with positive refractive power has a convex object-side surface and a convex image-side surface;
the tenth lens element with negative refractive index has a concave object-side surface and a convex or concave image-side surface;
the image side surface of the second lens and the object side surface of the third lens are mutually glued; the image side surface of the fourth lens and the object side surface of the fifth lens are mutually glued; the image side surface of the sixth lens and the object side surface of the seventh lens are mutually glued; the image side surface of the eighth lens and the object side surface of the ninth lens are mutually cemented; the optical imaging lens has only ten lenses with refractive indexes.
2. The optical imaging lens of claim 1, further satisfying: vd2-vd3>30, where vd2 and vd3 represent the abbe numbers of the second and third lenses, respectively.
3. The optical imaging lens according to claim 1, characterized in that: the tenth lens is of a field lens structure.
4. The optical imaging lens according to claim 1, characterized in that: and the diaphragm is arranged between the seventh lens and the eighth lens.
5. The optical imaging lens according to claim 1, characterized in that: the first lens to the tenth lens are made of glass materials.
6. The optical imaging lens according to claim 1, characterized in that: the first lens to the tenth lens are all made of environment-friendly materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922074521.2U CN211014812U (en) | 2019-11-27 | 2019-11-27 | Optical imaging lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922074521.2U CN211014812U (en) | 2019-11-27 | 2019-11-27 | Optical imaging lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211014812U true CN211014812U (en) | 2020-07-14 |
Family
ID=71470488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922074521.2U Active CN211014812U (en) | 2019-11-27 | 2019-11-27 | Optical imaging lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211014812U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110749982A (en) * | 2019-11-27 | 2020-02-04 | 厦门力鼎光电股份有限公司 | Optical imaging lens |
| CN116184624A (en) * | 2022-12-19 | 2023-05-30 | 福建福光股份有限公司 | Compact large-light-transmission imaging lens |
-
2019
- 2019-11-27 CN CN201922074521.2U patent/CN211014812U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110749982A (en) * | 2019-11-27 | 2020-02-04 | 厦门力鼎光电股份有限公司 | Optical imaging lens |
| CN110749982B (en) * | 2019-11-27 | 2024-08-16 | 厦门力鼎光电股份有限公司 | Optical imaging lens |
| CN116184624A (en) * | 2022-12-19 | 2023-05-30 | 福建福光股份有限公司 | Compact large-light-transmission imaging lens |
| CN116184624B (en) * | 2022-12-19 | 2024-05-03 | 福建福光股份有限公司 | Compact large-light-transmission imaging lens |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110308541B (en) | Optical imaging lens | |
| CN212060718U (en) | Large-light-transmission high-resolution optical imaging lens | |
| CN111999869A (en) | Infrared confocal zoom lens | |
| CN211402908U (en) | Optical imaging lens | |
| CN110542997A (en) | Optical imaging lens | |
| CN211014812U (en) | Optical imaging lens | |
| CN211955960U (en) | Optical imaging lens with fixed focus and low chromatic aberration | |
| CN211180372U (en) | Optical imaging lens | |
| CN210626767U (en) | Optical imaging lens | |
| CN210626769U (en) | Optical imaging lens | |
| CN111722378A (en) | Large-image-plane high-resolution fisheye lens | |
| CN111638586A (en) | Glass-plastic mixed infrared confocal lens | |
| CN211149038U (en) | Optical imaging lens | |
| CN110749982B (en) | Optical imaging lens | |
| CN212647138U (en) | Infrared confocal zoom lens | |
| CN212321968U (en) | Large-image-plane high-resolution fisheye lens | |
| CN114895439A (en) | Optical imaging lens with ultra-wide angle and low distortion | |
| CN211402905U (en) | Wide-angle optical imaging lens | |
| CN211236424U (en) | Day and night dual-purpose optical imaging lens | |
| CN212321962U (en) | Glass-plastic mixed infrared confocal lens | |
| CN211554457U (en) | Optical imaging lens | |
| CN111103674B (en) | Optical imaging lens | |
| CN211014818U (en) | Zoom lens | |
| CN210294655U (en) | Optical imaging lens | |
| CN211293431U (en) | Wide-angle optical imaging lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |