CN114114650A - Optical lens and imaging apparatus - Google Patents
Optical lens and imaging apparatus Download PDFInfo
- Publication number
- CN114114650A CN114114650A CN202210097068.0A CN202210097068A CN114114650A CN 114114650 A CN114114650 A CN 114114650A CN 202210097068 A CN202210097068 A CN 202210097068A CN 114114650 A CN114114650 A CN 114114650A
- Authority
- CN
- China
- Prior art keywords
- lens
- optical
- denotes
- image
- optical lens
- 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.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
The invention discloses an optical lens and imaging equipment, the optical lens includes from the object side to the imaging surface along the optical axis in turn: the first lens with negative focal power has a convex object-side surface and a concave image-side surface; a second lens element having a positive optical power, the object-side surface of which is convex at the paraxial region and the image-side surface of which is convex; a diaphragm; a third lens having a positive refractive power, both the object-side surface and the image-side surface of the third lens being convex; a fourth lens element having a negative power, an object-side surface being convex at a paraxial region and an image-side surface being concave; a fifth lens element with positive refractive power having a concave object-side surface and a convex image-side surface; a sixth lens element with positive optical power having a convex object-side surface and at least one inflection point at a paraxial region and a concave image-side surface at a paraxial region. The optical lens has the advantages of large field angle, high pixel and miniaturization.
Description
Technical Field
The present invention relates to the field of imaging lens technology, and in particular, to an optical lens and an imaging device.
Background
In recent years, imaging lenses based on CCDs have been widely used in various fields, and in particular, wide-angle lenses including ultra-wide-angle lenses and fisheye lenses have been increasingly used. In the aspect of shooting, the wide-angle lens has the characteristics of short focus and large field of view, and can generate larger barrel distortion to create special effect and bring strong visual impact to an observer. In the aspect of measurement, the wide-angle lens can obtain more data by utilizing the characteristic of a large field of view in a single imaging mode so as to capture more scene information. Meanwhile, the demand for miniaturization of the lens is increasing in the market.
However, the reduction in size of the lens has a large influence on the imaging quality of the lens, especially for a large-field wide-angle lens. Therefore, there is a need for a high-quality imaging lens that combines a large field angle with miniaturization.
Disclosure of Invention
Therefore, an object of the present invention is to provide an optical lens and an imaging apparatus having advantages of a large angle of view, high pixels, and miniaturization.
The embodiment of the invention implements the above object by the following technical scheme.
In a first aspect, the present invention provides an optical lens, comprising, in order from an object side to an image plane along an optical axis: the lens comprises a first lens, a second lens and a third lens, wherein the first lens has negative focal power, the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface; a second lens having a positive optical power, an object-side surface of the second lens being convex at a paraxial region, an image-side surface of the second lens being convex; a diaphragm; a third lens having a positive focal power, wherein both an object-side surface of the third lens and an image-side surface of the third lens are convex; a fourth lens element having a negative optical power, an object-side surface of the fourth lens element being convex at a paraxial region and an image-side surface of the fourth lens element being concave; the fifth lens has positive focal power, the object-side surface of the fifth lens is a concave surface, and the image-side surface of the fifth lens is a convex surface; and a sixth lens having a positive optical power, an object-side surface of the sixth lens being convex at a paraxial region and having at least one inflection point, an image-side surface of the sixth lens being concave at a paraxial region and having at least one inflection point; wherein the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens are all aspheric lenses.
In a second aspect, the present invention provides an imaging apparatus, comprising an imaging element and the optical lens provided in the first aspect, wherein the imaging element is configured to convert an optical image formed by the optical lens into an electrical signal.
Compared with the prior art, the optical lens and the imaging equipment provided by the invention have the advantages that through the reasonable collocation of the six lenses with specific focal powers and lens shapes, the structure is more compact while high pixels are met, so that the miniaturization and high pixel balance of the wide-angle lens are better realized, the wide-angle lens has a large field angle, and the shooting experience of a user can be effectively improved.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of an optical lens according to a first embodiment of the present invention;
FIG. 2 is a distortion curve diagram of an optical lens according to a first embodiment of the present invention;
FIG. 3 is a vertical axis chromatic aberration diagram of an optical lens according to a first embodiment of the present invention;
FIG. 4 is a graph illustrating axial chromatic aberration of an optical lens according to a first embodiment of the present invention;
FIG. 5 is a schematic structural diagram of an optical lens system according to a second embodiment of the present invention;
FIG. 6 is a distortion curve diagram of an optical lens according to a second embodiment of the present invention;
FIG. 7 is a vertical axis chromatic aberration diagram of an optical lens according to a second embodiment of the present invention;
FIG. 8 is a graph illustrating axial chromatic aberration of an optical lens according to a second embodiment of the present invention;
FIG. 9 is a schematic structural diagram of an optical lens assembly according to a third embodiment of the present invention;
fig. 10 is a distortion graph of an optical lens according to a third embodiment of the present invention;
FIG. 11 is a vertical axis chromatic aberration diagram of an optical lens according to a third embodiment of the present invention;
FIG. 12 is a graph illustrating axial chromatic aberration of an optical lens according to a third embodiment of the present invention;
fig. 13 is a schematic configuration diagram of an image forming apparatus according to a fourth embodiment of the present invention.
Detailed Description
In order to make the objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. Several embodiments of the invention are presented in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Like reference numerals refer to like elements throughout the specification.
The present invention provides an optical lens, sequentially including, from an object side to an image plane along an optical axis: the image sensor comprises a first lens, a second lens, a diaphragm, a third lens, a fourth lens, a fifth lens, a sixth lens and a filter, wherein the object side is the side opposite to an image plane.
The first lens has negative focal power, the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface;
the second lens has positive focal power, the object side surface of the second lens is convex at a paraxial region, and the image side surface of the second lens is convex;
the third lens has positive focal power, and both the object side surface of the third lens and the image side surface of the third lens are convex surfaces;
the fourth lens has negative focal power, the object side surface of the fourth lens is convex at a paraxial region, and the image side surface of the fourth lens is concave;
the fifth lens has positive focal power, the object side surface of the fifth lens is a concave surface, and the image side surface of the fifth lens is a convex surface;
the sixth lens element has a positive optical power, an object-side surface of the sixth lens element being convex at a paraxial region and having at least one inflection point, and an image-side surface of the sixth lens element being concave at the paraxial region and having at least one inflection point;
in some optional embodiments, the optical lens satisfies the following conditional expression:
3<R1/f<45；（1）
where f denotes an effective focal length of the optical lens, and R1 denotes a radius of curvature of the object side surface of the first lens. When the condition (1) is satisfied, the optical lens can have an ultra-large wide angle and a smaller effective focal length, and the optical total length can be shortened.
In some optional embodiments, the optical lens satisfies the following conditional expression:
-1.5<f1/f<0；（2）
5<R1/R2<60；（3）
where f denotes an effective focal length of the optical lens, f1 denotes an effective focal length of the first lens, R1 denotes a radius of curvature of an object-side surface of the first lens, and R2 denotes a radius of curvature of an image-side surface of the first lens. When the conditional expressions (2) and (3) are satisfied, the surface type and the focal length of the first lens can be reasonably controlled, the aperture of the subsequent lens is reduced, and the optical lens is beneficial to realizing the volume miniaturization.
In some optional embodiments, the optical lens satisfies the following conditional expression:
0.15<SAG11/SAG12<0.45；（4）
wherein SAG11 represents the saggital height at the object side effective aperture of the first lens and SAG12 represents the saggital height at the image side effective aperture of the first lens. When the conditional expression (4) is satisfied, the degree of curvature of the first lens can be reasonably controlled, and the molding difficulty of the first lens can be reduced, thereby reducing the processing sensitivity and improving the yield.
In some optional embodiments, the optical lens satisfies the following conditional expression:
1<|R4/f2|<8；（5）
where R4 denotes a radius of curvature of the image-side surface of the second lens, and f2 denotes an effective focal length of the second lens. When the conditional expression (5) is satisfied, the curvature radius of the image side surface of the second lens and the focal length of the second lens can be reasonably controlled, the turning trend of light rays is slowed down, and the optical distortion is favorably corrected.
In some optional embodiments, the optical lens satisfies the following conditional expression:
3<R3/f3<8；（6）
3<R3/R5<6；（7）
where R3 denotes a radius of curvature of the object side surface of the second lens, R5 denotes a radius of curvature of the object side surface of the third lens, and f3 denotes an effective focal length of the third lens. When the conditional expressions (6) and (7) are met, the curvature radius of the object side surface of the second lens and the curvature radius of the object side surface of the third lens can be reasonably distributed, the aberration of an off-axis field and the aberration of a central field can be corrected, and the resolution quality of the optical lens is improved.
In some optional embodiments, the optical lens satisfies the following conditional expression:
-6<(f1+f2)/(f3+f4)<-2.5；（8）
where f1 denotes an effective focal length of the first lens, f2 denotes an effective focal length of the second lens, f3 denotes an effective focal length of the third lens, and f4 denotes an effective focal length of the fourth lens. When the conditional expression (8) is satisfied, the focal lengths of the first lens to the fourth lens can be reasonably distributed, and the reduction of the sensitivity of the optical lens and the correction difficulty of the high-order aberration are facilitated.
In some optional embodiments, the optical lens satisfies the following conditional expression:
-0.75<f5/f6<-0.6；（9）
where f5 denotes an effective focal length of the fifth lens, and f6 denotes an effective focal length of the sixth lens. When the conditional expression (9) is satisfied, the focal lengths of the fifth lens and the sixth lens can be reasonably matched, so that the structure is more compact, and the total length of the optical lens can be reduced.
In some optional embodiments, the optical lens satisfies the following conditional expression:
-1.5<(R9+R10)/(R11+R12)<-0.8；（10）
where R9 denotes a radius of curvature of an object-side surface of the fifth lens, R10 denotes a radius of curvature of an image-side surface of the fifth lens, R11 denotes a radius of curvature of an object-side surface of the sixth lens, and R12 denotes a radius of curvature of an image-side surface of the sixth lens. When the conditional expression (10) is satisfied, the light rays can have a smaller angle when entering the fifth lens and the sixth lens, and the optical distortion of the optical lens can be corrected.
In some optional embodiments, the optical lens satisfies the following conditional expression:
-1.5<R11/f6<-0.7；（11）
2.4<R11/R12<3.8；（12）
where f6 denotes an effective focal length of the sixth lens, R11 denotes a radius of curvature of an object-side surface of the sixth lens, and R12 denotes a radius of curvature of an image-side surface of the sixth lens. When the conditional expressions (11) and (12) are met, the surface type and the focal length of the sixth lens can be reasonably controlled, the optical total length is favorably shortened, and the balance of high imaging quality and small size of the optical lens is realized.
In some alternative embodiments, the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens are aspheric lenses. Optionally, the lenses are plastic aspheric lenses. By adopting the aspheric lens, the number of the lenses can be effectively reduced, aberration can be corrected, and better optical performance can be provided.
In each embodiment of the present invention, when the lenses in the optical lens are aspherical lenses, each aspherical surface type satisfies the following equation:
wherein z is the distance rise from the aspheric surface vertex when the aspheric surface is at the position of height h along the optical axis direction, c is the paraxial curvature of the surface, k is conic coefficient, A2iIs the aspheric surface type coefficient of 2i order.
The invention is further illustrated below in the following examples. In various embodiments, the thickness, the curvature radius, and the material selection of each lens in the optical lens are different, and the specific differences can be referred to in the parameter tables of the various embodiments. The following examples are only preferred embodiments of the present invention, but the embodiments of the present invention are not limited only by the following examples, and any other changes, substitutions, combinations or simplifications which do not depart from the innovative points of the present invention should be construed as being equivalent substitutions and shall be included within the scope of the present invention.
First embodiment
Referring to fig. 1, a schematic structural diagram of an optical lens 100 according to a first embodiment of the present invention is shown, where the optical lens 100 sequentially includes, from an object side to an image plane along an optical axis: a first lens L1, a second lens L2, a stop ST, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, and a filter G1.
The first lens element L1 has negative power, the object-side surface S1 of the first lens element is convex, and the image-side surface S2 of the first lens element is concave;
the second lens L2 has positive optical power, the object-side surface S3 of the second lens is convex at the paraxial region, and the image-side surface S4 of the second lens is convex;
the third lens L3 has positive focal power, the object-side surface S5 of the third lens is convex, and the image-side surface S6 of the third lens is convex;
the fourth lens element L4 has negative power, with an object-side surface S7 being convex at paraxial region and an image-side surface S8 being concave;
the fifth lens L5 has positive power, the object-side surface S9 of the fifth lens is concave, and the image-side surface S10 of the fifth lens is convex;
the sixth lens element L6 has positive optical power, an object-side surface S11 of the sixth lens element is convex at the paraxial region and has at least one inflection point, and an image-side surface S12 of the sixth lens element is concave at the paraxial region and has at least one inflection point.
Specifically, the design parameters of the optical lens 100 provided in the present embodiment are shown in table 1, where R represents a radius of curvature (unit: mm), d represents an optical surface distance (unit: mm), and n representsdD-line refractive index, V, of the materialdRepresents the abbe number of the material.
TABLE 1
The surface shape coefficients of the aspherical surfaces of the optical lens 100 in the present embodiment are shown in table 2.
TABLE 2
Referring to fig. 2, fig. 3 and fig. 4, a distortion curve, a vertical axis chromatic aberration curve and an axial chromatic aberration curve of the optical lens 100 are respectively shown.
The distortion curve of fig. 2 represents the distortion at different image heights on the imaging surface S15. In fig. 2, the horizontal axis represents the distortion percentage, and the vertical axis represents the angle of view (unit: degree). As can be seen from fig. 2, the f- θ distortion at different image heights on the image plane S15 is controlled to be within 10%, indicating that the distortion of the optical lens 100 is well corrected.
The vertical axis chromatic aberration curve in fig. 3 shows chromatic aberration at different image heights on the image forming surface S15 for the longest wavelength and the shortest wavelength. In fig. 3, the horizontal axis represents the homeotropic color difference (unit: μm) of each wavelength with respect to the center wavelength, and the vertical axis represents the normalized angle of view. As can be seen from fig. 3, the vertical chromatic aberration of the longest wavelength and the shortest wavelength is controlled within ± 2.5 μm, which indicates that the optical lens 100 can effectively correct the aberration of the fringe field and the secondary spectrum of the entire image plane.
The axial chromatic aberration curve of fig. 4 represents the aberration on the optical axis at the imaging plane S15. In fig. 4, the horizontal axis represents a sphere value (unit: mm) and the vertical axis represents a normalized pupil radius. As can be seen from fig. 4, the offset of the axial chromatic aberration is controlled within ± 0.02mm, which indicates that the axial chromatic aberration of the optical lens 100 is well corrected.
Second embodiment
Referring to fig. 5, an optical lens 200 according to a second embodiment of the present invention has substantially the same structure as the optical lens 100 according to the first embodiment, but the difference is mainly in the radius of curvature and the material selection of each lens.
The parameters associated with each lens of the optical lens 200 according to the second embodiment of the present invention are shown in table 3.
TABLE 3
The surface shape coefficients of the aspherical surfaces of the optical lens 200 in the present embodiment are shown in table 4.
TABLE 4
Referring to fig. 6, 7 and 8, a distortion curve, a vertical axis chromatic aberration curve and an axial chromatic aberration curve of the optical lens 200 are shown, respectively.
Fig. 6 shows distortion at different image heights on the image forming surface S15. As can be seen from fig. 6, the f- θ distortion at different image heights on the image plane S15 is controlled to be within 10%, indicating that the distortion of the optical lens 200 is well corrected.
Fig. 7 shows the chromatic aberration at different image heights on the image forming surface S15 for the longest wavelength and the shortest wavelength. As can be seen from fig. 7, the vertical chromatic aberration of the longest wavelength and the shortest wavelength is controlled within ± 2.5 μm, which indicates that the optical lens 200 can effectively correct the aberration of the fringe field and the secondary spectrum of the entire image plane.
Fig. 8 shows aberrations on the optical axis at the imaging plane. As can be seen from fig. 8, the offset of the axial chromatic aberration is controlled within ± 0.02mm, which indicates that the axial chromatic aberration of the optical lens 200 is well corrected.
Third embodiment
Referring to fig. 9, an optical lens 300 according to a third embodiment of the present invention has substantially the same structure as the optical lens 100 according to the first embodiment, and mainly differs in the radius of curvature and material selection of each lens.
The third embodiment of the present invention provides an optical lens 300, in which the relevant parameters of each lens are shown in table 5.
TABLE 5
The surface shape coefficients of the aspherical surfaces of the optical lens 300 in the present embodiment are shown in table 6.
TABLE 6
Referring to fig. 10, 11 and 12, a distortion curve, a vertical axis chromatic aberration curve and an axial chromatic aberration curve of the optical lens 300 are shown, respectively.
Fig. 10 shows distortion at different image heights on the image forming surface S15. As can be seen from fig. 10, the f- θ distortion at different image heights on the image plane S15 is controlled to be within 10%, indicating that the distortion of the optical lens 300 is well corrected.
Fig. 11 shows the chromatic aberration at different image heights on the image forming surface S15 for the longest wavelength and the shortest wavelength. As can be seen from fig. 11, the vertical chromatic aberration of the longest wavelength and the shortest wavelength is controlled within ± 2.5 μm, which indicates that the optical lens 300 can effectively correct the aberration of the fringe field and the secondary spectrum of the entire image plane.
Fig. 12 shows aberrations on the optical axis at the imaging plane S15. As can be seen from fig. 12, the shift amount of the axial chromatic aberration at the image forming surface S15 is controlled within ± 0.03mm, which indicates that the axial chromatic aberration of the optical lens 300 is well corrected.
Referring to table 7, optical characteristics corresponding to the optical lenses provided in the three embodiments are shown. The optical characteristics mainly include an effective focal length F, an F # of the optical lens, an entrance pupil diameter EPD, a total optical length TTL, and a field angle 2 θ, and a correlation value corresponding to each of the aforementioned conditional expressions.
TABLE 7
In summary, the optical lens provided by the invention has at least the following advantages:
(1) because the shapes of the diaphragm and each lens are reasonably arranged, on one hand, the optical lens has a smaller entrance pupil diameter (EPD <0.71 mm), so that the outer diameter of the head of the lens can be smaller, and the requirement of high screen ratio is met; on the other hand, the total length of the optical lens is shorter (TTL <5.8 mm), the volume is reduced, and the development trend of light and thin portable intelligent electronic products such as mobile phones can be better met.
(2) Six plastic aspheric lenses with specific focal power are adopted, and the lenses are matched through specific surface shapes, so that the optical lens has high imaging quality of pixels, the field angle of the optical lens can reach 151 degrees, optical distortion can be effectively corrected, the f-theta distortion is controlled to be less than 10 percent, and the requirements of large field angle and high-definition imaging can be met.
Fourth embodiment
Referring to fig. 13, an imaging device 400 according to a fourth embodiment of the present invention is shown, where the imaging device 400 may include an imaging element 410 and an optical lens (e.g., the optical lens 100) in any of the embodiments described above. The imaging element 410 may be a CMOS (Complementary Metal Oxide Semiconductor) image sensor, and may also be a CCD (Charge Coupled Device) image sensor.
The imaging device 400 may be a smart phone, a tablet computer, a monitoring device, or any other electronic device equipped with the optical lens.
The imaging apparatus 400 provided by the present embodiment includes the optical lens 100, and since the optical lens 100 has advantages of large field angle, high pixel, and miniaturization, the imaging apparatus 400 having the optical lens 100 also has advantages of large field angle, high pixel, and miniaturization.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above examples are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (11)
1. An optical lens, comprising, in order from an object side to an image plane along an optical axis:
the lens comprises a first lens, a second lens and a third lens, wherein the first lens has negative focal power, the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface;
a second lens having a positive optical power, an object-side surface of the second lens being convex at a paraxial region, an image-side surface of the second lens being convex;
a diaphragm;
a third lens having a positive focal power, wherein both an object-side surface of the third lens and an image-side surface of the third lens are convex;
a fourth lens element having a negative optical power, an object-side surface of the fourth lens element being convex at a paraxial region and an image-side surface of the fourth lens element being concave;
the fifth lens has positive focal power, the object-side surface of the fifth lens is a concave surface, and the image-side surface of the fifth lens is a convex surface; and
a sixth lens having a positive optical power, an object side surface of the sixth lens being convex at a paraxial region and having at least one inflection point, an image side surface of the sixth lens being concave at a paraxial region and having at least one inflection point;
wherein the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens are all aspheric lenses.
2. An optical lens according to claim 1, characterized in that the optical lens satisfies the following conditional expression:
3<R1/f<45；
where f denotes an effective focal length of the optical lens, and R1 denotes a radius of curvature of an object side surface of the first lens.
3. An optical lens according to claim 1, characterized in that the optical lens satisfies the following conditional expression:
-1.5<f1/f<0；
5<R1/R2<60；
where f denotes an effective focal length of the optical lens, f1 denotes an effective focal length of the first lens, R1 denotes a radius of curvature of an object-side surface of the first lens, and R2 denotes a radius of curvature of an image-side surface of the first lens.
4. An optical lens according to claim 1, characterized in that the optical lens satisfies the following conditional expression:
0.15<SAG11/SAG12<0.45；
wherein SAG11 represents the saggital height at the object side effective aperture of the first lens and SAG12 represents the saggital height at the image side effective aperture of the first lens.
5. An optical lens according to claim 1, characterized in that the optical lens satisfies the following conditional expression:
1<|R4/f2|<8；
wherein R4 represents a radius of curvature of an image side surface of the second lens, and f2 represents an effective focal length of the second lens.
6. An optical lens according to claim 1, characterized in that the optical lens satisfies the following conditional expression:
3<R3/f3<8；
3<R3/R5<6；
wherein R3 denotes a radius of curvature of an object side surface of the second lens, R5 denotes a radius of curvature of an object side surface of the third lens, and f3 denotes an effective focal length of the third lens.
7. An optical lens according to claim 1, characterized in that the optical lens satisfies the following conditional expression:
-6<(f1+f2)/(f3+f4)<-2.5；
wherein f1 denotes an effective focal length of the first lens, f2 denotes an effective focal length of the second lens, f3 denotes an effective focal length of the third lens, and f4 denotes an effective focal length of the fourth lens.
8. An optical lens according to claim 1, characterized in that the optical lens satisfies the following conditional expression:
-0.75<f5/f6<-0.6；
wherein f5 denotes an effective focal length of the fifth lens, and f6 denotes an effective focal length of the sixth lens.
9. An optical lens according to claim 1, characterized in that the optical lens satisfies the following conditional expression:
-1.5<(R9+R10)/(R11+R12)<-0.8；
wherein R9 denotes a radius of curvature of an object-side surface of the fifth lens, R10 denotes a radius of curvature of an image-side surface of the fifth lens, R11 denotes a radius of curvature of an object-side surface of the sixth lens, and R12 denotes a radius of curvature of an image-side surface of the sixth lens.
10. An optical lens according to claim 1, characterized in that the optical lens satisfies the following conditional expression:
-1.5<R11/f6<-0.7；
2.4<R11/R12<3.8；
where f6 denotes an effective focal length of the sixth lens, R11 denotes a radius of curvature of an object-side surface of the sixth lens, and R12 denotes a radius of curvature of an image-side surface of the sixth lens.
11. An imaging apparatus comprising the optical lens according to any one of claims 1 to 10 and an imaging element for converting an optical image formed by the optical lens into an electric signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210097068.0A CN114114650B (en) | 2022-01-27 | 2022-01-27 | Optical lens and imaging apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210097068.0A CN114114650B (en) | 2022-01-27 | 2022-01-27 | Optical lens and imaging apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114114650A true CN114114650A (en) | 2022-03-01 |
| CN114114650B CN114114650B (en) | 2022-07-22 |
Family
ID=80361683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210097068.0A Active CN114114650B (en) | 2022-01-27 | 2022-01-27 | Optical lens and imaging apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114114650B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114563865A (en) * | 2022-04-29 | 2022-05-31 | 江西联益光学有限公司 | Optical lens and imaging apparatus |
| CN114578517A (en) * | 2022-03-14 | 2022-06-03 | 江西特莱斯光学有限公司 | Ultrashort large-target-surface TOF optical lens |
| CN115407487A (en) * | 2022-08-25 | 2022-11-29 | 嘉兴中润光学科技股份有限公司 | Vehicle-mounted lens and imaging device |
| CN116299994A (en) * | 2023-05-22 | 2023-06-23 | 江西联益光学有限公司 | Optical lens |
| CN117406400A (en) * | 2023-12-14 | 2024-01-16 | 江西联创电子有限公司 | Optical lens |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103605200A (en) * | 2013-10-30 | 2014-02-26 | 宁波舜宇车载光学技术有限公司 | Optical lens |
| CN105204144A (en) * | 2015-10-20 | 2015-12-30 | 浙江舜宇光学有限公司 | Super-wide-angle lens |
| JP2017037119A (en) * | 2015-08-07 | 2017-02-16 | 日立マクセル株式会社 | Wide-angle image capturing lens system and image capturing device |
| CN106646835A (en) * | 2016-08-08 | 2017-05-10 | 浙江舜宇光学有限公司 | Wide-angle lens |
| CN108375825A (en) * | 2018-05-03 | 2018-08-07 | 浙江舜宇光学有限公司 | Optical imaging lens |
| CN110286474A (en) * | 2019-07-24 | 2019-09-27 | 浙江舜宇光学有限公司 | Optical imaging system |
| CN110531502A (en) * | 2019-10-09 | 2019-12-03 | 浙江舜宇光学有限公司 | Optical imaging lens |
| CN111025583A (en) * | 2019-12-27 | 2020-04-17 | 浙江舜宇光学有限公司 | Optical imaging lens |
| CN111338060A (en) * | 2020-05-21 | 2020-06-26 | 江西联益光学有限公司 | Optical lens and imaging apparatus |
| CN112485885A (en) * | 2019-09-12 | 2021-03-12 | 信泰光学(深圳)有限公司 | Imaging lens |
-
2022
- 2022-01-27 CN CN202210097068.0A patent/CN114114650B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103605200A (en) * | 2013-10-30 | 2014-02-26 | 宁波舜宇车载光学技术有限公司 | Optical lens |
| JP2017037119A (en) * | 2015-08-07 | 2017-02-16 | 日立マクセル株式会社 | Wide-angle image capturing lens system and image capturing device |
| CN105204144A (en) * | 2015-10-20 | 2015-12-30 | 浙江舜宇光学有限公司 | Super-wide-angle lens |
| CN106646835A (en) * | 2016-08-08 | 2017-05-10 | 浙江舜宇光学有限公司 | Wide-angle lens |
| CN108375825A (en) * | 2018-05-03 | 2018-08-07 | 浙江舜宇光学有限公司 | Optical imaging lens |
| CN110286474A (en) * | 2019-07-24 | 2019-09-27 | 浙江舜宇光学有限公司 | Optical imaging system |
| CN112485885A (en) * | 2019-09-12 | 2021-03-12 | 信泰光学(深圳)有限公司 | Imaging lens |
| CN110531502A (en) * | 2019-10-09 | 2019-12-03 | 浙江舜宇光学有限公司 | Optical imaging lens |
| CN111025583A (en) * | 2019-12-27 | 2020-04-17 | 浙江舜宇光学有限公司 | Optical imaging lens |
| CN111338060A (en) * | 2020-05-21 | 2020-06-26 | 江西联益光学有限公司 | Optical lens and imaging apparatus |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114578517A (en) * | 2022-03-14 | 2022-06-03 | 江西特莱斯光学有限公司 | Ultrashort large-target-surface TOF optical lens |
| CN114578517B (en) * | 2022-03-14 | 2024-01-02 | 江西特莱斯光学有限公司 | Ultra-short large target surface TOF optical lens |
| CN114563865A (en) * | 2022-04-29 | 2022-05-31 | 江西联益光学有限公司 | Optical lens and imaging apparatus |
| CN115407487A (en) * | 2022-08-25 | 2022-11-29 | 嘉兴中润光学科技股份有限公司 | Vehicle-mounted lens and imaging device |
| CN116299994A (en) * | 2023-05-22 | 2023-06-23 | 江西联益光学有限公司 | Optical lens |
| CN116299994B (en) * | 2023-05-22 | 2023-09-01 | 江西联益光学有限公司 | optical lens |
| CN117406400A (en) * | 2023-12-14 | 2024-01-16 | 江西联创电子有限公司 | Optical lens |
| CN117406400B (en) * | 2023-12-14 | 2024-03-29 | 江西联创电子有限公司 | Optical lens |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114114650B (en) | 2022-07-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108761743B (en) | Seven-piece wide-angle lens | |
| CN112230371B (en) | Optical lens and imaging apparatus | |
| CN111338060B (en) | Optical lens and imaging apparatus | |
| CN114114650B (en) | Optical lens and imaging apparatus | |
| CN112034600B (en) | Optical lens and imaging apparatus | |
| CN114089512B (en) | Optical lens and imaging apparatus | |
| CN114185157B (en) | Optical lens | |
| CN112014957B (en) | Optical lens and imaging apparatus | |
| CN112987262B (en) | Optical lens and imaging apparatus | |
| CN112684594B (en) | Optical lens and imaging apparatus | |
| CN113433674B (en) | Optical lens and imaging apparatus | |
| CN114236790A (en) | Optical lens and imaging apparatus | |
| CN113820835B (en) | Optical lens and imaging apparatus | |
| CN113156612B (en) | Optical system, image capturing module and electronic equipment | |
| CN112505901B (en) | Optical lens and imaging apparatus | |
| CN112505902A (en) | Wide-angle lens and imaging apparatus | |
| CN115079386B (en) | Optical lens and imaging apparatus | |
| CN114675407B (en) | Optical system, lens module and electronic equipment | |
| CN113960759B (en) | Optical lens, camera module and electronic equipment | |
| CN113253429B (en) | Wide-angle lens and imaging apparatus | |
| CN113448062B (en) | Wide-angle lens and imaging apparatus | |
| CN112526729B (en) | Optical lens and imaging apparatus | |
| CN114326052A (en) | Optical system, image capturing module and electronic equipment | |
| CN113238338A (en) | Optical lens and imaging apparatus | |
| CN114326062B (en) | Optical lens and imaging apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |