CN114200648B - High-definition optical imaging lens and electronic equipment - Google Patents
High-definition optical imaging lens and electronic equipment Download PDFInfo
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- CN114200648B CN114200648B CN202111556155.XA CN202111556155A CN114200648B CN 114200648 B CN114200648 B CN 114200648B CN 202111556155 A CN202111556155 A CN 202111556155A CN 114200648 B CN114200648 B CN 114200648B
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- 238000012634 optical imaging Methods 0.000 title claims abstract description 124
- 238000003384 imaging method Methods 0.000 claims abstract description 27
- 230000003287 optical effect Effects 0.000 claims abstract description 11
- 230000004304 visual acuity Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 21
- 230000004075 alteration Effects 0.000 description 14
- 201000009310 astigmatism Diseases 0.000 description 10
- 238000005452 bending Methods 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
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- Optics & Photonics (AREA)
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Abstract
The invention discloses a high-definition optical imaging lens and electronic equipment, comprising a first lens, a second lens and a fourth lens, wherein the object side surface and the image side surface of the first lens are respectively a convex surface and a concave surface, the object side surface and the image side surface of the fifth lens are respectively a concave surface and a convex surface, and the object side surface and the image side surface of the sixth lens are respectively concave surfaces; the first, third and fifth lenses have positive refractive power, and the second, fourth and sixth lenses have negative refractive power. The lens satisfies the following relation: 7.2 < f× (TTL/ImgH) < 8.0; f is the focal length of the high-definition optical imaging lens, TTL is the total optical length of the high-definition optical imaging lens, and ImgH is half of the diagonal length of the effective pixel area on the imaging surface of the high-definition optical imaging lens. The invention limits the focal length, the optical total length and the effective pixel area of the high-definition optical imaging lens, so that the high-definition optical imaging lens has the characteristics of large image surface, light and thin volume and good resolving power, thereby meeting the market demand.
Description
Technical Field
The present invention relates to the field of optical imaging technologies, and in particular, to a high-definition optical imaging lens and an electronic device.
Background
With the rise of short video social platforms, various electronic products with cameras are layered endlessly nowadays, and in order to achieve portability of the electronic devices, the electronic devices are gradually developed towards light and thin, which requires that the matched imaging lens also has light and thin characteristics.
However, in order to make the imaging effect meet the use requirement, the number of lenses included in the imaging lens is difficult to further reduce on the basis of the prior art, if one service is light and thin, the imaging lens is difficult to realize 4K resolution, and meanwhile, the image surface of the lens is smaller, so that the imaging effect is difficult to meet the market requirement.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a high-definition optical imaging lens and electronic equipment, which solve the problems that the number of lenses contained in the imaging lens in the prior art is difficult to further reduce on the basis of the prior art, the imaging lens is difficult to realize 4K resolution, and meanwhile, the imaging effect of the lens is difficult to meet market demands due to smaller image surface.
In order to achieve the above object, the present invention provides the following technical solutions:
the high-definition optical image capturing lens comprises a diaphragm, a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens which are sequentially arranged along the direction from an object side to an image side, wherein each of the surfaces from the object side of the first lens to the image side of the sixth lens is an aspheric surface;
the first lens element with positive refractive power has a convex object-side surface at a paraxial region and a concave image-side surface at a paraxial region;
the second lens element with negative refractive power has a convex object-side surface at a paraxial region and a concave image-side surface at a paraxial region;
the third lens element with positive refractive power;
the fourth lens element with negative refractive power has a convex object-side surface at a paraxial region and a concave image-side surface at a paraxial region;
the fifth lens element with positive refractive power has a concave object-side surface at a paraxial region and a convex image-side surface at a paraxial region;
the sixth lens element with negative refractive power has a concave object-side surface at a paraxial region and a concave image-side surface at a paraxial region;
the high-definition optical imaging lens meets the following relation:
7.2＜f×(TTL/ImgH)＜8.0；
wherein f is the focal length of the high-definition optical imaging lens, TTL is the total optical length of the high-definition optical imaging lens, and ImgH is half of the diagonal length of the effective pixel area on the imaging surface of the high-definition optical imaging lens.
Optionally, the high-definition optical imaging lens further satisfies the following relation:
2.1＜f/f1+f/f5＜2.7；
wherein f1 is the focal length of the first lens, and f5 is the focal length of the fifth lens.
Optionally, the high-definition optical imaging lens further satisfies the following relation:
13.9＜f4/f6＜15.1；
wherein f4 is the focal length of the fourth lens, and f6 is the focal length of the sixth lens.
Optionally, the high-definition optical imaging lens further satisfies the following relation:
4.0＜f3/f1-f4/f2＜7.6；
wherein f1 is the focal length of the first lens, f2 is the focal length of the second lens, f3 is the focal length of the third lens, and f4 is the focal length of the fourth lens.
Optionally, the high-definition optical imaging lens further satisfies the following relation:
2.0＜f1/R11＜2.5；
wherein f1 is a focal length of the first lens, and R11 is a radius of curvature of an object-side surface of the first lens.
Optionally, the high-definition optical imaging lens further satisfies the following relation:
0.7＜f/R62＜1.7；
wherein R62 is the radius of curvature of the sixth lens image side surface.
Optionally, the high-definition optical imaging lens further satisfies the following relation:
1.5＜R41/R42＜3.5；
wherein R41 is the radius of curvature of the object-side surface of the fourth lens, and R42 is the radius of curvature of the image-side surface of the fourth lens.
Optionally, the high-definition optical imaging lens further satisfies the following relation:
2.7＜ImgH/Fno；
wherein ImgH is half of the diagonal length of the effective pixel region on the imaging surface of the high-definition optical imaging lens, and Fno is the aperture value of the high-definition optical imaging lens.
Optionally, the high-definition optical imaging lens further satisfies the following relation:
5.0＜f×tan(HFOV)＜5.7；
the HFOV is the half field angle of the high definition optical imaging lens.
An electronic device comprising a high definition optical imaging lens as claimed in any one of the preceding claims.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a high-definition optical imaging lens and electronic equipment, which can ensure that the high-definition optical imaging lens has the characteristics of large image surface and light and thin volume and has good resolving power by limiting the focal length, the optical total length and the effective pixel area of the high-definition optical imaging lens, thereby meeting the market demand.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic view of a high-definition optical imaging lens according to a first embodiment of the present invention;
fig. 2 is a graph of astigmatism and distortion of a high-definition optical imaging lens according to a first embodiment of the present invention;
FIG. 3 is a spherical aberration diagram of a high-definition optical imaging lens according to a first embodiment of the present invention;
fig. 4 is a schematic diagram of a high-definition optical imaging lens according to a second embodiment of the present invention;
fig. 5 is a graph of astigmatism and distortion of a high-definition optical imaging lens according to a second embodiment of the present invention;
FIG. 6 is a spherical aberration diagram of a high-definition optical imaging lens according to a second embodiment of the present invention;
fig. 7 is a schematic diagram of a high-definition optical imaging lens according to a third embodiment of the present invention;
fig. 8 is a graph of astigmatism and distortion of a high-definition optical imaging lens according to a third embodiment of the present invention;
FIG. 9 is a spherical aberration diagram of a high-definition optical imaging lens according to a third embodiment of the present invention;
fig. 10 is a schematic diagram of a high-definition optical imaging lens according to a fourth embodiment of the present invention;
FIG. 11 is a graph showing astigmatism and distortion of a high-definition optical imaging lens according to a fourth embodiment of the present invention;
FIG. 12 is a spherical aberration diagram of a high-definition optical imaging lens according to a fourth embodiment of the present invention;
fig. 13 is a schematic diagram of a high-definition optical imaging lens according to a fifth embodiment of the present invention;
fig. 14 is a graph of astigmatism and distortion of a high-definition optical imaging lens according to a fifth embodiment of the present invention;
fig. 15 is a spherical aberration diagram of a high-definition optical imaging lens according to a fifth embodiment of the present invention.
In the above figures: e1, a first lens; e2, a second lens; e3, a third lens; e4, a fourth lens; e5, a fifth lens; e6, a sixth lens; e7, an infrared filter; STO and diaphragm; s1, an object side surface of a first lens; s2, the image side surface of the first lens; s3, the object side surface of the second lens; s4, the image side surface of the second lens; s5, the object side surface of the third lens is provided; s6, the image side surface of the third lens; s7, the object side surface of the fourth lens is provided; s8, the image side surface of the fourth lens is provided; s9, the object side surface of the fifth lens is provided; s10, an image side surface of the fifth lens; s11, the object side surface of the sixth lens; s12, an image side surface of the sixth lens; s13, an imaging surface.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only some embodiments of the present invention, not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it will be understood that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.
Furthermore, the terms "long," "short," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, for convenience of description of the present invention, and are not intended to indicate or imply that the apparatus or elements referred to must have this particular orientation, operate in a particular orientation configuration, and thus should not be construed as limiting the invention.
A high-definition optical image capturing lens comprises a diaphragm, a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens which are sequentially arranged along the direction from an object side to an image side, wherein each of the surfaces from the object side of the first lens to the image side of the sixth lens is an aspheric surface.
Specifically, the bending force of each surface type and the surface type are matched as follows:
the first lens element with positive refractive power has a convex object-side surface at a paraxial region and a concave image-side surface at a paraxial region;
the second lens element with negative refractive power has a convex object-side surface at a paraxial region and a concave image-side surface at a paraxial region;
the third lens element with positive refractive power;
the fourth lens element with negative refractive power has a convex object-side surface at a paraxial region and a concave image-side surface at a paraxial region;
the fifth lens element with positive refractive power has a concave object-side surface at a paraxial region and a convex image-side surface at a paraxial region;
the sixth lens element with negative refractive power has a concave object-side surface at a paraxial region and a concave image-side surface at a paraxial region.
The high-definition optical imaging lens meets the following relation: 7.2 < f× (TTL/ImgH) < 8.0; wherein f is the focal length of the high-definition optical imaging lens, TTL is the total optical length of the high-definition optical imaging lens, and ImgH is half of the diagonal length of the effective pixel area on the imaging surface of the high-definition optical imaging lens. By limiting the focal length, the optical total length and the effective pixel area of the high-definition optical imaging lens, the high-definition optical imaging lens can have the characteristics of large image surface and light and thin volume, and has good resolving power, so that market demands are met.
Further, the high-definition optical imaging lens also satisfies the following relation: 2.1 < f/f1+f5 < 2.7; wherein f1 is the focal length of the first lens, and f5 is the focal length of the fifth lens. The spherical aberration contribution of the front end lens and the rear end lens can be controlled within a reasonable range by limiting the sum of the ratio between the focal lengths of the front end lens and the rear end lens and the focal length of the high-definition optical imaging lens, so that the imaging quality of the high-definition optical imaging lens in an on-axis visual field area is effectively improved, and the 4K resolution of the high-definition optical imaging lens is facilitated.
Further, the high-definition optical imaging lens also satisfies the following relation: 13.9 < f4/f6 < 15.1; wherein f4 is the focal length of the fourth lens, and f6 is the focal length of the sixth lens. The ratio of the focal length between the fourth lens and the sixth lens is limited, so that the imaging angle of the high-definition optical imaging lens is increased, the effect of wide-range framing is achieved, and the imaging surface is further increased.
Further, the high-definition optical imaging lens also satisfies the following relation: f3/f1-f4/f2 is more than 4.0 and less than 7.6; wherein f1 is the focal length of the first lens, f2 is the focal length of the second lens, f3 is the focal length of the third lens, and f4 is the focal length of the fourth lens. By satisfying the above relation, the assembling sensitivity of the high-definition optical imaging lens can be reduced.
Further, the high-definition optical imaging lens also satisfies the following relation: f1/R11 is more than 2.0 and less than 2.5; wherein f1 is a focal length of the first lens, and R11 is a radius of curvature of an object-side surface of the first lens. Therefore, the reasonable distribution of the surface type and the focal length of the first lens is realized, so that the optical system has better imaging quality and lower sensitivity.
Further, the high-definition optical imaging lens also satisfies the following relation: f/R62 is more than 0.7 and less than 1.7; wherein R62 is the radius of curvature of the sixth lens image side surface. The shape of the sixth lens is defined by the conditional expression, which contributes to a reduction in the degree of light ray deflection, thereby achieving the purpose of reducing aberration.
Further, the high-definition optical imaging lens also satisfies the following relation: R41/R42 is more than 1.5 and less than 3.5; wherein R41 is the radius of curvature of the object-side surface of the fourth lens, and R42 is the radius of curvature of the image-side surface of the fourth lens. Therefore, the curvature of field of each view field in the fourth lens is balanced in a reasonable range, so that the high-definition optical imaging lens has better imaging quality.
Further, the high-definition optical imaging lens also satisfies the following relation: 2.7 < ImgH/FNo; wherein ImgH is half of the diagonal length of the effective pixel region on the imaging surface of the high-definition optical imaging lens, and Fno is the aperture value of the high-definition optical imaging lens. When the relation is satisfied, the oversized photosensitive surface of the high-definition optical imaging lens is realized, so that the high-definition optical imaging lens has the characteristic of large aperture.
Further, the high-definition optical imaging lens also satisfies the following relation: 5.0 < f×tan (HFOV) < 5.7; the HFOV is the half field angle of the high definition optical imaging lens. By means of the relation, the relation between the effective focal length and the view field angle of the high-definition optical imaging lens can be limited, and the relation is matched with the use of the aspheric surface of the lens, so that chromatic aberration, spherical aberration and distortion of the high-definition optical imaging lens are balanced, and good imaging quality is obtained.
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
Example 1
Referring to fig. 1 to 3, fig. 1 is a schematic diagram of a high-definition optical imaging lens according to a first embodiment of the present invention, fig. 2 is an astigmatism and distortion graph of the high-definition optical imaging lens according to the first embodiment of the present invention, and fig. 3 is a spherical aberration graph of the high-definition optical imaging lens according to the first embodiment of the present invention.
The high-definition optical imaging lens provided in this embodiment of the disclosure includes a stop STO, a first lens element E1, a second lens element E2, a third lens element E3, a fourth lens element E4, a fifth lens element E5, and a sixth lens element E6 sequentially disposed along a direction from an object side to an image side, wherein each of the object side surface of the first lens element E1 to the image side surface of the sixth lens element E6 is aspheric.
Specifically, the bending force of each surface type and the surface type are matched as follows:
the first lens element E1 with positive refractive power has a convex object-side surface S1 at a paraxial region and a concave image-side surface S2 at a paraxial region;
the second lens element E2 with negative refractive power has a convex object-side surface S3 at a paraxial region and a concave image-side surface S4 at a paraxial region;
the third lens element E3 with positive refractive power has a convex object-side surface S5 at a paraxial region and a convex image-side surface S6 at a paraxial region;
the fourth lens element E4 with negative refractive power has a convex object-side surface S7 at a paraxial region and a concave image-side surface S8 at a paraxial region;
the fifth lens element E5 with positive refractive power has a concave object-side surface S9 at a paraxial region and a convex image-side surface S10 at a paraxial region;
the sixth lens element E6 with negative refractive power has a concave object-side surface S11 at a paraxial region and a concave image-side surface S12 at a paraxial region.
In addition, the high-definition optical imaging lens further comprises an infrared filter E7, wherein the infrared filter E7 is arranged between the third lens E3 and the imaging surface S13, and infrared band light entering the lens is filtered through the infrared filter E7, so that noise generated when infrared light irradiates the photosensitive chip is avoided. Specifically, the infrared filter E7 may be made of glass.
Please refer to the following tables 1-1, 1-2 and 1-3.
Table 1-1 shows detailed structural data of an embodiment, wherein the unit of curvature radius, thickness and focal length is millimeter, f is the focal length of the optical imaging lens, fno is the aperture value, and HFOV is half of the maximum field angle of the optical imaging lens.
Tables 1 to 2 are aspherical coefficient data in the first embodiment, wherein k represents the cone coefficients in the aspherical curve equation, and A4, A6, A8, a10, a12, a14 and a16 represent the 4 th, 6, 8, 10, 12, 14 and 16 th order aspherical coefficients of each surface.
Tables 1 to 3 show conditions satisfied by the optical imaging lens in the first embodiment.
In addition, the following tables of the embodiments are schematic diagrams and graphs corresponding to the embodiments, and the definition of data in the tables is the same as that of tables 1-1, 1-2 and 1-3 of the first embodiment, and will not be described herein.
Example two
Referring to fig. 4 to 6, fig. 4 is a schematic diagram of a high-definition optical imaging lens according to a second embodiment of the present invention, fig. 5 is an astigmatism and distortion curve diagram of the high-definition optical imaging lens according to the second embodiment of the present invention, and fig. 6 is a spherical aberration curve diagram of the high-definition optical imaging lens according to the second embodiment of the present invention.
Based on the foregoing embodiments, the high-definition optical imaging lens provided in this embodiment includes the stop STO, the first lens E1, the second lens E2, the third lens E3, the fourth lens E4, the fifth lens E5 and the sixth lens E6 sequentially disposed along the direction from the object side to the image side, and each of the object side surface of the first lens E1 to the image side surface of the sixth lens E6 is an aspheric surface.
Specifically, the bending force of each surface type and the surface type are matched as follows:
the first lens element E1 with positive refractive power has a convex object-side surface S1 at a paraxial region and a concave image-side surface S2 at a paraxial region;
the second lens element E2 with negative refractive power has a convex object-side surface S3 at a paraxial region and a concave image-side surface S4 at a paraxial region;
the third lens element E3 with positive refractive power has a concave object-side surface S5 at a paraxial region and a convex image-side surface S6 at a paraxial region;
the fourth lens element E4 with negative refractive power has a convex object-side surface S7 at a paraxial region and a concave image-side surface S8 at a paraxial region;
the fifth lens element E5 with positive refractive power has a concave object-side surface S9 at a paraxial region and a convex image-side surface S10 at a paraxial region;
the sixth lens element E6 with negative refractive power has a concave object-side surface S11 at a paraxial region and a concave image-side surface S12 at a paraxial region.
In addition, the high-definition optical imaging lens further comprises an infrared filter E7, wherein the infrared filter E7 is arranged between the third lens E3 and the imaging surface S13, and infrared band light entering the lens is filtered through the infrared filter E7, so that noise generated when infrared light irradiates the photosensitive chip is avoided. Specifically, the infrared filter E7 may be made of glass.
Please refer to the following tables 2-1, 2-2 and 2-3.
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Example III
Referring to fig. 7 to 9, fig. 7 is a schematic diagram of a high-definition optical imaging lens according to a third embodiment of the present invention, fig. 8 is an astigmatism and distortion curve diagram of the high-definition optical imaging lens according to the third embodiment of the present invention, and fig. 9 is a spherical aberration curve diagram of the high-definition optical imaging lens according to the third embodiment of the present invention.
Based on the foregoing embodiments, the high-definition optical imaging lens provided in this embodiment includes the stop STO, the first lens E1, the second lens E2, the third lens E3, the fourth lens E4, the fifth lens E5 and the sixth lens E6 sequentially disposed along the direction from the object side to the image side, and each of the object side surface of the first lens E1 to the image side surface of the sixth lens E6 is an aspheric surface.
Specifically, the bending force of each surface type and the surface type are matched as follows:
the first lens element E1 with positive refractive power has a convex object-side surface S1 at a paraxial region and a concave image-side surface S2 at a paraxial region;
the second lens element E2 with negative refractive power has a convex object-side surface S3 at a paraxial region and a concave image-side surface S4 at a paraxial region;
the third lens element E3 with positive refractive power has a convex object-side surface S5 at a paraxial region and a convex image-side surface S6 at a paraxial region;
the fourth lens element E4 with negative refractive power has a convex object-side surface S7 at a paraxial region and a concave image-side surface S8 at a paraxial region;
the fifth lens element E5 with positive refractive power has a concave object-side surface S9 at a paraxial region and a convex image-side surface S10 at a paraxial region;
the sixth lens element E6 with negative refractive power has a concave object-side surface S11 at a paraxial region and a concave image-side surface S12 at a paraxial region.
In addition, the high-definition optical imaging lens further comprises an infrared filter E7, wherein the infrared filter E7 is arranged between the third lens E3 and the imaging surface S13, and infrared band light entering the lens is filtered through the infrared filter E7, so that noise generated when infrared light irradiates the photosensitive chip is avoided. Specifically, the infrared filter E7 may be made of glass.
Please refer to the following tables 3-1, 3-2 and 3-3.
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Example IV
Referring to fig. 10 to 12, fig. 10 is a schematic diagram of a high-definition optical imaging lens according to a fourth embodiment of the present invention, fig. 11 is an astigmatism and distortion curve diagram of the high-definition optical imaging lens according to the fourth embodiment of the present invention, and fig. 12 is a spherical aberration curve diagram of the high-definition optical imaging lens according to the fourth embodiment of the present invention.
Based on the foregoing embodiments, the high-definition optical imaging lens provided in this embodiment includes the stop STO, the first lens E1, the second lens E2, the third lens E3, the fourth lens E4, the fifth lens E5 and the sixth lens E6 sequentially disposed along the direction from the object side to the image side, and each of the object side surface of the first lens E1 to the image side surface of the sixth lens E6 is an aspheric surface.
Specifically, the bending force of each surface type and the surface type are matched as follows:
the first lens element E1 with positive refractive power has a convex object-side surface S1 at a paraxial region and a concave image-side surface S2 at a paraxial region;
the second lens element E2 with negative refractive power has a convex object-side surface S3 at a paraxial region and a concave image-side surface S4 at a paraxial region;
the third lens element E3 with positive refractive power has a convex object-side surface S5 at a paraxial region and a concave image-side surface S6 at a paraxial region;
the fourth lens element E4 with negative refractive power has a convex object-side surface S7 at a paraxial region and a concave image-side surface S8 at a paraxial region;
the fifth lens element E5 with positive refractive power has a concave object-side surface S9 at a paraxial region and a convex image-side surface S10 at a paraxial region;
the sixth lens element E6 with negative refractive power has a concave object-side surface S11 at a paraxial region and a concave image-side surface S12 at a paraxial region.
In addition, the high-definition optical imaging lens further comprises an infrared filter E7, wherein the infrared filter E7 is arranged between the third lens E3 and the imaging surface S13, and infrared band light entering the lens is filtered through the infrared filter E7, so that noise generated when infrared light irradiates the photosensitive chip is avoided. Specifically, the infrared filter E7 may be made of glass.
Please refer to the following tables 4-1, 4-2 and 4-3.
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Example five
Referring to fig. 13 to 15, fig. 13 is a schematic diagram of a high-definition optical imaging lens according to a fifth embodiment of the present invention, fig. 14 is an astigmatism and distortion graph of the high-definition optical imaging lens according to the fifth embodiment of the present invention, and fig. 15 is a spherical aberration graph of the high-definition optical imaging lens according to the fifth embodiment of the present invention.
Based on the foregoing embodiments, the high-definition optical imaging lens provided in this embodiment includes the stop STO, the first lens E1, the second lens E2, the third lens E3, the fourth lens E4, the fifth lens E5 and the sixth lens E6 sequentially disposed along the direction from the object side to the image side, and each of the object side surface of the first lens E1 to the image side surface of the sixth lens E6 is an aspheric surface.
Specifically, the bending force of each surface type and the surface type are matched as follows:
the first lens element E1 with positive refractive power has a convex object-side surface S1 at a paraxial region and a concave image-side surface S2 at a paraxial region;
the second lens element E2 with negative refractive power has a convex object-side surface S3 at a paraxial region and a concave image-side surface S4 at a paraxial region;
the third lens element E3 with positive refractive power has a convex object-side surface S5 at a paraxial region and a convex image-side surface S6 at a paraxial region;
the fourth lens element E4 with negative refractive power has a convex object-side surface S7 at a paraxial region and a concave image-side surface S8 at a paraxial region;
the fifth lens element E5 with positive refractive power has a concave object-side surface S9 at a paraxial region and a convex image-side surface S10 at a paraxial region;
the sixth lens element E6 with negative refractive power has a concave object-side surface S11 at a paraxial region and a concave image-side surface S12 at a paraxial region.
In addition, the high-definition optical imaging lens further comprises an infrared filter E7, wherein the infrared filter E7 is arranged between the third lens E3 and the imaging surface S13, and infrared band light entering the lens is filtered through the infrared filter E7, so that noise generated when infrared light irradiates the photosensitive chip is avoided. Specifically, the infrared filter E7 may be made of glass.
Please refer to the following tables 5-1, 5-2 and 5-3.
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Example six
The embodiment provides an electronic device, which includes the high-definition optical imaging lens in any one of the embodiments.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. The high-definition optical image capturing lens is characterized by comprising a diaphragm, a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens which are sequentially arranged along the direction from an object side to an image side, wherein each of the surfaces from the object side of the first lens to the image side of the sixth lens is an aspheric surface;
the first lens element with positive refractive power has a convex object-side surface at a paraxial region and a concave image-side surface at a paraxial region;
the second lens element with negative refractive power has a convex object-side surface at a paraxial region and a concave image-side surface at a paraxial region;
the third lens element with positive refractive power;
the fourth lens element with negative refractive power has a convex object-side surface at a paraxial region and a concave image-side surface at a paraxial region;
the fifth lens element with positive refractive power has a concave object-side surface at a paraxial region and a convex image-side surface at a paraxial region;
the sixth lens element with negative refractive power has a concave object-side surface at a paraxial region and a concave image-side surface at a paraxial region;
the high-definition optical imaging lens meets the following relation:
7.2＜f×(TTL/ImgH)＜8.0；
wherein f is the focal length of the high-definition optical imaging lens, TTL is the total optical length of the high-definition optical imaging lens, and ImgH is half of the diagonal length of the effective pixel area on the imaging surface of the high-definition optical imaging lens;
the high-definition optical imaging lens also satisfies the following relation:
13.9＜f4/f6＜15.1；
wherein f4 is the focal length of the fourth lens, and f6 is the focal length of the sixth lens.
2. The high definition optical imaging lens of claim 1, wherein the high definition optical imaging lens further satisfies the following relationship:
2.1＜f/f1+f/f5＜2.7；
wherein f1 is the focal length of the first lens, and f5 is the focal length of the fifth lens.
3. The high definition optical imaging lens of claim 1, wherein the high definition optical imaging lens further satisfies the following relationship:
4.0＜f3/f1-f4/f2＜7.6；
wherein f1 is the focal length of the first lens, f2 is the focal length of the second lens, f3 is the focal length of the third lens, and f4 is the focal length of the fourth lens.
4. The high definition optical imaging lens of claim 1, wherein the high definition optical imaging lens further satisfies the following relationship:
2.0＜f1/R11＜2.5；
wherein f1 is a focal length of the first lens, and R11 is a radius of curvature of an object-side surface of the first lens.
5. The high definition optical imaging lens of claim 1, wherein the high definition optical imaging lens further satisfies the following relationship:
0.7＜f/R62＜1.7；
wherein R62 is the radius of curvature of the sixth lens image side surface.
6. The high definition optical imaging lens of claim 1, wherein the high definition optical imaging lens further satisfies the following relationship:
1.5＜R41/R42＜3.5；
wherein R41 is the radius of curvature of the object-side surface of the fourth lens, and R42 is the radius of curvature of the image-side surface of the fourth lens.
7. The high definition optical imaging lens of claim 1, wherein the high definition optical imaging lens further satisfies the following relationship:
2.7＜ImgH/Fno；
wherein ImgH is half of the diagonal length of the effective pixel region on the imaging surface of the high-definition optical imaging lens, and Fno is the aperture value of the high-definition optical imaging lens.
8. The high definition optical imaging lens of claim 1, wherein the high definition optical imaging lens further satisfies the following relationship:
5.0＜f×tan(HFOV)＜5.7；
the HFOV is the half field angle of the high definition optical imaging lens.
9. An electronic device comprising a high definition optical imaging lens as claimed in any one of claims 1 to 8.
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| CN109270666A (en) * | 2018-12-04 | 2019-01-25 | 广东旭业光电科技股份有限公司 | A kind of optical imaging lens and electronic equipment |
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| CN109270666A (en) * | 2018-12-04 | 2019-01-25 | 广东旭业光电科技股份有限公司 | A kind of optical imaging lens and electronic equipment |
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