CN108318998B - Image pickup optical lens - Google Patents
Image pickup optical lens Download PDFInfo
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- CN108318998B CN108318998B CN201810203790.1A CN201810203790A CN108318998B CN 108318998 B CN108318998 B CN 108318998B CN 201810203790 A CN201810203790 A CN 201810203790A CN 108318998 B CN108318998 B CN 108318998B
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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
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/041—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
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
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Abstract
The invention relates to the field of optical lenses, and discloses an image pickup optical lens, which sequentially comprises from an object side to an image side: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens; the first lens is made of glass, the second lens is made of plastic, the third lens is made of plastic, the fourth lens is made of plastic, the fifth lens is made of plastic, the sixth lens is made of glass, and the seventh lens is made of plastic; and satisfies the following relationships: f1/f is more than or equal to 1.5, n1 is more than or equal to 1.7 and less than or equal to 2.2, n6 is more than or equal to 1.7 and less than or equal to 2.2, f3/f4 is more than or equal to 2, and (R13+ R14)/(R13-R14) is more than or equal to 10. The imaging optical lens can obtain high imaging performance and low TTL.
Description
Technical Field
The present invention relates to the field of optical lenses, and more particularly, to an imaging optical lens suitable for portable terminal devices such as smart phones and digital cameras, and imaging apparatuses such as monitors and PC lenses.
Background
In recent years, with the rise of smart phones, the demand of miniaturized camera lenses is increasing, and the photosensitive devices of general camera lenses are not limited to two types, namely, a Charge Coupled Device (CCD) or a Complementary Metal-oxide semiconductor (CMOS) Sensor, and due to the advanced semiconductor manufacturing process technology, the pixel size of the photosensitive devices is reduced, and in addition, the current electronic products are developed with a good function, a light weight, a small size and a light weight, so that the miniaturized camera lenses with good imaging quality are the mainstream in the current market. In order to obtain better imaging quality, the lens mounted on the mobile phone camera conventionally adopts a three-piece or four-piece lens structure. Moreover, with the development of technology and the increase of diversified demands of users, under the condition that the pixel area of the photosensitive device is continuously reduced and the requirement of the system on the imaging quality is continuously improved, five-piece, six-piece and seven-piece lens structures gradually appear in the design of the lens. A wide-angle imaging lens having excellent optical characteristics, being ultra-thin and having sufficient chromatic aberration correction is in demand.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide an imaging optical lens that can satisfy the requirements of ultra-thinning and wide angle while achieving high imaging performance.
To solve the above-mentioned problems, an embodiment of the present invention provides an imaging optical lens, in order from an object side to an image side, comprising: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens;
the first lens is made of glass, the second lens is made of plastic, the third lens is made of plastic, the fourth lens is made of plastic, the fifth lens is made of plastic, the sixth lens is made of glass, and the seventh lens is made of plastic;
the focal length of the imaging optical lens is f, the focal length of the first lens is f1, the refractive index of the first lens is n1, the refractive index of the sixth lens is n6, the focal length of the third lens is f3, the focal length of the fourth lens is f4, the radius of curvature of the object-side surface of the seventh lens is R13, the radius of curvature of the image-side surface of the seventh lens is R14, and the following relational expressions are satisfied:
1≤f1/f≤1.5；
1.7≤n1≤2.2；
1.7≤n6≤2.2；
-2≤f3/f4≤2；
-10≤(R13+R14)/(R13-R14)≤10。
compared with the prior art, the embodiment of the invention utilizes the arrangement mode of the lenses and utilizes the common cooperation of the lenses with specific relation on data of focal length, refractive index, total optical length, axial thickness and curvature radius of the shooting optical lens, so that the shooting optical lens can meet the requirements of ultra-thinning and wide angle while obtaining high imaging performance.
Preferably, the first lens element with positive refractive power has a convex object-side surface at paraxial region; the radius of curvature of the object-side surface of the first lens is R1, the radius of curvature of the image-side surface of the first lens is R2, the on-axis thickness of the first lens is d1, and the following relation is satisfied: -5.96 ≤ (R1+ R2)/(R1-R2) ≤ 0.09; d1 is more than or equal to 0.12 and less than or equal to 0.70.
Preferably, the imaging optical lens satisfies the following relational expression: -3.73 ≤ (R1+ R2)/(R1-R2) ≤ 0.12; d1 is more than or equal to 0.20 and less than or equal to 0.56.
Preferably, the focal length of the imaging optical lens is f, the focal length of the second lens is f2, the radius of curvature of the object-side surface of the second lens is R3, the radius of curvature of the image-side surface of the second lens is R4, the on-axis thickness of the second lens is d3, and the following relationships are satisfied: -53.24. ltoreq. f 2/f. ltoreq.4.45; not less than 0.60 (R3+ R4)/(R3-R4) not more than 36.42; d3 is more than or equal to 0.11 and less than or equal to 0.88.
Preferably, the imaging optical lens satisfies the following relational expression: 33.27 ≤ f2/f ≤ 3.56; 0.95-29.14 of (R3+ R4)/(R3-R4); d3 is more than or equal to 0.18 and less than or equal to 0.70.
Preferably, the object-side surface of the third lens is concave at the paraxial region; the focal length of the image pickup optical lens is f, the focal length of the third lens is f3, the curvature radius of the object side surface of the third lens is R5, the curvature radius of the image side surface of the third lens is R6, the on-axis thickness of the third lens is d5, and the following relations are satisfied: -2.85. ltoreq. f 3/f. ltoreq.23.36; (R5+ R6)/(R5-R6) is not more than 0.32 and not more than 17.73; d5 is more than or equal to 0.09 and less than or equal to 0.38.
Preferably, the imaging optical lens satisfies the following relational expression: -1.78. ltoreq. f 3/f. ltoreq.18.68; not less than 0.51 (R5+ R6)/(R5-R6) not more than 14.18; d5 is more than or equal to 0.15 and less than or equal to 0.31.
Preferably, the imaging optical lens has a focal length f, the fourth lens has a focal length f4, the fourth lens has a radius of curvature of the object-side surface R7, the fourth lens has a radius of curvature of the image-side surface R8, and the fourth lens has an on-axis thickness d7, and satisfies the following relationships: 34.75 ≦ f4/f ≦ 159.01; the ratio of (R7+ R8)/(R7-R8) is less than or equal to 9 and is less than or equal to 859.54; d7 is more than or equal to 0.20 and less than or equal to 1.63.
Preferably, the imaging optical lens satisfies the following relational expression: 21.72 ≦ f4/f ≦ 127.21; the ratio of (R7+ R8)/(R7-R8) is not more than 537.21 and not more than 7.2; d7 is more than or equal to 0.32 and less than or equal to 1.30.
Preferably, the image side surface of the fifth lens is concave at the paraxial region; the focal length of the image pickup optical lens is f, the focal length of the fifth lens is f5, the curvature radius of the object side surface of the fifth lens is R9, the curvature radius of the image side surface of the fifth lens is R10, the on-axis thickness of the fifth lens is d9, and the following relations are satisfied: 15.41-f 5/f-3.45; 4.07 is less than or equal to (R9+ R10)/(R9-R10) is less than or equal to 4.83; d9 is more than or equal to 0.12 and less than or equal to 0.77.
Preferably, the imaging optical lens satisfies the following relational expression: -9.63. ltoreq. f 5/f. ltoreq.2.76; -2.54 ≤ (R9+ R10)/(R9-R10) 3.87; d9 is more than or equal to 0.19 and less than or equal to 0.62.
Preferably, the sixth lens element with positive refractive power has a convex object-side surface along a paraxial region; the focal length of the imaging optical lens is f, the focal length of the sixth lens is f6, the curvature radius of the object side surface of the sixth lens is R11, the curvature radius of the image side surface of the sixth lens is R12, the on-axis thickness of the sixth lens is d11, and the following relations are satisfied: f6/f is more than or equal to 0.28 and less than or equal to 7.56; -30.09 (R11+ R12)/(R11-R12) is less than or equal to-0.07; d11 is more than or equal to 0.14 and less than or equal to 1.10.
Preferably, the imaging optical lens satisfies the following relational expression: f6/f is more than or equal to 0.45 and less than or equal to 6.04; more than or equal to 18.81 (R11+ R12)/(R11-R12) more than or equal to-0.09; d11 is more than or equal to 0.22 and less than or equal to 0.88.
Preferably, the seventh lens element has negative refractive power; the focal length of the imaging optical lens is f, the focal length of the seventh lens is f7, the curvature radius of the object side surface of the seventh lens is R13, the curvature radius of the image side surface of the seventh lens is R14, the on-axis thickness of the seventh lens is d13, and the following relations are satisfied: f7/f is more than or equal to-8.42 and less than or equal to-0.51; d13 is more than or equal to 0.06 and less than or equal to 0.58.
Preferably, the imaging optical lens satisfies the following relational expression: f7/f is more than or equal to-5.26 and less than or equal to-0.63; d13 is more than or equal to 0.10 and less than or equal to 0.46.
Preferably, the total optical length TTL of the image pickup optical lens is less than or equal to 5.56 millimeters.
Preferably, the total optical length TTL of the image pickup optical lens is less than or equal to 5.31 mm.
Preferably, the F-number of the imaging optical lens is less than or equal to 1.96.
Preferably, the F-number of the diaphragm of the imaging optical lens is less than or equal to 1.92
The invention has the advantages that the optical camera lens has excellent optical characteristics, is ultrathin, has wide angle and can fully correct chromatic aberration, and is particularly suitable for mobile phone camera lens components and WEB camera lenses which are composed of high-pixel CCD, CMOS and other camera elements.
Drawings
Fig. 1 is a schematic configuration diagram of an imaging optical lens according to a first embodiment of the present invention;
FIG. 2 is a schematic axial aberration diagram of the imaging optical lens of FIG. 1;
fig. 3 is a schematic diagram of chromatic aberration of magnification of the imaging optical lens shown in fig. 1;
FIG. 4 is a schematic view of curvature of field and distortion of the imaging optical lens of FIG. 1;
fig. 5 is a schematic configuration diagram of an imaging optical lens according to a second embodiment of the present invention;
FIG. 6 is a schematic axial aberration diagram of the imaging optical lens of FIG. 5;
fig. 7 is a schematic diagram of chromatic aberration of magnification of the imaging optical lens shown in fig. 5;
FIG. 8 is a schematic view of curvature of field and distortion of the imaging optical lens of FIG. 5;
fig. 9 is a schematic configuration diagram of an imaging optical lens according to a third embodiment of the present invention;
fig. 10 is a schematic view of axial aberrations of the image pickup optical lens shown in fig. 9;
fig. 11 is a schematic diagram of chromatic aberration of magnification of the imaging optical lens shown in fig. 9;
fig. 12 is a schematic view of curvature of field and distortion of the imaging optical lens shown in fig. 9.
Fig. 13 is a schematic configuration diagram of an imaging optical lens according to a fourth embodiment of the present invention;
fig. 14 is a schematic view of axial aberrations of the image pickup optical lens shown in fig. 13;
fig. 15 is a schematic diagram of chromatic aberration of magnification of the imaging optical lens shown in fig. 13;
fig. 16 is a schematic view of curvature of field and distortion of the imaging optical lens shown in fig. 13.
Fig. 17 is a schematic configuration diagram of an imaging optical lens according to a fifth embodiment of the present invention;
fig. 18 is a schematic view of axial aberrations of the image pickup optical lens shown in fig. 17;
fig. 19 is a schematic diagram of chromatic aberration of magnification of the imaging optical lens shown in fig. 17;
fig. 20 is a schematic view of curvature of field and distortion of the imaging optical lens shown in fig. 17.
Fig. 21 is a schematic configuration diagram of an imaging optical lens according to a sixth embodiment of the present invention;
fig. 22 is a schematic view of axial aberrations of the image pickup optical lens shown in fig. 21;
fig. 23 is a schematic diagram of chromatic aberration of magnification of the imaging optical lens shown in fig. 21;
fig. 24 is a schematic view of curvature of field and distortion of the imaging optical lens shown in fig. 21.
Fig. 25 is a schematic configuration diagram of an imaging optical lens according to a seventh embodiment of the present invention;
fig. 26 is a schematic view of axial aberrations of the image pickup optical lens shown in fig. 25;
fig. 27 is a schematic diagram of chromatic aberration of magnification of the imaging optical lens shown in fig. 25;
fig. 28 is a schematic view of curvature of field and distortion of the imaging optical lens shown in fig. 25.
Fig. 29 is a schematic configuration diagram of an imaging optical lens according to an eighth embodiment of the present invention;
fig. 30 is a schematic view of axial aberrations of the image pickup optical lens shown in fig. 29;
fig. 31 is a schematic diagram of chromatic aberration of magnification of the imaging optical lens shown in fig. 29;
fig. 32 is a schematic view of curvature of field and distortion of the imaging optical lens shown in fig. 29.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present invention in its various embodiments. However, the technical solution claimed in the present invention can be implemented without these technical details and various changes and modifications based on the following embodiments.
(first embodiment)
Referring to the drawings, the present invention provides an image pickup optical lens 10. Fig. 1 shows an image pickup optical lens 10 according to a first embodiment of the present invention, and the image pickup optical lens 10 includes seven lenses. Specifically, the imaging optical lens 10, in order from an object side to an image side, includes: a diaphragm S1, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, and a seventh lens L7. An optical element such as an optical filter (filter) GF may be disposed between the seventh lens L7 and the image plane Si.
The first lens L1 is made of glass, the second lens L2 is made of plastic, the third lens L3 is made of plastic, the fourth lens L4 is made of plastic, the fifth lens L5 is made of plastic, the sixth lens L6 is made of glass, and the seventh lens L7 is made of plastic.
The focal length of the entire image pickup optical lens 10 is defined as f, the focal length of the first lens element is defined as f1, and f1/f is greater than or equal to 1.5, which defines the positive refractive power of the first lens element L1. When the value exceeds the lower limit, the lens is advantageous for the ultra-thin lens, but the positive refractive power of the first lens element L1 is too strong to correct the aberration, and the lens is not advantageous for the wide angle. On the other hand, if the refractive power exceeds the upper limit predetermined value, the positive refractive power of the first lens element is too weak, and the lens barrel is difficult to be made thinner.
The refractive index of the first lens is defined as n1, n1 is greater than or equal to 1.7 and less than or equal to 2.2, and the refractive index of the first lens L1 is defined, so that the ultra-thin lens is more favorable for development and correction of aberration in the range.
The refractive index of the sixth lens is defined as n6, n6 is greater than or equal to 1.7 and less than or equal to 2.2, and the refractive index of the sixth lens L6 is defined, so that the ultra-thin lens is more favorable for development and correction of aberration in the range.
The focal length of the third lens is defined as f3, the focal length of the fourth lens is defined as f4, -2 is not less than f3/f4 is not less than 2, and the ratio of the focal length f3 of the third lens L3 to the focal length f4 of the fourth lens L4 is regulated, so that the sensitivity of the optical lens group for shooting can be effectively reduced, and the imaging quality is further improved.
The curvature radius of the object side surface of the seventh lens is defined as R13, the curvature radius of the image side surface of the seventh lens is defined as R14, -10 ≦ (R13+ R14)/(R13-R14) ≦ 10, and the shape of the seventh lens L7 is defined, so that when the curvature radius is out of range, it becomes difficult to correct off-axis aberration of the angle of view as the angle of view is increased to a very thin and wide angle.
When the focal length of the image pickup optical lens 10, the focal lengths of the respective lenses, the refractive indices of the respective lenses, the optical total length of the image pickup optical lens, the on-axis thickness, and the curvature radius satisfy the above-described relational expressions, the image pickup optical lens 10 can have high performance and meet the design requirement of low TTL.
In this embodiment, the object-side surface of the first lens element L1 is convex at the paraxial region and has positive refractive power.
The curvature radius of the object side surface of the first lens L1 is R1, the curvature radius of the image side surface of the first lens L1 is R2, and the following relations are satisfied: -5.96 ≦ (R1+ R2)/(R1-R2) ≦ -0.09, and defines the shape of the first lens L1, and when out of range, it becomes difficult to correct the problem of chromatic aberration on the axis as the lens advances toward ultra-thin wide angles. Preferably, -3.73 ≦ (R1+ R2)/(R1-R2) ≦ -0.12.
The first lens L1 has an on-axis thickness d1, and satisfies the following relationship: d1 is more than or equal to 0.12 and less than or equal to 0.70, which is beneficial to realizing ultra-thinning. Preferably, 0.20. ltoreq. d 1. ltoreq.0.56.
In the present embodiment, the focal length of the entire imaging optical lens 10 is f, and the focal length of the second lens L2 is f2, and the following relational expression is satisfied: 53.24 ≦ f2/f ≦ 4.45, by controlling the negative power of the second lens L2 within a reasonable range, the spherical aberration produced by the first lens L1 having positive power and the amount of curvature of field of the system are balanced reasonably and effectively. Preferably-33.27. ltoreq. f 2/f. ltoreq.3.56.
The curvature radius of the object side surface of the second lens L2 is R3, the curvature radius of the image side surface of the second lens L2 is R4, and the following relations are satisfied: the second lens L2 is defined to have a shape of 0.60 ≦ (R3+ R4)/(R3-R4) ≦ 36.42, and when the second lens L2 is out of range, it becomes difficult to correct the problem of chromatic aberration on the axis as the lens is made to have a very thin and wide angle. Preferably, 0.95 ≦ (R3+ R4)/(R3-R4). ltoreq.29.14.
The on-axis thickness of the second lens L2 is d3, and satisfies the following relation: d3 is more than or equal to 0.11 and less than or equal to 0.88, which is beneficial to realizing ultra-thinning. Preferably, 0.18. ltoreq. d 3. ltoreq.0.70.
In the present embodiment, the object-side surface of the third lens element L3 is concave at the paraxial region.
The focal length of the entire image pickup optical lens 10 is f, and the focal length of the third lens L3 is f3, and the following relationships are satisfied: 2.85 ≦ f3/f ≦ 23.36, which is beneficial to the system to obtain good ability to balance curvature of field, so as to effectively improve image quality. Preferably, -1.78. ltoreq. f 3/f. ltoreq.18.68.
The curvature radius of the object side surface of the third lens L3 is R5, the curvature radius of the image side surface of the third lens L3 is R6, and the following relations are satisfied: the ratio of (R5+ R6)/(R5-R6) is not less than 0.32 and not more than 17.73, the shape of the third lens L3 can be effectively controlled, the molding of the third lens L3 is facilitated, and the poor molding and stress generation caused by the overlarge surface curvature of the third lens L3 are avoided. Preferably, 0.51 ≦ (R5+ R6)/(R5-R6). ltoreq.14.18.
The on-axis thickness of the third lens L3 is d5, and satisfies the following relation: d5 is more than or equal to 0.09 and less than or equal to 0.38, which is beneficial to realizing ultra-thinning. Preferably, 0.15. ltoreq. d 5. ltoreq.0.31.
In the present embodiment, the focal length of the entire imaging optical lens 10 is f, and the focal length of the fourth lens L4 is f4, and the following relational expression is satisfied: 34.75 ≦ f4/f ≦ 159.01, which allows better imaging quality and lower sensitivity of the system through reasonable distribution of the optical power. Preferably, -21.72. ltoreq. f 4/f. ltoreq. 127.21.
The curvature radius of the object side surface of the fourth lens L4 is R7, the curvature radius of the image side surface of the fourth lens L4 is R8, and the following relations are satisfied: -859.54 ≦ (R7+ R8)/(R7-R8) ≦ 9, and the shape of the fourth lens L4 is specified, and when out of range, it is difficult to correct the aberration of the off-axis angle of view and the like with the development of ultra-thin wide angle of view. Preferably, -537.21 ≦ (R7+ R8)/(R7-R8). ltoreq.7.2.
The on-axis thickness of the fourth lens L4 is d7, and satisfies the following relation: d7 is more than or equal to 0.20 and less than or equal to 1.63, which is beneficial to realizing ultra-thinning. Preferably, 0.32. ltoreq. d 7. ltoreq.1.30.
In the present embodiment, the image-side surface of the fifth lens L5 is concave in the paraxial region.
The focal length of the entire image pickup optical lens 10 is f, and the focal length of the fifth lens L5 is f5, and the following relationships are satisfied: 15.41 ≦ f5/f ≦ 3.45, and the definition of the fifth lens L5 can effectively make the light angle of the camera lens gentle and reduce the tolerance sensitivity. Preferably, -9.63. ltoreq. f 5/f. ltoreq.2.76.
The curvature radius of the object side surface of the fifth lens L5 is R9, the curvature radius of the image side surface of the fifth lens L5 is R10, and the following relations are satisfied: 4.07 ≦ (R9+ R10)/(R9-R10) ≦ 4.83, and the shape of the fifth lens L5 is specified, and when the condition is out of the range, it becomes difficult to correct the off-axis aberration and the like as the ultra-thin wide angle is developed. Preferably, -2.54 ≦ (R9+ R10)/(R9-R10). ltoreq.3.87.
The fifth lens L5 has an on-axis thickness d9, and satisfies the following relationship: d9 is more than or equal to 0.12 and less than or equal to 0.77, which is beneficial to realizing ultra-thinning. Preferably, 0.19. ltoreq. d 9. ltoreq.0.62.
In this embodiment, the object-side surface of the sixth lens element L6 is convex at the paraxial region and has positive refractive power.
The focal length of the entire image pickup optical lens 10 is f, and the focal length of the sixth lens L6 is f6, and the following relationships are satisfied: f6/f is more than or equal to 0.28 and less than or equal to 7.56, and the system has better imaging quality and lower sensitivity through reasonable distribution of the focal power. Preferably, 0.45. ltoreq. f 6/f. ltoreq.6.04.
The curvature radius of the object-side surface of the sixth lens L6 is R11, and the curvature radius of the image-side surface of the sixth lens L6 is R12, which satisfy the following relations: -30.09 ≦ (R11+ R12)/(R11-R12) ≦ -0.07, and the shape of the sixth lens L6 is specified, and when the condition is out of the range, it is difficult to correct the off-axis aberration of the angle of view and the like as the ultra-thin wide angle is developed. Preferably, the ratio of-18.81 ≦ (R11+ R12)/(R11-R12) ≦ -0.09.
The on-axis thickness of the sixth lens L6 is d11, and satisfies the following relation: d11 is more than or equal to 0.14 and less than or equal to 1.10, which is beneficial to realizing ultra-thinning. Preferably, 0.22. ltoreq. d 11. ltoreq.0.88.
In this embodiment, the seventh lens element L7 has negative refractive power.
The focal length of the entire image-pickup optical lens 10 is f, the focal length of the seventh lens L7 is f7, and the following relationship is satisfied: 8.42 ≦ f7/f ≦ -0.51, allowing better imaging quality and lower sensitivity of the system through a reasonable distribution of optical power; preferably-5.26. ltoreq. f 7/f. ltoreq-0.63.
The seventh lens L7 has an on-axis thickness d13, and satisfies the following relationship: d13 is more than or equal to 0.06 and less than or equal to 0.58, which is beneficial to realizing ultra-thinning. Preferably, 0.10. ltoreq. d 13. ltoreq.0.46.
In this embodiment, the total optical length TTL of the image pickup optical lens 10 is less than or equal to 5.56 mm, which is beneficial to achieving ultra-thinning. Preferably, the total optical length TTL of the image pickup optical lens 10 is less than or equal to 5.31 mm.
In the present embodiment, the number of apertures F of the imaging optical lens 10 is 1.96 or less. The large aperture is large, and the imaging performance is good. Preferably, the F-number of the imaging optical lens 10 is 1.92 or less.
With such a design, the total optical length TTL of the entire imaging optical lens 10 can be made as short as possible, and the characteristic of miniaturization can be maintained.
The image pickup optical lens 10 of the present invention will be explained below by way of example. The symbols described in the respective examples are as follows. Distance, radius and center thickness are in mm.
TTL optical length (on-axis distance from the object-side surface of the 1 st lens L1 to the image plane);
preferably, the object side surface and/or the image side surface of the lens may be further provided with an inflection point and/or a stagnation point to meet the requirement of high-quality imaging.
The following shows design data of the image pickup optical lens 10 according to the first embodiment of the present invention, the units of focal length, distance, radius, and center thickness being mm.
Tables 1 and 2 show design data of the imaging optical lens 10 according to the first embodiment of the present invention.
[ TABLE 1 ]
Wherein each symbol has the following meaning.
S1, diaphragm;
r is the curvature radius of the optical surface and the central curvature radius when the lens is used;
r1 radius of curvature of object-side surface of first lens L1;
r2 radius of curvature of image side surface of first lens L1;
r3 radius of curvature of object-side surface of second lens L2;
r4 radius of curvature of the image-side surface of the second lens L2;
r5 radius of curvature of object-side surface of third lens L3;
r6 radius of curvature of the image-side surface of the third lens L3;
r7 radius of curvature of object-side surface of fourth lens L4;
r8 radius of curvature of image side surface of the fourth lens L4;
r9 radius of curvature of object-side surface of fifth lens L5;
r10 radius of curvature of the image-side surface of the fifth lens L5;
r11 radius of curvature of object-side surface of sixth lens L6;
r12 radius of curvature of the image-side surface of the sixth lens L6;
r13 radius of curvature of object-side surface of seventh lens L7;
r14 radius of curvature of the image-side surface of the seventh lens L7;
r15 radius of curvature of the object side of the optical filter GF;
r16 radius of curvature of image side of optical filter GF;
d is the on-axis thickness of the lenses and the on-axis distance between the lenses;
d 0: the on-axis distance of the stop S1 to the object-side surface of the first lens L1;
d1: the on-axis thickness of the first lens L1;
d2: the on-axis distance from the image-side surface of the first lens L1 to the object-side surface of the second lens L2;
d3: the on-axis thickness of the second lens L2;
d4: the on-axis distance from the image-side surface of the second lens L2 to the object-side surface of the third lens L3;
d5: the on-axis thickness of the third lens L3;
d 6: the on-axis distance from the image-side surface of the third lens L3 to the object-side surface of the fourth lens L4;
d 7: the on-axis thickness of the fourth lens L4;
d 8: an on-axis distance from an image-side surface of the fourth lens L4 to an object-side surface of the fifth lens L5;
d 9: the on-axis thickness of the fifth lens L5;
d 10: an on-axis distance from an image-side surface of the fifth lens L5 to an object-side surface of the sixth lens L6;
d 11: the on-axis thickness of the sixth lens L6;
d 12: an on-axis distance from the image-side surface of the sixth lens L6 to the object-side surface of the seventh lens L7;
d 13: the on-axis thickness of the seventh lens L7;
d 14: the on-axis distance from the image-side surface of the seventh lens L7 to the object-side surface of the optical filter GF;
d 15: on-axis thickness of the optical filter GF;
d 16: the on-axis distance from the image side surface of the optical filter GF to the image surface;
nd is the refractive index of the d line;
nd1 refractive index of d-line of the first lens L1;
nd2 refractive index of d-line of the second lens L2;
nd3 refractive index of d-line of the third lens L3;
nd4 refractive index of d-line of the fourth lens L4;
nd5 refractive index of d-line of the fifth lens L5;
nd 6: the refractive index of the d-line of the sixth lens L6;
nd 7: the refractive index of the d-line of the seventh lens L7;
ndg, refractive index of d-line of optical filter GF;
vd is Abbe number;
v 1: abbe number of the first lens L1;
v 2: abbe number of the second lens L2;
v 3: abbe number of the third lens L3;
v 4: abbe number of the fourth lens L4;
v 5: abbe number of the fifth lens L5;
v 6: abbe number of the sixth lens L6;
v 7: abbe number of the seventh lens L7;
vg: abbe number of the optical filter GF.
Table 2 shows aspherical surface data of each lens in the imaging optical lens 10 according to the first embodiment of the present invention.
[ TABLE 2 ]
Wherein k is a conic coefficient, and A4, A6, A8, A10, A12, A14 and A16 are aspheric coefficients.
IH image height
y＝(x2/R)/[1+{1-(k+1)(x2/R2)}1/2]+A4x4+A6x6+A8x8+A10x10+A12x12+A14x14+A16x16(1)
For convenience, the aspherical surface of each lens surface uses the aspherical surface shown in the above formula (1). However, the present invention is not limited to the aspherical polynomial form expressed by this formula (1).
Tables 3 and 4 show the inflection point and stagnation point design data of each lens in the imaging optical lens 10 according to the first embodiment of the present invention. Wherein, R1 and R2 represent the object-side surface and the image-side surface of the first lens L1, R3 and R4 represent the object-side surface and the image-side surface of the second lens L2, R5 and R6 represent the object-side surface and the image-side surface of the third lens L3, R7 and R8 represent the object-side surface and the image-side surface of the fourth lens L4, R9 and R10 represent the object-side surface and the image-side surface of the fifth lens L5, R11 and R12 represent the object-side surface and the image-side surface of the sixth lens L6, and R13 and R14 represent the object-side surface and the image-side surface of the seventh lens L7, respectively. The "inflection point position" field correspondence data is a vertical distance from an inflection point set on each lens surface to the optical axis of the image pickup optical lens 10. The "stagnation point position" field corresponding data is the vertical distance from the stagnation point set on each lens surface to the optical axis of the imaging optical lens 10.
[ TABLE 3 ]
[ TABLE 4 ]
| Number of stagnation points | Location of stagnation 1 | Location of |
|
| |
0 | ||
| |
0 | ||
| R3 | 1 | 1.025 | |
| |
0 | ||
| R5 | 1 | 1.055 | |
| R6 | 1 | 1.095 | |
| R7 | 1 | 1.175 | |
| |
0 | ||
| R9 | 1 | 0.335 | |
| |
2 | 0.605 | 1.555 |
| |
2 | 1.155 | 1.705 |
| |
0 | ||
| R13 | 0 | ||
| R14 | 1 | 1.095 |
Fig. 2 and 3 are schematic diagrams showing axial aberrations and chromatic aberration of magnification of light having wavelengths of 470nm, 510nm, 555nm, 610nm, and 650nm, respectively, after passing through the imaging optical lens 10 according to the first embodiment. Fig. 4 is a schematic view showing curvature of field and distortion of light having a wavelength of 555nm after passing through the imaging optical lens 10 according to the first embodiment, where S is curvature of field in the sagittal direction and T is curvature of field in the tangential direction in fig. 4.
The following table 33 shows values corresponding to the parameters specified in the conditional expressions for the respective numerical values in examples 1, 2, 3, 4, 5, 6, 7, and 8.
As shown in table 33, the first embodiment satisfies each conditional expression.
In the present embodiment, the imaging optical lens has an entrance pupil diameter of 1.93657mm, a full field height of 2.934mm, a diagonal field angle of 76.02 °, a wide angle, and a high profile, and has excellent optical characteristics with on-axis and off-axis chromatic aberration sufficiently corrected.
(second embodiment)
The second embodiment is basically the same as the first embodiment, the same reference numerals as in the first embodiment, and only different points will be described below.
Tables 5 and 6 show design data of the imaging optical lens 20 according to the second embodiment of the present invention.
[ TABLE 5 ]
Table 6 shows aspherical surface data of each lens in the imaging optical lens 20 according to the second embodiment of the present invention.
[ TABLE 6 ]
Tables 7 and 8 show the inflection point and stagnation point design data of each lens in the imaging optical lens 20 according to the second embodiment of the present invention.
[ TABLE 7 ]
| Number of points of inflection | Position of reverse curvature 1 | Position of |
Position of reverse curvature 3 | |
| |
0 | |||
| |
2 | 0.335 | 0.385 | |
| R3 | 1 | 0.955 | ||
| |
2 | 0.705 | 0.995 | |
| R5 | 1 | 0.955 | ||
| R6 | 1 | 0.915 | ||
| R7 | 4 | 0.175 | 0.425 | 0.995 |
| R8 | 1 | 1.365 | ||
| R9 | 3 | 0.105 | 1.175 | 1.305 |
| |
2 | 0.285 | 1.005 | |
| |
2 | 0.695 | 1.605 | |
| R12 | 3 | 0.565 | 0.875 | 1.935 |
| |
2 | 1.355 | 1.835 | |
| R14 | 1 | 0.495 |
[ TABLE 8 ]
Fig. 6 and 7 are schematic diagrams showing axial aberrations and chromatic aberration of magnification of light having wavelengths of 470nm, 510nm, 555nm, 610nm, and 650nm, respectively, after passing through the imaging optical lens 20 according to the second embodiment. Fig. 8 is a schematic view showing curvature of field and distortion of light having a wavelength of 555nm after passing through the imaging optical lens 20 according to the second embodiment.
As shown in table 33, the second embodiment satisfies each conditional expression.
In the present embodiment, the imaging optical lens has an entrance pupil diameter of 1.896mm, a full field height of 2.934mm, a diagonal field angle of 77.13 °, a wide angle, and a high profile, and has excellent optical characteristics with on-axis and off-axis chromatic aberration sufficiently corrected.
(third embodiment)
The third embodiment is basically the same as the first embodiment, the same reference numerals as in the first embodiment, and only different points will be described below.
Tables 9 and 10 show design data of the imaging optical lens 30 according to the third embodiment of the present invention.
[ TABLE 9 ]
Table 10 shows aspherical surface data of each lens in the imaging optical lens 30 according to the third embodiment of the present invention.
[ TABLE 10 ]
Tables 11 and 12 show the inflection points and the stagnation point design data of each lens in the imaging optical lens 30 according to the third embodiment of the present invention.
[ TABLE 11 ]
[ TABLE 12 ]
| Number of stagnation points | Location of stagnation 1 | Location of |
|
| |
0 | ||
| |
0 | ||
| |
0 | ||
| |
0 | ||
| R5 | 1 | 1.055 | |
| R6 | 1 | 1.095 | |
| R7 | 1 | 1.175 | |
| |
0 | ||
| R9 | 1 | 0.245 | |
| |
2 | 0.555 | 1.565 |
| R11 | 1 | 1.145 | |
| |
0 | ||
| R13 | 0 | ||
| R14 | 1 | 1.095 |
Fig. 10 and 11 are schematic diagrams showing axial aberrations and chromatic aberration of magnification of light having wavelengths of 470nm, 510nm, 555nm, 610nm, and 650nm, respectively, after passing through the imaging optical lens 30 according to the third embodiment. Fig. 12 is a schematic view showing curvature of field and distortion of light having a wavelength of 555nm after passing through the imaging optical lens 30 according to the third embodiment.
As shown in table 33, the third embodiment satisfies each conditional expression.
In the present embodiment, the imaging optical lens has an entrance pupil diameter of 1.936mm, a full field image height of 2.934mm, a diagonal field angle of 76.07 °, a wide angle, and a high profile, and has excellent optical characteristics with on-axis and off-axis chromatic aberration sufficiently corrected.
(fourth embodiment)
The fourth embodiment is basically the same as the first embodiment, and the same reference numerals as in the first embodiment, and only different points will be described below.
Tables 13 and 14 show design data of the imaging optical lens 40 according to the fourth embodiment of the present invention.
[ TABLE 13 ]
Table 14 shows aspherical surface data of each lens in the imaging optical lens 40 according to the fourth embodiment of the present invention.
[ TABLE 14 ]
Tables 15 and 16 show the inflection points and the stagnation point design data of each lens in the imaging optical lens 40 according to the fourth embodiment of the present invention.
[ TABLE 15 ]
| Number of points of inflection | Position of reverse curvature 1 | Position of |
Position of reverse curvature 3 | Position of reverse curve 4 | |
| |
0 | ||||
| |
0 | ||||
| R3 | 1 | 0.645 | |||
| |
2 | 0.665 | 0.985 | ||
| R5 | 1 | 0.955 | |||
| R6 | 1 | 0.915 | |||
| R7 | 4 | 0.295 | 0.775 | 0.985 | 1.275 |
| |
0 | ||||
| |
2 | 1.145 | 1.305 | ||
| |
2 | 0.265 | 1.135 | ||
| |
2 | 0.665 | 1.585 | ||
| |
2 | 0.815 | 1.905 | ||
| R13 | 1 | 0.885 | |||
| |
2 | 0.695 | 1.315 |
[ TABLE 16 ]
Fig. 14 and 15 are schematic diagrams showing axial aberrations and chromatic aberration of magnification of light having wavelengths of 470nm, 510nm, 555nm, 610nm, and 650nm, respectively, after passing through the imaging optical lens 40 according to the fourth embodiment. Fig. 16 is a schematic view showing curvature of field and distortion of light having a wavelength of 555nm after passing through the imaging optical lens 40 according to the fourth embodiment.
As shown in table 33, the fourth embodiment satisfies each conditional expression.
In the present embodiment, the imaging optical lens has an entrance pupil diameter of 1.935mm, a full field height of 2.934mm, a diagonal field angle of 75.93 °, a wide angle, and a high profile, and has excellent optical characteristics with on-axis and off-axis chromatic aberration sufficiently corrected.
(fifth embodiment)
The fifth embodiment is basically the same as the first embodiment, the same reference numerals as in the first embodiment, and only different points will be described below.
Tables 17 and 18 show design data of the imaging optical lens 50 according to the fifth embodiment of the present invention.
[ TABLE 17 ]
Table 18 shows aspherical surface data of each lens in the imaging optical lens 50 according to the fifth embodiment of the present invention.
[ TABLE 18 ]
Tables 19 and 20 show the inflection points and the stagnation point design data of each lens in the imaging optical lens 50 according to the fifth embodiment of the present invention.
[ TABLE 19 ]
[ TABLE 20 ]
| Number of stagnation points | Location of stagnation 1 | Location of |
|
| |
0 | ||
| R2 | 1 | 0.495 | |
| R3 | 1 | 0.145 | |
| |
0 | ||
| |
0 | ||
| |
0 | ||
| |
0 | ||
| |
2 | 0.855 | 1.275 |
| |
2 | 1.215 | 1.315 |
| |
2 | 0.345 | 1.435 |
| R11 | 1 | 1.545 | |
| |
2 | 0.795 | 1.635 |
| R13 | 1 | 0.985 | |
| R14 | 1 | 1.595 |
Fig. 18 and 19 are schematic diagrams showing axial aberrations and chromatic aberration of magnification of light having wavelengths of 470nm, 510nm, 555nm, 610nm, and 650nm, respectively, after passing through the imaging optical lens 50 according to the fifth embodiment. Fig. 20 is a schematic view showing curvature of field and distortion of light having a wavelength of 555nm after passing through the imaging optical lens 50 according to the fifth embodiment.
As shown in table 33, the fifth embodiment satisfies each conditional expression.
In the present embodiment, the imaging optical lens has an entrance pupil diameter of 1.541mm, a full field height of 2.934mm, a diagonal field angle of 89.37 °, a wide angle, and a high profile, and has excellent optical characteristics with on-axis and off-axis chromatic aberration sufficiently corrected.
(sixth embodiment)
The sixth embodiment is basically the same as the first embodiment, and the same reference numerals as in the first embodiment, and only different points will be described below.
Tables 21 and 22 show design data of the imaging optical lens 60 according to the sixth embodiment of the present invention.
[ TABLE 21 ]
Table 22 shows aspherical surface data of each lens in the imaging optical lens 60 according to the sixth embodiment of the present invention.
[ TABLE 22 ]
Tables 23 and 24 show the inflection points and stagnation point design data of each lens in the imaging optical lens 60 according to the sixth embodiment of the present invention.
[ TABLE 23 ]
| Number of points of inflection | Position of reverse curvature 1 | Position of |
Position of reverse curvature 3 | |
| |
0 | |||
| |
0 | |||
| R3 | 1 | 0.815 | ||
| |
2 | 0.715 | 0.975 | |
| R5 | 1 | 0.935 | ||
| R6 | 1 | 0.905 | ||
| |
2 | 0.975 | 1.255 | |
| R8 | 1 | 1.305 | ||
| |
0 | |||
| R10 | 2 | 0.215 | 1.125 | |
| |
2 | 0.675 | 1.615 | |
| |
2 | 0.565 | 1.875 | |
| R13 | 3 | 1.155 | 1.745 | 1.935 |
| R14 | 2 | 1.005 | 1.405 |
[ TABLE 24 ]
Fig. 22 and 23 are schematic diagrams showing axial aberrations and chromatic aberration of magnification of light having wavelengths of 470nm, 510nm, 555nm, 610nm, and 650nm, respectively, after passing through the imaging optical lens 60 according to the sixth embodiment. Fig. 24 is a schematic view showing curvature of field and distortion of light having a wavelength of 555nm after passing through the imaging optical lens 60 according to the sixth embodiment.
As shown in table 33, the sixth embodiment satisfies each conditional expression.
In the present embodiment, the imaging optical lens has an entrance pupil diameter of 1.936mm, a full field image height of 2.934mm, a diagonal field angle of 75.99 °, a wide angle, and a high profile, and has excellent optical characteristics with on-axis and off-axis chromatic aberration sufficiently corrected.
(seventh embodiment)
The seventh embodiment is basically the same as the first embodiment, the same reference numerals as in the first embodiment, and only different points will be described below.
Tables 25 and 26 show design data of the imaging optical lens 70 according to the seventh embodiment of the present invention.
[ TABLE 25 ]
Table 26 shows aspherical surface data of each lens in the imaging optical lens 70 according to the seventh embodiment of the present invention.
[ TABLE 26 ]
Tables 27 and 28 show the inflection points and stagnation point design data of each lens in the imaging optical lens 70 according to the seventh embodiment of the present invention.
[ TABLE 27 ]
[ TABLE 28 ]
| Number of stagnation points | Location of stagnation 1 | Location of |
|
| |
0 | ||
| |
0 | ||
| R3 | 1 | 0.995 | |
| |
2 | 0.965 | 0.995 |
| R5 | 1 | 1.055 | |
| R6 | 1 | 1.085 | |
| |
0 | ||
| R8 | 1 | 0.095 | |
| R9 | 1 | 0.305 | |
| |
2 | 0.455 | 1.375 |
| R11 | 1 | 1.105 | |
| R12 | 1 | 1.135 | |
| R13 | 1 | 0.885 | |
| R14 | 1 | 1.125 |
Fig. 26 and 27 are schematic diagrams showing axial aberrations and chromatic aberration of magnification of light having wavelengths of 470nm, 510nm, 555nm, 610nm, and 650nm, respectively, after passing through the imaging optical lens 70 according to the seventh embodiment. Fig. 28 is a schematic view showing curvature of field and distortion of light having a wavelength of 555nm after passing through the imaging optical lens 70 according to the seventh embodiment.
As shown in table 33, the seventh embodiment satisfies each conditional expression.
In the present embodiment, the imaging optical lens has an entrance pupil diameter of 1.908mm, a full field height of 2.934mm, a diagonal field angle of 76.79 °, a wide angle, and a high profile, and has excellent optical characteristics with on-axis and off-axis chromatic aberration sufficiently corrected.
(eighth embodiment)
The eighth embodiment is basically the same as the first embodiment, and the same reference numerals as in the first embodiment, and only different points will be described below.
Tables 29 and 30 show design data of the imaging optical lens 80 according to the eighth embodiment of the present invention.
[ TABLE 29 ]
Table 30 shows aspherical surface data of each lens in the imaging optical lens 80 according to the eighth embodiment of the present invention.
[ TABLE 30 ]
Tables 31 and 32 show the inflection points and the stagnation point design data of each lens in the imaging optical lens 80 according to the eighth embodiment of the present invention.
[ TABLE 31 ]
| Number of points of inflection | Position of reverse curvature 1 | Position of |
Position of reverse curvature 3 | |
| |
0 | |||
| |
0 | |||
| R3 | 1 | 0.745 | ||
| |
2 | 0.665 | 1.015 | |
| R5 | 1 | 0.955 | ||
| R6 | 1 | 0.895 | ||
| R7 | 3 | 0.245 | 0.485 | 0.945 |
| |
0 | |||
| R9 | 1 | 0.455 | ||
| |
2 | 0.185 | 1.485 | |
| R11 | 1 | 0.575 | ||
| R12 | 1 | 0.695 | ||
| R13 | 1 | 0.345 | 1.515 | |
| R14 | 2 | 0.475 | 1.945 |
[ TABLE 32 ]
| Number of stagnation points | Location of stagnation 1 | Location of |
|
| |
0 | ||
| |
0 | ||
| R3 | 1 | 0.975 | |
| |
2 | 0.935 | 1.045 |
| |
0 | ||
| R6 | 1 | 1.045 | |
| R7 | 1 | 1.105 | |
| |
0 | ||
| R9 | 1 | 0.815 | |
| R10 | 1 | 0.385 | |
| R11 | 1 | 1.005 | |
| R12 | 1 | 1.125 | |
| R13 | 1 | 0.655 | |
| R14 | 1 | 1.105 |
Fig. 30 and 31 are schematic diagrams showing axial aberrations and chromatic aberration of magnification of light having wavelengths of 470nm, 510nm, 555nm, 610nm, and 650nm, respectively, after passing through the imaging optical lens 80 according to the eighth embodiment. Fig. 32 is a schematic view showing curvature of field and distortion of light having a wavelength of 555nm after passing through the imaging optical lens 80 according to the eighth embodiment.
Table 33 below shows the numerical values corresponding to the respective conditional expressions in the present embodiment, in accordance with the conditional expressions described above. Obviously, the imaging optical system of the present embodiment satisfies the above conditional expressions.
In the present embodiment, the imaging optical lens has an entrance pupil diameter of 1.930mm, a full field height of 2.934mm, a diagonal field angle of 76.82 °, a wide angle, and a high profile, and has excellent optical characteristics with on-axis and off-axis chromatic aberration sufficiently corrected.
[ TABLE 33 ]
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific embodiments for practicing the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (19)
1. An imaging optical lens, in order from an object side to an image side, comprising: the first lens element, the second lens element, the third lens element, the fourth lens element, the fifth lens element, the sixth lens element and the seventh lens element have negative refractive power;
the first lens is made of glass, the second lens is made of plastic, the third lens is made of plastic, the fourth lens is made of plastic, the fifth lens is made of plastic, the sixth lens is made of glass, and the seventh lens is made of plastic;
the focal length of the imaging optical lens is f, the focal length of the first lens is f1, the refractive index of the first lens is n1, the refractive index of the sixth lens is n6, the focal length of the third lens is f3, the focal length of the fourth lens is f4, the radius of curvature of the object-side surface of the seventh lens is R13, the radius of curvature of the image-side surface of the seventh lens is R14, and the following relational expressions are satisfied:
1≤f1/f≤1.5；
1.7≤n1≤2.2；
1.7≤n6≤2.2；
-2≤f3/f4≤2；
-10≤(R13+R14)/(R13-R14)≤10。
2. the imaging optical lens of claim 1, wherein the first lens element with positive refractive power has a convex object-side surface at paraxial region;
the radius of curvature of the object-side surface of the first lens is R1, the radius of curvature of the image-side surface of the first lens is R2, the on-axis thickness of the first lens is d1, and the following relation is satisfied:
-5.96≤(R1+R2)/(R1-R2)≤-0.09；
0.12mm≤d1≤0.70mm。
3. the imaging optical lens according to claim 2, wherein the imaging optical lens satisfies the following relationship:
-3.73≤(R1+R2)/(R1-R2)≤-0.12；
0.20mm≤d1≤0.56mm。
4. the imaging optical lens of claim 1, wherein the focal length of the imaging optical lens is f, the focal length of the second lens is f2, the radius of curvature of the object-side surface of the second lens is R3, the radius of curvature of the image-side surface of the second lens is R4, the on-axis thickness of the second lens is d3, and the following relationship is satisfied:
-53.24≤f2/f≤4.45；
0.60≤(R3+R4)/(R3-R4)≤36.42；
0.11mm≤d3≤0.88mm。
5. the imaging optical lens according to claim 4, wherein the imaging optical lens satisfies the following relation:
-33.27≤f2/f≤3.56；
0.95≤(R3+R4)/(R3-R4)≤29.14；
0.18mm≤d3≤0.70mm。
6. the imaging optical lens of claim 1, wherein the third lens object side surface is concave at a paraxial region;
the focal length of the image pickup optical lens is f, the focal length of the third lens is f3, the curvature radius of the object side surface of the third lens is R5, the curvature radius of the image side surface of the third lens is R6, the on-axis thickness of the third lens is d5, and the following relations are satisfied:
-2.85≤f3/f≤23.36；
0.32≤(R5+R6)/(R5-R6)≤17.73；
0.09mm≤d5≤0.38mm。
7. the imaging optical lens according to claim 6, wherein the imaging optical lens satisfies the following relation:
-1.78≤f3/f≤18.68；
0.51≤(R5+R6)/(R5-R6)≤14.18；
0.15mm≤d5≤0.31mm。
8. the imaging optical lens of claim 1, wherein the focal length of the imaging optical lens is f, the focal length of the fourth lens is f4, the radius of curvature of the object-side surface of the fourth lens is R7, the radius of curvature of the image-side surface of the fourth lens is R8, the on-axis thickness of the fourth lens is d7, and the following relationship is satisfied:
-34.75≤f4/f≤159.01；
-859.54≤(R7+R8)/(R7-R8)≤9；
0.20mm≤d7≤1.63mm。
9. the image-pickup optical lens according to claim 8, wherein the image-pickup optical lens satisfies the following relation:
-21.72≤f4/f≤127.21；
-537.21≤(R7+R8)/(R7-R8)≤7.2；
0.32mm≤d7≤1.30mm。
10. the imaging optical lens of claim 1, wherein the fifth lens image side surface is concave at the paraxial region;
the focal length of the image pickup optical lens is f, the focal length of the fifth lens is f5, the curvature radius of the object side surface of the fifth lens is R9, the curvature radius of the image side surface of the fifth lens is R10, the on-axis thickness of the fifth lens is d9, and the following relations are satisfied:
-15.41≤f5/f≤3.45；
-4.07≤(R9+R10)/(R9-R10)≤4.83；
0.12mm≤d9≤0.77mm。
11. the image-pickup optical lens according to claim 10, wherein the image-pickup optical lens satisfies the following relation:
-9.63≤f5/f≤2.76；
-2.54≤(R9+R10)/(R9-R10)≤3.87；
0.19mm≤d9≤0.62mm。
12. the image capturing optical lens assembly according to claim 1, wherein the sixth lens element with positive refractive power has a convex object-side surface at paraxial region;
the focal length of the imaging optical lens is f, the focal length of the sixth lens is f6, the curvature radius of the object side surface of the sixth lens is R11, the curvature radius of the image side surface of the sixth lens is R12, the on-axis thickness of the sixth lens is d11, and the following relations are satisfied:
0.28≤f6/f≤7.56；
-30.09≤(R11+R12)/(R11-R12)≤-0.07；
0.14mm≤d11≤1.10mm。
13. the image-pickup optical lens according to claim 12, wherein the image-pickup optical lens satisfies the following relation:
0.45≤f6/f≤6.04；
-18.81≤(R11+R12)/(R11-R12)≤-0.09；
0.22mm≤d11≤0.88mm。
14. the imaging optical lens according to claim 1, characterized in that;
the focal length of the imaging optical lens is f, the focal length of the seventh lens is f7, the curvature radius of the object side surface of the seventh lens is R13, the curvature radius of the image side surface of the seventh lens is R14, the on-axis thickness of the seventh lens is d13, and the following relations are satisfied:
-8.42≤f7/f≤-0.51；
0.06mm≤d13≤0.58mm。
15. the image-pickup optical lens according to claim 14, wherein the image-pickup optical lens satisfies the following relation:
-5.26≤f7/f≤-0.63；
0.10mm≤d13≤0.46mm。
16. a camera optical lens according to claim 1, characterized in that the total optical length TTL of the camera optical lens is less than or equal to 5.56 mm.
17. A camera optical lens according to claim 16, characterized in that the total optical length TTL of the camera optical lens is less than or equal to 5.31 mm.
18. A camera optical lens according to claim 1, characterized in that the F-number of the aperture of the camera optical lens is less than or equal to 1.96.
19. A camera optical lens according to claim 18, characterized in that the F-number of the aperture of the camera optical lens is less than or equal to 1.92.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810203790.1A CN108318998B (en) | 2018-03-13 | 2018-03-13 | Image pickup optical lens |
| JP2018082649A JP6489515B1 (en) | 2018-03-13 | 2018-04-23 | Imaging optical lens |
| US15/973,073 US10620402B2 (en) | 2018-03-13 | 2018-05-07 | Camera optical lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810203790.1A CN108318998B (en) | 2018-03-13 | 2018-03-13 | Image pickup optical lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108318998A CN108318998A (en) | 2018-07-24 |
| CN108318998B true CN108318998B (en) | 2020-09-18 |
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| CN201810203790.1A Expired - Fee Related CN108318998B (en) | 2018-03-13 | 2018-03-13 | Image pickup optical lens |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI660196B (en) | 2018-03-30 | 2019-05-21 | 大立光電股份有限公司 | Photographing optical lens system, image capturing unit and electronic device |
| TWI667509B (en) | 2018-05-10 | 2019-08-01 | 大立光電股份有限公司 | Photographing optical lens assembly, imaging apparatus and electronic device |
| TWI657282B (en) | 2018-09-05 | 2019-04-21 | 大立光電股份有限公司 | Imaging lens system, image capturing unit and electronic device |
| CN109828353B (en) * | 2018-12-27 | 2021-07-30 | 瑞声光学解决方案私人有限公司 | Image pickup optical lens |
| CN109839719B (en) * | 2018-12-27 | 2021-05-04 | 瑞声光学解决方案私人有限公司 | Image pickup optical lens |
| CN109613679B (en) | 2018-12-31 | 2021-09-28 | 诚瑞光学(常州)股份有限公司 | Image pickup optical lens |
| CN109709660B (en) * | 2018-12-31 | 2021-10-01 | 诚瑞光学(苏州)有限公司 | Image pickup optical lens |
| CN109445076B (en) * | 2018-12-31 | 2021-10-19 | 诚瑞光学(苏州)有限公司 | Image pickup optical lens |
| CN109324398B (en) * | 2019-01-02 | 2019-04-02 | 江西联益光学有限公司 | Optical imaging lens and imaging device |
| CN110398820B (en) * | 2019-06-30 | 2021-10-19 | 瑞声光学解决方案私人有限公司 | Image pickup optical lens |
| WO2021127820A1 (en) * | 2019-12-23 | 2021-07-01 | 诚瑞光学(常州)股份有限公司 | Camera optical lens |
| WO2021128397A1 (en) * | 2019-12-28 | 2021-07-01 | 诚瑞光学(常州)股份有限公司 | Camera optical lens |
| CN111458848B (en) * | 2020-06-16 | 2020-09-15 | 瑞声通讯科技(常州)有限公司 | Image pickup optical lens |
| CN112285910B (en) * | 2020-12-31 | 2021-03-02 | 常州市瑞泰光电有限公司 | Image pickup optical lens |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3026241B2 (en) * | 1991-12-12 | 2000-03-27 | コニカ株式会社 | Photographic lens |
| JP3739529B2 (en) * | 1996-12-06 | 2006-01-25 | オリンパス株式会社 | Zoom lens |
| JPH10206731A (en) * | 1997-01-23 | 1998-08-07 | Canon Inc | Original reading lens and original reader using the same |
| JP2008039971A (en) * | 2006-08-03 | 2008-02-21 | Nikon Corp | Lens system designing method |
| JP2009069369A (en) * | 2007-09-12 | 2009-04-02 | Fujinon Corp | Imaging lens and imaging apparatus |
| US8498065B2 (en) * | 2008-07-02 | 2013-07-30 | Nikon Corporation | Lens system and optical apparatus |
| US9291800B2 (en) * | 2013-03-29 | 2016-03-22 | Canon Kabushiki Kaisha | Lens apparatus and image pickup apparatus including the same |
| CN106291886B (en) * | 2015-05-12 | 2019-01-01 | 亚太精密工业(深圳)有限公司 | Wide-angle lens |
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