CN110361839B - Image pickup optical lens - Google Patents
Image pickup optical lens Download PDFInfo
- Publication number
- CN110361839B CN110361839B CN201910581581.5A CN201910581581A CN110361839B CN 110361839 B CN110361839 B CN 110361839B CN 201910581581 A CN201910581581 A CN 201910581581A CN 110361839 B CN110361839 B CN 110361839B
- Authority
- CN
- China
- Prior art keywords
- lens
- image
- curvature
- radius
- ttl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
-
- 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
Abstract
The invention provides an image pickup optical lens, which comprises the following components in sequence from an object side to an image side: a first lens element with positive refractive power, a second lens element with negative refractive power, a third lens element with refractive power, a fourth lens element with refractive power, a fifth lens element with positive refractive power, and a sixth lens element with negative refractive power; the focal length of the fifth lens is f5, the focal length of the sixth lens is f6, the radius of curvature of the object-side surface of the third lens is R5, the radius of curvature of the image-side surface of the third lens is R6, the on-axis thickness of the fifth lens is d9, and the on-axis distance from the image-side surface of the fifth lens to the object-side surface of the sixth lens is d10, so that the following relational expressions are satisfied: f5/f6 is more than or equal to-3.00 and less than or equal to-1.70; d9/d10 is more than or equal to 0.50 and less than or equal to 0.80; 2.50 is less than or equal to (R5+ R6)/(R5-R6) is less than or equal to 5.00. The camera optical lens provided by the invention has good optical performance, and meets the design requirements of large aperture, wide angle and ultra-thinness.
Description
[ technical field ] A method for producing a semiconductor device
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 of the invention ]
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, four-piece or even five-piece lens structure. However, 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 for the imaging quality is continuously improved, a six-piece lens structure gradually appears in the lens design, although the common six-piece lens has good optical performance, the focal power, the lens interval and the lens shape setting still have certain irrationality, so that the design requirements of ultra-thinning and wide-angle cannot be met while the lens structure has good optical performance.
[ summary of the invention ]
In view of the above problems, an object of the present invention is to provide an imaging optical lens that has good optical performance and satisfies design requirements for a large aperture, ultra-thin thickness, and wide angle.
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: a first lens element with positive refractive power, a second lens element with negative refractive power, a third lens element with refractive power, a fourth lens element with refractive power, a fifth lens element with positive refractive power, and a sixth lens element with negative refractive power;
the focal length of the fifth lens is f5, the focal length of the sixth lens is f6, the radius of curvature of the object-side surface of the third lens is R5, the radius of curvature of the image-side surface of the third lens is R6, the on-axis thickness of the fifth lens is d9, and the on-axis distance from the image-side surface of the fifth lens to the object-side surface of the sixth lens is d10, so that the following relations are satisfied:
-3.00≤f5/f6≤-1.70；
0.50≤d9/d10≤0.80；
2.50≤(R5+R6)/(R5-R6)≤5.00。
preferably, the focal length of the image pickup optical lens is f, and the focal length of the first lens is f1, and the following relationship is satisfied:
0.80≤f1/f≤0.95。
preferably, an on-axis distance from the image-side surface of the first lens to the object-side surface of the second lens is d2, and an on-axis thickness of the second lens is d3, and the following relation is satisfied:
0.25≤d2/d3≤0.50。
preferably, the curvature radius of the object-side surface of the first lens element is R1, the curvature radius of the image-side surface of the first lens element is R2, the on-axis thickness of the first lens element is d1, and the total optical length of the imaging optical lens system is TTL, which satisfies the following relationship:
-4.04≤(R1+R2)/(R1-R2)≤-1.18；
0.07≤d1/TTL≤0.21。
preferably, the focal length of the image capturing optical lens is f, the focal length of the second lens element is f2, the radius of curvature of the object-side surface of the second lens element is R3, the radius of curvature of the image-side surface of the second lens element is R4, the on-axis thickness of the second lens element is d3, and the total optical length of the image capturing optical lens is TTL, and the following relationships are satisfied:
-8.02≤f2/f≤-1.79；
1.13≤(R3+R4)/(R3-R4)≤4.71；
0.03≤d3/TTL≤0.08。
preferably, the focal length of the image pickup optical lens is f, the focal length of the third lens is f3, the on-axis thickness of the third lens is d5, and the total optical length of the image pickup optical lens is TTL, and satisfies the following relation:
-49.87≤f3/f≤1819.41；
0.03≤d5/TTL≤0.12。
preferably, the focal length of the image capturing optical lens is f, the focal length of the fourth lens element is f4, the radius of curvature of the object-side surface of the fourth lens element is R7, the radius of curvature of the image-side surface of the fourth lens element is R8, the on-axis thickness of the fourth lens element is d7, and the total optical length of the image capturing optical lens is TTL, and the following relationships are satisfied:
-10.81≤f4/f≤105.35；
-21.89≤(R7+R8)/(R7-R8)≤291.20；
0.03≤d7/TTL≤0.08。
preferably, the focal length of the image pickup optical lens is f, the curvature radius of the object-side surface of the fifth lens element is R9, the curvature radius of the image-side surface of the fifth lens element is R10, the on-axis thickness of the fifth lens element is d9, and the total optical length of the image pickup optical lens is TTL, and the following relationships are satisfied:
0.57≤f5/f≤3.05；
-2.77≤(R9+R10)/(R9-R10)≤-0.20；
0.04≤d9/TTL≤0.16。
preferably, the focal length of the image pickup optical lens is f, the curvature radius of the object-side surface of the sixth lens element is R11, the curvature radius of the image-side surface of the sixth lens element is R12, the on-axis thickness of the sixth lens element is d11, and the total optical length of the image pickup optical lens is TTL, and the following relationships are satisfied:
-1.46≤f6/f≤-0.43；
0.13≤(R11+R12)/(R11-R12)≤0.56；
0.04≤d11/TTL≤0.16。
preferably, the total optical length of the image pickup optical lens is TTL, and the image height of the image pickup optical lens is IH, which satisfy the following relation:
TTL/IH≤1.22。
the invention has the beneficial effects that: the imaging optical lens according to the present invention has excellent optical performance, has characteristics of a large aperture, a wide angle of view, and an ultra-thin profile, and is particularly suitable for a mobile phone camera lens module and a WEB camera lens which are constituted by high-pixel imaging elements such as CCDs and CMOSs.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
fig. 1 is a schematic configuration diagram of an imaging optical lens according to a first embodiment;
fig. 2 is a schematic view of axial aberrations of the image-taking optical lens shown in 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 shown in FIG. 1;
fig. 5 is a schematic configuration diagram of an imaging optical lens according to a second embodiment;
fig. 6 is a schematic view of axial aberrations of the image pickup optical lens shown in 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 shown in FIG. 5;
fig. 9 is a schematic configuration diagram of an imaging optical lens according to a third embodiment;
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.
[ detailed description ] embodiments
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 imaging optical lens 10 according to a first embodiment of the present invention, and the imaging optical lens 10 includes six 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, and a sixth lens L6. An optical element such as an optical filter (filter) GF may be disposed between the sixth lens L6 and the image plane Si.
In the present embodiment, the first lens element L1 has positive refractive power, the second lens element L2 has negative refractive power, the third lens element L3 has refractive power, the fourth lens element L4 has refractive power, the fifth lens element L5 has positive refractive power, and the sixth lens element L6 has negative refractive power.
In the present embodiment, the focal length of the fifth lens L5 is defined as f5, and the focal length of the sixth lens L6 is defined as f6, which satisfy the following relation: f5/f6 is more than or equal to-3.00 and less than or equal to-1.70; the ratio of the focal length of the fifth lens L5 to the focal length of the sixth lens L6 is specified, which contributes to the improvement of the optical system performance within the conditional expression.
Defining the on-axis thickness of the fifth lens L5 as d9, the on-axis distance from the image-side surface of the fifth lens L5 to the object-side surface of the sixth lens L6 as d10, the following relationship is satisfied: d9/d10 is more than or equal to 0.50 and less than or equal to 0.80; the ratio of the on-axis thickness of the fifth lens L5 to the on-axis distance from the image-side surface of the fifth lens L5 to the object-side surface of the sixth lens L6 is specified, which contributes to the processing of the lens and the assembly of the lens barrel within the conditional expression.
The curvature radius of the object side surface of the third lens L3 is defined as R5, the curvature radius of the image side surface of the third lens L3 is defined as R6, and the following relational expressions are satisfied: 2.50-5.00 (R5+ R6)/(R5-R6); the shape of the third lens L3 is defined, and the degree of deflection of the light passing through the lens can be reduced within the range defined by the conditional expression, thereby effectively reducing the aberration.
Defining the focal length f of the image pickup optical lens 10 and the focal length f1 of the first lens L1, the following relations are satisfied: f1/f is more than or equal to 0.80 and less than or equal to 0.95; the ratio of the focal length of the first lens L1 to the focal length of the image pickup optical lens 10 is specified, so that the spherical aberration generated by the first lens is effectively controlled, and the imaging quality is improved.
Defining the on-axis distance d2 from the image-side surface of the first lens L1 to the object-side surface of the second lens L2, the on-axis thickness d3 of the second lens L2 satisfies the following relation: d2/d3 is more than or equal to 0.25 and less than or equal to 0.50; the ratio of the on-axis distance from the image-side surface of the first lens L1 to the object-side surface of the second lens L2 to the on-axis thickness of the second lens L2 is specified, which is favorable for improving the system image quality in the case of ultra-thinning within a condition range.
The curvature radius of the object side surface of the first lens L1 is defined as R1, the curvature radius of the image side surface of the first lens L1 is defined as R2, and the following relational expressions are satisfied: 4.04 (R1+ R2)/(R1-R2) is less than or equal to-1.18; the shape of the first lens L1 is appropriately controlled so that the first lens L1 can effectively correct the system spherical aberration.
The optical imaging lens 10 has a total optical length TTL, and an on-axis thickness of the first lens L1 is d1, which satisfies the following relationship: d1/TTL is more than or equal to 0.07 and less than or equal to 0.21, and ultra-thinning is facilitated.
Defining the focal length of the second lens L2 as f2, the following relation is satisfied: 8.02 ≦ f2/f ≦ -1.79, and it is advantageous to correct aberrations of the optical system by controlling the negative power of the second lens L2 in a reasonable range.
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 relational expression is satisfied: 1.13-4.71 of (R3+ R4)/(R3-R4); the shape of the second lens L2 is defined, and when the condition is within the range, the lens is made thinner and wider, which is advantageous for correcting the problem of chromatic aberration on the axis.
The on-axis thickness of the second lens L2 is d3, the total optical length of the optical imaging lens 10 is TTL, and the following relational expression is satisfied: d3/TTL is more than or equal to 0.03 and less than or equal to 0.08, and ultra-thinning is facilitated.
Defining a focal length f3 of the third lens L3, and a focal length f of the image pickup optical lens, satisfying the following relationship: 49.87. ltoreq. f 3/f. ltoreq. 1819.41; within the range of conditions, the system has better imaging quality and lower sensitivity through reasonable distribution of the optical power.
The on-axis thickness of the third lens L3 is d5, the total optical length of the optical imaging lens 10 is TTL, and the following relational expression is satisfied: d5/TTL is more than or equal to 0.03 and less than or equal to 0.12, and ultra-thinning is facilitated.
Defining a focal length f4 of the fourth lens element and a focal length f of the image pickup optical lens, satisfying the following relation: -10.81. ltoreq. f 4/f. ltoreq. 105.35; within the range of conditions, the system has better imaging quality and lower sensitivity through reasonable distribution of the optical power.
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 relational expression is satisfied: -21.89 ≤ (R7+ R8)/(R7-R8) ≤ 291.20; the shape of the fourth lens L4 is defined, and when the shape is within the range, it is advantageous to correct the problem such as the aberration of the off-axis view angle with the progress of ultra-thinning and wide-angle.
The on-axis thickness of the fourth lens L4 is d7, the total optical length of the optical imaging lens 10 is TTL, and the following relational expression is satisfied: d7/TTL is more than or equal to 0.03 and less than or equal to 0.08, and ultra-thinning is facilitated.
Defining the focal length of the fifth lens L5 as f5, the focal length of the image pickup optical lens as f, and satisfying the following relation: f5/f is more than or equal to 0.57 and less than or equal to 3.05; the definition of the fifth lens L5 is effective to make the light angle of the camera lens 10 smooth, and reduce tolerance sensitivity.
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 relational expression is satisfied: -2.77 (R9+ R10)/(R9-R10) is less than or equal to-0.20; the shape of the fifth lens L5 is defined, and when the shape is within the range, it is advantageous to correct the problem such as the aberration of the off-axis view angle with the progress of ultra-thinning and wide-angle.
The on-axis thickness of the fifth lens L5 is d9, the total optical length of the optical imaging lens 10 is TTL, and the following relational expression is satisfied: d9/TTL is more than or equal to 0.04 and less than or equal to 0.16, and ultra-thinning is facilitated.
Defining the focal length of the sixth lens L6 as f6, the following relation is satisfied: f6/f is not less than 1.46 and not more than-0.43; through reasonable distribution of the optical power, the system has better imaging quality and lower sensitivity.
The curvature radius of the object side surface of the sixth lens L6 is R11, the curvature radius of the image side surface of the sixth lens L6 is R12, and the following relations are satisfied: (R11+ R12)/(R11-R12) is not more than 0.13 and not more than 0.56; the shape of the sixth lens L6 is defined, and when the shape is within the range, it is advantageous to correct the problem of aberration of the off-axis view angle and the like as the thickness becomes thinner and the angle becomes wider.
The on-axis thickness of the sixth lens element L6 is d11, the total optical length of the optical imaging lens assembly 10 is TTL, and the following relationship is satisfied: d11/TTL is more than or equal to 0.04 and less than or equal to 0.16, and ultra-thinning is facilitated.
Defining the total optical length of the image pickup optical lens 10 as TTL, and the image height of the image pickup optical lens 10 as IH, and satisfying the following relation: TTL/IH is less than or equal to 1.22, and ultra-thinning is facilitated.
When the above relationship is satisfied, the imaging optical lens 10 has good optical imaging performance, and can satisfy the design requirements of large aperture, ultra-thin, and wide angle; in accordance with the characteristics of the optical lens 10, the optical lens 10 is particularly suitable for a mobile phone camera lens module and a WEB camera lens which are configured by image pickup devices such as a high-pixel CCD and a CMOS.
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. The unit of focal length, on-axis distance, curvature radius, on-axis thickness, position of reverse curvature and position of stagnation point is mm.
TTL: the total optical length (on-axis distance from the object side surface of the first lens L1 to the image plane) in units of mm;
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.
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: an aperture;
r: the radius of curvature of the optical surface and the radius of curvature of the lens as the center;
r1: the radius of curvature of the object-side surface of the first lens L1;
r2: the radius of curvature of the image-side surface of the first lens L1;
r3: the radius of curvature of the object-side surface of the second lens L2;
r4: the radius of curvature of the image-side surface of the second lens L2;
r5: the radius of curvature of the object-side surface of the third lens L3;
r6: the radius of curvature of the image-side surface of the third lens L3;
r7: the radius of curvature of the object-side surface of the fourth lens L4;
r8: the radius of curvature of the image-side surface of the fourth lens L4;
r9: a radius of curvature of the object side surface of the fifth lens L5;
r10: a radius of curvature of the image-side surface of the fifth lens L5;
r11: a radius of curvature of the object side surface of the sixth lens L6;
r12: a radius of curvature of the image-side surface of the sixth lens L6;
r13: radius of curvature of the object side of the optical filter GF;
r14: the radius of curvature of the image-side surface of the optical filter GF;
d: an on-axis thickness of the lenses and an 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;
d 1: the on-axis thickness of the first lens L1;
d 2: the on-axis distance from the image-side surface of the first lens L1 to the object-side surface of the second lens L2;
d 3: the on-axis thickness of the second lens L2;
d 4: the on-axis distance from the image-side surface of the second lens L2 to the object-side surface of the third lens L3;
d 5: 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: the on-axis distance from the image-side surface of the sixth lens L6 to the object-side surface of the optical filter GF;
d 13: on-axis thickness of the optical filter GF;
d 14: the on-axis distance from the image side surface of the optical filter GF to the image surface;
nd: the refractive index of the d-line;
nd 1: the refractive index of the d-line of the first lens L1;
nd 2: the refractive index of the d-line of the second lens L2;
nd 3: the refractive index of the d-line of the third lens L3;
nd 4: the refractive index of the d-line of the fourth lens L4;
nd 5: the refractive index of the d-line of the fifth lens L5;
nd 6: the refractive index of the d-line of the sixth lens L6;
ndg: the refractive index of the d-line of the optical filter GF;
vd: an 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;
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, A16, A18, A20 are aspheric coefficients.
y＝(x2/R)/[1+{1-(k+1)(x2/R2)}1/2]+A4x4+A6x6+A8x8+A10x10+A12x12+A14x14+A16x16+A18x18+A20x20 (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. P1R1 and P1R2 represent the object-side surface and the image-side surface of the first lens L1, P2R1 and P2R2 represent the object-side surface and the image-side surface of the second lens L2, P3R1 and P3R2 represent the object-side surface and the image-side surface of the third lens L3, P4R1 and P4R2 represent the object-side surface and the image-side surface of the fourth lens L4, P5R1 and P5R2 represent the object-side surface and the image-side surface of the fifth lens L5, and P6R1 and P6R2 represent the object-side surface and the image-side surface of the sixth lens L6, 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 | |
| |
0 | 0 |
| P1R2 | 1 | 0.755 |
| |
0 | 0 |
| |
0 | 0 |
| P3R1 | 1 | 0.175 |
| P3R2 | 1 | 0.215 |
| P4R1 | 1 | 0.375 |
| P4R2 | 1 | 0.455 |
| P5R1 | 1 | 0.755 |
| |
0 | 0 |
| P6R1 | 1 | 2.145 |
| P6R2 | 1 | 0.665 |
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.
Table 13 shown later shows values corresponding to the parameters defined in the conditional expressions, for each of the numerical values in the first, second, and third embodiments.
As shown in table 13, the first embodiment satisfies each conditional expression.
In the present embodiment, the imaging optical lens 10 has an entrance pupil diameter of 1.765mm, a full field height of 3.282mm, and a diagonal field angle of 83.80 °, and has excellent optical characteristics, with a wide angle and a slim profile, and with a sufficient correction of on-axis and off-axis chromatic aberration.
(second embodiment)
The second embodiment is basically the same as the first embodiment, and the reference numerals are the same as those in the first embodiment, and the configuration of the image pickup optical lens 20 of the second embodiment is shown in fig. 5, and only the differences 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 ]
[ TABLE 8 ]
| Number of stagnation points | Location of stagnation 1 | Location of stagnation 2 | |
| |
0 | 0 | 0 |
| P1R2 | 1 | 0.675 | 0 |
| |
0 | 0 | 0 |
| |
0 | 0 | 0 |
| P3R1 | 1 | 0.815 | 0 |
| P3R2 | 1 | 0.935 | 0 |
| P4R1 | 1 | 0.395 | 0 |
| P4R2 | 1 | 0.415 | 0 |
| P5R1 | 2 | 0.635 | 1.905 |
| |
0 | 0 | 0 |
| P6R1 | 1 | 2.145 | 0 |
| P6R2 | 1 | 0.675 | 0 |
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 13, the second embodiment satisfies each conditional expression.
In the present embodiment, the imaging optical lens 20 has an entrance pupil diameter of 1.764mm, a full field height of 3.282mm, and a diagonal field angle of 83.60 °, and has excellent optical characteristics, with a wide angle and a slim profile, and with a sufficient correction of on-axis and off-axis chromatic aberration.
(third embodiment)
The third embodiment is basically the same as the first embodiment, and the reference numerals are the same as those in the first embodiment, and the configuration of the imaging optical lens 30 of the third embodiment is shown in fig. 9, and only the differences 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 ]
| Number of points of inflection | Position of reverse curvature 1 | Position of reverse curvature 2 | Position of reverse curvature 3 | Position of reverse curve 4 | |
| P1R1 | 1 | 0.835 | 0 | 0 | 0 |
| P1R2 | 2 | 0.425 | 0.865 | 0 | 0 |
| |
0 | 0 | 0 | 0 | 0 |
| |
0 | 0 | 0 | 0 | 0 |
| P3R1 | 1 | 0.745 | 0 | 0 | 0 |
| P3R2 | 1 | 0.865 | 0 | 0 | 0 |
| P4R1 | 2 | 0.245 | 0.975 | 0 | 0 |
| P4R2 | 2 | 0.255 | 1.295 | 0 | 0 |
| P5R1 | 2 | 0.445 | 1.375 | 0 | 0 |
| P5R2 | 4 | 0.235 | 1.385 | 1.945 | 1.965 |
| P6R1 | 2 | 1.045 | 2.335 | 0 | 0 |
| P6R2 | 3 | 0.315 | 2.285 | 2.525 | 0 |
[ TABLE 12 ]
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.
Table 13 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 lens of the present embodiment satisfies the above conditional expressions.
In the present embodiment, the imaging optical lens has an entrance pupil diameter of 1.758mm, a full field height of 3.282mm, and a diagonal field angle of 84.60 °, so that the imaging optical lens 30 has a wide angle of view, is made thinner, has a sufficient correction of on-axis and off-axis chromatic aberration, and has excellent optical characteristics.
[ TABLE 13 ]
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 (10)
1. An imaging optical lens, comprising six lens elements in order from an object side to an image side: a first lens element with positive refractive power, a second lens element with negative refractive power, a third lens element with refractive power, a fourth lens element with refractive power, a fifth lens element with positive refractive power, and a sixth lens element with negative refractive power;
the focal length of the fifth lens is f5, the focal length of the sixth lens is f6, the radius of curvature of the object-side surface of the third lens is R5, the radius of curvature of the image-side surface of the third lens is R6, the on-axis thickness of the fifth lens is d9, and the on-axis distance from the image-side surface of the fifth lens to the object-side surface of the sixth lens is d10, so that the following relations are satisfied:
-3.00≤f5/f6≤-1.70；
0.50≤d9/d10≤0.80；
2.50≤(R5+R6)/(R5-R6)≤5.00。
2. an imaging optical lens according to claim 1, wherein a focal length of the imaging optical lens is f, and a focal length of the first lens is f1, and the following relation is satisfied:
0.80≤f1/f≤0.95。
3. the imaging optical lens of claim 1, wherein the on-axis distance from the image-side surface of the first lens to the object-side surface of the second lens is d2, and the on-axis thickness of the second lens is d3, satisfying the following relationship:
0.25≤d2/d3≤0.50。
4. the image-capturing optical lens unit according to claim 1, wherein the radius of curvature of the object-side surface of the first lens element is R1, the radius of curvature of the image-side surface of the first lens element is R2, the on-axis thickness of the first lens element is d1, and the total optical length of the image-capturing optical lens unit is TTL, and the following relationships are satisfied:
-4.04≤(R1+R2)/(R1-R2)≤-1.18；
0.07≤d1/TTL≤0.21。
5. 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 total optical length of the imaging optical lens is TTL, and the following relationships are satisfied:
-8.02≤f2/f≤-1.79；
1.13≤(R3+R4)/(R3-R4)≤4.71；
0.03≤d3/TTL≤0.08。
6. the image-capturing optical lens of claim 1, wherein the focal length of the image-capturing optical lens is f, the focal length of the third lens is f3, the on-axis thickness of the third lens is d5, and the total optical length of the image-capturing optical lens is TTL, and the following relationship is satisfied:
-49.87≤f3/f≤1819.41；
0.03≤d5/TTL≤0.12。
7. 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 total optical length of the imaging optical lens is TTL, and the following relationships are satisfied:
-10.81≤f4/f≤105.35；
-21.89≤(R7+R8)/(R7-R8)≤291.20；
0.03≤d7/TTL≤0.08。
8. the image-capturing optical lens unit according to claim 1, wherein the image-capturing optical lens unit has a focal length f, a radius of curvature of the object-side surface of the fifth lens element is R9, a radius of curvature of the image-side surface of the fifth lens element is R10, an on-axis thickness of the fifth lens element is d9, and a total optical length TTL which satisfies the following relationship:
0.57≤f5/f≤3.05；
-2.77≤(R9+R10)/(R9-R10)≤-0.20；
0.04≤d9/TTL≤0.16。
9. the image-capturing optical lens unit according to claim 1, wherein the image-capturing optical lens unit has a focal length f, a radius of curvature of the object-side surface of the sixth lens element is R11, a radius of curvature of the image-side surface of the sixth lens element is R12, an on-axis thickness of the sixth lens element is d11, and a total optical length TTL which satisfies the following relationship:
-1.46≤f6/f≤-0.43；
0.13≤(R11+R12)/(R11-R12)≤0.56；
0.04≤d11/TTL≤0.16。
10. a camera optical lens according to claim 1, wherein the total optical length of the camera optical lens is TTL, and the image height of the camera optical lens is IH, and the following relationship is satisfied:
TTL/IH≤1.22。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910581581.5A CN110361839B (en) | 2019-06-29 | 2019-06-29 | Image pickup optical lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910581581.5A CN110361839B (en) | 2019-06-29 | 2019-06-29 | Image pickup optical lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110361839A CN110361839A (en) | 2019-10-22 |
| CN110361839B true CN110361839B (en) | 2021-08-17 |
Family
ID=68216038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910581581.5A Active CN110361839B (en) | 2019-06-29 | 2019-06-29 | Image pickup optical lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110361839B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021127826A1 (en) * | 2019-12-23 | 2021-07-01 | 诚瑞光学(常州)股份有限公司 | Camera optical lens |
| WO2021127889A1 (en) * | 2019-12-23 | 2021-07-01 | 诚瑞光学(常州)股份有限公司 | Camera optical lens |
| CN111198435B (en) * | 2020-02-24 | 2021-09-24 | 诚瑞光学(常州)股份有限公司 | Image pickup optical lens |
| CN114415355B (en) * | 2022-03-30 | 2022-08-23 | 江西晶超光学有限公司 | Optical system, camera module and electronic equipment |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08262324A (en) * | 1995-03-20 | 1996-10-11 | Ricoh Co Ltd | Small zoom lens |
| JP2000066102A (en) * | 1999-09-13 | 2000-03-03 | Canon Inc | Compact zoom lens |
| US6384986B1 (en) * | 1999-02-02 | 2002-05-07 | Canon Kabushiki Kaisha | Zoom lens and optical apparatus having the same |
| CN202256844U (en) * | 2011-06-10 | 2012-05-30 | 大立光电股份有限公司 | Optical image capturing lens assembly |
| TWI606260B (en) * | 2016-09-22 | 2017-11-21 | 新鉅科技股份有限公司 | Six-piece optical lens system |
| CN107817574A (en) * | 2016-09-12 | 2018-03-20 | 大立光电股份有限公司 | Image capturing lens assembly, image capturing device and electronic device |
| CN107843977A (en) * | 2017-12-14 | 2018-03-27 | 浙江舜宇光学有限公司 | Optical imaging lens |
| CN109061853A (en) * | 2018-08-14 | 2018-12-21 | 瑞声科技(新加坡)有限公司 | Camera optical camera lens |
| CN109283664A (en) * | 2018-12-05 | 2019-01-29 | 浙江舜宇光学有限公司 | Optical imagery eyeglass group |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109839728B (en) * | 2018-12-31 | 2021-03-19 | 瑞声光学解决方案私人有限公司 | Image pickup optical lens |
| CN109870786B (en) * | 2018-12-31 | 2021-03-02 | 瑞声光学解决方案私人有限公司 | Image pickup optical lens |
| CN109828354B (en) * | 2018-12-31 | 2021-05-04 | 瑞声光学解决方案私人有限公司 | Image pickup optical lens |
-
2019
- 2019-06-29 CN CN201910581581.5A patent/CN110361839B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08262324A (en) * | 1995-03-20 | 1996-10-11 | Ricoh Co Ltd | Small zoom lens |
| US6384986B1 (en) * | 1999-02-02 | 2002-05-07 | Canon Kabushiki Kaisha | Zoom lens and optical apparatus having the same |
| JP2000066102A (en) * | 1999-09-13 | 2000-03-03 | Canon Inc | Compact zoom lens |
| CN202256844U (en) * | 2011-06-10 | 2012-05-30 | 大立光电股份有限公司 | Optical image capturing lens assembly |
| CN107817574A (en) * | 2016-09-12 | 2018-03-20 | 大立光电股份有限公司 | Image capturing lens assembly, image capturing device and electronic device |
| TWI606260B (en) * | 2016-09-22 | 2017-11-21 | 新鉅科技股份有限公司 | Six-piece optical lens system |
| CN107843977A (en) * | 2017-12-14 | 2018-03-27 | 浙江舜宇光学有限公司 | Optical imaging lens |
| CN109061853A (en) * | 2018-08-14 | 2018-12-21 | 瑞声科技(新加坡)有限公司 | Camera optical camera lens |
| CN109283664A (en) * | 2018-12-05 | 2019-01-29 | 浙江舜宇光学有限公司 | Optical imagery eyeglass group |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110361839A (en) | 2019-10-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111929821B (en) | Image pickup optical lens | |
| CN110596859B (en) | Image pickup optical lens | |
| CN110412737B (en) | Image pickup optical lens | |
| CN110361839B (en) | Image pickup optical lens | |
| CN110865449B (en) | Image pickup optical lens | |
| CN110398822B (en) | Image pickup optical lens | |
| CN111399196B (en) | Image pickup optical lens | |
| CN110927930B (en) | Image pickup optical lens | |
| CN110221411B (en) | Image pickup optical lens | |
| CN110297315B (en) | Image pickup optical lens | |
| CN110361841B (en) | Image pickup optical lens | |
| CN110398821B (en) | Image pickup optical lens | |
| CN111077647B (en) | Image pickup optical lens | |
| CN111142218B (en) | Image pickup optical lens | |
| CN111007647B (en) | Image pickup optical lens | |
| CN110955022B (en) | Image pickup optical lens | |
| CN110737076B (en) | Image pickup optical lens | |
| CN110398818B (en) | Image pickup optical lens | |
| CN111025541B (en) | Image pickup optical lens | |
| CN112230382B (en) | Image pickup optical lens | |
| CN111077648B (en) | Image pickup optical lens | |
| CN111458852B (en) | Image pickup optical lens | |
| CN111198433B (en) | Image pickup optical lens | |
| CN111142220A (en) | Image pickup optical lens | |
| CN110927932B (en) | Image pickup optical lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200429 Address after: No. 8, 2 floor, 85 Cavendish Science Park Avenue, Singapore Applicant after: Raytheon solutions Pte Ltd Address before: No. 8, 2 floor, 85 Cavendish Science Park Avenue, Singapore Applicant before: Raytheon Technology (Singapore) Co., Ltd |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |