Camera optical lens

Abstract

The present application discloses a camera optical lens. The camera optical lens including, in an order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The first lens is made of glass material, the second lens is made of plastic material, the third lens is made of plastic material, the fourth lens is made of plastic material, the fifth lens is made of plastic material, and the sixth lens is made of glass material. The camera optical lens further satisfies specific conditions.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority benefit of Chinese Patent Applications Ser. No. 201711365444.5 and Ser. No. 201711366875.3 filed on Dec. 18, 2017, the entire content of which is incorporated herein by reference.

FIELD OF THE PRESENT DISCLOSURE

The present disclosure relates to optical lens, in particular to a camera optical lens suitable for handheld devices such as smart phones and digital cameras and imaging devices.

DESCRIPTION OF RELATED ART

With the emergence of smart phones in recent years, the demand for miniature camera lens is increasing day by day, but the photosensitive devices of general camera lens are no other than Charge Coupled Device (CCD) or Complementary metal-Oxide Semiconductor Sensor (CMOS sensor), and as the progress of the semiconductor manufacturing technology makes the pixel size of the photosensitive devices shrink, coupled with the current development trend of electronic products being that their functions should be better and their shape should be thin and small, miniature camera lens with good imaging quality therefor has become a mainstream in the market. In order to obtain better imaging quality, the lens that is traditionally equipped in mobile phone cameras adopts a three-piece or four-piece lens structure. And, with the development of technology and the increase of the diverse demands of users, and under this circumstances that the pixel area of photosensitive devices is shrinking steadily and the requirement of the system for the imaging quality is improving constantly, the five-piece, six-piece and seven-piece lens structure gradually appear in lens design. There is an urgent need for ultra-thin wide-angle camera lenses which have good optical characteristics and the chromatic aberration of which is fully corrected.

BRIEF DESCRIPTION OF THE DRAWINGS

Many aspects of the exemplary embodiments can be better understood with reference to the following drawings. The components in the drawing are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present disclosure.

FIG. 1 is a schematic diagram of a camera optical lens in accordance with a first embodiment of the present invention;

FIG. 2 shows the longitudinal aberration of the camera optical lens shown in FIG. 1;

FIG. 3 shows the lateral color of the camera optical lens shown in FIG. 1;

FIG. 4 presents a schematic diagram of the field curvature and distortion of the camera optical lens shown in FIG. 1;

FIG. 5 is a schematic diagram of a camera optical lens in accordance with a second embodiment of the present invention;

FIG. 6 presents the longitudinal aberration of the camera optical lens shown in FIG. 5;

FIG. 7 presents the lateral color of the camera optical lens shown in FIG. 5;

FIG. 8 presents the field curvature and distortion of the camera optical lens shown in FIG. 5;

FIG. 9 is a schematic diagram of a camera optical lens in accordance with a third embodiment of the present invention;

FIG. 10 presents the longitudinal aberration of the camera optical lens shown in FIG. 9;

FIG. 11 presents the lateral color of the camera optical lens shown in FIG. 9;

FIG. 12 presents the field curvature and distortion of the camera optical lens shown in FIG. 9.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

The present disclosure will hereinafter be described in detail with reference to several exemplary embodiments. To make the technical problems to be solved, technical solutions and beneficial effects of the present disclosure more apparent, the present disclosure is described in further detail together with is the figure and the embodiments. It should be understood the specific embodiments described hereby is only to explain the disclosure, not intended to limit the disclosure.

(Embodiment 1)

As referring to FIG. 1, the present invention provides a camera optical lens 10. FIG. 1 shows the camera optical lens 10 of embodiment 1 of the present invention, the camera optical lens 10 comprises 6 lenses. Specifically, from the object side to the image side, the camera optical lens 10 comprises in sequence: an aperture 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. Optical element like optical filter GF can be arranged between the sixth lens L6 and the image surface Si. The first lens L1 is made of glass material, the second lens L2 is made of plastic material, the third lens L3 is made of plastic material, the fourth lens L4 is made of plastic material, the fifth lens L5 is made of plastic material, and the sixth lens L6 is made of glass material.

Here, the focal length of the whole camera optical lens 10 is defined as f, the focal length of the first lens is defined as f1. The camera optical lens further satisfies the following condition: 0.5≤f1/f≤10. Condition 0.5≤f1/f≤10 fixes the positive refractive power of the first lens L1. If the upper limit of the set value is exceeded, although it benefits the ultra-thin development of lenses, but the positive refractive power of the first lens L1 will be too strong, problem like aberration is difficult to be corrected, and it is also unfavorable for wide-angle development of lens. On the contrary, if the lower limit of the set value is exceeded, the positive refractive power of the first lens L1 becomes too weak, it is then difficult to develop ultra-thin lenses. Preferably, the following condition shall be satisfied, 1.22≤f1/f≤9.72.

The refractive index of the first lens L1 is defined as n1. Here the following condition should satisfied: 1.7≤n1≤2.2. This condition fixes the refractive index of the first lens L1, and refractive index within this range benefits the ultra-thin development of lenses, and it also benefits the correction of aberration. Preferably, the following condition shall be satisfied, 1.535≤n1≤1.611.

The refractive index of the sixth lens L6 is defined as n6. Here the following condition should satisfied: 1.7≤n6≤2.2. This condition fixes the refractive index of the sixth lens L6, and refractive index within this range benefits the ultra-thin development of lenses, and it also benefits the correction of aberration. Preferably, the following condition shall be satisfied, 1.535≤n6≤2.055.

In this embodiment, the first lens L1 has a positive refractive power with a convex object side surface relative to the proximal axis and a concave image side surface relative to the proximal axis.

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. The camera optical lens 10 further satisfies the following condition: −17.69≤(R1+R2)/(R1−R2)≤−1.62, which fixes the shape of the first lens L1, when the value is beyond this range, with the development into the direction of ultra-thin and wide-angle lenses, problem like aberration of the off-axis picture angle is difficult to be corrected. Preferably, the condition −11.06≤(R1+R2)/(R1−R2)≤−2.03 shall be satisfied.

The thickness on-axis of the first lens L1 is defined as d1. The following condition: 0.22≤d1≤1.01 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.35≤d1≤0.81 shall be satisfied.

In this embodiment, the second lens L2 has a positive refractive power with a convex object side surface and a convex image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focal length of the second lens L2 is f2. The following condition should be satisfied: 0.66≤f2/f≤2.93. When the condition is satisfied, the positive refractive power of the second lens L2 is controlled within reasonable scope, the spherical aberration caused by the first lens L1 which has positive refractive power and the field curvature of the system then can be reasonably and effectively balanced. Preferably, the condition 1.05≤f2/f≤2.35 should be satisfied.

The curvature radius of the object side surface of the second lens L2 is defined as R3, the curvature radius of the image side surface of the second lens L2 is defined as R4. The following condition should be satisfied: −0.75<(R3+R4)/(R3−R4)<−0.14, which fixes the shape of the second lens L2 and can effectively correct aberration of the camera optical lens. Preferably, the following condition shall be satisfied, −0.47≤(R3+R4)/(R3−R4)≤−0.18.

The thickness on-axis of the second lens L2 is defined as d3. The following condition: 0.30≤d3≤1.24 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.48≤d3≤0.99 shall be satisfied.

In this embodiment, the third lens L3 has a positive refractive power with a concave object side surface and a convex image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focal length of the third lens L3 is f3. The following condition should be satisfied: 0.93≤f3/f≤2.98, by which the field curvature of the system then can be reasonably and effectively balanced. Preferably, the condition 1.49≤f3/f≤2.39 should be satisfied.

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. The following condition should be satisfied: 1.28≤(R5+R6)/(R5−R6)≤4.51, which is beneficial for the shaping of the third lens L3, and bad shaping and stress generation due to extra large curvature of surface of the third lens L3 can be avoided. Preferably, the following condition shall be satisfied, 2.05≤(R5+R6)/(R5−R6)≤3.61.

The thickness on-axis of the third lens L3 is defined as d5. The following condition: 0.10≤d5≤0.38 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.16≤d5≤0.30 shall be satisfied.

In this embodiment, the fourth lens L4 has a negative refractive power with a concave object side surface and a convex image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focal length of the fourth lens L4 is f4. The following condition should be satisfied: −1.83≤f4/f≤−0.55, which can effectively reduce the sensitivity of lens group used in camera and further enhance the imaging quality. Preferably, the condition −1.14≤f4/f≤−0.69 should be satisfied.

The curvature radius of the object side surface of the fourth lens L4 is defined as R7, the curvature radius of the image side surface of the fourth lens L4 is defined as R8. The following condition should be satisfied: −3.08≤(R7+R8)/(R7−R8)≤−0.98, by which, with the development into the direction of ultra-thin and wide-angle lenses, problem like aberration of the off-axis picture angle is difficult to be corrected. Preferably, the following condition shall be satisfied, −1.93≤(R7+R8)/(R7−R8)≤−1.22.

The thickness on-axis of the fourth lens L4 is defined as d7. The following condition: 0.11≤d7≤0.37 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.18≤d7≤0.29 shall be satisfied.

In this embodiment, the fifth lens L5 has a positive refractive power with a convex object side surface and a convex image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focal length of the fifth lens L5 is f5. The following condition should be satisfied: 0.35≤f5/f≤1.09, which can effectively smooth the light angles of the camera and reduce the tolerance sensitivity. Preferably, the condition 0.56≤f5/f≤0.87 should be satisfied.

The curvature radius of the object side surface of the fifth lens L5 is defined as R9, the curvature radius of the image side surface of the fifth lens L5 is defined as R10. The following condition should be satisfied: 0.22≤(R9+R10)/(R9−R10)≤0.69, by which, the shape of the fifth lens L5 is fixed, further, with the development into the direction of ultra-thin and wide-angle lenses, problem like aberration of the off-axis picture angle is difficult to be corrected. Preferably, the following condition shall be satisfied, 0.35≤(R9+R10)/(R9−R10)≤0.55.

The thickness on-axis of the fifth lens L5 is defined as d9. The following condition: 0.27≤d9≤1.48 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.43≤d9≤1.18 shall be satisfied.

In this embodiment, the sixth lens L6 has a negative refractive power with a concave object side surface and a concave image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focal length of the sixth lens L6 is f6. The following condition should be satisfied: −1.20≤f6/f≤−0.27, which can effectively reduce the sensitivity of lens group used in camera and further enhance the imaging quality. Preferably, the condition −0.75≤f6/f≤−0.34 should be satisfied.

The curvature radius of the object side surface of the sixth lens L6 is defined as R11, the curvature radius of the image side surface of the sixth lens L6 is defined as R12. The following condition should be satisfied: −0.60≤(R11+R12)/(R11−R12)≤−0.05, by which, the shape of the sixth lens L6 is fixed , further, with the development into the direction of ultra-thin and wide-angle lenses, problem like aberration of the off-axis picture angle is difficult to be corrected. Preferably, the following condition shall be satisfied, −0.38≤(R11+R12)/(R11−R12)≤−0.06.

The thickness on-axis of the sixth lens L6 is defined as d11. The following condition: 0.18≤d11≤0.79 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.28≤d11≤0.64 shall be satisfied.

The focal length of the whole camera optical lens 10 is f, the combined focal length of the first lens L1 and the second lens L2 is f12. The following condition should be satisfied: 0.45≤f12/f≤1.77, which can effectively avoid the aberration and field curvature of the camera optical lens, and can suppress the rear focal length for realizing the ultra-thin lens. Preferably, the condition 0.73≤f12/f≤1.41 should be satisfied.

In this embodiment, the total optical length TTL of the camera optical lens 10 is less than or equal to 5.67 mm, it is beneficial for the realization of ultra-thin lenses. Preferably, the total optical length TTL of the camera optical lens 10 is less than or equal to 5.41 mm

In this embodiment, the aperture F number of the camera optical lens 10 is less than or equal to 1.85. A large aperture has better imaging performance.

Preferably, the aperture F number of the camera optical lens 10 is less than or equal to 1.82.

With such design, the total optical length TTL of the whole camera optical lens 10 can be made as short as possible, thus the miniaturization characteristics can be maintained.

In the following, an example will be used to describe the camera optical lens 10 of the present invention. The symbols recorded in each example are as follows. The unit of distance, radius and center thickness is mm

TTL: Optical length (the distance on-axis from the object side surface of the first lens L1 to the image surface).

Preferably, inflexion points and/or arrest points can also be arranged on the object side surface and/or image side surface of the lens, so that the demand for high quality imaging can be satisfied, the description below can be referred for specific implementable scheme.

The design information of the camera optical lens 10 in the first embodiment of the present invention is shown in the following, the unit of the focal length, distance, radius and center thickness is mm

The design information of the camera optical lens 10 in the first embodiment of the present invention is shown in the tables 1 and 2.

TABLE 1
	R	d	nd	νd
S1	∞	d0 =	−0.100
R1	3.021	d1 =	0.672	nd1	1.7093	ν1	60.54
R2	7.228	d2 =	0.044
R3	5.492	d3 =	0.618	nd2	1.5328	ν2	48.60
R4	−12.032	d4 =	0.064
R5	−4.804	d5 =	0.202	nd3	1.6060	ν3	25.30
R6	−2.406	d6 =	0.091
R7	−1.570	d7 =	0.245	nd4	1.6150	ν4	25.30
R8	−8.309	d8 =	0.104
R9	5.153	d9 =	0.975	nd5	1.5440	ν5	56.20
R10	−1.912	d10 =	0.831
R11	−2.691	d11 =	0.505	nd6	1.7093	ν6	47.27
R12	3.465	d12 =	0.362
R13	∞	d13 =	0.210	ndg	1.5168	νg	64.17
R14	∞	d14 =	0.230

Where:

In which, the meaning of the various symbols is as follows.

S1: Aperture;

R: The curvature radius of the optical surface, the central curvature radius in case of lens;

R1: The curvature radius of the object side surface of the first lens L1;

R2: The curvature radius of the image side surface of the first lens L1;

R3: The curvature radius of the object side surface of the second lens L2;

R4: The curvature radius of the image side surface of the second lens L2;

R5: The curvature radius of the object side surface of the third lens L3;

R6: The curvature radius of the image side surface of the third lens L3;

R7: The curvature radius of the object side surface of the fourth lens L4;

R8: The curvature radius of the image side surface of the fourth lens L4;

R9: The curvature radius of the object side surface of the fifth lens L5;

R10: The curvature radius of the image side surface of the fifth lens L5;

R11: The curvature radius of the object side surface of the sixth lens L6;

R12: The curvature radius of the image side surface of the sixth lens L6;

R13: The curvature radius of the object side surface of the optical filter GF;

R14: The curvature radius of the image side surface of the optical filter GF;

d: The thickness on-axis of the lens and the distance on-axis between the lens;

d0: The distance on-axis from aperture S1 to the object side surface of the first lens L1;

d1: The thickness on-axis of the first lens L1;

d2: The distance on-axis from the image side surface of the first lens L1 to the object side surface of the second lens L2;

d3: The thickness on-axis of the second lens L2;

d4: The distance on-axis from the image side surface of the second lens L2 to the object side surface of the third lens L3;

d5: The thickness on-axis of the third lens L3;

d6: The distance on-axis from the image side surface of the third lens L3 to the object side surface of the fourth lens L4;

d7: The thickness on-axis of the fourth lens L4;

d8: The distance on-axis from the image side surface of the fourth lens L4 to the object side surface of the fifth lens L5;

d9: The thickness on-axis of the fifth lens L5;

d10: The distance on-axis from the image side surface of the fifth lens L5 to the object side surface of the sixth lens L6;

d11: The thickness on-axis of the sixth lens L6;

d12: The distance on-axis from the image side surface of the sixth lens L6 to the object side surface of the optical filter GF;

d13: The thickness on-axis of the optical filter GF;

d14: The distance on-axis from the image side surface to the image surface of the optical filter GF;

nd: The refractive power index of the d line;

nd1: The refractive index of the d line of the first lens L1;

nd2: The refractive index of the d line of the second lens L2;

nd3: The refractive index of the d line of the third lens L3;

nd4: The refractive index of the d line of the fourth lens L4;

nd5: The refractive index of the d line of the fifth lens L5;

nd6: The refractive index of the d line of the sixth lens L6;

ndg: The refractive power index of the d line of the optical filter GF;

vd: The abbe number;

v1: The abbe number of the first lens L1;

v2: The abbe number of the second lens L2;

v3: The abbe number of the third lens L3;

v4: The abbe number of the fourth lens L4;

v5: The abbe number of the fifth lens L5;

v6: The abbe number of the sixth lens L6;

vg: The abbe number of the optical filter GF.

Table 2 shows the aspherical surface data of the camera optical lens 10 in the embodiment 1 of the present invention.

TABLE 2
	Conic Index	Aspherical Surface Index
	k	A4	A6	A8	A10	A12	A14	A16
R1	1.7257E−01	−0.030735644	−0.005619301	−0.000619316	−0.021584533	0.028235206	−0.017705134	0.002393684
R2	2.9912E+01	−0.18690494	0.064554534	−0.031583067	0.008182361	−0.00311694	−0.002396027	0.000626802
R3	1.7145E+01	−0.19553621	0.041397156	0.01920738	−0.020556322	0.010813342	−0.011141167	0.000936446
R4	−2.4045E+02	−0.10037229	−0.16883101	0.16995155	−0.050531151	0.003148577	−0.00122285	0.000149759
R5	9.3005E+00	−0.065348159	−0.17338495	0.13656368	0.003645857	−0.009445491	−0.003245156	0.001040575
R6	−1.3560E+00	−0.031562267	−0.083681277	0.085526821	−0.017703001	0.002475847	−0.002232878	0.000295524
R7	−1.7553E−01	−0.015067661	0.057419735	0.027151318	−0.013902684	−0.005427797	0.002386893	1.71E−05
R8	−7.0861E+01	−0.074331372	0.080623933	−0.016959157	−0.000515856	0.001093916	−0.000139093	2.96E−06
R9	8.7989E+00	−0.057667228	0.020940008	−0.022671119	0.006470794	−0.001055532	1.65E−05	0.000111783
R10	−3.2037E−02	0.098077175	−0.030873507	0.002409263	−1.26E−05	−0.00020814	0.000105174	2.94E−05
R11	−3.4893E−03	0.029500726	−0.055262142	0.024238434	−0.007306756	0.000938939	0.000156846	−3.62E−05
R12	−7.3125E−01	−0.04805778	0.006555123	−0.000431115	−4.38E−05	1.14E−05	−7.94E−07	1.54E−08

Among them, K is a conic index, A4, A6, A8, A10, A12, A14, A16 are aspheric surface indexes.

IH: Image heighty=(x²/R)/[1+{1−(k+1)(x²/R²)}^1/2]+A4x⁴+A6x⁶+A8x⁸+A10x¹⁰+A12x¹²+A14x¹⁴+A16x¹⁶  (1)

For convenience, the aspheric surface of each lens surface uses the aspheric surfaces shown in the above condition (1). However, the present invention is not limited to the aspherical polynomials form shown in the condition (1).

Table 3 and table 4 show the inflexion points and the arrest point design data of the camera optical lens 10 lens in embodiment 1 of the present invention. In which, P1R1 and P1R2 represent respectively the object side surface and image side surface of the first lens L1, P2R1 and P2R2 represent respectively the object side surface and image side surface of the second lens L2, P3R1 and P3R2 represent respectively the object side surface and image side surface of the third lens L3, P4R1 and P4R2 represent respectively the object side surface and image side surface of the fourth lens L4, P5R1 and P5R2 represent respectively the object side surface and image side surface of the fifth lens L5, P6R1 and P6R2 represent respectively the object side surface and image side surface of the sixth lens L6. The data in the column named “inflexion point position” are the vertical distances from the inflexion points arranged on each lens surface to the optic axis of the camera optical lens 10. The data in the column named “arrest point position” are the vertical distances from the arrest points arranged on each lens surface to the optic axis of the camera optical lens 10.

	TABLE 3
	Inflexion	Inflexion	Inflexion	Inflexion	Inflexion
	point	point	point	point	point
	number	position 1	position 2	position 3	position 4
P1R1	1	0.775
P1R2	1	0.265
P2R1	1	0.305
P2R2	0
P3R1	2	1.015	1.325
P3R2	2	1.025	1.295
P4R1	3	0.865	1.275	1.365
P4R2	1	0.735
P5R1	2	0.645	1.375
P5R2	1	1.485
P6R1	1	1.685
P6R2	1	0.805

	TABLE 4
	Arrest point	Arrest point	Arrest point
	number	position 1	position 2
	P1R1	1	1.075
	P1R2	1	0.465
	P2R1	1	0.535
	P2R2	0
	P3R1	0
	P3R2	0
	P4R1	0
	P4R2	1	1.045
	P5R1	1	1.025
	P5R2	0
	P6R1	0
	P6R2	1	1.595

FIG. 2 and FIG. 3 show the longitudinal aberration and lateral color schematic diagrams after light with a wavelength of 486 nm, 588 nm and 656 nm passes the camera optical lens 10 in the first embodiment. FIG. 4 shows the field curvature and distortion schematic diagrams after light with a wavelength of 588 nm passes the camera optical lens 10 in the first embodiment, the field curvature S in FIG. 4 is a field curvature in the sagittal direction, T is a field curvature in the meridian direction.

Table 13 shows the various values of the embodiments 1, 2, 3 and the values corresponding with the parameters which are already specified in the conditions.

As shown in Table 13, the first embodiment satisfies the various conditions.

In this embodiment, the pupil entering diameter of the camera optical lens is 2.153 mm, the full vision field image height is 3.512 mm, the vision field angle in the diagonal direction is 84.37°, it has wide-angle and is ultra-thin, its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

(Embodiment 2)

Embodiment 2 is basically the same as embodiment 1, the meaning of its symbols is the same as that of embodiment 1, in the following, only the differences are described.

Table 5 and table 6 show the design data of the camera optical lens 20 in embodiment 2 of the present invention.

TABLE 5
	R	d	nd	νd
S1	∞	d0 =	−0.061
R1	3.274	d1 =	0.621	nd1	1.9809	ν1	40.00
R2	7.159	d2 =	0.073
R3	5.509	d3 =	0.602	nd2	1.5085	ν2	48.60
R4	−10.989	d4 =	0.068
R5	−4.816	d5 =	0.253	nd3	1.6107	ν3	25.30
R6	−2.349	d6 =	0.078
R7	−1.588	d7 =	0.225	nd4	1.6150	ν4	25.30
R8	−7.501	d8 =	0.102
R9	4.959	d9 =	0.987	nd5	1.5440	ν5	56.20
R10	−1.962	d10 =	0.771
R11	−2.557	d11 =	0.530	nd6	2.0552	ν6	42.03
R12	4.764913	d12 =	0.264
R13	∞	d13 =	0.210	ndg	1.5168	νg	64.17
R14	∞	d14 =	0.131

Table 6 shows the aspherical surface data of each lens of the camera optical lens 20 in embodiment 2 of the present invention.

TABLE 6
	Conic Index	Aspherical Surface Index
	k	A4	A6	A8	A10	A12	A14	A16
R1	−2.1345E+00	−0.041058043	−0.005524594	−0.000544446	−0.021787246	0.028019981	−0.017818745	0.002388546
R2	2.9621E+01	−0.18072823	0.064342608	−0.031418256	0.008568291	−0.002814392	−0.002253499	0.000649502
R3	1.7186E+01	−0.19695018	0.049433501	0.02279364	−0.019467865	0.011065387	−0.011049152	0.001037305
R4	−1.6746E+02	−0.10193339	−0.16975251	0.16985703	−0.050468424	0.003125915	−0.001287977	8.85E−05
R5	9.3401E+00	−0.067458677	−0.17474738	0.13587681	0.00345611	−0.009492077	−0.003249709	0.001043515
R6	−1.5331E+00	−0.030137019	−0.08399449	0.085327535	−0.017826828	0.002423433	−0.002256524	0.000285832
R7	−1.6178E−01	−0.016318377	0.056384275	0.026822757	−0.013960236	−0.00543181	0.00239095	2.15E−05
R8	−1.0048E+02	−0.071810639	0.083701635	−0.01574063	−0.000384542	0.001000907	−0.000188271	−9.63E−06
R9	9.2840E+00	−0.0560967	0.022213862	−0.022312498	0.005806983	−0.001299752	−1.20E−05	0.000142311
R10	−5.3009E−02	0.10100155	−0.030870657	0.002014973	−0.000366119	−0.000312524	0.000110711	3.82E−05
R11	−9.7186E−02	0.030105912	−0.054351595	0.024520795	−0.007243453	0.00093605	0.000153552	−3.68E−05
R12	−8.8272E−01	−0.048415091	0.006558382	−0.000425544	−4.27E−05	1.15E−05	−7.79E−07	1.08E−08

Table 7 and table 8 show the inflexion points and the arrest point design data of the camera optical lens 20 lens in embodiment 2 of the present invention.

	TABLE 7
	Inflexion	Inflexion	Inflexion	Inflexion	Inflexion
	point	point	point	point	point
	number	position 1	position 2	position 3	position 4
P1R1	1	0.665
P1R2	1	0.275
P2R1	1	0.305
P2R2	0
P3R1	2	1.035	1.305
P3R2	2	1.025	1.265
P4R1	2	0.875	1.245
P4R2	1	0.685
P5R1	2	0.695	1.375
P5R2	1	1.525
P6R1	2	1.645	1.895
P6R2	1	0.655

	TABLE 8
	Arrest point	Arrest point	Arrest point
	number	position 1	position 2
	P1R1	1	0.995
	P1R2	1	0.485
	P2R1	1	0.535
	P2R2	0
	P3R1	0
	P3R2	0
	P4R1	0
	P4R2	1	0.985
	P5R1	2	1.075	1.465
	P5R2	0
	P6R1	0
	P6R2	1	1.205

FIG. 6 and FIG. 7 show the longitudinal aberration and lateral color schematic diagrams after light with a wavelength of 486 nm, 588 nm and 656 nm passes the camera optical lens 20 in the second embodiment. FIG. 8 shows the field curvature and distortion schematic diagrams after light with a wavelength of 588 nm passes the camera optical lens 20 in the second embodiment.

As shown in Table 13, the second embodiment satisfies the various conditions.

In this embodiment, the pupil entering diameter of the camera optical lens is 2.075 mm, the full vision field image height is 3.512 mm, the vision field angle in the diagonal direction is 86.47°, it has wide-angle and is ultra-thin, its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

(Embodiment 3)

Embodiment 3 is basically the same as embodiment 1, the meaning of its symbols is the same as that of embodiment 1, in the following, only the differences are described.

Table 9 and table 10 show the design data of the camera optical lens 30 in embodiment 3 of the present invention.

TABLE 9
	R	d	nd	νd
S1	∞	d0 =	−0.021
R1	4.930	d1 =	0.438	nd1	1.7049	ν1	67.25
R2	6.186	d2 =	0.054
R3	5.125	d3 =	0.827	nd2	1.6523	ν2	48.60
R4	−7.921	d4 =	0.051
R5	−5.540	d5 =	0.237	nd3	1.6052	ν3	25.30
R6	−2.428	d6 =	0.164
R7	−1.621	d7 =	0.244	nd4	1.6150	ν4	25.30
R8	−7.624	d8 =	0.177
R9	5.029	d9 =	0.535	nd5	1.5440	ν5	56.20
R10	−1.910	d10 =	1.013
R11	−3.045	d11 =	0.353	nd6	1.7167	ν6	40.88
R12	3.501409	d12 =	0.448
R13	∞	d13 =	0.210	ndg	1.5168	νg	64.17
R14	∞	d14 =	0.3152018

Table 10 shows the aspherical surface data of each lens of the camera optical lens 30 in embodiment 3 of the present invention.

TABLE 10
	Conic Index	Aspherical Surface Index
	k	A4	A6	A8	A10	A12	A14	A16
R1	−1.6296E+00	−0.027620135	−0.011957216	−0.001987303	−0.020651503	0.029052934	−0.017417944	0.002786999
R2	2.5935E+01	−0.19458243	0.066257207	−0.03092062	0.007795164	−0.004207086	−0.003667191	−0.000512928
R3	1.7203E+01	−0.19089987	0.029222617	0.01175206	−0.023555804	0.010108492	−0.01116746	0.000924191
R4	−9.0732E+01	−0.092754989	−0.1668011	0.16924432	−0.051251925	0.002971418	−0.00096521	0.000429693
R5	7.5289E+00	−0.05618034	−0.17146437	0.13564289	0.002941458	−0.009630202	−0.003190242	0.00115467
R6	−2.5501E+00	−0.023275951	−0.080577852	0.087654214	−0.016766202	0.002706728	−0.002107818	0.000379195
R7	−2.4586E−01	−0.014549747	0.062318298	0.029518368	−0.013081049	−0.005301662	0.002290247	−0.000105239
R8	−8.1704E+00	−0.085518031	0.076856874	−0.017685797	−0.001344717	0.000748762	−0.000217988	1.11E−05
R9	7.5771E+00	−0.046583585	0.02457282	−0.023008503	0.006374929	−0.001063895	−1.92E−05	5.67E−05
R10	−3.7831E−01	0.11592456	−0.034993261	0.003478448	0.000396321	−0.000138113	0.000108078	2.43E−05
R11	1.7716E−01	0.028619916	−0.052462016	0.024841129	−0.007271248	0.000916006	0.000146904	−3.81E−05
R12	−6.8750E−01	−0.048159771	0.006637598	−0.000421513	−4.31E−05	1.14E−05	−8.10E−07	1.25E−08

Table 11 and table 12 show the inflexion points and the arrest point design data of the camera optical lens 30 lens in embodiment 3 of the present invention.

	TABLE 11
	Inflexion	Inflexion	Inflexion	Inflexion	Inflexion
	point	point	point	point	point
	number	position 1	position 2	position 3	position 4
P1R1	1	0.625
P1R2	2	0.285	1.155
P2R1	2	0.315	1.165
P2R2	0
P3R1	2	0.985	1.425
P3R2	1	0.935
P4R1	1	0.805
P4R2	2	0.895	1.215
P5R1	2	0.775	1.525
P5R2	1	1.265
P6R1	0
P6R2	1	0.805

	TABLE 12
	Arrest point	Arrest point	Arrest point
	number	position 1	position 2
	P1R1	1	0.945
	P1R2	1	0.505
	P2R1	1	0.555
	P2R2	0
	P3R1	1	1.295
	P3R2	1	1.245
	P4R1	1	1.325
	P4R2	0
	P5R1	1	1.155
	P5R2	1	1.525
	P6R1	0
	P6R2	1	1.605

FIG. 10 and FIG. 11 show the longitudinal aberration and lateral color schematic diagrams after light with a wavelength of 486 nm, 588 nm and 656 nm passes the camera optical lens 30 in the third embodiment. FIG. 12 shows the field curvature and distortion schematic diagrams after light with a wavelength of 588 nm passes the camera optical lens 30 in the third embodiment.

As shown in Table 13, the third embodiment satisfies the various conditions.

In this embodiment, the pupil entering diameter of the camera optical lens is 2.065 mm, the full vision field image height is 3.512 mm, the vision field angle in the diagonal direction is 86.75°, it has wide-angle and is ultra-thin, its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

	TABLE 13
	Embodi-	Embodi-	Embodi-
	ment 1	ment 2	ment 3
f	3.875	3.735	3.717
f1	6.864	5.699	30.102
f2	7.165	7.306	4.893
f3	7.709	7.225	6.944
f4	−3.193	−3.325	−3.401
f5	2.694	2.721	2.616
f6	−2.065	−1.521	−2.222
f12	3.719	3.396	4.379
(R1 + R2)/(R1 − R2)	−2.436	−2.685	−8.847
(R3 + R4)/(R3 − R4)	−0.373	−0.332	−0.214
(R5 + R6)/(R5 − R6)	3.007	2.904	2.561
(R7 + R8)/(R7 − R8)	−1.466	−1.537	−1.540
(R9 + R10)/(R9 − R10)	0.459	0.433	0.449
(R11 + R12)/(R11 − R12)	−0.126	−0.302	−0.070
f1/f	1.771	1.526	8.098
f2/f	1.849	1.956	1.316
f3/f	1.989	1.934	1.868
f4/f	−0.824	−0.890	−0.915
f5/f	0.695	0.728	0.704
f6/f	−0.533	−0.407	−0.598
f12/f	0.960	0.909	1.178
d1	0.672	0.621	0.438
d3	0.618	0.602	0.827
d5	0.202	0.253	0.237
d7	0.245	0.225	0.244
d9	0.975	0.987	0.535
d11	0.505	0.530	0.353
Fno	1.800	1.800	1.800
TTL	5.153	4.914	5.064
d1/TTL	0.130	0.126	0.086
d3/TTL	0.120	0.122	0.163
d5/TTL	0.039	0.052	0.047
d7/TTL	0.048	0.046	0.048
d9/TTL	0.189	0.201	0.106
d11/TTL	0.098	0.108	0.070
n1	1.7093	1.9809	1.5346
n2	1.5328	1.5085	1.6889
n3	1.6060	1.6107	1.5346
n4	1.6150	1.6150	1.6355
n5	1.5440	1.5440	1.7312
n6	1.7093	2.0552	1.5346
v1	60.5380	40.0000	56.1000
v2	48.6000	48.6000	31.0778
v3	25.3000	25.3000	56.1000
v4	25.3000	25.3000	24.0000
v5	56.2000	56.2000	24.0000
v6	47.2700	42.0300	56.1000

It is to be understood, however, that even though numerous characteristics and advantages of the present exemplary embodiments have been set forth in the foregoing description, together with details of the structures and functions of the embodiments, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms where the appended claims are expressed.

Claims

1. A camera optical lens consisting of, from an object side to an image side in sequence: a positive first lens, a positive second lens, a positive third lens, a negative fourth lens, a positive fifth lens, and a negative sixth lens; wherein the camera optical lens further satisfies the following conditions: 0.5≤f1/f≤10;1.7≤n1≤2.2;1.7≤n6≤2.2;wheref: the focal length of the camera optical lens;f1: the focal length of the first lens;n1: the refractive power of the first lens;n6: the refractive power of the sixth lens.

2. The camera optical lens as described in claim 1, wherein the first lens is made of glass material, the second lens is made of plastic material, the third lens is made of plastic material, the fourth lens is made of plastic material, the fifth lens is made of plastic material, the sixth lens is made of glass material.

3. The camera optical lens as described in claim 1, wherein first lens has a positive refractive power with a convex object side surface and a concave image side surface; the camera optical lens further satisfies the following conditions: −17.69≤(R1+R2)/(R1−R2)≤−1.62;0.30 mm≤d1≤0.95 mm; whereR1: curvature radius of object side surface of the first lens;R2: curvature radius of image side surface of the first lens;d1: thickness on-axis of the first lens.

4. The camera optical lens as described in claim 1, wherein the second lens has a convex object side surface and a convex image side surface; the camera optical lens further satisfies the following conditions: 0.66≤f2/f≤2.93;−0.75≤(R3+R4)/(R3−R4)≤−0.14;0.30 mm≤d3≤1.24 mm; wheref: the focal length of the camera optical lens;f2: focal length of the second lens;R3: curvature radius of the object side surface of the second lens;R4: curvature radius of the image side surface of the second lens;d3: thickness on-axis of the second lens.

5. The camera optical lens as described in claim 1, wherein the third lens has a concave object side surface and a convex image side surface; the camera optical lens further satisfies the following conditions: 0.93≤f3/f≤2.98;1.28≤(R5+R6)/(R5−R6)≤4.51;0.10 mm≤d5≤0.38 mm; wheref:focal length of the camera optical lens;f3: focal length of the third lens;R5: curvature radius of the object side surface of the third lens;R6: curvature radius of the image side surface of the third lens;d5: thickness on-axis of the third lens.

6. The camera optical lens as described in claim 1, wherein the fourth lens has a negative refractive power with a concave object side surface and a convex image side surface; the camera optical lens further satisfies the following conditions: −1.83≤f4/f≤−0.55;−3.08≤(R7+R8)/(R7−R8)≤−0.98;0.11 mm≤d7≤0.37 mm; wheref: the focal length of the camera optical lens;f4: focal length of the fourth lens;R7: curvature radius of the object side surface of the fourth lens;R8: curvature radius of the image side surface of the fourth lens;d7: the thickness on-axis of the fourth lens.

7. The camera optical lens as described in claim 1, wherein the fifth lens has a positive refractive power with a convex object side surface and a convex image side surface; the camera optical lens further satisfies the following conditions: 0.35≤f5/f≤1.09;0.22≤(R9+R10)/(R9−R10)≤0.69;0.27 mm≤d9≤1.48 mm; wheref: the focal length of the camera optical lens;f5: focal length of the fifth lens;R9: curvature radius of the object side surface of the fifth lens;R10: curvature radius of the image side surface of the fifth lens;d9:-thickness on-axis of the fifth lens.

8. The camera optical lens as described in claim 1, wherein the sixth lens has a negative refractive power with a concave object side surface and a concave image side surface; the camera optical lens further satisfies the following conditions: −1.20≤f6/f≤−0.27;−0.60≤(R11+R12)/(R11−R12)≤−0.05;0.18 mm≤d11≤0.79 mm; wheref: the focal length of the camera optical lens;f6: focal length of the sixth lens;R11: curvature radius of the object side surface of the sixth lens;R12: curvature radius of the image side surface of the sixth lens;d11: thickness on-axis of the sixth lens.

9. The camera optical lens as described in claim 1 further satisfying the following condition: 0.45≤f12/f≤1.77; wheref12: combined focal length of the first lens and the second lens;f: the focal length of the camera optical lens.

10. The camera optical lens as described in claim 1, wherein a total optical length TTL of the camera optical lens being an on-axis distance from the object-side surface of the first lens to an image plane is less than or equal to 5.67 mm.

11. The camera optical lens as described in claim 1, wherein the aperture F number of the camera optical lens is less than or equal to 1.85.