CN207764462U - Camera lenses and electronic devices - Google Patents

Abstract

The utility model discloses a camera lens and an electronic device. The imaging lens includes a plurality of refraction lenses and an infrared cut filter sequentially arranged along the optical axis of the imaging lens. At least two of the plurality of lenses have positive optical power and at least one of the plurality of lenses has negative optical power. The camera lens satisfies the conditional formula: 0.75≤TTL/F≤1.25; wherein, F is the effective focal length of the camera lens, and TTL is the axial distance from the outermost object side of the camera lens to the imaging surface of the camera lens. Through the above design, the imaging lens of the embodiment of the present invention has the advantages of high resolution and ultra-thin shape, and can be used as a telephoto lens.

Description

Camera lenses and electronic devices

technical field

The utility model relates to optical imaging technology, in particular to a camera lens and an electronic device.

Background technique

The emergence of small mobile devices such as smartphones and tablets has led to an increasing demand for high-resolution, thinner cameras for integration in these devices. However, due to limitations in conventional camera technology, small cameras typically have lower resolution or image quality than can be achieved with larger cameras. If you want a small camera to achieve high resolution, you need to use a photosensitive element with a small pixel size and an ultra-thin, high-resolution imaging lens system. Technological advances have reduced the pixel size of photosensitive elements, but the demand for ultra-thin, high-resolution imaging lens systems continues to increase.

Utility model content

The embodiment of the utility model provides a camera lens and an electronic device.

The camera lens according to the embodiment of the present utility model includes a plurality of refraction lenses and infrared cut-off filters arranged sequentially along the optical axis of the camera lens, at least two of the plurality of lenses have positive refractive power, and at least two At least one of the lenses has a negative power, and the camera lens satisfies the conditional formula:

0.75≤TTL/F≤1.25;

Wherein, F is the effective focal length of the imaging lens, and TTL is the axial distance from the outermost object side surface of the imaging lens to the imaging plane of the imaging lens.

Through the above design, the imaging lens of the embodiment of the present invention has the advantages of high resolution and ultra-thin shape, and can be used as a telephoto lens.

In some embodiments, a plurality of said lenses include in order along the optical axis from the object side to the image side:

a first lens having positive optical power;

a second lens having positive optical power;

a third lens having negative optical power;

a fourth lens having positive optical power; and

A fifth lens with negative optical power.

In the imaging lens of the embodiment of the utility model, due to the mixed arrangement of multiple lenses with positive and negative optical powers, the requirements of the imaging lens for high resolution and ultra-thinness are met, and the imaging lens can be guaranteed to have better image quality.

In some embodiments, the camera lens satisfies the conditional formula:

-2.7≤f5/F≤-0.2;

Wherein, f5 is the focal length of the fifth lens.

Satisfying the above conditional formula makes the fifth lens have a more suitable optical power to match the configuration of the overall optical power of the camera lens, and is beneficial to correct the aberrations and astigmatism produced by the first lens to the fourth lens, and improve the imaging performance. The resolution of the lens.

In some embodiments, a plurality of said lenses include in order along the optical axis from the object side to the image side:

a first lens having positive optical power;

a second lens having positive optical power;

a third lens having negative optical power;

a fourth lens having negative optical power;

a fifth lens having positive optical power; and

A sixth lens with negative optical power.

In the imaging lens of the embodiment of the utility model, due to the mixed arrangement of multiple lenses with positive and negative optical powers, the requirements of the imaging lens for high resolution and ultra-thinness are met, and the imaging lens can be guaranteed to have better image quality.

In some embodiments, the camera lens satisfies the conditional formula:

-2.7≤f6/F≤-0.2;

Wherein, f6 is the focal length of the sixth lens.

Satisfying the above conditional formula makes the sixth lens have a more suitable optical power to match the configuration of the overall optical power of the camera lens, and is conducive to correcting the aberrations and astigmatism produced by the first lens to the fifth lens, and improving the imaging performance. The resolution of the lens.

In some embodiments, the camera lens satisfies the conditional formula:

2.0≤FNO≤10;

Wherein, FNO is the focal ratio of the camera lens.

The imaging lens of the embodiment of the utility model can adjust the focal ratio within the range of 2.0 to 10.0, which can make the aberrations well corrected and further meet the requirement of high imaging quality.

In some embodiments, the camera lens satisfies the conditional formula:

0.3≤f1/F≤2.0;

Wherein, f1 is the focal length of the first lens.

Satisfying the above conditional formula, by rationally allocating the optical power of the first lens, it is beneficial to shorten the optical path of the imaging lens, thereby reducing the total length of the imaging lens, and realizing the ultra-thinning of the imaging lens.

In some embodiments, the camera lens satisfies the conditional formula:

-0.9≤f3/F≤-0.2;

Wherein, f3 is the focal length of the third lens.

Satisfying the above conditional formula makes the third lens have a more suitable optical power to match the configuration of the overall optical power of the camera lens, so that the sensitivity is lower, and it is beneficial to correct the aberrations produced by the first lens and the second lens .

The electronic device of the embodiment of the utility model includes:

image sensor; and

The camera lens according to any one of the above embodiments, wherein the camera lens is aligned with the image sensor.

Through the above design, the imaging lens of the electronic device according to the embodiment of the present invention has the advantages of high resolution and ultra-thin shape, and can be used as a telephoto lens.

In some embodiments, the electronic device satisfies the conditional formula:

1.5≤TTL/IMA≤3.1;

Wherein, IMA is the diagonal distance of the effective image sensing area of the image sensor.

When TTL/IMA<1.5, it is difficult to correct various aberrations, especially field curvature and distortion aberration; when TTL/IMA>3.1, the total length of the camera lens is too long, resulting in the overall size of the camera lens. If the conditional expression above is satisfied, various aberrations can be better corrected, and the ultra-thinning of the imaging lens can be realized.

Additional aspects and advantages of embodiments of the invention will be set forth in part in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present utility model will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic structural view of a camera lens according to a first embodiment of the present invention;

Fig. 2 is a schematic structural view of a camera lens according to a second embodiment of the present invention;

3 is a schematic structural view of a camera lens according to a third embodiment of the present invention;

4 is a schematic structural view of a camera lens according to a fourth embodiment of the present invention;

Fig. 5 is a schematic structural view of a camera lens according to a fifth embodiment of the present invention;

Fig. 6 is the aberration figure (mm) of photographing lens among Fig. 1;

Fig. 7 is the aberration figure (mm) of camera lens among Fig. 2;

Fig. 8 is the aberration figure (mm) of camera lens among Fig. 3;

Fig. 9 is the aberration figure (mm) of camera lens among Fig. 4;

Fig. 10 is the aberration figure (mm) of photographing lens among Fig. 5;

FIG. 11 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, but should not be construed as limiting the present utility model.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", Orientation indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. Or the positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be configured in a specific orientation, and operation, and therefore cannot be construed as a limitation of the utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of said features. In the description of the present utility model, "plurality" means two or more, unless otherwise specifically defined.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection, electrical connection or mutual communication; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the mutual communication of two components role relationship. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "below" a second feature may include direct contact between the first and second features, and may also include the first and second features being in direct contact with each other. The features are not in direct contact but through another feature between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "below" and "under" the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is less horizontal than the second feature.

The disclosure below provides many different implementations or examples for realizing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the utility model. Furthermore, the present disclosure may repeat reference numerals and/or reference letters in different instances, such repetition is for simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, various specific process and material examples are provided herein, but one of ordinary skill in the art may recognize the use of other processes and/or the use of other materials.

Please refer to FIGS. 1 to 5 together. The camera lens 10 includes a plurality of refraction lenses and an infrared cut filter L7 sequentially arranged along the optical axis of the camera lens 10 . At least two of the plurality of lenses have positive optical power and at least one of the plurality of lenses has negative optical power. The camera lens 10 satisfies the conditional formula:

0.75≤TTL/F≤1.25;

Wherein, F is the effective focal length of the imaging lens 10 , and TTL is the axial distance from the outermost object side surface of the imaging lens 10 to the imaging plane S15 of the imaging lens 10 .

That is to say, TTL/F can be any value within the range of [0.75, 1.25], for example, the value can be 0.75, 0.8, 0.85, 0.9, 0.95, 1, 1.05, 1.1, 1.15, 1.2, 1.25, etc. .

Through the above design, the camera lens 10 of the embodiment of the present invention has the advantages of high resolution and ultra-thin shape, and can be used as a telephoto lens.

Please refer to Fig. 1 and Fig. 2, in some embodiments, a plurality of lenses include in order from the object side to the image side along the optical axis: a first lens L1 with positive refractive power, a second lens with positive refractive power L2, a third lens L3 with negative power, a fourth lens L4 with positive power, and a fifth lens L5 with negative power.

The first lens L1 has an object side S1 and an image side S2, the second lens L2 has an object side S3 and an image side S4, the third lens L3 has an object side S5 and an image side S6, and the fourth lens L4 has an object side S7 and an image side S8, the fifth lens L5 has an object side S9 and an image side S10. In this embodiment, the outermost object side surface of the imaging lens 10 is the object side surface S1 of the first lens L1 .

In the imaging lens 10 of the embodiment of the utility model, due to the mixed arrangement of a plurality of lenses with positive and negative refractive powers, the requirements of the imaging lens 10 for high resolution and ultra-thinness are met, and the imaging lens 10 can be ensured. It has better image quality.

Referring to FIG. 1 and FIG. 2, in some embodiments, the imaging lens 10 further includes an aperture stop STO, and the aperture stop STO can be arranged on the surface of any lens, or before the first lens L1, or It is arranged between any two lenses, or between the fifth lens L5 and the infrared cut filter L7. For example, in FIG. 1 , the aperture stop STO is disposed on the object side S1 of the first lens L1 . In FIG. 2, the aperture stop STO is disposed on the image side S6 of the third lens L3.

When the imaging lens 10 is used for imaging, the light emitted or reflected by the object OBJ enters the imaging lens 10 from the object side, and passes through the first lens L1, the second lens L2, the third lens L3, and the fourth lens L4 in sequence. , the fifth lens L5, and the infrared cut filter L7 having the object side S13 and the image side S14, finally converge on the imaging surface S15.

Please refer to Fig. 1 and Fig. 2, in some embodiments, a plurality of lenses include in order from the object side to the image side along the optical axis: a first lens L1 with positive refractive power, a second lens with positive refractive power L2, a third lens L3 with negative power, a fourth lens L4 with positive power, and a fifth lens L5 with negative power. The camera lens 10 satisfies the conditional formula:

-2.7≤f5/F≤-0.2;

Wherein, f5 is the focal length of the fifth lens L5.

That is to say, f5/F can be any value within the range of [-2.7, -0.2], for example, the value can be -2.7, -2.5, -2.3, -2.1, -1.9, -1.7, -1.5 , -1.3, -1.1, -0.9, -0.7, -0.5, -0.3, -0.2, etc.

Satisfying the above conditional formula makes the fifth lens L5 have a relatively suitable refractive power to match the configuration of the overall refractive power of the imaging lens 10, and is conducive to correcting the aberrations and images generated by the first lens L1 to the fourth lens L4. Dispersion improves the resolution of the camera lens 10.

Please refer to FIG. 3 to FIG. 5 , in some embodiments, the plurality of lenses sequentially include from the object side to the image side along the optical axis: a first lens L1 with positive refractive power, a second lens with positive refractive power L2, a third lens L3 with negative power, a fourth lens L4 with negative power, a fifth lens L5 with positive power, and a sixth lens L6 with negative power.

The first lens L1 has an object side S1 and an image side S2, the second lens L2 has an object side S3 and an image side S4, the third lens L3 has an object side S5 and an image side S6, and the fourth lens L4 has an object side S7 and an image side S8, the fifth lens L5 has an object side S9 and an image side S10, and the sixth lens L6 has an object side S11 and an image side S12. In this embodiment, the outermost object side surface of the imaging lens 10 is the object side surface S1 of the first lens L1 .

In the imaging lens 10 of the embodiment of the utility model, due to the mixed arrangement of a plurality of lenses with positive and negative refractive powers, the requirements of the imaging lens 10 for high resolution and ultra-thinness are met, and the imaging lens 10 can be ensured. It has better image quality.

Referring to FIG. 3 to FIG. 5 , in some embodiments, the camera lens 10 further includes an aperture stop STO. The aperture stop STO can be set on the surface of any lens, or before the first lens L1, or between any two lenses, or between the sixth lens L6 and the infrared cut filter L7 . For example, in FIGS. 3 and 4 , the aperture stop STO is disposed on the object side S1 of the first lens L1 . In FIG. 5, the aperture stop STO is disposed on the object side S3 of the second lens L2.

When the imaging lens 10 is used for imaging, the light emitted or reflected by the object OBJ enters the imaging lens 10 from the object side, and passes through the first lens L1, the second lens L2, the third lens L3, and the fourth lens L4 in sequence. , the fifth lens L5, the sixth lens L6, and the infrared cut filter L7 having the object side S13 and the image side S14, finally converge on the imaging surface S15.

Please refer to FIG. 3 to FIG. 5 , in some embodiments, the plurality of lenses sequentially include from the object side to the image side along the optical axis: a first lens L1 with positive refractive power, a second lens with positive refractive power L2, a third lens L3 with negative power, a fourth lens L4 with negative power, a fifth lens L5 with positive power, and a sixth lens L6 with negative power. The camera lens 10 satisfies the conditional formula:

-2.7≤f6/F≤-0.2;

Wherein, f6 is the focal length of the sixth lens L6.

That is to say, f6/F can be any value within the range of [-2.7, -0.2], for example, the value can be -2.7, -2.5, -2.3, -2.1, -1.9, -1.7, -1.5 , -1.3, -1.1, -0.9, -0.7, -0.5, -0.3, -0.2, etc.

Satisfying the above conditional formula makes the sixth lens L6 have a relatively suitable refractive power to match the configuration of the overall refractive power of the imaging lens 10, and is conducive to correcting the aberrations and images generated by the first lens L1 to the fifth lens L5. Dispersion improves the resolution of the camera lens 10.

Please refer to FIGS. 1 to 5 together. In some embodiments, the camera lenses 10 in FIGS. 1 to 5 all satisfy the conditional formula:

2.0≤FNO≤10.0;

Wherein, FNO is the focal ratio of the imaging lens 10 .

That is to say, FNO can be any value within the range of [2.0, 10.0], for example, the value can be 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 9.5, 10 and so on.

Specifically, the camera lens 10 can adjust the focal ratio (that is, the aperture value) through the aperture stop STO. For example: the camera lens 10 can adjust the focal ratio to 2.4, 2.5, 2.8, etc. through the aperture stop STO.

The imaging lens 10 of the embodiment of the present invention can adjust the focal ratio within the range of 2.0 to 10.0, which can make aberrations well corrected and further meet the requirement of high imaging quality.

In some embodiments, the camera lens 10 in Fig. 1 to Fig. 5 all satisfies the conditional formula:

0.3≤f1/F≤2.0;

Wherein, f1 is the focal length of the first lens L1.

That is to say, f1/F can be any value within the range of [0.3, 2.0], for example, the value can be 0.3, 0.5, 0.7, 0.9, 1.1, 1.3, 1.5, 1.7, 1.9, 2.0 and so on.

Satisfying the above conditional formula, by rationally allocating the optical power of the first lens L1, it is beneficial to shorten the optical path of the imaging lens 10, thereby reducing the total length of the imaging lens 10, and realizing ultra-thinning of the imaging lens 10.

In some embodiments, the camera lens 10 in Fig. 1 to Fig. 5 all satisfies the conditional formula:

-0.9≤f3/F≤-0.2;

Wherein, f3 is the focal length of the third lens L3.

That is to say, f3/F can be any value within the range of [-0.9, -0.2], for example, the value can be -0.9, -0.8, -0.7, -0.6, -0.5, -0.4, -0.3 , -0.2, -0.1, etc.

Satisfying the above conditional formula makes the third lens L3 have a relatively suitable refractive power to match the configuration of the overall refractive power of the imaging lens 10, so that the sensitivity is low, and it is beneficial to correct the optical power of the first lens L1 and the second lens L2. resulting aberrations.

Please refer to FIGS. 1 to 5 together. In some embodiments, the infrared cut-off filter L7 is flat glass made of glass material, and the infrared cut-off filter L7 is used to adjust the wavelength range of light for imaging. Specifically It is used to isolate the infrared light from entering the image sensor 20 (shown in FIG. 11 ), so as to prevent the infrared light from affecting the normal image color and definition.

Please refer to Fig. 1 and Fig. 2, in some embodiments, a plurality of lenses include in order from the object side to the image side along the optical axis: a first lens L1 with positive refractive power, a second lens with positive refractive power L2, a third lens L3 with negative power, a fourth lens L4 with positive power, and a fifth lens L5 with negative power. The materials of the first lens L1 to the fifth lens L5 are all plastic.

Since the first lens L1 to the fifth lens L5 are all made of plastic lenses, the camera lens 10 can effectively eliminate aberrations and meet the requirements of high pixels, and can be ultra-thin with low cost.

In some embodiments, the first lens L1 , the second lens L2 , the third lens L3 , the fourth lens L4 , and the fifth lens L5 are all aspherical mirrors.

In this way, the camera lens 10 can effectively reduce the total length of the camera lens 10 by adjusting the curvature radius and aspheric coefficient of each lens surface, and can effectively correct system aberrations and improve imaging quality.

Please refer to FIG. 3 to FIG. 5 , in some embodiments, the plurality of lenses sequentially include from the object side to the image side along the optical axis: a first lens L1 with positive refractive power, a second lens with positive refractive power L2, a third lens L3 with negative power, a fourth lens L4 with negative power, a fifth lens L5 with positive power, and a sixth lens L6 with negative power. The materials of the first lens L1 to the sixth lens L6 are all plastic.

Since the first lens L1 to the sixth lens L6 are all made of plastic lenses, the camera lens 10 can effectively eliminate aberrations and meet the requirements of high pixels, and at the same time can achieve ultra-thin and low cost.

In some embodiments, the first lens L1 , the second lens L2 , the third lens L3 , the fourth lens L4 , the fifth lens L5 , and the sixth lens L6 are all aspherical mirrors.

In this way, the camera lens 10 can effectively reduce the total length of the camera lens 10 by adjusting the curvature radius and aspheric coefficient of each lens surface, and can effectively correct system aberrations and improve imaging quality.

Please refer to Figure 1 to Figure 5 together, the surface shape of an aspheric surface is determined by the following formula:

where Z is the sag of the surface parallel to the z-axis (the z-axis and the optical axis (AX) coincide in each of the above embodiments), r is the radial distance from the apex, and c is the sag of the surface at the apex. Curvature (the reciprocal of the radius of curvature), k is the conic constant, and A, B, C, D, E, F, G, H are the aspheric coefficients.

first embodiment

Please refer to FIG. 1 and FIG. 6 together. In the first embodiment, the plurality of lenses include in order from the object side to the image side along the optical axis: a first lens L1 with positive refractive power, a first lens L1 with positive refractive power Two lenses L2, a third lens L3 with negative power, a fourth lens L4 with positive power, and a fifth lens L5 with negative power.

The object side S1 of the first lens L1 is convex, and the image side S2 is concave. The object side S3 of the second lens L2 is convex, and the image side S4 is concave. The object side S5 of the third lens L3 is convex, and the image side S6 is concave. The object side S7 of the fourth lens L4 is concave, and the image side S8 is convex. The object side S9 of the fifth lens L5 is concave, and the image side S10 is convex.

The camera lens 10 satisfies the conditions of the following table:

Table 1

f1(mm) 22.779 F(mm) 12.317 f2(mm) 5.669 FNO 2.8 f3(mm) -4.766 HFOV(deg) 11.5 f4(mm) 13.035 f5(mm) -31.074

Table 2

table 3

Wherein, in Table 1, f1 is the focal length of the first lens L1, f2 is the focal length of the second lens L2, f3 is the focal length of the third lens L3, f4 is the focal length of the fourth lens L4, and f5 is the focal length of the fifth lens L5 , F is the effective focal length of the imaging lens 10 , FNO is the focal ratio of the imaging lens 10 , and HFOV is half of the field of view of the imaging lens 10 .

second embodiment

Please refer to FIG. 2 and FIG. 7 together. In the second embodiment, the plurality of lenses include in order from the object side to the image side along the optical axis: a first lens L1 with positive refractive power, a first lens L1 with positive refractive power Two lenses L2, a third lens L3 with negative power, a fourth lens L4 with positive power, and a fifth lens L5 with negative power.

The object side surface S1 of the first lens L1 is a convex surface. The object side S3 of the second lens L2 is convex, and the image side S4 is convex. The object side S5 of the third lens L3 is concave, and the image side S6 is concave. The object side S7 of the fourth lens L4 is concave, and the image side S8 is convex. The object side S9 of the fifth lens L5 is concave, and the image side S10 is convex.

The camera lens 10 satisfies the conditions of the following table:

Table 4

table 5

Table 6

Wherein, in Table 4, f1 is the focal length of the first lens L1, f2 is the focal length of the second lens L2, f3 is the focal length of the third lens L3, f4 is the focal length of the fourth lens L4, and f5 is the focal length of the fifth lens L5 , F is the effective focal length of the imaging lens 10 , FNO is the focal ratio of the imaging lens 10 , and HFOV is half of the field of view of the imaging lens 10 .

third embodiment

Please refer to FIG. 3 and FIG. 8 together. In the third embodiment, the plurality of lenses include in order from the object side to the image side along the optical axis: a first lens L1 with positive refractive power, a first lens L1 with positive refractive power The second lens L2, the third lens L3 with negative power, the fourth lens L4 with negative power, the fifth lens L5 with positive power, and the sixth lens L6 with negative power.

The object side S1 of the first lens L1 is convex, and the image side S2 is concave. The object side S3 of the second lens L2 is convex, and the image side S4 is convex. The object side S5 of the third lens L3 is convex, and the image side S6 is concave. The object side S7 of the fourth lens L4 is concave, and the image side S8 is concave. The object side S9 of the fifth lens L5 is concave, and the image side S10 is convex. The object side S11 of the sixth lens L6 is concave, and the image side S12 is convex.

The camera lens 10 satisfies the conditions of the following table:

Table 7

f1(mm) 7.374 F(mm) 12.341 f2(mm) 14.138 FNO 2.8 f3(mm) -8.699 HFOV(deg) 11.4 f4(mm) -10.024 f5(mm) 16.106 f6(mm) -28.149

Table 8

Table 9

Wherein, in Table 7, f1 is the focal length of the first lens L1, f2 is the focal length of the second lens L2, f3 is the focal length of the third lens L3, f4 is the focal length of the fourth lens L4, and f5 is the focal length of the fifth lens L5 , f6 is the focal length of the sixth lens L6, F is the effective focal length of the imaging lens 10, FNO is the focal ratio of the imaging lens 10, and HFOV is half of the field of view of the imaging lens 10.

Fourth Embodiment

Please refer to FIG. 4 and FIG. 9 together. In the fourth embodiment, the plurality of lenses include in sequence along the optical axis from the object side to the image side: a first lens L1 with positive refractive power, a first lens L1 with positive refractive power The second lens L2, the third lens L3 with negative power, the fourth lens L4 with negative power, the fifth lens L5 with positive power, and the sixth lens L6 with negative power.

The object side S1 of the first lens L1 is convex, and the image side S2 is concave. The object side S3 of the second lens L2 is convex, and the image side S4 is convex. The object side S5 of the third lens L3 is concave, and the image side S6 is concave. The object side S7 of the fourth lens L4 is concave, and the image side S8 is concave. The object side S9 of the fifth lens L5 is concave, and the image side S10 is convex. The object side S11 of the sixth lens L6 is concave, and the image side S12 is convex.

The camera lens 10 satisfies the conditions of the following table:

Table 10

f1(mm) 5.407 F(mm) 10.608 f2(mm) 11.986 FNO 2.4 f3(mm) -5.414 HFOV(deg) 13.0 f4(mm) -6.864 f5(mm) 7.409 f6(mm) -10.907

Table 11

Table 12

Wherein, in Table 10, f1 is the focal length of the first lens L1, f2 is the focal length of the second lens L2, f3 is the focal length of the third lens L3, f4 is the focal length of the fourth lens L4, and f5 is the focal length of the fifth lens L5 , f6 is the focal length of the sixth lens L6, F is the effective focal length of the imaging lens 10, FNO is the focal ratio of the imaging lens 10, and HFOV is half of the field of view of the imaging lens 10.

Fifth Embodiment

Please refer to FIG. 5 and FIG. 10 together. In the fifth embodiment, the plurality of lenses include in order from the object side to the image side along the optical axis: a first lens L1 with positive refractive power, a first lens L1 with positive refractive power The second lens L2, the third lens L3 with negative power, the fourth lens L4 with negative power, the fifth lens L5 with positive power, and the sixth lens L6 with negative power.

The object side S1 of the first lens L1 is convex, and the image side S2 is concave. The object side S3 of the second lens L2 is convex, and the image side S4 is concave. The object side S5 of the third lens L3 is concave, and the image side S6 is concave. The object side S7 of the fourth lens L4 is convex, and the image side S8 is concave. The object side S9 of the fifth lens L5 is convex, and the image side S10 is convex. The object side S11 of the sixth lens L6 is concave, and the image side S12 is convex.

The camera lens 10 satisfies the conditions of the following table:

Table 13

f1(mm) 6.354 F(mm) 10.780 f2(mm) 15.208 FNO 2.4 f3(mm) -3.970 HFOV(deg) 13.1 f4(mm) -52.283 f5(mm) 6.973 f6(mm) -13.375

Table 14

Table 15

Wherein, in Table 13, f1 is the focal length of the first lens L1, f2 is the focal length of the second lens L2, f3 is the focal length of the third lens L3, f4 is the focal length of the fourth lens L4, and f5 is the focal length of the fifth lens L5 , f6 is the focal length of the sixth lens L6, F is the effective focal length of the imaging lens 10, FNO is the focal ratio of the imaging lens 10, and HFOV is half of the field of view of the imaging lens 10.

In the first embodiment to the fifth embodiment, the selected image sensors 20 (shown in FIG. 11 ) are all 12 million pixels, the pixel size is 1 micron*1 micron, and the diagonal distance of the effective image sensing area is 5mm.

In the imaging lens 10 of the first embodiment to the fifth embodiment, since a plurality of lenses with positive and negative refractive powers are mixed and arranged, the requirements of the imaging lens 10 for high resolution and ultra-thinness are met, and It can ensure that the camera lens 10 has better imaging quality. The camera lens 10 can be used as an ultra-thin telephoto lens.

Please refer to FIG. 11 , the imaging lens 10 of the embodiment of the present invention can be applied to the electronic device 100 of the embodiment of the present invention. In other words, the electronic device 100 includes the image sensor 20 and the camera lens 10 of any one of the above-mentioned embodiments. The camera lens 10 is aligned with the image sensor 20 .

Specifically, the image sensor 20 may be a complementary metal oxide semiconductor (CMOS, Complementary Metal Oxide Semiconductor) image sensor or a charge-coupled device (CCD, Charge-coupled Device) image sensor. The alignment between the camera lens 10 and the image sensor 20 includes: the optical axis of the camera lens 10 coincides with the central normal of the image sensor 20 .

The electronic device 100 according to the embodiment of the present invention includes, but is not limited to, electronic devices supporting imaging for mobile phones, smart phones, tablet computers, laptop computers, notebook computers, and smart watches.

In the above embodiments, the camera lens 10 can be applied in the electronic device 100 alone. In other embodiments, the camera lens 10 (the camera lens 10 in the embodiment of the present invention is a telephoto lens) can also be combined with a wide-angle lens with a short focal length and applied in the electronic device 100 to achieve the effect of optical zoom. Specifically, when the electronic device 100 is used to acquire images, the user can select and switch between different shooting functions (telephoto or wide-angle) according to his own needs, and can cooperate with related algorithms to achieve the effect of optical zoom.

In some embodiments, the electronic device 100 satisfies the conditional formula:

1.5≤TTL/IMA≤3.1;

Wherein, IMA is the diagonal distance of the effective image sensing area of the image sensor 20 .

That is to say, the TTL/IMA can be any value within the range of [1.5, 3.1], for example, the value can be 1.5, 1.7, 1.9, 2.1, 2.3, 2.5, 2.7, 2.9, 3.1 and so on.

When TTL/IMA<1.5, it is difficult to correct various aberrations, especially field curvature and distortion aberration; when TTL/IMA>3.1, the total length of the imaging lens 10 is too long, resulting in the overall size of the imaging lens 10 . If the conditional expression above is satisfied, various aberrations can be well corrected, and ultra-thinning of the imaging lens 10 can be realized.

In the description of this specification, reference is made to the terms "certain embodiments," "one embodiment," "some embodiments," "exemplary embodiments," "examples," "specific examples," or "some examples," etc. The description means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of said features. In the description of the present utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations of the present invention, and those skilled in the art are within the scope of the present invention. Changes, modifications, substitutions and variations can be made to the above-mentioned embodiments, and the scope of the present invention is defined by the claims and their equivalents.

Claims (10)

1. a kind of pick-up lens, which is characterized in that the pick-up lens includes being sequentially arranged along the optical axis of the pick-up lens Multiple refractive lenses and cutoff filter, at least two in multiple lens have positive light coke, Duo Gesuo Stating at least one of lens, there is negative power, the pick-up lens to meet conditional：

0.75≤TTL/F≤1.25；

Wherein, F is the effective focal length of the pick-up lens, and TTL is the outermost object side of the pick-up lens to the camera shooting Distance on the axis of the imaging surface of camera lens.

2. pick-up lens according to claim 1, which is characterized in that multiple lens are from the object side to image side along optical axis Include in order：

The first lens with positive light coke；

The second lens with positive light coke；

The third lens with negative power；

The 4th lens with positive light coke；And

The 5th lens with negative power.

3. pick-up lens according to claim 2, which is characterized in that the pick-up lens meets conditional：

- 2.7≤f5/F≤- 0.2；

Wherein, f5 is the focal length of the 5th lens.

4. pick-up lens according to claim 1, which is characterized in that multiple lens are from the object side to image side along optical axis Include in order：

The first lens with positive light coke；

The second lens with positive light coke；

The third lens with negative power；

The 4th lens with negative power；

The 5th lens with positive light coke；And

The 6th lens with negative power.

5. pick-up lens according to claim 4, which is characterized in that the pick-up lens meets conditional：

- 2.7≤f6/F≤- 0.2；

Wherein, f6 is the focal length of the 6th lens.

6. according to the pick-up lens described in claim 1-5 any one, which is characterized in that the pick-up lens meets conditional：

2.0≤FNO≤10；

Wherein, FNO is the coke ratio of the pick-up lens.

7. according to the pick-up lens described in claim 2-5 any one, which is characterized in that the pick-up lens meets conditional：

0.3≤f1/F≤2.0；

Wherein, f1 is the focal length of first lens.

8. according to the pick-up lens described in claim 2-5 any one, which is characterized in that the pick-up lens meets conditional：

- 0.9≤f3/F≤- 0.2；

Wherein, f3 is the focal length of the third lens.

9. a kind of electronic device, which is characterized in that including：

Image Sensor；And

Pick-up lens described in claim 1-8 any one, the pick-up lens are aligned with the Image Sensor.

10. electronic device according to claim 9, which is characterized in that the electronic device meets conditional：

1.5≤TTL/IMA≤3.1；

Wherein, IMA is the diagonal distance in effective image sensing area of the Image Sensor.