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Optical imaging lens and imaging equipment

An optical imaging lens and lens technology, which is applied in the field of optical lenses, can solve problems such as the inability to guarantee the imaging quality of the lens, and achieve the effect of improving the camera experience, high aperture, and high imaging quality

Active Publication Date: 2019-04-02
JIANGXI LIANYI OPTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current lenses configured on portable electronic devices can meet the needs of miniaturization due to their large aperture numbers, but they cannot guarantee the imaging quality of the lenses in the case of insufficient light.

Method used

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  • Optical imaging lens and imaging equipment
  • Optical imaging lens and imaging equipment
  • Optical imaging lens and imaging equipment

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0043] Please refer to figure 1 , figure 1 It is a schematic structural diagram of the optical imaging lens 100 provided by the first embodiment of the present invention.

[0044] In this example, if figure 1 As shown, the optical imaging lens 100 sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6 and a first lens L1 from the object side to the image side along the optical axis A. Seven lens L7.

[0045] Wherein, the first lens L1 has positive refractive power, its object-side surface S1 is convex, and its image-side surface S2 is concave.

[0046] The second lens L2 has a negative refractive power, which can effectively adjust the aberration produced by the first lens L1, and can also control the focusing ability of the working wavelength band.

[0047] The third lens L3 has positive refractive power.

[0048] The fourth lens L4 has negative refractive power, its object-side surface S7 is concave a...

no. 2 example

[0094] The structural diagram of the optical imaging lens 100 provided in this embodiment is substantially the same as that of the above-mentioned first embodiment, and the biggest difference lies in different design parameters.

[0095] Please refer to Figure 7 , Figure 8 , Figure 9 as well as Figure 10 , in this embodiment, the field curvature curve, distortion curve, on-axis point spherical aberration curve and lateral chromatic aberration curve of the optical imaging lens 100 are respectively as follows Figure 7 , Figure 8 , Figure 9 and Figure 10 shown. As can be seen from the figure, field curvature, distortion, and chromatic aberration are well corrected.

[0096] Specifically, the design parameters of the optical imaging lens 100 provided in this embodiment are shown in Table 3:

[0097] table 3

[0098]

[0099] In this embodiment, the aspherical parameters of each lens in the optical imaging lens 100 are shown in Table 4:

[0100] Table 4-1

[0...

no. 3 example

[0105] The structural diagram of the optical imaging lens 100 provided in this embodiment is substantially the same as that of the above-mentioned first embodiment, and the biggest difference lies in different design parameters.

[0106] Please refer to Figure 11 , Figure 12 , Figure 13 as well as Figure 14 , in this embodiment, the field curvature curve, distortion curve, on-axis point spherical aberration curve and lateral chromatic aberration curve of the optical imaging lens 100 are respectively as follows Figure 11 , Figure 12 , Figure 13 and Figure 14 shown. As can be seen from the figure, field curvature, distortion, and chromatic aberration are well corrected.

[0107] Specifically, the design parameters of the optical imaging lens 100 provided in this embodiment are shown in Table 5:

[0108] table 5

[0109]

[0110] In this embodiment, the aspherical parameters of each lens in the optical imaging lens 100 are shown in Table 6:

[0111] Table 6-1...

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Abstract

The embodiment of the invention discloses an optical imaging lens and an imaging device, which relate to the technical field of optical lenses. The optical imaging lens includes in sequence from the object side to the image side along the optical axis: a first lens with positive power, whose surface on the object side is convex and surface on the image side is concave; a second lens with negative power; The third lens with negative power; the fourth lens with negative power, its object side surface is concave at paraxial, and the image side surface is convex at paraxial; the fifth lens with negative power, its image side The surface is concave at the paraxial; the sixth lens with positive refractive power; the seventh lens with negative refractive power, its object-side surface and image-side surface are both concave at the paraxial. The optical imaging lens and imaging equipment provided by the present invention have the advantages of large aperture and high imaging quality by rationally matching the lens shape and focal power combination between the lenses.

Description

technical field [0001] The present invention relates to the technical field of optical lenses, and more particularly, to an optical imaging lens and imaging equipment. Background technique [0002] At present, the camera lens has become the standard configuration of electronic equipment (such as smart phones and cameras), and the camera lens has even become the first index considered by consumers when purchasing electronic equipment. In recent years, with the continuous development of the design level and manufacturing and processing technology, the camera lens is constantly developing towards the direction of small size, light weight and high performance. [0003] However, currently, the lenses configured on portable electronic devices can meet the requirement of miniaturization due to their large aperture numbers, but cannot guarantee the imaging quality of the lenses in the case of insufficient light. Contents of the invention [0004] In view of the above problems, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/18
CPCG02B13/0045H04M1/0264G02B9/64H04N23/55H04M2250/52H04N23/51
Inventor 刘绪明曾昊杰张田曾吉勇
Owner JIANGXI LIANYI OPTICS CO LTD
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