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miniature camera lens

A miniature camera and lens technology, applied in the field of camera lens, can solve the problems of increased camera lens volume, increased chip size, and low resolution quality, achieving clear imaging, reduced tolerance loss, and small size

Active Publication Date: 2022-04-15
JIANGXI LIANYI OPTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the requirements for image quality gradually increase, the size of the chip used will increase accordingly, resulting in an increase in the size of the camera lens, which runs counter to the direction of miniaturization of the camera lens
In addition, the camera lenses currently on the market generally have defects such as low resolution quality, overall growth, difficult processing, high cost, large temperature influence, and purple fringing phenomenon.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] The relevant parameters of each lens in the miniature camera lens of this embodiment are shown in Table 1.

[0085] Table 1

[0086]

[0087]

[0088] Table 2 shows the aspherical parameters of each lens in the miniature camera lens of this embodiment.

[0089] Table 2

[0090]

[0091]

[0092] In this embodiment, the curvature of field, distortion and on-axis spherical aberration of the miniature camera lens are as follows: Figure 2a , Figure 2b with image 3 As shown, it can be seen from the figure that the curvature, distortion and on-axis penalty of this embodiment can be well corrected.

Embodiment 2

[0094] The relevant parameters of each lens in the miniature camera lens of this embodiment are shown in Table 3.

[0095] table 3

[0096] Surface serial number structure radius of curvature thickness Refractive index Abbe number 0 thing unlimited 2000.0000 1 first lens 13.8255 1.7956 1.882 37.221 2 641.7909 0.0500 3 second lens 5.3181 0.8962 1.65 21.5 4 3.6094 0.9240 5 aperture unlimited 0.2247 6 third lens -321.4642 1.2770 1.54 56.0 7 -9.3533 0.6792 8 fourth lens -32.7861 1.5208 1.65 21.5 9 30.9952 0.1478 10 fifth lens -14.5217 3.9087 1.54 56.0 11 -2.2506 0.0500 12 sixth lens 6.2109 1.5555 1.75 29.4 13 2.3388 1.4704 14 filter unlimited 0.8000 15 unlimited 1.7031 16 imaging surface unlimited 0.0000

[0097] The aspherical parameters of each lens in the miniat...

Embodiment 3

[0103] The relevant parameters of each lens in the miniature camera lens of this embodiment are shown in Table 5.

[0104] table 5

[0105]

[0106]

[0107] The aspherical parameters of each lens in the miniature camera lens of this embodiment are shown in Table 6.

[0108] Table 6

[0109]

[0110] In this embodiment, the curvature of field, distortion and on-axis penalty of the miniature camera lens are as follows: Figure 6a , Figure 6b with Figure 7 As shown, it can be seen from the figure that the curvature, distortion and on-axis penalty of this embodiment can be well corrected.

[0111] In addition, Table 7 is the above-mentioned 3 embodiments and their corresponding optical characteristics, including the focal length f of the miniature camera lens, the number of apertures F#, the total optical length T of the miniature camera lens L And the angle of view 2θ, and the value corresponding to each of the previous conditional expressions.

[0112] Table 7 ...

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Abstract

The invention discloses a miniature camera lens, which comprises sequentially from the object side to the image side: a meniscus-shaped first lens with a positive refractive power and a concave surface facing the image side; a first lens with a negative refractive power and a concave surface Meniscus-shaped second lens facing the image side; stop; meniscus-shaped third lens with positive power and convex surface facing the image side; fourth lens with negative power and biconcave; A fifth lens with a focal power and a convex surface facing the image side and a concave surface facing the object side; a sixth lens having negative refractive power and a concave surface facing the image side; an infrared cut filter. The optical centers of the above six lenses are located on the same straight line, wherein the first lens is a glass aspheric lens, and the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens are all plastic aspheric lenses. The miniature camera lens proposed by the invention has the characteristics of miniaturization, light weight, low cost and high picture pixels.

Description

technical field [0001] The invention relates to the technical field of camera lenses, in particular to a miniature camera lens. 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. [0003] 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. However, as the requirements for image quality gradually increase, the size of the chip used will increase accordingly, resulting in an increase in the volume of the camera lens, which runs counter to the direction of miniaturization of the camera lens. In addition, camera lenses currently on the market generally have defects such as low resolution qua...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B13/06G02B13/18G02B1/00G02B1/04
CPCG02B13/0045G02B13/06G02B13/18G02B1/00G02B1/041
Inventor 李伟娜高博
Owner JIANGXI LIANYI OPTICS CO LTD
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