Micro camera lens

A miniature camera and lens technology, applied in the field of camera lenses, can solve the problems of increasing the size of the camera lens, the size of the chip, and the difficulty of processing, and achieves the effects of small size, reduced tolerance loss, and high-quality resolution.

Active Publication Date: 2017-03-22
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 and 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] Table 6 shows the aspherical parameters of each lens in the miniature camera lens of this embodiment.

[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

[011...

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Abstract

The present invention discloses a micro camera lens. The micro camera lens sequentially comprises a meniscus first lens, a meniscus second lens, a diaphragm, a meniscus third lens, a biconcave fourth lens, a fifth lens, a sixth lens and an infrared cut-off filter from the object side to the image side. The first lens has a positive focal power and the concave surface of the first lens is facing the image side. The second lens has a negative focal power and the concave surface of the second lens is facing the image side. The third lens has a positive focal power and the convex surface of the third lens is facing the image side. The fourth lens has a negative focal power. The fifth lens has a positive focal power, wherein the convex surface of the fifth lens is facing the image side and the concave surface of the fifth lens is facing the object side. The sixth lens has a negative focal power and the concave surface of the sixth lens is facing the image side. The optical centers of the above six lenses are positioned on the same straight line. The first lens is a glass aspheric lens. The second lens, the third lens, the fourth lens, the fifth lens and the sixth lens are plastic aspheric lenses. The micro camera lens provided by the present invention has the advantages of miniaturization, light weight, low cost and high image pixel.

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 Applications(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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