Optical imaging lens group

An optical imaging and lens group technology, applied in optics, optical components, instruments, etc., can solve the problems of fingerprint unlocking function defects under the screen and poor light transmission of the camera under the screen.

Pending Publication Date: 2021-01-08
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to meet market demand, electronic products with the function of fingerprint unlocking under the screen have gradually entered the public's field of vision. However, at present, the cameras under the screen of most electronic products have poor light transmission, which leads to certain defects in the fingerprint unlocking function under the screen.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] Refer to the following Figure 1 to Figure 2D An optical imaging lens group according to Embodiment 1 of the present application is described. figure 1 A schematic structural diagram of an optical imaging lens group according to Embodiment 1 of the present application is shown.

[0079] Such as figure 1 As shown, the optical imaging lens group includes in sequence from the object side to the image side: stop STO, first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6 , filter E7 and imaging surface S15.

[0080] The first lens E1 has negative refractive power, its object side S1 is convex, and its image side S2 is concave. The second lens E2 has positive refractive power, its object side S3 is convex, and its image side S4 is convex. The third lens E3 has negative refractive power, its object side S5 is convex, and its image side S6 is concave. The fourth lens E4 has negative refractive power, its object side S7 is concave, and i...

Embodiment 2

[0096] Refer to the following Figure 3 to Figure 4D An optical imaging lens group according to Embodiment 2 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, descriptions similar to those in Embodiment 1 will be omitted. image 3 A schematic structural diagram of an optical imaging lens group according to Embodiment 2 of the present application is shown.

[0097] Such as image 3 As shown, the optical imaging lens group includes in sequence from the object side to the image side: stop STO, first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6 , filter E7 and imaging surface S15.

[0098] The first lens E1 has negative refractive power, its object side S1 is convex, and its image side S2 is concave. The second lens E2 has positive refractive power, its object side S3 is convex, and its image side S4 is convex. The third lens E3 has negative refractive power, its object s...

Embodiment 3

[0109] Refer to the following Figure 5 to Figure 6D An optical imaging lens group according to Embodiment 3 of the present application is described. Figure 5 A schematic structural diagram of an optical imaging lens group according to Embodiment 3 of the present application is shown.

[0110] Such as Figure 5 As shown, the optical imaging lens group includes in sequence from the object side to the image side: stop STO, first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6 , filter E7 and imaging surface S15.

[0111] The first lens E1 has negative refractive power, its object side S1 is convex, and its image side S2 is concave. The second lens E2 has positive refractive power, its object side S3 is convex, and its image side S4 is convex. The third lens E3 has negative refractive power, its object side S5 is convex, and its image side S6 is concave. The fourth lens E4 has negative refractive power, its object side S7 is convex, and ...

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Abstract

The invention discloses an optical imaging lens group, which sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens from an object side to an image side along an optical axis, wherein the second lens has focal power; the third lens has focal power, and an image side surface of the third lens is a concave surface; the fourth lens has negativefocal power; the fifth lens has focal power; and the sixth lens has focal power. Half (Semi-FOV) of the maximum field angle of the optical imaging lens group meets the condition that the Semi-FOV is larger than 45 degrees and smaller than 55 degrees. The curvature radius R1 of the object side surface of the first lens, the curvature radius R2 of the image side surface of the first lens, the curvature radius R3 of the object side surface of the second lens, and the curvature radius R4 of the image side surface of the second lens satisfy the conditions that 0.5<(R1+R2) / (R3-R4)<1.5.

Description

technical field [0001] The present application relates to the field of optical elements, in particular to an optical imaging lens group. Background technique [0002] With the rapid development of portable electronic products such as mobile phones and tablet computers, users have higher and higher requirements on the appearance and performance of portable electronic products such as mobile phones and tablet computers. At the same time, there is an increasing demand for the under-screen fingerprint unlocking function of electronic products in the market. In order to meet the market demand, electronic products with the function of fingerprint unlocking under the screen have gradually entered the public's field of vision. However, at present, the cameras under the screen of most electronic products have poor light transmission, which leads to certain defects in the fingerprint unlocking function under the screen. Contents of the invention [0003] One aspect of the present a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045G02B13/18G02B27/0025G02B9/62
Inventor 王晓芳戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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