Optical imaging lens

An optical imaging lens and lens technology, applied in optics, optical components, instruments, etc., can solve the problem of poor performance of lens imaging quality and detail.

Pending Publication Date: 2019-04-26
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, reducing the lens aperture is an effective way to reduce the size of the optical lens. However, the imaging quality of the lens, especially the ability to express details, tends to deteriorate with the reduction of the lens aperture.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] Refer to the following Figure 1 to Figure 2D An optical imaging lens according to Embodiment 1 of the present application is described. figure 1 A schematic structural diagram of an optical imaging lens according to Embodiment 1 of the present application is shown.

[0078] Such as figure 1 As shown, the optical imaging lens according to the exemplary embodiment of the present application includes sequentially along the optical axis from the object side to the image side: a stop STO, a first lens E1, a second lens E2, a third lens E3, and a fourth lens E4 , the fifth lens E5, the filter E6 and the imaging surface S13.

[0079]The first lens E1 has positive refractive power, its object side S1 is convex, and its image side S2 is concave. The second lens E2 has negative refractive power, its object side S3 is convex, and its image side S4 is concave. The third lens E3 has negative refractive power, its object side S5 is convex, and its image side S6 is concave. The ...

Embodiment 2

[0109] Refer to the following Figure 3 to Figure 4D An optical imaging lens 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 according to Embodiment 2 of the present application is shown.

[0110] Such as image 3 As shown, the optical imaging lens according to the exemplary embodiment of the present application includes sequentially along the optical axis from the object side to the image side: a stop STO, a first lens E1, a second lens E2, a third lens E3, and a fourth lens E4 , the fifth lens E5, the filter E6 and the imaging surface S13.

[0111] The first lens E1 has positive refractive power, its object side S1 is convex, and its image side S2 is concave. The second lens E2 has negative refractive power, its object side S3 is convex, and its image...

Embodiment 3

[0125] Refer to the following Figure 5 to Figure 6D An optical imaging lens according to Embodiment 3 of the present application is described. Figure 5 A schematic structural diagram of an optical imaging lens according to Embodiment 3 of the present application is shown.

[0126] Such as Figure 5 As shown, the optical imaging lens according to the exemplary embodiment of the present application includes sequentially along the optical axis from the object side to the image side: a stop STO, a first lens E1, a second lens E2, a third lens E3, and a fourth lens E4 , the fifth lens E5, the filter E6 and the imaging surface S12.

[0127] The first lens E1 has positive refractive power, its object side S1 is convex, and its image side S2 is convex. The second lens E2 has negative refractive power, its object side S2 is concave, and its image side S3 is concave. In this embodiment, the image side S2 of the first lens E1 is substantially coincident with the object side S2 of t...

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Abstract

The invention discloses an optical imaging lens. The optical imaging lens comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens, and the first lens, the second lens, thethird lens, the fourth lens and the fifth lens are sequentially arranged along the optical axis from the object side to the image side and have focal power. The first optical lens has positive focal power, and the object-side surface of the first lens is a concave surface; the second lens has negative focal power; the image-side surface of the fourth lens is a convex surface; the fifth lens has negative focal power, the object-side surface of the fifth lens is a convex surface, and the image-side surface of the fifth lens is a concave surface; the first lens and the second lens are glued to form a glued lens group; any one of the third lens, the fourth lens and the fifth lens and the lens adjacent to the lens form an air interval; the maximal effective semi-diameter DT11 of the object-sidesurface of the first lens and the maximal effective semi-diameter DT22 of the image-side surface of the second lens meet the condition that (DT11+DT22) / 2 is smaller than or equal to 0.9 mm.

Description

technical field [0001] The present application relates to an optical imaging lens, and more particularly, the present application relates to an optical imaging lens including five lenses. Background technique [0002] With the continuous development of optical systems in various fields, people have put forward higher and higher requirements for the imaging quality of optical lenses. At the same time, it is also required that the lenses mounted on electronic products such as mobile phones have the characteristics of miniaturization and low processing cost. Generally speaking, reducing the lens aperture is an effective way to reduce the size of the optical lens. However, the imaging quality of the lens, especially the ability to express details, tends to deteriorate with the reduction of the lens aperture. Therefore, how to balance the relationship between small-aperture features and high-quality imaging is an urgent problem to be solved. Contents of the invention [0003]...

Claims

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Application Information

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IPC IPC(8): G02B13/00
CPCG02B13/0015G02B13/004G02B13/006G02B13/18
Inventor 张战飞黄林戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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