Optical imaging lens

An optical imaging lens and imaging surface technology, applied in optics, optical components, instruments, etc., can solve the problem that the optical system is difficult to meet the requirements of high specification and miniaturization at the same time, and achieve the effect of large field of view and high imaging quality

Pending Publication Date: 2021-02-09
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] While portable electronic products are becoming thinner and lighter, it is difficult for traditional optical systems to meet the requirements of high specifications and miniaturization at the same time. Therefore, in order to meet people's demand for higher-quality optical systems, it is urgent to design an optical system with imaging performance. Optical imaging lens with the advantages of good, large field of view and miniaturization

Method used

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Experimental program
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Embodiment 1

[0072] 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.

[0073] Such as figure 1 As shown, the optical imaging lens includes in sequence from the object side to the image side: a diaphragm STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6 and Imaging surface S13.

[0074] 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 positive refractive power, its object side S5 is convex, and its image side S6 is convex. The fourth lens E4 has positive refractive power, its object side S7 is concave, and its image side S...

Embodiment 2

[0088] 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.

[0089] Such as image 3 As shown, the optical imaging lens includes in sequence from the object side to the image side: a diaphragm STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6 and Imaging surface S13.

[0090] 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 positive refractive power, its object side S5 is conv...

Embodiment 3

[0102] Refer to the following Figure 5 to Figure 6D An optical imaging lens according to Embodiment 3 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. Figure 5 A schematic structural diagram of an optical imaging lens according to Embodiment 3 of the present application is shown.

[0103] Such as Figure 5 As shown, the optical imaging lens includes in sequence from the object side to the image side: a diaphragm STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6 and Imaging surface S13.

[0104] 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 S3 is concave, and its image side S4 is concave. The third lens E3 has positive refractive power, its object side S5 is co...

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Abstract

The invention relates to an optical imaging lens, and the lens sequentially comprises the following lens from an object side to an image side along an optical axis: a first lens having focal power; asecond lens having focal power; a third lens having positive focal power; a fourth lens having focal power; and a fifth lens, wherein the object side surface of the fifth lens is a convex surface, andthe image side surface of the fifth lens is a concave surface. The maximum field angle FOV of the optical imaging lens meets the condition that the FOV is greater than 90 degrees; the distance TTL from the object side surface of the first lens to the imaging surface of the optical imaging lens on the optical axis and half ImgH of the diagonal length of an effective pixel region on the imaging surface of the optical imaging lens meet the following condition: TTL / ImgH is less than 1.4; the effective focal length f2 of the second lens and the effective focal length f4 of the fourth lens meet thecondition that f2 / f4 is larger than 1.0 and smaller than 2.5.

Description

technical field [0001] The present application relates to the field of optical elements, in particular, to an optical imaging lens. Background technique [0002] With the rapid development of science and technology in recent years, portable electronic products, especially portable electronic products with camera functions, are more and more popular. Among them, the optical imaging lens and photosensitive element of the optical system play a vital role in it. The photosensitive element of a general optical system is nothing more than a photosensitive coupling device (CCD) or a complementary metal oxide semiconductor element (CMOS), both of which are made by semiconductor process technology. With the continuous improvement of the semiconductor process technology, the pixel size of the photosensitive element made of it is continuously reduced, and correspondingly, the size of the optical imaging lens of the optical system needs to be smaller and smaller, so as to realize the m...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/06G02B13/18
CPCG02B13/0045G02B13/06G02B13/18
Inventor 吴旭炯戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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