Optical imaging lens

An optical imaging lens and lens technology, which is applied in optics, optical components, instruments, etc., can solve the problems of lack of freedom in lens design and difficulty in meeting the needs of high imaging performance.

Active Publication Date: 2017-08-29
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the reduction in the number of lenses will result in the loss of lens design freedo

Method used

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Embodiment 1

[0108] The following reference Figure 1 to Figure 2D The 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.

[0109] Such as figure 1 As shown, the optical imaging lens includes a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, and a fourth lens in order from the object side to the imaging side along the optical axis. Seven lens E7 and imaging surface S17. The optical imaging lens may further include a photosensitive element disposed on the imaging surface S17.

[0110] The first lens E1 has a positive refractive power, the object side surface S1 is convex, the image side surface S2 is concave, and the object side surface S1 and the image side surface S2 of the first lens E1 are both aspherical.

[0111] The second lens E2 has positive refractive power, the object ...

Embodiment 2

[0135] The following reference Figure 3 to Figure 4D The 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, some descriptions similar to 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.

[0136] Such as image 3 As shown, the optical imaging lens includes a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, and a fourth lens in order from the object side to the imaging side along the optical axis. Seven lens E7 and imaging surface S17. The optical imaging lens may further include a photosensitive element disposed on the imaging surface S17.

[0137] The first lens E1 has a positive refractive power, the object side S1 is convex, the image side S2 is concave, and the object side S1 and the image side S2 of the f...

Embodiment 3

[0155] The following reference Figure 5 to Figure 6D The 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.

[0156] Such as Figure 5 As shown, the optical imaging lens includes a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, and a fourth lens in order from the object side to the imaging side along the optical axis. Seven lens E7 and imaging surface S17. The optical imaging lens may further include a photosensitive element disposed on the imaging surface S17.

[0157] The first lens E1 has a positive refractive power, the object side S1 is convex, the image side S2 is concave, and the object side S1 and the image side S2 of the first lens E1 are both aspherical.

[0158] The second lens E2 has positive refractive power, the object side surface S3 is convex, the...

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PUM

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Abstract

The invention discloses an optical imaging lens. The optical imaging lens sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens along the optical axis from an objective side to an image side. The first lens, the fourth lens and the fifth lens have positive focal power or negative focal power; the second lens has positive focal power; the third lens has negative focal power; at least one of the sixth lens and the seventh lens has negative focal power. The effective focal length f1 of the first lens and the effective focal length f2 of the second lens meet an inequality of f2/|f1| 0.5.

Description

Technical field [0001] The present application relates to an optical imaging lens, and more specifically, the present application relates to an optical imaging lens including seven lenses. Background technique [0002] With the development of science and technology, portable electronic products are gradually emerging, especially portable electronic products with camera functions are more popular. In recent years, with the improvement and size reduction of commonly used photosensitive elements, such as photosensitive coupling elements (CCD) or complementary metal oxide semiconductor elements (CMOS), the high imaging quality and miniaturization of optical imaging lenses used in conjunction Both put forward higher requirements, thereby increasing the difficulty of lens design. [0003] In order to meet the miniaturization, the conventional method is to reduce the number of optical imaging lenses as much as possible. However, the reduction in the number of lenses will result in a lac...

Claims

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Application Information

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IPC IPC(8): G02B13/00
CPCG02B13/0045
Inventor 闻人建科杨林
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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