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Camera lens

A camera lens and lens technology, applied in the field of camera lens, can solve problems such as increasing the difficulty of lens design, and achieve the effect of high imaging quality

Pending Publication Date: 2019-02-19
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, in order to meet the miniaturization trend of portable electronic products, the lens needs to be as thin and small as possible, which increases the difficulty of lens design

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] Refer to the following Figure 1 to Figure 2D An imaging lens according to Embodiment 1 of the present application will be described. figure 1 A schematic structural diagram of an imaging lens according to Embodiment 1 of the present application is shown.

[0081] Such as figure 1 As shown, the imaging lens according to the exemplary embodiment of the present application includes in sequence from the object side to the image side along the optical axis: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, The fifth lens E5, the sixth lens E6, the seventh lens E7, the filter E8 and the imaging surface S17. Wherein, the maximum semi-diameters of the first lens, the second lens, and the third lens decrease sequentially, while the maximum effective semi-diameters of the fourth lens, the fifth lens, the sixth lens, and the seventh lens increase sequentially.

[0082] The first lens E1 has positive refractive power, its object side S1 is convex...

Embodiment 2

[0119] Refer to the following Figure 3 to Figure 4D An imaging lens according to Embodiment 2 of the present application will be 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 imaging lens according to Embodiment 2 of the present application is shown.

[0120] Such as image 3 As shown, the imaging lens according to the exemplary embodiment of the present application includes in sequence from the object side to the image side along the optical axis: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, The fifth lens E5, the sixth lens E6, the seventh lens E7, the filter E8 and the imaging surface S17. Wherein, the maximum semi-diameters of the first lens, the second lens, and the third lens decrease sequentially, while the maximum effective semi-diameters of the fourth lens, the fifth lens, the sixt...

Embodiment 3

[0134] Refer to the following Figure 5 to Figure 6D An imaging lens according to Embodiment 3 of the present application is described. Figure 5 A schematic structural diagram of an imaging lens according to Embodiment 3 of the present application is shown.

[0135] Such as Figure 5 As shown, the imaging lens according to the exemplary embodiment of the present application includes in sequence from the object side to the image side along the optical axis: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, The fifth lens E5, the sixth lens E6, the seventh lens E7, the filter E8 and the imaging surface S17. Wherein, the maximum semi-diameters of the first lens, the second lens, and the third lens decrease sequentially, while the maximum effective semi-diameters of the fourth lens, the fifth lens, the sixth lens, and the seventh lens increase sequentially.

[0136] The first lens E1 has positive refractive power, its object side S1 is convex, a...

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Abstract

The present application discloses a camera lens. The camera lens comprises in order from an object side to an image side along an optical axis: a first lens having a positive focal power; a second lens having a focal power; a third lens having a focal power, wherein the image side is a concave surface; a fourth lens having a focal power; a fifth lens having a focal power, wherein the image side isa convex surface; a sixth lens having a focal power, wherein the image side is a convex surface; and a seventh lens having a focal power, wherein at least one of the object side and the image side isa concave surface. The distance TTL of the object side of the first lens to the imaging side of the camera lens on the optical axis and the half of the diagonal length ImgH of the effective pixel area on the imaging side of the camera lens satisfy TTL / ImgH < 1.5. The center thickness CT1 of the first lens on the optical axis, the center thickness CT2 of the second lens on the optical axis, andthe center thickness CT3 of the third lens on the optical axis satisfy 1.5 < CT1 / (CT2 + CT3) < 2.2.

Description

technical field [0001] The present application relates to a camera lens, and more particularly, to a camera lens including seven lenses. Background technique [0002] With the rapid development of portable electronic products such as smart phones and tablet computers, portable electronic products with camera functions are more and more favored by people, and people have higher and higher requirements on the quality of lens imaging. On the one hand, in order to meet the miniaturization trend of portable electronic products, the lens needs to be as thin and small as possible, which increases the difficulty of lens design. On the other hand, with the performance improvement and size reduction of common photosensitive elements such as photosensitive coupling device (CCD) or complementary metal oxide semiconductor device (CMOS), the design freedom of the corresponding lens is getting smaller and more difficult to design. is increasing day by day. How to take into account miniat...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045G02B13/18
Inventor 王晓芳张凯元黄林
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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