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Optical imaging camera lens

An optical imaging lens and lens technology, applied in optics, optical components, instruments, etc., can solve the problems of large lens size, unfavorable imaging quality, and increased off-axis aberration, and achieve large field of view, high imaging quality, and small distortion effect

Pending Publication Date: 2019-05-21
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to meet the requirements of a wide field of view, the method of increasing the number of lenses is generally adopted, but the more lenses, the less conducive to the miniaturization and weight reduction of the lens; at the same time, with the increase of the field of view, the off-axis image The difference also increases sharply, which is not conducive to improving the image quality
Although ensuring the incident height of light can be beneficial to the correction of off-axis aberrations, the higher incident height requires the lens to have a larger size, which is not conducive to the miniaturization of the lens

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] 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.

[0075] Such as figure 1 As shown, the optical imaging lens includes in sequence from the object side to the image side along the optical axis: the first lens E1, the diaphragm STO, the second lens E2, the third lens E3, the fourth lens E4, the fifth lens E5, the filter Slice E6 and imaging surface S13.

[0076] The first lens E1 has negative refractive power, its object side S1 is concave, 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 positive refractive power, its obj...

Embodiment 2

[0089] 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.

[0090] Such as image 3 As shown, the optical imaging lens includes in sequence from the object side to the image side along the optical axis: the first lens E1, the diaphragm STO, the second lens E2, the third lens E3, the fourth lens E4, the fifth lens E5, the filter Slice E6 and imaging surface S13.

[0091] The first lens E1 has negative refractive power, its object side S1 is concave, 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 r...

Embodiment 3

[0099] 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.

[0100] Such as Figure 5 As shown, the optical imaging lens includes in sequence from the object side to the image side along the optical axis: the first lens E1, the diaphragm STO, the second lens E2, the third lens E3, the fourth lens E4, the fifth lens E5, the filter Slice E6 and imaging surface S13.

[0101] The first lens E1 has negative refractive power, its object side S1 is concave, 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 positive refractive power, its object side S5 is convex, and its image side S6 is concave. The fourth lens E4 has positive refractive power, its o...

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Abstract

The invention discloses an optical imaging camera lens. The camera lens successively comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens along an optical axis from an object side to an image side, wherein the first lens has focal power, an object side surface is a concave surface and an image side surface is the concave surface; the second lens has positive focal power; the third lens has the focal power and the object side surface is a convex surface; the fourth lens has the positive focal power; the fifth lens has negative focal power; and the effective focallength f1 of the first lens and the radius of curvature R1 of the object side surface of the first lens satisfy the following relation: f1 / R1 is greater than or equal to 0.7 and is less than 1.5.

Description

technical field [0001] The present application relates to an optical imaging lens, and more particularly, to an optical imaging lens including five lenses. Background technique [0002] In recent years, with the development of chip technologies such as CCD or CMOS, the optical imaging lens has gradually developed in the field of miniaturization, light weight and high pixel. More and more electronic products on the market have higher and higher requirements for the field of view of optical imaging lenses. In order to meet these trends, the optical imaging lenses used in various portable electronic products are further required to be miniaturized, high imaging quality and wide-angle. [0003] In order to meet the requirements of a wide field of view, the method of increasing the number of lenses is generally adopted, but the more lenses, the less conducive to the miniaturization and weight reduction of the lens; at the same time, with the increase of the field of view, the of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B9/60G02B13/0045G02B27/0025
Inventor 闻人建科卢凤龙戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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