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Optical imaging lens

An optical imaging lens and lens technology, applied in optics, optical components, image communication, etc., can solve the problems of large size, inability to satisfy telephoto, miniaturization and high imaging quality at the same time, and achieve the effect of high imaging quality

Active Publication Date: 2018-04-24
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing telephoto lenses usually increase the number of lenses to achieve high imaging quality, so the size is relatively large, and cannot meet the requirements of telephoto, miniaturization and high imaging quality at the same time

Method used

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Examples

Experimental program
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Effect test

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 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 sixth lens E6, the seventh lens E7, the filter E8 and the imaging surface S17.

[0074]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 convex,...

Embodiment 2

[0100] 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.

[0101] 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 sixth lens E6, the seventh lens E7, the filter E8 and the imaging surface S17.

[0102] 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 ...

Embodiment 3

[0115] 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.

[0116] 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 sixth lens E6, the seventh lens E7, the filter E8 and the imaging surface S17.

[0117] 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 conv...

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Abstract

The invention discloses an optical imaging lens which comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens from an object side to an imageside in sequence along an optical axis, wherein the first lens has positive focal power and has a convex object side surface; the second lens has negative focal power and has a concave image side surface; the third lens, the fourth lens, the fifth lens and the sixth lens all have positive focal power or negative focal power; the seventh lens has negative focal power and a concave object side surface. The total effective focal length f of the optical imaging lens and the effective focal length f1 of the first lens meet the equation that f / f1 is greater than or equal to 2.0.

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] Due to the good portability of portable electronic devices such as smart phones, applications of these portable electronic devices are becoming more and more popular. People hope that the use of portable electronic devices can realize the shooting needs of relatively long-distance scenery in the wild, and can achieve the effect of highlighting the subject and blurring the background. This requires that the lens not only has telephoto characteristics, but also has miniaturization characteristics and high imaging quality. However, the existing telephoto lenses usually increase the number of lenses to achieve high imaging quality, so the size is relatively large, and cannot meet the requirements of telephoto, miniaturization and high imaging quality at the same ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00
CPCG02B13/0045G03B30/00G02B9/64G02B27/0025H04N23/55
Inventor 吕赛锋李明
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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