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Optical imaging lens

A technology of optical imaging lens and imaging surface, which is applied in optics, optical components, instruments, etc., can solve the problems that the focal length is easily affected by the ambient temperature and the image quality declines, and achieve the effect of good image quality

Pending Publication Date: 2022-01-11
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the long focal length lens is usually very susceptible to the influence of the ambient temperature due to the long focal length, and the image quality is easily degraded due to the change of temperature.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] 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 is a schematic diagram showing the structure of an optical imaging lens according to Embodiment 1 of the present application.

[0071] Such as figure 1 As shown, the optical imaging lens includes sequentially from the object side to the image side along the optical axis: 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 Slice E6 and imaging surface S13.

[0072]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 concave. The fourth lens E4 has positive refractive power, its object side ...

Embodiment 2

[0084] Refer to the following Figure 3 to Figure 4D An optical imaging lens according to Embodiment 2 of the present application is described. image 3 A schematic structural diagram of an optical imaging lens according to Embodiment 2 of the present application is shown.

[0085] Such as image 3 As shown, the optical imaging lens includes sequentially from the object side to the image side along the optical axis: 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 Slice E6 and imaging surface S13.

[0086] 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 concave. The fourth lens E4 has positive refractive power, its object side S7 i...

Embodiment 3

[0096] 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.

[0097] Such as Figure 5 As shown, the optical imaging lens includes sequentially from the object side to the image side along the optical axis: 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 Slice E6 and imaging surface S13.

[0098] 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 concave, 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 concave. The fourth lens E4 has positive refractive power, its object side S...

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Abstract

The invention discloses an optical imaging lens. The optical imaging lens sequentially comprises, from an object side to an image side along an optical axis: a first lens having positive focal power; a second lens having negative focal power; a third lens having focal power; a fourth lens having focal power, the image side surface of the fourth lens being a convex surface; and a fifth lens having negative focal power, and the object side surface of the fifth lens being a concave surface; wherein 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 the total effective focal length f of the optical imaging lens meet the condition that TTL / f is less than 1.1; and the combined focal length f123 of the first lens, the second lens and the third lens and the combined focal length f45 of the fourth lens and the fifth lens meet the condition that f123 / f45 is more than -0.8 and less than -0.3.

Description

[0001] Divisional Application Statement [0002] This application is a divisional application of the Chinese invention patent application submitted on September 25, 2019 with the title of invention "Optical Imaging Lens" and application number 201910913431. technical field [0003] The present application relates to an optical imaging lens, in particular to an optical imaging lens including five lenses. Background technique [0004] With the advancement of science and technology, electronic products with camera functions are developing rapidly, and are more and more used in multi-scene cameras in different environments. Among them, electronic products that can be used in long-distance high-definition cameras are more popular in the market. For the camera function of electronic products, the optical imaging lens is the key to determine the camera effect of electronic products. The long focal length lens is very suitable for long-distance shooting because of its small depth o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045G02B13/18G03B30/00
Inventor 陈晨张凯元徐武超徐标戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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