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Pick-up lens

A technology of camera lens and lens, which is applied in the field of camera lens, can solve the problems of image quality reduction, lower reliability of camera lens, etc., and achieve the effect of optimizing optical parameters

Active Publication Date: 2021-08-03
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, as the application fields of portable electronic products such as smartphones become more and more extensive, when used in an environment with large temperature differences, the image quality will be reduced to varying degrees, which will reduce the reliability of the camera lens

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] Refer to the following Figure 1 to Figure 2C 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.

[0083] Such as figure 1 As shown, the imaging lens includes in sequence from the object side to the image side: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a Seventh lens E7, eighth lens E8, filter E9 and imaging surface S19.

[0084] 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 is co...

Embodiment 2

[0099] Refer to the following Figure 3 to Figure 4C 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.

[0100] Such as image 3 As shown, the imaging lens includes in sequence from the object side to the image side: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a Seventh lens E7, eighth lens E8, filter E9 and imaging surface S19.

[0101] 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, ...

Embodiment 3

[0114] Refer to the following Figure 5 to Figure 6C 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.

[0115] Such as Figure 5As shown, the imaging lens includes in sequence from the object side to the image side: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a Seventh lens E7, eighth lens E8, filter E9 and imaging surface S19.

[0116] 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 is concav...

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Abstract

The invention discloses a pick-up lens. The pick-up lens comprises a first lens with positive focal power, a second lens with focal power, a third lens with focal power, a fourth lens with focal power, a fifth lens with focal power, a sixth lens with focal power, a seventh lens with positive focal power, and an eighth lens with negative focal power which are sequentially distributed. The total effective focal length f of the pick-up lens and the maximum half field angle Semi-FOV of the pick-up lens meet the condition that f * tan (Semi-FOV) is greater than 7.0 mm; and the refractive index N1 of the first lens and the refractive index N4 of the fourth lens meet the condition that (N4+N1) / (N4-N1) is less than 20.

Description

technical field [0001] The present application relates to the field of optical elements, in particular, to a camera lens. Background technique [0002] With the vigorous development of portable electronic products such as smartphones, major smartphone manufacturers have put forward higher design requirements for camera lenses mounted on smartphones. At present, most camera lenses are developing towards large image area, large aperture and high imaging quality. [0003] However, as the application fields of portable electronic products such as smartphones become more and more extensive, when used in an environment with large temperature differences, the image quality will be reduced to varying degrees, which will reduce the reliability of the camera lens. How to make the camera lens meet the characteristics of miniaturization and large image surface, and also have strong temperature adaptability, that is, it can work normally in the environment with large temperature differe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045G02B13/18
Inventor 闻人建科戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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