Pick-up lens group

A camera lens and lens technology, which is applied in the field of camera lens groups, can solve problems such as large viewing angle, difficult to solve distortion problems, short focal length, etc., and achieve good image quality

Pending Publication Date: 2021-01-08
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The wide-angle lens has a short focal length but a large viewing angle. At the same shooting distance, it can capture a larger area of ​​the scene, but there is a relatively serious perspective distortion, and at the same time, the sense of distance between the front and rear scenes increases.
Even with auxiliary algorithm corrections, it is difficult to solve the distortion problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Refer to the following Figure 1 to Figure 2D An imaging lens group according to Embodiment 1 of the present application will be described. figure 1 A schematic structural diagram of the camera lens group according to Embodiment 1 of the present application is shown.

[0065] Such as figure 1 As shown, the camera lens group includes in sequence from the object side to the image side along the optical axis: the first lens E1, the second lens E2, the diaphragm STO, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens Lens E6 and filter E7.

[0066] 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 concave. The third lens E3 has positive refractive power, its object side S5 is convex, and its image side S6 is convex. The fourth lens E4 has negative refractive power, its object side ...

Embodiment 2

[0078] Refer to the following Figure 3 to Figure 4D An imaging lens group 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 the camera lens group according to Embodiment 2 of the present application is shown.

[0079] Such as image 3 As shown, the camera lens group includes in sequence from the object side to the image side along the optical axis: the first lens E1, the second lens E2, the diaphragm STO, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens Lens E6 and filter E7.

[0080] 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 concave. The third lens E3 has positive refractiv...

Embodiment 3

[0089] Refer to the following Figure 5 to Figure 6D An imaging lens group according to Embodiment 3 of the present application is described. Figure 5 A schematic structural diagram of a camera lens group according to Embodiment 3 of the present application is shown.

[0090] Such as Figure 5 As shown, the camera lens group includes in sequence from the object side to the image side along the optical axis: the first lens E1, the second lens E2, the diaphragm STO, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens Lens E6 and filter E7.

[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 concave. The third lens E3 has positive refractive power, its object side S5 is convex, and its image side S6 is convex. The fourth lens E4 has negative refractive power, its object side S7 is...

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PUM

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Abstract

The invention discloses a pick-up lens group. The pick-up lens group sequentially comprises a first lens with negative focal power, a second lens with focal power, a third lens with positive focal power, a fourth lens with focal power and a fifth lens with positive focal power from an object side to an image side along an optical axis; the object side surface of the first lens is a concave surface, and the image side surface of the first lens is a concave surface; the object side surface of the second lens is a convex surface, and the image side surface of the second lens is a concave surface;the object side surface of the third lens is a convex surface, and the image side surface of the third lens is a convex surface; the fourth lens has focal power; the fifth lens has positive focal power, and the image side surface of the fifth lens is a convex surface; the sixth lens has negative focal power, the object side surface of the sixth lens is a convex surface, and the image side surfaceof the sixth lens is a concave surface; half of the SemiFOV of the field angle of the pick-up lens group and half of the ImgH of the diagonal length of the effective pixel area on the imaging surfaceof the pick-up lens group satisfy the following relational expression that: 10.00 mm<tan2(Semi-FOV)*ImgH<23.50 mm; the maximum distortion of the pick-up lens group is less than 3.50%.

Description

technical field [0001] The present application relates to the field of optical elements, and more specifically, to a camera lens group. Background technique [0002] With the rapid development of science and technology, portable smart devices represented by mobile phones are becoming more and more popular, and people's interest and demand for using mobile phones to take pictures or videos is also increasing. With the continuous development of mobile phone lenses, it is an inevitable trend to replace cameras with high-quality camera phones. [0003] One advantage of mobile phones over cameras is that mobile phones have developed to dual-camera, triple-camera, quadruple-camera or even five-camera, and algorithms are combined to improve image quality. The current mainstream mobile phone lens configuration generally includes a large image lens, a telephoto lens, and a wide-angle lens. The wide-angle lens has a short focal length but a large viewing angle. At the same shooting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/06G02B13/18
CPCG02B13/0045G02B13/06G02B13/18G02B9/62G02B27/0025
Inventor 周进闻人建科戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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