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Camera lens group

A camera lens and lens technology, applied in optical components, optics, instruments, etc., can solve the problems of increasing the difficulty of lens design for mobile phones and other portable electronic products, limiting the total length of camera lenses, etc., and achieving large image surface imaging quality and high imaging quality Effect

Pending Publication Date: 2019-12-27
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the thinning of the thickness of portable electronic products such as mobile phones, the total length of the camera lens is limited, which increases the difficulty of designing the lens of portable electronic products such as mobile phones

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] 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 an imaging lens group according to Embodiment 1 of the present application is shown.

[0086] like figure 1 As shown, the imaging lens group includes in sequence from the object side to the image side: a diaphragm 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, The seventh lens E7, the filter E8 and the imaging surface S17.

[0087] 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...

Embodiment 2

[0099] 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 an imaging lens group according to Embodiment 2 of the present application is shown.

[0100] like image 3 As shown, the imaging lens group includes in sequence from the object side to the image side: a diaphragm 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, The seventh lens E7, the filter E8 and the imaging surface S17.

[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 positive refractive power, its object side S3 is convex, and its image side S4 is concave. The third lens E3 has negative refr...

Embodiment 3

[0111] 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 an imaging lens group according to Embodiment 3 of the present application is shown.

[0112] like Figure 5 As shown, the imaging lens group includes in sequence from the object side to the image side: a diaphragm 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, The seventh lens E7, the filter E8 and the imaging surface S17.

[0113]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 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 object side...

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Abstract

The invention discloses a camera lens group. From an object side to an image side, the camera lens group comprises in sequence along an optical axis: a first lens with positive refractive power, a second lens with refractive power, a third lens with refractive power, a fourth lens with refractive power, a fifth lens with refractive power, a sixth lens with refractive power, and a seventh lens withnegative refractive power, wherein the object side of the first lens is a convex surface, the image side of the third lens is a concave surface, the image side of the sixth lens is a convex surface,the image side of the seventh lens is a concave surface, total effective focus f of the camera lens group and entrance pupil diameter EPD meet: f / EPD is less than 1.6, and maximum field of view FOV ofthe camera lens group meets: tan(FOV) is greater than 12.

Description

technical field [0001] The present application relates to the field of optical elements, in particular, to an imaging lens group. Background technique [0002] In recent years, with the development of photographing technology for portable electronic products such as mobile phones, lenses of portable electronic products such as mobile phones with high image quality are becoming more and more popular. However, due to the thinning of portable electronic products such as mobile phones, the total length of the camera lens is limited, thereby increasing the difficulty of designing the lens of portable electronic products such as mobile phones. [0003] At the same time, with the improvement of the performance and the reduction of the pixel size of the photosensitive element photosensitive coupling device (CCD) or complementary metal oxide semiconductor element (CMOS) commonly used in the camera lens of mobile phones and other portable electronic products, the corresponding camera ...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0015G02B13/0045
Inventor 肖海东张凯元戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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