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Optical imaging lens group

A technology of optical imaging and lens group, applied in the direction of optics, optical components, instruments, etc., to achieve the effect of optimizing optical parameters and good imaging quality

Pending Publication Date: 2020-07-17
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the number of lenses of the lens is increased without restriction, the size of the lens will undoubtedly increase, which is contrary to the trend of continuous pursuit of ultra-thin portable electronic products such as smart phones

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Refer to the following Figure 1 to Figure 2D An optical imaging lens group according to Embodiment 1 of the present application is described. figure 1 A schematic structural diagram of an optical imaging lens group according to Embodiment 1 of the present application is shown.

[0071] Such as figure 1 As shown, the optical imaging lens group includes in sequence from the object side to the image side: the first lens E1, the diaphragm STO, the second lens E2, the third lens E3, the fourth lens E4, the fifth lens E5, and the sixth lens E6 , the seventh lens E7, the eighth lens E8, the ninth lens E9, the filter E10 and the imaging surface S21.

[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 positive refractive power, its object side S3 is convex, and its image side S4 is convex. The third lens E3 has positive refractive power, its object side S5 is convex, and its image s...

Embodiment 2

[0084] Refer to the following Figure 3 to Figure 4D An optical imaging lens group 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 group according to Embodiment 2 of the present application is shown.

[0085] Such as image 3 As shown, the optical imaging lens group includes in sequence from the object side to the image side: the first lens E1, the diaphragm STO, the second lens E2, the third lens E3, the fourth lens E4, the fifth lens E5, and the sixth lens E6 , the seventh lens E7, the eighth lens E8, the ninth lens E9, the filter E10 and the imaging surface S21.

[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 positive refractive power, its object side S3 ...

Embodiment 3

[0096] Refer to the following Figure 5 to Figure 6D An optical imaging lens group according to Embodiment 3 of the present application is described. Figure 5 A schematic structural diagram of an optical imaging lens group according to Embodiment 3 of the present application is shown.

[0097] Such as Figure 5 As shown, the optical imaging lens group includes in sequence from the object side to the image side: the first lens E1, the diaphragm STO, the second lens E2, the third lens E3, the fourth lens E4, the fifth lens E5, and the sixth lens E6 , the seventh lens E7, the eighth lens E8, the ninth lens E9, the filter E10 and the imaging surface S21.

[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 positive refractive power, its object side S3 is convex, and its image side S4 is concave. The third lens E3 has negative refractive power, its object side S5 is convex, and its image...

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Abstract

The invention discloses an optical imaging lens group. The optical imaging lens group sequentially comprises a first lens with focal power, a second lens, a third lens, a fourth lens, a fifth lens, asixth lens, a seventh lens, an eighth lens and a ninth lens from an object side to an image side along an optical axis. The fourth lens has negative focal power, and the image side surface of the fourth lens is a concave surface; the image side surface of the fifth lens is a convex surface; the eighth lens has positive focal power; and the distance TTL between the object side surface of the firstlens and the imaging surface of the optical imaging lens group on the optical axis, half ImgH of the diagonal length of the effective pixel region of the optical imaging lens group and the F number Fno of the optical imaging lens group satisfy the following formula: Fno*TTL / ImgH< 2.5.

Description

technical field [0001] The present application relates to the field of optical elements, in particular to an optical imaging lens group. Background technique [0002] In recent years, with the rapid development of portable electronic products such as smart phones, the competition among brands of portable electronic products such as smart phones has obviously become fierce. In order to enhance the attractiveness of their products, major brands spare no effort to invest a lot of time and money in product innovation. The camera function is one of the core functions of portable electronic products such as smart phones, and the development trend of the camera towards the characteristics of high pixel, large aperture and large image area is becoming more and more obvious. Therefore, major brands urgently need to design lenses for portable electronic products such as smart phones with higher image quality, larger aperture and larger image area to adapt to market development. [0...

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 管磊戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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