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Optical imaging lens

An optical imaging lens and lens technology, applied in optics, optical components, instruments, etc., can solve problems such as difficulty in realizing large image surface characteristics, and achieve the effect of optimizing optical power, surface shape, and large imaging surface.

Pending Publication Date: 2020-01-03
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, traditional imaging lenses with a small number of lenses are difficult to achieve large image area characteristics, and cannot better meet the current requirements of people for daily shooting

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] 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.

[0068] like figure 1 As shown, the optical imaging lens includes sequentially from the object side to the image side along the optical axis: 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 Lens E6, seventh lens E7, eighth lens E8, filter E9 and imaging surface S19.

[0069]The first lens E1 has negative 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 posit...

Embodiment 2

[0081] 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.

[0082] like image 3 As shown, the optical imaging lens includes sequentially from the object side to the image side along the optical axis: 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 Lens E6, seventh lens E7, eighth lens E8, filter E9 and imaging surface S19.

[0083] The first lens E1 has negative 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 ...

Embodiment 3

[0094] 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.

[0095] like Figure 5 As shown, the optical imaging lens includes sequentially from the object side to the image side along the optical axis: 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 Lens E6, seventh lens E7, eighth lens E8, filter E9 and imaging surface S19.

[0096] 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 concave, and its image side S6 is concave. The fourth lens E4 has negati...

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Abstract

The application discloses an optical imaging lens. The optical imaging lens comprises a first optical lens with focal power; a second optical lens with positive optical power; a third lens with negative optical power; a fourth optical lens with optical power; a fifth optical lens with optical power; a sixth optical lens with optical power; a seventh lens with positive optical power; and an eighthlens with the negative optical power, wherein the first optical lens, the second optical lens, the third optical lens, the fourth optical lens, the fifth optical lens, the sixth optical lens, the seventh optical lens and the eight optical lens are arranged in order from an object side to an image side along an optical axis; the total effective focal length f of the optical imaging lens and the maximum field angle FOV of the optical imaging lens satisfy a formula that fxTAN (FOV / 2) is more 4.0mm, and a total effective focal length f of the optical imaging lens, a center thickness CT7 of the seventh optical lens on the optical axis, and the center thickness CT8 of the eighth optical lens on the optical axis satisfy the formula that f / (CT7+ CT8) is not less than 5.0.

Description

technical field [0001] The present application relates to an optical imaging lens, in particular to an optical imaging lens including eight lenses. Background technique [0002] In recent years, with the rapid development of portable electronic products such as smart phones and tablet computers, people have higher and higher requirements for imaging lenses mounted on portable electronic devices. On the one hand, people are pursuing miniaturization and thinning of portable electronic products. On the other hand, people require that the imaging lens mounted on the portable electronic device also has a higher imaging quality in a dark environment. This requires the supporting optical imaging lens to meet the requirements of miniaturization and high imaging quality in dark environments. In addition, traditional imaging lenses with a small number of lenses are difficult to achieve large image area characteristics, and cannot better meet the current requirements of people for da...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/06G02B13/18
CPCG02B13/0015G02B13/0045G02B13/06G02B9/64
Inventor 黄林吕赛锋戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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