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Camera lens group

A camera lens, lens technology, applied in optical components, optics, instruments, etc., can solve problems such as poor photographing effect, and achieve the effect of short optical total length and high imaging quality

Pending Publication Date: 2019-11-15
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the limitation of the size of the lens itself installed in portable electronic products such as smartphones, the camera function of the lens often has some defects, such as the aperture is generally F2.0
However, too small aperture often leads to poor photo effects in dark environments such as night, so large aperture has become the goal pursued by many mobile phone manufacturers.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] 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.

[0078] 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 L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, The seventh lens L7, the eighth lens L8, the filter L9 and the imaging surface S19.

[0079] The first lens L1 has positive refractive power, its object side S1 is convex, and its image side S2 is concave. The second lens L2 has negative refractive power, its object side S3 is convex, and its image side S4 is concave. The third lens L3 has positive refractive power, its object side S5 is convex, and its image side S6 is concave. The fourth lens L4 has positive refracti...

Embodiment 2

[0092] 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.

[0093] 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 L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, The seventh lens L7, the eighth lens L8, the filter L9 and the imaging surface S19.

[0094] The first lens L1 has positive refractive power, its object side S1 is convex, and its image side S2 is concave. The second lens L2 has negative refractive power, its object side S3 is convex, and its image side S4 is concave. The third lens ...

Embodiment 3

[0103] 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.

[0104] 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 L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, The seventh lens L7, the eighth lens L8, the filter L9 and the imaging surface S19.

[0105] The first lens L1 has positive refractive power, its object side S1 is convex, and its image side S2 is concave. The second lens L2 has negative refractive power, its object side S3 is convex, and its image side S4 is concave. The third lens L3 has negative refractive power, the object side S5 is concave, and the image side S6 is concave. The fourth lens L4 has positive refractive...

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Abstract

The invention discloses a camera lens group. The camera lens group 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 focal power and an eighth lens with focal power along the optical axis from the object side to the image side in sequence, wherein the image side surface of the sixth lens is a concave surface; the image side surface of the seventh lens is a convex surface. A half of diagonal line length ImgH in the effective pixel region on the imaging surface of the camera lens group and F number Fno of the camera lens group meet the condition that ImgH / Fno is larger than 3.5 mm.

Description

technical field [0001] The present application relates to the field of optical elements, in particular, to an imaging lens group. Background technique [0002] At present, portable electronic products such as smart phones are very popular, and consumers have higher and higher requirements for the camera function of mobile phones. With the performance improvement and size reduction of charge-coupled device (CCD) and complementary metal-oxide semiconductor (CMOS) image sensors, the corresponding camera lenses also need to meet high-pixel , Miniaturization requirements. [0003] Due to the limitation of the size of the lens installed in portable electronic products such as smart phones, the camera function of the lens often has some defects, such as the aperture is generally F2.0. However, too small aperture often leads to poor photo effects in dark environments such as night, so large aperture has become the goal pursued by many mobile phone manufacturers. The size of the i...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045
Inventor 周楹陈念徐标张凯元戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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