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Lens group, camera module and electronic device

A lens group and lens technology, applied in optical components, optics, instruments, etc., can solve problems such as low resolution, reduced user experience, and weak perspective, and achieve the effect of improving resolution and imaging quality.

Active Publication Date: 2020-11-27
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the pictures taken by the existing super wide-angle lens have weak sense of perspective and low resolution, which directly reduces the user experience.

Method used

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  • Lens group, camera module and electronic device
  • Lens group, camera module and electronic device
  • Lens group, camera module and electronic device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0155] see figure 1 , the first lens L1 has a negative refractive index, the second lens L2 has a positive refractive index, the third lens L3 has a negative refractive index, the fourth lens L4 has a positive refractive index, the fifth lens L5 has a refractive index, and the sixth lens L6 has a Refractive index, wherein, the refractive index of the fifth lens L5 can be a positive refractive index or a negative refractive index, and the refractive index of the sixth lens L6 can be a positive refractive index or a negative refractive index, which can be considered according to actual conditions , is not limited here.

[0156] see Figure 1 to Figure 4 , the lens group 10 satisfies the conditions of the following table:

[0157] Table 1

[0158] conditional formula Embodiment one R2 / R3 / |R8| 0.53 (D3 / f3)×100 -4.31 f4 / f5 -0.32 T2 / T1 0.24 R3 / R10 0.06 |R8| / f 0.40 R10 / R4 -16.82 vd1 56.44 (T4 / f)×100 3.57 (R2 / T1...

Embodiment 2

[0165] see Figure 5 , the first lens L1 has a negative refractive index, the second lens L2 has a positive refractive index, the third lens L3 has a negative refractive index, the fourth lens L4 has a positive refractive index, the fifth lens L5 has a refractive index, and the sixth lens L6 has a Refractive index, wherein, the refractive index of the fifth lens L5 can be a positive refractive index or a negative refractive index, and the refractive index of the sixth lens L6 can be a positive refractive index or a negative refractive index, which can be considered according to actual conditions , is not limited here.

[0166] see Figure 5 to Figure 8 , the lens group 10 satisfies the conditions of the following table:

[0167] Table 4

[0168] conditional formula Embodiment two R2 / R3 / |R8| 0.53 (D3 / f3)×100 -3.59 f4 / f5 -0.49 T2 / T1 0.09 R3 / R10 0.27 |R8| / f 0.44 R10 / R4 -2.32 vd1 56.44 (T4 / f)×100 5.98 (R2 / T1...

Embodiment 3

[0175] see Figure 9 , the first lens L1 has a negative refractive index, the second lens L2 has a positive refractive index, the third lens L3 has a negative refractive index, the fourth lens L4 has a positive refractive index, the fifth lens L5 has a refractive index, and the sixth lens L6 has a Refractive index, wherein, the refractive index of the fifth lens L5 can be a positive refractive index or a negative refractive index, and the refractive index of the sixth lens L6 can be a positive refractive index or a negative refractive index, which can be considered according to actual conditions , is not limited here.

[0176] see Figure 9 to Figure 12 , the lens group 10 satisfies the conditions of the following table:

[0177] Table 7

[0178] conditional formula Embodiment Three R2 / R3 / |R8| 0.45 (D3 / f3)×100 -3.19 f4 / f5 -0.41 T2 / T1 0.14 R3 / R10 0.11 |R8| / f 0.43 R10 / R4 -6.95 vd1 56.44 (T4 / f)×100 8.23 (R2...

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Abstract

The invention discloses a lens group, a camera module and an electronic device. The lens group comprises, from an object side to an image side, a first lens having a negative refractive index and withan object side surface being a plane, a second lens having a positive refractive index, a third lens having a negative refractive index, a fourth lens having a positive refractive index, a fifth lenshaving a refractive index, and a sixth lens having a refractive index. The lens group satisfies the following relational expressions: Fno < 3.0, TTL / ih < 2.2, and a field angle omega > 150.0 degrees,wherein Fno is the aperture number of the lens group, TTL is the total length of the lens group, and ih is the image plane height of the lens group. According to the lens group provided by the embodiment of the invention, through reasonable lens configuration, the field angle can be greater than 150.0 degrees, so that the lens group has an ultra-large field angle, a relatively strong perspectiveeffect can be achieved when a photographed object is photographed, and a photographed image has relatively large visual impact force.

Description

technical field [0001] The present application relates to optical imaging technology, in particular to a lens group, a camera module and an electronic device. Background technique [0002] At present, ultra-large wide-angle lenses (field of view ω over 100°) are popular among consumers for their large field of view and depth of field, and have gradually become one of the must-have lenses for mobile phones along with wide-angle lenses (main camera) and telephoto lenses. [0003] However, the pictures taken by the existing super wide-angle lens have weak sense of perspective and low resolution, which directly reduces user experience. Contents of the invention [0004] Embodiments of the present application provide a lens group, a camera module, and an electronic device. [0005] In the lens group according to the embodiment of the present application, the lens group includes a first lens with a negative refractive index from the object side to the image side, the object sid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/06G02B13/18
CPCG02B13/0045G02B13/06G02B13/18
Inventor 韦怡
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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