Optical system, camera module and electronic device

A technology of optical system and optical axis, applied in the direction of optics, optical components, instruments, etc.

Inactive Publication Date: 2020-06-05
JIANGXI JINGCHAO OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Based on this, it is necessary to provide an optical system, a camera module and an electronic device for the problem of how t...

Method used

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  • Optical system, camera module and electronic device
  • Optical system, camera module and electronic device
  • Optical system, camera module and electronic device

Examples

Experimental program
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no. 1 example

[0089] refer to figure 1 and figure 2 , in the first embodiment, the optical system 10 sequentially includes a first lens L1 with positive refractive power, a stop STO, a second lens L2 with positive refractive power, and a third lens L2 with negative refractive power from the object side to the image side. Lens L3, fourth lens L4 with positive refractive power, and fifth lens L5 with negative refractive power. figure 2 It includes the longitudinal spherical aberration diagram (mm), astigmatism diagram (mm) and distortion diagram (%) of the optical system 10 in the first embodiment, wherein the astigmatism diagram and distortion diagram are graphs at a wavelength of 555nm.

[0090] The object side S1 of the first lens L1 is convex at the optical axis, and the image side S2 is concave at the optical axis; the object side S1 is convex at the circumference, and the image side S2 is concave at the circumference.

[0091] The object side S3 of the second lens L2 is convex at th...

no. 2 example

[0117] refer to image 3 and Figure 4 , in the second embodiment, the optical system 10 sequentially includes a first lens L1 with negative refractive power, a stop STO, a second lens L2 with positive refractive power, and a third lens L2 with negative refractive power from the object side to the image side. Lens L3, fourth lens L4 with positive refractive power, and fifth lens L5 with negative refractive power. Figure 4 It includes the longitudinal spherical aberration diagram (mm), astigmatism diagram (mm) and distortion diagram (%) of the optical system 10 in the second embodiment, wherein the astigmatism diagram and distortion diagram are graphs at a wavelength of 555nm.

[0118] Wherein, the ordinate of the astigmatism diagram and the distortion diagram can be understood as half of the diagonal length of the effective imaging area on the imaging surface S13 of the optical system 10 , and the unit of the ordinate is mm.

[0119] The object side S1 of the first lens L1 ...

no. 3 example

[0134] refer to Figure 5 and Figure 6 , in the third embodiment, the optical system 10 sequentially includes a first lens L1 with positive refractive power, a stop STO, a second lens L2 with positive refractive power, and a third lens L2 with negative refractive power from the object side to the image side. Lens L3, fourth lens L4 with positive refractive power, and fifth lens L5 with negative refractive power. Figure 6 It includes the longitudinal spherical aberration diagram (mm), astigmatism diagram (mm) and distortion diagram (%) of the optical system 10 in the third embodiment, wherein the astigmatism diagram and distortion diagram are graphs at a wavelength of 555 nm.

[0135] Wherein, the ordinate of the astigmatism diagram and the distortion diagram can be understood as half of the diagonal length of the effective imaging area on the imaging surface S13 of the optical system 10 , and the unit of the ordinate is mm.

[0136] The object side S1 of the first lens L1 ...

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Abstract

The invention relates to an optical system, a camera module and an electronic device. The optical system includes, in order from an object side to an image side: a first lens element with refractive power having an object-side surface being convex at an optical axis and an image-side surface being concave at the optical axis; a second lens element with refractive power, wherein the object-side surface of the second lens element is convex at the optical axis; a third lens element with refractive power, wherein the image-side surface of the third lens element is concave at the optical axis; a fourth lens element with positive refraction power, the object side surface of the fourth lens element being a concave surface at the optical axis, and the image side surface of the fourth lens elementbeing a convex surface at the optical axis; a fifth lens element with negative refraction power, the object side surface of the fifth lens element being a convex surface at the optical axis, and the image side surface of the fifth lens element being a concave surface at the optical axis. The relationship is satisfied: 1 < GLD/f < 5, wherein GLD is the maximum distance from the object side surfaceof the first lens element to the image side surface of the fifth lens element in the direction parallel to the optical axis, and f is the effective focal length of the optical system. The optical system not only has the characteristic of miniaturization, but also can improve the shooting effect on long shot and close shot.

Description

technical field [0001] The invention relates to the field of optical imaging, in particular to an optical system, a camera module and an electronic device. Background technique [0002] Since the camera lens was applied to the smart phone, the performance of the camera lens has also undergone earth-shaking changes with the improvement of users' demand for mobile phone performance. Among them, the continuous improvement of the shooting effect of the camera lens has even become one of the focuses of people's expectations for technological progress. Especially with the popularization of smart phones in daily life, whether miniaturized electronic products can provide various shooting experiences, such as enabling electronic products to have excellent long-range and close-up shooting effects at the same time, has become one of the key factors for people to choose electronic products. Contents of the invention [0003] Based on this, it is necessary to provide an optical system...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/06G02B13/18
CPCG02B13/0015G02B13/0045G02B13/06G02B13/18
Inventor 刘彬彬张文燕李明邹海荣
Owner JIANGXI JINGCHAO OPTICAL CO LTD
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