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Optical system, lens module and electronic equipment

An optical system and lens technology, applied in the field of optical imaging, can solve the problems of increasing the volume of the optical system

Active Publication Date: 2022-04-29
JIANGXI JINGCHAO OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the increase in the number of lenses will lead to an increase in the volume of the optical system

Method used

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  • Optical system, lens module and electronic equipment
  • Optical system, lens module and electronic equipment
  • Optical system, lens module and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0050] Please refer to Figure 1a with Figure 1b , the optical system of this embodiment, from the object side to the image side, includes:

[0051] The first lens L1 has a negative refractive power. The object side S1 of the first lens L1 is convex at the near optical axis 101, and the image side S2 is concave at the near optical axis 101; the object side S1 of the first lens L1 is at the near circumference It is a convex surface, and the image side S2 is concave near the circumference.

[0052] The second lens L2 has negative refracting power. The object side S3 of the second lens L2 is convex at the near optical axis 101, and the image side S4 is concave at the near optical axis 101; the object side S3 of the second lens L2 is at the near circumference It is a convex surface, and the side surface S4 is concave near the circumference.

[0053] The third lens L3 has a positive refracting power, the object side S5 of the third lens L3 is concave at the near optical axis 101...

no. 2 example

[0074] Please refer to Figure 2a with Figure 2b , the optical system of this embodiment, from the object side to the image side, includes:

[0075] The first lens L1 has a negative refractive power. The object side S1 of the first lens L1 is convex at the near optical axis 101, and the image side S2 is concave at the near optical axis 101; the object side S1 of the first lens L1 is at the near circumference It is a convex surface, and the image side S2 is concave near the circumference.

[0076] The second lens L2 has negative refracting power. The object side S3 of the second lens L2 is convex at the near optical axis 101, and the image side S4 is concave at the near optical axis 101; the object side S3 of the second lens L2 is at the near circumference It is a convex surface, and the side surface S4 is concave near the circumference.

[0077] The third lens L3 has positive refraction power, the object side S5 of the third lens L3 is convex at the near optical axis 101, ...

no. 3 example

[0093] Please refer to Figure 3a with Figure 3b , the optical system of this embodiment, from the object side to the image side, includes:

[0094] The first lens L1 has a negative refractive power. The object side S1 of the first lens L1 is convex at the near optical axis 101, and the image side S2 is concave at the near optical axis 101; the object side S1 of the first lens L1 is at the near circumference It is a convex surface, and the image side S2 is concave near the circumference.

[0095] The second lens L2 has negative refracting power. The object side S3 of the second lens L2 is convex at the near optical axis 101, and the image side S4 is concave at the near optical axis 101; the object side S3 of the second lens L2 is at the near circumference It is a convex surface, and the side surface S4 is concave near the circumference.

[0096] The third lens L3 has a positive refracting power, the object side S5 of the third lens L3 is concave at the near optical axis 10...

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Abstract

An optical system, a lens module and an electronic device, the optical system comprising eight lenses with meandering force and satisfying the relational expression: the optical system satisfies the relational expression: 0.5 mmlt; f / tan (HFOV) lt; 1.5 mm; wherein f is the effective focal length of the optical system, and tan (HFOV) is the tangent value of the maximum half field angle. According to the optical system, the lens module and the electronic equipment provided by the embodiment of the invention, the requirements of miniaturization and a large field angle can be met.

Description

technical field [0001] The invention belongs to the technical field of optical imaging, and in particular relates to an optical system, a lens module and electronic equipment. Background technique [0002] As one of the important modules for obtaining image information, with the rapid improvement of people's living standards and the rapid development of science and technology, the lens is not only required to be thinner and smaller, but also required to achieve a larger shooting range. By adding the number of lenses to the lens, the aberration can be effectively corrected, which in turn helps the lens to obtain a larger field of view. However, an increase in the number of lenses leads to an increase in the volume of the optical system. Therefore, how to achieve the characteristics of a large field of view while maintaining the miniaturization of the optical system has become one of the themes and goals that the current lens design researchers have been studying. Contents ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18G02B5/20
CPCG02B13/0045G02B13/18G02B5/208G03B30/00
Inventor 华露杨健李明
Owner JIANGXI JINGCHAO OPTICAL CO LTD
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