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Optical image capturing system, image capturing module and electronic device

An optical imaging system and module technology, used in optics, optical components, instruments, etc., can solve the problems of long overall length, small size of electronic products, and limitations of light and thin, so as to maintain miniaturization, reduce sensitivity, and improve imaging quality. Effect

Inactive Publication Date: 2020-03-27
JIANGXI JINGCHAO OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current five-chip optical imaging system generally has a long total length in order to obtain better imaging quality, which will limit the miniaturization and thinning of electronic products

Method used

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  • Optical image capturing system, image capturing module and electronic device
  • Optical image capturing system, image capturing module and electronic device
  • Optical image capturing system, image capturing module and electronic device

Examples

Experimental program
Comparison scheme
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no. 1 example

[0065] see Figure 1 to Figure 4 , from the object side to the image side, the optical imaging system 10 of the first embodiment sequentially includes a stop STO, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and an infrared filter Light sheet L6.

[0066]The first lens L1 has positive refractive power and is made of plastic. The object side S1 is convex, and the image side S2 is concave at the optical axis and convex at the circumference, both of which are aspherical. The second lens L2 has negative refractive power and is made of plastic. The object side S3 is convex at the optical axis and concave at the circumference, and the image side S4 is concave and aspherical. The third lens L3 has positive refractive power and is made of plastic. The object side S5 is concave, and the image side S6 is convex, both of which are aspherical. The fourth lens L4 has positive refractive power and is made of plastic. The object side S7 is concave, ...

no. 2 example

[0076] see Figure 5 to Figure 8 , from the object side to the image side, the optical imaging system 10 of the second embodiment sequentially includes a stop STO, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and an infrared filter Light sheet L6.

[0077] The first lens L1 has positive refractive power and is made of plastic. The object side S1 is convex, and the image side S2 is concave at the optical axis and convex at the circumference, both of which are aspherical. The second lens L2 has a negative refractive power and is made of plastic. The object side S3 is convex, and the image side S4 is concave, both of which are aspherical. The third lens L3 has positive refractive power and is made of plastic. The object side S5 is convex at the optical axis and concave at the circumference, and the image side S6 is convex and aspherical. The fourth lens L4 has positive refractive power and is made of plastic. The object side S7 is concav...

no. 3 example

[0088] see Figure 9 to Figure 12 , from the object side to the image side, the optical imaging system 10 of the third embodiment sequentially includes a stop STO, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and an infrared filter Light sheet L6.

[0089] The first lens L1 has positive refractive power and is made of plastic. The object side S1 is convex, and the image side S2 is concave at the optical axis and convex at the circumference, both of which are aspherical. The second lens L2 has negative refractive power and is made of plastic. The object side S3 is convex at the optical axis and concave at the circumference, and the image side S4 is concave and aspherical. The third lens L3 has positive refractive power and is made of plastic. The object side S5 is convex at the optical axis and concave at the circumference, and the image side S6 is convex and aspherical. The fourth lens L4 has positive refractive power and is made of p...

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Abstract

The invention discloses an optical imaging system, an image capturing module and an electronic device. The optical image capturing system includes, in order from an object side to an image side, a first lens element with positive refractive power, a second lens element with negative refractive power, a third lens element with positive refractive power, a fourth lens element with positive refractive power, and a fifth lens element with negative refractive power. The first lens element has a convex object-side surface and a concave image-side surface at the optical axis. The second lens elementhas a convex object-side surface at the optical axis and a concave image-side surface. The image side surface of the third lens is a convex surface. The fourth lens element has a concave object-side surface and a convex image-side surface. The fifth lens element has a concave object-side surface at the optical axis and a concave image-side surface at the optical axis. The following conditional expressions are satisfied: 0 (T12 / (CT1 + CT2) < 0.08, T12 is the air gap between the first lens and the second lens on the optical axis, and CT1 and CT2 are the center thickness of the first lens and thecenter thickness of the second lens respectively. According to the optical imaging system, the image capturing module and the electronic device, the imaging quality is high, and miniaturization can be achieved.

Description

technical field [0001] The invention relates to optical imaging technology, in particular to an optical imaging system, an imaging module and an electronic device. Background technique [0002] The current five-chip optical imaging system generally has a long total length in order to obtain better imaging quality, which will limit the miniaturization and thinning of electronic products. Therefore, there is an urgent need for an optical imaging system with good imaging quality and miniaturization. Contents of the invention [0003] Embodiments of the present invention provide an optical imaging system, an imaging module, and an electronic device. [0004] The optical imaging system according to the embodiment of the present invention includes a first lens with positive refractive power, a second lens with negative refractive power, a third lens with positive refractive power, and a fourth lens with positive refractive power from the object side to the image side. lens and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/18
CPCG02B13/0045
Inventor 邹海荣刘彬彬谢晗
Owner JIANGXI JINGCHAO OPTICAL CO LTD