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Imaging system, camera module and electronic device

An imaging system and image-side technology, applied in optical components, optics, instruments, etc., can solve the problems of insufficient field of view, limited shooting range, and insufficient imaging surface, and achieve wide-angle, shortened overall length, and large like high effect

Active Publication Date: 2021-12-31
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 imaging surface of the endoscopic lens currently used in medical electronics is not large enough, and the field of view cannot meet the demand, resulting in a limited shooting range

Method used

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

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Experimental program
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Effect test

specific Embodiment 1

[0086] For a schematic structural diagram of the imaging system 10 of the embodiment of the present application, see figure 1 , the imaging system 10 includes a first lens 110 , a second lens 120 , a stop STO, a third lens 130 , a fourth lens 140 and a fifth lens 150 arranged sequentially along the optical axis from the object side to the image side. The first lens 110 has a negative refractive power, the second lens 120 has a positive refractive power, the third lens 130 has a positive refractive power, the fourth lens 140 has a positive refractive power, and the fifth lens 150 has a negative refractive power. The object side S1 of the first lens 110 is convex at the near optical axis, and the image side S2 of the first lens 110 is concave at the near optical axis. The object side S3 of the second lens 120 is convex at the near optical axis, and the image side S4 of the second lens 120 is concave at the near optical axis. The object side S5 of the third lens 130 is concave a...

specific Embodiment 2

[0101] For a schematic structural diagram of the imaging system 10 of the embodiment of the present application, see image 3 , the imaging system 10 includes a first lens 110 , a second lens 120 , a stop STO, a third lens 130 , a fourth lens 140 and a fifth lens 150 arranged sequentially along the optical axis from the object side to the image side. The first lens 110 has a negative refractive power, the second lens 120 has a positive refractive power, the third lens 130 has a positive refractive power, the fourth lens 140 has a positive refractive power, and the fifth lens 150 has a negative refractive power. The object side S1 of the first lens 110 is convex at the near optical axis, and the image side S2 of the first lens 110 is concave at the near optical axis. The object side S3 of the second lens 120 is convex at the near optical axis, and the image side S4 of the second lens 120 is convex at the near optical axis. The object side S5 of the third lens 130 is concave at...

specific Embodiment 3

[0113] For a schematic structural diagram of the imaging system 10 of the embodiment of the present application, see Figure 5, the imaging system 10 includes a first lens 110 , a second lens 120 , a stop STO, a third lens 130 , a fourth lens 140 and a fifth lens 150 arranged sequentially along the optical axis from the object side to the image side. The first lens 110 has a negative refractive power, the second lens 120 has a positive refractive power, the third lens 130 has a positive refractive power, the fourth lens 140 has a positive refractive power, and the fifth lens 150 has a negative refractive power. The object side S1 of the first lens 110 is convex at the near optical axis, and the image side S2 of the first lens 110 is concave at the near optical axis. The object side S3 of the second lens 120 is convex at the near optical axis, and the image side S4 of the second lens 120 is concave at the near optical axis. The object side S5 of the third lens 130 is concave a...

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Abstract

The invention discloses an imaging system, a camera module and an electronic device. The imaging system sequentially comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens from an object side to an image side along an optical axis. The imaging system satisfies the following conditional expression: 2 <|f12 / f345| < 10, wherein f12 is a combined effective focal length of the first lens and the second lens, and f345 is a combined effective focal length of the third lens, the fourth lens, and the fifth lens. On the premise of ensuring the miniaturization and thinness of the imaging system, the imaging system has the characteristic of large wide angle.

Description

technical field [0001] The present application relates to the technical field of optical imaging, in particular to an imaging system, a camera module and electronic equipment. Background technique [0002] In recent years, with China's aging trend deepening, environmental problems becoming more and more serious, and the incidence of digestive tract and respiratory diseases increasing, the demand for endoscopic examination is gradually increasing. However, the imaging surface of the endoscopic lens currently used in medical electronics is not large enough, and the field of view cannot meet the demand, resulting in a limited shooting range. Therefore, a camera lens with both a large field of view and miniaturization is a problem to be solved at present. Contents of the invention [0003] The embodiment of the present application provides an imaging system, a camera module, and an electronic device, which can have a large field of view and a large image height under the prem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18G02B13/06
CPCG02B13/0015G02B13/0045G02B13/06G03B30/00
Inventor 乐宇明周芮朱志鹏
Owner JIANGXI JINGCHAO OPTICAL CO LTD
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