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Optical imaging system, image capturing module and electronic device

An optical imaging system and imaging surface technology, applied in optics, optical components, instruments, etc., can solve the problems of large aperture, difficulty in both miniaturization and high imaging quality

Inactive Publication Date: 2022-04-12
NANCHANG OUFEI BIOLOGICAL IDENTIFICATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, there are many five-piece wide-angle lenses mounted on the product. This lens has a large aperture and a large field of view, but it is difficult to meet the requirements of miniaturization and high imaging quality. Therefore, it is necessary to design a miniaturization, good imaging quality and A lens with a large aperture to meet the user's experience

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0104] See figure 1 , in the optical imaging system 10 in this embodiment, from the object side to the image side, it includes a first lens L1 with a negative refractive power, a second lens L2 with a positive refractive power, a stop STO, and a third lens with a negative refractive power. Lens L3, a fourth lens L4 with positive refractive power, a fifth lens L5 with positive refractive power, and a filter L6.

[0105] The object side S1 of the first lens L1 is convex at the near optical axis, and the image side S2 of the first lens L1 is concave at the near optical axis. The object side S3 of the second lens L2 is convex at the near optical axis, and the image side S4 of the second lens L2 is convex at the near optical axis. The object side S6 of the third lens L3 is concave at the near optical axis, and the image side S7 of the third lens L3 is concave at the near optical axis. The object side S8 of the fourth lens L4 is convex at the near optical axis, and the image side ...

no. 2 example

[0120] See image 3 , in the optical imaging system 10 in this embodiment, from the object side to the image side, it includes a first lens L1 with a negative refractive power, a second lens L2 with a positive refractive power, a stop STO, and a third lens with a negative refractive power. The lens L3, the fourth lens L4 with positive refractive power, the fifth lens L5 with positive refractive power, and the filter L6.

[0121] The object side S1 of the first lens L1 is convex at the near optical axis, and the image side S2 of the first lens L1 is concave at the near optical axis. The object side S3 of the second lens L2 is convex at the near optical axis, and the image side S4 of the second lens L2 is convex at the near optical axis. The object side S6 of the third lens L3 is convex at the near optical axis, and the image side S7 of the third lens L3 is concave at the near optical axis. The object side S8 of the fourth lens L4 is convex at the near optical axis, and the im...

no. 3 example

[0132] see Figure 5 , in the optical imaging system 10 in this embodiment, from the object side to the image side, it includes a first lens L1 with a negative refractive power, a second lens L2 with a positive refractive power, a stop STO, and a third lens with a positive refractive power. The lens L3, the fourth lens L4 with positive refractive power, the fifth lens L5 with positive refractive power, and the filter L6.

[0133] The object side S1 of the first lens L1 is concave at the near optical axis, and the image side S2 of the first lens L1 is concave at the near optical axis. The object side S3 of the second lens L2 is convex at the near optical axis, and the image side S4 of the second lens L2 is convex at the near optical axis. The object side S6 of the third lens L3 is convex at the near optical axis, and the image side S7 of the third lens L3 is convex at the near optical axis. The object side S8 of the fourth lens L4 is convex at the near optical axis, and the i...

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Abstract

The invention discloses an optical imaging system, an image capturing module and an electronic device. The optical imaging system sequentially comprises a first lens with negative refractive power, a second lens with positive refractive power, an aperture, a third lens with negative or positive refractive power, a fourth lens with positive refractive power and a fifth lens with positive refractive power from an object side to an image side. The optical imaging system meets the following conditional expressions: 1.6 lt; p1SD * FNO / ImgHlt; 2.7, 2.7; wherein P1SD is the maximum effective half aperture of the object side surface of the first lens, y is the image height corresponding to the maximum field angle of the optical imaging system, and FNO is the aperture number of the optical imaging system. According to the optical imaging system, the radial size of the object side surface of the first lens is reduced while a large aperture is realized, so that a small-head design is realized, the size of an opening in a product screen can be reduced, and the screen-to-body ratio of the product is further improved.

Description

technical field [0001] The present application relates to the technical field of optical imaging, in particular to an optical imaging system, an imaging module and an electronic device. Background technique [0002] In recent years, 3D infrared sensing lenses have been widely used on mobile phones and non-mobile products. On mobile phones, they are mainly front-facing lenses and 3DToF applications, such as gesture applications, structured light, etc.; on non-mobile products, they are mainly used in Door locks, sweepers and vehicles, etc. Generally, there are many five-piece wide-angle lenses mounted on the product. This lens has a large aperture and a large field of view, but it is difficult to meet the requirements of miniaturization and high imaging quality. Therefore, it is necessary to design a miniaturization, good imaging quality and A lens with a large aperture to satisfy the user experience. Contents of the invention [0003] In view of the above, it is necessary...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/18G02B13/06
Inventor 关赛新
Owner NANCHANG OUFEI BIOLOGICAL IDENTIFICATION TECH
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