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Optical system, image capturing module, electronic device and carrier

An optical system and optical axis technology, applied in optics, optical components, instruments, etc., can solve the problems affecting the optical imaging quality of the lens, and achieve the effect of small changes in overall performance, natural overall layout, and compact structure

Pending Publication Date: 2022-07-29
ALIPAY (HANGZHOU) INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the related art, the lens on the market is easy to change the field of view angle of the lens due to the change of external temperature, thus affecting the optical imaging quality of the lens

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] Please refer to Figure 1 to Figure 5 As shown, the optical system 100 includes a diaphragm STO, a first lens 110 , a second lens 120 , a third lens 130 , a fourth lens 140 , and a filter, which are sequentially arranged along the optical axis of the optical system 100 from the object side to the image side. 150 and the imaging plane S11.

[0084] The first lens 110 has positive 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 convex at the near optical axis.

[0085] The second lens 120 has a positive refractive power, the object side S3 of the second lens 120 is concave at the near optical axis, and the image side S4 of the second lens 120 is convex at the near optical axis.

[0086] The third lens 130 has positive refractive power, the object side S5 of the third lens 130 is concave at the near optical axis, and the image side S6 of the third lens 130 is convex at the near o...

Embodiment 2

[0108] Please refer to Figure 6 to Figure 10 As shown, the optical system 100 includes a diaphragm STO, a first lens 110 , a second lens 120 , a third lens 130 , a fourth lens 140 , and a filter, which are sequentially arranged along the optical axis of the optical system 100 from the object side to the image side. 150 and the imaging plane S11.

[0109] The first lens 110 has positive 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 convex at the near optical axis.

[0110] The second lens 120 has a positive refractive power, the object side S3 of the second lens 120 is concave at the near optical axis, and the image side S4 of the second lens 120 is convex at the near optical axis.

[0111] The third lens 130 has positive refractive power, the object side S5 of the third lens 130 is concave at the near optical axis, and the image side S6 of the third lens 130 is convex at the near ...

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Abstract

An embodiment of the present specification discloses an optical system, an image capturing module, an electronic device, and a carrier, the optical system including a first lens, a second lens, a third lens, and a fourth lens arranged in order from an object side to an image side along an optical axis, the first lens having positive refractive power, an object-side surface being convex in a paraxial region thereof, an image-side surface being convex in a paraxial region thereof, and a fourth lens having negative refractive power. The second lens element with positive refractive power has a concave object-side surface in a paraxial region thereof and a convex image-side surface in a paraxial region thereof, the third lens element with positive refractive power has a concave object-side surface in a paraxial region thereof and a convex image-side surface in a paraxial region thereof, and the fourth lens element with negative refractive power has a convex object-side surface in a paraxial region thereof and a concave image-side surface in a paraxial region thereof. The effective focal length of the optical system is f, the distance from the object side face of the first lens to the imaging face to the optical axis is TTL, and f and TTL meet the conditional expression that 0.5 < f / TTL < 0.7. According to the design, the possibility of field angle change caused by temperature can be effectively reduced, so that the optical imaging quality of the optical system is improved.

Description

technical field [0001] The embodiments of this specification relate to the technical field of optical imaging, and in particular, to an optical system, an imaging module, an electronic device, and a carrier. Background technique [0002] In the related art, the lens on the market is prone to change the field of view angle of the lens due to changes in the external temperature, thereby affecting the optical imaging quality of the lens. Therefore, how to effectively reduce the influence of the change of the field of view angle of the lens due to the influence of temperature has become an urgent problem to be solved. SUMMARY OF THE INVENTION [0003] The embodiments of this specification provide an optical system, an imaging module, an electronic device, and a carrier, which can effectively reduce the possibility of a change in the field of view angle caused by temperature, so as to improve the optical imaging quality of the optical system. [0004] In a first aspect, an emb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0015G02B13/004G03B30/00
Inventor 杨小威张兼郑伟军高岩滕海
Owner ALIPAY (HANGZHOU) INFORMATION TECH CO LTD