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Optical system, camera module and electronic device

An optical system and related technology, applied in the field of optical system, camera module and electronic device, can solve the problem of small field of view of the camera module

Inactive Publication Date: 2021-04-27
TIANJIN OFILM OPTO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Based on this, it is necessary to provide an optical system, a camera module and an electronic device aimed at how to solve the problem of a small field of view of the camera module

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0106] refer to figure 1 and figure 2 , in the first embodiment, the optical system 10 sequentially includes a first lens L1 with negative refractive power, a second lens L2 with negative refractive power, a third lens L3 with positive refractive power, and a light lens from the object side to the image side. Stop STO, a fourth lens L4 with negative refractive power, and a fifth lens L5 with positive refractive power, wherein the fourth lens L4 is cemented with the fifth lens L5. figure 2 It includes the spherical aberration diagram (mm), astigmatism diagram (mm) and distortion diagram (%) of the optical system 10 in the first embodiment, wherein the astigmatism diagram and distortion diagram are data diagrams at a wavelength of 546.07nm.

[0107] The object side S1 of the first lens L1 is convex, and the image side S2 is concave.

[0108] The object side S3 of the second lens L2 is concave, and the image side S4 is concave.

[0109] The object side S5 of the third lens L...

no. 2 example

[0136] refer to image 3 with Figure 4 , in the second embodiment, the optical system 10 sequentially includes a first lens L1 with negative refractive power, a second lens L2 with negative refractive power, a third lens L3 with positive refractive power, and a light lens from the object side to the image side. Stop STO, a fourth lens L4 with negative refractive power, and a fifth lens L5 with positive refractive power, wherein the fourth lens L4 is cemented with the fifth lens L5. Figure 4 It includes the spherical aberration diagram (mm), astigmatism diagram (mm) and distortion diagram (%) of the optical system 10 in the second embodiment, wherein the astigmatism diagram and distortion diagram are data diagrams at a wavelength of 546.07nm.

[0137] The object side S1 of the first lens L1 is convex, and the image side S2 is concave.

[0138] The object side S3 of the second lens L2 is concave, and the image side S4 is concave.

[0139] The object side S5 of the third len...

no. 3 example

[0155] refer to Figure 5 with Image 6 , in the third embodiment, the optical system 10 sequentially includes a first lens L1 with a negative refractive power, a second lens L2 with a negative refractive power, a third lens L3 with a positive refractive power, and an optical lens from the object side to the image side. Stop STO, a fourth lens L4 with negative refractive power, and a fifth lens L5 with positive refractive power, wherein the fourth lens L4 is cemented with the fifth lens L5. Image 6 The spherical aberration diagram (mm), astigmatism diagram (mm) and distortion diagram (%) of the optical system 10 in the third embodiment are included, wherein the astigmatism diagram and distortion diagram are data diagrams at a wavelength of 546.07 nm.

[0156] The object side S1 of the first lens L1 is convex, and the image side S2 is concave.

[0157] The object side S3 of the second lens L2 is concave, and the image side S4 is concave.

[0158] The object side S5 of the t...

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Abstract

The invention relates to an optical system, a camera module and an electronic device. The optical system sequentially comprises: a first lens with negative refractive power, wherein the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface; a second lens with negative refractive power, wherein the image side surface of the second lens is a concave surface; a third lens with positive refractive power, wherein both the object side surface and the image side surface of the third lens are convex surfaces; a fourth lens with negative refractive power, wherein the image side surface of the fourth lens is a concave surface; a fifth lens with positive refractive power, wherein both the object side surface and the image side surface of the fifth lens are convex surfaces; ad a diaphragm arranged between a photographed object and the fourth lens, wherein the first lens, the second lens, the third lens, the fourth lens and the fifth lens are sequentially arranged from an object side to an image side, the optical system satisfies the following relationship: FOV / CRA is more than or equal to 8.5, the FOV is the maximum field angle of the optical system in the diagonal direction of the imaging surface, and the CRA is the principal ray incident angle of the optical system at the maximum field. According to the invention, when the refractive power configuration, the surface configuration and the relational expression are satisfied, miniaturization and wide-angle design of the optical system are facilitated.

Description

technical field [0001] The invention relates to the field of optical imaging, in particular to an optical system, a camera module and an electronic device. Background technique [0002] Generally, electronic devices such as vehicle-mounted equipment, monitoring equipment, and medical equipment have camera functions, but they often fail to obtain expected images because the camera field of view is too small, which affects users' use. For example, for a general car with a camera function, in addition to the captured image, there are still large areas around the car that cannot be observed. Contents of the invention [0003] Based on this, it is necessary to provide an optical system, a camera module and an electronic device for how to solve the problem of a small field of view of the camera module. [0004] An optical system, sequentially comprising from the object side to the image side: [0005] A first lens with negative refractive power, the object side of the first le...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/06G02B13/18
CPCG02B13/0045G02B13/006G02B13/06G02B13/18
Inventor 乐宇明俞炳泽兰宾利
Owner TIANJIN OFILM OPTO ELECTRONICS CO LTD