Optical system, camera module and electronic equipment

An optical system and relational technology, applied in optics, optical components, instruments, etc.

Active Publication Date: 2021-02-12
JIANGXI JINGCHAO OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide an optical system, a camera module

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0090] refer to figure 1 and figure 2 , in the first embodiment, the optical system 10 sequentially includes an aperture stop STO, a first lens L1 with positive refractive power, a second lens L2 with negative refractive power, and a second lens L2 with positive refractive power from the object side to the image side. Three lenses L3, a fourth lens L4 with positive refractive power, a fifth lens L5 with positive refractive power, and a sixth lens L6 with negative refractive power. figure 2 It includes the longitudinal spherical aberration diagram, astigmatism diagram and distortion diagram of the optical system 10 in the first embodiment, wherein the reference wavelength of the astigmatism diagram and distortion diagram is 587.56 nm.

[0091] The object side S1 of the first lens L1 is convex at the paraxial position, and the image side S2 is concave at the paraxial position; the object side S1 is convex at the circumference, and the image side S2 is convex at the circumfere...

no. 2 example

[0121] refer to image 3 and Figure 4 , in the second embodiment, the optical system 10 includes an aperture stop STO, a first lens L1 with positive refractive power, a second lens L2 with negative refractive power, and a first lens L2 with positive refractive power from the object side to the image side. Three lenses L3, a fourth lens L4 with negative refractive power, a fifth lens L5 with positive refractive power, and a sixth lens L6 with negative refractive power. Figure 4 It includes the longitudinal spherical aberration diagram, astigmatism diagram and distortion diagram of the optical system 10 in the second embodiment, wherein the reference wavelength of the astigmatism diagram and distortion diagram is 587.56 nm.

[0122] The object side S1 of the first lens L1 is convex at the paraxial position, and the image side S2 is concave at the paraxial position; the object side S1 is convex at the circumference, and the image side S2 is concave at the circumference.

[01...

no. 3 example

[0139] refer to Figure 5 and Image 6 , in the third embodiment, the optical system 10 includes an aperture stop STO, a first lens L1 with positive refractive power, a second lens L2 with negative refractive power, and a first lens L2 with positive refractive power from the object side to the image side. Three lenses L3, a fourth lens L4 with negative refractive power, a fifth lens L5 with positive refractive power, and a sixth lens L6 with negative refractive power. Image 6 The longitudinal spherical aberration diagram, astigmatism diagram and distortion diagram of the optical system 10 in the third embodiment are included, wherein the reference wavelength of the astigmatism diagram and distortion diagram is 587.56 nm.

[0140] The object side S1 of the first lens L1 is convex at the paraxial position, and the image side S2 is concave at the paraxial position; the object side S1 is convex at the circumference, and the image side S2 is concave at the circumference.

[0141...

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Abstract

The invention relates to an optical system, a camera module and electronic equipment. The optical 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 a concave object-side surface at a paraxial regionand a convex image-side surface at a paraxial region; a fifth lens element with positive refractive power, wherein both the object-side surface and the image-side surface of the fifth lens element areaspheric; and a sixth lens with negative refractive power, wherein the object side surface and the image side surface of the sixth lens are aspheric surfaces, and at least one of the object side surface and the image side surface is provided with an inflection point. The optical system satisfies the following relationship: 0.25 < SD11/ImgH < 0.35; sD11 is the maximum effective radius of the object side surface of the first lens, and ImgH is half of the image height corresponding to the maximum field angle of the optical system. The optical system can achieve small-head design, so that the screen-to-body ratio of equipment can be improved.

Description

technical field [0001] The invention relates to the technical field of photography and imaging, in particular to an optical system, a camera module and electronic equipment. Background technique [0002] With the development of camera equipment, the current equipment can be designed by digging holes to place the camera on the side of the display screen, so as to eliminate structures that affect the screen-to-body ratio of the equipment, such as large bezels and bangs. For a device with a screen hole design, the structure of the camera largely determines the size of the screen hole, which in turn affects the screen-to-body ratio of the device. On the other hand, when the object-end structure of the camera is controlled so that the size of the screen opening is excessively reduced, the amount of light incident on the camera will be insufficient, resulting in lower image quality. [0003] At present, there is a great demand for devices with high screen-to-body ratio in the mar...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045
Inventor 邹金华李明
Owner JIANGXI JINGCHAO OPTICAL CO LTD
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