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Optical systems, camera modules and electronic equipment

A technology of optical systems and modes, used in optics, optical components, instruments, etc.

Active Publication Date: 2022-07-22
NANCHANG O FILM OPTICAL ELECTRONICS TECH 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 and an electronic device for how to reduce the preparation cost and overall size of the camera module.

Method used

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  • Optical systems, camera modules and electronic equipment
  • Optical systems, camera modules and electronic equipment
  • Optical systems, camera modules and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0097] refer to figure 1 , in the large viewing angle mode, the optical system 10 sequentially includes a rotatable mirror group G1 and a rear mirror group G2 along the optical axis 101 from the object side to the image side. The rotatable mirror group G1 includes a first sub-lens L11 with a positive refractive power, and the rear mirror group G2 sequentially includes a second lens L2 with a positive refractive power and a third lens with a negative refractive power along the optical axis 101 from the object side to the image side. Lens L3, aperture stop STO, fourth lens L4 with positive refractive power, fifth lens L5 with negative refractive power, and sixth lens L6 with positive refractive power. figure 2 It includes the longitudinal spherical aberration map, astigmatism map, and distortion map of the optical system 10 in the large viewing angle mode in the first embodiment, and the reference wavelengths of the astigmatism map and the distortion map in the following embodi...

no. 2 example

[0131] refer to Figure 5 , in the large viewing angle mode, the optical system 10 sequentially includes a rotatable mirror group G1 and a rear mirror group G2 along the optical axis 101 from the object side to the image side. The rotatable mirror group G1 includes a first sub-lens L11 with negative refractive power, and the rear mirror group G2 sequentially includes a second lens L2 with positive refractive power and a third lens with negative refractive power along the optical axis 101 from the object side to the image side. Lens L3, aperture stop STO, fourth lens L4 with negative refractive power, fifth lens L5 with negative refractive power, and sixth lens L6 with positive refractive power. Image 6 Including the longitudinal spherical aberration map, astigmatism map and distortion map of the optical system 10 in the second embodiment in the large viewing angle mode.

[0132] In the large viewing angle mode, the first surface S111 of the first sub-lens L11 is used as the ...

no. 3 example

[0153] refer to Figure 9 , in the large viewing angle mode, the optical system 10 sequentially includes a rotatable mirror group G1 and a rear mirror group G2 along the optical axis 101 from the object side to the image side. The rotatable mirror group G1 includes a first sub-lens L11 with negative refractive power, and the rear mirror group G2 sequentially includes a second lens L2 with positive refractive power and a third lens with negative refractive power along the optical axis 101 from the object side to the image side. Lens L3, aperture stop STO, fourth lens L4 with negative refractive power, fifth lens L5 with negative refractive power, and sixth lens L6 with positive refractive power. Figure 10 Including longitudinal spherical aberration map, astigmatism map and distortion map of the optical system 10 in the third embodiment in the large viewing angle mode.

[0154]In the large viewing angle mode, the first surface S111 of the first sub-lens L11 is used as the obje...

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Abstract

The invention relates to an optical system, a camera module and an electronic device. The optical system sequentially includes from the object side to the image side: a rotatable lens group, including a first sub-lens, the object side of which is concave at the near optical axis, the image side is convex at the near optical axis, and the object side of the rotatable lens group is The lens end and the image side end can be turned to convert the optical system into telephoto mode; and the rear lens group, including a second lens with positive refractive power, the object side and the image side are convex at the near optical axis; with negative refractive power The third lens with power, the object side and the image side are concave at the near-optical axis; the fourth lens with refractive power, the object side is convex at the near-optical axis, and the image side is concave at the near-optical axis; The fifth lens with negative refractive power, the object side and the image side are concave at the near optical axis; and the sixth lens with positive refractive power, the object side is convex at the near optical axis. The above optical system can have good imaging quality when switching between the large viewing angle mode and the telephoto mode.

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 an electronic device. Background technique [0002] In the current traditional electronic equipment with a camera function, a camera module with a telephoto lens and a large viewing angle lens is generally set to meet different shooting requirements. For example, when it is necessary to switch from long-range shooting to wide-field shooting, the terminal system of the electronic device switches the imaging screen of the telephoto lens to the imaging screen of the wide-angle lens, so as to satisfy the switching from the narrow field of view to the wide field of view shooting range. . [0003] However, this traditional design inevitably requires two or more different types of lenses and the same number of image sensors. On the one hand, it will obviously increase the cost of the equipment, and on the other hand, it will take u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B15/06
CPCG02B15/06
Inventor 蔡振宏冯家正吴伟诚林采一林宗瑜
Owner NANCHANG O FILM OPTICAL ELECTRONICS TECH CO LTD
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