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Optical imaging systems and electronics

An optical imaging system, optical axis technology, applied in optics, optical components, instruments, etc., can solve problems such as increased driving risk, low resolution, and difficulty in determining people and objects around the vehicle

Active Publication Date: 2022-07-19
TIANJIN OFILM OPTO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the resolution of the existing front-view camera lens is low, which cannot satisfy the presentation of long-distance details and the clear imaging of a large angle range at the same time. When the driver observes the picture captured by the camera, it may be blurred due to unclear It is difficult to determine the people and objects around the vehicle, which is not conducive to making corresponding early warning or avoidance in time, increasing the driving risk

Method used

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  • Optical imaging systems and electronics
  • Optical imaging systems and electronics
  • Optical imaging systems and electronics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0109] Please refer to figure 1 and figure 2 , the optical imaging system 10 of this embodiment includes a first lens L1, a second lens L2, a third lens L3, a diaphragm 11, a fourth lens L4, a fifth lens L5, and a sixth lens from the object side to the image side L6 , filter 13 and protective glass 15 .

[0110] The first lens L1 has negative refractive power, the object side S11 is convex at the optical axis L, the image side S12 is concave at the optical axis L, and both S11 and S12 are aspherical. The second lens L2 has a negative refractive power, its object side S21 is concave, its image side S22 is convex, and both S21 and S22 are spherical. The third lens L3 has a positive refractive power, its object side surface S31 is a convex surface, its image side surface S32 is a convex surface, and both S31 and S32 are spherical surfaces. The fourth lens L4 has a positive refractive power, its object side surface S41 is a convex surface, its image side surface S42 is a conve...

Embodiment 2

[0128] Please refer to image 3 and Figure 4 , the optical imaging system 10 of this embodiment includes a first lens L1, a second lens L2, a third lens L3, a diaphragm 11, a fourth lens L4, a fifth lens L5, and a sixth lens from the object side to the image side L6 , filter 13 and protective glass 15 .

[0129] The first lens L1 has negative refractive power, the object side S11 is convex at the optical axis L, the image side S12 is concave at the optical axis L, and both S11 and S12 are aspherical. The second lens L2 has a negative refractive power, its object side S21 is concave, its image side S22 is convex, and both S21 and S22 are spherical. The third lens L3 has a positive refractive power, its object side surface S31 is a convex surface, its image side surface S32 is a convex surface, and both S31 and S32 are spherical surfaces. The fourth lens L4 has a positive refractive power, its object side surface S41 is a convex surface, its image side surface S42 is a conve...

Embodiment 3

[0146] Please refer to Figure 5 and to Image 6 , the optical imaging system 10 of this embodiment includes a first lens L1, a second lens L2, a third lens L3, a diaphragm 11, a fourth lens L4, a fifth lens L5, and a sixth lens from the object side to the image side L6 , filter 13 and protective glass 15 .

[0147] The first lens L1 has negative refractive power, the object side S11 is convex at the optical axis L, the image side S12 is concave at the optical axis L, and both S11 and S12 are aspherical. The second lens L2 has a negative refractive power, its object side S21 is concave, its image side S22 is convex, and both S21 and S22 are spherical. The third lens L3 has a positive refractive power, its object side surface S31 is a convex surface, its image side surface S32 is a convex surface, and both S31 and S32 are spherical surfaces. The fourth lens L4 has a positive refractive power, its object side surface S41 is a convex surface, its image side surface S42 is a co...

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Abstract

The invention discloses an optical imaging system and an electronic device. The optical imaging system comprises a first lens with negative refractive power, a second lens with negative refractive power, and a positive refractive The third lens with positive refractive power, the fourth lens with positive refractive power, the fifth lens with negative refractive power, the sixth lens with positive refractive power, and the diaphragm, the object side of the first lens is convex at the optical axis, and the image side is It is concave at the optical axis, the object side of the second lens is concave, the image side is convex, the object side of the third lens is convex, the image side is convex, the object side of the sixth lens is convex at the optical axis, and the fourth lens is convex. The image side of the lens and the object side of the fifth lens are glued to each other. The optical imaging system further includes a diaphragm, and the diaphragm is arranged on the object side of the fourth lens. The optical imaging system satisfies the following relational formula: 2<f123 / f<5; , f123 represents the combined focal length of the first lens, the second lens and the third lens, and f represents the focal length of the optical imaging system.

Description

technical field [0001] The present invention relates to the technical field of optical imaging, in particular to an optical imaging system and an electronic device. Background technique [0002] With the development of the in-vehicle industry, the technical requirements for in-vehicle cameras such as forward view, automatic cruise, driving recorder, and reversing image are getting higher and higher. The front-view camera is an on-board camera installed in front of the car, which can be used as a camera system in the advanced driver assistance system to analyze the video content and provide lane departure warning (LDW), automatic lane keeping assist (LKA), high beam / low beam Control and Traffic Sign Recognition (TSR); it is turned on when parking into a space, and it is very intuitive to see the obstacles in front of the car, making parking into a space more convenient. [0003] The car turns on the camera when passing through special places (such as roadblocks, parking lo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B13/06G02B13/18
CPCG02B13/0045G02B13/006G02B13/06G02B13/18
Inventor 乐宇明蔡雄宇兰宾利周芮
Owner TIANJIN OFILM OPTO ELECTRONICS CO LTD