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Optical system, lens module and electronic equipment

An optical system and lens technology, applied in optics, optical components, instruments, etc., can solve problems such as driving risks

Active Publication Date: 2021-01-08
TIANJIN OFILM OPTO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing side-view camera lens cannot simultaneously satisfy the presentation of long-distance details and clear imaging in a large angle range, and cannot accurately judge the details of long-distance shooting in real time to make early warnings or avoid obstacles in a large angle range. , leading to the existence of driving risk

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0059] Please refer toFigure 1a and Figure 1b , the optical system of this embodiment includes in sequence from the object side to the image side along the optical axis direction:

[0060] The first lens L1 has a negative refractive power, its object side S1 is a plane, and its image side S2 is a concave surface;

[0061] The second lens L2 has a negative refractive power, its object side S3 is concave, and its image side S4 is convex;

[0062] The third lens L3 has positive refractive power, its object side S5 is convex, and its image side S6 is convex;

[0063] The fourth lens L4 has positive refractive power, its object side S7 is concave, and its image side S8 is convex;

[0064] The fifth lens L5 has positive refractive power, its object side S9 is convex, and its image side S10 is convex.

[0065] The sixth lens L6 has negative refractive power, the object side S10 is concave, and the image side S11 is concave.

[0066] The materials of the first lens L1 to the sixt...

no. 2 example

[0081] Please refer to Figure 2a and Figure 2b , the optical system of this embodiment includes in sequence from the object side to the image side along the optical axis direction:

[0082] The first lens L1 has a negative refractive power, its object side S1 is a plane, and its image side S2 is a concave surface;

[0083] The second lens L2 has a negative refractive power, its object side S3 is concave, and its image side S4 is convex;

[0084] The third lens L3 has positive refractive power, its object side S5 is convex, and its image side S6 is convex;

[0085] The fourth lens L4 has positive refractive power, its object side S7 is concave, and its image side S8 is convex;

[0086] The fifth lens L5 has positive refractive power, its object side S9 is convex, and its image side S10 is convex.

[0087] The sixth lens L6 has negative refractive power, the object side S10 is concave, and the image side S11 is concave.

[0088] Table 2a shows a table of the characteristi...

no. 3 example

[0097] Please refer to Figure 3a and Figure 3b , the optical system of this embodiment includes in sequence from the object side to the image side along the optical axis direction:

[0098] The first lens L1 has a negative refractive power, its object side S1 is a plane, and its image side S2 is a concave surface;

[0099] The second lens L2 has a negative refractive power, its object side S3 is concave, and its image side S4 is convex;

[0100] The third lens L3 has positive refractive power, its object side S5 is convex, and its image side S6 is convex;

[0101] The fourth lens L4 has positive refractive power, its object side S7 is concave, and its image side S8 is convex;

[0102] The fifth lens L5 has positive refractive power, its object side S9 is convex, and its image side S10 is convex.

[0103] The sixth lens L6 has negative refractive power, the object side S10 is concave, and the image side S11 is concave.

[0104] Table 3a shows a table of the characteristi...

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Abstract

The invention provides an optical system, a lens module and electronic equipment. The optical system includes, in order from an object side to an image side, a first lens element with negative refractive power, wherein an object-side surface of the first lens element is a plane; a second lens with negative refractive power, wherein the object side surface of the second lens is a concave surface; athird lens with positive refractive power, wherein the object side surface of the third lens is a convex surface; a fourth lens with positive refractive power, wherein the object side surface of thefourth lens is a concave surface; a fifth lens element with positive refractive power, wherein both the object-side surface and the image-side surface of the fifth lens element are convex; and a sixthlens with negative refractive power, wherein the object side surface and the image side surface of the sixth lens are both concave surfaces; the optical system satisfies the conditional expression: f56 / f is larger than -51 and smaller than -10. By means of the arrangement, the optical system can meet the technical requirements for the presentation of long-distance details and clear imaging in a large-angle range at the same time, and has a wide imaging view field range and a deep imaging depth range.

Description

technical field [0001] The invention belongs to the field of optical imaging, and in particular relates to an optical system, a lens module and electronic equipment. Background technique [0002] With the development of the automotive industry, the technical requirements for automotive driving assistance cameras such as front view, side view, automatic cruise, driving recorder, and reversing images are getting higher and higher. The side view camera is an on-board camera used to monitor the road conditions on the left and right sides of the car, and can be used as a camera system in advanced driver assistance systems to analyze video content. With the side-view camera, the driver can intuitively identify and monitor obstacles and pedestrians in the blind spots on the left and right sides of the car while the car is driving. When the driver drives the car through special places (such as intersections, roadblocks, parking lots, etc.) to turn or turn around, he can turn on the...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/06G02B13/18
CPCG02B13/0045G02B13/006G02B13/06G02B13/18
Inventor 蔡雄宇兰宾利赵迪周芮
Owner TIANJIN OFILM OPTO ELECTRONICS CO LTD
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