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Optical lens and imaging equipment

An optical lens and lens technology, which is applied in the field of imaging lens, can solve the problems of short focal length, small lens aperture value, and inability to better meet the diverse imaging needs of electronic equipment, and achieve a balance between long focal length and high pixels, and compact structure Effect

Active Publication Date: 2021-11-02
JIANGXI LIANYI OPTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common six-piece optical lens generally has a short focal length, which is not good for imaging distant images, and most lenses have a small aperture value, which cannot better meet the diverse imaging needs of electronic equipment.

Method used

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  • Optical lens and imaging equipment
  • Optical lens and imaging equipment
  • Optical lens and imaging equipment

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0078] see figure 1 , which is a schematic structural view of the optical lens 100 provided in the first embodiment of the present invention, the optical lens 100 includes: a stop ST, a first lens L1, a second lens L2, The third lens L3, the fourth lens L4, the fifth lens L5, the sixth lens L6, and the filter G1.

[0079] The first lens L1 has positive refractive power, its object side S1 is convex, its image side S2 is concave at the near optical axis and has an inflection point, the vertical distance between the inflection point and the optical axis is 1.967mm, and the sagittal height is 0.057mm; Reasonable control of the position of the inflection point can effectively improve the optical performance of the optical lens.

[0080] The second lens L2 has negative refractive power, its object side S3 is convex, and its image side S4 is concave;

[0081] The third lens L3 has positive refractive power, its object side S5 is a convex surface at the near optical axis, its image...

no. 2 example

[0097] see Figure 5 , the structural schematic diagram of the optical lens 200 provided by the second embodiment of the present invention, the optical lens 200 of this embodiment is substantially the same as the above-mentioned first embodiment, the main difference is that the object side S3 of the second lens is at the near optical axis It is concave and has an inflection point, and the curvature radius and material selection of each lens are different.

[0098] In this embodiment, the vertical distance between the inflection point on the object side S3 of the second lens and the optical axis is 1.160 mm, and the sagittal height is -0.012 mm; the vertical distance between the inflection point on the image side S6 of the third lens and the optical axis is 1.919mm, the sagittal height is 0.439mm; the vertical distance between the inflection point of the image side S10 of the fifth lens and the optical axis is 1.285mm, and the sagittal height is 0.079mm; reasonable control of t...

no. 3 example

[0110] see Figure 9, which is a schematic structural view of the optical lens 300 provided by the third embodiment of the present invention, the structure of the optical lens 300 provided by the third embodiment of the present invention is roughly the same as that of the optical lens 100 in the first embodiment, the difference is that The radius of curvature and material selection of each lens are different.

[0111] In this embodiment, the vertical distance between the inflection point on the object side S1 of the first lens and the optical axis is 2.586 mm, and the sagittal height is 0.211 mm; the vertical distance between the inflection point on the image side S6 of the third lens and the optical axis is 1.345 mm. mm, the sagittal height is 0.329mm; the vertical distance between the inflection point of the image side S10 of the fifth lens and the optical axis is 2.385mm, and the sagittal height is 0.534mm; reasonable control of the inflection point can effectively improve ...

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Abstract

The invention discloses an optical lens and an imaging device. The optical lens comprises in sequence from the object side to the imaging surface along the optical axis: a diaphragm; a first lens with positive refractive power, the object side is a convex surface, and the image side is on the low beam. a concave surface at the axis; a second lens with negative power, whose image side is concave; a third lens with positive power, whose object side is convex at the near optical axis; a fourth lens with positive power, The object side is concave at the near optical axis, and the image side is convex at the near optical axis; for the fifth lens with negative power, the object side is convex at the near optical axis, and the image side is convex at the near optical axis. Concave surface; the sixth lens with negative refractive power, its object side is concave; wherein, the six lenses in the optical lens are all aspherical lenses. The optical lens has the advantages of high pixel, large aperture and long focal length.

Description

technical field [0001] The invention relates to the technical field of imaging lenses, in particular to an optical lens and imaging equipment. Background technique [0002] At present, with the popularization of portable electronic devices (such as smartphones and cameras), coupled with the popularity of social networking, video, and live broadcast software, people are more and more fond of photography, and camera lenses have become standard equipment for electronic devices. , and the camera lens has even become the primary consideration for consumers when purchasing electronic equipment. [0003] With the continuous development of mobile information technology, portable electronic devices such as mobile phones are also developing in the direction of thinner and lighter, full-screen, ultra-high-definition imaging, etc., which puts forward higher requirements for camera lenses mounted on portable electronic devices. The common six-piece optical lens generally has a short foc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B13/18G03B30/00
CPCG02B13/0045G02B13/18G03B30/00
Inventor 谢雨辰于笑枝曾昊杰曾吉勇
Owner JIANGXI LIANYI OPTICS CO LTD