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Optical lens set

a technology of optical imaging and lens set, which is applied in the field of optical imaging lens set, can solve the problems of developing an optical imaging lens set of a shorter length with uncompromised good quality, and achieve the effects of low production cost, high resolution and high image quality

Inactive Publication Date: 2018-02-08
GENIUS ELECTRONICS OPTICAL XIAMEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is proposing an optical imaging lens set that is small, cheap, has a wider half of field of view, high resolution, and good image quality. The lens set consists of six lens elements arranged in a specific order. Each lens element has a specific refractive power. The only lens elements present are the first, second, third, fourth, fifth, and sixth lens elements, with the first lens element having the strongest refractive power. This optical imaging lens set is designed to be smaller and cheaper than previous lens sets while still maintaining high quality images.

Problems solved by technology

The current trend of research is to develop an optical imaging lens set of a shorter length with uncompromised good quality.

Method used

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Examples

Experimental program
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Effect test

first example

[0099]Please refer to FIG. 6 which illustrates the first example of the optical imaging lens set 1 of the present invention. Please refer to FIG. 7A for the longitudinal spherical aberration on the image plane 71 of the first example; please refer to FIG. 7B for the astigmatic field aberration on the sagittal direction; please refer to FIG. 7C for the astigmatic field aberration on the tangential direction, and please refer to FIG. 7D for the distortion aberration. The Y axis of the spherical aberration in each example is “field of view” for 1.0. The Y axis of the astigmatic field and the distortion in each example stands for “image height”, which is 3.5 mm.

[0100]The optical imaging lens set 1 of the first example has six lens elements 10 to 60 with refractive power. The optical imaging lens set 1 also has a filter 70, an aperture stop 80, and an image plane 71. The aperture stop 80 is provided between the object side 2 and the first lens element 10. The filter 70 may be used for pr...

second example

[0109]Please refer to FIG. 8 which illustrates the second example of the optical imaging lens set 1 of the present invention. It is noted that from the second example to the following examples, in order to simplify the figures, only the components different from what the first example has, and the basic lens elements will be labeled in figures. Other components that are the same as what the first example has, such as the object-side surface, the image-side surface, the part in a vicinity of the optical axis and the part in a vicinity of its circular periphery will be omitted in the following examples. Please refer to FIG. 9A for the longitudinal spherical aberration on the image plane 71 of the second example, please refer to FIG. 9B for the astigmatic aberration on the sagittal direction, please refer to FIG. 9C for the astigmatic aberration on the tangential direction, and please refer to FIG. 9D for the distortion aberration. The components in the second example are similar to th...

third example

[0111]Please refer to FIG. 10 which illustrates the third example of the optical imaging lens set 1 of the present invention. Please refer to FIG. 11A for the longitudinal spherical aberration on the image plane 71 of the third example; please refer to FIG. 11B for the astigmatic aberration on the sagittal direction; please refer to FIG. 11C for the astigmatic aberration on the tangential direction, and please refer to FIG. 11D for the distortion aberration. The components in the third example are similar to those in the first example, but the optical data such as the curvature radius, the refractive power, the lens thickness, the lens focal length, the aspheric surface or the back focal length in this example are different from the optical data in the first example, and in this example, the sixth object-side surface 61 has a concave 64 part in a vicinity of its circular periphery.

[0112]The optical data of the third example of the optical imaging lens set are shown in FIG. 26 while ...

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Abstract

An optical lens set includes a first lens element of an object-side surface with a convex portion in a vicinity of an optical axis, a second lens element of an image-side surface with a concave portion in a vicinity of its periphery and a sixth lens element of an image-side surface with a convex portion in a vicinity of its periphery. T5min is the minimal distance from the object-side surface of the fifth lens element to the image-side surface of the fifth lens element and the fifth lens element has a fifth lens element thickness T5 along the optical axis to satisfy T5min / T5≦0.6.

Description

CROSS REFERENCE TO RELATED APPLICATION[0001]This application claims priority from Chinese patent application No. 201610804274.5, filed on 2016 Sep. 6, and from Chinese patent application No. 201610635125.0, filed on 2016 Aug. 5, the contents of which are hereby incorporated by reference in their entirety for all purposes.BACKGROUND OF THE INVENTION1. Field of the Invention[0002]The present invention generally relates to an optical imaging lens set. Specifically speaking, the present invention is directed to a shorter optical imaging lens set of six lens elements for use in mobile phones, in cameras, in tablet personal computers, in in-car cameras, or in personal digital assistants (PDA).2. Description of the Prior Art[0003]In recent years, the popularity of mobile phones and digital cameras makes the sizes of various portable electronic products reduce quickly, and so does those of the photography modules. With the development and shrinkage of a charge coupled device (CCD) or a comp...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B27/00G02B5/20G02B9/62G02B5/00
CPCG02B13/0045G02B9/62G02B27/0025G02B5/208G02B5/005G02B13/0015G02B13/18
Inventor BONE, MATTHEWGAO, TIAN FANGZHANG, BIN WEI
Owner GENIUS ELECTRONICS OPTICAL XIAMEN
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