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Camera Optical Lens

A technology of optical lens and optical total length, which is applied in the field of optical lens, can solve the problems of irrational setting of focal power, lens spacing and lens shape, and cannot meet the problems of large aperture, ultra-thin, long focal length, etc., and achieve good optical performance Effect

Active Publication Date: 2021-11-05
AAC OPTICS (CHANGZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the development of technology and the increase of diversified needs of users, as the pixel area of ​​the photosensitive device continues to shrink, and the system’s requirements for imaging quality continue to increase, the seven-element lens structure gradually appears in the lens design. Common Although the seven-element lens already has good optical performance, its focal power, lens spacing and lens shape settings still have certain irrationality, resulting in a lens structure that cannot meet the requirements of large aperture, large aperture, and lens shape while having good optical performance. Ultra-thin, long focal length design requirements

Method used

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  • Camera Optical Lens
  • Camera Optical Lens
  • Camera Optical Lens

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0062] Please refer to the accompanying drawings, the present invention provides a camera optical lens 10 . figure 1 Shown is the imaging optical lens 10 of the first embodiment of the present invention, and the imaging optical lens 10 includes seven lenses. Specifically, the imaging optical lens 10 includes, from the object side to the image side in sequence: an aperture S1, a first lens L1 with positive refractive power, a second lens L2 with negative refractive power, a third lens L3, a lens with positive The fourth lens L4 with refractive power, the fifth lens L5 with negative refractive power, the sixth lens L6 with negative refractive power, and the seventh lens L7 with positive refractive power. An optical element such as an optical filter (filter) GF may be disposed between the seventh lens L7 and the image plane Si.

[0063] The first lens is made of glass, the second lens is made of plastic, the third lens is made of plastic, the fourth lens is made of plastic, the ...

no. 2 approach

[0172] The second embodiment is basically the same as the first embodiment, and the meanings of symbols are the same as those of the first embodiment. For the structure of the imaging optical lens 20 of the second embodiment, please refer to Figure 5 shown, only the differences are listed below.

[0173] Table 5 and Table 6 show design data of the imaging optical lens 20 according to the second embodiment of the present invention.

[0174] 【table 5】

[0175]

[0176] Table 6 shows aspherical surface data of each lens in the imaging optical lens 20 according to the second embodiment of the present invention.

[0177] 【Table 6】

[0178]

[0179]

[0180] Tables 7 and 8 show the inflection point and stagnation point design data of each lens in the imaging optical lens 20 according to the second embodiment of the present invention.

[0181] 【Table 7】

[0182] Number of inflection points Inflection point position 1 Inflection point position 2 Inflect...

no. 3 approach

[0190] The third embodiment is basically the same as the first embodiment, and the meanings of symbols are the same as those of the first embodiment. For the structure of the imaging optical lens 30 in the third embodiment, please refer to Figure 9 shown, only the differences are listed below.

[0191] Table 9 and Table 10 show design data of the imaging optical lens 30 according to the third embodiment of the present invention.

[0192] 【Table 9】

[0193]

[0194]

[0195] Table 10 shows aspherical surface data of each lens in the imaging optical lens 30 according to the third embodiment of the present invention.

[0196] 【Table 10】

[0197]

[0198]

[0199] Table 11 and Table 12 show the inflection point and stagnation point design data of each lens in the imaging optical lens 30 according to the third embodiment of the present invention.

[0200] 【Table 11】

[0201]

[0202]

[0203] 【Table 12】

[0204] Number of stagnation points stag...

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Abstract

The invention relates to the field of optical lenses, and discloses a photographic optical lens, which sequentially comprises from the object side to the image side: a first lens with positive refractive power, a second lens with negative refractive power, and a third lens , the fourth lens with positive refractive power, the fifth lens with negative refractive power, the sixth lens with negative refractive power and the seventh lens with positive refractive power; satisfy the following relationship: 2.80≤v1 / v2≤4.30; 1.70≤n6≤2.20; 3.00≤d10 / d11≤10.00. The imaging optical lens provided by the invention has good optical performance and at the same time satisfies the design requirements of large aperture, long focal length and ultrathinness.

Description

【Technical field】 [0001] The invention relates to the field of optical lenses, in particular to an imaging optical lens suitable for portable terminal equipment such as smart phones and digital cameras, as well as imaging devices such as monitors and PC lenses. 【Background technique】 [0002] In recent years, with the rise of smart phones, the demand for miniaturized photographic lenses is increasing day by day, and the photosensitive devices of general photographic lenses are nothing more than Charge Coupled Device (CCD) or Complementary Metal Oxide Semiconductor (Complementary Metal Semiconductor) -OxideSemicondctor Sensor, CMOS Sensor) two kinds, and due to the improvement of semiconductor manufacturing technology, the pixel size of the photosensitive device has been reduced, and the current electronic products have good functions and light, thin and short appearance. The miniaturized camera lens with imaging quality has become the mainstream in the current market. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0015G02B13/0045G02B13/18
Inventor 姚艳霞
Owner AAC OPTICS (CHANGZHOU) CO LTD