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Camera shooting 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 unreasonable focal power, lens spacing and lens shape setting, and cannot meet the needs of large aperture, ultra-thin, wide-angle, etc., and achieve excellent optical characteristics. Effect

Active Publication Date: 2020-07-28
AAC OPTICS (CHANGZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, with the development of technology and the increase in the diversified needs of users, the pixel area of ​​the photosensitive device is continuously shrinking, and the system's requirements for imaging quality are continuously improving. Five-piece, six-piece, and seven-piece lens structures It gradually appears in lens design. Although the common seven-element lens has good optical performance, its focal power, lens spacing and lens shape settings still have certain irrationality, resulting in a lens structure with good optical performance. At the same time, it cannot meet the design requirements of large aperture, ultra-thin, wide-angle

Method used

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no. 1 approach ）

[0041] Referring to the accompanying drawings, the present invention provides an imaging 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 photographing optical lens 10 includes in sequence from the object side to the image side: an aperture S1, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens Lens L6, seventh lens L7. An optical element such as an optical filter GF may be disposed between the seventh lens L7 and the image plane Si.

[0042] In this embodiment, the first lens L1 has a positive refractive power, the second lens L2 has a negative refractive power, the third lens L3 has a negative refractive power, the fourth lens L4 has a positive refractive power, and the fifth lens L5 has a negative refractive power , the sixth lens L6 has a positive refractive power, and the seventh lens L...

no. 2 approach ）

[0159] The second embodiment is basically the same as the first embodiment, and the meanings of the symbols are the same as those of the first embodiment, and only the differences are listed below.

[0160] In this embodiment, the object side surface of the fourth lens L4 is convex at the paraxial position.

[0161] Table 5 and Table 6 show design data of the imaging optical lens 20 according to the second embodiment of the present invention.

[0162] 【table 5】

[0163]

[0164] Table 6 shows the aspheric surface data of each lens in the imaging optical lens 20 according to the second embodiment of the present invention.

[0165] 【Table 6】

[0166]

[0167] Table 7 and Table 8 show the design data of inflection point and stagnation point of each lens in the imaging optical lens 20 according to the second embodiment of the present invention.

[0168] 【Table 7】

[0169]

[0170] 【Table 8】

[0171]

[0172] Figure 6 , Figure 7 Schematic diagrams of axial aber...

no. 3 approach ）

[0176] The third embodiment is basically the same as the first embodiment, and the meanings of the symbols are the same as those of the first embodiment, and only the differences are listed below.

[0177] In this embodiment, the object side of the third lens L3 is concave at the paraxial position, the image side is convex at the paraxial position, and the object side of the fourth lens L4 is convex at the paraxial position.

[0178] Table 9 and Table 10 show design data of the imaging optical lens 30 according to the third embodiment of the present invention.

[0179] 【Table 9】

[0180]

[0181] Table 10 shows the aspheric surface data of each lens in the imaging optical lens 30 of the third embodiment of the present invention.

[0182] 【Table 10】

[0183]

[0184] Table 11 and Table 12 show the design data of the inflection point and the stagnation point of each lens in the imaging optical lens 30 according to the third embodiment of the present invention.

[0185] ...

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Abstract

The invention relates to the field of optical lenses. The invention discloses a camera shooting optical lens. The seven lenses are sequentially a first lens with positive refractive power, a second lens with negative refractive power, a third lens with negative refractive power, a fourth lens with positive refractive power, a fifth lens with negative refractive power, a sixth lens with positive refractive power and a seventh lens with negative refractive power from an object side to an image side; the following relational expressions are satisfied: 8.00 < = d1 / d2 < = 16.00; 0.40 < = (d2 + d6) / d4 < = 0.70; 0.50 <= R2 / R3 <= 1.20. The camera shooting optical lens provided by the invention has good optical performance and meets the design requirements of large aperture, wide angle and ultra-thinness.

Description

technical field [0001] The invention relates to the field of optical lenses, in particular to an imaging optical lens suitable for portable terminal devices such as smart phones and digital cameras, and 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 has been increasing, and the photosensitive devices of general photographic lenses are nothing more than photosensitive coupling devices (Charge Coupled Device, CCD) or complementary metal oxide semiconductor devices (Complementary Metal -Oxide Semiconductor Sensor, CMOS Sensor), and due to the improvement of semiconductor manufacturing process technology, the pixel size of photosensitive devices has been reduced, and today's electronic products are developing with good functions and thin, light and small appearance. Therefore, it has Miniaturized camera lenses with good imaging quality have become the ma...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/06G02B13/18
CPCG02B13/0045G02B13/06G02B13/18G02B9/64G02B3/04G02B5/005G02B13/002G02B27/0025
Inventor 寺西孝亮张磊崔元善
Owner AAC OPTICS (CHANGZHOU) CO LTD
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