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Camera optics

An optical lens, optical total length technology, applied in the field of optical lenses, can solve the problems of wide-angle, insufficient ultra-thin, achieve good optical performance, meet the effect of wide-angle and ultra-thin, and meet design requirements

Active Publication Date: 2020-11-10
AAC OPTICS (CHANGZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a photographic optical lens, aiming at solving the problems of insufficient wide-angle and ultra-thinning of traditional photographic optical lenses

Method used

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Experimental program
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Effect test

no. 1 approach ）

[0035] Please also refer to Figure 1 to Figure 4 , the present invention provides the imaging optical lens 10 of the first embodiment. exist figure 1 Among them, the left side is the object side, and the right side is the image side. The imaging optical lens 10 mainly includes five lenses, and from the object side to the image side are the aperture S1, the first lens L1, the second lens L2, the third lens L3, The fourth lens L4 and the fifth lens L5. An optical element such as an optical filter (filter) GF or a glass plate may be disposed between the fifth lens L5 and the image plane Si.

[0036] In this embodiment, the first lens L1 is made of plastic material, the second lens L2 is made of plastic material, the third lens L3 is made of plastic material, the fourth lens L4 is made of plastic material, and the fifth lens L5 is made of plastic material. In other embodiments, each lens can also be made of other materials.

[0037] In this embodiment, the first lens L1 has p...

no. 2 approach ）

[0137] Figure 5 It is a schematic structural view of the imaging optical lens 20 in the second embodiment. The second embodiment is basically the same as the first embodiment. The meanings of the symbols in the following list are also the same as those in the first embodiment, so the same parts will not be repeated here. Only the differences are listed below.

[0138] Table 5 and Table 6 show design data of the imaging optical lens 20 according to the second embodiment of the present invention.

[0139] 【table 5】

[0140]

[0141] 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.

[0142] 【Table 6】

[0143]

[0144] Table 7 and Table 8 show the design data of inflection point and stagnation point of each lens in the imaging optical lens 20 .

[0145] 【Table 7】

[0146]

[0147] 【Table 8】

[0148]

[0149] In addition, in the subsequent Table 13, various parameters ...

no. 3 approach ）

[0153] Figure 9 It is a schematic structural view of the imaging optical lens 30 in the third embodiment. The third embodiment is basically the same as the first embodiment. The meanings of the symbols in the following list are also the same as those in the first embodiment, so the same parts will not be repeated here. Only the differences are listed below.

[0154] Table 9 and Table 10 show design data of the imaging optical lens 30 according to the third embodiment of the present invention.

[0155] 【Table 9】

[0156]

[0157] Table 10 shows the aspheric surface data of each lens in the imaging optical lens 30 of the third embodiment of the present invention.

[0158] 【Table 10】

[0159]

[0160] Table 11 and Table 12 show the design data of inflection point and stagnation point of each lens in the imaging optical lens 30 .

[0161] 【Table 11】

[0162]

[0163] 【Table 12】

[0164]

[0165] In addition, in the subsequent Table 13, various parameters in the ...

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Abstract

The invention provides a photographic optical lens, the photographic optical lens comprises five lenses in total, and the five lenses are sequentially arranged from the object side to the image side: a first lens with positive refractive power, a second lens with negative refractive power, The third lens with positive refractive power, the fourth lens with positive refractive power and the fifth lens with negative refractive power; wherein, the focal length of the imaging optical lens as a whole is f, the focal length of the second lens is f2, and the focal length of the first lens is The on-axis distance from the image side to the object side of the second lens is d2, the on-axis distance from the image side of the second lens to the object side of the third lens is d4, and the central radius of curvature of the object side of the fourth lens is R7. The radius of curvature of the center of the image side of the four lenses is R8, and satisfies the following relational formula: -6.00≤f2 / f≤-3.00; -20.00≤(R7+R8) / (R7-R8)≤-2.00; 1.60≤d2 / d4≤6.00. The camera optical lens not only has good optical performance, but also meets the design requirements of wide-angle and ultra-thin.

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 photocoupled 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 mainstream in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B13/06G02B13/18
CPCG02B13/0045G02B13/06G02B13/18G02B15/145113G02B27/0012G02B9/60
Inventor 李红叶
Owner AAC OPTICS (CHANGZHOU) CO LTD
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