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Camera Optical Lens

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 design requirements, meet the effect of large aperture and ultra-thin

Active Publication Date: 2021-02-19
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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0032] Please also refer to Figure 1 to Figure 4 , the present invention provides the imaging optical lens 10 of Embodiment 1. 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. The first lens L1 has positive refractive power, the second lens L2 has negative refractive power, the third lens L3 has negative refractive power, the fourth lens L4 has positive refractive power, and the fifth lens L5 has negative refractive power. A glass plate GF is provided between the fifth lens L5 and the image plane Si, and the glass plate GF may be a glass cover or an optical filter.

[0033] Here, the focal length of the whole imaging optical lens 10 is defined as f, the focal length of the third lens L3 is f3, the radius of...

Embodiment approach 2

[0134] 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. Therefore, the same parts will not be repeated here, and only listed below difference.

[0135] Table 5 and Table 6 show the design data of the imaging optical lens 20 according to Embodiment 2 of the present invention.

[0136] 【table 5】

[0137]

[0138] Table 6 shows the aspheric surface data of each lens in the imaging optical lens 20 according to Embodiment 2 of the present invention.

[0139] 【Table 6】

[0140]

[0141]

[0142] Table 7 and Table 8 show the design data of inflection point and stagnation point of each lens in the imaging optical lens 20 .

[0143] 【Table 7】

[0144] Number of inflection points Inflection point position 1 Inflection point position 2 I...

Embodiment approach 3

[0152] 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. Therefore, the same parts will not be repeated here, and only listed below difference.

[0153] Table 9 and Table 10 show the design data of the imaging optical lens 30 according to Embodiment 3 of the present invention.

[0154] 【Table 9】

[0155]

[0156]

[0157] Table 10 shows the aspheric data of each lens in the imaging optical lens 30 according to Embodiment 3 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] Number of inflection points Inflection point position 1 Inflection point position 2 Infle...

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Abstract

The invention provides a kind of photographing optical lens, comprises in order from object side to image side: first lens, second lens, third lens, fourth lens and fifth lens; The first lens has positive refractive power, the second lens has negative refractive power, the third lens has negative refractive power, the fourth lens has positive refractive power, and the fifth lens has negative refractive power; wherein, the overall focal length of the imaging optical lens is f, the focal length of the third lens is f3, and the second The radius of curvature of the object side of the lens is R3, the radius of curvature of the image side of the second lens is R4, the radius of curvature of the object side of the third lens is R5, the radius of curvature of the image side of the third lens is R6, and the radius of curvature of the image side of the first lens is R5. The on-axis thickness is d1, the on-axis distance from the image side of the first lens to the object side of the second lens is d2, the on-axis thickness of the second lens is d3, and the following relationship is satisfied: ‑2.20≤f3 / f≤‑ 1.80; 0.22≤R3 / R4≤0.26; 9.00≤R5 / R6≤11.00; 0.30≤d1 / f≤0.40; 5.00≤d1 / d3≤5.20; 0.40≤(d1+d2+d3) / f≤0.50.

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] With the development of camera technology, camera optical lenses are widely used in various electronic products, such as smart phones, digital cameras and so on. For the convenience of portability, people are increasingly pursuing thinner and lighter electronic products. Therefore, miniaturized camera optical lenses with good imaging quality have become the mainstream of the current market. [0003] The camera optical lenses on traditional electronic products mostly adopt four-piece, five-piece, six-piece or even seven-piece lens structures. The shape setting is insufficient, resulting in insufficient wide-angle and ultra-thin imaging optical lenses. [0004] Therefore, it is necessary to prov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B13/06G02B13/18
CPCG02B13/0045G02B13/06G02B13/18
Inventor 彭海潮寺岡弘之
Owner AAC OPTICS (CHANGZHOU) CO LTD
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