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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 problems such as large aperture, ultra-thin, wide-angle, lens focal length setting and lens shape setting irrationality, etc.

Active Publication Date: 2021-04-09
AAC OPTICS (CHANGZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these lenses already have good optical performance, the settings of lens focal length and lens shape are still unreasonable to a certain extent, resulting in a lens structure that cannot meet the requirements of large aperture and ultra-thinness while having good optical performance. , wide-angle 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

[0042] figure 1 Shown is the imaging optical lens 10 of the first embodiment of the present invention, the imaging optical lens 10 including five lenses. Specifically, the imaging optical lens 10 sequentially includes: an aperture S1, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 from the object side to the image side. In this embodiment, an optical element such as an optical filter GF is arranged between the fifth lens L5 and the image plane Si, wherein the optical filter GF can be a glass cover plate or an optical filter (filter). In a possible implementation manner, the optical filter GF can also be arranged at other positions.

[0043] In this embodiment, the first lens L1 has positive refractive power, its object side is convex, and its image side is concave; the second lens L2 has negative refractive power, its object side is convex, and its image side is concave; the third lens L3 has positive refractive power, its object si...

no. 2 approach

[0130] 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, and the symbols have the same meanings as the first embodiment. Only the differences are listed below.

[0131] Table 5 and Table 6 show design data of the imaging optical lens 20 according to the second embodiment of the present invention.

[0132] 【table 5】

[0133]

[0134]

[0135] 【Table 6】

[0136]

[0137] Table 7 and Table 8 show the design data of inflection point and stagnation point of each lens in the imaging optical lens 20 of the embodiment of the present invention.

[0138] 【Table 7】

[0139]

[0140]

[0141] 【Table 8】

[0142] Stationary number Stationary position 1 P1R1 P1R2 1 0.695 P2R1 P2R2 P3R1 P3R2 P4R1 P4R2 P5R1 1 1.855 P5R2 1 1.035

[0143] In the subsequent T...

no. 3 approach

[0147] 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, and the symbols have the same meanings as the first embodiment. Only the differences are listed below.

[0148] Table 9 and Table 10 show design data of the imaging optical lens 30 according to the third embodiment of the present invention.

[0149] 【Table 9】

[0150]

[0151] 【Table 10】

[0152]

[0153]

[0154] Table 11 and Table 12 show the design data of inflection point and stagnation point of each lens in the imaging optical lens 30 of the embodiment of the present invention.

[0155] 【Table 11】

[0156]

[0157] 【Table 12】

[0158]

[0159]

[0160] In the subsequent Table 17, various parameters in the third embodiment and the values ​​corresponding to the parameters specified in the conditional formula are also listed.

[0161] Figure 10 , Figure 11 Schematic diagrams o...

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PUM

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Abstract

The present invention provides a kind of photographing optical lens, and photographing optical lens comprises from object side to image side in order: first lens, second lens, third lens, fourth lens, and, fifth lens; Said photographing optical lens The focal length of the first lens is f, the focal length of the first lens is f1, the focal length of the second lens is f2, the focal length of the third lens is f3, the focal length of the fifth lens is f5, and the focal length of the second lens The radius of curvature on the object side is R3, the radius of curvature on the image side of the second lens is R4, the curvature radius on the object side of the fourth lens is R7, and the curvature radius on the image side of the fourth lens is R8. The radius of curvature of the object side of the five lenses is R9, and the radius of curvature of the image side of the fifth lens is R10, and satisfies the following relational formula: -0.50≤f1 / f2≤-0.35; 5.00≤f3 / f≤14.00; -3.10≤ (f2+f5) / f≤‑2.40; 3.00≤(R3+R4) / (R3‑R4)≤4.00; 1.20≤(R7+R8) / (R7‑R8)≤1.30; 0.25≤(R9+R10) / (R9‑R10)≤0.65.

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 rapid development and popularization of smart phones, the R&D and design of cameras have developed rapidly. In addition, today's electronic products are developing with good functions and thin, light and small appearances. Miniaturized cameras with good imaging quality have become the current market on the mainstream. [0003] In order to obtain better imaging quality, traditional miniature lenses mounted on mobile phone cameras mostly use three-element, four-element or even five-element lens structures. Although these lenses already have good optical performance, the setting of the focal length of the lens and the setting of the lens shape are still unreasonable, resulting in a lens s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/06G02B13/18
CPCG02B13/06G02B13/0015G02B13/0045G02B9/60
Inventor 朱军彦王康寺冈弘之陈佳
Owner AAC OPTICS (CHANGZHOU) CO LTD