Shooting optical lens unit

An optical lens and lens technology, applied in the field of optical lenses, can solve the problems of insufficient lens shape setting, insufficient distribution of lens refractive power ratio, insufficient light transmission, etc., and achieve the effect of excellent imaging quality.

Active Publication Date: 2018-11-23
RUISHENG OPTOELECTRONICS TECH SUZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to insufficient distribution of the refractive power ratio of the lens in the imaging optical lens, the amount of light passing through is insufficient, and due to the insufficient setting of the shape of the lens, the wide-angle is not sufficient
[0004] It is difficult for the camera optical lens in the prior art to achieve large aperture, high light flux, wide angle and excellent imaging quality at the same time. Therefore, it is necessary to provide a new technical solution to overcome the above defects

Method used

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Experimental program
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no. 1 approach

[0026] 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 six 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, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixth lens. Lens L6. In this embodiment, optical elements such as a glass plate GF can be arranged between the sixth lens L6 and the image plane Si, wherein the glass plate GF can be a glass cover, or a filter with functions such as IR cut-off filtering. ), of course, in other possible implementation manners, the glass plate GF can also be arranged at other positions.

[0027] In this embodiment, the first lens L1 has a positive refractive power, its object side is convex outward, and its image side is concave; the...

no. 2 approach

[0108] Figure 5 It is a schematic structural diagram of the imaging optical lens 20 in the second embodiment. 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, and only the differences are listed below.

[0109] Table 3 shows the object side and image side curvature radii r of the first lens L1 to the sixth lens L6 constituting the imaging optical lens 20 in the second embodiment, the on-axis thickness of the lenses or the on-axis distance d between the lenses, the refraction rate nd and Abbe number vd. Table 4 shows the aspherical surface data of each lens in the imaging optical lens 20 according to the second embodiment of the present invention.

[0110] It should be noted that, in this embodiment, the units of the radius of curvature and the thickness on the axis are mm.

[0111] 【table 3】

[0112]

[0113] 【Table 4】

[0114]

[0115] In the following Table 7, the values...

no. 3 approach

[0119] Figure 9 It is a schematic structural diagram of the imaging optical lens 30 in the third embodiment. 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, and only the differences are listed below.

[0120] Table 5 shows the object-side and image-side curvature radii r of the first lens L1 to the sixth lens L6 constituting the imaging optical lens 30 in the third embodiment, the on-axis thickness of the lenses or the on-axis distance d between the lenses, the refraction rate nd and Abbe number vd. Table 6 shows aspherical surface data of each lens in the imaging optical lens 30 of the third embodiment.

[0121] It should be noted that, in this embodiment, the units of the radius of curvature and the thickness on the axis are mm.

[0122] 【table 5】

[0123]

[0124]

[0125] 【Table 6】

[0126]

[0127] In the following Table 7, the values ​​of f, f1, f2, f3, f4, f5, an...

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Abstract

The invention, which relates to the field of optical lenses, discloses a shooting optical lens unit comprising a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a positive refractive power, a fourth lens having a negative refractive power, a fifth lens having a positive refractive power, and a sixth lens having a negative refractive power. The lenses are arranged successively from an object side to an image side. The focal length of the first lens is f1; the focal length of the second lens is f2; the radius of curvature of the object side of the third lens is R5; and the radius of curvature of the image side of the third lens image is R6. And the parameters meet a following relational expression: (R5+R6)/(R5-R6) is largerthan or equal to 20 and is less than or equal to 100; and f2/f1 is larger than or equal to -10 and is less than or equal to -2.7. The shooting optical lens unit has the excellent imaging quality as well as large aperture, high luminous flux, and wide angle.

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 continuous improvement of photosensitive element manufacturing technologies such as CCD (Charge Coupled Device, photosensitive coupling device) and CMOS (Complementary Metal-Oxide Semiconductor, complementary metal oxide semiconductor device), the pixel size of the photosensitive element has been gradually reduced and the performance has been continuously improved. , so the society needs an optical camera system with excellent optical performance and high luminous flux. [0003] At present, the 6-chip technical solution with large aperture and high light flux is gradually advancing. For example, the imaging optical lens includes in order from the object side to the image s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/06G02B13/18
CPCG02B13/0045G02B13/06G02B13/18G02B9/62G02B27/0025
Inventor 陈晨曦阳房春环寺冈弘之
Owner RUISHENG OPTOELECTRONICS TECH SUZHOU CO LTD
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