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A 4p screen fingerprint lens

A lens and fingerprint technology, applied in the field of optical lenses, can solve the problems of low brightness at the edge of the screen, small fingerprint recognition area, and low fingerprint recognition rate, so as to improve fingerprint recognition rate and usability, improve relative illuminance, and image quality Good results

Active Publication Date: 2022-08-05
广东省星聚宇光学股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In related technologies, the current under-screen fingerprint lens has a small fingerprint recognition area, a low fingerprint recognition rate, and low relative illumination, resulting in low brightness at the edge of the screen, low imaging quality, and high production costs.

Method used

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  • A 4p screen fingerprint lens
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  • A 4p screen fingerprint lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Refer to the following Figure 1 to Figure 4 , describing the fingerprint lens under the 4p screen according to Embodiment 1 of the present invention. figure 1 A schematic structural diagram of a fingerprint lens under a 4p screen according to Embodiment 1 of the present invention is shown.

[0058] like figure 1 As shown, the fingerprint lens under the 4p screen includes four lenses L1-L4 in sequence from the object side to the image side along the optical axis, the first lens L1 has the object side S1 and the image side S2; the second lens L2 has the object side S3 and the image side S4; the third lens L3 has an object side S5 and an image side S6; the fourth lens L4 has an object side S7 and an image side S8. Optionally, the fingerprint lens under the 4p screen may further include a filter L5 having an object side S9 and an image side S10, and the filter L5 may be a bandpass filter. In the fingerprint lens under the 4p screen in this embodiment, an aperture STO ma...

Embodiment 2

[0073] Refer to the following Figure 5 to Figure 8 , describing the fingerprint lens under the 4p screen according to Embodiment 2 of the present invention. Figure 5 A schematic structural diagram of a fingerprint lens under a 4p screen according to Embodiment 2 of the present invention is shown.

[0074] like Figure 5 As shown, the fingerprint lens under the 4p screen includes four lenses L1-L4 in sequence from the object side to the image side along the optical axis, the first lens L1 has the object side S1 and the image side S2; the second lens L2 has the object side S3 and the image side S4; the third lens L3 has an object side S5 and an image side S6; the fourth lens L4 has an object side S7 and an image side S8. Optionally, the fingerprint lens under the 4p screen may further include a filter L5 having an object side S9 and an image side S10, and the filter L5 may be a bandpass filter. In the fingerprint lens under the 4p screen in this embodiment, an aperture STO ...

Embodiment 3

[0089] Refer to the following Figure 9 to Figure 12 , describing the fingerprint lens under the 4p screen according to Embodiment 3 of the present invention. Figure 9 A schematic structural diagram of a fingerprint lens under a 4p screen according to Embodiment 3 of the present invention is shown.

[0090] like Figure 9 As shown, the fingerprint lens under the 4p screen includes four lenses L1-L4 in sequence from the object side to the image side along the optical axis, the first lens L1 has the object side S1 and the image side S2; the second lens L2 has the object side S3 and the image side S4; the third lens L3 has an object side S5 and an image side S6; the fourth lens L4 has an object side S7 and an image side S8. Optionally, the fingerprint lens under the 4p screen may further include a filter L5 having an object side S9 and an image side S10, and the filter L5 may be a bandpass filter. In the fingerprint lens under the 4p screen in this embodiment, an aperture STO...

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Abstract

The present invention provides a 4p screen fingerprint lens, the 4p screen fingerprint lens, from the object side to the image side, includes: a first lens, a second lens, a third lens and a fourth lens; the first lens image The side is concave, the image side of the second lens is convex, and the object side of the third lens has at least one convex inflection point; the distance on the optical axis between the object side of the second lens and the image side of the fourth lens is ZD, the focal length of the fourth lens is f4, and the following relational formula is satisfied: ‑0.296<ZD / f4<‑0.216. The beneficial effects of the invention are as follows: using four aspherical lenses to match, under the condition of ensuring compact structure, the object surface is enlarged to improve the fingerprint recognition area, and the fingerprint recognition rate and ease of use are further improved; The overall improvement, and has the advantages of better imaging quality and lower production costs.

Description

【Technical field】 [0001] The invention relates to the technical field of optical lenses, in particular to a fingerprint lens under a 4p screen. 【Background technique】 [0002] In recent years, with the rise of smart phones, the demand for miniaturized photographic lenses is increasing, and the photosensitive devices of general photographic lenses are nothing more than Charge Coupled Device (CCD) or Complementary Metal Oxide Semiconductor Device (Complementary Metal Semiconductor). -OxideSemicondctor Sensor, CMOS Sensor) two kinds, and due to the improvement of semiconductor manufacturing technology, the pixel size of the photosensitive device is reduced, and the current electronic products have good functions, thin and short appearance as the development trend, so it has good The miniaturized under-screen fingerprint lens with imaging quality has become the mainstream in the current market. [0003] In the related art, the fingerprint recognition area of ​​the current under...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0015G02B13/004
Inventor 王锋孙加安周明明马庆鸿万良伟
Owner 广东省星聚宇光学股份有限公司
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