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A Fresnel lens, camera light supplement device and mobile terminal

A Fresnel lens and camera technology, applied in the lens, optics, photography and other directions, can solve the problems of poor image imaging effect and large difference in illumination, and achieve the effect of improving image imaging effect and shooting image quality.

Active Publication Date: 2019-10-15
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a Fresnel lens, a camera supplementary light device, and a mobile terminal to solve the problem that the front camera of the mobile terminal uses the existing front camera supplementary light device for front shooting due to the four corners of the viewing area. There is a large difference in illuminance, which leads to the problem of poor imaging effect of the captured image

Method used

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  • A Fresnel lens, camera light supplement device and mobile terminal
  • A Fresnel lens, camera light supplement device and mobile terminal
  • A Fresnel lens, camera light supplement device and mobile terminal

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Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0021] Such as figure 1 As shown, the embodiment of the present invention provides a Fresnel lens 1, comprising: a first surface 2 and a second surface opposite to the first surface 2; wherein, the first surface 2 is a smooth surface, such as figure 2 As shown, the second surface includes a texture setting area and a texture non-setting area, such as figure 1 shown.

[0022] preferred, such as figure 2 As shown, the central area of ​​the second su...

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Abstract

The invention provides a Fresnel lens, a light supplement device for a camera and a mobile terminal. The Fresnel lens includes: a first surface and a second surface opposite to the first surface; wherein, the first surface is a smooth surface, and the second surface includes a textured area and a textured non-set area. The present invention adopts a Fresnel lens whose second surface includes a texture setting area and a texture non-setting area, and after it is subsequently applied to the camera light supplement device, it can compensate for the uniformity of the four corners caused by the misalignment of the light emitting center of the supplement light and the camera viewfinder center The problem of too large difference, and then when the camera light supplement device is applied to a mobile terminal, and the camera light supplement device is used for front shooting, the imaging effect of the captured image is improved, and the quality of the captured image is improved.

Description

technical field [0001] The invention relates to the field of mobile communication equipment, in particular to a Fresnel lens, a camera supplementary light device and a mobile terminal. Background technique [0002] The supplementary light technology for front-facing shooting is gradually being widely used in the field of mobile terminal shooting, especially in the fields of Selfie and Meipai. The current structure of the front fill light of mobile phones, in order to ensure that it is not dazzling, the main flash current of the front fill light is much lower than that of the rear flash, and the front fill light is generally in a constant light mode. The existing front fill light structure includes: Fresnel lens and front fill light. Among them, a layer of black infrared ink is screen-printed on the glass area of ​​the display screen corresponding to the fill light; the main function of the Fresnel lens is to adjust the light emitted by the front fill light, so that the ligh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/225G02B3/08G03B15/02H04M1/22H04M1/02
CPCH04M1/0264H04M1/22G03B15/02G02B3/08H04N23/56H04N23/57H04N23/55
Inventor 黄攀骆凯江少平
Owner VIVO MOBILE COMM CO LTD
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