Fresnel lens, camera light-filling device and mobile terminal

A Fresnel lens and mobile terminal technology, applied in the lens, optics, photography and other directions, can solve the problems of large difference in illuminance and poor image imaging effect, and achieve the effect of improving the quality of the captured image and the imaging effect of the image.

Active Publication Date: 2018-02-09
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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  • Fresnel lens, camera light-filling device and mobile terminal
  • Fresnel lens, camera light-filling device and mobile terminal
  • Fresnel lens, camera light-filling 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 camera light-filing device and a mobile terminal. The Fresnel lens comprises a first face and a second face opposite to the first face, wherein the first faceis a smooth surface, and the second face comprises a grain setting region and a grain non-setting region. By adopting the Fresnel lens with the second face provided with the grain setting region and the grain non-setting region, a problem that the quadrangle uniformity difference is large since the luminescence center of a light-filling lamp and a framing center of the camera is misaligned can becompensated after the Fresnel lens is subsequently applied to the camera light-filling device, therefore, the imaging effect of the shot image is perfected and the quality of the shot image is improved when the camera light-filling device is applied to the mobile terminal and the camera light-filling device is used for performing the front shooting.

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 Applications(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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