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Image sensor, focusing control method, imaging device and mobile terminal

An image sensor and focus control technology, applied in the electronic field, can solve problems such as slow focusing speed, and achieve the effect of improving focusing speed

Inactive Publication Date: 2017-09-05
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the 4M mode is slow to focus in low-light conditions

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  • Image sensor, focusing control method, imaging device and mobile terminal
  • Image sensor, focusing control method, imaging device and mobile terminal
  • Image sensor, focusing control method, imaging device and mobile terminal

Examples

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Embodiment Construction

[0024] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0025] The following describes an image sensor, a focus control method, an imaging device, and a mobile terminal according to embodiments of the present invention with reference to the accompanying drawings.

[0026] figure 1 is a cross-sectional view of an image sensor according to an embodiment of the present invention, figure 2 It is a top view of an image sensor in which both the in-focus photosensitive unit and the non-focus photosensitive unit include 2*2 photosensitive pixels according to an embodiment of the present inv...

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Abstract

The invention discloses an image sensor, a focusing control method, an imaging device and a mobile terminal. The image sensor comprises a photosensitive unit array, a filter unit array and a micro-lens array, wherein the filter unit array is arranged on the photosensitive unit array; the micro-lens array is positioned on the filter unit array, wherein the micro-lens array includes first micro-lenses and second micro-lenses; one first micro-lens covers one focusing photosensitive unit; and N*N second micro-lenses cover one non-focusing photosensitive unit, wherein the N is a positive integer. According to the image sensor disclosed by the embodiment of the invention, output values for two portions of photosensitive pixels in the focusing photosensitive units can be obtained to perform phase focusing, so the focusing speed can be effectively improved; and the invention further discloses the focusing control method for the image sensor, the imaging device and the mobile terminal.

Description

technical field [0001] The present invention relates to the field of electronic technology, in particular to an image sensor, a focus control method, an imaging device and a mobile terminal. Background technique [0002] With the continuous updating of technology, more and more manufacturers have begun to use image sensors with 16M-4M structure. The image sensor outputs images in 4M mode under low-light conditions, which can improve the signal-to-noise ratio and noise performance. When the ambient light is relatively good, output the image through 16M mode, and use the interpolation restoration algorithm to obtain a higher-definition image. However, in low-light conditions, the 4M mode is slow to focus. Contents of the invention [0003] The object of the present invention is to solve one of the above-mentioned technical problems at least to a certain extent. [0004] In order to solve the above problems, the present invention proposes a focus control method for an imag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/225H04N5/232G02B7/04G02B7/34G02B7/36G03B13/36G03B30/00H04N23/90
CPCG02B7/04H04N23/55H04N23/67G02B7/346G02B3/0043G03B13/20G03B13/36H04N23/54H04N23/672H04N25/44H04N25/46H04N25/704H04N25/134G02B7/36H04N23/45H04N23/90
Inventor 周奇群
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD