Image sensor and camera die set

Abstract

An image sensor includes a plurality of image sensor layers which are overlapped with each other. Each image sensor layer includes a plurality of array arranged pixels, and each pixel is provided with a plurality of sub-pixels and each sub-pixel is provided with a photodiode which is used for sensing the lights of different colors. The image sensor applies a plurality of overlapping image sensor layers to sense the light on the image sensor layer to obtain the images with different definitions, thus obtaining the best images and realizing the focusing function.

Description

technical field [0001] The invention relates to an image sensor and a camera module using the image sensor to realize focusing. Background technique [0002] Most of the existing camera modules include a lens barrel and a lens holder, the lens group is arranged in the lens barrel and the image sensor is arranged in the lens holder. Most of the camera modules used in portable electronic devices such as mobile phones, PDAs, and MP3s that have a camera function use a mechanically matched lens barrel and lens base to move relative to each other to achieve the "focus" function. A portable electronic device with a camera function, see Rastislav Lukac et al. Digital Image Indexing Using Secret Sharing Schemes: AUnified Framework For Single-Sensor in the document IEEE Transactions on Consumer Electronics, Vol.51, No.3, AUGUST 2005 Consumer Electronics article. [0003] However, the camera module that utilizes the relative movement of the mechanically matched lens barrel and lens b...

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Problems solved by technology

[0003] However, the structure of the camera module that uses the relative movement of the lens barrel and the lens base to achieve the focusing function is relatively complicated in structure and large in size, which is not conducive to the miniaturization of the camera module.

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