Three-dimensional imaging module and manufacturing method thereof

Abstract

The invention discloses a three-dimensional imaging module and a manufacturing method thereof. The three-dimensional imaging module comprises a sensor, a super lens and a motor, wherein the super lenscomprises a bearing layer and a plurality of sub-wavelength optical elements arranged on the bearing layer in an array mode, and the sub-wavelength optical elements are used for imaging to the sensor. The MEMS motor is used for driving the super lens to be far away from the sensor to shoot close shot or close to the sensor to shoot distant shot.

Description

【Technical field】 [0001] The invention relates to the technical field of imaging modules, in particular to a three-dimensional imaging module and a manufacturing method thereof. 【Background technique】 [0002] Under the existing technology, there are two ways to implement 3D photography. One of the methods is to use the motor to move the lens back and forth to obtain image data of different depths. The disadvantage of this method is that the large size of the lens and the motor is not conducive to use on terminals with limited space such as mobile terminals, and the motor moves Slow speed and low lens sensitivity reduce the frame rate of 3D images. Another way is to change the rotation angle of the micromirrors of the array, so as to change the equivalent curvature of the micromirrors of the array, so as to achieve the effect of zooming and shooting two-dimensional images. The disadvantage of this method is that, 1, the micromirror array Among them, as long as one of them ...

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Problems solved by technology

One of the methods is to use the motor to move the lens back and forth to obtain image data of different depths. The disadvantage of this method is that the large size of the lens and the motor is not conducive to use on terminals with limited space such as mobile terminals, and the motor moves Slow speed and low lens sensitivity, which reduces the frame rate of 3D images

Another way is to change the rotation angle of the micromirrors of the array, so as to change the equivalent curvature of the micromirrors of the array, so as to achieve the effect of zooming and shooting two-dimensional images. The disadvantage of this method is that, 1, the micromirror array Among them, as long as one of them has a problem, the optical performance of the micromirror array will be directly affected, so the requirements for the yield of the micromirror are very high, and the production cost is high; 2. The optical performance of the micromirror array and the size of a single micromirror It is directly related to the number of micromirrors. In order to improve the optical performance, a larger number of smaller size micromirrors is usually required

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