Photoelectric sensing unit, preparation method thereof and photoelectric sensor

Abstract

The invention provides a photoelectric sensing unit, a preparation method thereof and a photoelectric sensor. The photoelectric sensing unit comprises a substrate; and a photosensitive structure layerarranged on the substrate and comprising a transparent layer and a plurality of photosensitive elements. The transparent layer comprises a first section and a second section which are connected witheach other; the first section is in direct contact with the substrate; the second section is curled in a direction far away from the substrate and close to the first section; the plurality of photosensitive elements are arranged on the surface, facing the inner side, of the second section at intervals; the surface, facing the outer side, of the second section is provided with a plurality of protruding parts protruding towards the outer side, and the protruding parts are used for converging light entering the transparent layer from the outer side into the photosensitive elements. The photoelectric sensing unit can realize large sensing of an incident light angle, and can obviously enhance the sensitivity of light.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to a photoelectric sensing unit, a preparation method thereof and a photoelectric sensor. Background technique [0002] Photoelectric sensors are widely used in the fields of optical communication, imaging and detection. However, the current photoelectric sensors (such as CCD, CMOS) can sense the incident light angle (FOV) is small due to size limitations, and are sensitive to light in environments with weak light (such as deep sea / night) and full-screen image recognition. Scene applications with high FOV requirements are limited. Therefore, the current photoelectric sensor still needs to be improved. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. Therefore, an object of the present invention is to provide a photoelectric sensing unit with a larger FOV and better light sensiti...

AI Technical Summary

Problems solved by technology

However, the current photoelectric sensors (such as CCD, CMOS) can sense the small angle of incident light (FOV) due to size limitations, and are sensitive to light in environments with weak light (such as deep sea / night) and full-screen image recognition. Scene applications with high FOV requirements are limited

Therefore, the current photoelectric sensor still needs to be improved

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