Terminal and terminal camera module

Abstract

The invention discloses a terminal and a terminal camera module. The terminal camera module comprises a first optical filter, a second optical filter, a switching module and a terminal camera module main body; the first optical filter and the second optical filter are positioned above the terminal camera module; the terminal camera module can receive infrared light and visible light; the first optical filter is used for filtering infrared light in the light before external light goes into a terminal camera module main body; the second optical filter is used for filtering visible light in the light and only allowing the infrared light to pass through before the external light goes into the terminal camera module main body; the switching module is used for changing positions of the first optical filter and the second optical filter relative to the terminal camera module main body to realize switching between the first optical filter and the second optical by the terminal camera module to filter the external light. The terminal and terminal camera module can make a mobile phone camera to either perform normal shooting or perform iris shooting.

Description

technical field [0001] The present invention relates to the technical field of terminals, in particular to a terminal and a terminal camera module. Background technique [0002] With the rapid development of information technology, illegal computer login cases, mobile phone privacy, bank card and other fraud cases are on the rise, and various cases of forged documents and falsely claiming legal items are also emerging. Therefore, effective identification of personal identities is of great importance to the society and Economic development is of great significance. [0003] As an important identification feature, the iris has the advantages of lifetime uniqueness, stability, collectability, and non-invasiveness. It is an inevitable trend in the development of identification research and application. Compared with identification methods such as fingerprints and face images, iris has higher accuracy, coupled with the lowest false recognition rate, it has become the first choic...

AI Technical Summary

Problems solved by technology

However, due to the interference of infrared light on normal mobile phone cameras, there will be infrared filters inside the camera of conventional mobile phones to prevent infrared light from entering the sensor, so as to ensure the effect of normal photo taking

Therefore, conventional mobile phone cameras cannot be used to capture iris images illuminated by infrared light sources

like figure 1 As shown, it is an anatomical diagram of a conventional mobile phone camera module, which includes a rigid-flex board A, components B, board-to-board connector C, D photosensitive chip D, mirror holder E, infrared filter F, and motor G (Optional), H lens, wherein the filtering characteristics of the infrared filter F to the light source are as follows figure 2 As shown, the infrared filter can only pass the visible spectrum and cannot receive the infrared spectrum

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