Detection light source assembly for preventing candid shooting of a mobile phone

Abstract

The invention belongs to the technical field of photoelectric countermeasure, and particularly provides a detection light source assembly for preventing candid shooting of a mobile phone, and the detection light source assembly can be perfectly integrated on the mobile phone to realize detection of a candid shooting camera on the premise that the light path structure and circuit software and hardware of the mobile phone are not additionally modified and other functions of the mobile phone are not interfered. The detection light source assembly comprises a main detection light source device and a light-emitting control unit, the main detection light source device is closely placed in front of a camera of the smart phone for use, and a flash lamp of the smart phone is adopted as an auxiliary detection light source and flashes and emits light. The light-emitting control unit controls the main detection light source device to flicker at the same frequency, the main detection light source device and the auxiliary detection light source flicker alternately, and detection of the candid camera is achieved through comparison of images collected by the mobile phone camera in real time in the two light-emitting states. Meanwhile, the assembly has the advantages of high reliability, attractive appearance, miniaturization, low power consumption and the like, is low in production cost, and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of photoelectric countermeasures, and mainly relates to the technology of using light to detect a camera for sneaking shots, in particular to a detection light source assembly for anti-sneaking shots of mobile phones. Background technique [0002] In recent years, various candid incidents have been continuously exposed; candid cameras generally use pinhole cameras, which are small and hidden, and are not easy to be found by human eyes. In order to solve this problem, various anti-candid camera products have been developed. Cameras whose signals are transmitted wirelessly can be detected by electronic dogs, while cameras whose signals are transmitted by wires can be detected by the "cat's eye" effect of the camera. In fact, the "cat's eye" effect method works on the optical system and has nothing to do with the wired or wireless transmission of the signal, so this optical detection method has greater advantag...

AI Technical Summary

Problems solved by technology

At present, various optical detection devices based on the "cat's eye" effect have been used to detect sneak shots, but none of these detection devices can be integrated with mobile phones

[0004] For example, the patent document with the publication number CN205992059 U discloses a kind of external anti-candid camera detector based on smart phone, including laser, lithium battery and telescope, etc., adopts the method of active and passive image phase difference, and provides the processing algorithm ; but the size of the detector is too large to be integrated into the mobile phone. In addition, there are still problems such as the laser used is not safe for human eyes, and the processing method adopted is difficult to eliminate the complex interference sources in the environment.

[0005] Another example is that the patent document with the publication number CN201751862 U discloses a light source device that can be used to detect optical lenses. The device mainly consists of a substrate and a main and auxiliary emission light source installed thereon. There is a light-blocking wall to avoid interference with the shooting when emitting light; the main and auxiliary emitting light sources alternately flash and emit light. Through the comparison of the images in the two light-emitting states, you can find the sneak camera. This light source device can be miniaturized, but There are problems that need to be solved when integrated into the mobile phone: 1) In order to obtain a better effect, the main and auxiliary emission light sources need a large emission power. During the experiment, the current reached 400mA, which is a disadvantageous factor for the battery life of the mobile phone; 2) Since there is no protective structure, it is easily damaged;

[0006] 3) Due to the setting of the main and auxiliary emission light sources, the size of the components is still large, and it is not easy to integrate; 4) There is no method for realizing the alternate flashing of the main and auxiliary emission light sources

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