How to prevent others from shooting projection content with their mobile phones?

In order to prevent others from shooting projection content with their mobile phones, the following methods can be adopted:

1. Use reflective paint or reflective film: The surface of the projection screen is coated with reflective paint or a reflective film, so that when someone tries to shoot with a mobile phone, the content on the screen will reflect light, making the shooting result blurred. The principle of this method is that reflective paint or reflective film can reflect most of the light, thus blocking the picture received by the mobile phone camera.

2. Use infrared jammer: The infrared jammer can emit infrared signals and interfere with the normal work of the mobile phone camera. This can prevent cell phone shooting. The principle of infrared jammer is to interfere with the camera imaging by emitting infrared signals with a specific frequency, so that the shooting results are blurred or can not be shot normally.

3. Add monitoring equipment: set up monitoring equipment at the screening site to monitor whether someone is shooting with a mobile phone. Once someone is found to use the mobile phone illegally, they can stop it in time and take corresponding measures. The principle of this method is to monitor the projection site through monitoring equipment, and take timely measures after finding abnormal behavior.

It should be noted that although the above methods can be used to prevent others from shooting projected content with mobile phones, the possibility of shooting with mobile phones cannot be completely ruled out. Because of the continuous development of technology, there will always be new ways to bypass these protective measures. Therefore, while protecting the screening content, we should also strengthen the management and supervision of the venue, improve the civilized quality and legal awareness of the audience, and maintain a good viewing environment.