Will the last cinema be monitored?

The power supply of infrared camera is low, and there are two kinds of infrared rays used: near infrared rays or short-wave infrared rays, the wavelength of which is 0.76 ~ 1.5 micron, and it penetrates deeply into human tissues, about 5 ~10 mm; Far infrared rays or long-wave infrared rays, the wavelength of which is 1.5 ~ 400 microns, are mostly absorbed by superficial skin, and the depth of penetration into tissues is less than 2mm. Enhance the ability to capture images at night. So most users need an infrared camera to pursue a strong photo effect.

The real infrared night vision instrument is photomultiplier tube imaging, which is completely different from the principle of telescope. It can't be used in the daytime, it is expensive and needs power to work.

Extended data:

The quality standards of cinemas are divided into four grades: special, A, B and C (combined with extra large, large, medium and small). The main requirements are determined according to the specific situation. The corresponding requirements of Party A, Party B and Party C shall meet the following requirements:

1. Durability of main structure: Grade A is greater than 100 years, Grade B is 50 ~ 100 years, and Grade C is 25 ~ 50 years.

2. Fire resistance rating: Grade A and Grade B shall not be lower than Grade II; Class c can't be lower than class III, and there can't be an oversized one.