Foshvision Technology Co.,ltd

Foshvision can supply all high quality security night systems and thermal systems!

Home > News > Content
Infrared Night Vision Camera Technology
- Jul 06, 2017 -

Infrared night vision camera is mainly used in the absence of visible light or shimmer in the dark environment, the use of infrared emission device initiative to infrared light projection to the object, the infrared light reflected through the object into the lens after imaging. At this time we see is reflected by the infrared light into the screen, rather than visible light reflection of the screen, then you can shoot to the dark environment can not see the screen.

13deb2c6-93bb-47c6-849f-7c29a2187637.jpg

Light is an electromagnetic wave, its wavelength range from a few nanometers (1nm = 10-9m) to 1 mm (mm) or so. Visible light is only a part of what we call visible light, visible wavelength range of 380nm ~ 780nm, visible wavelength from long to short into red, orange, yellow, green, blue, blue, the wavelength is shorter than the purple Called ultraviolet light, the wavelength is longer than the red light called infrared light. Usually people will be divided into near infrared light, near, far infrared three parts. Near infrared refers to the wavelength of 0.75 to 3.0 microns; in the infrared refers to the wavelength of 3.0 to 20 microns; far infrared refers to the wavelength of 20 to 1000 microns. Because infrared light is non-visible, the naked eye can not see its presence in space, so in a kind of infrared light can be emitted LED diode infrared light active emission of infrared light in the form of a large number of requirements in the use of hidden night vision monitoring, instead of Traditional concealed low lighting night vision monitoring. Infrared light has a different power and 715,850nm two wavelengths, the wavelength of the difference between the decision of the infrared light range and effect


6362717091500002402198877.jpg