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The key factors of night vision goggles product selection

Views: 0     Author: Site Editor     Publish Time: 2022-05-23      Origin: Site

Night vision goggles has brought many important influences to our production and life, so what are the key factors for the selection of night vision goggles products? Let's take a look at it next.

Night Vision Googles/Scope

Here is the content list:

  • Night vision goggle laser output power

  • Night vision goggle laser zoom adjustment

  • Spot shaping and homogenization

  • Infrared AR Coating Technology

  • Night vision goggle laser life



Night vision goggle laser output power

The night vision goggles laser is the light source for system lighting, and its cost accounts for a large proportion of the entire night vision goggles system. It is very important to choose the appropriate output power. The wavelength of the infrared laser is divided into 808 nm, 940 nm, etc. In general, within the monitoring range of 200~300 m, it is more appropriate to choose 2~4 W for the output power of the 808 nm wavelength laser, and 6~10 W for the 940 nm wavelength laser. It should be noted that the 808 nm wavelength laser has a red exposure phenomenon, which may be mistaken by the locomotive driver as a signal light, and should be selected carefully; the 940 nm wavelength laser has no red exposure phenomenon, but its utilization efficiency is low, only the 808 nm wavelength laser.


Night vision goggle laser zoom adjustment

The light emitted by the night vision goggles laser is a very narrow beam that needs to be expanded into a light cone by a laser lens. According to the zoom in and out of the zoom lens of the goggle, the zoom lens of the night vision goggles should also change synchronously to ensure that the spot size coincides with the target field of view of the goggle. This synchronization adjustment should be automatically controlled to ensure user convenience.


Spot shaping and homogenization

The light spot emitted by the night vision goggles laser should be uniform and bright, without horizontal stripes, so as not to affect the image effect. Better results can be achieved by shaping and homogenizing.


Infrared AR Coating Technology

To increase the transmittance of the night vision goggles infrared light source, infrared anti-reflection coating technology can be selected to coat the optical lens, and the light efficiency of the treated system is increased by 10%~15%.


Night vision goggle laser life

The service life is very long. The imported laser can provide a mean time between failures of 10,000 hours (the intensity is reduced to 80% of the original), and the service life can be longer after technical treatment such as vacuuming and nitrogen filling. Under normal circumstances, the light source can still guarantee the ideal effect after 3 years of use.


The above is the relevant content about the key factors of night vision goggles product selection. If you are interested in a night vision goggles, you can contact us. I look forward to your arrival very much and hope to cooperate with you.


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