Overview
This system is integrated with laser auxiliary illumination, varifocal lens and color /black & white switching low-illumination video camera by means of scientific and advanced method. Color surveillance during daytime and the same surveillance in the totally dark environment during nighttime are achieved. It is suitable for short-and medium-distance night surveillance.

Main Functions and Features:

1. Adjustable Size of Illumination Light Spot
With specially designed illumination optical system that enables remote real-time adjustment of illumination angle and intensity of illumination light spot, the no-blind-zone night vision surveillance with short distance, large field of view and large light spot illumination as well as long distance, small field of view and small light spot illumination is achieved.
2. Color/Black & White Automatic Switching
The working mode of the video camera can automatically switch between color and black & white according to the variation of illumination in the environment; all-weather real-time surveillance is achieved with color during daytime and black & white during nighttime as a result of synchronization between the working mode of black & white and that of the laser illuminator. The laser illuminator can be compulsorily remotely turned on/off.
3. Selective Presetting Position
For easy operation, zoom and focus of the imaging lens, size and intensity of the light spot of the laser illumination and the position of the Pan & Tilt can all be preset and interlocked. One touch operation is really achieved, solving the problems in switch of multiple surveillance points.
4. Low Illumination
Ideal surveillance images are obtained even in the dark environment without any illumination.
5. High Stable Optical Axis
The optical axis fine adjustment system ensures the conformity between the imaging system and the image of the illumination system during entire zooming process, no departure or jittering of the light spot.
6. Key Parts Are Specially Treated to Ensure Their Service Life
The service life of the laser is guaranteed as it is sealed in a nitrogen-filled environment after vacuum pumping and heat dissipation and air cooling are also considered in operating status.
7. Unique Processing on Details
In addition to multilayer hard coatings for visible light wave band, multilayer hard coatings for IR wave band are also added to the cover protection glass to ensure the night vision and fog penetration effects of the system. Cooling fins on the cover of the unit ensure long time stable operation of the laser. Tailor-made special constant temperature systems are available according to geography and climate.

Applications:
Places that require short-and medium-distance night vision surveillance such as the construction of peaceful city, law enforcement patrol cars of public security/city administration, watch evidence collection by public security, surveillance of important warehouse, surveillance of oil depot and oil pipeline, marine search and rescue, military base, surveillance of sea embankment and river embankment, reeducation-through-labor office, detention house, prison, railway and locomotive.