Digital Night Vision-The New Way To See In The Dark
Digital night vision is the latest and greatest in night vision evolution. Recent improvements in
CCD and CMOS sensor technology have resulted in much better near
infrared light capture. The displays, near infrared illuminators and
image interpreting software that feed the displays have also been
improved and optimized for night vision.
Stationary Digital Night/day Devices
For business and home surveillance, stationary digital cameras using
near infrared illumination have become common. The right cameras in the
right place will capture a fairly complete picture of your
surroundings, day or night.
The cameras can be combined with a multi-channel recorder for a
permanent record. This is something that could be very useful after the
The big sellers generally offer four to eight channels. These surveillance
systems are easy to set up and include everything needed. The DVR will
include a high capacity hard disk that works with a video compression
system to provide an easy months worth of recording. Remote viewing by
way of the internet and a PC is fairly standard.
Of course, the more cameras the better as the range on these devices
can be limited to 15 ft or less in night mode. The addition of IR
illumination done correctly can significantly increase the range and
image quality. Still, the more cameras you have the more coverage.
can be a bit tricky but for the most part not that difficult. Camera
placement for best coverage and image quality can be done by trial and
error. Before running any cabling, mount them temporally and check the
The average handy person can route cabling from the exterior through
soffets, attic spaces, drop ceilings and walls without too much
trouble. If you do it yourself, pay attention to the length of cable
supplied. These surveillance devices come with a limited surveillance
area that is defined by the length of the cable in the box. The length
of cable required isn't just the up a wall and a few feet through an
open space. There are bends and turns in between. Some careful
measurement, a little planning and a good diagram can be very
These systems are readily available on line and the prices have dropped
like a rock in the past few years.
Digital Night Vision in The Field
Digital night vision is not up to the performance of the newest Gen 3
or the best Gen 2 devices but they are giving the standard Gen 2
devices some competition and at a fraction
of the cost.
There are now digital night vision monoculars on the market with light
gathering and image quality comparable to Gen 2 at Gen 1 night vision
prices. Two of the best examples are the Yukon Digital Night Vision
Ranger 5x42 and the Bushnell 5x42 Stealth View Night Vision Digital
The medium to long range performance of these digital monoculars is
Some big advantages of digital night vision
Day and night use:
Image intensifiers are useless in bright light and especially
daylight. The image intensifiers in most of the
night vision available to the general public are destroyed or at least
badly damaged by bright light. Digital night vision devices work as
well as any camcorder in the daylight and produce clear bright images
in near dark conditions. Digital night vision devices handle the
transitions between night and day without image interruptions or
Instead of the round green image of the image intensifier tube you are
presented with a clear black and white image on a rectangular screen.
With some models you even have a choice of display colors and even
color vision. The images are as clear on the edge of the image as they
are at the center.
Both of the digital night vision devices mentioned above allow direct
video output for digital recording or viewing on an auxiliary monitor.
Image intensifiers require camera adapters.
Digital night vision technology is the night vision of the future. Just
like the old cathode ray tube televisions, the image tubes used in
night vision devices may all be replaced by CCD and CMOS sensors in time.