It's fairly obvious that colours don't show up too well in the dark .
That's because coloured items are simply reflecting parts of the white light spectrum
and if there's no white light available there is nothing for them to reflect .
Not usually a problem as we use temporary white light sources at night when we wish to see what's around .
Ok for us but not so convenient for security cameras that need to be able to see in all conditions.
The answer lies with Infra-Red , a light source that is positioned at the very edge of the light spectrum .
Our eyes cannot see infra-red light but guess what , mono ( black and white ) cameras can .
Unfortunately colour cameras are designed to see light in pretty much the same spectrum
as the human eye and therefore cannot see infra-red light .
Most security camera applications would benefit from colour cameras during the day
but due to their physical restrictions they cannot see at night .
The IRCAMS have the answer . They are in effect two cameras in one ,
a vibrant colour camera during the day
that electronically converts to a crisp mono camera with built in Infra-Red illumination
as the light fades making sure the CCTV system automatically get's the best light available in all conditions .
IRCAM's are ready to install outside due to their weatherproof vandal resistant construction .
They are ideally suited for use with the ESP digital video recorders
however they are compatible with virtually any CCTV system . | | |
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