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IP-rating
A two-digit number is used to provide
an IP Rating to a piece of electronic
equipment or to an enclosure for
electronic equipment.
The
first digit
represents protection
against ingress of solid objects(dust).
The
second digit
represents protec-
tion against ingress of liquids.
Joule
One joule is defined as the amount of
energy exerted when a force of one
Newton is applied over a displacement
of one meter.
Lens wizard
To set the (back) focus correctly the
lens iris should be fully open to give a
narrow depth of field. The lens wizard
drives the A/I lens fully open while
maintaining correct video level using
the shutter.
Level Control
The adjustment of the video level to
give the desired brightness level. This
can be elecronic or by means of the
iris control.
Line Lock
Synchronises AC powered cameras to
the line voltage frequency.
Lux
See sensitivity.
Manual Iris Lens
A lens where the iris is manually
adjusted to open or close the aperture.
Monochrome
A black and white signal or picture.
Mode switching
Possibility to program three different
parameter sets in a camera. Switching
from one mode to another can be
manually or automatically.
Night Sense
NightSense is a method of boosting
the sensitivity of high-resolution
Dinion color cameras by 9dB (a factor
of 3!) by combining the signals of the
color image in a single monochrome
picture.
Pixel
The microscopic photosensitive
elements of a CCD image sensor.
Remote set-up
Configuring the camera from
a distance e.g. via the coax cable.
Resolution
The measure of the fine detail that can
be seen in an image. In a CCD camera
this is determined.
Saturation
The amplitude of the chrominance
signal affecting the vividness of a color.
Sens-up
Sens-up is used to increase sensitivity
by integrating the signal from a number
of consecutive frames to reduce noise.
Sensitivity
A measure of the incident light required
to give a standard video signal. It’s
value is given in lux or foot-candles.
Ref_guide_Camera 10-11-2004 15:46 Pagina 22
