DDF4820HDV-DN-IM/-SM
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58
10.2.3
Day/Night
The camera is designed to produce high-quality images in daylight as well as under low
light conditions or at night.
In the
Day/Night
tab, the following settings can be configured:
Fig. 10-4
Mode
•
Automatic
(Day/Night switching):
The automatic Day/Night switching depends on the amount of visible light detected by
the integrated ambient light sensor and internal defined parameters. In low light condi
-
tions, the infrared (IR) cut filter is automatically removed (ICR ON, night mode), which
significantly enhances the sensor’s sensitivity for near infrared light.
In night mode the video image is displayed in black and white.
Depending on the amount of visible light, the IR cut filter is automatically engaged
(ICR OFF) and the camera switches back to day (and colour) mode again.
The switching threshold level and response time can be manually adjusted (see below).
•
Day
(day mode permanently active):
The built-in infrared (IR) cut filter is always engaged (ICR OFF).
•
Night
(night mode permanently active):
The built-in infrared (IR) cut filter is always removed (ICR ON).
threshold Level
This setting provides the manual adjustment of the Day/Night switching threshold levels
(threshold values of brightness and darkness).
Possible values: 0 – 4 (Default: 2)
Higher level:
The camera switches earlier to night mode (ICR ON) and later to day mode (ICR OFF).
Lower level:
The camera switches later to night mode (ICR ON) and earlier to day mode (ICR OFF).
