American Dynamics ADCI625-P221, Configuration And User'S Manual

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4-24 Configuration and User Guide
IR/DayNight Mode
IR/DayNight Mode utilizes a series of specific camera functions to dramatically enhance low light
performance.
When needed one of these functions, the True TDN mechanism, removes an IR Cut Filter (IRCF)
from in front of the imager allowing the camera to see in black and white (BW) and utilize
additional near-infrared energy found in many lighting sources like halogen, moonlight, etc.
This, along with slowing down another function, the shutter speed, significantly improves low light
performance rendering clear images where none could be viewed previously.
IR Mode
When the camera is in B/W mode it can utilize or “see” near-IR illumination; something the human
eye cannot do. This can be extremely powerful when the dome is paired with 850~950nm IR
illuminators. With this combination a scene can be well lit with IR light that the dome can see but
people cannot. This is great for areas where externally lighting is not allowed or there is a need for
covert security.
Normal, or visible light, and IR light have different focal points. The camera has 3 IR modes to help
optimize focus capabilities and achieve sharper IP pictures when using these light sources. Please
refer to Table 4-1 Corresponding IR Switching with IR illumination for recommended settings.
Table 4-1 Corresponding IR Switching with IR illumination
Configuring IR
Adjust IR mode on the dome.
Procedure 4-8 Configure IR Mode
Step Action
1
Select
Picture Settings
from the
View
menu.
2
Select the
IR/DayNight Mode
tab.
The IR/DayNight Mode tab displays.
3
Select an IR Mode setting:
IR Curve For Lighting Sources Visibility
Visible Normal Lighting –, Florescent,
Incandescent, Sunlight, etc
Both the dome (in Color and BW) and the
human eye can utilize these types of
illumination sources
850nm 850nm IR illuminators Only the dome (in BW) can utilize this
type of illumination source. The human
eye cannot.
950nm 950nm IR illuminators Only the dome (in BW) can utilize this
type of illumination source. The human
eye cannot