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A. NVG option (for SIM 7QP)
A.1 Description
NVG option modes
The NVG (Night Vision Goggles) is an option at order time, that can be implemented during production on a SIM 7 to ensure a
realistic night vision simulation, fully compatible with night vision goggles. This technology offers improved contrast, deep black
levels and subtle gray shading.
Two different NVG options can be ordered, but they are mutually exclusive:
• IR enhanced : the image is displayed with the nature-like ratio between visual and IR light. This allows the use to see a realistic
night scenery both with and without night vision goggles, without changing any setting to the projector
• IR only : the image is displayed with IR light only. It can only be seen through night vision goggles.
Technology
This technology is based on dedicated optical fi lters that automatically move into the light path from a certain TOD (Time Of Day)
setting on. In practice, this optical fi lter comes in when TOD drops below a value of 1001 . At the same time, Dynacolor (if enabled)
switches over to a NVG set (i.e. Set 3), to improve the quality level of the displayed night scenery. As soon as the TOD value raises
above 1000, the NVG
fi lter moves out and Dynacolor switches over to set 2, being the set with advanced color tracking through CLO.
During the NVG mode of the IR only option, the input signal available on the Green channel only is processed. The input signals
for Red and Blue are omitted. The Green input signal is converted to red and processing is done by the Red channel of the projector.
During the NVG mode of
IR enhanced , the full color signal (R, G and B) is processed.
The Lamp Runtime counting is doubled when the NVG fi lter is moved into the light path (i.e. if TOD drops
below 1000).
262 R59770330 SIM 7QP SERIES 07/10/2013