Barco SIM 7QP HB User Manual

Also see for SIM 7QP HB: User guide

Contents

Barco SIM 7QP HB User Manual Manual pdf 191 page image

B. NVG option (for SIM 7QP HC)B. NVG OPTION (FOR SIM 7QP HC)Overview• Description• Description of a full dimming cycleB.1 DescriptionNVG option modesThe NVG (Night Vision Goggles) is an option at order time, that can be implemented during production on a SIM 7 to ensure arealistic night vision simulation, fully compatible with night vision goggles. This technology offers improved contrast, deep blacklevels and subtle gray shading.With the IR enhanced technology, the image is displayed with the nature-like ratio between visual and IR light. This allows the useto see a realistic night scenery both with and without night vision goggles, without changing any setting to the projector.TechnologyThis technology is based on dedicated optical filters that automatically move into the light path from a certain TOD (Time Of Day)setting on. In practice, this optical filter 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 raisesabove 1000, the NVG filter moves out and Dynacolor switches over to set 2, being the set with advanced color tracking through CLO.The Lamp Runtime counting is doubled when the NVG filter is moved into the light path (i.e. if TOD dropsbelow 1000).B.2 Description of a full dimming cycleIntroductionThe operator does not have to perform any action other than lowering the TOD value. This can be done through the projector’s OSDor by sending commands using the API protocol (e.g. through the IG).Dimming from full light transmission to a TOD value lower than 1000Assume that we want to dim the light output, starting from a TOD of 10000 and end up with a TOD value of 100. The followingsequence will be followed:1. First phase (TOD value is lowered, but has not reached 1001 yet): ECR is dimming the light output until it comes to its minimum,being 25%2. Second phase (TOD value is further lowered to 1001): CCD starts further dimming the light output (down to about 40%)3. Third phase (TOD is set to 1000):- NVG filter moves into the light path- ECR remains at 25%, keeping the Contrast Ration at the same level- CCD returns to full transmission- NVG Dynacolor set is enabled4. Fourth phase (TOD value is further lowered to 100): CCD starts further dimming the light outputIncreasing the light transmission from a TOD value below 1000 to full transmissionAssume that we want to go back from a TOD value of 100 to full light transmission, ending up with a TOD value of 10000. Thefollowing sequence will be followed:R59770330 SIM 7QP SERIES 08/12/2014 187