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TM 9-8000
Figure 16-14. Demonstration of Fuse Operation.
blackout lighting, however, ir lighting is undetectable to
16-9.  Purpose. Blackout lighting is a requirement for
the human eye. There are two basic types of ir lighting
certain combat operations.  One purpose of blackout
systems: the active system and the passive system.
lighting is to provide the vehicle operator with sufficient
light to operate the vehicle in total darkness. Another is
a. Active System. The active system uses a light
to provide minimum lighting to show vehicle position to a
source combined with a red lens to emit light in the near
leading or trailing vehicle when the illumination must be
ir range. The emitted light is reflected back from the
restricted to a level not visible to a distant enemy.
illuminated object and focused in an image-converter
tube.  The tube converts an image formed in one
16-10. Configurations.
wavelength of radiation into an image in a visible
wavelength for viewing.  The tube contains both the
a. The blackout driving light (fig.
sensor and display in one unit. The ir lighting system
designed to provide a white light of 25 to 50 candlepower
employed on present
at a distance of 10 feet directly in front of the lamp. The
lamp is shielded so that the top of the light beam is
directed not less than 2 degrees below the horizon. The
beam distribution on a level road at 100 feet from the
lamp is 30 feet wide on a properly designed light.
b. The blackout stoplight, marker light (fig. 16-16),
and taillight are designed to be visible at a horizontal
distance of 800 feet and not visible beyond 1200 feet.
The lights also must be invisible from the air above 400
feet with the vehicle on upgrades and downgrades of 20
percent. The horizontal beam cutoff for the lights is 60
degrees right and left of the beam centerline at 100 feet.
c. The composite light (fig. 16-17) is currently the
standard lighting unit that is used on the rear of tactical
military vehicles. The composite light combines service
stop, tail, and turn signals with blackout stop and tail
16-11. Controls and Lockouts.
Blackout lighting
control switches are designed to prevent the service
lighting from being turned on accidentally.
operation is described in paragraph 16-7a (3).
16-12. Infrared Lighting. Infrared (ir) lighting provides
Figure 16-15. Blackout Driving Light.
vision to troops at night, like blackout lighting. Unlike


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