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WH = White Hot / BWH = Boost White Hot
In this classic black-and-white filter, which is militarily preferred, the strongest heat
sources are displayed brightest, so humans and animals are easily recognizable
under normal circumstances. However, they can also be placed in the background
in comparison to even brighter heat sources (e.g. fires).
RH = Red Hot / BRH = Boost Red Hot
This filter is practically the same as the White Hot Filter except that instead of
white, red is used as the brightest color. It is a tactical filter for use at night. The
human eye has 2 varieties of visual cells.
1. The cones, which are responsible for seeing with sufficient brightness and
for distinguishing colors. They are sensitive to red light.
2. The rods, which are very light-sensitive but cannot distinguish colors and are
intensive to the red light.
With the red light of this filter, only the cones are dazzled, which, however, can
not be used in twilight anyway.
BH = Black Hot / BBH = Boost Black Hot
In comparison to the White Hot Filter the heat sources are shown in black. The
thermal image thus looks much more natural. Since a much larger area of the
image is displayed in brighter gray shades, the glare effect is more pronounced
at night.
CR = Cold Red / BCR = Boost Cold Red
This filter is comparable to the Red Hot Filter, except that the coldest areas of the
image are shown in red. This is also a tactical filter which is preferably used at
night to reduce the glare effect.
CG = Cold Green / BCG = Boost Cold Green
Comparable with the Cold Red Filter, except that the brightest color is green.
With this filter stray light, e.g. reflected by the eye is far less noticeable by light
amplifiers. This is also a tactical filter. The nighttime glare effect for the user is
however very pronounced, since the color green is also perceived by the rods
as one of the brightest colors.
RB = Rainbow
The Rainbow F ilter is a technical filter that can be used to assess building insulation.
In this case the color profile is no longer monochrome as in the case of the
filters described above. Instead, an incorrect color representation is used. The
range from warm to cold is illustrated by the colors white, red, yellow, green,
blue and black.
RBHC = Rainbow HC
The Rainbow HC Filter is comparable to the Rainbow Filter but each color transition
still contains a brightness coding after black. This creates even greater contrasts
at the transitions from one color to another and makes even smaller temperature
differences visible. With this filter largely homogeneous surfaces such as walls can
be examined particularly well for changes (e.g. wet areas). However, the orientation
and classification of temperature ranges is hardly possible any more.
IRON = Iron Bow
A technical filter for heat sources in a restricted range of false colors is also
shown. The range from warm to cold is illustrated by the colors white, yellow,
orange, violet and blue. Heat sources are highlighted by increased contrast.
The dynamics of less warm areas is high.
GLOW = Glowbow
A simple filter with heat sources displayed in yellow, colder areas remain red.
In this way people and animals are highlighted. If it is used at night in the forest,
a reduced glare effect can be expected, but this is much better with the tactical
red filters.
HOT = Hottest
A very popular filter for hunters. Heat sources like animals and humans are
displayed in orange while all cooler areas remain black-white. This allows better
orientation. This filter is particularly recommended in the second half of the night
when unoccupied objects have cooled considerably. Otherwise, it may occur that
e.g. trees and larger stones still radiate too much residual heat and thus also
appear orange.
Special features of the TILO-6
The TILO-6 series no longer has an automatic me-
chanical shutter, so they are now completely silent.
Instead they use a software shutter (NUC=Non
Unifirmity Control). This continuously optimizes the
image. However, it takes some time to start. There-
fore it can also happen with the TILO-6 series that
an optimal image is not displayed immediately after
switching on. Stripe or vignette formation can occur.
After 10 –15 s, the image improves significantly.
There are two ways to get an optimal image from
the beginning:
1. Shortly after starting, perform a manual
calibration (see page ). Of course, a manual
calibration without flap, as described on the
same page, is also possible at any time.
2. Perform a NVFFC after a manual calibration.
Thus, the last state of the manual calibration
is saved and automatically called up after the
start.
