Olympus CV-180, Инструкция по эксплуатации, Страница: 79 / 296

Chapter 5 Functions
71
EVIS EXERA II VIDEO SYSTEM CENTER CV-180
Brightness adjustment (Exposure)
The brightness of the live images can be adjusted. The lamp brightness is
automatically adjusted to keep the brightness of the image constant when the
light source is set to “AUTO”. The lamp brightness is manually adjusted to keep
the lamp brightness constant at the setting value when the light source is set to
“MAN.”. The function differs depending on the following conditions:
• The light source and its settings.
• The setting of the electric shutter function
(refer to “Electronic shutter” on page 240)
Light
source
Light
source
mode
Endoscope’s
electronic
shutter
Brightness adjustment Brightness level indication
CLV-180 AUTO Independent of
ON/OFF of the
electronic shutter
function. Adjust the brightness using the
“EXPOSURE” buttons on the front panel.
The lamp brightness is automatically
adjusted to keep the image brightness
constant. • The level indicators of the
video system center and
light source are interlocked.
• The “EXPOSURE” indicator
is a dot display.
MAN. Automatically
becomes OFF. Adjust the brightness using the
“EXPOSURE” buttons on the front panel.
The lamp brightness remains constant. • The level indicators of the
video system center and
light source are interlocked.
• The “EXPOSURE”
indicator is a bar display.
Other
than
above AUTO ON • Set the light intensity of the light
source to the center of the adjustable
range.
• Adjust the brightness using the
“EXPOSURE” buttons on the front
panel. The lamp brightness is
automatically adjusted to keep the
image brightness constant.
• The level indicators of this
instrument and light source
are not interlocked.
• The “EXPOSURE” indicator
is a dot display.
OFF Adjust the brightness using the
brightness adjustment buttons on the
light source. The lamp brightness is
automatically adjusted to keep the image
brightness constant. The “EXPOSURE” indicator
goes OFF.
MAN. ON Do not use this setting (see page 74).
The light intensity reaches its greatest
value, and excessive heat of the
endoscope's distal end may occur.
OFF Adjust the brightness using the
brightness adjustment buttons on the
light source. The “EXPOSURE” indicator
goes OFF.
Table 5.2