No. 99MBA091A
3-10
3.8
Selecting a Filter
Filters are attached to the transmitted illuminator and vertical reflected illuminator. Select
those filters according to the usage.
Symbol
Filter type
Function and usage
LB80
Color temperature conversion
filter
Referred to as a light balance filter (LB filter). When the voltage of the
halogen lamp is lowered to reduce the light intensity, the entire light of
the lamp becomes red due to decrease in short-wavelength light. This
filter converts the color temperature of the lamp to that of near natural
light by reducing the transmission of long-wavelength light.
This filter has an advantage in observation and capture of color images
under the reflected illumination environment.
ND2
Neutral filter (light)
ND8
Neutral filter (dark)
Referred to as a neutral density filter. This filter is intended to reduce
light in the visible region with no wavelength sensitivity. It is used for
reducing the light intensity without lowering the color temperature of a
light source. The ND2 filter will reduce the light intensity to 1/2 and the
ND8 will reduce it to 1/8.
This filter is effective in observation and capture of color images under
the reflected illumination environment.
GIF
(
※
)
Green interference filter
One of interference filters with multi-layer films evaporated. This filter
transmits only green spectral wavelength light with a central wavelength
of 540nm and a half-width of 70nm. The filter provides a bright
illumination with its greater half-width and transmittance, compared with
a glass green filter.
Particularly, this filter is used for increasing the resolution and contrast of
images under the transmitted illumination environment.
(※)
Standard accessories
NOTE
The illuminator housing is very hot. Be careful when installing the filter.
TIP
Color temperature denotes the temperature of the complete black body that
produces the same chromaticity as that of a light source under consideration.
Turning a light source red refers to lowering the color temperature and turning it
blue refers to raising the color temperature
.
Filter
Label
Halogen illuminator
LED illuminator
Filter
Label
Summary of Contents for MF 1010C Series
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Page 54: ...No 99MBA091A 3 14 MEMO ...
Page 66: ...No 99MBA091A 5 6 MEMO ...
Page 82: ...No 99MBA091A 6 16 c MF 2010C d MF 2017C Unit mm ...
Page 83: ...6 Specifications No 99MBA091A 6 17 e MF 3017C f MF 4020C Unit mm ...
Page 84: ...No 99MBA091A 6 18 6 8 2 Control unit a LED illuminator b Halogen illuminator Unit mm ...
Page 86: ...No 99MBA091A 6 20 d MF 2017C e MF 3017C Unit mm ...
Page 87: ...6 Specifications No 99MBA091A 6 21 f MF 4020C Unit mm ...
Page 88: ...No 99MBA091A 6 22 MEMO ...