|
Dichroic Filter coatings are designed to transmit
one spectral region (passband) and reflect another
(rejection band). The filter is a Short Wave Pass if
the passband is to the left of the transition slope, and
a Long Wave Pass if the passband is to the right of
the slope. The advantages of dichroic filters over
colored glass filters are: 1) the rejection band is
reflected rather than absorbed; 2) steeper transition
slope between the passband and the rejection band;
i.e. sharper cut-on or cut-off; 3) coatings can be
custom designed for specific center wavelengths.
|
|
Last Updated ( Friday, 27 April 2007 )
|
|
Read more...
|
|
|
Dichroic Filter coatings are designed to transmit
one spectral region (passband) and reflect another
(rejection band). The filter is a Short Wave Pass if
the passband is to the left of the transition slope, and
a Long Wave Pass if the passband is to the right of
the slope. The advantages of dichroic filters over
colored glass filters are: 1) the rejection band is
reflected rather than absorbed; 2) steeper transition
slope between the passband and the rejection band;
i.e. sharper cut-on or cut-off; 3) coatings can be
custom designed for specific center wavelengths.
|
|
Last Updated ( Friday, 27 April 2007 )
|
|
Read more...
|
|
|
DICHROIC FILTER: SHORT WAVE PASS (SWP) & LONG WAVE PASS (LWP)
Dichroic Filter coatings are designed to transmit
one spectral region (passband) and reflect another
(rejection band). The filter is a Short Wave Pass if
the passband is to the left of the transition slope, and
a Long Wave Pass if the passband is to the right of
the slope.
|
|
Last Updated ( Friday, 27 April 2007 )
|
|
Read more...
|
|
|
