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Detailed below are a
variety of accessory filters, including beamsplitters,
IR blocking filters, IR-DIC
filters, polarising filters and multiphoton
filters.
If you require neutral
density filters, click here.
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Beamsplitters |
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Beamsplitters are produced
by coating fused silica with refractory oxides and rare earth
fluorides. As with all dielectrics at non-normal incidence, the
performance in the two planes of polarisation is very different. If
polarisation is important, please request an individual trace in both
orthogonal planes. Beamsplitters are available in standard dichroic
sizes and are designed to work at a 45 degree angle of incidence from
400 - 700nm. Numbers indicate transmission/reflectance values.
Mirrors consist of metallic coating with protective overcoats
designed to reduce the spectral distortion inherent in the metal thin
film. Although some polarisation is unavoidable, these mirrors are at
the limits of practice in minimising the impact on a randomly
polarised signal.
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Part Number |
Description |
Application |
Size |
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XF121 |
50/50 Beamsplitter |
50%T, 50%R |
Standard dichroic |
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XF122 |
70/30 Beamsplitter |
70%T, 30%R |
Standard dichroic |
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XF123 |
30/70 Beamsplitter |
30%T, 70%R |
Standard dichroic |
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XF125 |
Reflecting Mirror |
Black backing
prevents transmission, >/= 90% Reflection |
Standard dichroic |
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IR Blocking Filters |
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These accessory blocking
filters are used to reduce infrared energy, either in the excitation
path (XF83) or in the emission path in front of a CCD Camera (XF85, XF86).
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Part Number |
Description |
Application |
Typical T% |
Size |
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XF83 |
KG5 |
Blocks
infrared energy at the light source |
80% avg. |
12R, 18R,
20R, 22R, 25R, 32R, 45R, 50R, 50S |
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XF85 |
550CFSP |
99+% Near
IR Attenuation, 600 - 1200nm |
> 75%T |
12R, 18R,
20R, 22R, 25R, 32R, 45R, 50R, 50S |
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XF86 |
700CFSP |
99+% Near
IR Attentuation, 750 - 1100nm |
>90%T |
12R, 18R,
20R, 22R, 25R, 32R, 45R, 50R, 50S |
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IR-DIC Filters |
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These filters permit
simultaneous capture of fluorescence and infrared DIC images.
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Part Number |
Description |
Application |
Size |
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XF117/32R |
780DF35 |
IR-DIC |
32mm |
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XF117/45R |
780DF35 |
IR-DIC |
45mm |
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Polarising Filter |
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This filter is designed to
polarise light through the visible region. They are suitable for use
in the excitation or emission path of the microscope and are
available in a standard size of 50 x 50mm square.
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Part Number |
Description |
Size |
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XF120 |
Polarising Filter |
50 x 50mm |
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Multiphoton Filters |
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Multiphoton filters are
used in conjunction with two- and three-photon IR laser excitation on
fluorophores in confocal imaging. With this technique, researchers
can section deeper into labelled specimens with minimal
photobleaching and photodamage to cells. The dichroic has extended
reflection which covers the tunable range of most IR laser lines used
for this technique, including Ti:Sapphire. The laser blocking filter
will eliminate background scatter from the exciting laser line.
Alternate designs are available to suit specific applications.
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Part Number |
Type |
Description |
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XF2033 |
Dichroic |
675DCSPXR |
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XF3100 |
Laser
Blocking Filter |
710ASP |
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