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HRCF-08122022 - V 1.1
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4.1 AVAILABLE REPLACEMENT WINDOWS
4. WINDOW REPLACEMENT
Two 1” diameter, uncoated, wedged fused silica windows are included standard with the Habanero
furnace. Window replacements may be required if the optics become degraded over time due to
elevated temperatures. If focusing or other special considerations are required for an application,
the researcher can substitute windows with their own optics. The furnace uses 1 inch diameter
windows up to a maximum thickness of 8 mm. The windows may be removed entirely, which
results in reduced heating performance and temperature uniformity. Below, Table 4 lists our
available replacement windows. All are 1” diameter (25.4 mm), 5 mm (.197 in.) thick, 0.5
°
wedge,
and have high surface flatness to prevent beam distortion.
Part #
Material
Maximum
Temperature
Transmission
Range
Reflection Loss
P1012275
N-BK7
619°C
350-2000 nm
8.1% @ 587.5618 nm
P1012276
Fused Silica*
1600°C
185-2100 nm
6.8% @ 588 nm
P1012277
Sapphire
1134°C
150-5000 nm
14% @ 1060 nm
P1012278
Calcium
Fluoride
600°C (Humid)
1000°C (Humid)
130-10000 nm
5.4% @ 5000 nm
* Included standard with furnace.
Table 3 - Available replacement windows
