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| WELL2855
: PE LAMBDA 900 950 1050 Variable Angle Specular Reflectance Accessory(VASRA) |
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[Absolute Specular Reflectance Accessory(ASRA)]
This PELA-1029 Absolute Specular Reflectance Accessory(V-
W optical geometry) is designed for PE Lambda-
800/850/900/950/1050 UV-VIS-NIR Spectrophotometers.
The PELA-1029 Absolute Specular Reflectance
Accessory is the primary instrument used in the
characterization of the reflectance properties of optical
materials worldwide. The V-W Geometry introduces two
reflections at the sample. This is advantageous for
samples with high reflectivity since the signal change to
be measured is twice as large. However, the need for two
reflections makes this unsuitable for small samples,
especially at higher angles of incidence. It is also
unsuitable for samples of low reflectance.
Features/Principle:
Wavelength Range: 175~3300 nm (200~2500
nm if using a Collection Sphere)
Minimum Sample Size: 20 mm x 20 mm
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