It has a nearly flat reflectance in the wavelength range of 250 to 2450 nm and reflection characteristics that approximate ideal Lambertian reflection, making it optimal as a standard reflector.
SphereOptics' standard diffuse reflector is made from a unique material called Zenith Polymer. It is durable against heat, humidity, and high-output light sources, and has a nearly flat reflectance in the wavelength range of 250 to 2450 nm, with reflection characteristics that approximate ideal Lambertian reflection, making it optimal as a standard reflector.
It is available with reflectance values of 99%, 80%, 60%, 50%, 25%, 10%, 5%, and 2.5%, in two sizes: Φ50mm and Φ30mm.
■ Features
- Diffuse reflectance from 2.5% to 99%
- Nearly flat reflectance in the wavelength range of 250 to 2450 nm
- Approximates ideal Lambertian reflection
- Tolerance of reflectance values by batch ±3%
- Laser damage threshold: 8 J/cm² @ pulse laser
- Certified calibration using PTB and NIST traceable PerkinElmer Lambda 950
- Non-polar, insulating, hydrophobic
- Chemically inert (except reacts with organic lithium and sodium compounds)
- Operating temperature range: -50 to 250 ℃
- Operating humidity range: 5 to 95%