OP.DI.MA. (abrev. for Optical Diffuse Material) is a plastic material which works as a volume reflector. This means that radiation reflects from many boundaries within the material itself. This results in a nearly perfect diffuse reflection.
In pure form, 10 mm thick OP.DI.MA. exhibits a reflectance of up to 98,5 % in the visible spectrum and a minimum reflectance of 93 % within the wavelength range of 250 nm to 2500 nm.
Additives allow a reduced graduation in reflectance from 98,5% to 2%.
Additional information about our OP.DI.MA. products can be found under:
 Products section: OP.DI.MA. products section, Reflectance Standards
Tutorials section: II.5.c. Example - the Lambertian surface
Download section:  Diffuse_Reflectors.pdf (340 kB)
Or contact us to discuss our special requirements
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last changes: 26. Apr 2005
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