G01N2021/4776 - CPC Classification

Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light; Systems in which incident light is modified in accordance with the properties of the material investigated; Scattering, i.e. diffuse reflection; Diffuse reflection , e.g. also for testing fluids, fibrous materials Miscellaneous in diffuse reflection devices

• G01N2021/4778 » {Correcting variations in front distance} 10
• G01N2021/478 » {Application in testing analytical test strips} 9
• G01N2021/4783 » {Examining under varying incidence; Angularly adjustable head} 13