G01N2021/4752 - CPC Classification Index

ClassID:

167916 ⎘

G01N2021/4752 - CPC Classification

Classification description:

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; Details of optical heads therefor, e.g. using optical fibres Geometry

Sub-classes:

G01N2021/4754 » {Diffuse illumination} 8
G01N2021/4757 » {Geometry 0/45° or 45/0°} 23
G01N2021/4759 » {Annular illumination} 15
G01N2021/4761 » {Mirror arrangements, e.g. in IR range} 15

Recent Application in this class:

20250180475

NON-INVASIVE MEASUREMENT OF PHYSIOLOGICAL PARAMETERS OR SUBSTANCE CONCENTRATIONS IN HUMAN TISSUE

20230349825

Non-invasive measurement of physiological parameters or substance concentrations in human tissue

20220205911

Device and method for determining a concentration in a sample

20200217792

Device and method for determining a concentration in a sample

20190041328

Portable optical apparatus for diffuse reflectance spectroscopy

20190017935

Optical sensor

20170202466

Optical vital signs sensor

20160334332

Device and method for determining a concentration in a sample

20140307260

Diagnostic detection device

20070019199

Methods, systems, and computer program products for optimization of probes for spectroscopic measurement in turbid media

19041765

Fluid imaging based on optical coherence tomography