ClassID:

167795

G01N21/256 - 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; Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands Arrangements using two alternating lights and one detector

Recent Application in this class:
#1
20250327739
2025-10-23

WATER QUALITY MEASUREMENT DEVICE

#2
20250076186
2025-03-06

LIGHT INTENSITY CONTROLLER AND LASER WAVELENGTH SCANNING DOUBLE-BEAM SPECTROMETER

#3
20240288369
2024-08-29

Apparatus and method for optically characterizing a textile sample

#4
20220276168
2022-09-01

Apparatus and method for optically characterizing a textile sample

#5
20220245808
2022-08-04

Image processing apparatus, image processing system, image processing method, and computer-readable recording medium

#6
20220163439
2022-05-26

Sample classification device, sample classification system, and sample classification method

#7
20220120672
2022-04-21

Smoke detector

#8
20210131954
2021-05-06

Detecting device, detecting unit, and detecting system

#9
20200056993
2020-02-20

MEASURING DEVICE HAVING AN OPTICAL MEASURING ARRANGEMENT AND METHOD FOR CARRYING OUT AN OPTICAL DISTANCE MEASUREMENT USING SUCH A MEASURING ARRANGEMENT

#10
20200041379
2020-02-06

Deformometer for determining deformation of an optical cavity optic

#11
20190226985
2019-07-25

ANALYTICAL TEST DEVICE

#12
20190041722
2019-02-07

Apparatus for analyzing a media, and associated egg identification apparatus and method

#13
20180283945
2018-10-04

Sparkle measurement

#14
20180011007
2018-01-11

Arrangement for measuring gas concentrations

#15
20170261426
2017-09-14

Substance detection sensor, substance detecting method, and substance detection system having dual light source with optical scanning

#16
20160377550
2016-12-29

Signal and Detection System For Keying Applications

#17
20160138972
2016-05-19

Optical sensor device

#18
20150049335
2015-02-19

Sensor arrangement for measuring the concentration of a substance

#19
20140070077
2014-03-13

Optical sensor device for detecting a pulse of a living body

#20
20130188187
2013-07-25

Signal and detection system for keying applications

#21
20130073220
2013-03-21

CONCENTRATION MEASUREMENT METHOD AND CONCENTRATION MEASUREMENT APPARATUS

#22
20080024774
2008-01-31

Optical measuring system