G01J2001/1678 - CPC Classification Index

ClassID:

165845 ⎘

G01J2001/1678 - CPC Classification

Classification description:

Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors Comparing time separated signals, i.e. chopped

Sub-classes:

G01J2001/1684 » {and selecting also a DC level from the signal} 0
G01J2001/1689 » {one separated signal being processed differently} 0
G01J2001/1694 » {with a signal from on/off switched light source} 0

Recent Application in this class:

20190271587

2019-09-05

Light emitting diode color resolution testing

20170023404

2017-01-26

Management system for illumination facility