ClassID:

166295

G01J2009/0238 - CPC Classification

Classification description:

Measuring optical phase difference ; Determining degree of coherence; Measuring optical wavelength by interferometric methods; Measurement of the fringe pattern the pattern being processed optically, e.g. by Fourier transformation

Recent Application in this class:
#1
20250354872
2025-11-20

METHODS AND SYSTEMS FOR TWO-DIMENSIONAL DETERMINATION OF THE SIZE AND SHAPE OF A BRIGHT, MICRON-SIZE LIGHT SOURCE USING INTERFEROMETRY WITH A TWO-DIMENSIONAL NON-REDUNDANT APERTURE MASK, INCLUDING METHODS AND SYSTEMS FOR WAVEFRONT SENSING

#2
20230349762
2023-11-02

LASER SYSTEM, SPECTRUM WAVEFORM CALCULATION METHOD, AND ELECTRONIC DEVICE MANUFACTURING METHOD

#3
20220187138
2022-06-16

Totagraphy: coherent diffractive/digital information reconstruction by iterative phase recovery using special masks

#4
20210148764
2021-05-20

Coherent light detection system and method

#5
20200182701
2020-06-11

APPARATUS FOR MEASURE OF COHERENCE OF LIGHT SOURCE FOR HOLOGRAPHIC DISPLAY AND METHOD THEREOF

#6
20200041865
2020-02-06

High speed random access variable focusing and steering of a patterned line

#7
20190219451
2019-07-18

Method and device for measuring wavefront using diffraction grating, and exposure method and device

#8
20180146851
2018-05-31

Ocular metrology employing spectral wavefront analysis of reflected light

#9
20170284791
2017-10-05

Detection device and detection method

#10
20160135680
2016-05-19

Wavefront analyser

#11
20160135679
2016-05-19

Ocular metrology employing spectral wavefront analysis of reflected light

#12
20150160073
2015-06-11

Method and device for measuring wavefront using light-exit section causing light amount distribution in at least one direction

#13
20140098367
2014-04-10

Device and method for characterizing a light beam

#14
20100091146
2010-04-15

WAVEFRONT ABERRATION AND DISTANCE MEASUREMENT PHASE CAMERA

#15
17120919
2022-02-01

Totagraphy: Coherent diffractive/digital information reconstruction by iterative phase recovery using special masks