ClassID:

164226

G01B9/02074 - CPC Classification

Classification description:

Instruments as specified in the subgroups and characterised by the use of optical measuring means; Interferometers; Reduction or prevention of errors; Testing; Calibration; Error reduction by correction of the measurement signal based on independently determined error sources, e.g. using a reference interferometer by calibration or testing of interferometer of the detector

Recent Application in this class:
#1
20250383193
2025-12-18

IMAGE-PLANE SELF-CALIBRATION IN INTERFEROMETRY USING CLOSED TRIAD IMAGING

#2
20250369744
2025-12-04

MICROSCOPE INCLUDING INTERFEROMETER

#3
20240426594
2024-12-26

REFLECTIVE CO-AXIAL INTERFEROMETER SYSTEMS AND METHODS THEREOF

#4
20230142333
2023-05-11

Determination of measurement error in an etalon

#5
20230133662
2023-05-04

Method for calibrating one or more optical sensors of a laser machining head, laser machining head, and laser machining system

#6
20210262778
2021-08-26

Systems having light source with extended spectrum for semiconductor chip surface topography metrology

#7
20210123716
2021-04-29

Common path mode fiber tip diffraction interferometer for wavefront measurement

#8
20200178791
2020-06-11

Ophthalmic apparatus

#9
20200003544
2020-01-02

Combined workpiece holder and calibration profile configuration for precision surface profile measurement

#10
20190368860
2019-12-05

Real-time normalization apparatus and method of phase generated carrier demodulation in sinusoidal phase modulation interferometer

#11
20180306569
2018-10-25

Intensity Noise Reduction Methods and Apparatus for Interferometric Sensing and Imaging Systems

#12
20150153157
2015-06-04

Intensity noise reduction methods and apparatus for interferometric sensing and imaging systems

#13
20150057958
2015-02-26

Calibration jig for optical tomographic imaging apparatus and method for generating a calibration conversion table

#14
20140098375
2014-04-10

Position monitoring system with reduced noise

#15
20130222813
2013-08-29

Calibration jig for optical tomographic imaging apparatus and method for generating a calibration conversion table

#16
20130182259
2013-07-18

System and method for calibrated spectral domain optical coherence tomography and low coherence interferometry

#17
20130128267
2013-05-23

Automatic calibration of fourier-domain optical coherence tomography systems

#18
20110228280
2011-09-22

Intensity noise reduction methods and apparatus for interferometric sensing and imaging systems

#19
20110199615
2011-08-18

OPTICAL COHERENCE TOMOGRAPHIC IMAGING APPARATUS

#20
20110157597
2011-06-30

SWEPT SOURCE OPTICAL COHERENCE TOMOGRAPHY (SS-OCT) SYSTEM AND METHOD FOR PROCESSING OPTICAL IMAGING DATA

#21
20100302549
2010-12-02

Fiber optic interferometric sensor array with increased multiplexing density

#22
20100134800
2010-06-03

Method for calibrating interpixel gains of an interferometer

#23
20100134786
2010-06-03

Interferometer with multiple modes of operation for determining characteristics of an object surface

#24
20090261240
2009-10-22

Calibration jig for optical tomographic imaging apparatus and method for generating a calibration conversion table

#25
20090153839
2009-06-18

Partial coherence interferometer with measurement ambiguity resolution

#26
20080088849
2008-04-17

Interferometry for determining characteristics of an object surface, with spatially coherent illumination

#27
20070263215
2007-11-15

Means and methods for signal validation for sizing spherical objects

#28
20060158659
2006-07-20

Interferometer for determining characteristics of an object surface

#29
20060158658
2006-07-20

Interferometer with multiple modes of operation for determining characteristics of an object surface

#30
20060158657
2006-07-20

Interferometer for determining characteristics of an object surface, including processing and calibration

#31
20060061771
2006-03-23

Compensation for effects of beam misalignments in interferometer metrology systems

#32
20050254058
2005-11-17

Low coherence interferometry utilizing magnitude