ClassID:

164186

G01B9/02027 - page 2 - CPC Classification

Classification description:

Instruments as specified in the subgroups and characterised by the use of optical measuring means; Interferometers characterised by the beam path configuration Two or more interferometric channels or interferometers

Recent Application in this class:
#301
20080062405
2008-03-13

Compensation of effects of atmospheric perturbations in optical metrology

#302
20080043246
2008-02-21

Multi-axis interferometer system using independent, single axis interferometers

#303
20080043245
2008-02-21

Methods and apparatus for measuring multiple Fabry-Perot gaps

#304
20080013095
2008-01-17

Fiber optic interferometric position sensor and measurement method thereof

#305
20080013078
2008-01-17

Optical mapping apparatus with optimized OCT configuration

#306
20070291274
2007-12-20

Interferometric Measuring System

#307
20070242278
2007-10-18

Size difference measuring method and size difference measuring apparatus

#308
20070233396
2007-10-04

Method and apparatus for optical imaging via spectral encoding

#309
20070229842
2007-10-04

Dual polarization interferometers for measuring opposite sides of a workpiece

#310
20070229801
2007-10-04

Arrangements and methods for providing multimodality microscopic imaging of one or more biological structures

#311
20070188767
2007-08-16

Optics system for an interferometer that uses a measuring mirror, a reference mirror and a beam deflector

#312
20070171425
2007-07-26

Interferometer system for monitoring an object

#313
20070127035
2007-06-07

Data age compensation with avalanche photodiode

#314
20070121196
2007-05-31

METHOD AND APPARATUS FOR METHOD FOR VIEWING AND ANALYZING OF ONE OR MORE BIOLOGICAL SAMPLES WITH PROGRESSIVELY INCREASING RESOLUTIONS

#315
20070109553
2007-05-17

Polarization-sensitive common path optical coherence reflectometry/tomography device

#316
20070103696
2007-05-10

APPARATUS FOR MEASURING THE POSITION OF AN OBJECT WITH A LASER INTERFEROMETER SYSTEM

#317
20070097379
2007-05-03

Integrated interference scanning method

#318
20070091316
2007-04-26

Multi-beam heterodyne laser doppler vibrometer

#319
20070086017
2007-04-19

Imaging systems using unpolarized light and related methods and controllers

#320
20070086016
2007-04-19

Interferometer using integrated retarders to reduce physical volume

#321
20070081236
2007-04-12

Method and apparatus for optical imaging via spectral encoding

#322
20070076223
2007-04-05

Optical Mapping Apparatus with Optimized OCT Configuration

#323
20070076216
2007-04-05

Multi-axis interferometer system using independent, single axis interferometers

#324
20070064240
2007-03-22

Angle interferometers

#325
20070058173
2007-03-15

Position-measuring device

#326
20070024859
2007-02-01

Method for determining the refractive index during interferometric length measurement and interferometric arrangement therefor

#327
20060290943
2006-12-28

High precision interferometer apparatus employing a grating beamsplitter

#328
20060290942
2006-12-28

Free-form optical surface measuring apparatus and method

#329
20060268281
2006-11-30

Rotation and translation measurement

#330
20060256346
2006-11-16

Compensation of turbulent effects of gas in measurement paths of multi-axis interferometers

#331
20060187464
2006-08-24

Interferometry systems and methods of using interferometry systems

#332
20060158659
2006-07-20

Interferometer for determining characteristics of an object surface

#333
20060158658
2006-07-20

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

#334
20060158657
2006-07-20

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

#335
20060139656
2006-06-29

Overlapping common-path interferometers for two-sided measurement

#336
20060132790
2006-06-22

Optical coherence tomography with 3d coherence scanning

#337
20060114468
2006-06-01

Interferometer system, signal processing method in interferometer system, and stage using signal processing

#338
20060109479
2006-05-25

Fiber optic interferometric position sensor and measurement method thereof

#339
20060098208
2006-05-11

System and method for surface profiling a target object

#340
20060087659
2006-04-27

Low walk-off interferometer

#341
20060082781
2006-04-20

Optical image measuring apparatus

#342
20060077396
2006-04-13

Interferometer systems for measuring displacement and exposure systems using the same

#343
20060077395
2006-04-13

Optical image measuring apparatus and optical image measuring method

#344
20060072119
2006-04-06

Error correction in interferometry systems

#345
20060061770
2006-03-23

Heterodyning time resolution boosting method and system

#346
20060055939
2006-03-16

Optical image measuring apparatus

#347
20060033934
2006-02-16

Method and apparatus for interferometric measurement of components with large aspect ratios

#348
20060028652
2006-02-09

Optical image measuring apparatus and optical image measuring method

#349
20060001887
2006-01-05

Interferometric optical assemblies and systems including interferometric optical assemblies

#350
20050264820
2005-12-01

Optical mapping apparatus with optimized OCT configuration

#351
20050259270
2005-11-24

Fiberoptic fabry-perot optical processor

#352
20050248772
2005-11-10

Interferometry systems and methods of using interferometry systems

#353
20050248771
2005-11-10

Lithographic interferometer system with an absolute measurement subsystem and differential measurement subsystem and method thereof

#354
20050244096
2005-11-03

Interferometric signal conditioner for measurement of absolute static displacements and dynamic displacements of a Fabry-Perot interferometer

#355
20050237536
2005-10-27

Interferometry systems and methods of using interferometry systems

#356
20050231730
2005-10-20

Interferometric signal conditioner for measurement of the absolute length of gaps in a fiber optic Fabry-Perot interferometer

#357
20050213105
2005-09-29

Optical beam shearing apparatus

#358
20050162664
2005-07-28

Compensation for errors in off-axis interferometric measurements

#359
20050140983
2005-06-30

Device for high-accuracy measurement of dimensional changes

#360
20050140981
2005-06-30

Measurement of optical properties

#361
20050128488
2005-06-16

Method and apparatus for three-dimensional spectrally encoded imaging

#362
20050111005
2005-05-26

Integrated plane mirror and differential plane mirror interferometer system

#363
20050062981
2005-03-24

Apparatus for measuring two-dimensional displacement

#364
20050041254
2005-02-24

System for rotation measurement with laser interferometry

#365
20050007601
2005-01-13

Optical characterization of surfaces and plates

#366
20050002040
2005-01-06

Lithographic apparatus, device manufacturing method, and computer program

#367
19050445
2025-08-19

Hybrid displacement measuring device

#368
17502289
2023-01-31

Differential height measurement using interstitial mirror plate

#369
17039539
2021-12-28

All-optical ultrasonic detection device based on light-induced ultrasound and laser interference

#370
16990133
2022-01-11

Heterodyne photonic integrated circuit for absolute metrology

#371
15944825
2019-08-20

Apparatus for a dynamic multi-axis heterodyne interferometric vibrometer

#372
15914445
2019-02-19

Multi-probe gauge for slab characterization

#373
15789892
2019-05-28

Super-PIC SPIDER

#374
14043202
2016-02-23

Generating an image using an active optical interference system