ClassID:

164895

G01D5/38 - CPC Classification

Classification description:

Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infra-red, visible, or ultra-violet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells; Forming the light into pulses by diffraction gratings

Recent Application in this class:
#1
20260153366
2026-06-04

FIBER OPTIC SENSOR AND MEASUREMENT METHOD, APPARATUS AND STORAGE MEDIUM

#2
20260036449
2026-02-05

PHOTOELECTRIC DETECTION DEVICE AND OPTICAL ENCODER

#3
20250044130
2025-02-06

OPTICAL POSITION-MEASURING DEVICE

#4
20240240974
2024-07-18

SELF-CORRECTING ASSEMBLABLE OPTICAL FIBER SENSING SYSTEM FOR DISPLACEMENT FIELD AND CORRECTION METHOD THEREOF

#5
20240175729
2024-05-30

OPTICAL ENCODER

#6
20240159147
2024-05-16

Performance Monitoring System For Disc Cutter Of Tunnel Boring Machine

#7
20240060768
2024-02-22

Optical Displacement Sensor

#8
20220317581
2022-10-06

Measurement device and measurement method, exposure apparatus and exposure method, and device manufacturing method

#9
20220228890
2022-07-21

Heterodyne two-dimensional grating measuring device and measuring method thereof

#10
20220214193
2022-07-07

Displacement measuring apparatus, displacement measuring method and photolithography device

#11
20210381859
2021-12-09

Scale and method of manufacturing the same

#12
20210348954
2021-11-11

Optical encoder and control apparatus for receiving light that forms moire fringes from a grating pattern

#13
20210255008
2021-08-19

Optical position measuring device

#14
20210247216
2021-08-12

Cantilever linear motion reference device employing two-layer air suspension

#15
20210247177
2021-08-12

Optical displacement sensing system

#16
20210215861
2021-07-15

Smooth surface diffraction grating lens and method for manufacturing the same

#17
20210181643
2021-06-17

Two-dimensional position encoder

#18
20210173080
2021-06-10

Optical position-measurement device with varying focal length along a transverse direction

#19
20210172766
2021-06-10

Optical rotary encoder

#20
20210148733
2021-05-20

Position encoder

#21
20210048566
2021-02-18

OBJECT DETECTION DEVICE AND PHOTODETECTOR

#22
20210018313
2021-01-21

Detection device

#23
20200378804
2020-12-03

GRATING DISC AND FEEDBACK SYSTEM

#24
20200363240
2020-11-19

Optical encoder system and method

#25
20200363193
2020-11-19

Optical position-measuring device

#26
20200225592
2020-07-16

MEASUREMENT DEVICE AND MEASUREMENT METHOD, EXPOSURE APPARATUS AND EXPOSURE METHOD, AND DEVICE MANUFACTURING METHOD

#27
20200192232
2020-06-18

Exposure apparatus, flat panel display manufacturing method, and device manufacturing method

#28
20200173816
2020-06-04

Method and Apparatus For Configurable Photodetector Array Patterning For Optical Encoders

#29
20200158494
2020-05-21

Displacement detection device

#30
20200116472
2020-04-16

Optical displacement sensing system

#31
20200011661
2020-01-09

Optical angle sensor

#32
20190285995
2019-09-19

Measurement device and measurement method, exposure apparatus and exposure method, and device manufacturing method

#33
20190265077
2019-08-29

Contamination and defect resistant rotary optical encoder configuration including a rotary scale with yawed scale grating bars and structured illumination generating arrangement with a beam deflector configuration

#34
20190234770
2019-08-01

Indexed optical encoder

#35
20190204119
2019-07-04

SCALE AND MANUFACTURING METHOD OF THE SAME

#36
20190195662
2019-06-27

Optical encoder system and method

#37
20190187572
2019-06-20

Two-dimensional position encoder

#38
20190186957
2019-06-20

Scale and manufacturing method of the same

#39
20190154726
2019-05-23

Displacement sensor device and system

#40
20190145799
2019-05-16

Optical rotation angle measuring system

#41
20190128705
2019-05-02

Optical encoder and measurement device including the same

#42
20190063959
2019-02-28

Measurement method and encoder device, and exposure method and device

#43
20190041244
2019-02-07

Measuring apparatus and method, processing apparatus and method, pattern forming apparatus and method, exposure apparatus and method, and device manufacturing method

#44
20190041243
2019-02-07

Scanning reticle including a grating formed in a substrate for an optical position measuring device

#45
20180299300
2018-10-18

Displacement encoder

#46
20180266852
2018-09-20

Method and apparatus for configurable photodetector array patterning for optical encoders

#47
20180259368
2018-09-13

Measurement method and encoder device, and exposure method and device

#48
20180216972
2018-08-02

Encoder apparatus that includes a scale and a readhead that are movable relative to each other configured to reduce the adverse effect of undesirable frequencies in the scale signal to reduce the encoder sub-divisional error

#49
20180209824
2018-07-26

Optical element

#50
20180209821
2018-07-26

Position-measuring device

#51
20180202842
2018-07-19

Encoder device, method for measuring moving amount, optical apparatus, exposure apparatus, exposure method and method for producing device

#52
20180172433
2018-06-21

Optical position-measuring device

#53
20180129144
2018-05-10

Measurement device and measurement method, exposure apparatus and exposure method, and device manufacturing method

#54
20180128653
2018-05-10

Transparent-block encoder head with isotropic wedged elements

#55
20180113008
2018-04-26

Optical encoding device including an encoding disc having diffracting patterns

#56
20180066966
2018-03-08

DISPLACEMENT MEASURING DEVICE AND METHOD OF MEASURING DISPLACEMENT

#57
20180061627
2018-03-01

Encoder head with birefringent elements for forming imperfect retroreflection and exposure system utilizing the same

#58
20180017373
2018-01-18

Displacement detecting device

#59
20170350736
2017-12-07

Measuring apparatus and method, processing apparatus and method, pattern forming apparatus and method, exposure apparatus and method, and device manufacturing method

#60
20170350689
2017-12-07

Displacement detection apparatus

#61
20170343391
2017-11-30

Measuring apparatus and method, processing apparatus and method, pattern forming apparatus and method, exposure apparatus and method, and device manufacturing method

#62
20170343390
2017-11-30

Encoder, position measurement system and lithographic apparatus involving an enclosing device

#63
20170329217
2017-11-16

Position detector, position detection method, imprint apparatus, and product manufacturing method

#64
20170292860
2017-10-12

Optical system with a frustrated isotropic block

#65
20170261351
2017-09-14

Position detection apparatus, machine tool apparatus, and exposure apparatus

#66
20170211951
2017-07-27

Scale and position-measuring device having such a scale

#67
20170211923
2017-07-27

Optical position-measuring device having grating fields with different step heights

#68
20170153129
2017-06-01

Encoder including an origin position detection function

#69
20170090079
2017-03-30

Optical layer system

#70
20170030745
2017-02-02

Displacement detecting device

#71
20170030744
2017-02-02

Displacement detecting device by light retroreflectance having first and second retroreflecting units with a common light receiving unit

#72
20170016931
2017-01-19

Displacement sensor device and system

#73
20160363464
2016-12-15

Optical encoder

#74
20160341576
2016-11-24

Light source array used in an illumination portion of an optical encoder

#75
20160245673
2016-08-25

Measurement encoder

#76
20160245642
2016-08-25

Optical position-measuring device

#77
20160231144
2016-08-11

Reference mark detector arrangement

#78
20160223317
2016-08-04

Displacement detection apparatus

#79
20160216101
2016-07-28

Optical unit and displacement measuring device

#80
20160202616
2016-07-14

Measuring apparatus and method, processing apparatus and method, pattern forming apparatus and method, exposure apparatus and method, and device manufacturing method

#81
20160138945
2016-05-19

Illumination portion for an optical encoder

#82
20160116757
2016-04-28

Optical encoder

#83
20160116305
2016-04-28

Displacement measurement device and displacement measurement method

#84
20160102999
2016-04-14

Interferometric encoder systems having at least partially overlapping diffracted beams

#85
20160025522
2016-01-28

Method of assisted mounting and error compensation for absolute grating ruler

#86
20150338205
2015-11-26

Heterodyne grating interferometer displacement measurement system

#87
20150316856
2015-11-05

Position measurement system, grating for a position measurement system and method

#88
20150308865
2015-10-29

Optical element

#89
20150292913
2015-10-15

Double pass interferometric encoder system

#90
20150292870
2015-10-15

Displacement detecting device

#91
20150285662
2015-10-08

Optical encoder and apparatus provided therewith

#92
20150268031
2015-09-24

Dual-frequency grating interferometer displacement measurement system

#93
20150227060
2015-08-13

Stage system and lithographic apparatus comprising such stage system

#94
20150198898
2015-07-16

Measuring apparatus and method, processing apparatus and method, pattern forming apparatus and method, exposure apparatus and method, and device manufacturing method

#95
20150160044
2015-06-11

Measurement method and encoder device, and exposure method and device

#96
20150146217
2015-05-28

Position-measuring device

#97
20150116731
2015-04-30

Device for position determination

#98
20150108337
2015-04-23

Encoder head designs

#99
20150098094
2015-04-09

Measuring graduation and photoelectric position measuring device having the same

#100
20150098090
2015-04-09

Optical position-measuring device

#101
20150070711
2015-03-12

Optical position measuring device

#102
20150062553
2015-03-05

Detection apparatus, lithography apparatus and method of manufacturing article

#103
20140374579
2014-12-25

Two-dimensional encoder system and method

#104
20140346694
2014-11-27

Position detection apparatus, imprint apparatus, and position detection method

#105
20140339405
2014-11-20

Reference signal generation apparatus and reference signal generation system

#106
20140339404
2014-11-20

Reference signal generation apparatus and reference signal generation system

#107
20140218746
2014-08-07

Optical position-measuring device

#108
20140195193
2014-07-10

Displacement detecting device and scale

#109
20140185057
2014-07-03

Optical position-measuring device

#110
20140151540
2014-06-05

Position-measuring device

#111
20140132962
2014-05-15

Position detector and light deflection apparatus

#112
20140132124
2014-05-15

Servomotor production method, servomotor production device, servomotor, and encoder

#113
20140103914
2014-04-17

Displacement detection apparatus

#114
20140092393
2014-04-03

Displacement measurement apparatus and displacement measurement method

#115
20140049782
2014-02-20

Interferometric encoder systems

#116
20130335750
2013-12-19

Position-measuring device

#117
20130278914
2013-10-24

Non-harmonic cyclic error compensation in interferometric encoder systems

#118
20130277540
2013-10-24

Multiple wavelength configuration for an optical encoder readhead including dual optical path region with an optical path length difference

#119
20130271773
2013-10-17

Displacement measurement device, displacement measurement method, and displacement measurement program

#120
20130194586
2013-08-01

System for detecting motion, lithographic apparatus and device manufacturing method

#121
20130194584
2013-08-01

Position-measuring device and system having a plurality of position-measuring devices

#122
20130169209
2013-07-04

Encoder, servomotor, and motor unit

#123
20130128255
2013-05-23

Encoder device, method for measuring moving amount, optical apparatus, exposure apparatus, exposure method and method for producing device

#124
20130120763
2013-05-16

Measurement system of a light source in space

#125
20130114062
2013-05-09

Compact encoder head for interferometric encoder system

#126
20130114061
2013-05-09

Double pass interferometric encoder system

#127
20130105675
2013-05-02

Displacement detecting device, displacement detecting method, and computer-readable medium

#128
20130100459
2013-04-25

Detector, imprint apparatus, and article manufacturing method

#129
20130063732
2013-03-14

Rotary position measuring instrument

#130
20130048842
2013-02-28

Measurement system and method utilizing high contrast encoder head for measuring relative movement between objects

#131
20130019652
2013-01-24

Index error estimating apparatus, index error calibrating apparatus, and index error estimating method

#132
20130015338
2013-01-17

Method for working out the angular position of a rotating element and device for carrying out such a method

#133
20130001412
2013-01-03

OPTICAL ENCODER INCLUDING PASSIVE READHEAD WITH REMOTE CONTACTLESS EXCITATION AND SIGNAL SENSING

#134
20130001411
2013-01-03

Optical encoder having a scale comprising a light guiding portion with reflection surfaces and a light guiding function

#135
20120328725
2012-12-27

Position detection apparatus, imprint apparatus, and position detection method

#136
20120312972
2012-12-13

Optical encoder including displacement sensing normal to the encoder scale grating surface

#137
20120293809
2012-11-22

Position measuring device

#138
20120292539
2012-11-22

ENCODER

#139
20120292493
2012-11-22

Optical position-measuring device

#140
20120287441
2012-11-15

Displacement detecting device with a polarization change to a twice-diffracted beam

#141
20120274948
2012-11-01

Absolute position encoder

#142
20120257214
2012-10-11

Optical displacement measurement device with optimization of the protective film

#143
20120250031
2012-10-04

Interferometric measurement of displacement in axial direction of a grating

#144
20120193523
2012-08-02

Optical encoder with misalignment detection and adjustment method associated therewith

#145
20120176629
2012-07-12

Remote displacement sensor, including an optical strain gauge, an assembly and system therewith

#146
20120170048
2012-07-05

Interferometric encoder systems

#147
20120162663
2012-06-28

Optical encoder readhead configuration with phosphor layer

#148
20120162658
2012-06-28

Interferometric path and/or rotation measuring device

#149
20120162646
2012-06-28

Optical position-measuring device

#150
20120154805
2012-06-21

Optical position measuring instrument

#151
20120154780
2012-06-21

Cyclic error compensation in interferometric encoder systems

#152
20120112050
2012-05-10

Optical position-measuring device having two crossed scales

#153
20120105862
2012-05-03

Optical angle-measuring device with combined radial-circular grating

#154
20120093297
2012-04-19

Imaging apparatus

#155
20120050748
2012-03-01

Displacement detecting device

#156
20120032067
2012-02-09

Two dimensional encoder system and method

#157
20110310397
2011-12-22

Position detection device

#158
20110310396
2011-12-22

Displacement detecting device

#159
20110299052
2011-12-08

Measuring apparatus and method, processing apparatus and method, pattern forming apparatus and method, exposure apparatus and method, and device manufacturing method

#160
20110298411
2011-12-08

Encoder, servo unit and encoder manufacturing method

#161
20110286004
2011-11-24

Optical position measuring instrument

#162
20110272565
2011-11-10

Encoder that detects positional information of a moving body generating interference fringes that move in opposite directions

#163
20110255096
2011-10-20

Interferometric encoder systems

#164
20110249270
2011-10-13

HETERODYNE INTERFEROMETRY DISPLACEMENT MEASUREMENT APPARATUS

#165
20110235051
2011-09-29

Device for interferential distance measurement

#166
20110229151
2011-09-22

Photoelectric encoder

#167
20110222073
2011-09-15

OPTICAL ENCODER AND DISPLACEMENT MEASUREMENT APPARATUS HAVING THE SAME

#168
20110192964
2011-08-11

Encoder that optically detects positional information of a moving body from different optical paths lengths

#169
20110188055
2011-08-04

Optical position-measuring device

#170
20110157599
2011-06-30

Uses of electromagnetic interference patterns

#171
20110141480
2011-06-16

Position-measuring device

#172
20110141451
2011-06-16

Displacement measurement device, exposure apparatus, and working device

#173
20110122422
2011-05-26

Signal processing apparatus used for optical signal output device and optical displacement detection system

#174
20110116066
2011-05-19

Lithographic apparatus and device manufacturing method

#175
20110109917
2011-05-12

Optical position measuring device

#176
20110095171
2011-04-28

Photoelectric encoder with optical grating

#177
20110069390
2011-03-24

Rotary encoder, rotary motor, rotary motor system, disk, and method of manufacturing rotary encoder

#178
20110063622
2011-03-17

Optical encoder for obtaining displacement information of object

#179
20100309459
2010-12-09

Angle sensor, system and method employing guided-mode resonance

#180
20100284022
2010-11-11

Displacement measurement system and method thereof

#181
20100259768
2010-10-14

DISPLACEMENT DEVICE WITH PRECISION MEASUREMENT

#182
20100245841
2010-09-30

Cylindrical grating rotation sensor

#183
20100243871
2010-09-30

Optical encoder for detecting the relative displacement between an encoder scale and an encoder head

#184
20100213358
2010-08-26

Optical encoder and method for measuring displacement information using multiple optical tracks of diffractive optical regions having different periodicities

#185
20100208271
2010-08-19

Origin detection apparatus, displacement measurement apparatus and optical apparatus

#186
20100195118
2010-08-05

Scale, displacement detection apparatus provided with the same, and imaging apparatus provided with the same

#187
20100176282
2010-07-15

Encoder that optically detects positional information of a movable body by changing a path length through periodic oscillation of an optical element

#188
20100165359
2010-07-01

Optical encoder

#189
20100079767
2010-04-01

Displacement measurement apparatus

#190
20100072348
2010-03-25

Optical encoder comprising a main and reference light receiving portions with a three-phase signal generation for detecting displacement and direction of displacement of an incremental grating track

#191
20100060899
2010-03-11

Displacement measurement system and method of use

#192
20100053586
2010-03-04

Displacement measurement system having a prism, for displacement measurement between two or more gratings

#193
20090284723
2009-11-19

Stage device, pattern formation apparatus, exposure apparatus, stage drive method, exposure method, and device manufacturing method

#194
20090279100
2009-11-12

SCALE AND READHEAD

#195
20090268210
2009-10-29

Compact Littrow encoder

#196
20090267781
2009-10-29

ENCODER

#197
20090262321
2009-10-22

Position measuring system and position measuring method, Movable body apparatus, movable body drive method, exposure apparatus and exposure method, pattern forming apparatus, and device manufacturing method

#198
20090261233
2009-10-22

Non-contact displacement detecting device using optical astigmatism

#199
20090257066
2009-10-15

Optical displacement measuring device

#200
20090242742
2009-10-01

Optical encoder having a stray-light reduction element for reducing strat-light

#201
20090195792
2009-08-06

Optical position measuring arrangement

#202
20090180125
2009-07-16

Rotary encoder apparatus

#203
20090166519
2009-07-02

Intensity-based optical encoder using digital diffractive optic regions

#204
20090147265
2009-06-11

DETECTION SYSTEM FOR DETECTING TRANSLATIONS OF A BODY

#205
20090135388
2009-05-28

Movable-body apparatus, exposure apparatus, exposure method, and device manufacturing method

#206
20090116783
2009-05-07

Optical sensor

#207
20090115987
2009-05-07

Position measurement system and lithographic apparatus

#208
20090059209
2009-03-05

LOCK-IN DEMODULATION TECHNIQUE FOR OPTICAL INTERROGATION OF A GRATING SENSOR

#209
20090040529
2009-02-12

Displacement-measuring optical scale and optical encoder using same

#210
20090027687
2009-01-29

Fixed-point detector and displacement-measuring apparatus

#211
20090001260
2009-01-01

System for detecting motion of a body

#212
20080316493
2008-12-25

Surface reflection encoder scale and surface reflection encoder using the same

#213
20080304079
2008-12-11

Displacement measurement sensor head and system having measurement sub-beams comprising zeroth order and first order diffraction components

#214
20080297809
2008-12-04

Optical position measuring arrangement

#215
20080285058
2008-11-20

Optical position-measuring device

#216
20080285050
2008-11-20

Position-measuring device with movable deflection device and grating and with stationary grating, light source, and detector

#217
20080282566
2008-11-20

Position-measuring device for measuring a position of an object relative to a tool having a tool centerpoint

#218
20080258050
2008-10-23

Positional information detecting device

#219
20080251703
2008-10-16

Triple grating optical encoder and modified triple grating optical encoder for displacement detection

#220
20080225262
2008-09-18

Displacement measurement system

#221
20080186491
2008-08-07

Rotary encoders

#222
20080185506
2008-08-07

Encoder

#223
20080142688
2008-06-19

Reflection Type Optical Detector

#224
20080117440
2008-05-22

Position-measuring device

#225
20080116362
2008-05-22

One-dimensional phase contrast microscopy with a traveling lens generated by a step function change

#226
20080074672
2008-03-27

High Resolution position coder

#227
20080067333
2008-03-20

Position-measuring device

#228
20080062432
2008-03-13

Position measuring arrangement

#229
20080062431
2008-03-13

Interferometric optical position encoder employing spatial filtering of diffraction orders for improved accuracy

#230
20080048104
2008-02-28

Optical encoder applying substantially parallel light beams and three periodic optical elements

#231
20080043212
2008-02-21

Measuring apparatus and method, processing apparatus and method, pattern forming apparatus and method, exposure apparatus and method, and device manufacturing method

#232
20080042051
2008-02-21

Rotary optical encoder employing multiple subencoders with common reticle substrate

#233
20080024797
2008-01-31

Optical encoder including aperture with diffusion element and collimator lens

#234
20080024789
2008-01-31

Fiber-optic miniature encoder for fine pitch scales

#235
20080013105
2008-01-17

Scale reading apparatus

#236
20070271805
2007-11-29

Optical position measuring arrangement

#237
20070267571
2007-11-22

Encoder that optically detects positional information of a scale

#238
20070223007
2007-09-27

Displacement measurement systems lithographic apparatus and device manufacturing method

#239
20070215797
2007-09-20

Photoelectric encoder

#240
20070195334
2007-08-23

Displacement detection apparatus, polarization beam splitter, and diffraction grating

#241
20070187581
2007-08-16

Optical encoder

#242
20070153292
2007-07-05

Optical encoder having slanted optical detector elements for harmonic suppression

#243
20070147221
2007-06-28

Information carrier

#244
20070146722
2007-06-28

Littrow interferometer

#245
20070115479
2007-05-24

Light-receiving/emitting composite unit, method for manufacturing the same, and displacement detection device

#246
20070109556
2007-05-17

Methods and apparatus for reducing error in interferometric imaging measurements

#247
20070102630
2007-05-10

Optical encoder for measuring displacement

#248
20070058173
2007-03-15

Position-measuring device

#249
20070057168
2007-03-15

Photoelectric encoder

#250
20070047050
2007-03-01

Optical encoder and apparatus using optical encoder

#251
20070041024
2007-02-22

Sensor device and stage device

#252
20070028476
2007-02-08

Optical position measuring instrument

#253
20070024865
2007-02-01

OPTICAL ENCODER HAVING SLANTED OPTICAL DETECTOR ELEMENTS FOR HARMONIC SUPPRESSION

#254
20070018084
2007-01-25

Optical configuration for imaging-type optical encoders

#255
20070013920
2007-01-18

Position-measuring device

#256
20070001112
2007-01-04

Optical element, optical pickup device, and optical information recording and/or reproducing apparatus

#257
20060255252
2006-11-16

Triple grating optical encoder with light transmitting area in optical path

#258
20060250900
2006-11-09

Displacement detection apparatus, displacement measuring apparatus and fixed point detection apparatus

#259
20060227845
2006-10-12

Displacement sensor employing discrete light pulse detection

#260
20060203252
2006-09-14

Grating interference type optical encoder

#261
20060192092
2006-08-31

Optical encoder for improved detection of the absolute position of an origin point

#262
20060186324
2006-08-24

Optical encoders for position measurements

#263
20060145066
2006-07-06

Displacement detection apparatus, displacement gauging apparatus and fixed point detection apparatus

#264
20060140538
2006-06-29

Surface reflection type phase grating

#265
20060139654
2006-06-29

Displacement detector

#266
20060108515
2006-05-25

Displacement-measuring optical scale and optical encoder using same

#267
20060097141
2006-05-11

Photoelectric encoder using an incoherent semiconductor light source

#268
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