ClassID:

175601

G02F2203/48 - CPC Classification

Classification description:

Function characteristic Variable attenuator

Recent Application in this class:
#1
20260079348
2026-03-19

NEAR-EYE OPTICAL DISPLAY APPARATUS

#2
20260056427
2026-02-26

EYEWEAR WITH NON-POLARIZING AMBIENT LIGHT DIMMING

#3
20260003230
2026-01-01

DISPLAY APPARATUS AND LIGHT APPARATUS THEREOF

#4
20250208425
2025-06-26

GHOST IMAGE MITIGATION IN SEE-THROUGH DISPLAYS WITH PIXEL ARRAYS

#5
20250189860
2025-06-12

INTEGRATED VARIABLE OPTICAL ATTENUATOR

#6
20250180835
2025-06-05

OPTICAL ALIGNMENT SYSTEMS AND METHODS USING SILICON DIODES

#7
20250062833
2025-02-20

PHOTONIC PROCESSING SYSTEMS AND METHODS

#8
20250042136
2025-02-06

MULTI-MATERIAL LAMINATION

#9
20250014490
2025-01-09

CALIBRATION OF ELECTRICAL PARAMETERS IN OPTICALLY SWITCHABLE WINDOWS

#10
20240402566
2024-12-05

Wavelength Conversion Apparatus

#11
20240377658
2024-11-14

DIMMABLE WINDOW SYSTEMS AND METHODS

#12
20240323517
2024-09-26

DYNAMIC VISION SENSING SYSTEM WITH A STATIC CAPTURING MODE

#13
20240241410
2024-07-18

Display module with circuit boards

#14
20240219794
2024-07-04

PROJECTION USING LIQUID CRYSTAL POLARIZATION GRATINGS TO MODULATE LIGHT

#15
20240219769
2024-07-04

DISPLAY DEVICE

#16
20240210750
2024-06-27

LIGHT CONTROL PANEL, DISPLAY MODULE, AND DISPLAY APPARATUS

#17
20240120707
2024-04-11

Integrated laser and modulator systems

#18
20240061299
2024-02-22

TUNABLE ATTENUATION OF LIGHT TRANSMISSION ARTIFACTS IN WEARABLE DISPLAYS

#19
20240036398
2024-02-01

DISPLAY APPARATUS AND LIGHT APPARATUS THEREOF

#20
20240027804
2024-01-25

EYEWEAR WITH NON-POLARIZING AMBIENT LIGHT DIMMING

#21
20240011834
2024-01-11

Single-photon emitter using frequency comb

#22
20240011829
2024-01-11

Spectrally multiplexed single-photon emitter

#23
20230418098
2023-12-28

Microstructured liquid crystal film for automotive glass

#24
20230412279
2023-12-21

Photonic processing systems and methods

#25
20230408882
2023-12-21

OPTICAL ATTENUATOR

#26
20230408857
2023-12-21

Liquid crystal/polymer composite electrically controlled dimming films and preparation methods thereof

#27
20230408825
2023-12-21

NEAR-EYE OPTICAL DISPLAY APPARATUS

#28
20230400738
2023-12-14

Light adjustment device having a panel unit including light adjustment panels

#29
20230396865
2023-12-07

Digital display welding mask with long-exposure image capture

#30
20230314870
2023-10-05

Display apparatus and light source apparatus thereof

#31
20230314857
2023-10-05

Display device

#32
20230314856
2023-10-05

DISPLAY DEVICE

#33
20230314807
2023-10-05

ELECTRONIC DEVICE

#34
20230306918
2023-09-28

DEVICE FOR DISPLAYING INFORMATION, IN PARTICULAR FOR A VEHICLE

#35
20230280608
2023-09-07

Imaging apparatus

#36
20230273503
2023-08-31

ACTIVE OPTICAL RESONATOR FOR FREQUENCY CONVERSION

#37
20230266629
2023-08-24

Light control sheet

#38
20230236426
2023-07-27

Ghost image mitigation in see-through displays with pixel arrays

#39
20230221603
2023-07-13

Display device

#40
20230215875
2023-07-06

Display Apparatus

#41
20230213702
2023-07-06

ARRANGEMENT FOR CONVERTING LIGHT INTO ELECTRICAL ENERGY

#42
20230205030
2023-06-29

Liquid crystal composition and dimming device thereof

#43
20230185146
2023-06-15

PRIVACY FILM AND DISPLAY DEVICE

#44
20230185145
2023-06-15

Display device having wide viewing angle in sharing mode

#45
20230176426
2023-06-08

Laminated glass, and method for manufacturing laminated glass

#46
20230162695
2023-05-25

Global and local contrast control with brightness and shading adjustment of smart glass display

#47
20230161191
2023-05-25

Display device and manufacturing method thereof

#48
20230152651
2023-05-18

A MULTI-LAYER ASSEMBLY FOR PROVIDING A TARGETTED TRANSMITTED COLOR AND TARGETTED REFLECTIVE COLOR

#49
20230152616
2023-05-18

Intelligent window system and in-vehicle system

#50
20230152614
2023-05-18

Display device

#51
20230140960
2023-05-11

DISPLAY SYSTEM

#52
20230125258
2023-04-27

Augmented reality (AR) eyewear with a section of a fresnel reflector comprising individually-adjustable transmissive-reflective optical elements

#53
20230112469
2023-04-13

Nanocomposite particle and magnetron display device

#54
20230111777
2023-04-13

Liquid crystal display device and electronic equipment

#55
20230109680
2023-04-13

Dimming glass window and vehicle

#56
20230107582
2023-04-06

Display module and display apparatus

#57
20230054465
2023-02-23

UNIVERSAL SENSOR SYSTEM FOR AUTO DIMMING CONTROL FOR DIFFERENT SPECTRAL OUTPUTS

#58
20230053738
2023-02-23

Switchable light filter and use thereof

#59
20230039923
2023-02-09

Display device

#60
20230038730
2023-02-09

Dimming panel, production method for dimming panel and liquid crystal display device

#61
20230031286
2023-02-02

Display device

#62
20230020061
2023-01-19

VEHICLE MOUNTED VIRTUAL VISOR SYSTEM HAVING PREDICTIVE PRE-SHADING OF VISOR SEGMENTS

#63
20230019843
2023-01-19

Calibration of electrical parameters in optically switchable windows

#64
20230015959
2023-01-19

Display device

#65
20230011292
2023-01-12

Laser Irradiation Apparatus, Laser Irradiation Method, and Recording Medium Recording Program to be Readable

#66
20230006408
2023-01-05

Laser Irradiation Apparatus, Laser Irradiation Method, and Recording Medium Recording Program to be Readable

#67
20220413330
2022-12-29

Liquid crystal window bonding and sealing

#68
20220413326
2022-12-29

CONTROL SYSTEM FOR DIMMABLE FILM

#69
20220397783
2022-12-15

Display device

#70
20220382087
2022-12-01

Light shielding plate assembly and control method thereof, control device and vehicle

#71
20220375377
2022-11-24

Display device

#72
20220373748
2022-11-24

Waveguide structure and method for forming the same

#73
20220350189
2022-11-03

Display module with circut boards

#74
20220342251
2022-10-27

GLASS WITH FUNCTION OF REGULATION IN SECTIONS AND SYSTEM FOR REGULATING GLASS IN SECTIONS

#75
20220334225
2022-10-20

Light Source for Frequency-Modulated Continuous Wave (FMCW) LiDAR Device

#76
20220326557
2022-10-13

Display panel and manufacturing method of the same

#77
20220299799
2022-09-22

DIMMING GLASS CONTROL DEVICE AND DIMMING CONTROL SYSTEM

#78
20220291537
2022-09-15

Display device

#79
20220266662
2022-08-25

CONNECTION METHODS FOR POWER REMOVABLE AND/OR MOVABLE DIMMABLE DEVICE

#80
20220260848
2022-08-18

Electrochromic element, and lens unit and imaging apparatus including the same

#81
20220252907
2022-08-11

OPTICAL ALIGNMENT SYSTEMS AND METHODS USING SILICON DIODES

#82
20220252450
2022-08-11

Smart contact lens with ratiometric light change detection

#83
20220236618
2022-07-28

Heterogeneously integrated optical modulator and manufacturing method thereof

#84
20220197065
2022-06-23

Variable Infrared Attenuator With High Precision At High Attenuation

#85
20220187679
2022-06-16

Processor-controlled high harmonic optimization with optimal gas handling

#86
20220171223
2022-06-02

Display device

#87
20220146830
2022-05-12

Head-mounted display and glasses

#88
20220128845
2022-04-28

Methods of modulating light using liquid crystal polarization gratings

#89
20220113572
2022-04-14

Display panel and display device

#90
20220100021
2022-03-31

Light-adjusting glass and smart vehicle window

#91
20220094443
2022-03-24

Photonic processing systems and methods

#92
20220082873
2022-03-17

Information processing device

#93
20220075236
2022-03-10

Flexible variable emissivity electrochromic device and preparation method

#94
20220026719
2022-01-27

Ghost image mitigation in see-through displays with pixel arrays

#95
20220019123
2022-01-20

Dynamic neutral density filter

#96
20220019097
2022-01-20

Waveguide structure and method for forming the same

#97
20210405402
2021-12-30

Tunable attenuation of light transmission artifacts in wearable displays

#98
20210359763
2021-11-18

Monolithic integrated coherent transceiver

#99
20210333678
2021-10-28

Variable light transmission structures with improved optical properties

#100
20210321028
2021-10-14

Digital display welding mask with long-exposure image capture

#101
20210286205
2021-09-16

Display device

#102
20210244532
2021-08-12

In situ adjustable optical mask

#103
20210208437
2021-07-08

Light control device

#104
20210186411
2021-06-24

Transvaginal fast-scanning optical-resolution photoacoustic endoscopy

#105
20210165259
2021-06-03

Variable transmittance window and moving means comprising same

#106
20210141283
2021-05-13

SYSTEM AND METHOD FOR GENERATING MID-INFRARED OPTICAL FREQUENCY COMB BASED ON LITHIUM NIOBATE MICROCAVITY

#107
20210048676
2021-02-18

Ghost image mitigation in see-through displays with pixel arrays

#108
20210047882
2021-02-18

Tunable blinds for windows

#109
20210016640
2021-01-21

Optical impression of a PDLC vehicle pane through a combination of dark inner and outer stacks

#110
20200396007
2020-12-17

Photonic processing systems and methods

#111
20200371208
2020-11-26

Solid state lidar silicon photonics

#112
20200322057
2020-10-08

Monolithic integrated coherent transceiver

#113
20200266105
2020-08-20

Laser irradiation method and laser irradiation system

#114
20200264464
2020-08-20

Image processing apparatus

#115
20200233277
2020-07-23

Electrochromic element, optical filter, lens unit, image pickup apparatus, and window member

#116
20200201046
2020-06-25

Augmented reality optical device comprising a light attenuator that can reactively attenuate light

#117
20200177784
2020-06-04

Switched polarization imaging to detect display screen

#118
20200061975
2020-02-27

Calibration of electrical parameters in optically switchable windows

#119
20200008932
2020-01-09

In situ adjustable optical mask

#120
20190356394
2019-11-21

Photonic processing systems and methods

#121
20190346741
2019-11-14

Switchable imager lens cover

#122
20190346699
2019-11-14

Optical filter comprising a variable transmittance layer

#123
20190346679
2019-11-14

Variable attenuation of an illumination source

#124
20190318234
2019-10-17

Optical neuron

#125
20190318233
2019-10-17

Optical synapse

#126
20190235285
2019-08-01

Compact, energy efficient mach-zehnder interferometers and optical attenuators

#127
20190221148
2019-07-18

Calibration of electrical parameters in optically switchable windows

#128
20190206350
2019-07-04

Liquid crystal element and lighting apparatus

#129
20190196296
2019-06-27

Multimode interference based VPIN diode waveguides

#130
20190146296
2019-05-16

VARIABLE OPTICAL ATTENUATOR

#131
20190129208
2019-05-02

Transparent display system and display method thereof

#132
20190049817
2019-02-14

Display panel, method for manufacturing the same, and display device

#133
20190049813
2019-02-14

Electrochromic element

#134
20190028204
2019-01-24

Optical transmission module

#135
20190025624
2019-01-24

TWO MODE ELECTRO-OPTIC FILTER

#136
20190025614
2019-01-24

Method of controlling semiconductor optical amplifier and optical amplifying apparatus

#137
20190004387
2019-01-03

Addressable electro-optic device

#138
20180342849
2018-11-29

Laser apparatus and extreme ultraviolet light generating system

#139
20180341162
2018-11-29

Electrochromic device and imaging apparatus

#140
20180341129
2018-11-29

Optical attenuator

#141
20180284573
2018-10-04

Switchable imager lens cover

#142
20180284511
2018-10-04

Variable Reflective Device With Internal Video Monitor

#143
20180267292
2018-09-20

Light valve and display device

#144
20180259804
2018-09-13

Smart window system and control method therefor

#145
20180246350
2018-08-30

Graphene-based plasmonic slot electro-optical modulator

#146
20180226036
2018-08-09

Display device

#147
20180224677
2018-08-09

Optical filter comprising a variable transmittance layer

#148
20180210236
2018-07-26

Plateau-based control of the transmission of a variable transmission lens

#149
20180196390
2018-07-12

Gun sight with brightness control

#150
20180180909
2018-06-28

Optical transmitting apparatus and optical level control method

#151
20180173025
2018-06-21

Planar optical phase shifters with efficient heater placement

#152
20180173024
2018-06-21

Compact, energy efficient Mach-Zehnder interferometers and optical attenuators

#153
20180162203
2018-06-14

Location based adjustable windows

#154
20180079284
2018-03-22

Vehicle control device mounted on vehicle and method for controlling the vehicle

#155
20180011386
2018-01-11

Electrochromic element

#156
20170371222
2017-12-28

Thermal control of variable transmittance windows

#157
20170363898
2017-12-21

Light shielding device for vehicle that shields light from outside the vehicle

#158
20170322431
2017-11-09

Light-operated adjustable terahertz wave attenuator and use method thereof

#159
20170293193
2017-10-12

Electrochromic element, optical filter, lens unit, imaging device, and window component

#160
20170192299
2017-07-06

Switchable window having low emissivity (low-e) coating as conductive layer and/or method of making the same

#161
20170192257
2017-07-06

Optical filter comprising a variable transmittance layer

#162
20170168325
2017-06-15

Variable optical attenuator with integrated control based on strongly correlated materials

#163
20170168243
2017-06-15

Variable optical attenuator

#164
20170156850
2017-06-08

In situ adjustable optical mask

#165
20170097554
2017-04-06

Light-modulating element and smart glass

#166
20170075151
2017-03-16

Display and fabricating method thereof, and fabricating method of photosensitive film

#167
20170063348
2017-03-02

Programmable resistive elements as variable tuning elements

#168
20170019181
2017-01-19

Optical component

#169
20160349572
2016-12-01

Display device

#170
20160291440
2016-10-06

Controllable light-transmissive element

#171
20160282559
2016-09-29

Optical device

#172
20160085108
2016-03-24

Device for regulating the passage of energy

#173
20160033807
2016-02-04

Device for regulating the passage of energy

#174
20150323825
2015-11-12

Variable light attenuating devices and arrangements

#175
20150153625
2015-06-04

Electronic book

#176
20150139667
2015-05-21

Optical receiver circuit

#177
20150109651
2015-04-23

Optical filter comprising a variable transmittance layer

#178
20140111844
2014-04-24

Thin film emitter-absorber apparatus and methods

#179
20140055716
2014-02-27

Liquid-crystal-lens type light-modulating apparatus and liquid crystal display having the same

#180
20130343694
2013-12-26

Optical gate switch

#181
20120170099
2012-07-05

Large aperture polymer electro-optic shutter device and method of manufacturing same

#182
20120140309
2012-06-07

Optical image modulator and method of manufacturing the same

#183
20120087613
2012-04-12

Thermally controlled semiconductor optical waveguide

#184
20120081625
2012-04-05

Variable optical attenuator (VOA)

#185
20120038841
2012-02-16

Solar powered variable light attenuating devices and arrangements

#186
20110255821
2011-10-20

Optical component having a waveguide array heterostructure

#187
20110141393
2011-06-16

OPTICAL DEVICES

#188
20110091146
2011-04-21

Optical modulators employing charge state control of deep levels

#189
20100321756
2010-12-23

Large aperture polymer electro-optic shutter device and method of manufacturing same

#190
20100265282
2010-10-21

Driving apparatus for liquid crystal light modulator and variable optical attenuator employing driving apparatus

#191
20100142046
2010-06-10

Optical isolator, shutter, variable optical attenuator and modulator device

#192
20100021167
2010-01-28

Wavelength selecting switch

#193
20090147212
2009-06-11

Single control liquid crystal optical switch and attenuator

#194
20090103883
2009-04-23

Optical attenuator

#195
20090032831
2009-02-05

Optical waveguide apparatus and method for manufacturing the same

#196
20080284184
2008-11-20

Consumer post hole digger

#197
20080279231
2008-11-13

Optical limiter

#198
20080106783
2008-05-08

Methods for optical attenuation and switching optical beams

#199
20080037098
2008-02-14

Variable optical attenuator

#200
20080008421
2008-01-10

All-optical variable optical attenuator

#201
20070212012
2007-09-13

Planar lightwave circuit type variable optical attenuator

#202
20070201784
2007-08-30

Asymmetric directional coupler having a reduced drive voltage

#203
20070196047
2007-08-23

Method and apparatus for detecting multiple optical wave lengths

#204
20070172189
2007-07-26

Semiconductor Raman variable optical attenuator/amplifier and equalizer

#205
20070171120
2007-07-26

Thin film emitter-absorber apparatus and methods

#206
20070115211
2007-05-24

Liquid crystal shutter device for a camera

#207
20070070499
2007-03-29

Optical characteristic

#208
20070025660
2007-02-01

All-optical variable optical attenuator

#209
20070019287
2007-01-25

UV adjustable optical attenuator

#210
20060210232
2006-09-21

Planar waveguide-based variable optical attenuator

#211
20060197729
2006-09-07

Method and apparatus for driving liquid-crystal optical-modulation device

#212
20060153499
2006-07-13

Y-branch-based thermo-optic digital optical switches and variable optical attenuators with non-uniform heating

#213
20060133761
2006-06-22

Thermal gradient prism for active beam steering

#214
20060103778
2006-05-18

Multi-layer diffraction type polarizer and liquid crystal element

#215
20060056768
2006-03-16

Schemes for controlling optical signals in optically functional waveguide structures

#216
20060056767
2006-03-16

Schemes for controlling optical signals in optically functional waveguide structures

#217
20060051046
2006-03-09

Variable optical attenuator derived from sol-gel material and manufacturing method thereof

#218
20060051022
2006-03-09

Method and apparatus for detecting multiple optical wave lengths

#219
20060045424
2006-03-02

Normally dark Y-branch digital optical switches and variable optical attentuators

#220
20050259986
2005-11-24

Optical density changing element, optical element and photographing unit

#221
20050249455
2005-11-10

Optical switch having photonic crystal structure

#222
20050232570
2005-10-20

Variable optical attenuator and optical filter

#223
20050226590
2005-10-13

Variable optical attenuator based on rare earth doped glass

#224
20050213864
2005-09-29

SYSTEM, METHOD, AND COMPUTER PROGRAM PRODUCT FOR STRUCTURED WAVEGUIDE INCLUDING INTRA/INTER CONTACTING REGIONS

#225
20050207721
2005-09-22

Variable optical attenuator

#226
20050201704
2005-09-15

Apparatus, method, and computer program product for transverse waveguided display system

#227
20050195313
2005-09-08

Liquid crystal light control element, lens barrel, and imaging device

#228
20050195284
2005-09-08

Optical element changing optical density in response to electromagnetic wave

#229
20050185890
2005-08-25

Y-branch-based thermo-optic digital optical switches and variable optical attenuators with non-uniform heating

#230
20050180717
2005-08-18

Laser diode module

#231
20050180675
2005-08-18

Apparatus, method, and computer program product for structured waveguide including performance_enhancing bounding region

#232
20050157983
2005-07-21

Variable optical attenuator having a waveguide and an optically coupled layer with a power monitor

#233
20050146655
2005-07-07

Optical equalisation device and corresponding system

#234
20050141075
2005-06-30

Faraday rotation device and optical device using same

#235
20050135773
2005-06-23

Thermal gradient prism for active beam steering

#236
20050111812
2005-05-26

Optic system for light attenuation

#237
20050111784
2005-05-26

Variable optical attenuator systems

#238
20050111783
2005-05-26

Liquid crystal thermo-optic switch and element

#239
20050111073
2005-05-26

Integrated variable optical attenuator and related components

#240
20050084198
2005-04-21

Variable polarization plane rotator and optical device using same

#241
20050057701
2005-03-17

System and method for varying the reflectance or transmittance of light

#242
20050025447
2005-02-03

Multichannel optical attenuator for multiplexed signal

#243
20050002634
2005-01-06

Variable optical attenuator on an electro-optical layer

#244
17028057
2023-04-04

Single sideband laser system for atomic devices

#245
16831350
2023-01-03

Compact laser source with frequency modulators generating multiple lines

#246
15959564
2019-01-22

Electrochromic switch

#247
15651805
2019-05-14

Interior lighting system having window with band pass filter coordinated with broad/narrow band light source to provide privacy mode

#248
14807157
2016-12-06

Programmable resistive elements as variable tuning elements