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Class Information
Number: 359
Name: Optical: systems and elements >
Description: GENERAL STATEMENT OF THE CLASS SUBJECT MATTER


Class Number Class Name No. of Patents
359/885

Absorption filter

515
359/891

Filters in optical parallel (e.g., colors side-by-side, etc.)

224
359/886

Fluid

105
359/889

Movable in or out of optical path

188
359/888

Neutral or graded density

155
359/887

Sequentially additive

30
359/890

Superimposed or series

124
359/892

With support or frame

183
359/901

Acoustic holography

19
359/600

Barrel end eye guard (e.g., shield or cushion, etc.)

58
359/480

Binocular devices

101
359/481

Binocular loupe type

26
359/482

Reflected line of sight

44
359/591

Building interior illumination with reflected, refracted or predetermined angle of entrance of outside light

81
359/596

Slats or strips

51
359/592

Unitary light transmitting member comprising plural reflecting or refracting elements

59
359/594

Elements on two sides of member

15
359/593

Plural members in series

21
359/595

With internal reflections

31
359/597

With reflection

56
359/598

Internal reflection in single optical element

28
359/641

Collimating of light beam

301
359/362

Compound lens system

147
359/368

Microscope

972
359/382

Entire microscope adjustable along optical axis

68
359/383

Focus adjustment

149
359/385

Illuminator

614
359/386

Using polarized light

95
359/387

With annular lighting structure

111
359/389

With illumination and viewing paths coaxial at the image field

214
359/390

With illuminator support

105
359/388

With optical switching means

204
359/381

Imaging elements movable in and out of optical axis

227
359/370

Interference

86
359/371

Using polarized light

84
359/379

Spacing of optical elements axially adjustable

104
359/380

Variable magnification

151
359/391

Stage or slide carrier

200
359/392

Adjustable along optical axis

128
359/393

With plural transverse movements

177
359/395

With temperature control

33
359/394

With turntable

34
359/396

Transparent slide

85
359/397

Reference lines or grids

36
359/398

Specimen cavity or chamber

136
359/372

With plural optical axes

110
359/374

Plural oculars

19
359/375

Binocular

67
359/376

Stereoscopic

122
359/377

With single or parallel objectives

128
359/378

For viewing stereo pairs

30
359/373

Side-by-side fields

19
359/384

With rotatable adjustment

166
359/369

With viewed screen

86
359/367

Right angle inspector

39
359/399

Telescope

295
359/407

Binocular

249
359/409

Body supported or with handle

109
359/411

With adjustable interocular distance

41
359/410

With focusing means

51
359/408

Foldable or collapsible

54
359/418

Spacing of optical elements axially adjustable

57
359/412

With adjustable interocular distance

53
359/415

Oculars rotate about separate axes

15
359/416

Spacing of optical elements axially adjustable

25
359/413

Oculars swing about central axis

26
359/414

Spacing of optical elements axially adjustable

42
359/417

Spacing of optical elements axially adjustable

21
359/425

Focusing or relatively sliding barrels

63
359/426

Internal focusing

25
359/427

With reticle

10
359/402

Periscope

65
359/405

With mechanical adjustment

39
359/406

Extensible structure

26
359/403

With plural optical axes

44
359/404

Binocular

18
359/421

Selectable magnification

47
359/422

Variable magnification

116
359/401

With image anti-rotation

27
359/429

With line of sight adjustment

69
359/430

Equatorial mount

64
359/419

With plural optical axes

65
359/420

Plural magnification in same viewing field

19
359/431

With prism or u-shaped optical path

162
359/423

With relay

29
359/424

With reticle

29
359/428

With reticle

67
359/400

With viewed screen

64
359/432

Variable magnification

158
359/364

With curved reflective imaging element

170
359/365

Two or more in a series

176
359/366

Concave, convex combination

217
359/363

With image recorder

191
359/434

With relay

155
359/435

Repetitious lens structure

107
359/433

With tilted lens or tilted image plane

45
359/196

Deflection using a moving element or medium (offsetting or changing at least a portion of the beam)

486
359/222

By frustrated total internal reflection

52
359/223

By moving a reflective element

680
359/225

Pivoting or moving in circular arc

229
359/224

Reflective element moved by deformable support

854
359/226

Rotating

205
359/197

Using a periodically moving element (periodic change of optically reflecting, refracting or diffracting element)

142
359/205

Having particular focusing element to receive scanned light

558
359/207

Anamorphic element

263
359/208

Concave reflector

169
359/206

High distortion lens (e.g., fo lens, etc.)

318
359/212

Including reflective type moving element

656
359/216

Having multifaceted rotating element

879
359/217

With facets parallel to rotation axis

306
359/219

Having five or fewer facets

54
359/218

Having six, seven, or eight facets

220
359/213

Having oscillating element

199
359/214

Single plane mirror element

294
359/215

With imaging lens

87
359/221

Having planar rotating reflector with rotation axis in its plane

226
359/220

Having planar rotating reflector with transverse rotation axis

116
359/209

Including transmissive type moving element

164
359/210

Having moving lens

203
359/211

Having moving prism

209
359/198

Particular mount or driver for element

429
359/200

Bearing or shaft for rotary driver

123
359/199

Particular oscillating driver

208
359/201

Plural moving scanning elements

360
359/203

Having a common axis of rotation

84
359/202

X-y scanner

206
359/204

Utilizing plural light beams

541
359/558

Diffraction

256
359/566

From grating

677
359/568

For diffractive subtractive filtering

64
359/567

For ornamental effect or display

92
359/569

Including particular grating characteristic

737
359/571

Echelette or blazed grating

260
359/576

Laminated or layered

201
359/570

Nonplanar grating substrate (e.g., concave)

156
359/572

Reflection grating (e.g., retrodirective)

363
359/573

Variable grating

210
359/574

With curved or geometrically shaped corrugation

111
359/575

With nonuniform corrugation width, spacing, or depth

173
359/565

From zone plate

330
359/559

Using fourier transform spatial filtering

269
359/562

For changing zeroth order intensity

50
359/560

For convolution (cross-correlation)

36
359/561

For correlation

195
359/563

With diffraction grating

92
359/564

With photographic media

26
359/599

Diffusing of incident light

477
359/503

Extended spacing structure for optical elements

86
359/506

Extension of tubular element adjustable

16
359/504

Wide angle (e.g., door peep)

34
359/505

With screen or reticle in real image plane

9
359/601

Glare or unwanted light reduction

497
359/611

Barrel end or lens mount shade

70
359/612

Collapsible or foldable

51
359/613

Directional or angular discrimination

170
359/609

Display window

125
359/614

With absorption means

198
359/610

With blind for nonviewing eye

22
359/602

With mirror (e.g., mirror with glare screen, etc.)

83
359/603

Anti-glare mirror

154
359/604

Adjustable

191
359/605

Plural reflecting surfaces

44
359/606

Prismoidal

57
359/607

Reversible

20
359/608

Translucent or other semitransmitting panel selectively positioned in front of mirror

97
359/350

Having significant infrared or ultraviolet property

507
359/358

Fluid filter or fluid mirror

55
359/351

Having folded optical path

84
359/352

Having polarizing element

108
359/361

Having ultraviolet absorbing or shielding property

237
359/353

Including alternative optical path or optical element (e.g., day-night, hi-low magnification)

90
359/354

Including continuously variable magnification or focal length (zoom lens, adjustable lens)

63
359/355

Lens, lens system or component

208
359/356

Infrared lens

185
359/357

Having four or more components

83
359/359

Multilayer filter or multilayer reflector

617
359/360

Having metal layer

288
359/902

Holographic interferometer

15
359/1

Holographic system or element

404
359/2

Authentication

263
359/12

Copying by holographic means

140
359/22

For producing or reconstructing images from multiple holograms (e.g., color, etc.)

406
359/25

Discrete hologram only

146
359/26

Sequential frames on moving film

46
359/23

Holographic stereogram

158
359/24

Superimposed holograms only

232
359/32

For reconstructing image

241
359/33

Real image

70
359/9

For synthetically generating a hologram

232
359/29

Fourier transform holography

198
359/35

Hardware for producing a hologram

250
359/21

Having defined page composer

55
359/28

Having multiple object beam or diffuse object illumination

122
359/30

Having optical element between object and recording medium

214
359/31

Focused image holography

34
359/27

Having particular laser source

80
359/3

Having particular recording medium

468
359/8

Having nonplanar recording medium surface

44
359/4

Recyclable

58
359/7

Crystalline material

157
359/5

Magnetic material

5
359/6

Sandwich having photoconductor

32
359/13

Head up display

248
359/14

Holograph on curved substrate

53
359/15

Using a hologram as an optical element

951
359/19

Lens

242
359/20

Multiple point hologram (e.g., fly-eye lens, etc.)

75
359/17

Scanner

135
359/18

Flat rotating disk

137
359/16

With aberration correction

102
359/10

Using modulated or plural reference beams

220
359/11

Spatial, phase or amplitude modulation

197
359/34

With optical waveguide

184
359/554

Image stabilization

273
359/555

By movable reflective structure

68
359/556

Having plural reflecting surfaces

49
359/557

By movable refractive structure

338
359/616

Kaleidoscope

65
359/617

Including particles loosely housed for agitation

32
359/642

Lens

479
359/744

Afocal (e.g., galilean telescopes, etc.)

115
359/668

Anamorphic

130
359/671

Having four or more components

27
359/670

Variable magnification anamorphoser

36
359/669

With prism anamorphoser

73
359/724

Annular zonal correcting

35
359/720

Asymmetric (e.g., prismatic or eccentric, etc.)

95
359/809

Combined with diverse art tool, instrument or machine

120
359/810

Operation viewed through lens

30
359/707

Diffusing

126
359/643

Eyepiece

113
359/644

Having four components

63
359/647

Having one component

16
359/645

Having three components

77
359/646

Having two components

90
359/665

Fluid

250
359/667

With gas

50
359/666

With variable magnification

195
359/662

High distortion lens (e.g., f0, etc.)

123
359/708

Including a nonspherical surface

573
359/709

Conical

80
359/710

Cylindrical

198
359/714

Having five components

123
359/715

Having four components

188
359/718

Having one component

173
359/719

Objective for laser (e.g., optical disc, etc.)

302
359/713

Having six components

97
359/716

Having three components

220
359/717

Having two components

220
359/712

Paraboloidal

32
359/711

Toroidal

67
359/656

Microscope objective

169
359/659

Having five components

58
359/660

Having four components

72
359/661

Having less than four components

142
359/657

Having seven components

27
359/658

Having six components

55
359/754

Multiple component lenses

233
359/763

Five components

67
359/770

First component negative

92
359/764

First component positive

68
359/766

+ - + - + arrangement

43
359/765

+ - - + + arrangement

18
359/767

First two components positive

10
359/769

+ + - + + arrangement

9
359/768

+ + - - + arrangement

29
359/771

Four components

87
359/781

First component negative

83
359/783

- + + + arrangement

33
359/782

- + + - arrangement

36
359/772

First component positive

77
359/780

+ + + - arrangement

20
359/779

+ + - + arrangement

34
359/774

+ - + + arrangement

102
359/773

+ - + - arrangement

99
359/775

+ - - + arrangement

40
359/776

With multiple element component

22
359/778

Having a biconvex single element component

20
359/777

Infinite radius

4
359/755

Seven components

73
359/756

Six components

56
359/761

First component negative

56
359/762

First two components negative

16
359/757

First component positive

59
359/758

+ - + + - + arrangement

22
359/759

First two components positive

26
359/760

+ + - - + + arrangement

33
359/784

Three components

237
359/792

+ + + arrangement

34
359/791

+ + - arrangement

81
359/785

+ - + arrangement

145
359/789

With first component biconvex

17
359/786

With multiple element first component

27
359/787

With multiple element second component

18
359/788

With multiple element third component

29
359/790

With third component biconvex

29
359/793

Two components

215
359/794

+ + arrangement

111
359/795

+ - arrangement

82
359/725

Panoramic

116
359/721

Plural focal length

123
359/749

Reverse telephoto

134
359/750

With eight components

54
359/753

With five or less components

177
359/751

With seven components

49
359/752

With six components

43
359/672

Selective magnification by exchanging or adding a lens component

75
359/673

To the front of a basic lens

54
359/674

To the middle of a basic lens

42
359/675

To the rear of a basic lens

71
359/722

Selective wavelength transmitting or blocking

114
359/723

With separate filter

70
359/796

Single component with multiple elements

109
359/797

Three or more elements

40
359/664

Spherical

99
359/663

Telecentric system

153
359/745

Telephoto

97
359/746

With five components

39
359/747

With four components

34
359/748

With less than four components

40
359/737

With diverse refracting element

129
359/648

With field curvature shaping

62
359/649

Projection type

440
359/650

Having four components

88
359/651

Having less than four components

131
359/652

With graded refractive index

232
359/654

Having a radial gradient

199
359/655

In a variable media (e.g., gas, elastomer, etc.)

8
359/653

Having an axial gradient

83
359/808

With lens casing

104
359/738

With light limiting or controlling means

268
359/739

Diaphragm

218
359/740

Between lens components

411
359/741

With multipart element

127
359/742

Echelon (e.g., fresnel lens, etc.)

412
359/743

Having curvilinear lens

111
359/726

With reflecting element

454
359/732

For producing a double pass

101
359/727

Including concave or convex reflecting surface

283
359/730

Reflectors in series

104
359/731

With concave and convex reflectors in series

132
359/728

With aspheric surface (e.g., schmidt lens, etc.)

142
359/729

With concave and convex reflectors in series

93
359/733

Multiple component lenses

41
359/734

Four components

8
359/735

Three components

13
359/736

Two components

23
359/811

With support

557
359/815

Body or apparel attached or carried

82
359/816

Monocular loupe type

9
359/817

Foldable or collapsible

63
359/819

Lens mounts

1167
359/822

Adjustable

537
359/823

With axial adjustment (e.g., adjustable focus, etc.)

829
359/824

Electromagnetic or piezoelectric drive

560
359/825

Focusing ring

105
359/826

Sliding barrels

157
359/827

Detachably attached (e.g., plate, barrel, etc.)

182
359/828

Bayonet coupling

52
359/821

Plural lenses in common carrier selectively operable (e.g., turret type, etc.)

177
359/830

With ring

83
359/820

With temperature compensation or control

293
359/829

With threads

75
359/813

Lens movable in its plane

442
359/814

Electromagnetic motive power

329
359/812

With additional handle

19
359/818

With clamp or grip

94
359/676

With variable magnification (e.g., zoom type)

604
359/694

Adjusting mechanism

457
359/699

Having cam device

318
359/700

Cam groove type

333
359/701

Cam ring type or zoom ring type

225
359/696

Motor driven

301
359/697

Condition responsive

104
359/698

Auto focusing

177
359/695

Three or more movable lens groups

86
359/702

With adjustment lock

62
359/705

With macro type focusing

71
359/706

With specific ring means

41
359/703

With specified mount

108
359/704

Having detail of barrel

255
359/677

Optically compensated

46
359/678

Prism lens type

49
359/680

Reverse telephoto

319
359/681

Having eight or nine components

90
359/682

Having seven or less components

223
359/679

With fixed conjugates

82
359/683

With mechanical compensation

526
359/686

Four groups

508
359/687

+ - + + arrangement

492
359/688

+ - - + arrangement

135
359/685

Nonlinear variator/compensator movements

184
359/684

Other than first group moves for focusing (internal focus type)

464
359/689

Three groups

647
359/690

+ - + arrangement

194
359/691

Two groups

318
359/692

+ - arrangement

211
359/693

With macro-type focusing

85
359/798

With viewed object or viewed field illumination

62
359/799

Illuminating beam coaxial with lens axis

42
359/800

Illumination through lens

69
359/802

Magnifier

153
359/803

Hand held

63
359/801

With viewed object support

40
359/804

With viewed object support

73
359/807

Flat opaque document or picture

12
359/805

On lens supporting handle

15
359/806

Relatively movable informatory sheet and lens (e.g., reading machine, etc.)

50
359/227

Light control by opaque element or medium movable in or through light path

167
359/230

Electro-mechanical

219
359/231

String or ribbon type

43
359/228

Fluid

77
359/232

Slit type

58
359/229

With glare or flicker elimination

15
359/233

With relative motion of two apertured elements

70
359/234

With rotating or pivoting element (e.g., scanning discs)

122
359/235

Continuously rotating apertured element

84
359/236

Element rotates about axis perpendicular to light path

75
359/615

Light dispersion

168
359/577

Light interference

235
359/578

Electrically or mechanically variable (e.g., tunable, adjustable)

234
359/579

By nonmovable driving element (e.g., piezoelectric, magnetostrictive)

64
359/580

Produced by coating or lamina

460
359/583

Beam splitter or combiner

165
359/581

By transmissive coating on lens

139
359/585

Including metal or conductive layer

301
359/582

Layer having specified nonoptical property

138
359/586

Layers having specified index of refraction

472
359/588

Filter having four or more layers

292
359/587

Plural layer groups lateral in parallel light paths

126
359/584

Reflector

364
359/589

Selective wavelength transmission or reflection

737
359/590

Having another filter

108
359/900

Methods

1836
359/838

Mirror

298
359/843

Automatically adjustable in response to vehicle position, control, or indicator

136
359/840

Back to back

32
359/867

Concave cylindrical or providing a line focus

101
359/845

Fluid cooled mirror

104
359/870

Fracture resistant (e.g., shatterproof, etc.)

26
359/846

Including specified control or retention of the shape of a mirror surface

355
359/849

Including a plurality of adjustable mirror supports

199
359/847

Membrane mirror in mechanical contact only at its edge

149
359/848

With structure to minimize internal mirror stress

129
359/842

Mounted on vehicle having handlebars (e.g., bicycle, motorcycle, etc.)

41
359/844

On adjustable diverse vehicle portion or accessory

100
359/850

Plural mirrors or reflecting surfaces

406
359/851

Composite or echelon mirrors or light concentrating array

176
359/853

Light concentrating (e.g., heliostat, etc.), concave, or paraboloidal structure

274
359/852

With a line focus

100
359/855

Identical adjacent mirrors identically supported

241
359/856

With successive reflections

81
359/854

Identical side mirrors adjustable with respect to a central mirror

38
359/864

Including adjacent plane and curved mirrors

105
359/865

Relatively adjustable

167
359/866

Wide angle segmented mirrors

72
359/857

With successive reflections

334
359/862

Including an adjustable mirror

106
359/863

Including a curved mirror

47
359/858

Including curved mirror surfaces in series

262
359/859

With concave and convex mirrors in series

264
359/860

To view observer

30
359/861

With three or more successive reflections

223
359/841

Retractable vehicle mirror

390
359/839

With a transmitting property

223
359/868

With mirror surface of varied radius

138
359/869

Concave

139
359/884

With selective absorption or transparent overcoating

212
359/871

With support

602
359/883

Laminated or layered mirror support

276
359/872

Mirror movable relative to support

1012
359/879

Body or apparel mirror support

93
359/880

Having support or apparel engaging head or neck

54
359/875

With a rigid handle extending to or near a mirror pivot

97
359/881

With mirror supporting column or sliding adjustment

176
359/873

With rotary to linear motion converting mirror adjustment

162
359/874

With rotation of mirror about perpendicular axes

181
359/876

With rotation of mirror about perpendicular axes

250
359/877

With switch or motor controlling mirror movement

549
359/878

Fluid pressure actuated

24
359/882

With handle

40
359/896

Miscellaneous

243
359/333

Optical amplifier

398
359/349

Beam combination or separation

214
359/336

Bistable

17
359/337

Correction of deleterious effects

482
359/337.3

Additional dopant or host composition

23
359/337.4

Complementary, adjusting stages

133
359/337.2

Filtering (e.g., noise)

82
359/337.21

Grating

70
359/337.22

Interferometer or interference

13
359/337.1

Spectral gain flattening or equalization

211
359/337.11

Feedback

116
359/337.13

Adjusting input signal power

68
359/337.12

Using number of signals

79
359/337.5

Dispersion compensation

122
359/338

Using phase conjugation

56
359/339

Using saturable or spatial filter

29
359/335

Free electron

20
359/340

Mode locked

37
359/347

Multiple pass

83
359/348

Regenerative

38
359/341.1

Optical fiber

405
359/341.2

Bi-directional

104
359/341.5

Composition (e.g., tm, tb, eu, ho, dy, nd)

113
359/341.4

Feedback

150
359/341.41

Automatic gain control (agc)

208
359/341.42

Automatic level control (alc)

105
359/341.44

Fault detection

50
359/341.43

Surge protection

64
359/341.3

Pumping

298
359/341.31

Operating frequency

75
359/341.32

Radiation routing

121
359/341.33

With multiple systems

140
359/342

Particular active medium (e.g., crystal, plasma, fluid, etc.)

139
359/343

Glass (amorphous)

118
359/344

Semiconductor

334
359/345

Particular pumping type (e.g., electrical, optical, nuclear, magnetic, etc.)

228
359/346

Particular resonator cavity (e.g., scanning, confocal or folded mirrors, etc.)

127
359/334

Raman or brillouin process

529
359/894

Optical aperture or tube, or transparent closure

313
359/895

Submerged object viewer

22
359/107

Optical computing without diffraction

186
359/108

Logic gate

133
359/325

Optical demodulator

51
359/326

Optical frequency converter

742
359/332

Dielectric optical waveguide type

353
359/328

Harmonic generator

550
359/329

Third harmonic

59
359/331

Optical laser acoustic delay line type

23
359/330

Parametric oscillator

256
359/327

Raman type

94
359/237

Optical modulator

466
359/321

Having particular chemical composition or structure

301
359/322

Electro-optic crystal material

173
359/323

Plzt material

93
359/324

Magneto-optic crystal material

92
359/298

Light wave directional modulation (e.g., deflection or scanning is representative of the modulating signal)

542
359/305

Acousto-optic

286
359/309

Acting on polychromatic light

23
359/306

Correlation or convolution

40
359/308

Filter

107
359/314

Particular cell orientation

30
359/313

Particular cell shape

41
359/310

Plural cell array

60
359/311

Plural transducers on single cell

84
359/312

Single transducer generating composite plural frequency acoustic wave

43
359/307

Utilizing optical feedback

31
359/301

Acting on polarized light

42
359/303

Using more than one polarization (e.g., digital)

20
359/302

Using reflecting or cavity structure

34
359/304

Using single polarization

9
359/315

Electro-optic

167
359/318

By reflection

140
359/319

Focusing

51
359/317

Multiple reflections within cell

28
359/316

Plural modulation cells

98
359/320

Switching

143
359/299

Opto-optical device

86
359/300

Phase conjugate

64
359/238

Light wave temporal modulation (e.g., frequency, amplitude, etc.)

284
359/290

By changing physical characteristics (e.g., shape, size or contours) of an optical element

1087
359/296

Changing position or orientation of suspended particles

756
359/297

Light control surface formed or destroyed

73
359/291

Shape or contour of light control surface altered

1312
359/295

Having multiple electrodes

475
359/292

Light control surface forms image on projected light beam

304
359/293

Electron beam causes surface alteration

53
359/294

Using photoconductive layer

23
359/240

Changing bulk optical parameter

153
359/285

Acousto-optic

271
359/286

Amplitude modulation

51
359/287

Frequency modulation

86
359/241

By actinic radiation (e.g., photochromic)

281
359/243

Bistable device

64
359/242

Display device

94
359/244

Opto-optical device

178
359/245

Electro-optic

999
359/276

Amplitude modulation

204
359/277

Within display element

29
359/263

By reflection

118
359/265

Electrochromic

717
359/266

Particular nonplanar electrode arrangement

87
359/267

Reflection-type (e.g., display device)

365
359/268

Complementary device

73
359/274

Diverse layer

139
359/272

Liquid cell

184
359/269

Particular counter electrode

118
359/273

Particular electrochromic layer structure

336
359/270

Particular electrolyte layer

274
359/271

Particular planar electrode pattern

120
359/275

Transmission-type (e.g., windows)

337
359/260

Etalon structure

153
359/262

Excitation by electron beam

24
359/278

Frequency modulation

91
359/246

Modulation of polarized light via modulating input signal

271
359/249

Compensation technique

101
359/258

Kerr cell

22
359/257

Pockel`s cell

54
359/250

Using plural mediums

116
359/247

Using reflective or cavity structure

225
359/248

Semiconductor

337
359/256

With birefringent element

137
359/251

With particular direction of the field in relation to the medium, beam direction or polarization

118
359/254

With particular electrode structure or arrangement, or medium mounting structure or arrangement

393
359/255

With particular field

41
359/252

With particular medium or state of the medium

116
359/253

Liquid medium

105
359/261

Multiple reflections within cell

26
359/279

Phase modulation

259
359/259

Plural modulation cells

173
359/264

Pulse modulation

62
359/280

Magneto-optic

213
359/284

Amplitude modulation

30
359/281

Modulation of polarized light via modulating input signal

252
359/282

Using layered structure or plural mediums

167
359/283

With particular direction of the field in relation to the medium, beam direction or polarization

109
359/288

Thermo-optic

115
359/289

Amplitude modulation

38
359/239

Modulator output feedback to modulator

130
359/483

Polarization without modulation

245
359/485

Light polarization without any external input

275
359/494

By birefringent element

529
359/495

For beam deflection or splitting

642
359/496

Prisms

250
359/497

Using plural elements

566
359/498

Frequency filter or interference effects

196
359/499

Using compensation techniques

179
359/500

With particular material or mounting structure

279
359/490

By dichroic medium

155
359/492

Oriented particles

75
359/491

Stain or dye

73
359/486

By grid or dipoles

125
359/487

By reflection or refraction (e.g., brewster angle)

422
359/488

With particular medium

91
359/501

By relatively adjustable superimposed or in series polarizers

183
359/493

Glare prevention by discriminating against polarized light

76
359/489

Polarization (direction or magnitude) varies over surface of the medium (e.g., vectograph)

93
359/502

With color filter

78
359/484

Time invariant electric, magnetic, or electromagnetic field responsive (e.g., electro-optical, magneto-optical)

363
359/831

Prism (including mount)

357
359/832

Fluid filled

55
359/833

With reflecting surface

250
359/834

Plural reflecting surfaces

369
359/835

For binocular or porro-prism

40
359/836

Roof or roof-angle

65
359/837

With refracting surface

274
359/443

Projection screen

364
359/445

Acoustical

11
359/450

Border, mask, shade, or curtain

41
359/451

Curved

106
359/452

Embedded particles

141
359/453

Rear projection screen

154
359/446

Moving during projection

39
359/460

Rear projection screen

373
359/461

Roll up screen

75
359/447

Tracing (e.g., camera lucida, etc.)

7
359/459

Unitary sheet comprising plural reflecting areas

187
359/454

Unitary sheet comprising plural refracting areas

120
359/455

Lenticular

208
359/456

Rear projection screen

186
359/457

With fresnel lens

282
359/458

Stereoscopic imaging or three dimensional imaging

75
359/448

With lens (e.g., camera obscura, etc.)

28
359/449

With reflector or additional screen

164
359/444

With sound producer

18
359/507

Protection from moisture or foreign particle

246
359/511

Cap or cover

130
359/509

Fluid directed across optical element

157
359/512

Humidity or temperature control

118
359/510

Microscope drape

44
359/508

Optical element rotates

37
359/513

Sealing

108
359/514

Mirror, prism or signal reflector

61
359/478

Relief illusion

107
359/479

Reflected line of sight

50
359/436

Scale or indicia reading

38
359/440

Lens

42
359/441

Movable or adjustable

16
359/442

Along scale or indicia

21
359/439

Mirror

9
359/437

Polarizer

13
359/438

Prism

22
359/893

Screen (e.g., halftone screen, etc.)

59
359/515

Signal reflector

127
359/529

3-corner retroreflective (i.e., cube corner, trihedral, or triple reflector type)

297
359/530

Unitary plate or sheet comprising plural reflecting elements

275
359/532

Mounted adjacent roadway

39
359/531

Mounted on roadway

51
359/533

Mounted on vehicle

35
359/516

Body carried

28
359/518

Permanently fixed to clothing

38
359/517

Worn by hand or wrist

12
359/519

Worn over clothing

23
359/546

Discrete reflecting elements formed as a unitary mass

44
359/547

Mounted on or adjacent roadway

29
359/548

Mounted on vehicle

24
359/553

Emergency or temporary reflectors (i.e., portable self standing)

23
359/527

For a signal source remote from observer

28
359/534

Including a curved refracting surface

74
359/536

Minute transparent spheres

128
359/537

Directional reflection (e.g., prevent viewing unless critical angle of light is used)

27
359/539

Mixture in liquid binder (e.g., paint, resin)

45
359/538

On flexible substrate (e.g., flexible sheeting, bumper sticker, etc.)

91
359/540

Placed on top of binder (e.g., resin, asphalt, glue, etc.)

89
359/541

With single transparent coating between spheres and atmosphere

66
359/542

Plural refracting elements formed as a unitary mass

34
359/543

With individual reflector element mount

4
359/544

Including a snap, spring clip, or spring retainer

5
359/545

Including a threaded member

2
359/535

Within individual indentations

35
359/528

Light transmitting from source behind a reflector

25
359/552

Mounted adjacent roadway

27
359/551

Mounted on roadway

37
359/520

Moving

16
359/521

Pedal mounted

5
359/522

Rotating

28
359/523

Spoke mounted

45
359/524

Tire, wheel, valve stem, hub cap, or axle mounted

21
359/525

Wind driven

18
359/526

Vibration

11
359/549

Rigidly mounted on vehicle

29
359/550

Bicycle or motorcycle

31
359/618

Single channel simultaneously to or from plural channels (e.g., light dividing, combining, or plural image forming, etc.)

754
359/629

By partial reflection at beam splitting or combining surface

616
359/635

Drawing or plotting aid

19
359/636

Including full reflection and transmission of a beam at different portions of a beam divider

142
359/630

Superimposing visual information on observer`s field of view (e.g., head-up arrangement, etc.)

964
359/631

Including curved reflector

416
359/632

Rotatable heads-up device or combiner

109
359/633

With additional reflector (e.g., serial reflections, etc.)

344
359/634

Wavelength selective (e.g., dichroic mirror, etc.)

587
359/638

With partial reflection at a surface of a prism

234
359/637

With path length or aberration correcting element

225
359/639

By refraction at beam splitting or combining surface

130
359/640

Including prismatic element

208
359/619

By surface composed of lenticular elements

947
359/625

Focusing or defocusing by noncurved surfaces (e.g., prismatic, etc.)

100
359/620

Having particular composition

178
359/628

Noncircular cross section

104
359/626

Particular focusing or defocusing characteristic

288
359/621

Plural lenticular plates

226
359/622

Serially disposed along optic axis

188
359/623

Cylindrical lenslets

124
359/624

Having crossed axes

54
359/627

Reflective

201
359/462

Stereoscopic

399
359/463

Having record with lenticular surface

158
359/466

Stereo-viewers

131
359/474

Collapsible

45
359/470

Compensates for camera position (e.g., plotting or mapping type)

19
359/475

Having illumination

31
359/473

Ocular spacing or angle between ocular axes adjustable

35
359/476

Ocular to picture distance adjustable

13
359/471

Reflected line of sight

57
359/472

Pictures offset, transposed or have respective right or left sides adjacent

60
359/477

Supporting, mounting, enclosing or light shielding structure

80
359/467

View changers

16
359/468

Picture moves linearly past viewing aperture

10
359/469

Using film strips

17
359/464

With right and left channel discriminator (e.g., polarized or colored light)

225
359/465

Using polarized light

140
359/903

With magnet

28
 
 
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