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Class Information
Number: 396
Name: Photography >
Description: GENERAL STATEMENT OF THE CLASS SUBJECT MATTER










Class Number Class Name No. of Patents
396/7

Aerial camera

37
396/8

Having shutter or film feed speed and air or spin speed synchronizing

18
396/11

Including continuously moving film

8
396/9

Simultaneous recording of plural images

5
396/10

Plural images recorded on plural film

2
396/12

Support or holder

41
396/13

Having stabilizing (e.g., gyroscope, etc.)

71
396/50

Attitude sensing

122
396/277

Battery insertion/removal/depletion responsive

77
396/278

Having battery backup

14
396/279

Having indicator

86
396/341

Bellows objective camera

32
396/342

Camera front or lens mount angularly adjustable

28
396/344

Having guide and lock

9
396/345

Having hinged base attached to bellows

4
396/346

Having self-erecting lens holder

5
396/343

Having lens movable in its plane

6
396/347

Hinged linkage between objective mount and housing

12
396/14

Body examination photography

54
396/17

Endoscope

123
396/18

Eye photography

173
396/16

Mouth, jaw, or tooth

29
396/15

Skin ridge pattern (e.g., fingerprint)

44
396/212

Bulb or time exposure mode

11
396/658

Burnishing

0
396/659

Rotary burnishing surface

1
396/660

Internally heated

0
396/544

Camera attachment

324
396/545

Vignetter

35
396/437

Camera back or film carrier angularly adjustable

14
396/429

Camera combined with or convertible to diverse art device

758
396/430

Convertible to developed image projector or viewer

35
396/433

With camouflage structure (e.g., spy camera)

26
396/432

With diverse compound lens system (e.g., microscope)

120
396/431

With light beam projector for delineating field of view

38
396/434

With radio or clock

11
396/439

Camera detail

156
396/535

Body structure or housing

690
396/539

Battery compartment

132
396/540

Ergonomic design

42
396/538

Film chamber detail

311
396/541

Modular body

89
396/536

Rear door or latch detail

140
396/537

Having viewing port

11
396/443

Camera element cocking or resetting

73
396/444

Shutter charging lever on lens housing

4
396/511

Detachable or removable film holder unit

159
396/512

Film cassette or cartridge

232
396/514

Film or spool locking means

73
396/515

Including film use indicator

122
396/513

Light seal

132
396/516

Thrust type

83
396/517

Plate or cut film holder

93
396/523

Auxiliary

6
396/522

Closure lock or check

26
396/528

Flexible holder

8
396/524

Having dark slide

23
396/526

Double holder

24
396/525

Having hinged part

0
396/518

Light seal

92
396/519

Plate fastening or kit

9
396/520

Adjustable

2
396/527

Self-developing

30
396/521

Solution drain or resistant

2
396/449

Diaphragm shutter unit

88
396/451

Between the lens components

33
396/450

Sliding plate

25
396/505

Diaphragm

168
396/509

Diaphragm opens for focusing or viewing

55
396/508

Dynamo-electric actuator

113
396/506

Electro-optical, magneto-optical, or photochromic type

41
396/507

Including irregular diaphragm opening

9
396/510

Plural pivoted blades

108
396/445

Film cutoff

25
396/440

Film restraining means or pressure plate

131
396/442

On camera door

25
396/441

Pneumatic or magnetic

9
396/542

Having printed circuit detail

200
396/534

Hood

51
396/448

Lens cover

331
396/529

Lens mount

496
396/531

Bayonet mount

52
396/532

Having electrical contact detail

94
396/530

Lens adapter

69
396/533

Threaded mount

22
396/446

Plural film types

48
396/447

Reflex mirror

84
396/452

Shutter

134
396/479

Curtain type

28
396/480

Plural curtains

42
396/481

Curtain width opening adjustable

11
396/482

Three or more rollers

16
396/463

Dynamo-electric actuator

262
396/464

Having planar coil

36
396/470

Having spring return

25
396/465

Latching relay

46
396/466

Plural latching relays

26
396/469

Plural dynamo-electric actuators

42
396/467

Plural linear solenoids

15
396/468

Single linear solenoid

45
396/457

Electro-optical, magneto-optical, or photochromic type

55
396/453

Having braking or damping

45
396/454

Having braking or damping member in path of shutter

17
396/455

Having pneumatic or electromagnetic braking or damping

10
396/456

Of focal plane shutter

55
396/472

Having mechanical delayed release means (e.g., self-timer)

28
396/473

Having gear train

16
396/474

Detachable from camera

3
396/475

Having mechanically delayed closing

21
396/478

Including cam means

16
396/477

Including gear means

10
396/476

Including pneumatic means

0
396/462

Having shutter between lens components

37
396/458

Including diaphragm

49
396/461

Diaphragm blades open for focusing or viewing

27
396/460

Including coupled shutter and diaphragm

21
396/459

Plural selectable apertures

27
396/493

Pivoting or rotating blade type

148
396/494

Having auxiliary light blocking

22
396/497

Plural oscillating blades

44
396/498

Having gear means

7
396/499

Having pneumatic actuator

0
396/501

Opposite movement

22
396/500

Symmetrical opening

20
396/495

Shutter blade moves continuously from closed to open to closed position

29
396/496

Blade moves in opposite directions on alternate exposures

8
396/471

Plural shutters

39
396/502

Release or actuator means

229
396/504

Cable release

26
396/503

Having safety lock

76
396/483

Sliding plate type

37
396/484

Plural plates

118
396/485

Having apertured plate

12
396/486

Having base plate detail

26
396/489

Having drive detail

51
396/488

Having plate detail

35
396/487

Having plate support detail

38
396/490

Move in opposite directions

37
396/491

Rectilinear reciprocation

24
396/492

Vertical motion

39
396/543

With mechanical switch detail

139
396/263

Camera release control circuit

153
396/265

Intervalometer (e.g., rapid sequence)

39
396/266

Safety lock

55
396/264

Self-timer

95
396/52

Camera shake sensing

313
396/55

Having stabilization system

1001
396/53

With accelerometer

133
396/54

With photoarray

72
396/419

Camera support

341
396/428

Adjustable support

578
396/420

Operator supported

147
396/422

Having means to attach other photographic accessories

81
396/425

Having release actuator on support

52
396/426

Having actual or simulated handheld weapon structure

26
396/421

Having stabilization

107
396/423

Having strap

85
396/424

Integral with camera body

59
396/427

Surveillance type

311
396/305

Color image using monochrome film

13
396/308

Simultaneous recording of images

12
396/309

Images recorded on separate films

5
396/306

Using a lenticular element

14
396/307

Plural color filter sections

9
396/48

Control circuit for sequencing at least three functions

68
396/438

Daguerreotype

1
396/6

Disposable or recyclable camera

546
396/546

Exposing multicolor cathode-ray tube targets

97
396/547

Having light source or optical element which moves during exposure

41
396/213

Exposure control circuit

208
396/222

Bracketing

43
396/214

Clamp or stop needle control device

6
396/216

Override or manual control

2
396/215

To control exposure time

11
396/225

Color temperature compensation or detection

78
396/257

Diaphragm function only

124
396/262

Electro-optical element

8
396/258

Pawl/ratchet type

27
396/261

Piezoelectric driven

7
396/259

Servo motor type

29
396/260

Using stepping motor

34
396/217

Direct drive galvanometer control device

1
396/219

Circuit detail

6
396/218

Override or manual control

1
396/220

Plural blades

6
396/226

Film latitude responsive

5
396/228

Having log transformation circuit

64
396/230

Antilog

34
396/229

Digital

33
396/233

Having plural photocells

138
396/234

More than two photometering areas

205
396/231

Having temperature compensation circuit

39
396/236

Look-up table memory

44
396/245

Manual av circuit with automatic tv circuit, or vice versa

55
396/238

Manually selective exposure mode

70
396/239

Having indicator

36
396/237

Manually set limit of exposure time or aperture value

17
396/227

Maximum or minimum f-number responsive

48
396/223

Override control

19
396/224

Photometer lock

15
396/242

Program mode

122
396/243

Program selection

46
396/244

Stepping motor type

29
396/240

Pulse train type

10
396/221

Responsive to power source condition

18
396/246

Shutter speed function only

96
396/249

Electro-optical element

12
396/251

Having rc circuit for timing

74
396/255

Having indicator

14
396/252

Including memory capacitor

33
396/253

Including plural selective capacitors

8
396/254

Including plural selective resistors

9
396/248

Piezoelectric driven

21
396/247

Shutter lag correction

16
396/256

Stepping motor

22
396/250

With digital counter

73
396/235

Velocity control of shutter or diaphragm component

74
396/232

Viewfinder light compensation

7
396/241

With exposure filter

39
396/65

Exposure control system responsive to distance

55
396/67

Electric distance signal

28
396/70

Having indicator

14
396/69

Low light activated

7
396/68

Selective guide number

7
396/66

With linear solenoid or rotary motor

13
396/63

Exposure control system responsive to focal length

76
396/64

Control of full open aperture value

22
396/211

Exposure data from detachable memory card

29
396/207

Exposure data from film container

127
396/209

Controlling optical filter

15
396/208

Electrical component on or in film container

90
396/210

Exposure data from film itself

55
396/51

Eye tracking

203
396/61

Flash system responsive to focal length or distance

160
396/62

Illumination angle responds to focal length or distance

80
396/564

Fluid-treating apparatus

118
396/589

Dark cabinet

25
396/594

Daylight loading

26
396/590

Hand or body insertion

18
396/591

Hand/arm access ports on opposite sides of cabinet

5
396/593

Having ventilation

2
396/592

Multiple hand/arm access ports on single side of cabinet

6
396/598

Having film support or handling means

56
396/603

Film immersed and removed

39
396/602

Plate film handling means

20
396/599

Roll film handling

55
396/601

Film in spaced spiral for processing

14
396/600

Having motor driven film winding spool

6
396/595

Having film-holding cabinet insertable into developing tank

9
396/597

Film in spaced spiral for processing

1
396/596

Protective cover stripping

0
396/646

Film guide

68
396/604

Fluid application to one side only of photographic medium

229
396/606

By roller

93
396/607

Having clutch or specified speed

4
396/608

Having doctoring or wiper blade

9
396/605

By web

17
396/610

Having photographic medium cassette or cartridge

10
396/609

Nonroller fluid application to downward facing emulsion surface

13
396/611

Plate or wafer-type photographic medium

418
396/579

Gaseous-treating

123
396/565

Having fluid filter

38
396/633

Having fluid-agitating means

69
396/634

Rotating carrier

42
396/635

Motor driven

56
396/626

Having fluid-circulating means

583
396/627

And fluid spraying means

259
396/628

And photographic medium support means

11
396/629

And rocking tray or support

13
396/631

For wash station

26
396/632

Having electrical circuit

45
396/630

Plural stations

70
396/612

Having photographic medium feed

287
396/613

And cutting device

36
396/617

And photographic medium immersed and removed

164
396/618

Having band, belt, or chain

23
396/619

Having detail of feed mechanism cleaning

33
396/622

Plural stations

235
396/620

Strip type

210
396/621

Crane type

18
396/614

And scrub brush, wipers, squeegee, or squeeze rollers

51
396/623

Film in spaced spiral for processing

2
396/616

Having clutch, speed detail, or variable processing time

33
396/624

Plural stations

42
396/615

Variable path length, variable path width, or alternative path

39
396/566

Having program card, tape, or disk

2
396/578

Having testing, calibration, or indicating

142
396/571

Heating, cooling, or temperature detecting

148
396/573

Having liquid bath or jacket

19
396/576

Heating processing liquid before entry to treating station

18
396/577

Plural stations

11
396/574

Processing vapor from source other than photographic medium

28
396/572

Temperature detecting or controlling of drying station

35
396/575

Thermal developing, controlling temperature of photographic medium or controlling of developing amount

94
396/570

Photocell controlled

133
396/647

Photographic medium holding device

44
396/650

Adjustable means

2
396/652

Gripping means

33
396/653

Frame with opposed force-gripping means

8
396/654

Plate

1
396/651

Retaining means

20
396/648

Spool

27
396/649

Tensioning means

2
396/567

Photographic medium or cartridge sensing

79
396/568

Photographic medium length, width, area, or amount sensing

53
396/569

Transmittivity/reflectivity of photographic medium sensing

58
396/636

Photographic medium processing vessel

174
396/638

Attachment or accessory

19
396/640

Adjustable photographic medium holding means

6
396/641

Reservoir

49
396/639

Visual photographic medium scanner

41
396/645

Having film-guiding ribs

36
396/637

Having interlocking doors

0
396/642

Having photographic medium support

23
396/644

For plate

4
396/643

In shallow tray or pan

3
396/588

Reversal processing

2
396/625

Single station and plural fluids

80
396/580

Treating superimposed or laminar sheets

28
396/582

Having fluid dispensing

44
396/583

Collapsible container

127
396/586

Nonrolling fluid spreading apparatus

3
396/584

Removable or variable pressure roller or particular roller texture, composition, configuration, or spacing

17
396/585

Roll film handling

15
396/587

Having fluid reservoir

14
396/581

Rollers sequentially submerge and press sheet

12
396/348

Folding or collapsible camera

130
396/349

Having axially moving lens

286
396/350

Having pivoting lens

51
396/154

Foreshooting

10
396/281

Having camera indicator

255
396/295

Comparison type

8
396/282

Display intensity control

20
396/284

Film condition indicator

265
396/285

Double exposure warning

25
396/293

Galvanometer type

19
396/294

Having plural pointers or match needle

8
396/296

Having display in viewfinder

316
396/287

Nonmechanical visual display

346
396/289

Ambient light condition display using one of three light emitters

32
396/290

Bar graph/scale display

66
396/292

Character segment display

116
396/288

Having holographic display

15
396/291

Pictograph display

37
396/286

Self-timer indicator

44
396/283

Sound

65
396/71

Having lens converter or extension tube

122
396/351

Having means to reflect image to film

85
396/352

Having reflex mirror

29
396/297

Having operator controlled data entry into camera

83
396/300

Manual data entry using peripheral device

59
396/299

Manual manipulators on camera body unit

123
396/298

Manual manipulators on lens unit or lens mount

36
396/268

Having photocell at specific position within camera

71
396/273

Having light reflected from film or shutter or through film

62
396/274

Having means for changing the photocell field of view

34
396/272

Having two or more mirrors

46
396/276

Having variable light transmission means

67
396/271

In viewfinder area

63
396/270

Movable into or out of light path

22
396/269

Photocell responsive to adjacent illuminator

14
396/275

With color filter

67
396/72

Having variable focal length of camera objective

317
396/77

Automatic change of focal length

90
396/78

Constant image size

42
396/84

Having direct viewfinder

82
396/79

Having focus operation

359
396/83

Having mechanical interlock

51
396/80

Including focus/distance detecting circuit

166
396/81

And focal length responsive memory

78
396/82

Focus position adjusted according to focal length

120
396/88

Having indicator

60
396/73

Lens moves in or out of light path

128
396/75

Motorized lens displacement

136
396/74

Turret type

34
396/76

Manually selected preset zoom position or range

65
396/85

Power zoom

276
396/87

Having position sensor

149
396/86

Speed control or step driving

86
396/56

Having wireless remote control circuit

177
396/58

Camera aiming

28
396/59

Camera release

80
396/57

Camera system data/mode entry

42
396/19

Hollow cavity type

31
396/280

Initializing/storing responsive to power switch

32
396/548

Line generation

94
396/360

Magazine camera

53
396/364

Flexible carrier for plates

7
396/365

Having tab means

6
396/362

Flexible light guard for entrance of hand

0
396/369

Quarter-turned plate

0
396/370

Tilting

1
396/371

Base guide

0
396/372

Rear plates replaceable

0
396/361

Rotatable magazine

2
396/366

Sliding plate

17
396/368

Intermediate exposure chamber

4
396/367

Sliding and return

4
396/363

Tilting receiver

2
396/661

Miscellaneous

108
396/153

Object motion detection

68
396/549

Phototype composing

104
396/551

Having character printing control by program card, tape, or disk

51
396/552

Having justifying, tabulating, centering, or spacing apparatus

14
396/553

With electrical pulse counter

8
396/555

Having means to detect indicia

10
396/556

Having stencil-type character means

32
396/561

Fixed carrier

5
396/558

Having a moveable carrier

10
396/559

Rotary

46
396/560

Key operative

2
396/557

Plural character types

22
396/554

Optical line correction

27
396/550

Photoelectronic type

30
396/562

Photographic medium handling

12
396/322

Plural image recording

141
396/323

Having alternative single image recording

28
396/335

Sequential recording on different areas of a single frame

70
396/337

Including preobjective mask

31
396/336

Including rotary objective or photographic medium support

43
396/338

Including shiftable objective or photographic medium support

28
396/339

Shiftable photographic medium support only

14
396/340

Including shiftable post-objective mask

46
396/332

Simultaneous recording of plural distinct subjects

87
396/333

Simultaneous recording of single subject

66
396/334

Different planes

23
396/324

Stereoscopic

135
396/329

Having adjustable camera mount

32
396/330

Having lenticular screen

50
396/325

Plural camera arrangement

72
396/331

Plural image reflection onto single objective

27
396/326

Single camera with plural spaced objectives

70
396/328

Having film feed or guide

10
396/327

With lenticular screen, mirror, or prism

67
396/60

Pseudo zoom

136
396/655

Retouching

8
396/656

Stand

1
396/657

Vibrating

1
396/20

Scanning camera

55
396/22

Concave film surface

5
396/23

Convex film surface

1
396/21

Including reflector

15
396/24

Synchronization of film and camera movement

17
396/30

Self-developing camera

142
396/43

Including film processing tank

2
396/44

And means to move film

3
396/45

Having tank filling means

2
396/46

Operating on rolled photographic medium

7
396/47

Plural tanks

5
396/42

Including fluid applicator

30
396/31

Including means to treat superimposed material

18
396/32

Including pressure means

19
396/33

Roller

109
396/36

Ejecting

20
396/37

Having pick

29
396/38

Exposed photographic medium engaging or holding

11
396/39

Holding chamber

22
396/34

Light shield

12
396/40

Mechanical detail of roller or roller drive

30
396/41

Operating on rolled material

6
396/35

Tab

7
396/49

Self-organizing system

41
396/563

Sensitometry

29
396/354

Single lens reflex camera

236
396/357

Having focal plane shutter

44
396/356

Having manually operated mirror

16
396/355

Having shutter and additional means to block light from film (e.g., screen)

56
396/359

Plate camera

1
396/358

With mirror support or drive

146
396/1

Studio structure

55
396/3

Background or foreground

57
396/4

Lighting

78
396/5

Object support

101
396/2

Photo booth

96
396/353

Twin lens reflex camera

3
396/25

Underwater, waterproof, or water-resistant camera

123
396/27

Camera removable from handheld casing

96
396/26

Fluid pressure detection or modification

41
396/29

Handheld camera

100
396/28

Having illumination device

57
396/435

Variable frame masking

130
396/436

Having wide aspect ratio

80
396/310

With data recording

233
396/311

Data for control of subsequent processing of film

266
396/313

Having handwritten data

18
396/314

Having transfer strip

1
396/319

Magnetically on film or film cassette

335
396/320

Recording head position control

61
396/315

Optical

182
396/316

Mask or stencil

63
396/317

Having auxiliary illumination

88
396/318

Segmented alphanumeric indicia

116
396/321

Removable semiconductor memory

69
396/312

Sound

84
396/89

With exposure objective focusing means, focusing aid, or rangefinding means

529
396/98

Ambient light compensating

60
396/137

Auto/manual mode selection

96
396/132

Dual purpose motor

104
396/100

Dual purpose photoelement

60
396/130

Focus lock

60
396/96

Having accumulation photoarray and time control means

153
396/106

Having auxiliary illumination

473
396/109

Having plural emitters

70
396/108

Intensity control

42
396/107

Intersecting focusing lights

24
396/110

Scanning emitter

38
396/102

Having in-focus threshold adjustable

64
396/147

Having indicator

323
396/95

Having pursuit mode

137
396/148

Having viewfinder

113
396/149

Having parallax correction

19
396/150

Including focusing screen

85
396/152

And reflector or refractor

33
396/151

Film and focusing screen interchangeable

11
396/91

Lens characteristic compensating

92
396/93

By modifying electric focus or drive signal

63
396/92

By selecting effective photoelements

40
396/94

With mechanical rangefinder

4
396/133

Lens drive circuit or motor structure

528
396/134

Backlash or jam detection

31
396/135

Speed control

86
396/136

Duty cycle

19
396/90

Lens resetting

83
396/131

Manually actuated power focus

56
396/103

Manually selected preset focus position or range

128
396/144

Mechanical mechanism for displacement of exposure objective

155
396/145

Bed or bellows type

6
396/146

Having lock mechanism

8
396/138

Mechanical rangefinder

16
396/139

Rangefinder coupled with focusing

18
396/142

Cam means to actuate rangefinder

5
396/140

Having parallax correction

23
396/141

Having viewfinder

21
396/143

Lever means to actuate rangefinder

1
396/111

Optical detail with photoelement system

316
396/112

Double wedge prism

27
396/114

Dual reimage lens type

126
396/113

Microprism or lenslet

56
396/118

Moving photocell

18
396/119

Photoelements with different optical path lengths

41
396/115

Photosensor area with unique edge pattern

10
396/116

Scanning type

66
396/117

Mirror type

46
396/120

With position sensitive device (psd)

75
396/121

Plural focusing or rangefinding areas

387
396/123

Automatic area selection

236
396/122

Utilizing weight coefficients

48
396/129

Power supply control

71
396/125

Processing circuit

217
396/128

Image correlation type

173
396/127

Inflection point type

56
396/126

Null type or zero-difference type

15
396/104

Reliability of focus/distance signal

267
396/124

Single focus area with variable size or location

68
396/97

Temperature compensating

62
396/105

Using sound

50
396/99

With amplification control

31
396/101

With electronic filtering

82
396/387

With film drive

275
396/388

Detachable drive unit

68
396/389

Double exposure prevention

54
396/393

Having double cable release

1
396/392

Having film-sensing member

22
396/391

Having manual override

30
396/390

Midroll interrupt

55
396/394

Responsive to film-winding lever

4
396/395

Film movement limiting means

150
396/396

From film drive transmission member

57
396/397

From film itself

45
396/399

Having film locked by perforation sensing pawl

21
396/400

Having film transport mechanism locked by perforation sensing pawl

13
396/398

Having switch actuated by perforation sensing pawl

12
396/401

Film transport cocks shutter

104
396/402

Film transport cocks shutter and mirror

14
396/403

Having mechanically actuated circuit

34
396/404

Film feed error detection or end of film detection

9
396/405

Rewind

27
396/406

Having significant electronic circuit detail

135
396/409

Film feed error detection or end of film detection

62
396/408

Initialization

37
396/407

Prewind

29
396/410

Rewind

89
396/411

Mechanical detail

175
396/416

Drive means having rectilinear path

10
396/415

Having threading structure

55
396/418

Including electric motor

131
396/414

Posterior film roll

14
396/413

Rewind

191
396/417

Sheet film

7
396/412

Spring motor

12
396/267

With light pipe or guide

80
396/155

With object illumination for exposure

334
396/165

Activated under low light condition

94
396/174

Bounce type

27
396/196

Bulb ejector

1
396/197

Bulb substitution

22
396/166

Exposure control circuit with illumination mode

90
396/170

Diaphragm function only

41
396/167

Exposure control circuit responsive to illumination source readiness

50
396/168

Program mode function

47
396/169

Shutter speed function only

70
396/179

Flash mode mechanical exposure control

27
396/198

Having adapter unit

73
396/159

Having artificial illumination termination control

210
396/163

Having indicator

31
396/162

Having photocell optical path structure

20
396/161

Including exposure control circuit

97
396/160

Including multipurpose terminal

19
396/180

Having exposure synchronizer

154
396/195

Actuated by shutter movement

53
396/192

Bulb substitution

14
396/193

Having unison film advancing and lamp switching

2
396/190

Convertible

19
396/194

Curtain shutter

12
396/189

Detachable synchronizer

18
396/185

Electromechanical energizing generator

17
396/184

Having pneumatic shutter release

2
396/187

Having time delay adjustment means

54
396/188

Positional

5
396/182

Multiple illumination units for single exposure

116
396/191

Percussive illumination source

16
396/186

Reflex mirror activates switch

2
396/181

Shutter controlled by explosive force of flash device

0
396/183

Shutter relay or solenoid

13
396/176

Having flash built into camera

222
396/178

Folding flash

77
396/177

Pop-up flash

144
396/201

Having indicator

115
396/204

Effective distance indicator

15
396/202

Go/no-go indicator

15
396/203

Indicating power source status

77
396/171

Having photocell used as flash trigger or used for camera release

39
396/157

Having preexposure illumination

184
396/158

For red-eye reduction

75
396/199

Lens mounted illumination unit

38
396/173

Multiple flashing from a single unit for a single exposure

22
396/172

Photocell directly illuminated

13
396/200

Reflector detail

77
396/175

Variable illumination angle

120
396/164

Variable intensity control

114
396/156

With insulated gate bipolar transistor

21
396/205

With power supply detail

154
396/206

Having dc to dc converter

142
396/301

With power supply detail

230
396/304

Having nonelectrochemical power source

13
396/302

Having time-out circuit

40
396/303

Power distribution management

109
396/373

With viewfinder

243
396/374

Electronic

204
396/382

Lens detail

108
396/375

Lensless

16
396/377

Parallax correction

67
396/376

Pose reflector

27
396/378

Selective or adjustable viewfinder field

138
396/381

Variable orientation of finder image

7
396/380

Variable size of mask opening

68
396/379

Zoom

188
396/383

Selective or adjustable viewing position

59
396/384

With prism

166
396/385

With reflector

92
396/386

Plural

161
 
 
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