CPC Definition - Subclass G03B

Last Updated Version: 2020.01
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D)
Definition statement

This place covers:

Details common to at least two of the following types of photographic apparatus: cameras, projectors, printers

  • Film-strip handling
  • Focusing arrangements
  • Adjustment of optical system relative to image or object surface, other than for focusing

Photographic apparatus

  • Cameras
  • Projectors or projection-type viewers, or their details
  • Photographic printing apparatus, or their details
  • Combinations of cameras, projectors, or photographic printing apparatus with non-photographic non-optical apparatus

Details common to cameras

  • Control of exposure by setting shutters, diaphragms, or filters separately or conjointly, in particular remote control
  • Exposure-making shutters
  •  Diaphragms
  • Filters or other obturators specially adapted for photographic purposes
  • Optical viewfinders
  •  Devices used in connection with camera focusing, including focusing aids or autofocus systems
  • Special procedures or apparatus for taking photographs

Photographic techniques and processes

  • Processes – and solely those processes – characterised by the use or manipulation of apparatus classifiable per se in this subclass, in particular:
  • Associated working of cameras or projectors with sound-recording or -reproducing means
  • Colour photography, other than mere exposure or projection of a colour film
  • Stereoscopic photography
  • Panoramic or wide-screen photography
  • Photographing extended surfaces
  • Photographing internal surfaces
  • High-speed photography
  • Other special photographic techniques
  • Obtaining records using waves other than optical waves, or visualising such records by using optical means
  • Testing correct operation of photographic apparatus or parts thereof
Relationships with other classification places

G03B and G03C:

Photographic processes are covered by subclass G03B when the process relates to the exposure of the photosensitive medium, in order to generate the latent image, whereas subclass G03C covers the photographic processes that involve a chemical transformation of the photosensitive medium, such that the latent image is transformed into a visible and permanent record.

G03B and H04N:

H04N relates to pictorial communication and covers processes and apparatus where the photographic record is obtained in a purely electronic format and the concept of the invention relates to a concept specific to the electronic format.

The printing of a record obtained via the processes or apparatus of subclass H04N is classified in classB41if the only chemical processing involved consists in the after-treatment of ink applied to the recording surface, but is classified in subclass G03B if a latent image is produced.

Electronic image capturing apparatus or processes where an electronic image sensor converts an optical image into electrical signals, e.g. by controlling the electronic image sensor or by processing the electrical signals, are typically – but not always – covered by Subclass H04N.

With respect to projectors or projection-type viewers, this subject matter is typically – but not always – covered by Subclass H04N when it is characterised by the processing or handling of the electronic image signals. Due regard should be given to the Special Rule of Classification stated below

The following aspects of cameras or projectors are also covered by H04N:

  • Aspects of apparatus or methods for image capture peculiar to the presence or use of an electronic image sensor [EIS] or image projection peculiar to the presence or use of an electronic spatial light modulator [ESLM] and their related controls insofar they are peculiar to the presence or use of the EIS or ESLM;
  • Processing of electrical image signals from the EIS or provided to the ESLM is covered by H04N 5/00, H04N 9/00;
  • Electronic viewfinders H04N 5/225, H04N 5/232, e.g. control of image pickup devices based on information indicated by the electronic viewfinder displaying an image signal generated by the EIS;
  • Electrical and mechanical aspects of camera modules using electronic image sensors and related constructional details as in mobile phones or webcams H04M 1/00, H04N 5/00;
  • Details of projectors peculiar to the use of an ESLM, e.g. dichroic and polarizing arrangements specially adapted for the ESLM H04N 9/00;
  • Remote control of cameras or projectors peculiar to the EIS or the ESLM, e.g. affecting their operation, or based on a generated electrical image signal, H04N 5/00, H04N 9/00;
  • Adaptations peculiar to the use of an EIS or ESLM or the display, the transmission, recording or other use of electrical image data and related circuitry, e.g. mounting of EIS or ESLM, integrated cleaning system for the EIS, dust mapping, cooling of the EIS H04N;
  • Video cameras, TV cameras, e.g. in studios, CCTV cameras, surveillance cameras and camcorders; Constructional and mechanical details related to such cameras, e.g. housings, even when not peculiar to the presence of an electronic image sensor [EIS] H04N 5/00;
  • Systems or apparatus wherein the inventive contribution lies in features covered above, concerning cameras when interacting with those to be covered by G03B, e.g. switch-over between electronic motion-blur correction of electronic viewfinder during focussing and optical motion-blur correction of the lens during exposure, electronic-motion blur correction of the electronic image signal based on output signals of additional sensor, or interaction between mechanical shutter and electronic control of the charge accumulation period of the EIS H04N.

The following diagrams are intended to illustrate the relationship between H04N and G03B

media0.png

Thus, in G03B aspects of apparatus or methods for taking photographs using an electronic image sensor [EIS] for image capture are classified insofar as they correspond to those of said apparatus or methods for taking photographs using light sensitive film, i.e. insofar not peculiar to the presence or use of the EIS, e.g. mounting of optical elements or flashes, and their related controls insofar they are not peculiar to the presence of the EIS, e.g. exposure, focus, (opto-) mechanical motion blur (anti-shake);

media1.png

In G03B, aspects of apparatus or methods for projecting or viewing images using an electronic spatial light modulator [ESLM] are classified insofar as they correspond to those of said apparatus or methods for projecting or viewing images using film stock, photographic film or slides, i.e. insofar as not peculiar to the presence of the ESLM, e.g. mounting of optical elements not peculiar to the presence of the ESLM, and their related controls not peculiar to the presence of the ESLM, e.g. cooling, beam shaping, optical keystone correction;

As far as processes are concerned, only processes characterised by the use or manipulation of apparatus classified in G03B.

References
Limiting references

This place does not cover:

Optical parts for apparatus or arrangements for taking photographs or for projecting or viewing them

G02B

Photosensitive materials for photographic purposes

G03C

Apparatus for processing exposed photographic materials; Accessories therefor

G03D

Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Instruments for performing medical examinations of the interior of cavities or tubes of the body by photographical inspection

A61B 1/00

Objective-type instruments for examining the eyes specially adapted for eye photography

A61B 3/14

Photographic composing devices

B41B 13/00 - B41B 23/00

Photogrammetry; Photographic surveying

G01C 11/00

Recording indications of measuring instruments by photographic means

G01D 9/42

Indicating the weight by photographic recording

G01G 23/35

Photometry using photographic effects

G01J 1/52

Measuring linear or angular speed using photographic means; Measuring differences of linear or angular speeds using photographic means

G01P 3/38

Photographic dosimeters

G01T 1/08

Microscopes arranged for photographic purposes or projection purposes

G02B 21/36

Arrangements for producing a permanent visual presentation of the output data by photographic printing

G06K 15/12

Photographic arrangements structurally combined with the vessel in vessels common to two or more basic types of discharge tubes or lamps

H01J 5/16

Photographic arrangements structurally combined with the vessel in cathode-ray tubes or in electron-beam tubes

H01J 29/89

Photographic arrangements structurally combined with the vessel in discharge tubes with provision for introducing objects or material to be exposed to the discharge

H01J 37/22

Particle spectrometers or separator tubes with detection performed by photographic film

H01J 49/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Photographic exposure meters

G01J 1/00

Adjusting means for lenses adapted for automatic focusing

G02B 7/09

Systems for automatic generation of focusing signals

G02B 7/28

Means for focusing of apparatus for photomechanical production of textured or patterned surfaces

G03F 7/20

Image processing per se

G06T

Data storage: Information storage based on relative movement between record carrier and transducer; Static stores

G11B, G11C

Optical elements or arrangements associated with solid state imager structures;

H01L 27/146

Constructional and mechanical details related to Video cameras, TV cameras (e.g. in studios), CCTV cameras, surveillance cameras and camcorders even when not peculiar to the presence of an electronic image sensor [EIS]

H04N 5/225

Processing or use of electrical image signals from the EIS for the generation of camera control signals. e.g. focusing, exposure control, electronic blur correction, display in electronic viewfinder

H04N 5/232, H04N 5/235

Transforming light or analogous information into electric image information

H04N 5/30

Transforming X-rays into electric image information

H04N 5/32

Transforming infrared radiation into electric image information

H04N 5/33

Transforming light into electric information using solid-state image sensors

H04N 5/335

Special rules of classification

When the following subject matter is classified in this subclass, it is desirable to classify it also in Subclass H04N, when some aspects are considered of interest for search purposes:

  • Digital still cameras, or their details
  • Projectors or projection-type viewers using an electronic spatial light modulator, or their details
  • Video cameras, CCTV cameras, surveillance cameras and camcorders, or details thereof
Glossary of terms

In this place, the following terms or expressions are used with the meaning indicated:

Photography

the process of recording pictures by means of capturing light on a light-sensitive medium, e.g. silver halide based chemical or an electronic image sensor. Light patterns reflected or emitted from objects expose such a light sensitive medium during a timed exposure, usually through a photographic lens in a device known as a camera

Camera

a device capturing image information represented by light patterns reflected or emitted from objects, and exposing a light sensitive film or an electronic image sensor during a timed exposure, usually through an optical lens, and producing an image on a light sensitive film or an electrical image information signal respectively

Projector

a device displaying image information by projection of light patterns, usually through an optical lens, wherein the light patterns are generated by illuminating an image, e.g. film or slide, or by converting an electric image signal into an optical signal using an electronic spatial light modulator

EIS

Electronic image sensor: optoelectronic transducer, converting optical image information into an electrical signal susceptible of being processed, stored, transmitted or displayed

Additional sensor

a sensor, other than the electronic image sensor, used for controlling a camera

ESLM

Electronic spatial light modulator: optoelectronic transducer converting electric signals representing image information into optical image information

Records

Photographs or any other kind of latent, directly-visible or permanent storage of pictorial information, which consist of an imagewise distribution of a quantity, e.g. an electric charge pattern, recorded on a carrier member

Optical

Applies to visible light but also to ultra-violet radiation or infra-red radiation

Synonyms and Keywords

In patent documents, the following abbreviations are often used:

AE

Automatic Exposure

AF

Auto Focus

APS

Advanced Photographic System

DEP

Double Exposure Prevention

DSLR

Digital Single Lens Reflex Camera

SLR

Single Lens Reflex Camera

OVF

optical viewfinder

EVF

electronic viewfinder

Measuring or indicating length of the used or unused film; Counting number of exposures
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Measuring length in general

G01B

Counting number of exposures
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Measuring length per se

G01B

Counting mechanisms per se

G06M

Focusing arrangements of general interest for cameras, projectors or printers
Definition statement

This place covers:

Mechanical and electromechanical details of driving and guiding a focusing lens or other optical elements in photographic devices.

References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Focusing aids for cameras

G03B 13/18

Means for focusing for cameras

G03B 13/32

Means for automatic focusing of projectors or projection-type viewers

G03B 21/53

Means for automatic focusing of photographic printing apparatus or copying cameras

G03B 27/34, G03F

Power-operated focusing
Definition statement

This place covers:

Mechanical and electromechanical details of driving and guiding a power operated focusing lens or other optical elements for focusing .

References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Means for automatic focusing of projectors or projection type viewers

G03B 21/53

Means for automatic focusing of photographic printing apparatus or copying cameras

G03B 27/34

Informative references

Attention is drawn to the following places, which may be of interest for search:

Algorithms, control systems and user interfaces for performing autofocusing and for generating focusing signals in photographic cameras as long as the focusing signal is not generated in the main electronic image sensor

G03B 13/36

Means for automatic focusing of projectors or projection type viewers

G03B 21/53

Means for automatic focusing of photographic printing apparatus or copying cameras

G03B 27/34

Driving means for the movement of one or more optical elements

G03B 2205/0053

Motorized focusing of fixed focus lenses in general

G02B 7/08

Motorized focusing of variable focus lenses in general

G02B 7/102

Systems for automatic generation of focusing signals in general

G02B 7/28

Algorithms, control systems and user interfaces for performing autofocusing and for generating focusing signals in photographic cameras based on image signal provided by the main electronic image sensor

H04N 5/23212

adapted for remote control
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Control systems in general

G05

Two or more co-operating pivoted blades, e.g. iris type (shutters functioning as diaphragms by limiting extent of opening movement G03B 9/08)
References
Limiting references

This place does not cover:

Shutters functioning as diaphragms by limiting extent of opening movement

G03B 9/08

Shutters
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source

G02F 1/00

Mechanism for delaying opening of shutter (separate from shutter G03B 17/38)
References
Limiting references

This place does not cover:

Mechanism for delaying opening of shutter separate from shutter

G03B 17/38

Filters or other obturators specially adapted for photographic purposes
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Optical filters per se

G02B 5/20

{Lens caps as separate accessory (accessories in general G03B 17/56)}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Accessories in general

G03B 17/56

Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Hoods or caps for eliminating unwanted light from lenses, viewfinders, or focusing aids

G03B 11/04

Reflex cameras with single objective and a movable reflector or a partly- transmitting mirror

G03B 19/12

Cameras with paired lenses, one of which forms image on photosensitive material and the other forms a corresponding image on a focusing screen

G03B 19/14

Optical rangefinders per se

G01C 3/00

Automatic focusing in general

G02B 7/09

Systems for automatic generation of focusing signals

G02B 7/28

Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source

G02F 1/00

Viewfinders
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Viewfinders per se

G02B 23/14

Electronic viewfinders

H04N 5/225, H04N 5/232

to compensate for change of camera lens or size of picture
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Zoom viewfinders per se

G02B 23/145

Means for focusing
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Mechanical and electromechanical details of arrangements for focusing

G03B 3/00

Mechanical and electromechanical details of driving and guiding a power operated focusing lens or other optical elements for focusing

G03B 3/10

Mechanisms for focusing a lens in general

G02B 7/04

Autofocus systems
Definition statement

This place covers:

Algorithms, control systems and user interfaces for performing autofocusing and for generating focusing signals in photographic cameras as long as the focusing signal is not generated in the main electronic image sensor.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Mechanical and electromechanical details of arrangements for focusing

G03B 3/00

Mechanical and electromechanical details of driving and guiding a power operated focusing lens or other optical elements for focusing

G03B 3/10

Systems for automatic generation of focusing signals in general

G02B 7/28

Algorithms, control systems and user interfaces for performing autofocusing and for generating focusing signals in photographic cameras based on image signal provided by the main electronic image sensor

H04N 5/23212

Illuminating scene
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Functional features or details of lighting devices or systems thereof; Structural combinations of lighting devices with other articles, not otherwise provided for

F21V

Combinations of cameras with non-electronic flash apparatus; Non-electronic flash units
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Control of exposure in accordance with both the intensity of the flash source and the distance of the flash source from object, e.g. in accordance with "guide number" of flash bulb and the focusing of the camera

G03B 7/16

Testing correct operation of photographic apparatus or parts thereof, e.g. flash apparatus

G03B 43/00

Light sources using charges of combustible material

F21K 5/00

Circuit arrangements for light sources using a charge of combustible material

H05B 46/00

Combinations of cameras with electronic flash apparatus; Electronic flash units
Definition statement

This place covers:

e.g. flash units without mechanical connection to the camera

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Discharge lamps

H01J 61/00 - H01J 65/00

Circuit arrangements or apparatus for igniting or operating discharge lamps

H05B 41/00

for photographing the track of moving objects (high-speed photography G03B 39/00)
References
Limiting references

This place does not cover:

High-speed photography

G03B 39/00

Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Plates or blocks in which tracks of nuclear particles are made visible by after treatment, using photographic emulsion

G01T 5/10

Details of cameras or camera bodies; Accessories therefor (lens hoods or caps G03B 11/04)
References
Limiting references

This place does not cover:

Lens barriers, covers, shields (for retractable lenses) if not integral part of camera body

G03B 11/04

collapsible, foldable or extensible, e.g. book type
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Bellows per se

F16J 3/00

Hollow bodies having parts which are deformable or displaceable under pressure, e.g. bellows

G12B 1/04

Signals indicating condition of a camera member or suitability of light (indicating depth of field G03B 13/30)
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Indicating depth of field

G03B 13/30

Counting number of exposures (of film strips G03B 1/66)
References
Limiting references

This place does not cover:

Of film strips

G03B 1/66

Informative references

Attention is drawn to the following places, which may be of interest for search:

Counting mechanisms

G06M

adapted for combination with other photographic or optical apparatus
References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Microscopes

G02B 21/00

Telescopes

G02B 23/00

with both developing and finishing apparatus
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Processing apparatus

G03D

Accessories (carrying-cases A45C 11/38)
Definition statement

This place covers:

external battery compartments, support of camera body

References
Limiting references

This place does not cover:

Camera cases

A45C 11/38

Informative references

Attention is drawn to the following places, which may be of interest for search:

Lens caps

G03B 11/041

Camera tripods

F16M

Stands or trestles as support for apparatus or articles placed thereon

F16M 11/00

Means for attachment of apparatus allowing quick-release

F16M 11/041

Movement that the support can allow for the object to be supported

F16M 11/043- F16M 11/14, F16M 11/2007- F16M 11/24

Tripods

F16M 11/24

Monopod or tripod having a central telescopic column

F16M 11/28

Tripods with telescopic legs

F16M 11/32

Means for supporting on, or holding steady relative to, a person,

F16M 13/04

Cameras (details G03B 17/00)
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Details of cameras or camera bodies;Accessories therefor

G03B 17/00

Plate or cut-film cameras (with provision for alternative use with roll film G03B 19/08)
Definition statement

This place covers:

e.g. cameras with a (movable) ground glass screen.

References
Limiting references

This place does not cover:

Plate or cut-film cameras with provision for alternative use with roll film

G03B 19/08

Motion-picture cameras (with non-intermittently running film G03B 41/02)
References
Limiting references

This place does not cover:

Motion-picture cameras with non-intermittently running film

G03B 41/02

Projectors or projection-type viewers; Accessories therefor (devices for changing pictures G03B 23/00)
References
Limiting references

This place does not cover:

Devices for changing pictures

G03B 23/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Optical distortion correction, e.g. keystone

G03B 21/147

Viewers, other than projection viewers, giving motion-picture effects by persistence of vision, e.g. zoetrope

G03B 25/00

Photographic printing apparatus

G03B 27/00

Tables specially adapted to be used with domestic photographic projectors

A47B 37/02

Lighting devices or systems producing a varying lighting effect

F21S 10/00

Optical projection comparators

G01B 9/08

Interactive projectors (whiteboards) with input means to control the projection

G06F 3/00

Television systems' projection arrangements for image reproduction

H04N 5/74

Electronic correction of distortions, e.g. video signal processing

H04N 5/7475

Laser projectors using scanning devices

H04N 9/3129

Projectors peculiar to the use of an electronic spatial light modulator

H04N 9/3197

Projectors with built-in or built-on screen
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Projection screens

G03B 21/56

Lamp housings
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Condensers

G02B 19/00

Microscope condensers

G02B 21/08

Projecting separately subsidiary matter simultaneously with main image
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Light pointers

G02B 27/20

{Cassettes (G03B 21/326, G03B 21/328 take precedence; for containing light-sensitive material G03B 17/265)}
References
Limiting references

This place does not cover:

Means for fixing the film on the axis of a reel or spindle

G03B 21/326

Means for fixing the film on the periphery of a reel

G03B 21/328

Informative references

Attention is drawn to the following places, which may be of interest for search:

Holders for containing light sensitive material and adapted to be inserted within the camera, e.g. cassettes specially adapted for motion picture film

G03B 17/265

Mechanisms transmitting motion to film-strip feed; Mechanical linking of shutter and intermittent feed
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Film-strip handling of general interest for cameras, projectors or printers

G03B 1/00

Control devices operated by the film strip during the run
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Mechanical linking of shutter and intermittent feed for altering frame speed or regulating constancy of film speed

G03B 21/48

Means for automatic focusing, e.g. to compensate thermal effects
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Automatic focusing in general

G02B 7/09

Systems for automatic generation of focusing signals

G02B 7/28

Accessories
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Tables specially adapted to be used with domestic photographic projectors

A47B 37/02

Devices for changing pictures in viewing apparatus or projectors
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Film-strip handling of general interest for cameras, projectors or printers

G03B 1/00

Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies

G02B 23/00

Viewing or reading apparatus

G02B 27/02

Glossary of terms

In this place, the following terms or expressions are used with the meaning indicated:

Picture

Any flat representation, whether transparent or not, e.g. produced by photography, writing, or printing

Viewers, other than projection viewers, giving motion-picture effects by persistence of vision, e.g. zoetrope
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

High-speed photography

G03B 39/00

Photographic printing apparatus
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Film-strip handling of general interest for cameras, projectors or printers

G03B 1/00

Illumination arrangements, e.g. positioning of lamps, positioning of reflectors (controlling the exposure G03B 27/72)
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus

G03B 27/72

adapted to be combined with processing apparatus
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Processing apparatus per se

G03D

{Gas processing (gas processing apparatus G03D 7/00)}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Gas processing apparatus

G03D 7/00

{Heat development (heat development apparatus G03D 13/002)}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Heat development apparatus

G03D 13/002

Means for automatic focusing therefor
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Systems for automatic generation of focusing signals

G02B 7/28

with slit or like diaphragm moving over original for progressive exposure (G03B 27/34 takes precedence {; projection optics per se G03B 27/525})
References
Limiting references

This place does not cover:

Means for automatic focusing for projection printing apparatus

G03B 27/34

Informative references

Attention is drawn to the following places, which may be of interest for search:

Projection optics for slit exposure

G03B 27/525

{Arrangements for applying a supplementary information onto the sensitive material, e.g. coding (producing marks on the film in cameras G03B 17/24)}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Producing marks on the film in cameras

G03B 17/24

{Projection optics (for electro-photographic copiers in particular G03G 15/04)}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Projection optics for electro-photographic copiers

G03G 15/04

Automatic registration or positioning of originals with respect to each other or the photosensitive layer
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Registration or positioning of originals, masks, frames, photographic sheets or textured or patterned surfaces in photo-mechanical production of textured or patterned surfaces, e.g. of integrated circuits

G03F 9/00

Lamp housings; Illuminating means
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus

G03B 27/72

Baseboards, masking frames, or other holders for the sensitive material (G03B 27/53 takes precedence {; for electrophotographic copiers G03G 15/65})
References
Limiting references

This place does not cover:

Automatic registration or positioning of originals with respect to each other or the photosensitive layer

G03B 27/53

Informative references

Attention is drawn to the following places, which may be of interest for search:

Apparatus relating to the handling of copy material for electrographic processes using a charge pattern

G03G 15/65

Holders for the original (G03B 27/53 takes precedence {; for electrophotographic copiers G03G 15/60})
References
Limiting references

This place does not cover:

Automatic registration or positioning of originals with respect to each other or the photosensitive layer

G03B 27/53

Informative references

Attention is drawn to the following places, which may be of interest for search:

Apparatus relating to the handling of originals for electrographic processes using a charge pattern

G03G 15/60

Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Exposure meters per se

G01J

Control of light, e.g. intensity, colour, phase

G05D 25/00

Combinations of cameras, projectors or photographic printing apparatus with non-photographic non-optical apparatus, e.g. clocks or weapons; Cameras having the shape of other objects (combinations with flash apparatus G03B 15/03)
References
Limiting references

This place does not cover:

Combinations with flash apparatus 

G03B 15/03

Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes

A61B 1/00

Arrangements specially adapted for eye photography

A61B 3/14

Theodolites combined with cameras

G01C 1/04

Structural combination of reactor core or moderator structure with viewing means, e.g. with television camera, periscope, window

G21C 17/08

Optical or photographic arrangements structurally combined with the vessel

H01J 5/16

Optical or photographic arrangements structurally combined

H01J 29/89

Optical or photographic arrangements associated with the tube

H01J 37/22

Informative references

Attention is drawn to the following places, which may be of interest for search:

Time-pieces combined with other articles which do not interfere with the running or time-keeping of the time-piece

G04B 47/00

Associated working of cameras or projectors with sound-recording or sound-reproducing means
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Cinematographic processes of taking pictures or printing combined with sound-recording

G03C 5/14

Record carriers characterised by the selection of the material and comprising cinematographic film or slide with integral magnetic track

G11B 5/633

Colour photography, other than mere exposure or projection of a colour film (printing apparatus G03B 27/00; stereoscopic colour photography G03B 35/00)
References
Limiting references

This place does not cover:

Stereoscopic colour photography

G03B 35/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Printing apparatus

G03F35/00

using lenticular screens (integral with film G03C)
References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Colour photography using lenticular screens integral with film

G03C

using colour-pattern screens (integral with film G03C)
References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Colour photography using lenticular screens integral with film

G03C

Stereoscopic photography
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Panoramic or wide-screen photography

G03B 37/00

Photogrammetry

G01C

{Photographing internal surfaces, e.g. of pipe, (G03B 37/02 - G03B 37/06 take precedence; instruments for performing medical examinations of cavities or tubes of the body by photographic inspection A61B 1/00)}
References
Limiting references

This place does not cover:

Automatic registration or positioning of originals with respect to each other or the photosensitive layer

G03B 27/53

Informative references

Attention is drawn to the following places, which may be of interest for search:

Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes

A61B 1/00

Special techniques not covered by groups G03B 31/00 - G03B 39/00; Apparatus therefor
References
Limiting references

This place does not cover:

Associated working of cameras or projectors with sound-recording or -reproducing means

G03B 31/00

Colour photography, other than mere exposure or projection of a colour film

G03B 33/00

Stereoscopic photography

G03B 35/00

Panoramic or wide-screen photography;Photographing extended surfaces, e.g. for surveying;Photographing internal surfaces, e.g. of pipe

G03B 37/00

High-speed photography

G03B 39/00

Obtaining records using waves other than optical waves; Visualisation of such records by using optical means
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Investigating or analysing materials using electromagnetic radiation, other than infrared, visible or ultraviolet radiation, e.g. microwaves, or particles

G01N 22/00, G01N 23/00

Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object

G01N 29/00

Radar or analogous systems specially adapted for mapping or imaging

G01S 13/89

Sonar systems specially adapted for mapping or imaging

G01S 15/89

Holography

G03H

using X-rays
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Measurement of nuclear or X-radiation

G01T

X-ray apparatus involving X-ray tubes; Circuits therefor

H05G 1/00

{Apparatus for direct X-ray cinematography (circuit arrangements for obtaining a series of X-ray photographs or for X-ray cinematography H05G 1/60)}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Circuit arrangements for obtaining a series of X-ray photographs or for X-ray cinematography

H05G 1/60

{Apparatus for indirect X-ray cinematography, i.e. by taking pictures on ordinary film from the images on the fluorescent screen (by transforming the picture information intermediately into electrical signals G03B 27/725)}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Controlling or varying light intensity in photographic printing apparatus by transforming the picture information intermediately into electrical signals

G03B 27/725

{for dental applications (see also A61B 6/14); (individual packages for X-ray film G03C 3/003)}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Apparatus for radiation diagnosis, applications or adaptations for dentistry

A61B 6/14

Individual packages for X-ray film, e.g. for dental applications

G03C 3/003

using ultrasonic, sonic or infrasonic waves
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Diagnosis using ultrasonic, sonic or infrasonic waves

A61B 8/00

Measurement of ultrasonic, sonic or infrasonic waves

G01H

Visualisation of records by optical means
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Diffraction optics systems using spatial filters;

G02B 27/46

Optics for phase object visualising

G02B 27/50

Testing correct operation of photographic apparatus or parts thereof
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Measuring specific variables

G01

Testing shutters
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Time-interval measuring

G04F