IPC 7 English version
G03H-G03H00500

SECTION G – PHYSICS


G 03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY (reproduction of pictures or patterns by scanning and converting into electrical signals H04N) [4]


G 03 HHOLOGRAPHIC PROCESSES OR APPARATUS (holograms, e.g. point holograms, used as ordinary optical elements G02B 5/32; producing stereoscopic or other three-dimensional effects G02B 27/22; diffraction-grating systems G02B 27/44; systems using moire fringes G02B 27/60; optical logic elements G02F 3/00; stereo-photography G03B 35/00; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D; analogue computers performing mathematical operations with the aid of optical elements G06E 3/00; authentication, by radiation, of concealed information carried by holograms or diffraction gratings G06K 19/16; holographic storage G11B 7/0065, G11C 13/04) [2]


Note

 This subclass covers means for producing a record of the phase and amplitude information of a wave-front, which information can be used to reconstruct the original wave-front, or means to reconstruct the original wave-front from a record containing the phase and amplitude information of the wave-front.  [2]


1/

00Holographic processes or apparatus using light, infra-red, or ultra-violet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto  [2]

1/

02.Details  [2]

1/

04.Processes or apparatus for producing holograms (G03H 1/26 takes precedence)  [2]

1/

06..using incoherent light  [2]

1/

08..Synthesising holograms (using electric digital computers G06F, G06T)  [2]

1/

10..using modulated reference beam  [2]

1/

12...Spatial modulation, e.g. ghost imaging  [2]

1/

14...Temporal modulation, e.g. extending depth of field or phase compensation for object motion  [2]

1/

16..using Fourier transform (G03H 1/12, G03H 1/14 take precedence; analogue computers G06G, e.g. G06G 7/19)  [2]

1/

18..Particular processing of hologram record carriers, e.g. for obtaining blazed holograms  [2]

1/

20..Copying holograms by holographic means  [2]

1/

22.Processes or apparatus for obtaining an optical image from holograms (G03H 1/26 to G03H 1/34 take precedence)  [2]

1/

24..using white light  [2]

1/

26.Processes or apparatus specially adapted to produce multiple holograms or to obtain images from them, e.g. multicolour technique  [2]

1/

28..superimposed holograms only  [2]

1/

30..discrete holograms only  [2]

1/

32.Systems for obtaining speckle elimination  [2]

1/

34.Systems for reducing the space-spatial bandwidth product  [2]


3/

00Holographic processes or apparatus using ultrasonic, sonic, or infrasonic waves for obtaining holograms; Processes or apparatus for obtaining an optical image from them (G03H 1/22 takes precedence) [2]


5/

00Holographic processes or apparatus using other electromagnetic waves or subatomic particles for obtaining holograms; Processes or apparatus for obtaining an optical image from them (G03H 1/22 takes precedence; construction of electron microscopes H01J 37/26) [2]