G03H - Definition 
Definition statement
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 wave-front or means to reconstruct the original wave-front from a record containing the phase and amplitude information of the wave-front.
Holographic processes or apparatus using electromagnetic waves, acoustic waves or other electromagnetic waves or subatomic particles for obtaining holograms; processes or apparatus for obtaining images from them.
References relevant to classification in this subclass
This subclass does not cover:
Holograms used as optical elements | G02B 5/32 |
Analogue computers performing mathematical operations with the aid of optical elements | G06E 3/00 |
Arrangements for recognition printed or written characters using holographic masks | G06K 9/76 |
Holograms used on information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof | B42D 25/328 |
Interferometers using holographic techniques | G01B 9/021 |
Holograms used for marking record carriers | G06K 19/16 |
Holograms using for recording or reproducing of information on carriers, e.g. holographic storage | G11B 7/0065, G11C 13/04 |
Television signal recording using holographic recording | H04N 5/89 |
Informative references
Attention is drawn to the following places, which may be of interest for search:
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 photographic purposes | G03C |
Apparatus for processing exposed photographic materials | G03D |
Hologram used as mask in microlithography process | G03F 7/20 |
Arrangements for performing computing | G06G 7/12 |
Digital computing or data processing equipment or methods, specially adapted for specific functions or for specific applications | G06F 17/00, G16Z |
General purpose image data processing | G06T 1/00 |
Three dimensional [3D] image rendering and modeling | G06T 15/00, G06T 17/00 |
Construction of electron microscopes | H01J 37/26 |
Systems for obtaining stereoscopic television images | H04N 13/00 |
Glossary of terms
In this subclass, the following terms or expressions are used with the meaning indicated:
| Rainbow hologram or Benton hologram | is microrelief structure consisting from multiple numbers of microdimensional grooves . The rainbow hologram separates out components wavelengths of white light and sends them in different directions, so that the viewer sees the image by light of only one wavelength. |
| Multiplex hologram | is produced by combining a large number of photographs in a holographic manner. |
Synonyms and Keywords
In patent documents the following abbreviations are often used:
| CGH | Computer-generated hologram |