Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a3b98361514772ee2605edb9147174c5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e478ba9ae11ba561459efa801653067 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fab08cb31cf9c3b23b92a87d4def4505 |
classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H2001-2271 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H2225-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H2223-19 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H2001-2292 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H2225-25 |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H1-2294 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F1-1347 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F1-135 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G09G3-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03H1-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G09G5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G09G3-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-135 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-1347 |
filingDate |
2007-08-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
grantDate |
2012-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_daad5ea52ebf547d094c3eb0efd46527 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1df7126c8f455eb01f3b02ee7b87634c |
publicationDate |
2012-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
US-RE43608-E |
titleOfInvention |
Spatial light modulator imaging systems |
abstract |
A spatial light modulator imaging system comprises an electrically addressed spatial light modulator (EASLM 4, 30 ) whose optical image output is projected onto different areas of an optically addressed spatial light modulator (OASLM, 6, 8, 31 ) in a sequence. The OASLM carries electrodes which allow separate areas to be selectively addressed by application of a voltage whilst receiving light from the EASLM. The combined output from all areas of the OASLM forms a visible image to an observer ( 11 ). When illuminated by coherent light the OASLM may produce a holographic image, otherwise incoherent light is used to provide a two dimensional image. The OASLM in one example contains a layer of nematic liquid crystal material between two cell walls both treated with an alignment layer providing low tilt surface alignment that is parallel in opposite direction; the product of layer thickness d and material birefringence Δn approximately equals one quarter of the wavelength λ of read light ( 12, 37 ). Other types of nematic devices may also be used, with cell parameters arranged to give enhanced diffraction efficiency. |
isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11693364-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109752323-A |
priorityDate |
2003-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |