| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8f69592f99cbde3cc1ce2151f0d4663a |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H2225-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B2027-0145
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H2225-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H2223-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H2223-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H2227-03
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H2222-13
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H1-2286
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B2027-0174
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H2001-2231
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B2027-0178
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B2027-0121 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B5-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B27-0172
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H1-2205 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B27-01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B5-00 |
| filingDate |
2021-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_081caba3612019fc9fc2f831eee7bb7d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4cc0f5bec0bd55979adf1cf1f039cc94 |
| publicationDate |
2022-09-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-115038994-A |
| titleOfInvention |
Optical assemblies and methods for reducing zero-order light in holographic displays |
| abstract |
An optical assembly 1 for use in a holographic display for replaying images is provided. The optical assembly may be particularly useful in augmented reality headsets. The optical assembly comprises a light modulating element 12 arranged to be illuminated off-axis by the beam. The light modulation element 12 modulates incident light to generate a playback image, and generates a zero-order beam. A focusing system 19 is arranged after the light modulation element. A light remover 120 is positioned after the focusing system and is configured to remove the zero-order beam from the light focused by the focusing system 19 . The focusing system 19 is configured to focus zero-order light from the light modulating element 12 in a first plane different from a second plane, the second plane being the plane of focus of the parallel light of the playback image . The light remover removes the zero-order light in the first plane. |
| priorityDate |
2020-01-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |