| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f0c17fb0be15e18e811be589c822b4c8 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B2027-0138
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B2027-0178 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01J5-024
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B27-0018
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B27-0172
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B27-0977
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B27-0093 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B27-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B27-01 |
| filingDate |
2020-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6defd550bdc01460c4f606dfd1584ca0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e0a7526039462ed73ae7c43f08e80ce2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f72194d671be1d1b5004f41cb1755f60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_93c0d503595218a1931285c28e503cdf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_76e93bb297da87dca5e63972097aeb5b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_68eb0e570932f3d95996e4196b368e37 |
| publicationDate |
2021-02-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2021025887-A1 |
| titleOfInvention |
Stray light suppression in eye-tracking imaging |
| abstract |
The disclosure includes optical systems and near-eye optical elements (110) configured to suppress stray infrared light. Infrared illuminators (126, 237) illuminate an eyebox area with narrow-band infrared illumination light for eye-tracking. A combiner layer (240) receives reflected infrared light reflected of an eye of the user and directs the reflected infrared light to a camera (108) configured to capture eye-tracking images of an eye of a user. An anti-reflection (AR) coating (723) may be disposed on a base curvature to reduce Fresnel reflections that generate stray light. A ghost suppression component (533) may be paired with the infrared illuminators to reduce stray light becoming incident on the camera (108). |
| priorityDate |
2019-08-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |