http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114078261-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8bb531ac161ea927fd276b48f26bc7af |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06V40-13 |
| filingDate | 2020-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8e74e1bebf9fce2dc813b458610c9bb1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0c4aebbd6bb84b4a452a91c28dc6dbcd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_de15e4132dcb605699d6e79389d5a18c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_15ce6a50682545e6b934d88d33b702f5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_be23d3e5d984145a76fe626309495880 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0a300122fc93c12ecaba3403389f65c2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_df6fceb51e609c42e3a4c9ddd2b73b58 |
| publicationDate | 2022-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114078261-A |
| titleOfInvention | Fingerprint identification system, fingerprint acquisition equipment and electronic equipment |
| abstract | The application relates to a fingerprint identification system, fingerprint collection equipment and electronic equipment, the fingerprint identification system includes: an optical waveguide layer; the first-level grating is arranged on the optical waveguide layer; the secondary grating is arranged on the optical waveguide layer, and the number of the secondary gratings is two or more; the diffracted light beams passing through the first-level grating can pass through the second-level grating, and the diffracted light beams passing through the second-level gratings are turned and at least partially crossed. In this embodiment, the waveguide light turns after passing through the secondary grating, thereby forming intercrossed waveguide light, the brightness of the light is high, thereby increasing the brightness of the light irradiated to the ridge of the finger, and the directions of the waveguide light are different after passing through the coupling of different secondary gratings, therefore, the intercrossed waveguide light can be irradiated to each position of the optical waveguide layer, and a dead angle of fingerprint irradiation is not easily formed, thereby improving the quality of a fingerprint image. |
| priorityDate | 2020-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID7753 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419514609 |
Total number of triples: 18.