http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114755747-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a7957edf13a74b38851e2318c91353ff |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01V8-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B19-009 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B3-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B19-0085 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B19-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B3-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01V8-10 |
| filingDate | 2022-05-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_72a4afd8ebef98429d0b447d4562e437 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6c52d6ded9f0b31048b8c806840b35ef http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2f730cb68a82890625350b8788564f16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_39baf3f5d78b89644a41f534147ae200 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_68a698e3e03e606c532d56c9a6c25994 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f6255e5ef12df83c9c5a20058a99d03e |
| publicationDate | 2022-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114755747-A |
| titleOfInvention | Fresnel lens, distance judgment method, device, detector and storage medium |
| abstract | The invention discloses a Fresnel lens, a distance judgment method, a device, a detector and a computer-readable storage medium, belonging to the technical field of infrared short-distance detection. The Fresnel lens comprises: a Fresnel lens sheet, the The Fresnel lens sheet has a plurality of concentric circular groove lenses, and the plurality of concentric circular groove lenses have a plurality of focal lengths; or the Fresnel lens includes: a plurality of Fresnel lens sheet areas, the Fresnel lens The Fresnel lenses in the Fresnel lens area have the same angle. During the axial movement of the object to be measured, the pyroelectric infrared signal of the object to be measured is collected based on the Fresnel lens, and the intensity change trend of the pyroelectric infrared signal is determined; if the intensity change trend is an upward trend, the distance from the object to be measured is determined The closer the Nell lens is, the farther it is determined otherwise. The invention judges the change trend of the distance of the human body through the change trend of the intensity of the pyroelectric infrared signal. |
| priorityDate | 2022-05-07-04:00^^<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/substance/SID414876609 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID15110 |
Total number of triples: 23.