| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_86ff778280a8f314c5732fead5868411 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F21V2200-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F21Y2115-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F21V5-048
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F21V5-008
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F21V5-045
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F21V13-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B3-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B19-0061
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F21K9-69
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L33-58
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B27-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B19-0028 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F21V5-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F21V5-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L33-58
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F21S2-00 |
| filingDate |
2020-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_30238959484f646e05bfb218632b775e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_debf08bbb947f68d71b99f487924f4a0 |
| publicationDate |
2021-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2021072280-A |
| titleOfInvention |
Light source device |
| abstract |
PROBLEM TO BE SOLVED: To improve luminous efficiency within a desired irradiation range. A light source device 100 includes a light emitting device 1 having a light emitting surface on its upper surface, a first lens 11 arranged to face the light emitting device 1, and a second lens arranged to face the first lens 11. 31 is provided, and on the lower surface of the first lens 11 facing the light emitting device 1, an incident portion 12 arranged in the center of the lower surface and incident with the light from the light emitting device 1 and an incident portion 12 arranged outside the incident portion 12 are incident. A light guide unit 21 for guiding light incident from the unit 12 is provided, and a lower surface of the second lens 31 facing the first lens 11 is provided with a Fresnel lens surface 32 composed of a plurality of annular convex portions 34. [Selection diagram] Fig. 1 |
| priorityDate |
2019-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |