| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5d7576285d411d00c697e07270d2814a |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B13-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03B33-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B19-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-13
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03B21-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B13-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N5-74 |
| filingDate |
1993-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1ca083810342e366bb0c1c2fc23493eb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_faa75a3e7ecd8c43c57584e8d3cd99aa
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6e04341d8a9630063472a7de27ed6ec4 |
| publicationDate |
1994-08-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-H06214155-A |
| titleOfInvention |
Condenser lens, polarizing element, light source device, and projection display device |
| abstract |
(57) [Summary] [Object] To provide a large-diameter condenser lens for illumination, a polarizing element, a light source device using these, and a projection display device that realize high brightness of a liquid crystal projector. [Structure] The condenser lens 131 is composed of a double-sided aspherical single lens having a convex first surface S1 and a concave peripheral portion of the second surface S2. The condenser lens 131, the discharge lamp 120 and the reflecting mirror 130 constitute a light source device so that the center of curvature of the reflecting mirror 130 and the focal point of the condenser lens 131 on the second surface side are almost in common. Set the emission center of the discharge lamp 120. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100636112-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010033970-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6280058-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2005114319-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100756174-B1 |
| priorityDate |
1992-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |