http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H05210067-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2175de8bcadd3c1447a15ba8b57051c6 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B27-1073 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B27-149 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B27-102 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N9-31 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N9-31 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03B33-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B27-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B27-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B13-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B13-16 |
| filingDate | 1992-09-28^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0cba9fd2a6a3a6c1e09e9b4beadbff6d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_62c4725eab04e271ed4992de416deead http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_27ff199252168a6955c8d4286ca32dd6 |
| publicationDate | 1993-08-20^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H05210067-A |
| titleOfInvention | Video projector |
| abstract | (57) [Summary] [Object] The present invention provides an image projection device for projecting a color image from a plurality of small image generation surfaces onto a large screen. [Structure] A plurality of monochromatic CRTs having concave image generation surfaces, a dichroic mirror for synthesizing images, and a projection lens for enlarging and projecting the synthesized images are provided, and between the CRTs and dichroic mirrors. An aspherical lens that is located at each position and corrects the top curvature of the image generation surface is formed, and the aspherical lens and the entire surface of the CRT are sealed to form an oil chamber whose inside is filled with cooling oil. [Effect] By the aspherical lens that corrects the curvature of the image generation surface, the image generation surface can be flattened, the required number of projection lenses can be reduced, and the large diameter and large viewing angle of the projection lens can be reduced. Can be made. |
| priorityDate | 1991-09-30^^<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/protein/ACCQ6ZSM3 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID407191297 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID19700 |
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