http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102890342-B

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assignee http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d6a6f422b091ba12ea61d4adbf1b0e8e
classificationIPCInventive http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B27-09
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http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B27-00
filingDate 2012-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date>
grantDate 2014-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date>
inventor http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_93ad31138e3facfe1f8409fda7e4d1b1
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publicationDate 2014-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date>
publicationNumber CN-102890342-B
titleOfInvention Method for designing free-form surface optical element for point light source distribution
abstract The invention discloses a method for designing a free-form surface optical element for point light source distribution and belongs to the technical field of non-imaging optics. The method comprises the following steps of: setting a specific structure of the free-form surface optical element according to the design requirements, and designing a free-form surface which meets the preset illumination requirements according to the refraction law and the energy conservation in a computer-assisted mode, so that emergent light of a light source is deflected through the free-form surface and generates preset illumination light spots in a target illumination area, such as circular illumination light spots with ZJU words and uniform rectangular illumination light spots. A certain surface of the free-form surface optical element is a free-form surface, and the free-form surface is obtained through a surface fitting discrete point. The method has the high design efficiency, can realize the complicated illumination and can obtain a continuous free-form surface, and the surface can be machined; and moreover, refractive and reflective free-form surface optical elements can be realized by means of an injection molding technology by using materials such as optical resins.
priorityDate 2012-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date>
type http://data.epo.org/linked-data/def/patent/Publication

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Total number of triples: 24.