This HTML5 document contains 4 embedded RDF statements represented using HTML+Microdata notation.

The embedded RDF content will be recognized by any processor of HTML5 Microdata.

PrefixNamespace IRI
isaphttp://webisa.webdatacommons.org/prov/
isahttp://webisa.webdatacommons.org/
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
provhttp://www.w3.org/ns/prov#
xsdhhttp://www.w3.org/2001/XMLSchema#
n4freepatentsonline.
Subject Item
isa:233681789
rdf:type
prov:Entity
prov:value
The curvature of the ellipse (or elliptical segment) can be varied by adjusting the tilt-angle of the conical lens relative to the focusing lens.According to yet another aspect, a conical mirror such as described herein above can be provided in place of the conical lens, such as shown in FIG. 5.
prov:wasQuotedFrom
n4:com
Subject Item
isap:153580030
prov:wasDerivedFrom
isa:233681789