A polarized light irradiation device in which formation of an alignment layer of a liquid crystal cell element is enabled by optical alignment is obtained by the fact that light which contains UV light and which is emitted from a discharge lamp is focused by an oval focusing mirror and is reflected by...http://www.google.co.uk/patents/US5934780?utm_source=gb-gplus-sharePatent US5934780 - Polarized light irradiation device for purposes of optical alignment of an alignment layer of a liquid crystal cell element
