The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 10, 1999
Filed:
Sep. 12, 1997
Yoneta Tanaka, Yokohama, JP;
Ushiodenki Kabushiki Kaisha, Tokyo, JP;
Abstract
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 a first flat mirror. This light is incident via a shutter on an integrator lens. The light emerging from the integrator lens is reflected by a second flat mirror and is converted into parallel light by a collimation lens, and is incident in the polarization element. In the polarization element, there are several glass plates spaced parallel to one another and inclined by the Brewster angle relative to the incident light. The polarization element transmits the P-polarized light and reflects the S-polarized light for the most part. The P-polarized light which has emerged from the polarization element irradiates a workpiece via a mask.