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:
Feb. 04, 2003
Filed:
Sep. 25, 2000
Abstract
The invention generally relates to an optical switch which in particular, is able to present a high-resolution color display. The aim of the invention is to produce an optical switch which has a simpler design than known constructive solutions and has a high degree of luminous efficiency and low parallax. The optical switch should also be guaranteed to function at approx. 550° C. The inventive e.g., LCD-type optical switch is characterized in that at least one of the support plates consists of color-structured dichroic polarization glass which is impressed with dichroic color filters, in that the dichroic color filters are situated within an orthogonal matrix in color filter layers and in that the color filter layers of the support plate, starting form the surface of the support plate, extend into the same to a depth of a few &mgr;m. Once the glass support plates have been structured, the color patterns remain stable to approx. 550° C. As a result of using the color-structured dichroic polarization filter, the invention requires at least one less polarization filter than conventional LCD's and therefore has a simpler construction.