Patent ID: 6327084
Filing Date: 2001-12-04
Classification: G02B

Abstract:
A display system comprising:a transparent platelike object having a first and a second major surface opposed to each other;an optical rotatory film for rotating a plane of polarization of light rays, said optical rotatory film being formed on said first or said second major surface of said platelike object or in an inside of said platelike object, a combination of said transparent platelike object and said optical rotatory film constituting a platelike laminate, said platelike laminate having a front major surface and a back major surface that is an interface between said platelike laminate and an air, anda display device for providing, against said front major surface of said platelike laminate, light rays that are intended to be viewed by a viewer, said display device having a polarizing member for polarizing said light rays into S-wave light rays; andwherein said front major surface of said platelike laminate faces said display device such that a part of said S-wave light rays from said polarizing member is reflected from said front major surface of said platelike laminate towards one-eye point of said viewer and that a remainder of said S-wave light rays is transmitted in said platelike laminate and is converted by said optical rotatory film into P-wave light rays,wherein said back major surface of said platelike laminate is curved such that substantially all of said P-wave light rays emerge from said back major surface of said platelike laminate into said air at an angle that is substantially equal to Brewster's angle of one member selected from said optical rotatory film and said platelike object, said one member bordering on said back major surface of said platelike laminate, said angle being defined between a direction of propagation of said P-wave light ray in said air and a line that is perpendicular to said back major surface of said platelike laminate at a point of emergence of said P-wave light ray from said platelike laminate into said air.