Patent ID: 9151959
Filing Date: 2015-10-06
Classification: G02B

Abstract:
1. A method of forming a 3D real image floating in space, comprising: forming a 3D real floating image at a first location in space; receiving light from the 3D real floating image along an optical axis; projecting, along the optical axis, a first portion of the light to a second location in space spaced from the first location to form the 3D real image floating in space at the second location, wherein said projecting includes: circularly polarizing the light to create circularly polarized light; reflecting the circularly polarized light using a chiral- or cholesteric-liquid-crystal-based broadband reflector-polarizer; and following said reflecting, converting the circularly polarized light to linearly polarized light to create the first portion of the light; and extinguishing a second portion of the light so as to substantially eliminate, from along the optical axis, direct view light from the 3D real floating image.