Authentix, Inc.

Milad Khoshnegar Shahrestani

Clinton K Landrock

Joseph Brown

Gilles Girouard

Ehsan Nahvi

Clint K Landrock

A diffractive display for displaying multiple images, each at a unique view zone, includes multiple micro-pixels, each having micro-facets, each micro-facet having a surface normal non-parallel to the surface normal of other micro-facets of the micro-pixel, each micro-facet having a diffractive nano-structure array. Each diffractive nano-structure array has a viewing angle at which incident light is diffracted from the diffractive nano-structure array. The diffracted light has a hue and an intensity based on properties of the diffractive nano-structure array, and, for each of the images, each of the micro-pixels includes at least one diffractive nano-structure array for which the viewing angle corresponds to the view zone the image, such that each of the images is composed of the diffracted light from at least one diffractive nano-structure array from each of the micro-pixels.

Optical diffractive display

An optical security feature has pixels with faceted microstructures supporting nano-patterned optical filters. Each of the pixels includes a substrate and a nanostructure. The substrate is configured to emit light of at least a first wavelength and a second wavelength different than the first wavelength. The microstructure includes a first facet, a second facet non-parallel to the first facet, a first nano-patterned optical filter disposed on the first facet, and a second nano-patterned optical filter disposed on the second facet. The first nano-patterned optical filter includes a first stopband that includes the first wavelength and excludes the second wavelength. The second nano-patterned optical filter includes a second stopband that includes the second wavelength and excludes the first wavelength. For each pixel, the first nano-patterned optical filter inhibits emission of light at the first wavelength from the pixel via the first facet.

Optical security device providing color switching or image switching effect

An anticounterfeiting device having a film stack including functionalized microstructures and nanostructures that produces overt and covert features under ambient visible and ultraviolet light, as well as methods of use and construction are disclosed herein.

Growing community of inventors

Coquitlam, Canada

Milad Khoshnegar Shahrestani