17886768. OMNIDIRECTIONAL STRUCTURAL COLOR MICROSTRUCTURES COMPRISING TITANIUM DIOXIDE simplified abstract (TOYOTA JIDOSHA KABUSHIKI KAISHA)

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OMNIDIRECTIONAL STRUCTURAL COLOR MICROSTRUCTURES COMPRISING TITANIUM DIOXIDE

Organization Name

TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor(s)

Debasish Banerjee of Ann Arbor MI (US)

Songtao Wu of Ann Arbor MI (US)

Hidetaka Asano of Aichi-ken (JP)

OMNIDIRECTIONAL STRUCTURAL COLOR MICROSTRUCTURES COMPRISING TITANIUM DIOXIDE - A simplified explanation of the abstract

This abstract first appeared for US patent application 17886768 titled 'OMNIDIRECTIONAL STRUCTURAL COLOR MICROSTRUCTURES COMPRISING TITANIUM DIOXIDE

Simplified Explanation

The patent application describes a multilayer thin film that reflects an omnidirectional structural color with a reflective core layer, an amorphous-phase TiO dielectric layer, a metallic absorbing layer, and a dielectric outer layer. This thin film reflects a single narrow band of visible light when exposed to broadband electromagnetic radiation, with a color shift of less than 30° when viewed from angles between 0° and 45° relative to the film's surface.

  • Reflects an omnidirectional structural color
  • Contains a reflective core layer, amorphous-phase TiO dielectric layer, metallic absorbing layer, and dielectric outer layer
  • Reflects a single narrow band of visible light when exposed to broadband electromagnetic radiation
  • Color shift is less than 30° when viewed from angles between 0° and 45° relative to the film's surface
      1. Potential Applications

- Anti-counterfeiting measures - High-security printing - Decorative coatings

      1. Problems Solved

- Provides a unique and difficult-to-replicate structural color - Enhances security features in various applications

      1. Benefits

- Offers a high level of security against counterfeiting - Provides a visually appealing and customizable color option - Can be used in a variety of industries for different purposes


Original Abstract Submitted

A multilayer thin film that reflects an omnidirectional structural color having a reflective core layer; an amorphous-phase TiOdielectric layer extending across the reflective core layer; a metallic absorbing layer extending across the dielectric layer; and a dielectric outer layer extending across the metallic absorbing layer. The multilayer thin film reflects a single narrow band of visible light when exposed to broadband electromagnetic radiation, and a color shift of the single narrow band of visible light is less than 30° measured in Lab color space when the multilayer thin film is exposed to broadband electromagnetic radiation and viewed from angles between 0° and 45° relative to a direction normal to an outer surface of the multilayer thin film.