Non-dichroic omnidirectional structural color
US10048415B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 13, 2017 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Mar 13, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/285
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A non-dichroic omnidirectional structural color multilayer structure. The non-dichroic omnidirectional structural color multilayer structure has an absorbing layer, a first layer extending across the absorbing layer, and a second layer extending across the first layer. The multilayer structure can reflect a narrow band of electromagnetic radiation that has a width of less than 500 nanometers and a center wavelength shift of less than 200 nanometers when the multilayer structure is viewed from angles between 0 and 45 degrees. In addition, the absorbing layer can block electromagnetic radiation reflected off of a surface that is proximate to the multilayer structure and thereby afford for a “pure” color that is not contaminated by reflected light from surrounding surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.