Massachusetts Institute of Technology

Toyota Motor Engineering & Manufacturing North America, Inc.

Toyota Motor Corporation

Pinar Kurt

Debasish Banerjee

Masahiko Ishii

Minjuan Zhang

Robert E Cohen

Michael F Rubner

The present invention discloses a non-quarter wave multilayer structure having a plurality of alternating low index of refraction material stacks and high index of refraction material stacks. The plurality of alternating stacks can reflect electromagnetic radiation in the ultraviolet region and a narrow band of electromagnetic radiation in the visible region. The non-quarter wave multilayer structure, i.e. nd&#x2260;nd&#x2260;&#x3bb;/4, can be expressed as [A 0.5 qH pL(qH pL)0.5 qH G], where q and p are multipliers to the quarter-wave thicknesses of high and low refractive index material, respectively, H is the quarter-wave thickness of the high refracting index material; L is the quarter-wave thickness of the low refracting index material; N represents the total number of layers between bounding half layers of high index of refraction material (0.5 qH); G represents a substrate and A represents air.

UV-reflective structural color

Growing community of inventors

Cambridge, MA, United States of America

Pinar Kurt