Title:
高クロマ全方向構造色多層構造
Document Type and Number:
Japanese Patent JP6655278
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a high-chroma omnidirectional structural color multi-layer structure pigment with a reduced number of thin film layers.SOLUTION: A high-chroma omnidirectional structural color multi-layer structure includes a multi-layer stack having a core layer, a dielectric layer 110 extending over the core layer and an absorption layer 120 extending over the dielectric layer. A boundary surface 112 is present between the dielectric layer and the absorption layer. At a first incidence electromagnetic wavelength, a nearly zero electric field is present in the boundary surface. At a second incidence electromagnetic wavelength, a large electric field is present in the boundary surface. In the boundary surface, the multi-layer stack has a narrow reflection band of shorter than 300 nm and a color phase shift of smaller than 30°, in the view at an angle of 0-45°, so that reflection light of a narrow band is generated by the multi-layer stack, which allows high transmission of the first incidence electromagnetic wavelength and high absorption of the second incidence electromagnetic wavelength.
Inventors:
Debassy Banergie
Jean Minjuen
Masahiko Ishii
Jean Minjuen
Masahiko Ishii
Application Number:
JP2014117702A
Publication Date:
February 26, 2020
Filing Date:
June 06, 2014
Export Citation:
Assignee:
Toyota Motor Engineering and Manufacturing North America, Inc.
TOYOTA JIDOSHA KABUSHIKI KAISHA
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
C09C3/06; B32B7/023; B32B15/04; C09C1/62; C09C1/64; G02B5/22; G02B5/28
Domestic Patent References:
| JP2002530712A | ||||
| JP9508172A | ||||
| JP2005513207A | ||||
| JP7258579A | ||||
| JP2004510013A | ||||
| JP2004512394A | ||||
| JP2002523606A | ||||
| JP11504953A | ||||
| JP2002080749A |
Foreign References:
| US6157489 | ||||
| US6399228 |
Attorney, Agent or Firm:
Fukami patent office