Structural color body
AssigneeHamamatsu Photonics K.K.
InventorsShigeo Hara, Takahiko Yamanaka
Life of this patent
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Abstract
A structural color body is film-like and comprises a front surface layer disposed on a front surface side and a back surface layer disposed on a back surface side, the front surface layer and the back surface layer contain block copolymers and have micro-phase separated structures including lamellar micro domains, each of the micro domains has a wave-like shape having amplitudes in the thickness direction of the structural color body, a maximum value of distances predetermined in the micro domains of the front surface layer is larger than the wavelength in the visible light range, and distances predetermined in the micro domains of the back surface layer are equal to or less than the wavelength in the visible light range.
Claims10
A structural color body having a first principal surface and a second principal surface opposed to each other, wherein
- the structural color body is film-like and comprises:
- a first resin layer disposed on a side of the first principal surface;
- and
- a second resin layer disposed on a side of the second principal surface,
- each of the first resin layer and the second resin layer contains a block copolymer and has a micro-phase separated structure including lamellar micro domains,
- each of the micro domains has a wave-like shape having amplitudes in a thickness direction of the structural color body,
- in each of the micro domains of the first resin layer, a maximum value of distances in the thickness direction between tops of convexities and bottoms of concavities of the micro domain is larger than a wavelength in a visible light range, and
- in each of the micro domains of the second resin layer, distances in the thickness direction between tops of convexities and bottoms of concavities of the micro domain are equal to or less than a wavelength in a visible light range.
A structural color body having a first principal surface and a second principal surface opposed to each other, wherein
- the structural color body is film-like and comprises:
- a first resin layer disposed on a side of the first principal surface;
- and
- a second resin layer disposed on a side of the second principal surface,
- each of the first resin layer and the second resin layer contains a block copolymer and has a micro-phase separated structure including lamellar micro domains,
- each of the micro domains of the first resin layer has a wave-like shape having amplitudes in a thickness direction of the structural color body,
- in each of the micro domains of the first resin layer, a maximum value of distances in the thickness direction between tops of convexities and bottoms of concavities of the micro domain is larger than a wavelength in a visible light range, and
- each of the micro domains of the second resin layer is oriented substantially parallel to at least one of the first principal surface or the second principal surface.
Dependencies are inferred from the claim text.