An optical device capable of providing a structural color, and a corresponding method of manufacturing such a device.

Anders Kristensen (Opfinder), Emil Højlund-Nielsen (Opfinder), N. Asger Mortensen (Opfinder), Jesper Nørregaard (Opfinder)

Publikation: Patent

2066 Downloads (Pure)

Abstrakt

The present invention relates to an optical device having a nano-structured surface capable of providing a structural color to a normal human viewer, the device made being manufactured in one single material. A plurality of nano- structured protrusions (5) is further arranged with a first periodicity (P1) in a first direction and a second periodicity (P2) in a second direction, the first and second periodicity being chosen so that the optical reflection is dominated by specular reflection. The nano-structured protrusions are optionally arranged with a relative spatial randomness (SR) with respect to the average surface positions. The position, size, and randomness of the protrusions are arranged so as to provide, at least up to a maximum angle of incidence (A_in) with respect to a normal to the surface, an angle-independent substantially homogeneous structural color perception for a normal human viewer, at least up to a maximum observation angle (A_obs) with respect to a normal to the surface.
OriginalsprogEngelsk
IPCG02B1/00; G02B5/00; G02B5/18
PatentnummerWO2014194920
Journaliseringsdato11/12/2014
Prioritetsdato04/06/2013
PrioritetsnummerEP20130170492
StatusUdgivet - 2014
Udgivet eksterntJa

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