The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 14, 2021
Filed:
Dec. 20, 2018
Signify Holding B.v., Eindhoven, NL;
Tobias Borra, Rijswijk, NL;
Marcel Petrus Lucassen, Landsmeer, NL;
Dragan Sekulovski, Eindhoven, NL;
SIGNIFY HOLDING B.V., Eindhoven, NL;
Abstract
The invention provides a light indicator () for use in evaluating a quantity of melanopsin active radiation, the light indicator () comprising a light indicator element () comprising a sensing area (), wherein the light indicator element () comprises a light reflecting element () configured to reflect at least part of light illuminating the sensing area () having one or more wavelengths selected from the wavelength range of an absorption band of melanopsin in the visible wavelength range and configured to absorb at least part of light illuminating the sensing area () having one or more wavelengths in the visible wavelength range outside the wavelength range of the absorption band of melanopsin in the visible wavelength range; and a non-sensing area () configured adjacent to the sensing area (), wherein the non-sensing area () has an achromatic color having a lightness in the range corresponding to the lightness of shades of gray.