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:
Jul. 22, 2025
Filed:
Nov. 12, 2021
L'oreal, Paris, FR;
Alexandre Nicolas, Kawasaki-shi, JP;
Chin Kai Lee, Kawasaki-shi, JP;
Charlotte Pellet, Kawasaki-shi, JP;
Woo Ram Park, Kawasaki-shi, JP;
L'Oreal, Paris, FR;
Abstract
A method for determining UV coverage on an irradiation target in real time comprises the steps of irradiating an irradiation target () with light including UV light () immediately after applying a sunscreen (); detecting an amount of fluorescent light () emitted from the irradiation target in response to the light irradiation and storing the amount of the fluorescent light as reference data; irradiating the irradiation target () with the light including UV light () after a predetermined passage of time, or after applying a predetermined stress on the sunscreen (); detecting an amount of fluorescent light () emitted from the irradiation target in response to the light irradiation and storing the amount of the fluorescent light as measurement data; and determining UV coverage by dividing the amount of the fluorescent light of the reference data by the amount of the fluorescent light of the measurement data, wherein the irradiation target () includes at least one substance emitting fluorescent light in response to the light irradiation.