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:
Mar. 17, 2020
Filed:
Feb. 10, 2017
Koninklijke Philips N.v., Eindhoven, NL;
Jonathan Alambra Palero, Eindhoven, NL;
Marco Baragona, Eindhoven, NL;
Babu Varghese, Eindhoven, NL;
Tim Tielemans, Eindhoven, NL;
Johan Lub, Eindhoven, NL;
Wouter Hendrik Cornelis Spoorendonk, Eindhoven, NL;
KONINKLIJKE PHILIPS N.V., Eindhoven, NL;
Abstract
In a hair styling device (), a light emitting diode () is configured to deliver optical energy to hair, wherein an energy fluence of the optical energy is between 0.5 and 9 J/cm, and more preferably between 1 and 5 J/cm. The light emitting diode () is pulse-driven, and a pulse width of the optical energy is at least 50 ms. An output wavelength of the optical energy may be between 400 and 900 nm. The pulse width of the optical energy is preferably between 50 and 300 ms. The hair styling device () may comprise an optical shield () configured to block stray light during light exposure of the hair. An inner surface of the optical shield () may be reflective and/or may have a parabolic shape. The optical shield () may be movable between an open position in which a lock of hair can be placed in the hair styling device () while the optical energy is not applied, and a closed position in which light is prevented from escaping the hair styling device () while the optical energy is applied to the hair. The hair styling device may be a hair straightener having opposing first and second straightening surfaces, of which at least the first straightening surface comprises the light emitting diode (), and at least the second straightening surface is arranged for reflecting light from the light emitting diode ().