公开(公告)号：US20190107481A1

公开(公告)日：2019-04-11

申请号：US16087299

申请日：2017-03-23

Applicant: L'OREAL

Inventor： Benjamin ASKENAZI ,  Johan AUBERT

IPC: G01N21/25 ,  G01N21/47 ,  A45D44/00

Abstract: The invention relates to a method for determining the color of a cosmetic product on a skin model, the method including steps to: for a plurality of wavelengths, supply experimental points giving diffusion and/or absorption values for several mixes of a given concentration of one pigment in another pigment, each mix corresponding to different given concentrations, and use a physicochemical model capable of predicting interactions between pigments passing through experimental points to obtain the curve giving the diffusion and/or absorption for each wavelength as a function of the given concentration of pigment in the mix of pigments considered.

公开(公告)号：US20220262523A1

公开(公告)日：2022-08-18

申请号：US17621800

申请日：2020-06-25

Applicant: L'OREAL

Inventor： Jean-Dominique BAZIN DE BEZONS ,  Loic TRAN ,  Panagiotis-alexandros BOKARIS ,  Constance CANTIN ,  Fabienne WILTORD ,  Benjamin ASKENAZI

IPC: G16H50/50 ,  G16H10/60

Abstract: The present invention relates to a method for determining, from a set of physical elements (10), a specific value of an input data for a tool (12) for determining a customized cosmetic action for an individual (I), each physical element (10) having a sensory property representative of a characteristic of a body zone and associated with an identifier, each identifier being associated with a predefined value of said input data characterizing said body zone according to a match table, the method comprising the following steps:—selecting a physical element (10) for the individual (I) among the set of physical elements (10), —acquiring, via the calculator (14), the identifier of the selected physical element (10), and—determining, via the calculator (14), the predefined value of the input data corresponding to the identifier acquired according to the match table.

公开(公告)号：US20220175112A1

公开(公告)日：2022-06-09

申请号：US17442365

申请日：2020-03-25

Applicant: L'OREAL

Inventor： Benjamin ASKENAZI ,  Johan AUBERT ,  Jean-Dominique BAZIN DE BEZONS ,  Olivier LESEUR ,  Romain RONCIN

IPC: A45D44/00 ,  B44D3/00 ,  G06Q30/06

Abstract: The present invention relates to a method for determining a parameter specific to the custom-made coloring of hairs of a given individual, the method including the following steps: receiving magnitudes representative of a first target color and of a first initial color in a colorimetric space, determining a cosmetic product composition according to magnitudes received and a colorimetric rendering model, applying a cosmetic product having the determined composition on the hairs to be colored of the individual in order to obtain colored hairs, evaluating the color of the colored hairs in order to a magnitude representative of a first final color in the colorimetric space, and determining a colorimetric deviation parameter specific to the individual according to magnitudes representative of the first final color and of the first target color.

公开(公告)号：US20250020587A1

公开(公告)日：2025-01-16

申请号：US18711967

申请日：2022-11-30

Applicant: L'OREAL

Inventor： Benjamin ASKENAZI ,  Thierry WASSERMAN ,  Emmanuel MALHERBE ,  Thomas GOTTSCHALL

IPC: G01N21/55 ,  G01N33/483

Abstract: This device for inspecting a human body portion (12) comprises: a frame (14), defining an observation window (26); an optical sensor, configured to capture a measurement luminous radiation (C) from the human body portion (12), and an illumination arrangement, configured to illuminate the human body portion (12), the illumination arrangement comprising at least one light source (30), each light source (30) being configured to produce an emitted luminous radiation (A). The illumination arrangement comprises at least one concave mirror (32) configured to reflect the emitted luminous radiation (A) produced by at least one of the light sources (30) in a reflected luminous radiation (B), the reflected luminous radiation (B) being collimated toward the observation window (26) so as to illuminate the human body portion (12).

公开(公告)号：US20240393231A1

公开(公告)日：2024-11-28

申请号：US18686129

申请日：2022-09-01

Applicant: L'OREAL

Inventor： Benjamin ASKENAZI ,  Tal MARCU ,  Thibault CHAUFFIER ,  Thierry WASSERMAN

IPC: G01N21/01 ,  A61B5/00 ,  G01N33/483

Abstract: The sample holder (12) for supporting a hair strand comprises at least a first arm (24), the first arm (24) comprising an inner face (28) and an outer face (30), the sample holder (12) defining a housing (32) for receiving the hair strand delimited at least in part by the first arm (24).
The first arm (24) comprises a through orifice arranged facing the housing (32) for receiving the hair strand and intended to removably receive an optic (18) of a hair strand analysis device (16), the first arm (24) comprising attachment means intended to removably attach the optic (18) of the analysis device (16) to the outer face (30) of the first arm (24).

公开(公告)号：US20190090614A1

公开(公告)日：2019-03-28

申请号：US16086864

申请日：2017-03-22

Applicant: L'OREAL

Inventor： Benjamin ASKENAZI ,  Johan AUBERT

IPC: A45D44/00 ,  G01J3/50 ,  G01J3/46

CPC classification number: A45D44/005 ,  A45D44/00 ,  A45D2044/007 ,  G01J3/462 ,  G01J3/50 ,  G01J2003/467

Abstract: The invention relates to a method for determining the color of a cosmetic product adapted to the skin of a wearer of the cosmetic product, the method including the following steps:—supply data related to the color of the wearer's skin,—determine the color of the cosmetic product by using a correspondence function applied to data about the color appearance of the wearer's skin, the correspondence function associating a cosmetic product color with a wearer's skin color appearance, the correspondence function having at least three reference associations, a reference association associating a predetermined cosmetic product color with a predetermined wearer skin color within a tolerance, the tolerance being equal to a distance of 2 in the L*a*b* color space.