IP Library Granted Patent US 12,521,889
Granted Patent B2
US 12,521,889 · App. 18/649,679 · Granted Jan 13, 2026

Devices, systems, and methods for cosmetic analysis and automated lash application

Inventors: Gregoire Charraud (Jersey City, NJ); Rafael Feliciano (New Providence, NJ)
Assignee: L'Oreal
B25J9/1697A41G5/02B25J9/0084G06T7/0002G06T2207/10012G06T2207/30201
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Quick Facts
Patent No.
US 12,521,889
App. No.
18/649,679
Granted
Jan 13, 2026
Kind
B2
Abstract

Systems and methods for computation and application of eyelash enhancements to all or part of a subject's eyelashes. A system includes circuitry configured for a visual analysis of the subject's eyelashes and computation of at least one option for the eyelash enhancement based on the visual analysis, and circuitry configured to direct at least one micro-robot to apply the eyelash enhancement to the subject's eyelashes.

Claims (32)

1 . A system for computation and application of an eyelash enhancement, the system comprising:

circuitry configured for a visual analysis of a subject's eyelashes and computation of at least one option for the eyelash enhancement based on the visual analysis; and

circuitry configured to direct at least one micro-robot to apply the eyelash enhancement to the subject's eyelashes.

2 . The system of claim 1 , wherein at least a portion of the circuitry configured for the visual analysis is remote to the at least one micro-robot.

3 . The system of claim 1 , wherein the visual analysis comprises computation of the eyelash enhancement for a subset of the subject's eyelashes.

4 . The system of claim 3 , wherein the subset of the subject's eyelashes is computed by circuitry of the system as being shorter than other of the subject's eyelashes and wherein the eyelash enhancement comprises an eyelash extension.

5 . The system of claim 1 , wherein the visual analysis comprises computation of the eyelash enhancement for all of the subject's eyelashes.

6 . The system of claim 5 , wherein the eyelash enhancement comprises an eyelash extension.

7 . The system of claim 1 , comprising circuitry configured to communicate the at least one option to the subject and receive at least one user-selected eyelash enhancement as at least a portion of the eyelash enhancement.

8 . The system of claim 1 , comprising circuitry configured to compute a plurality of steps for application of the eyelash enhancement to the subject's eyelashes by the at least one micro-robot.

9 . The system of claim 1 , comprising circuitry configured to monitor and analyze application of the eyelash enhancement for an application analysis and compute at least a portion of a plurality of steps for application of the eyelash enhancement to the subject's eyelashes by the at least one micro-robot, in real-time and during application of the eyelash enhancement, based on the application analysis.

10 . The system of claim 1 , comprising circuitry configured to:

a) perform at least one intrinsic calibration and at least one extrinsic calibration;

b) capture at least one stereo image of the subject's eyelashes;

c) compute, based on the at least one stereo image, a plurality of eyelash characteristics and a plurality of robot characteristics;

d) compute, based on the plurality of eyelash characteristics, a region of the subject's eyelashes to receive at least a portion of the eyelash enhancement; and

e) compute, based on the plurality of robot characteristics and the region, a plurality of micro-robot steps for movement of the micro-robot to the region and application of at least the portion of the eyelash enhancement to the region.

11 . The system of claim 10 , wherein the plurality of micro-robot steps of e) comprises:

i) movement of the micro-robot to the region;

ii) separation of at least a portion of the subject's eyelashes at the region;

iii) estimation of length of at least the portion of the subject's eyelashes at the region; and

iv) application of at least a portion of the eyelash enhancement to at least the portion of the subject's eyelashes at the region.

12 . The system of claim 11 , wherein steps b) through e) are performed iteratively until at least the portion of the subject's eyelashes at the region have received at least the portion of the eyelash enhancement thereon.

13 . The system of claim 1 , comprising a micro-robot system that comprises:

a first micro-robot comprising a first singulating arm that is operably connected to:

a first shuttle bot configured for movement of a first segment of the first singulating arm along a first element; and

a first singulating bot configured for movement of a second segment of the first singulating arm along a second element; and

a second micro-robot comprising a second singulating arm that is operably connected to:

a second shuttle bot configured for movement of a second segment of the second singulating arm along the first element; and

a second singulating bot configured for movement of a second segment of the second singulating arm along the second element.

14 . The system of claim 13 , wherein a separation movement of the first micro-robot, the second micro-robot, or both, separates an eyelash of the subject from one or more adjacent eyelashes of the subject for application of at least a portion of the eyelash enhancement to the eyelash, and wherein a release movement of the first micro-robot, the second micro-robot, or both, releases the eyelash of the subject.

15 . The system of claim 14 , wherein the application of at least the portion of the eyelash enhancement to the eyelash comprises gluing a lash extension to the eyelash.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 21, 2024
From: CHARRAUD, GREGOIRE; FELICIANO, RAFAEL
To: L'OREAL
Reel/Frame 067481/0722 →
Continuity (1)
Related Publication 20250332731A1 · Oct 30, 2025
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