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1. (WO2018221923) COSMETIC MATERIAL THICKNESS MEASURING DEVICE AND METHOD

Pub. No.:    WO/2018/221923    International Application No.:    PCT/KR2018/006067
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Wed May 30 01:59:59 CEST 2018
IPC: G01B 11/06
G06F 17/10
A61B 5/00
Applicants: AMOREPACIFIC CORPORATION
(주)아모레퍼시픽
Inventors: LEE, Myeongryeol
이명렬
KIM, Eun Joo
김은주
YEON, Yeongmin
연영민
LEE, Haekwang
이해광
Title: COSMETIC MATERIAL THICKNESS MEASURING DEVICE AND METHOD
Abstract:
The present invention relates to a cosmetic material thickness measuring device and thickness measuring method, and the cosmetic material thickness measuring device, according to one embodiment of the present invention, comprises: an extinction coefficient calculating unit for calculating an extinction coefficient of a test cosmetic material; an internal reflective light measuring unit for measuring the intensity of internal reflective light prior to the application of the test cosmetic material to target skin and the intensity of internal reflective light after the application of the test cosmetic material to the target skin; and a thickness calculating unit for calculating the thickness of the test cosmetic material according to Lambert's law on the basis of the calculated extinction coefficient and the intensity of reflective light prior to and after the application of the test cosmetic material.