US 11,793,302 B2
Handheld cosmetic device with kinematic and optical sensing for customizing treatment routines
Justin Tehrani, Seattle, WA (US)
Assigned to L'OREAL, Paris (FR)
Filed by L'OREAL, Paris (FR)
Filed on Nov. 30, 2020, as Appl. No. 17/106,993.
Prior Publication US 2022/0167734 A1, Jun. 2, 2022
Int. Cl. A46B 15/00 (2006.01); A46B 13/00 (2006.01); A46B 13/02 (2006.01); A61H 7/00 (2006.01)
CPC A46B 15/0004 (2013.01) [A46B 13/008 (2013.01); A46B 13/02 (2013.01); A46B 15/0038 (2013.01); A61H 7/005 (2013.01); A46B 2200/102 (2013.01); A46B 2200/1006 (2013.01); A61H 2201/1671 (2013.01); A61H 2201/1692 (2013.01); A61H 2201/5005 (2013.01); A61H 2201/5012 (2013.01); A61H 2201/5092 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A skincare device, comprising:
a brushhead including a marking disposed on a surface of the brushhead, the marking including a shape, a color, and a height, the height defined by a difference between a surface of the marking and the surface of the brushhead upon which the marking is disposed, the surface of the marking being parallel to the surface of the brushhead;
a body including a motor assembly configured to oscillate the brushhead; and
a first optical encoder configured to
detect the marking shape and color and determine the height of the marking based on a focal distance between the first optical encoder and the surface of the marking, and
determine an identity of the brushhead based on (i) the detected marking shape, (ii) the detected marking color, and (iii) the determined marking height.