US 12,239,199 B2
Hair cutting member and hair cutting device
Hideki Kasugai, Shiga (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Appl. No. 17/776,525
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
PCT Filed Nov. 5, 2020, PCT No. PCT/JP2020/041369
§ 371(c)(1), (2) Date May 12, 2022,
PCT Pub. No. WO2021/131342, PCT Pub. Date Jul. 1, 2021.
Claims priority of application No. 2019-234944 (JP), filed on Dec. 25, 2019.
Prior Publication US 2022/0378168 A1, Dec. 1, 2022
Int. Cl. A45D 26/00 (2006.01); G02B 6/42 (2006.01)
CPC A45D 26/00 (2013.01) [G02B 6/42 (2013.01); A45D 2026/008 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A hair cutting member comprising:
an optical waveguide extending in a first direction and including a core and a cladding covering at least a portion of the core, the optical waveguide guiding light to hair growing on a skin;
a connecting member retaining an end of the optical waveguide; and
a bonding member bonding the optical waveguide and the connecting member to each other, wherein:
in a cross section of the optical waveguide by a plane perpendicular to the first direction, a first part of the core is covered by the cladding and a second part of the core is exposed from the cladding,
the core is disposed off-center toward an outer circumference of the cladding, and
when viewed from an end face of the connecting member, a first distance between a center of the end face and an optical axis of the core is shorter than a second distance between the center of the end face and a center of the cladding.