公开(公告)号：US20220249209A1

公开(公告)日：2022-08-11

申请号：US17582106

申请日：2022-01-24

Applicant: Qisda Corporation

Inventor： Chien-Hung LIN ,  Po-Fu WU ,  Jun-Ming SHEN ,  Szu-Fan CHEN ,  Yi-Ling LO

IPC: A61C9/00 ,  A61B1/00 ,  A61B1/24 ,  G02B26/08

Abstract: An oral scanner including a heating element, a reflecting element and a temperature difference generating element is provided. The temperature difference generating element has a high temperature end and a low temperature end. The high temperature end is connected to the reflecting element to heat the reflecting element, and the low temperature end is connected to the heating element to cool the heating element.