公开(公告)号：US20210072442A1

公开(公告)日：2021-03-11

申请号：US16965190

申请日：2018-08-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Peiling LIN ,  Ze YUAN ,  Guoping WU ,  Xin LI ,  Meng LI ,  Xiaojun DAI ,  Jingjing NIE

IPC: G02B5/28 ,  C23C14/34 ,  C23C14/54 ,  C23C14/50 ,  C23C14/08 ,  C23C14/10 ,  H01J37/34 ,  H01J37/32 ,  H04B1/3827

Abstract: An enclosure of a mobile terminal and a sputter coating apparatus for making the same are provided. The enclosure includes a substrate and a composite film layer coated onto the substrate. The composite film layer has a thickness changing along a first direction. A difference in thickness between any two regions arranged along the first direction of the composite film layer is less than or equal to 350 nanometers. The enclosure has a spatially varying color corresponding to a wavelength between 400 nanometers and 760 nanometers.