公开(公告)号：US20250085463A1

公开(公告)日：2025-03-13

申请号：US18523605

申请日：2023-11-29

Applicant: Apple Inc.

Inventor： Brian S Tryon ,  Jozef M Matlak ,  Ziqing Duan ,  Yi Zhou ,  Di Fan ,  Donghai Yu

IPC: G02B5/28

Abstract: An electronic device may be provided with conductive structures such as conductive housing structures. A visible-light-reflecting coating may be formed on the conductive structures. The coating may have adhesion and transition layers, an opaque coloring layer on the adhesion and transition layers, and a two-layer thin-film interference filter on the opaque coloring layer. The two-layer thin-film interference filter may an uppermost diamond-like carbon (DLC) or CrSiCN layer and a lowermost SiCrCN layer. The coating may exhibit a dark blue or black color that has a relatively uniform visual response even when the underlying conductive structures have a three-dimensional shape.

公开(公告)号：US20250079036A1

公开(公告)日：2025-03-06

申请号：US18524120

申请日：2023-11-30

Applicant: Apple Inc.

Inventor： Richard K Akrobetu ,  Jozef M Matlak ,  Shinjita Acharya ,  Brian S Tryon

IPC: H01B1/04 ,  H01R13/03

Abstract: An electronic device such as a power charger may include a conductive contact that conveys power signals. A coating may have adhesion and transition layers on the contact. The coating may have a thin-film interference filter having an uppermost layer that includes diamond-like carbon (DLC). If desired, the thin-film interference filter may have additional DLC layers stacked under the uppermost layer. The DLC layer(s) may include nitrogen to optimize corrosion resistance. The DLC layer(s) may include first and second metal dopants such as tungsten and chromium to optimize the electrical resistance and conductivity of the coating. The coating may exhibit a deep black, grey, and/or blue color.