公开(公告)号：US20190106803A1

公开(公告)日：2019-04-11

申请号：US16215417

申请日：2018-12-10

Applicant: Apple Inc.

Inventor： Lucy E. BROWNING ,  Stephen B. LYNCH ,  Christopher D. PREST ,  Peter N. RUSSELL-CLARKE ,  Masashige TATEBE ,  Michael S. NASHNER ,  Daniel T. MCDONALD ,  Brian S. TRYON ,  Jody R. AKANA

IPC: C25D11/18 ,  B23K26/352 ,  B23K26/354 ,  C25D11/04 ,  C25D11/02 ,  C25D11/12

Abstract: The embodiments described herein relate to forming anodized films that have a white appearance. In some embodiments, an anodized film having pores with light diffusing pore walls created by varying the current density during an anodizing process is described. In some embodiments, an anodized film having light diffusing micro-cracks created by a laser cracking procedure is described. In some embodiments, a sputtered layer of light diffusing aluminum is provided below an anodized film. In some embodiments, light diffusing particles are infused within openings of an anodized layer.

公开(公告)号：US20200383223A1

公开(公告)日：2020-12-03

申请号：US16563719

申请日：2019-09-06

Applicant: Apple Inc.

Inventor： James A. CURRAN ,  Todd S. MINTZ ,  Daniel T. MCDONALD

IPC: H05K5/04 ,  H05K5/00 ,  H05K5/06 ,  C25D11/26 ,  C25D11/24

Abstract: This application relates to a method for forming an enclosure for a portable electronic device. The enclosure includes a metal substrate having a first b* value. The method includes forming an anodized layer that overlays and is formed from the metal substrate, wherein the anodized layer has a second b* value that is no greater than 0.3 of the first b* value and no less than 0.3 less than the first *b value.

公开(公告)号：US20180099352A1

公开(公告)日：2018-04-12

申请号：US15817010

申请日：2017-11-17

Applicant: Apple Inc.

Inventor： Daniel T. MCDONALD ,  Michael S. NASHNER ,  Peter N. RUSSELL-CLARKE ,  Masashige TATEBE

IPC: B23K26/00 ,  C25D11/18 ,  C25D11/04

CPC classification number: B23K26/354 ,  B23K26/53 ,  C25D11/04 ,  C25D11/18 ,  Y10T428/24471

Abstract: The embodiments described herein relate to forming white appearing metal oxide films by forming cracks within the metal oxide films. In some embodiments, the methods involve directing a laser beam at a metal oxide film causing portions of the metal oxide film to melt, cool, contract, and crack. The cracks have irregular surfaces that can diffusely reflect visible light incident a top surface of the metal oxide film, thereby imparting a white appearance to the metal oxide film. In some embodiments, the cracks are formed beneath a top surface of a metal oxide film, thereby leaving a continuous and uninterrupted metal oxide film top surface.