公开(公告)号：US20220397483A1

公开(公告)日：2022-12-15

申请号：US17664832

申请日：2022-05-24

申请人： Apple Inc.

发明人： Michael K. MCCORD ,  Ehsan KHAJEH ,  Brian M. KING ,  Tong CHEN ,  Yaser SHANJANI

IPC分类号： G01M11/02

摘要： Acoustic optical integrity detection system architectures and methods can be used to detect optical integrity of an optical component by detecting a discontinuity on and/or in the optical component (e.g., on the optical surface and/or within the bulk of the optical component). In some examples, integrity detection can be used to ensure safety compliance of an optical system, optionally including a laser. Acoustic integrity detection can utilize transducers (e.g., piezoelectric transducers) to transmit ultrasonic waves along an optical surface and/or through the thickness of an optical component. A discontinuity of the optical surface can interact with the transmitted wave causing attenuation, redirection and/or reflection of at least a portion of the transmitted wave. Portions of the transmitted wave energy after interaction with the discontinuity can be measured to determine discontinuity location, type, and/or severity.