Patterned mirror edge for stray beam and interference mitigation

US11852852B2 · kind B2 · utility

Assignee

• Apple Inc. · US

Inventors

• Ariel Lipson · Haifa, IL
• Itai Afek · Kfar Sava, IL
• Jonathan Hauser · Ramat Gan, IL
• Roei Remez · Nes Ziona, IL
• Moshe Kriman · Nes Ziona, IL
• Zafrir Mor · Ein HaBsor, IL

Key dates

• Filing date: Oct 30, 2022
• Grant date: Dec 26, 2023
• Expiry date: Oct 30, 2042

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S17/89
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for optical sensing includes providing a mirror comprising a central reflective region surrounded by a peripheral glare-suppressing region. A beam of light from a laser light source is directed to reflect from the central region so as to pass through an output optic along an axis toward a target scene. The light returned from the target scene through the output optic is focused onto an optical sensor, via collection optics having a collection aperture surrounding the mirror.