Baugruppe Optischer Sensoren und Verfahren zur Herstellung einer Baugruppe Optischer Sensor

Details

Veröffentlichungs-Nr.

EP3255456

Aktenzeichen

EP16173353

Anmeldetag

7. Juni 2016

Veröffentlichung

6. Januar 2021

Erteilung

6. Januar 2021

Rechtsraum

EP

IPC

G01S17/10G01S7/481G01S7/497

Abstract

An optical sensor arrangement for time-of-flight comprises a first and a second cavity (C1, C2) separated by an optical barrier (B) and covered by a cover arrangement (CA). An optical emitter (E) is arranged in the first cavity (C1), a measurement and a reference photodetector are arranged in the second cavity (C2). The cover arrangement (CA) comprises a plate (CP) and layers of material (LY) arranged on an inner main surface (SI) thereof The layers (LY) comprise an opaque coating (OC) with a first and second aperture (A1, A2) above the first cavity (C1), and with a third and fourth aperture (A3, A4) above the second cavity (C2). The measurement photodetector (PM) is configured to detect light entering the second cavity (C2) through the fourth aperture (A4). The second and the third aperture (A2, A3) establish a reference path for light from the emitter (E) to the reference photodetector (PR).

Anmelder

Firma

ams AG

Land

🇦🇹 Österreich

Fachgebiete